[{"id":"aabeyir-2020-m1","source":"aabeyir-2020","name":"Kintampo woodlands mixed-species AGB, M1: dbh only","output":{"quantity":"agb"},"expression":"0.161 * D^(2 * 1.193)","published":{"expression":"0.161 * DBH^(2 * 1.193)","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"31 woodland tree species harvested for charcoal","group":"broadleaf"},"region":{"scope":"site","countries":["GH"],"place":"Kintampo Municipality, forest-savanna transition zone, Ghana","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":745,"dbh_min_cm":5,"dbh_max_cm":48.2,"method":"non-linear regression (variance proportional to squared mean)"},"evidence":[{"field":"expression","quote":"M1 a1 0.161 0.121–0.201* 0.129–0.193 b1 1.193 1.158–1.228","locator":"Table 5 (parameter estimates)"},{"field":"expression","quote":"M1 a1[(dbh)^(2b1)]","locator":"Table 3 (model forms)"},{"field":"fit.n_trees","quote":"Destructive sampling was carried out on 745 trees","locator":"Abstract"},{"field":"fit.dbh_max_cm","quote":"The dbh of individual trees ranged from 5.0 to 48.2 cm","locator":"Modelling process, Data description"}],"check":[{"inputs":{"D":25},"expected":348.59,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":40},"expected":1069.9,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Mixed-species model; AGB is the sum of logs, small branches, twigs and leaves, so foliage is included. Fitted by non-linear regression, so no back-transformation correction. Wood density ρ is the species mean of disc samples (oven-dry mass / volume), in g/cm³. Coefficients are the Table 5 estimates rounded as printed."},{"id":"aabeyir-2020-m2","source":"aabeyir-2020","name":"Kintampo woodlands mixed-species AGB, M2: dbh and wood density","output":{"quantity":"agb"},"expression":"0.202 * rho * D^(2 * 1.205)","published":{"expression":"0.202 * WD * DBH^(2 * 1.205)","units":{"DBH":"cm","WD":"g/cm3"},"variables":{"DBH":"D","WD":"rho"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"31 woodland tree species harvested for charcoal","group":"broadleaf"},"region":{"scope":"site","countries":["GH"],"place":"Kintampo Municipality, forest-savanna transition zone, Ghana","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":745,"dbh_min_cm":5,"dbh_max_cm":48.2,"method":"non-linear regression (variance proportional to squared mean)"},"evidence":[{"field":"expression","quote":"M2 a2 0.202 0.166–0.238 0.162–0.242 b2 1.205 1.180–1.231","locator":"Table 5 (parameter estimates)"},{"field":"expression","quote":"M2 a2[ρ(dbh)^(2b2)]","locator":"Table 3 (model forms)"},{"field":"fit.n_trees","quote":"Destructive sampling was carried out on 745 trees","locator":"Abstract"},{"field":"fit.dbh_max_cm","quote":"The dbh of individual trees ranged from 5.0 to 48.2 cm","locator":"Modelling process, Data description"}],"check":[{"inputs":{"D":25,"rho":0.65},"expected":307.11,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":40,"rho":0.65},"expected":953.3,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Mixed-species model; AGB is the sum of logs, small branches, twigs and leaves, so foliage is included. Fitted by non-linear regression, so no back-transformation correction. Wood density ρ is the species mean of disc samples (oven-dry mass / volume), in g/cm³. Coefficients are the Table 5 estimates rounded as printed."},{"id":"aabeyir-2020-m3","source":"aabeyir-2020","name":"Kintampo woodlands mixed-species AGB, M3: dbh and wood density","output":{"quantity":"agb"},"expression":"0.227 * (rho * D^2)^1.196","published":{"expression":"0.227 * (WD * DBH^2)^1.196","units":{"DBH":"cm","WD":"g/cm3"},"variables":{"DBH":"D","WD":"rho"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"31 woodland tree species harvested for charcoal","group":"broadleaf"},"region":{"scope":"site","countries":["GH"],"place":"Kintampo Municipality, forest-savanna transition zone, Ghana","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":745,"dbh_min_cm":5,"dbh_max_cm":48.2,"method":"non-linear regression (variance proportional to squared mean)"},"evidence":[{"field":"expression","quote":"M3 a3 0.227 0.190–0.264 0.182–0.272 b3 1.196 1.172–1.220","locator":"Table 5 (parameter estimates)"},{"field":"expression","quote":"M3 a3[(ρ(dbh)^2)^b3]","locator":"Table 3 (model forms)"},{"field":"fit.n_trees","quote":"Destructive sampling was carried out on 745 trees","locator":"Abstract"},{"field":"fit.dbh_max_cm","quote":"The dbh of individual trees ranged from 5.0 to 48.2 cm","locator":"Modelling process, Data description"}],"check":[{"inputs":{"D":25,"rho":0.65},"expected":299.32,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":40,"rho":0.65},"expected":921.29,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Mixed-species model; AGB is the sum of logs, small branches, twigs and leaves, so foliage is included. Fitted by non-linear regression, so no back-transformation correction. Wood density ρ is the species mean of disc samples (oven-dry mass / volume), in g/cm³. Coefficients are the Table 5 estimates rounded as printed."},{"id":"aabeyir-2020-m4","source":"aabeyir-2020","name":"Kintampo woodlands mixed-species AGB, M4: dbh and height","output":{"quantity":"agb"},"expression":"0.05 * H * D^(2 * 0.974)","published":{"expression":"0.05 * HT * DBH^(2 * 0.974)","units":{"DBH":"cm","HT":"m"},"variables":{"DBH":"D","HT":"H"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"31 woodland tree species harvested for charcoal","group":"broadleaf"},"region":{"scope":"site","countries":["GH"],"place":"Kintampo Municipality, forest-savanna transition zone, Ghana","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":745,"dbh_min_cm":5,"dbh_max_cm":48.2,"method":"non-linear regression (variance proportional to squared mean)"},"evidence":[{"field":"expression","quote":"M4 a4 0.05 0.039–0.062 0.04–0.060 b4 0.974 0.941–1.007","locator":"Table 5 (parameter estimates)"},{"field":"expression","quote":"M4 a4[H(dbh)^(2b4)]","locator":"Table 3 (model forms)"},{"field":"fit.n_trees","quote":"Destructive sampling was carried out on 745 trees","locator":"Abstract"},{"field":"fit.dbh_max_cm","quote":"The dbh of individual trees ranged from 5.0 to 48.2 cm","locator":"Modelling process, Data description"}],"check":[{"inputs":{"D":25,"H":12},"expected":317.2,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":40,"H":12},"expected":792.44,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Mixed-species model; AGB is the sum of logs, small branches, twigs and leaves, so foliage is included. Fitted by non-linear regression, so no back-transformation correction. Wood density ρ is the species mean of disc samples (oven-dry mass / volume), in g/cm³. Coefficients are the Table 5 estimates rounded as printed."},{"id":"aabeyir-2020-m5","source":"aabeyir-2020","name":"Kintampo woodlands mixed-species AGB, M5: dbh and height","output":{"quantity":"agb"},"expression":"0.059 * (D^2 * H)^0.966","published":{"expression":"0.059 * (DBH^2 * HT)^0.966","units":{"DBH":"cm","HT":"m"},"variables":{"DBH":"D","HT":"H"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"31 woodland tree species harvested for charcoal","group":"broadleaf"},"region":{"scope":"site","countries":["GH"],"place":"Kintampo Municipality, forest-savanna transition zone, Ghana","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":745,"dbh_min_cm":5,"dbh_max_cm":48.2,"method":"non-linear regression (variance proportional to squared mean)"},"evidence":[{"field":"expression","quote":"M5 a5 0.059 0.044–0.073 0.047–0.071 b5 0.966 0.940–0.992","locator":"Table 5 (parameter estimates)"},{"field":"expression","quote":"M5 a5[((dbh)^2H)^b5]","locator":"Table 3 (model forms)"},{"field":"fit.n_trees","quote":"Destructive sampling was carried out on 745 trees","locator":"Abstract"},{"field":"fit.dbh_max_cm","quote":"The dbh of individual trees ranged from 5.0 to 48.2 cm","locator":"Modelling process, Data description"}],"check":[{"inputs":{"D":25,"H":12},"expected":326.71,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":40,"H":12},"expected":810.07,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Mixed-species model; AGB is the sum of logs, small branches, twigs and leaves, so foliage is included. Fitted by non-linear regression, so no back-transformation correction. Wood density ρ is the species mean of disc samples (oven-dry mass / volume), in g/cm³. Coefficients are the Table 5 estimates rounded as printed."},{"id":"aabeyir-2020-m6","source":"aabeyir-2020","name":"Kintampo woodlands mixed-species AGB, M6 (best model): dbh, height and wood density","output":{"quantity":"agb"},"expression":"0.0580 * rho * (D^2 * H)^0.999","published":{"expression":"0.0580 * WD * (DBH^2 * HT)^0.999","units":{"DBH":"cm","HT":"m","WD":"g/cm3"},"variables":{"DBH":"D","HT":"H","WD":"rho"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"31 woodland tree species harvested for charcoal","group":"broadleaf"},"region":{"scope":"site","countries":["GH"],"place":"Kintampo Municipality, forest-savanna transition zone, Ghana","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":745,"dbh_min_cm":5,"dbh_max_cm":48.2,"method":"non-linear regression (variance proportional to squared mean)"},"evidence":[{"field":"expression","quote":"M6 a6 0.058 0.049–0.067 0.046–0.070 b6 0.999 0.983–1.015","locator":"Table 5 (parameter estimates)"},{"field":"expression","quote":"M6 a6[ρ((dbh)^2H)^b6]","locator":"Table 3 (model forms)"},{"field":"fit.n_trees","quote":"Destructive sampling was carried out on 745 trees","locator":"Abstract"},{"field":"fit.dbh_max_cm","quote":"The dbh of individual trees ranged from 5.0 to 48.2 cm","locator":"Modelling process, Data description"},{"field":"expression","quote":"AGB = 0.0580ρ((dbh)2H)0.999","locator":"Abstract"}],"check":[{"inputs":{"D":25,"H":12,"rho":0.65},"expected":280.24,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":40,"H":12,"rho":0.65},"expected":716.74,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Mixed-species model; AGB is the sum of logs, small branches, twigs and leaves, so foliage is included. Fitted by non-linear regression, so no back-transformation correction. Wood density ρ is the species mean of disc samples (oven-dry mass / volume), in g/cm³. Coefficients are the Table 5 estimates rounded as printed. Abstract prints a6 as 0.0580; Table 5 prints 0.058. The abstract value is used."},{"id":"aabeyir-2020-m7","source":"aabeyir-2020","name":"Kintampo woodlands mixed-species AGB, M7: dbh, height and wood density","output":{"quantity":"agb"},"expression":"0.053 * (rho * D^2 * H)^1.009","published":{"expression":"0.053 * (WD * DBH^2 * HT)^1.009","units":{"DBH":"cm","HT":"m","WD":"g/cm3"},"variables":{"DBH":"D","HT":"H","WD":"rho"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"31 woodland tree species harvested for charcoal","group":"broadleaf"},"region":{"scope":"site","countries":["GH"],"place":"Kintampo Municipality, forest-savanna transition zone, Ghana","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":745,"dbh_min_cm":5,"dbh_max_cm":48.2,"method":"non-linear regression (variance proportional to squared mean)"},"evidence":[{"field":"expression","quote":"M7 a7 0.053 0.045–0.061 0.042–0.064 b7 1.009 0.992–1.025","locator":"Table 5 (parameter estimates)"},{"field":"expression","quote":"M7 a7[(ρ(dbh)^2H)^b7]","locator":"Table 3 (model forms)"},{"field":"fit.n_trees","quote":"Destructive sampling was carried out on 745 trees","locator":"Abstract"},{"field":"fit.dbh_max_cm","quote":"The dbh of individual trees ranged from 5.0 to 48.2 cm","locator":"Modelling process, Data description"}],"check":[{"inputs":{"D":25,"H":12,"rho":0.65},"expected":278.9,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":40,"H":12,"rho":0.65},"expected":720.04,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Mixed-species model; AGB is the sum of logs, small branches, twigs and leaves, so foliage is included. Fitted by non-linear regression, so no back-transformation correction. Wood density ρ is the species mean of disc samples (oven-dry mass / volume), in g/cm³. Coefficients are the Table 5 estimates rounded as printed."},{"id":"abdul-hamid-2022-branch-d","source":"abdul-hamid-2022","name":"Mixed mangrove branch and twig biomass, power model (D)","output":{"quantity":"branch_biomass"},"expression":"0.0553 * D^2.3055","published":{"expression":"0.0553 * D^2.3055","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Seven mangrove species (Bruguiera cylindrica, B. parviflora, B. sexangula, Ceriops tagal, Rhizophora apiculata, R. mucronata, Xylocarpus granatum)","group":"mangrove"},"region":{"scope":"site","countries":["MY"],"place":"Sungai Pulai Forest Reserve, Johor","biomes":["tropical","mangrove"]},"stand":"natural","fit":{"n_trees":15,"dbh_min_cm":9,"dbh_max_cm":33,"r2":0.7792,"method":"power function (intrinsically linear), SPSS general linear model"},"evidence":[{"field":"expression","quote":"(b) M of branches and twigs 0.0553D2.3055 0.7792","locator":"Table 2"},{"field":"fit.n_trees","quote":"Destructive sampling was conducted using the selective random sampling method on 15 standing trees.","locator":"Abstract"},{"field":"fit.dbh_min_cm","quote":"in the range of DBH from 9.0 cm to 33.0 cm","locator":"Section 3.1"},{"field":"fit.r2","quote":"0.7792","locator":"Table 2"}],"check":[{"inputs":{"D":10},"expected":11.174,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":20},"expected":55.24,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":30},"expected":140.68,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2, equation 1. Output in kg dry mass (aboveground biomass in kg per Section 2.4). D was measured at about 1.37 m above ground, above the highest stilt root for Rhizophora (Section 2.2)."},{"id":"abdul-hamid-2022-branch-d2h","source":"abdul-hamid-2022","name":"Mixed mangrove branch and twig biomass, power model (D^2 H)","output":{"quantity":"branch_biomass"},"expression":"0.0221 * (D^2 * H)^0.8745","published":{"expression":"0.0221 * (D^2 * H)^0.8745","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Seven mangrove species (Bruguiera cylindrica, B. parviflora, B. sexangula, Ceriops tagal, Rhizophora apiculata, R. mucronata, Xylocarpus granatum)","group":"mangrove"},"region":{"scope":"site","countries":["MY"],"place":"Sungai Pulai Forest Reserve, Johor","biomes":["tropical","mangrove"]},"stand":"natural","fit":{"n_trees":15,"dbh_min_cm":9,"dbh_max_cm":33,"r2":0.688,"method":"power function (intrinsically linear), SPSS general linear model"},"evidence":[{"field":"expression","quote":"(b) M of branches and twigs 0.0221D2H0.8745 0.6880","locator":"Table 2"},{"field":"fit.n_trees","quote":"Destructive sampling was conducted using the selective random sampling method on 15 standing trees.","locator":"Abstract"},{"field":"fit.dbh_min_cm","quote":"in the range of DBH from 9.0 cm to 33.0 cm","locator":"Section 3.1"},{"field":"fit.r2","quote":"0.6880","locator":"Table 2"}],"check":[{"inputs":{"D":10,"H":12},"expected":10.893,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":19.5},"expected":55.979,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":30,"H":22},"expected":126.42,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation form a(D^2 H)^b read from Table 2 (printed 'D2H' with exponent; the paper's equation images were not in the text copy read). Output in kg dry mass. D was measured at about 1.37 m above ground, above the highest stilt root for Rhizophora (Section 2.2). H in the paper is \"stem height\" (Table 2 note; Section 2.3), not total tree height; it is mapped to canonical H here. The paper's best model, Eq. 3 with wood density (0.00475 ρ^0.6309 D^2.28787, R2 0.9697), is not added."},{"id":"abdul-hamid-2022-leaf-d","source":"abdul-hamid-2022","name":"Mixed mangrove leaf biomass, power model (D)","output":{"quantity":"foliage_biomass"},"expression":"0.0347 * D^1.9762","published":{"expression":"0.0347 * D^1.9762","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Seven mangrove species (Bruguiera cylindrica, B. parviflora, B. sexangula, Ceriops tagal, Rhizophora apiculata, R. mucronata, Xylocarpus granatum)","group":"mangrove"},"region":{"scope":"site","countries":["MY"],"place":"Sungai Pulai Forest Reserve, Johor","biomes":["tropical","mangrove"]},"stand":"natural","fit":{"n_trees":15,"dbh_min_cm":9,"dbh_max_cm":33,"r2":0.5834,"method":"power function (intrinsically linear), SPSS general linear model"},"evidence":[{"field":"expression","quote":"(c) M of leaves 0.0347D1.9762 0.5834","locator":"Table 2"},{"field":"fit.n_trees","quote":"Destructive sampling was conducted using the selective random sampling method on 15 standing trees.","locator":"Abstract"},{"field":"fit.dbh_min_cm","quote":"in the range of DBH from 9.0 cm to 33.0 cm","locator":"Section 3.1"},{"field":"fit.r2","quote":"0.5834","locator":"Table 2"}],"check":[{"inputs":{"D":10},"expected":3.285,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":20},"expected":12.925,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":30},"expected":28.802,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2, equation 1. Output in kg dry mass (aboveground biomass in kg per Section 2.4). D was measured at about 1.37 m above ground, above the highest stilt root for Rhizophora (Section 2.2)."},{"id":"abdul-hamid-2022-leaf-d2h","source":"abdul-hamid-2022","name":"Mixed mangrove leaf biomass, power model (D^2 H)","output":{"quantity":"foliage_biomass"},"expression":"0.0125 * (D^2 * H)^0.7767","published":{"expression":"0.0125 * (D^2 * H)^0.7767","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Seven mangrove species (Bruguiera cylindrica, B. parviflora, B. sexangula, Ceriops tagal, Rhizophora apiculata, R. mucronata, Xylocarpus granatum)","group":"mangrove"},"region":{"scope":"site","countries":["MY"],"place":"Sungai Pulai Forest Reserve, Johor","biomes":["tropical","mangrove"]},"stand":"natural","fit":{"n_trees":15,"dbh_min_cm":9,"dbh_max_cm":33,"r2":0.553,"method":"power function (intrinsically linear), SPSS general linear model"},"evidence":[{"field":"expression","quote":"(c) M of leaves 0.0125D2H0.7767 0.5530","locator":"Table 2"},{"field":"fit.n_trees","quote":"Destructive sampling was conducted using the selective random sampling method on 15 standing trees.","locator":"Abstract"},{"field":"fit.dbh_min_cm","quote":"in the range of DBH from 9.0 cm to 33.0 cm","locator":"Section 3.1"},{"field":"fit.r2","quote":"0.5530","locator":"Table 2"}],"check":[{"inputs":{"D":10,"H":12},"expected":3.0797,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":19.5},"expected":13.18,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":30,"H":22},"expected":27.173,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation form a(D^2 H)^b read from Table 2 (printed 'D2H' with exponent; the paper's equation images were not in the text copy read). Output in kg dry mass. D was measured at about 1.37 m above ground, above the highest stilt root for Rhizophora (Section 2.2). H in the paper is \"stem height\" (Table 2 note; Section 2.3), not total tree height; it is mapped to canonical H here. The paper's best model, Eq. 3 with wood density (0.00475 ρ^0.6309 D^2.28787, R2 0.9697), is not added."},{"id":"abdul-hamid-2022-stem-d","source":"abdul-hamid-2022","name":"Mixed mangrove stem biomass, power model (D)","output":{"quantity":"stem_biomass"},"expression":"0.1761 * D^2.3769","published":{"expression":"0.1761 * D^2.3769","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Seven mangrove species (Bruguiera cylindrica, B. parviflora, B. sexangula, Ceriops tagal, Rhizophora apiculata, R. mucronata, Xylocarpus granatum)","group":"mangrove"},"region":{"scope":"site","countries":["MY"],"place":"Sungai Pulai Forest Reserve, Johor","biomes":["tropical","mangrove"]},"stand":"natural","fit":{"n_trees":15,"dbh_min_cm":9,"dbh_max_cm":33,"r2":0.9223,"method":"power function (intrinsically linear), SPSS general linear model"},"evidence":[{"field":"expression","quote":"(a) M of stem 0.1761D2.3769 0.9223","locator":"Table 2"},{"field":"fit.n_trees","quote":"Destructive sampling was conducted using the selective random sampling method on 15 standing trees.","locator":"Abstract"},{"field":"fit.dbh_min_cm","quote":"in the range of DBH from 9.0 cm to 33.0 cm","locator":"Section 3.1"},{"field":"fit.r2","quote":"0.9223","locator":"Table 2"}],"check":[{"inputs":{"D":10},"expected":41.943,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":20},"expected":217.86,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":30},"expected":571.12,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2, equation 1. Output in kg dry mass (aboveground biomass in kg per Section 2.4). D was measured at about 1.37 m above ground, above the highest stilt root for Rhizophora (Section 2.2)."},{"id":"abdul-hamid-2022-stem-d2h","source":"abdul-hamid-2022","name":"Mixed mangrove stem biomass, power model (D^2 H)","output":{"quantity":"stem_biomass"},"expression":"0.0355 * (D^2 * H)^0.9778","published":{"expression":"0.0355 * (D^2 * H)^0.9778","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Seven mangrove species (Bruguiera cylindrica, B. parviflora, B. sexangula, Ceriops tagal, Rhizophora apiculata, R. mucronata, Xylocarpus granatum)","group":"mangrove"},"region":{"scope":"site","countries":["MY"],"place":"Sungai Pulai Forest Reserve, Johor","biomes":["tropical","mangrove"]},"stand":"natural","fit":{"n_trees":15,"dbh_min_cm":9,"dbh_max_cm":33,"r2":0.9579,"method":"power function (intrinsically linear), SPSS general linear model"},"evidence":[{"field":"expression","quote":"(a) M of stem 0.0355D2H0.9778 0.9579","locator":"Table 2"},{"field":"fit.n_trees","quote":"Destructive sampling was conducted using the selective random sampling method on 15 standing trees.","locator":"Abstract"},{"field":"fit.dbh_min_cm","quote":"in the range of DBH from 9.0 cm to 33.0 cm","locator":"Section 3.1"},{"field":"fit.r2","quote":"0.9579","locator":"Table 2"}],"check":[{"inputs":{"D":10,"H":12},"expected":36.396,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":19.5},"expected":226.94,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":30,"H":22},"expected":564.3,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation form a(D^2 H)^b read from Table 2 (printed 'D2H' with exponent; the paper's equation images were not in the text copy read). Output in kg dry mass. D was measured at about 1.37 m above ground, above the highest stilt root for Rhizophora (Section 2.2). H in the paper is \"stem height\" (Table 2 note; Section 2.3), not total tree height; it is mapped to canonical H here. The paper's best model, Eq. 3 with wood density (0.00475 ρ^0.6309 D^2.28787, R2 0.9697), is not added."},{"id":"abdul-hamid-2022-total-d","source":"abdul-hamid-2022","name":"Mixed mangrove total aboveground biomass, power model (D)","output":{"quantity":"agb"},"expression":"0.2999 * D^2.3001","published":{"expression":"0.2999 * D^2.3001","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Seven mangrove species (Bruguiera cylindrica, B. parviflora, B. sexangula, Ceriops tagal, Rhizophora apiculata, R. mucronata, Xylocarpus granatum)","group":"mangrove"},"region":{"scope":"site","countries":["MY"],"place":"Sungai Pulai Forest Reserve, Johor","biomes":["tropical","mangrove"]},"stand":"natural","fit":{"n_trees":15,"dbh_min_cm":9,"dbh_max_cm":33,"r2":0.9543,"method":"power function (intrinsically linear), SPSS general linear model"},"evidence":[{"field":"expression","quote":"Total biomass 0.2999D2.3001 0.9543","locator":"Table 2"},{"field":"fit.n_trees","quote":"Destructive sampling was conducted using the selective random sampling method on 15 standing trees.","locator":"Abstract"},{"field":"fit.dbh_min_cm","quote":"in the range of DBH from 9.0 cm to 33.0 cm","locator":"Section 3.1"},{"field":"fit.r2","quote":"0.9543","locator":"Table 2"}],"check":[{"inputs":{"D":10},"expected":59.852,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":20},"expected":294.76,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":30},"expected":749.04,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2, equation 1. Output in kg dry mass (aboveground biomass in kg per Section 2.4). D was measured at about 1.37 m above ground, above the highest stilt root for Rhizophora (Section 2.2)."},{"id":"abdul-hamid-2022-total-d2h","source":"abdul-hamid-2022","name":"Mixed mangrove total aboveground biomass, power model (D^2 H)","output":{"quantity":"agb"},"expression":"0.0739 * (D^2 * H)^0.9291","published":{"expression":"0.0739 * (D^2 * H)^0.9291","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Seven mangrove species (Bruguiera cylindrica, B. parviflora, B. sexangula, Ceriops tagal, Rhizophora apiculata, R. mucronata, Xylocarpus granatum)","group":"mangrove"},"region":{"scope":"site","countries":["MY"],"place":"Sungai Pulai Forest Reserve, Johor","biomes":["tropical","mangrove"]},"stand":"natural","fit":{"n_trees":15,"dbh_min_cm":9,"dbh_max_cm":33,"r2":0.9556,"method":"power function (intrinsically linear), SPSS general linear model"},"evidence":[{"field":"expression","quote":"Total biomass 0.0739D2H0.9291 0.9556","locator":"Table 2"},{"field":"fit.n_trees","quote":"Destructive sampling was conducted using the selective random sampling method on 15 standing trees.","locator":"Abstract"},{"field":"fit.dbh_min_cm","quote":"in the range of DBH from 9.0 cm to 33.0 cm","locator":"Section 3.1"},{"field":"fit.r2","quote":"0.9556","locator":"Table 2"}],"check":[{"inputs":{"D":10,"H":12},"expected":53.643,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":19.5},"expected":305.34,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":30,"H":22},"expected":725.56,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation form a(D^2 H)^b read from Table 2 (printed 'D2H' with exponent; the paper's equation images were not in the text copy read). Output in kg dry mass. D was measured at about 1.37 m above ground, above the highest stilt root for Rhizophora (Section 2.2). H in the paper is \"stem height\" (Table 2 note; Section 2.3), not total tree height; it is mapped to canonical H here. The paper's best model, Eq. 3 with wood density (0.00475 ρ^0.6309 D^2.28787, R2 0.9697), is not added."},{"id":"adam-2018-hybrid-power","source":"adam-2018","name":"Acacia hybrid plantation, Sarawak, AGB from D (power)","output":{"quantity":"agb"},"expression":"0.175 * D^2.35","published":{"expression":"0.175 * DBH^2.350","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Acacia hybrid","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MY"],"place":"Daiken Sarawak plantation, Bintulu district, Sarawak","biomes":["tropical"]},"stand":"plantation","fit":{"n_trees":36,"dbh_min_cm":12.8,"dbh_max_cm":40.9,"r2":0.96,"method":"power regression of dry AGB on DBH"},"evidence":[{"field":"expression","quote":"y = 0.175D2.350","locator":"Table 2, model 2"},{"field":"fit.n_trees","quote":"36 trees of Acacia hybrid were harvested","locator":"Field Sampling"},{"field":"fit.dbh_min_cm","quote":"The DBH of felled Acacia hybrid and second generation A. mangium ranged from 12.8 to 40.9 cm and 11.6 to 41.5 cm, respectively","locator":"Results and Discussion, Aboveground Biomass Models"}],"check":[{"inputs":{"D":15},"expected":101.59,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25},"expected":337.44,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":40},"expected":1018.3,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"About 10-year-old stand. AGB is the sum of stem, branch and leaf dry mass. The paper also prints linear, exponential and logarithmic fits (Table 2) but rejects them (negative predictions for small trees); only the power model, which the authors select, is included."},{"id":"adam-2018-mangium-power","source":"adam-2018","name":"Acacia mangium (2nd generation) plantation, Sarawak, AGB from D (power)","output":{"quantity":"agb"},"expression":"0.1173 * D^2.454","published":{"expression":"0.1173 * DBH^2.454","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Acacia mangium","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MY"],"place":"Daiken Sarawak plantation, Bintulu district, Sarawak","biomes":["tropical"]},"stand":"plantation","fit":{"n_trees":35,"dbh_min_cm":11.6,"dbh_max_cm":41.5,"r2":0.94,"method":"power regression of dry AGB on DBH"},"evidence":[{"field":"expression","quote":"y = 0.1173D2.454","locator":"Table 2, model 2"},{"field":"fit.n_trees","quote":"Thirty five trees of second generation A. mangium","locator":"Field Sampling"},{"field":"fit.dbh_min_cm","quote":"The DBH of felled Acacia hybrid and second generation A. mangium ranged from 12.8 to 40.9 cm and 11.6 to 41.5 cm, respectively","locator":"Results and Discussion, Aboveground Biomass Models"}],"check":[{"inputs":{"D":15},"expected":90.246,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25},"expected":316.11,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":40},"expected":1001.7,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"About 10-year-old stand. AGB is the sum of stem, branch and leaf dry mass. The paper also prints linear, exponential and logarithmic fits (Table 2) but rejects them (negative predictions for small trees); only the power model, which the authors select, is included."},{"id":"akbar-2012-dbh-h-ln","source":"akbar-2012","name":"S. teysmaniana peat swamp, ln(AGB) on DBH and total height","output":{"quantity":"agb"},"expression":"exp(-2.99 + 2.35 * ln(D) + 0.44 * ln(H))","published":{"expression":"exp(-2.99 + 2.35 * ln(DBH) + 0.44 * ln(TBH))","units":{"DBH":"cm","TBH":"m"},"variables":{"DBH":"D","TBH":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Shorea teysmaniana","family":"Dipterocarpaceae","group":"broadleaf"},"region":{"scope":"site","countries":["ID"],"place":"Peat swamp forest, Barito Selatan, Central Kalimantan","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":20,"dbh_min_cm":7.3,"dbh_max_cm":29.2,"h_min_m":8.2,"h_max_m":20.92,"r2":0.99,"method":"log-log regression"},"evidence":[{"field":"expression","quote":"Ln(TAGB)= -2,99+2,35Ln(DBH)+0,44Ln(TBH)","locator":"Tabel 3, row 3, p. 8"},{"field":"fit.n_trees","quote":"n=20","locator":"Abstract / Tabel 3"},{"field":"fit.r2","quote":"0,99","locator":"Tabel 3"}],"check":[{"inputs":{"D":10,"H":12},"expected":33.6,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":25,"H":18},"expected":345.89,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 1 gives DBH 7.30-29.20 cm and total height 8.20-20.92 m (n=20); the text says the models apply to 5-40 cm trees. R2 printed as 0,99 (rounded). The paper states no back-transform correction factor, so none is applied. Biomass is total aboveground (stem, branches, twigs, leaves). TBH is the total height (tinggi total)."},{"id":"akbar-2012-dbh-ln","source":"akbar-2012","name":"S. teysmaniana peat swamp, ln(AGB) on DBH","output":{"quantity":"agb"},"expression":"exp(-2.36 + 2.58 * ln(D))","published":{"expression":"exp(-2.36 + 2.58 * ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Shorea teysmaniana","family":"Dipterocarpaceae","group":"broadleaf"},"region":{"scope":"site","countries":["ID"],"place":"Peat swamp forest, Barito Selatan, Central Kalimantan","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":20,"dbh_min_cm":7.3,"dbh_max_cm":29.2,"h_min_m":8.2,"h_max_m":20.92,"r2":0.99,"method":"log-log regression"},"evidence":[{"field":"expression","quote":"Ln(TAGB) = -2,36+2,58 Ln(DBH)","locator":"Tabel 3, row 1, p. 8"},{"field":"fit.n_trees","quote":"n=20","locator":"Abstract / Tabel 3"},{"field":"fit.r2","quote":"0,99","locator":"Tabel 3"}],"check":[{"inputs":{"D":10},"expected":35.9,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":25},"expected":381.72,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 1 gives DBH 7.30-29.20 cm and total height 8.20-20.92 m (n=20); the text says the models apply to 5-40 cm trees. R2 printed as 0,99 (rounded). The paper states no back-transform correction factor, so none is applied. Biomass is total aboveground (stem, branches, twigs, leaves). Also printed as the power form TAGB = 0,09 (DBH)^2,58 (Tabel 3, row 2), a rounded equivalent of this one; not added separately."},{"id":"akbar-2012-dbh-wd-ln","source":"akbar-2012","name":"S. teysmaniana peat swamp, ln(AGB) on DBH and wood density","output":{"quantity":"agb"},"expression":"exp(-1.03 + 2.08 * ln(D) - 0.51 * ln(rho))","published":{"expression":"exp(-1.03 + 2.08 * ln(DBH) - 0.51 * ln(WD))","units":{"DBH":"cm","WD":"g/cm3"},"variables":{"DBH":"D","WD":"rho"},"output_unit":"kg"},"taxon":{"level":"species","name":"Shorea teysmaniana","family":"Dipterocarpaceae","group":"broadleaf"},"region":{"scope":"site","countries":["ID"],"place":"Peat swamp forest, Barito Selatan, Central Kalimantan","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":20,"dbh_min_cm":7.3,"dbh_max_cm":29.2,"h_min_m":8.2,"h_max_m":20.92,"r2":0.99,"method":"log-log regression"},"evidence":[{"field":"expression","quote":"Ln(TAGB)= -1,03+2,08Ln(DBH)-0,51Ln(WD)","locator":"Tabel 3, row 4, p. 8"},{"field":"fit.n_trees","quote":"n=20","locator":"Abstract / Tabel 3"},{"field":"fit.r2","quote":"0,99","locator":"Tabel 3"}],"check":[{"inputs":{"D":10,"rho":0.5},"expected":61.12,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":25,"rho":0.6},"expected":374.57,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 1 gives DBH 7.30-29.20 cm and total height 8.20-20.92 m (n=20); the text says the models apply to 5-40 cm trees. R2 printed as 0,99 (rounded). The paper states no back-transform correction factor, so none is applied. Biomass is total aboveground (stem, branches, twigs, leaves). WD is wood density in gr/cm3 (oven-dry weight over saturated volume). Table 1 lists only 5 wood-density observations although Tabel 3 prints n=20."},{"id":"altanzagas-2022-agb-czekanowskii-d-n","source":"altanzagas-2022","name":"Chekanovsky larch AGB from DBH only, unweighted (Table 3)","output":{"quantity":"agb"},"expression":"1.019 * exp(-2.748 + 2.493 * ln(D))","published":{"expression":"1.019 * exp(-2.748 + 2.493 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix czekanowskii","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["MN"],"place":"Bayangol, Norovlin sum, Khentii, Mongolia (Eree Nuruu)","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":10,"dbh_min_cm":5.3,"dbh_max_cm":40,"h_min_m":4.6,"h_max_m":19.2,"cf":1.019,"method":"log-log regression, unweighted"},"evidence":[{"field":"expression","quote":"N lnŶ = lna + b×lnD -2.748 2.493 CF 1.019","locator":"Хүснэгт 3 (Table 3), Газрын дээрх биомасс (above-ground biomass), p. 124-126"},{"field":"fit.cf","quote":"ŷ = exp(lnŷ)CF; CF=exp(S²/2)","locator":"Eqs. 7-8, Methods p. 119"},{"field":"fit.n_trees","quote":"Чекановскийн шинэсэн ойгоос авсан 10 шинэс модны ... диаметр 18.6 (5.3-40.0) см, өндөр 10.9 (4.6-19.2) м","locator":"Results p. 120"}],"check":[{"inputs":{"D":20},"expected":114.3407,"origin":"computed","note":"computed from the Table coefficients and the printed back-transform y = exp(lny) x CF (eq. 8)"},{"inputs":{"D":35},"expected":461.4181,"origin":"computed","note":"computed from the Table coefficients and the printed back-transform y = exp(lny) x CF (eq. 8)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper is in Mongolian; table values quoted as printed. Unweighted (N) regression row; the printed CF is applied as exp(lnŷ) x CF per eq. 8. Adjusted R² and RMSE are in the table but are not stored (adjusted R², and RMSE on the log or weighted scale). AGB is the sum of stem, branch and needle mass (Table 1), so foliage is included. Natural log assumed from the paper's ln notation."},{"id":"altanzagas-2022-agb-czekanowskii-d-w","source":"altanzagas-2022","name":"Chekanovsky larch AGB from DBH only, weighted (Table 3)","output":{"quantity":"agb"},"expression":"exp(-2.882 + 2.548 * ln(D))","published":{"expression":"exp(-2.882 + 2.548 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix czekanowskii","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["MN"],"place":"Bayangol, Norovlin sum, Khentii, Mongolia (Eree Nuruu)","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":10,"dbh_min_cm":5.3,"dbh_max_cm":40,"h_min_m":4.6,"h_max_m":19.2,"cf":1,"method":"log-log regression, weighted"},"evidence":[{"field":"expression","quote":"W lnŶ = lna + b×lnD -2.882 2.548 CF 1.000","locator":"Хүснэгт 3 (Table 3), Газрын дээрх биомасс (above-ground biomass), p. 124-126"},{"field":"fit.cf","quote":"ŷ = exp(lnŷ)CF; CF=exp(S²/2)","locator":"Eqs. 7-8, Methods p. 119"},{"field":"fit.n_trees","quote":"Чекановскийн шинэсэн ойгоос авсан 10 шинэс модны ... диаметр 18.6 (5.3-40.0) см, өндөр 10.9 (4.6-19.2) м","locator":"Results p. 120"}],"check":[{"inputs":{"D":20},"expected":115.7145,"origin":"computed","note":"computed from the Table coefficients and the printed back-transform y = exp(lny) x CF (eq. 8)"},{"inputs":{"D":35},"expected":481.5581,"origin":"computed","note":"computed from the Table coefficients and the printed back-transform y = exp(lny) x CF (eq. 8)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper is in Mongolian; table values quoted as printed. Weighted (W) regression row; printed CF 1.000, so no correction applies. Adjusted R² and RMSE are in the table but are not stored (adjusted R², and RMSE on the log or weighted scale). AGB is the sum of stem, branch and needle mass (Table 1), so foliage is included. Natural log assumed from the paper's ln notation."},{"id":"altanzagas-2022-agb-czekanowskii-d2h-n","source":"altanzagas-2022","name":"Chekanovsky larch AGB from D²H, unweighted (Table 3)","output":{"quantity":"agb"},"expression":"1.018 * exp(-3.349 + 0.954 * ln(D^2 * H))","published":{"expression":"1.018 * exp(-3.349 + 0.954 * ln(D^2 * H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix czekanowskii","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["MN"],"place":"Bayangol, Norovlin sum, Khentii, Mongolia (Eree Nuruu)","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":10,"dbh_min_cm":5.3,"dbh_max_cm":40,"h_min_m":4.6,"h_max_m":19.2,"cf":1.018,"method":"log-log regression, unweighted"},"evidence":[{"field":"expression","quote":"N lnŶ = lna + b×ln(D²×H) -3.349 0.954 CF 1.018","locator":"Хүснэгт 3 (Table 3), Газрын дээрх биомасс (above-ground biomass), p. 124-126"},{"field":"fit.cf","quote":"ŷ = exp(lnŷ)CF; CF=exp(S²/2)","locator":"Eqs. 7-8, Methods p. 119"},{"field":"fit.n_trees","quote":"Чекановскийн шинэсэн ойгоос авсан 10 шинэс модны ... диаметр 18.6 (5.3-40.0) см, өндөр 10.9 (4.6-19.2) м","locator":"Results p. 120"}],"check":[{"inputs":{"D":20,"H":11},"expected":106.9423,"origin":"computed","note":"computed from the Table coefficients and the printed back-transform y = exp(lny) x CF (eq. 8)"},{"inputs":{"D":35,"H":16},"expected":444.7417,"origin":"computed","note":"computed from the Table coefficients and the printed back-transform y = exp(lny) x CF (eq. 8)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper is in Mongolian; table values quoted as printed. Unweighted (N) regression row; the printed CF is applied as exp(lnŷ) x CF per eq. 8. Adjusted R² and RMSE are in the table but are not stored (adjusted R², and RMSE on the log or weighted scale). AGB is the sum of stem, branch and needle mass (Table 1), so foliage is included. Natural log assumed from the paper's ln notation."},{"id":"altanzagas-2022-agb-czekanowskii-d2h-w","source":"altanzagas-2022","name":"Chekanovsky larch AGB from D²H, weighted (Table 3)","output":{"quantity":"agb"},"expression":"exp(-3.241 + 0.934 * ln(D^2 * H))","published":{"expression":"exp(-3.241 + 0.934 * ln(D^2 * H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix czekanowskii","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["MN"],"place":"Bayangol, Norovlin sum, Khentii, Mongolia (Eree Nuruu)","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":10,"dbh_min_cm":5.3,"dbh_max_cm":40,"h_min_m":4.6,"h_max_m":19.2,"cf":1,"method":"log-log regression, weighted"},"evidence":[{"field":"expression","quote":"W lnŶ = lna + b×ln(D²×H) -3.241 0.934 CF 1.000","locator":"Хүснэгт 3 (Table 3), Газрын дээрх биомасс (above-ground biomass), p. 124-126"},{"field":"fit.cf","quote":"ŷ = exp(lnŷ)CF; CF=exp(S²/2)","locator":"Eqs. 7-8, Methods p. 119"},{"field":"fit.n_trees","quote":"Чекановскийн шинэсэн ойгоос авсан 10 шинэс модны ... диаметр 18.6 (5.3-40.0) см, өндөр 10.9 (4.6-19.2) м","locator":"Results p. 120"}],"check":[{"inputs":{"D":20,"H":11},"expected":98.9547,"origin":"computed","note":"computed from the Table coefficients and the printed back-transform y = exp(lny) x CF (eq. 8)"},{"inputs":{"D":35,"H":16},"expected":399.4098,"origin":"computed","note":"computed from the Table coefficients and the printed back-transform y = exp(lny) x CF (eq. 8)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper is in Mongolian; table values quoted as printed. Weighted (W) regression row; printed CF 1.000, so no correction applies. Adjusted R² and RMSE are in the table but are not stored (adjusted R², and RMSE on the log or weighted scale). AGB is the sum of stem, branch and needle mass (Table 1), so foliage is included. Natural log assumed from the paper's ln notation."},{"id":"altanzagas-2022-agb-czekanowskii-dh-w","source":"altanzagas-2022","name":"Chekanovsky larch AGB from D and H, weighted (Table 3)","output":{"quantity":"agb"},"expression":"exp(-3.123 + 2.071 * ln(D) + 0.66 * ln(H))","published":{"expression":"exp(-3.123 + 2.071 * ln(D) + 0.66 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix czekanowskii","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["MN"],"place":"Bayangol, Norovlin sum, Khentii, Mongolia (Eree Nuruu)","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":10,"dbh_min_cm":5.3,"dbh_max_cm":40,"h_min_m":4.6,"h_max_m":19.2,"cf":1,"method":"log-log regression, weighted"},"evidence":[{"field":"expression","quote":"W lnŶ = lna + b×lnD + c×lnH -3.123 2.071 0.66 CF 1.000","locator":"Хүснэгт 3 (Table 3), Газрын дээрх биомасс (above-ground biomass), p. 124-126"},{"field":"fit.cf","quote":"ŷ = exp(lnŷ)CF; CF=exp(S²/2)","locator":"Eqs. 7-8, Methods p. 119"},{"field":"fit.n_trees","quote":"Чекановскийн шинэсэн ойгоос авсан 10 шинэс модны ... диаметр 18.6 (5.3-40.0) см, өндөр 10.9 (4.6-19.2) м","locator":"Results p. 120"}],"check":[{"inputs":{"D":20,"H":11},"expected":106.0353,"origin":"computed","note":"computed from the Table coefficients and the printed back-transform y = exp(lny) x CF (eq. 8)"},{"inputs":{"D":35,"H":16},"expected":432.6956,"origin":"computed","note":"computed from the Table coefficients and the printed back-transform y = exp(lny) x CF (eq. 8)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper is in Mongolian; table values quoted as printed. Weighted (W) regression row; printed CF 1.000, so no correction applies. Adjusted R² and RMSE are in the table but are not stored (adjusted R², and RMSE on the log or weighted scale). AGB is the sum of stem, branch and needle mass (Table 1), so foliage is included. Natural log assumed from the paper's ln notation."},{"id":"altanzagas-2022-agb-gmelinii-d-n","source":"altanzagas-2022","name":"Gmelin larch AGB from DBH only, unweighted (Table 3)","output":{"quantity":"agb"},"expression":"1.02 * exp(-2.389 + 2.403 * ln(D))","published":{"expression":"1.02 * exp(-2.389 + 2.403 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix gmelinii","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["MN"],"place":"Khaichiin Am, Eree Nuruu (Ereen mountains), Bayan-Uul sum, Dornod aimag, Mongolia","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":15,"dbh_min_cm":8.7,"dbh_max_cm":42.6,"h_min_m":8.2,"h_max_m":23.3,"cf":1.02,"method":"log-log regression, unweighted"},"evidence":[{"field":"expression","quote":"N lnŶ = lna + b×lnD -2.389 2.403 CF 1.020","locator":"Хүснэгт 3 (Table 3), Газрын дээрх биомасс (above-ground biomass), p. 124-126"},{"field":"fit.cf","quote":"ŷ = exp(lnŷ)CF; CF=exp(S²/2)","locator":"Eqs. 7-8, Methods p. 119"},{"field":"fit.n_trees","quote":"Гмелиний шинэсэн ойгоос авсан 15 шинэс модны ... диаметр 21.6 (8.7-42.6) см, өндөр 13.5 (8.2-23.3) м","locator":"Results p. 120"}],"check":[{"inputs":{"D":20},"expected":125.1543,"origin":"computed","note":"computed from the Table coefficients and the printed back-transform y = exp(lny) x CF (eq. 8)"},{"inputs":{"D":35},"expected":480.2487,"origin":"computed","note":"computed from the Table coefficients and the printed back-transform y = exp(lny) x CF (eq. 8)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper is in Mongolian; table values quoted as printed. Unweighted (N) regression row; the printed CF is applied as exp(lnŷ) x CF per eq. 8. Adjusted R² and RMSE are in the table but are not stored (adjusted R², and RMSE on the log or weighted scale). AGB is the sum of stem, branch and needle mass (Table 1), so foliage is included. Natural log assumed from the paper's ln notation."},{"id":"altanzagas-2022-agb-gmelinii-d-w","source":"altanzagas-2022","name":"Gmelin larch AGB from DBH only, weighted (Table 3)","output":{"quantity":"agb"},"expression":"exp(-3.103 + 2.663 * ln(D))","published":{"expression":"exp(-3.103 + 2.663 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix gmelinii","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["MN"],"place":"Khaichiin Am, Eree Nuruu (Ereen mountains), Bayan-Uul sum, Dornod aimag, Mongolia","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":15,"dbh_min_cm":8.7,"dbh_max_cm":42.6,"h_min_m":8.2,"h_max_m":23.3,"cf":1,"method":"log-log regression, weighted"},"evidence":[{"field":"expression","quote":"W lnŶ = lna + b×lnD -3.103 2.663 CF 1.000","locator":"Хүснэгт 3 (Table 3), Газрын дээрх биомасс (above-ground biomass), p. 124-126"},{"field":"fit.cf","quote":"ŷ = exp(lnŷ)CF; CF=exp(S²/2)","locator":"Eqs. 7-8, Methods p. 119"},{"field":"fit.n_trees","quote":"Гмелиний шинэсэн ойгоос авсан 15 шинэс модны ... диаметр 21.6 (8.7-42.6) см, өндөр 13.5 (8.2-23.3) м","locator":"Results p. 120"}],"check":[{"inputs":{"D":20},"expected":130.9264,"origin":"computed","note":"computed from the Table coefficients and the printed back-transform y = exp(lny) x CF (eq. 8)"},{"inputs":{"D":35},"expected":581.082,"origin":"computed","note":"computed from the Table coefficients and the printed back-transform y = exp(lny) x CF (eq. 8)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper is in Mongolian; table values quoted as printed. Weighted (W) regression row; printed CF 1.000, so no correction applies. Adjusted R² and RMSE are in the table but are not stored (adjusted R², and RMSE on the log or weighted scale). AGB is the sum of stem, branch and needle mass (Table 1), so foliage is included. Natural log assumed from the paper's ln notation."},{"id":"altanzagas-2022-agb-gmelinii-d2h-n","source":"altanzagas-2022","name":"Gmelin larch AGB from D²H, unweighted (Table 3)","output":{"quantity":"agb"},"expression":"1.027 * exp(-2.98 + 0.909 * ln(D^2 * H))","published":{"expression":"1.027 * exp(-2.98 + 0.909 * ln(D^2 * H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix gmelinii","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["MN"],"place":"Khaichiin Am, Eree Nuruu (Ereen mountains), Bayan-Uul sum, Dornod aimag, Mongolia","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":15,"dbh_min_cm":8.7,"dbh_max_cm":42.6,"h_min_m":8.2,"h_max_m":23.3,"cf":1.027,"method":"log-log regression, unweighted"},"evidence":[{"field":"expression","quote":"N lnŶ = lna + b×ln(D²×H) -2.98 0.909 CF 1.027","locator":"Хүснэгт 3 (Table 3), Газрын дээрх биомасс (above-ground biomass), p. 124-126"},{"field":"fit.cf","quote":"ŷ = exp(lnŷ)CF; CF=exp(S²/2)","locator":"Eqs. 7-8, Methods p. 119"},{"field":"fit.n_trees","quote":"Гмелиний шинэсэн ойгоос авсан 15 шинэс модны ... диаметр 21.6 (8.7-42.6) см, өндөр 13.5 (8.2-23.3) м","locator":"Results p. 120"}],"check":[{"inputs":{"D":20,"H":13},"expected":124.5145,"origin":"computed","note":"computed from the Table coefficients and the printed back-transform y = exp(lny) x CF (eq. 8)"},{"inputs":{"D":35,"H":19},"expected":486.2679,"origin":"computed","note":"computed from the Table coefficients and the printed back-transform y = exp(lny) x CF (eq. 8)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper is in Mongolian; table values quoted as printed. Unweighted (N) regression row; the printed CF is applied as exp(lnŷ) x CF per eq. 8. Adjusted R² and RMSE are in the table but are not stored (adjusted R², and RMSE on the log or weighted scale). AGB is the sum of stem, branch and needle mass (Table 1), so foliage is included. Natural log assumed from the paper's ln notation."},{"id":"altanzagas-2022-agb-gmelinii-d2h-w","source":"altanzagas-2022","name":"Gmelin larch AGB from D²H, weighted (Table 3)","output":{"quantity":"agb"},"expression":"exp(-3.898 + 1.024 * ln(D^2 * H))","published":{"expression":"exp(-3.898 + 1.024 * ln(D^2 * H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix gmelinii","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["MN"],"place":"Khaichiin Am, Eree Nuruu (Ereen mountains), Bayan-Uul sum, Dornod aimag, Mongolia","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":15,"dbh_min_cm":8.7,"dbh_max_cm":42.6,"h_min_m":8.2,"h_max_m":23.3,"cf":1,"method":"log-log regression, weighted"},"evidence":[{"field":"expression","quote":"W lnŶ = lna + b×ln(D²×H) -3.898 1.024 CF 1.000","locator":"Хүснэгт 3 (Table 3), Газрын дээрх биомасс (above-ground biomass), p. 124-126"},{"field":"fit.cf","quote":"ŷ = exp(lnŷ)CF; CF=exp(S²/2)","locator":"Eqs. 7-8, Methods p. 119"},{"field":"fit.n_trees","quote":"Гмелиний шинэсэн ойгоос авсан 15 шинэс модны ... диаметр 21.6 (8.7-42.6) см, өндөр 13.5 (8.2-23.3) м","locator":"Results p. 120"}],"check":[{"inputs":{"D":20,"H":13},"expected":129.5113,"origin":"computed","note":"computed from the Table coefficients and the printed back-transform y = exp(lny) x CF (eq. 8)"},{"inputs":{"D":35,"H":19},"expected":600.9179,"origin":"computed","note":"computed from the Table coefficients and the printed back-transform y = exp(lny) x CF (eq. 8)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper is in Mongolian; table values quoted as printed. Weighted (W) regression row; printed CF 1.000, so no correction applies. Adjusted R² and RMSE are in the table but are not stored (adjusted R², and RMSE on the log or weighted scale). AGB is the sum of stem, branch and needle mass (Table 1), so foliage is included. Natural log assumed from the paper's ln notation."},{"id":"altanzagas-2022-agb-gmelinii-dh-n","source":"altanzagas-2022","name":"Gmelin larch AGB from D and H, unweighted (Table 3)","output":{"quantity":"agb"},"expression":"1.021 * exp(-2.246 + 2.527 * ln(D) - 0.2 * ln(H))","published":{"expression":"1.021 * exp(-2.246 + 2.527 * ln(D) - 0.2 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix gmelinii","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["MN"],"place":"Khaichiin Am, Eree Nuruu (Ereen mountains), Bayan-Uul sum, Dornod aimag, Mongolia","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":15,"dbh_min_cm":8.7,"dbh_max_cm":42.6,"h_min_m":8.2,"h_max_m":23.3,"cf":1.021,"method":"log-log regression, unweighted"},"evidence":[{"field":"expression","quote":"N lnŶ = lna + b×lnD + c×lnH -2.246 2.527 -0.2 CF 1.021","locator":"Хүснэгт 3 (Table 3), Газрын дээрх биомасс (above-ground biomass), p. 124-126"},{"field":"fit.cf","quote":"ŷ = exp(lnŷ)CF; CF=exp(S²/2)","locator":"Eqs. 7-8, Methods p. 119"},{"field":"fit.n_trees","quote":"Гмелиний шинэсэн ойгоос авсан 15 шинэс модны ... диаметр 21.6 (8.7-42.6) см, өндөр 13.5 (8.2-23.3) м","locator":"Results p. 120"}],"check":[{"inputs":{"D":20,"H":13},"expected":125.4627,"origin":"computed","note":"computed from the Table coefficients and the printed back-transform y = exp(lny) x CF (eq. 8)"},{"inputs":{"D":35,"H":19},"expected":478.3101,"origin":"computed","note":"computed from the Table coefficients and the printed back-transform y = exp(lny) x CF (eq. 8)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper is in Mongolian; table values quoted as printed. Unweighted (N) regression row; the printed CF is applied as exp(lnŷ) x CF per eq. 8. Adjusted R² and RMSE are in the table but are not stored (adjusted R², and RMSE on the log or weighted scale). AGB is the sum of stem, branch and needle mass (Table 1), so foliage is included. Natural log assumed from the paper's ln notation."},{"id":"altanzagas-2022-agb-gmelinii-dh-w","source":"altanzagas-2022","name":"Gmelin larch AGB from D and H, weighted (Table 3)","output":{"quantity":"agb"},"expression":"exp(-3.279 + 2.535 * ln(D) + 0.218 * ln(H))","published":{"expression":"exp(-3.279 + 2.535 * ln(D) + 0.218 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix gmelinii","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["MN"],"place":"Khaichiin Am, Eree Nuruu (Ereen mountains), Bayan-Uul sum, Dornod aimag, Mongolia","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":15,"dbh_min_cm":8.7,"dbh_max_cm":42.6,"h_min_m":8.2,"h_max_m":23.3,"cf":1,"method":"log-log regression, weighted"},"evidence":[{"field":"expression","quote":"W lnŶ = lna + b×lnD + c×lnH -3.279 2.535 0.218 CF 1.000","locator":"Хүснэгт 3 (Table 3), Газрын дээрх биомасс (above-ground biomass), p. 124-126"},{"field":"fit.cf","quote":"ŷ = exp(lnŷ)CF; CF=exp(S²/2)","locator":"Eqs. 7-8, Methods p. 119"},{"field":"fit.n_trees","quote":"Гмелиний шинэсэн ойгоос авсан 15 шинэс модны ... диаметр 21.6 (8.7-42.6) см, өндөр 13.5 (8.2-23.3) м","locator":"Results p. 120"}],"check":[{"inputs":{"D":20,"H":13},"expected":130.8878,"origin":"computed","note":"computed from the Table coefficients and the printed back-transform y = exp(lny) x CF (eq. 8)"},{"inputs":{"D":35,"H":19},"expected":587.3935,"origin":"computed","note":"computed from the Table coefficients and the printed back-transform y = exp(lny) x CF (eq. 8)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper is in Mongolian; table values quoted as printed. Weighted (W) regression row; printed CF 1.000, so no correction applies. Adjusted R² and RMSE are in the table but are not stored (adjusted R², and RMSE on the log or weighted scale). AGB is the sum of stem, branch and needle mass (Table 1), so foliage is included. Natural log assumed from the paper's ln notation."},{"id":"altanzagas-2022-vol-czekanowskii-dh-w","source":"altanzagas-2022","name":"Chekanovsky larch stem volume from D and H, weighted (Table 2, selected)","output":{"quantity":"stem_volume"},"expression":"exp(-11.416 + 0.903 * ln(D) + 2.9 * ln(H))","published":{"expression":"exp(-11.416 + 0.903 * ln(D) + 2.9 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"m3"},"taxon":{"level":"species","name":"Larix czekanowskii","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["MN"],"place":"Bayangol, Norovlin sum, Khentii, Mongolia (Eree Nuruu)","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":10,"dbh_min_cm":5.3,"dbh_max_cm":40,"h_min_m":4.6,"h_max_m":19.2,"cf":1,"method":"log-log regression, weighted"},"evidence":[{"field":"expression","quote":"W lnŶ = lna + b × lnD + c × lnH -11.416 0.903 2.900 CF 1.000","locator":"Хүснэгт 2 (Table 2), Larix czekanowskii, p. 122"},{"field":"fit.cf","quote":"ŷ = exp(lnŷ)CF; CF=exp(S²/2)","locator":"Eqs. 7-8, Methods p. 119"},{"field":"fit.n_trees","quote":"Чекановскийн шинэсэн ойгоос авсан 10 шинэс модны ... диаметр 18.6 (5.3-40.0) см, өндөр 10.9 (4.6-19.2) м","locator":"Results p. 120"}],"check":[{"inputs":{"D":20,"H":11},"expected":0.1726,"origin":"computed","note":"computed from the Table 2 coefficients and the printed back-transform y = exp(lny) x CF (eq. 8)"},{"inputs":{"D":35,"H":16},"expected":0.8479,"origin":"computed","note":"computed from the Table 2 coefficients and the printed back-transform y = exp(lny) x CF (eq. 8)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper is in Mongolian; table values quoted as printed. Weighted (W) regression row; printed CF 1.000, so no correction applies. Adjusted R² and RMSE are in the table but are not stored (adjusted R², and RMSE on the log or weighted scale). Stem volume (m3) from Smalian sections. Natural log assumed from the paper's ln notation."},{"id":"altanzagas-2022-vol-gmelinii-d2h-n","source":"altanzagas-2022","name":"Gmelin larch stem volume from D²H, unweighted (Table 2, selected)","output":{"quantity":"stem_volume"},"expression":"1.031 * exp(-7.829 + 0.748 * ln(D^2 * H))","published":{"expression":"1.031 * exp(-7.829 + 0.748 * ln(D^2 * H))","units":{"D":"cm","H":"m"},"output_unit":"m3"},"taxon":{"level":"species","name":"Larix gmelinii","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["MN"],"place":"Khaichiin Am, Eree Nuruu (Ereen mountains), Bayan-Uul sum, Dornod aimag, Mongolia","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":15,"dbh_min_cm":8.7,"dbh_max_cm":42.6,"h_min_m":8.2,"h_max_m":23.3,"cf":1.031,"method":"log-log regression, unweighted"},"evidence":[{"field":"expression","quote":"N lnŶ = lna + b × ln(D² × H) -7.829 0.748 CF 1.031","locator":"Хүснэгт 2 (Table 2), Larix gmelinii, p. 122"},{"field":"fit.cf","quote":"ŷ = exp(lnŷ)CF; CF=exp(S²/2)","locator":"Eqs. 7-8, Methods p. 119"},{"field":"fit.n_trees","quote":"Гмелиний шинэсэн ойгоос авсан 15 шинэс модны ... диаметр 21.6 (8.7-42.6) см, өндөр 13.5 (8.2-23.3) м","locator":"Results p. 120"}],"check":[{"inputs":{"D":20,"H":13},"expected":0.247,"origin":"computed","note":"computed from the Table 2 coefficients and the printed back-transform y = exp(lny) x CF (eq. 8)"},{"inputs":{"D":35,"H":19},"expected":0.7579,"origin":"computed","note":"computed from the Table 2 coefficients and the printed back-transform y = exp(lny) x CF (eq. 8)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper is in Mongolian; table values quoted as printed. Unweighted (N) regression row; the printed CF is applied as exp(lnŷ) x CF per eq. 8. Adjusted R² and RMSE are in the table but are not stored (adjusted R², and RMSE on the log or weighted scale). Stem volume (m3) from Smalian sections. Natural log assumed from the paper's ln notation."},{"id":"amanuel-2024-total-m1","source":"amanuel-2024","name":"Acacia-Commiphora total AGB, M1 (D only)","output":{"quantity":"agb"},"expression":"exp(-0.1108 + 1.5765 * ln(D))","published":{"expression":"exp(-0.1108 + 1.5765 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Eleven woody species of the Acacia-Commiphora biome (mixed)","group":"broadleaf"},"region":{"scope":"site","countries":["ET"],"place":"Bena-Tsemay district, southern Ethiopia","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":140,"r2":0.71,"method":"ln-ln multiple linear regression (SAS); no correction factor stated"},"evidence":[{"field":"expression","quote":"1 –0.1108 0.2361 1.5765 0.0955 0.53 0.71 0.71","locator":"Table 3, AGBTotal rows, p. 6; model form in Table 1, p. 4"},{"field":"model form","quote":"AGBest. = exp {α + β1Ln (D)}","locator":"Table 1, p. 4"},{"field":"fit.n_trees","quote":"The biomass of the 140 individual trees was considered for biomass model development.","locator":"Methods, Biomass measurement, p. 3"},{"field":"fit.r2","quote":"1 –0.1108 0.2361 1.5765 0.0955 0.53 0.71 0.71","locator":"Table 3, AGBTotal, columns R2 / Adj-R2"}],"check":[{"inputs":{"D":8},"expected":23.747,"origin":"computed","note":"computed from the published form (coefficients as printed, no correction factor)"},{"inputs":{"D":15},"expected":63.972,"origin":"computed","note":"computed from the published form (coefficients as printed, no correction factor)"},{"inputs":{"D":25},"expected":143.13,"origin":"computed","note":"computed from the published form (coefficients as printed, no correction factor)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Total aboveground dry biomass (stem + branches + foliage summed). In the paper D is DBH (cm), DSH30 is stem diameter at 30 cm (mapped to D30), CW is crown width (mapped to CD, m), rho is basic wood density (g/cm3). R2 shown is the printed R2 (Adj-R2 is within 0.01). No back-transformation correction factor is printed, so none is applied. The paper prints the mean D (12.61 cm) and a D range width of 29 cm but no min or max, so no DBH range is stored. RMSE printed in Table 3 is on the log scale. n = 140 is the full sample; Methods (p. 3) say 30% was held out for validation, so the fitted n may be ~98."},{"id":"amanuel-2024-total-m2","source":"amanuel-2024","name":"Acacia-Commiphora total AGB, M2 (rho D2 H)","output":{"quantity":"agb"},"expression":"exp(-0.3789 + 0.6896 * ln(rho * D^2 * H))","published":{"expression":"exp(-0.3789 + 0.6896 * ln(rho * D^2 * H))","units":{"D":"cm","H":"m","rho":"g/cm3"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Eleven woody species of the Acacia-Commiphora biome (mixed)","group":"broadleaf"},"region":{"scope":"site","countries":["ET"],"place":"Bena-Tsemay district, southern Ethiopia","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":140,"r2":0.8,"method":"ln-ln multiple linear regression (SAS); no correction factor stated"},"evidence":[{"field":"expression","quote":"2 –0.3789 0.2017 0.6896 0.0333 0.44 0.80 0.79","locator":"Table 3, AGBTotal rows, p. 6; model form in Table 1, p. 4"},{"field":"model form","quote":"AGBest. = exp {α + β1Ln (ρ.D2.H)}","locator":"Table 1, p. 4"},{"field":"fit.n_trees","quote":"The biomass of the 140 individual trees was considered for biomass model development.","locator":"Methods, Biomass measurement, p. 3"},{"field":"fit.r2","quote":"2 –0.3789 0.2017 0.6896 0.0333 0.44 0.80 0.79","locator":"Table 3, AGBTotal, columns R2 / Adj-R2"}],"check":[{"inputs":{"D":8,"H":4,"rho":0.7},"expected":24.51,"origin":"computed","note":"computed from the published form (coefficients as printed, no correction factor)"},{"inputs":{"D":15,"H":6,"rho":0.7},"expected":77.144,"origin":"computed","note":"computed from the published form (coefficients as printed, no correction factor)"},{"inputs":{"D":25,"H":8,"rho":0.7},"expected":190.3,"origin":"computed","note":"computed from the published form (coefficients as printed, no correction factor)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Total aboveground dry biomass (stem + branches + foliage summed). In the paper D is DBH (cm), DSH30 is stem diameter at 30 cm (mapped to D30), CW is crown width (mapped to CD, m), rho is basic wood density (g/cm3). R2 shown is the printed R2 (Adj-R2 is within 0.01). No back-transformation correction factor is printed, so none is applied. The paper prints the mean D (12.61 cm) and a D range width of 29 cm but no min or max, so no DBH range is stored. RMSE printed in Table 3 is on the log scale. n = 140 is the full sample; Methods (p. 3) say 30% was held out for validation, so the fitted n may be ~98."},{"id":"amanuel-2024-total-m4","source":"amanuel-2024","name":"Acacia-Commiphora total AGB, M4 (D, H)","output":{"quantity":"agb"},"expression":"exp(-0.5956 + 1.2118 * ln(D) + 0.8325 * ln(H))","published":{"expression":"exp(-0.5956 + 1.2118 * ln(D) + 0.8325 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Eleven woody species of the Acacia-Commiphora biome (mixed)","group":"broadleaf"},"region":{"scope":"site","countries":["ET"],"place":"Bena-Tsemay district, southern Ethiopia","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":140,"r2":0.74,"method":"ln-ln multiple linear regression (SAS); no correction factor stated"},"evidence":[{"field":"expression","quote":"4 –0.5956 0.2632 1.2118 0.1363 0.8325 0.2304 0.50 0.74 0.73","locator":"Table 3, AGBTotal rows, p. 6; model form in Table 1, p. 4"},{"field":"model form","quote":"AGBest. = exp {α + β1Ln (D) + β2Ln (H)}","locator":"Table 1, p. 4"},{"field":"fit.n_trees","quote":"The biomass of the 140 individual trees was considered for biomass model development.","locator":"Methods, Biomass measurement, p. 3"},{"field":"fit.r2","quote":"4 –0.5956 0.2632 1.2118 0.1363 0.8325 0.2304 0.50 0.74 0.73","locator":"Table 3, AGBTotal, columns R2 / Adj-R2"}],"check":[{"inputs":{"D":8,"H":4},"expected":21.723,"origin":"computed","note":"computed from the published form (coefficients as printed, no correction factor)"},{"inputs":{"D":15,"H":6},"expected":65.213,"origin":"computed","note":"computed from the published form (coefficients as printed, no correction factor)"},{"inputs":{"D":25,"H":8},"expected":153.88,"origin":"computed","note":"computed from the published form (coefficients as printed, no correction factor)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Total aboveground dry biomass (stem + branches + foliage summed). In the paper D is DBH (cm), DSH30 is stem diameter at 30 cm (mapped to D30), CW is crown width (mapped to CD, m), rho is basic wood density (g/cm3). R2 shown is the printed R2 (Adj-R2 is within 0.01). No back-transformation correction factor is printed, so none is applied. The paper prints the mean D (12.61 cm) and a D range width of 29 cm but no min or max, so no DBH range is stored. RMSE printed in Table 3 is on the log scale. n = 140 is the full sample; Methods (p. 3) say 30% was held out for validation, so the fitted n may be ~98."},{"id":"amanuel-2024-total-m5","source":"amanuel-2024","name":"Acacia-Commiphora total AGB, M5 (D, crown width)","output":{"quantity":"agb"},"expression":"exp(-0.3013 + 0.9545 * ln(D) + 1.0361 * ln(CD))","published":{"expression":"exp(-0.3013 + 0.9545 * ln(D) + 1.0361 * ln(CW))","units":{"CW":"m","D":"cm"},"variables":{"CW":"CD"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Eleven woody species of the Acacia-Commiphora biome (mixed)","group":"broadleaf"},"region":{"scope":"site","countries":["ET"],"place":"Bena-Tsemay district, southern Ethiopia","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":140,"r2":0.79,"method":"ln-ln multiple linear regression (SAS); no correction factor stated"},"evidence":[{"field":"expression","quote":"5 –0.3013 0.2230 0.9545 0.1577 1.0361 0.2172 0.45 0.79 0.78","locator":"Table 3, AGBTotal rows, p. 6; model form in Table 1, p. 4"},{"field":"model form","quote":"AGBest. = exp {α + β1Ln (D) + β2Ln (CW)}","locator":"Table 1, p. 4"},{"field":"fit.n_trees","quote":"The biomass of the 140 individual trees was considered for biomass model development.","locator":"Methods, Biomass measurement, p. 3"},{"field":"fit.r2","quote":"5 –0.3013 0.2230 0.9545 0.1577 1.0361 0.2172 0.45 0.79 0.78","locator":"Table 3, AGBTotal, columns R2 / Adj-R2"}],"check":[{"inputs":{"D":8,"CD":3},"expected":16.807,"origin":"computed","note":"computed from the published form (coefficients as printed, no correction factor)"},{"inputs":{"D":15,"CD":4.5},"expected":46.614,"origin":"computed","note":"computed from the published form (coefficients as printed, no correction factor)"},{"inputs":{"D":25,"CD":6},"expected":102.26,"origin":"computed","note":"computed from the published form (coefficients as printed, no correction factor)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Total aboveground dry biomass (stem + branches + foliage summed). In the paper D is DBH (cm), DSH30 is stem diameter at 30 cm (mapped to D30), CW is crown width (mapped to CD, m), rho is basic wood density (g/cm3). R2 shown is the printed R2 (Adj-R2 is within 0.01). No back-transformation correction factor is printed, so none is applied. The paper prints the mean D (12.61 cm) and a D range width of 29 cm but no min or max, so no DBH range is stored. RMSE printed in Table 3 is on the log scale. n = 140 is the full sample; Methods (p. 3) say 30% was held out for validation, so the fitted n may be ~98."},{"id":"amanuel-2024-total-m7","source":"amanuel-2024","name":"Acacia-Commiphora total AGB, M7 (rho D2 H, crown width)","output":{"quantity":"agb"},"expression":"exp(-0.4699 + 0.5410 * ln(rho * D^2 * H) + 0.5932 * ln(CD))","published":{"expression":"exp(-0.4699 + 0.5410 * ln(rho * D^2 * H) + 0.5932 * ln(CW))","units":{"CW":"m","D":"cm","H":"m","rho":"g/cm3"},"variables":{"CW":"CD"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Eleven woody species of the Acacia-Commiphora biome (mixed)","group":"broadleaf"},"region":{"scope":"site","countries":["ET"],"place":"Bena-Tsemay district, southern Ethiopia","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":140,"r2":0.83,"method":"ln-ln multiple linear regression (SAS); no correction factor stated"},"evidence":[{"field":"expression","quote":"7a –0.4699 0.1987 0.5410 0.0601 0.5932 0.2019 0.41b 0.83b 0.82b","locator":"Table 3, AGBTotal rows, p. 6; model form in Table 1, p. 4"},{"field":"model form","quote":"AGBest. = exp {α + β1Ln (ρ.D2.H) + β2Ln (CW)}","locator":"Table 1, p. 4"},{"field":"fit.n_trees","quote":"The biomass of the 140 individual trees was considered for biomass model development.","locator":"Methods, Biomass measurement, p. 3"},{"field":"fit.r2","quote":"7a –0.4699 0.1987 0.5410 0.0601 0.5932 0.2019 0.41b 0.83b 0.82b","locator":"Table 3, AGBTotal, columns R2 / Adj-R2"}],"check":[{"inputs":{"D":8,"H":4,"rho":0.7,"CD":3},"expected":19.861,"origin":"computed","note":"computed from the published form (coefficients as printed, no correction factor)"},{"inputs":{"D":15,"H":6,"rho":0.7,"CD":4.5},"expected":62.104,"origin":"computed","note":"computed from the published form (coefficients as printed, no correction factor)"},{"inputs":{"D":25,"H":8,"rho":0.7,"CD":6},"expected":149.58,"origin":"computed","note":"computed from the published form (coefficients as printed, no correction factor)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Total aboveground dry biomass (stem + branches + foliage summed). In the paper D is DBH (cm), DSH30 is stem diameter at 30 cm (mapped to D30), CW is crown width (mapped to CD, m), rho is basic wood density (g/cm3). R2 shown is the printed R2 (Adj-R2 is within 0.01). No back-transformation correction factor is printed, so none is applied. The paper prints the mean D (12.61 cm) and a D range width of 29 cm but no min or max, so no DBH range is stored. RMSE printed in Table 3 is on the log scale. n = 140 is the full sample; Methods (p. 3) say 30% was held out for validation, so the fitted n may be ~98."},{"id":"amanuel-2024-total-m8","source":"amanuel-2024","name":"Acacia-Commiphora total AGB, M8 (rho D2 H, crown width, D30)","output":{"quantity":"agb"},"expression":"exp(-0.6207 + 0.4041 * ln(rho * D^2 * H) + 0.4999 * ln(CD) + 0.4446 * ln(D30))","published":{"expression":"exp(-0.6207 + 0.4041 * ln(rho * D^2 * H) + 0.4999 * ln(CW) + 0.4446 * ln(DSH30))","units":{"CW":"m","D":"cm","DSH30":"cm","H":"m","rho":"g/cm3"},"variables":{"CW":"CD","DSH30":"D30"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Eleven woody species of the Acacia-Commiphora biome (mixed)","group":"broadleaf"},"region":{"scope":"site","countries":["ET"],"place":"Bena-Tsemay district, southern Ethiopia","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":140,"r2":0.83,"method":"ln-ln multiple linear regression (SAS); no correction factor stated"},"evidence":[{"field":"expression","quote":"8a –0.6207 0.2108 0.4041 0.0911 0.4999 0.2052 0.4446 0.2240 0.40b 0.83b 0.83b","locator":"Table 3, AGBTotal rows, p. 6; model form in Table 1, p. 4"},{"field":"model form","quote":"AGBest. = exp {α + β1Ln (ρ.D2.H) + β2Ln (CW) + β3Ln (DSH30)}","locator":"Table 1, p. 4"},{"field":"fit.n_trees","quote":"The biomass of the 140 individual trees was considered for biomass model development.","locator":"Methods, Biomass measurement, p. 3"},{"field":"fit.r2","quote":"8a –0.6207 0.2108 0.4041 0.0911 0.4999 0.2052 0.4446 0.2240 0.40b 0.83b 0.83b","locator":"Table 3, AGBTotal, columns R2 / Adj-R2"}],"check":[{"inputs":{"D":8,"H":4,"rho":0.7,"CD":3,"D30":9},"expected":20.127,"origin":"computed","note":"computed from the published form (coefficients as printed, no correction factor)"},{"inputs":{"D":15,"H":6,"rho":0.7,"CD":4.5,"D30":16},"expected":62.33,"origin":"computed","note":"computed from the published form (coefficients as printed, no correction factor)"},{"inputs":{"D":25,"H":8,"rho":0.7,"CD":6,"D30":26},"expected":151.6,"origin":"computed","note":"computed from the published form (coefficients as printed, no correction factor)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Total aboveground dry biomass (stem + branches + foliage summed). In the paper D is DBH (cm), DSH30 is stem diameter at 30 cm (mapped to D30), CW is crown width (mapped to CD, m), rho is basic wood density (g/cm3). R2 shown is the printed R2 (Adj-R2 is within 0.01). No back-transformation correction factor is printed, so none is applied. The paper prints the mean D (12.61 cm) and a D range width of 29 cm but no min or max, so no DBH range is stored. RMSE printed in Table 3 is on the log scale. n = 140 is the full sample; Methods (p. 3) say 30% was held out for validation, so the fitted n may be ~98. The abstract and Results text say DSH10; Table 1 and the printed equations use DSH30, used here."},{"id":"ambomo-tsanga-2026-tdwb-d","source":"ambomo-tsanga-2026","name":"Pruned Faidherbia albida total wood mass from DBH (Eq. 3.7)","output":{"quantity":"agb","excludes":["foliage"]},"expression":"1.06 * exp(-0.901 + 1.978 * ln(D))","published":{"expression":"1.06 * exp(-0.901 + 1.978 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Faidherbia albida","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"site","countries":["CM"],"place":"Gané and Sirlawé villages, Mayo-Danay, Far North region, Cameroon","biomes":["tropical","dryland"]},"stand":"agroforestry","fit":{"n_trees":18,"h_min_m":9,"h_max_m":14,"cf":1.06,"method":"log-log regression (OLS)"},"evidence":[{"field":"expression","quote":"Eq 3.7 ln(TDWb) = -0.901 + 1.978 * ln(D)","locator":"Table II, p. 10"},{"field":"fit.cf","quote":"Bias correction coefficient to transform predictions back to the original scale while accounting for the variance of the residuals.","locator":"Table II footnote 1, p. 10"},{"field":"fit.n_trees","quote":"the sample of 18 Faidherbia albida trees","locator":"Table I caption, p. 9"}],"check":[{"inputs":{"D":50},"expected":987.573,"origin":"computed","note":"computed from the Table II coefficients with the printed CF 1.06"},{"inputs":{"D":90},"expected":3158.6261,"origin":"computed","note":"computed from the Table II coefficients with the printed CF 1.06"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Response is TDWb, total above-ground wood dry mass (pruned wood plus post-pruning wood of trunk and branch stumps); foliage was not weighed, so it is excluded. Pruned-wood mass uses a 0.439 dry-matter fraction and post-pruning mass uses volume x 0.411 g cm-3 mean basic density, so it is a semi-destructive estimate. The back-transform applies the printed CF (1.06, given to two decimals). Natural log assumed from the paper's ln notation. DBH range not stored: Table I gives 31.8 to 110.4 cm but the text gives 28 to 183 cm for the 18 trees. Crown-area (Ca) equations from the same table are not added because Ca is not a canonical variable (computed as an ellipse area from two crown diameters)."},{"id":"ambomo-tsanga-2026-tdwb-d2h","source":"ambomo-tsanga-2026","name":"Pruned Faidherbia albida total wood mass from D²H (Eq. 3.5)","output":{"quantity":"agb","excludes":["foliage"]},"expression":"1.06 * exp(-2.050 + 0.872 * ln(D^2 * H))","published":{"expression":"1.06 * exp(-2.050 + 0.872 * ln(D^2 * H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Faidherbia albida","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"site","countries":["CM"],"place":"Gané and Sirlawé villages, Mayo-Danay, Far North region, Cameroon","biomes":["tropical","dryland"]},"stand":"agroforestry","fit":{"n_trees":18,"h_min_m":9,"h_max_m":14,"cf":1.06,"method":"log-log regression (OLS)"},"evidence":[{"field":"expression","quote":"Eq 3.5 ln(TDWb) = -2.050 + 0.872 * ln(D²H)","locator":"Table II, p. 10"},{"field":"fit.cf","quote":"Bias correction coefficient to transform predictions back to the original scale while accounting for the variance of the residuals.","locator":"Table II footnote 1, p. 10"},{"field":"fit.n_trees","quote":"the sample of 18 Faidherbia albida trees","locator":"Table I caption, p. 9"}],"check":[{"inputs":{"D":50,"H":10},"expected":933.2669,"origin":"computed","note":"computed from the Table II coefficients with the printed CF 1.06"},{"inputs":{"D":90,"H":13},"expected":3270.0901,"origin":"computed","note":"computed from the Table II coefficients with the printed CF 1.06"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Response is TDWb, total above-ground wood dry mass (pruned wood plus post-pruning wood of trunk and branch stumps); foliage was not weighed, so it is excluded. Pruned-wood mass uses a 0.439 dry-matter fraction and post-pruning mass uses volume x 0.411 g cm-3 mean basic density, so it is a semi-destructive estimate. The back-transform applies the printed CF (1.06, given to two decimals). Natural log assumed from the paper's ln notation. DBH range not stored: Table I gives 31.8 to 110.4 cm but the text gives 28 to 183 cm for the 18 trees. Crown-area (Ca) equations from the same table are not added because Ca is not a canonical variable (computed as an ellipse area from two crown diameters)."},{"id":"ambomo-tsanga-2026-tdwb-dh","source":"ambomo-tsanga-2026","name":"Pruned Faidherbia albida total wood mass from D and H (Eq. 3.6)","output":{"quantity":"agb","excludes":["foliage"]},"expression":"1.06 * exp(-1.945 + 1.774 * ln(D) + 0.779 * ln(H))","published":{"expression":"1.06 * exp(-1.945 + 1.774 * ln(D) + 0.779 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Faidherbia albida","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"site","countries":["CM"],"place":"Gané and Sirlawé villages, Mayo-Danay, Far North region, Cameroon","biomes":["tropical","dryland"]},"stand":"agroforestry","fit":{"n_trees":18,"h_min_m":9,"h_max_m":14,"cf":1.06,"method":"log-log regression (OLS)"},"evidence":[{"field":"expression","quote":"Eq 3.6 ln(TDWb) = -1.945 + 1.774 * ln(D) + 0.779 * ln(H)","locator":"Table II, p. 10"},{"field":"fit.cf","quote":"Bias correction coefficient to transform predictions back to the original scale while accounting for the variance of the residuals.","locator":"Table II footnote 1, p. 10"},{"field":"fit.n_trees","quote":"the sample of 18 Faidherbia albida trees","locator":"Table I caption, p. 9"}],"check":[{"inputs":{"D":50,"H":10},"expected":940.9702,"origin":"computed","note":"computed from the Table II coefficients with the printed CF 1.06"},{"inputs":{"D":90,"H":13},"expected":3274.8483,"origin":"computed","note":"computed from the Table II coefficients with the printed CF 1.06"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Response is TDWb, total above-ground wood dry mass (pruned wood plus post-pruning wood of trunk and branch stumps); foliage was not weighed, so it is excluded. Pruned-wood mass uses a 0.439 dry-matter fraction and post-pruning mass uses volume x 0.411 g cm-3 mean basic density, so it is a semi-destructive estimate. The back-transform applies the printed CF (1.06, given to two decimals). Natural log assumed from the paper's ln notation. DBH range not stored: Table I gives 31.8 to 110.4 cm but the text gives 28 to 183 cm for the 18 trees. Crown-area (Ca) equations from the same table are not added because Ca is not a canonical variable (computed as an ellipse area from two crown diameters)."},{"id":"baia-2025-both-michaelis-menten","source":"baia-2025","name":"Height from DBH, Michaelis-Menten model, both forests pooled","output":{"quantity":"height"},"expression":"42.1399 * D / (21.77561 + D)","published":{"expression":"42.1399 * DBH / (21.77561 + DBH)","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m"},"taxon":{"level":"mixed","name":"Mixed Amazonian forest trees (367 species in terra-firme, 65 in várzea)","group":"mixed"},"region":{"scope":"site","countries":["BR"],"place":"Terra-firme (NFA) and várzea (Mazagão) forests, Amapá, Brazil","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":1962,"dbh_min_cm":1,"dbh_max_cm":139.5,"h_min_m":1.2,"h_max_m":51.9,"r2":0.75,"method":"nonlinear least squares height-diameter model; R2 is the adjusted pseudo R2"},"evidence":[{"field":"expression","quote":"H = a × DBH/(b + DBH) + ε ; Table 2: Michaelis-Menten a 42.1399 0.764 4.935 0.75 11,835.8 | b 21.77561 0.849","locator":"Table 1 (form) and Table 2, Both forests block"},{"field":"fit.n_trees","quote":"we measured the diameter and height of 1,962 trees in both forests","locator":"Abstract"},{"field":"fit.dbh_min_cm","quote":"In the terra-firme sites, trees ranged from 1 to 109.1 cm DBH and 1.2 to 51.9 m in total height. In várzea sites, trees ranged from 5 to 139.5 cm DBH and 2.3 to 38.8 m in total height.","locator":"Results, first paragraph"},{"field":"fit.r2","quote":"Adj. pseudo R2 0.75","locator":"Table 2, Both forests block"}],"check":[{"inputs":{"D":10},"expected":13.262,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":30},"expected":24.417,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":60},"expected":30.919,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Predicts total tree height from DBH. RSE printed in Table 2 is 4.935 (height scale, m), so fit.rse is not stored. Ranges are those of the trees sampled at the site(s); the pooled block uses the min and max of the two forests' printed ranges. No correction factor is applied; the paper reports local models deviate 0.1% from measured heights."},{"id":"baia-2025-both-quadratic","source":"baia-2025","name":"Height from DBH, Quadratic model, both forests pooled","output":{"quantity":"height"},"expression":"exp(0.48064 + 1.16793 * ln(D) - 0.10905 * ln(D)^2)","published":{"expression":"exp(0.48064 + 1.16793 * ln(DBH) - 0.10905 * ln(DBH)^2)","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m"},"taxon":{"level":"mixed","name":"Mixed Amazonian forest trees (367 species in terra-firme, 65 in várzea)","group":"mixed"},"region":{"scope":"site","countries":["BR"],"place":"Terra-firme (NFA) and várzea (Mazagão) forests, Amapá, Brazil","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":1962,"dbh_min_cm":1,"dbh_max_cm":139.5,"h_min_m":1.2,"h_max_m":51.9,"r2":0.75,"method":"nonlinear least squares height-diameter model; R2 is the adjusted pseudo R2"},"evidence":[{"field":"expression","quote":"H = exp(a + b × ln(DBH) + c × ln(DBH)²) + ε ; Table 2: Quadratic a 0.48064 0.092 4.937 0.75 11,838.5 | b 1.16793 0.059 | c −0.10905 0.009","locator":"Table 1 (form) and Table 2, Both forests block"},{"field":"fit.n_trees","quote":"we measured the diameter and height of 1,962 trees in both forests","locator":"Abstract"},{"field":"fit.dbh_min_cm","quote":"In the terra-firme sites, trees ranged from 1 to 109.1 cm DBH and 1.2 to 51.9 m in total height. In várzea sites, trees ranged from 5 to 139.5 cm DBH and 2.3 to 38.8 m in total height.","locator":"Results, first paragraph"},{"field":"fit.r2","quote":"Adj. pseudo R2 0.75","locator":"Table 2, Both forests block"}],"check":[{"inputs":{"D":10},"expected":13.353,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":30},"expected":24.325,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":60},"expected":31.015,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Predicts total tree height from DBH. The quadratic form is read as a + b ln(DBH) + c (ln DBH)^2 inside exp(); Table 1 prints ln(DBH) with a superscript 2, and ln(DBH^2) would not be separable from the b term. RSE printed in Table 2 is 4.937 (height scale, m), so fit.rse is not stored. Ranges are those of the trees sampled at the site(s); the pooled block uses the min and max of the two forests' printed ranges. No correction factor is applied; the paper reports local models deviate 0.1% from measured heights."},{"id":"baia-2025-both-weibull","source":"baia-2025","name":"Height from DBH, Weibull model, both forests pooled","output":{"quantity":"height"},"expression":"35.07114 * (1 - exp(-0.0661 * D^0.85189))","published":{"expression":"35.07114 * (1 - exp(-0.0661 * DBH^0.85189))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m"},"taxon":{"level":"mixed","name":"Mixed Amazonian forest trees (367 species in terra-firme, 65 in várzea)","group":"mixed"},"region":{"scope":"site","countries":["BR"],"place":"Terra-firme (NFA) and várzea (Mazagão) forests, Amapá, Brazil","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":1962,"dbh_min_cm":1,"dbh_max_cm":139.5,"h_min_m":1.2,"h_max_m":51.9,"r2":0.75,"method":"nonlinear least squares height-diameter model; R2 is the adjusted pseudo R2"},"evidence":[{"field":"expression","quote":"H = a × (1 − exp(−b × DBHc)) + ε ; Table 2: Weibull a 35.07114 1.032 4.934 0.75 11,836.6 | b 0.0661 0.003 | c 0.85189 0.028","locator":"Table 1 (form) and Table 2, Both forests block"},{"field":"fit.n_trees","quote":"we measured the diameter and height of 1,962 trees in both forests","locator":"Abstract"},{"field":"fit.dbh_min_cm","quote":"In the terra-firme sites, trees ranged from 1 to 109.1 cm DBH and 1.2 to 51.9 m in total height. In várzea sites, trees ranged from 5 to 139.5 cm DBH and 2.3 to 38.8 m in total height.","locator":"Results, first paragraph"},{"field":"fit.r2","quote":"Adj. pseudo R2 0.75","locator":"Table 2, Both forests block"}],"check":[{"inputs":{"D":10},"expected":13.151,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":30},"expected":24.489,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":60},"expected":31.037,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Predicts total tree height from DBH. RSE printed in Table 2 is 4.934 (height scale, m), so fit.rse is not stored. Ranges are those of the trees sampled at the site(s); the pooled block uses the min and max of the two forests' printed ranges. No correction factor is applied; the paper reports local models deviate 0.1% from measured heights."},{"id":"baia-2025-terra-firme-michaelis-menten","source":"baia-2025","name":"Height from DBH, Michaelis-Menten model, terra-firme","output":{"quantity":"height"},"expression":"51.09644 * D / (25.11112 + D)","published":{"expression":"51.09644 * DBH / (25.11112 + DBH)","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m"},"taxon":{"level":"mixed","name":"Mixed Amazonian forest trees (367 species in terra-firme, 65 in várzea)","group":"mixed"},"region":{"scope":"site","countries":["BR"],"place":"Non-flooded terra-firme forest, National Forest of Amapá (NFA), Brazil","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":1156,"dbh_min_cm":1,"dbh_max_cm":109.1,"h_min_m":1.2,"h_max_m":51.9,"r2":0.87,"method":"nonlinear least squares height-diameter model; R2 is the adjusted pseudo R2"},"evidence":[{"field":"expression","quote":"H = a × DBH/(b + DBH) + ε ; Table 2: Michaelis-Menten a 51.09644 0.988 4.021 0.87 6,501.9 | b 25.11112 0.99","locator":"Table 1 (form) and Table 2, Terra-firme block"},{"field":"fit.n_trees","quote":"We sampled 1,156 trees of 367 species ... in the terra-firme sites, and 806 trees of 65 species ... in várzea","locator":"Abstract"},{"field":"fit.dbh_min_cm","quote":"In the terra-firme sites, trees ranged from 1 to 109.1 cm DBH and 1.2 to 51.9 m in total height. In várzea sites, trees ranged from 5 to 139.5 cm DBH and 2.3 to 38.8 m in total height.","locator":"Results, first paragraph"},{"field":"fit.r2","quote":"Adj. pseudo R2 0.87","locator":"Table 2, Terra-firme block"}],"check":[{"inputs":{"D":10},"expected":14.553,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":30},"expected":27.815,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":60},"expected":36.021,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Predicts total tree height from DBH. RSE printed in Table 2 is 4.021 (height scale, m), so fit.rse is not stored. Ranges are those printed for the trees sampled in this forest type. No correction factor is applied; the paper reports local models deviate 0.1% from measured heights."},{"id":"baia-2025-terra-firme-quadratic","source":"baia-2025","name":"Height from DBH, Quadratic model, terra-firme","output":{"quantity":"height"},"expression":"exp(0.63296 + 1.11213 * ln(D) - 0.09504 * ln(D)^2)","published":{"expression":"exp(0.63296 + 1.11213 * ln(DBH) - 0.09504 * ln(DBH)^2)","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m"},"taxon":{"level":"mixed","name":"Mixed Amazonian forest trees (367 species in terra-firme, 65 in várzea)","group":"mixed"},"region":{"scope":"site","countries":["BR"],"place":"Non-flooded terra-firme forest, National Forest of Amapá (NFA), Brazil","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":1156,"dbh_min_cm":1,"dbh_max_cm":109.1,"h_min_m":1.2,"h_max_m":51.9,"r2":0.87,"method":"nonlinear least squares height-diameter model; R2 is the adjusted pseudo R2"},"evidence":[{"field":"expression","quote":"H = exp(a + b × ln(DBH) + c × ln(DBH)²) + ε ; Table 2: Quadratic a 0.63296 0.081 4.018 0.87 6,501.2 | b 1.11213 0.052 | c −0.09504 0.008","locator":"Table 1 (form) and Table 2, Terra-firme block"},{"field":"fit.n_trees","quote":"We sampled 1,156 trees of 367 species ... in the terra-firme sites, and 806 trees of 65 species ... in várzea","locator":"Abstract"},{"field":"fit.dbh_min_cm","quote":"In the terra-firme sites, trees ranged from 1 to 109.1 cm DBH and 1.2 to 51.9 m in total height. In várzea sites, trees ranged from 5 to 139.5 cm DBH and 2.3 to 38.8 m in total height.","locator":"Results, first paragraph"},{"field":"fit.r2","quote":"Adj. pseudo R2 0.87","locator":"Table 2, Terra-firme block"}],"check":[{"inputs":{"D":10},"expected":14.729,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":30},"expected":27.553,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":60},"expected":36.35,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Predicts total tree height from DBH. The quadratic form is read as a + b ln(DBH) + c (ln DBH)^2 inside exp(); Table 1 prints ln(DBH) with a superscript 2, and ln(DBH^2) would not be separable from the b term. RSE printed in Table 2 is 4.018 (height scale, m), so fit.rse is not stored. Ranges are those printed for the trees sampled in this forest type. No correction factor is applied; the paper reports local models deviate 0.1% from measured heights."},{"id":"baia-2025-varzea-michaelis-menten","source":"baia-2025","name":"Height from DBH, Michaelis-Menten model, várzea","output":{"quantity":"height"},"expression":"33.09269 * D / (18.42734 + D)","published":{"expression":"33.09269 * DBH / (18.42734 + DBH)","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m"},"taxon":{"level":"mixed","name":"Mixed Amazonian forest trees (367 species in terra-firme, 65 in várzea)","group":"mixed"},"region":{"scope":"site","countries":["BR"],"place":"Seasonally flooded várzea forest, Mazagão, Amapá, Brazil","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":806,"dbh_min_cm":5,"dbh_max_cm":139.5,"h_min_m":2.3,"h_max_m":38.8,"r2":0.65,"method":"nonlinear least squares height-diameter model; R2 is the adjusted pseudo R2"},"evidence":[{"field":"expression","quote":"H = a × DBH/(b + DBH) + ε ; Table 2: Michaelis-Menten a 33.09269 0.811 4.164 0.65 4,590.9 | b 18.42734 1.032","locator":"Table 1 (form) and Table 2, Várzea block"},{"field":"fit.n_trees","quote":"We sampled 1,156 trees of 367 species ... in the terra-firme sites, and 806 trees of 65 species ... in várzea","locator":"Abstract"},{"field":"fit.dbh_min_cm","quote":"In the terra-firme sites, trees ranged from 1 to 109.1 cm DBH and 1.2 to 51.9 m in total height. In várzea sites, trees ranged from 5 to 139.5 cm DBH and 2.3 to 38.8 m in total height.","locator":"Results, first paragraph"},{"field":"fit.r2","quote":"Adj. pseudo R2 0.65","locator":"Table 2, Várzea block"}],"check":[{"inputs":{"D":10},"expected":11.641,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":30},"expected":20.5,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":60},"expected":25.317,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Predicts total tree height from DBH. RSE printed in Table 2 is 4.164 (height scale, m), so fit.rse is not stored. Ranges are those printed for the trees sampled in this forest type. No correction factor is applied; the paper reports local models deviate 0.1% from measured heights."},{"id":"baia-2025-varzea-quadratic","source":"baia-2025","name":"Height from DBH, Quadratic model, várzea","output":{"quantity":"height"},"expression":"exp(0.51504 + 1.07489 * ln(D) - 0.10005 * ln(D)^2)","published":{"expression":"exp(0.51504 + 1.07489 * ln(DBH) - 0.10005 * ln(DBH)^2)","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m"},"taxon":{"level":"mixed","name":"Mixed Amazonian forest trees (367 species in terra-firme, 65 in várzea)","group":"mixed"},"region":{"scope":"site","countries":["BR"],"place":"Seasonally flooded várzea forest, Mazagão, Amapá, Brazil","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":806,"dbh_min_cm":5,"dbh_max_cm":139.5,"h_min_m":2.3,"h_max_m":38.8,"r2":0.65,"method":"nonlinear least squares height-diameter model; R2 is the adjusted pseudo R2"},"evidence":[{"field":"expression","quote":"H = exp(a + b × ln(DBH) + c × ln(DBH)²) + ε ; Table 2: Quadratic a 0.51504 0.158 4.161 0.65 4,590.7 | b 1.07489 0.1 | c −0.10005 0.015","locator":"Table 1 (form) and Table 2, Várzea block"},{"field":"fit.n_trees","quote":"We sampled 1,156 trees of 367 species ... in the terra-firme sites, and 806 trees of 65 species ... in várzea","locator":"Abstract"},{"field":"fit.dbh_min_cm","quote":"In the terra-firme sites, trees ranged from 1 to 109.1 cm DBH and 1.2 to 51.9 m in total height. In várzea sites, trees ranged from 5 to 139.5 cm DBH and 2.3 to 38.8 m in total height.","locator":"Results, first paragraph"},{"field":"fit.r2","quote":"Adj. pseudo R2 0.65","locator":"Table 2, Várzea block"}],"check":[{"inputs":{"D":10},"expected":11.7,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":30},"expected":20.36,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":60},"expected":25.503,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Predicts total tree height from DBH. The quadratic form is read as a + b ln(DBH) + c (ln DBH)^2 inside exp(); Table 1 prints ln(DBH) with a superscript 2, and ln(DBH^2) would not be separable from the b term. RSE printed in Table 2 is 4.161 (height scale, m), so fit.rse is not stored. Ranges are those printed for the trees sampled in this forest type. No correction factor is applied; the paper reports local models deviate 0.1% from measured heights."},{"id":"barbosa-2019-logistic-power","source":"barbosa-2019","name":"Height from DBH, logistic power (Table 3)","output":{"quantity":"height"},"expression":"43.6264 / (1 + (D / 29.7079)^(-1.0709))","published":{"expression":"43.6264 / (1 + (X / 29.7079)^(-1.0709))","units":{"X":"cm"},"variables":{"X":"D"},"output_unit":"m"},"taxon":{"level":"mixed","name":"Mixed tree species of ombrophilous/seasonal forest ecotone (65 fallen trees)","group":"mixed"},"region":{"scope":"site","countries":["BR"],"place":"Maracá Ecological Station (PPBio grid), Roraima, northern Brazilian Amazonia","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":65,"dbh_min_cm":10,"h_min_m":11.7,"h_max_m":37.7,"r2":0.7152,"method":"Nonlinear/linear regression (CurveExpert/R) on 65 directly measured fallen trees; r2 is the adjusted R² printed in Table 3; Syx = 3.372 m"},"evidence":[{"field":"expression","quote":"Logistic Power Y = β0 / 1 + (X / β1) β2 43.6264 29.7079 -1.0709 3.372 0.7152 159.16","locator":"Table 3"},{"field":"fit.n_trees","quote":"A total of 65 individual trees were sampled","locator":"Material and Methods, Sampling design"},{"field":"fit.dbh_min_cm","quote":"with stem diameter ≥10 cm","locator":"Material and Methods, Sampling design"},{"field":"fit.h_min_m","quote":"(mean ± CI 0.05 = 24.1 ± 1.5 m; range = 11.7 - 37.7 m)","locator":"Results, paragraph on Figure 3"},{"field":"fit.r2","quote":"R² adj","locator":"Table 3 column header"}],"check":[{"inputs":{"D":20},"expected":17.26,"origin":"computed","note":"hand-computed from the published coefficients in Table 3"},{"inputs":{"D":40},"expected":25.258,"origin":"computed","note":"hand-computed from the published coefficients in Table 3"},{"inputs":{"D":70},"expected":31.176,"origin":"computed","note":"hand-computed from the published coefficients in Table 3"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Y = β0 / (1 + (X/β1)^β2) with β2 negative as printed; form read from the typeset Table 2/3 layout (stacked fraction, exponent on (X/β1)) and sanity-checked against Table S1 trees. Stem diameter was measured at 1.30 m, or 0.5 m above buttresses, on recently fallen trees (live or dead). The paper reports no maximum DBH in the text (see Table S1), so dbh_max is left out. Table 3 ranks five models; this is one of the four with fully legible coefficients (the Modified Hoerl row, with b1 = 0.000035, was not used)."},{"id":"barbosa-2019-michaelis-menten","source":"barbosa-2019","name":"Height from DBH, Michaelis-Menten (Table 3, best fit)","output":{"quantity":"height"},"expression":"45.8528 * D / (32.833 + D)","published":{"expression":"45.8528 * X / (32.833 + X)","units":{"X":"cm"},"variables":{"X":"D"},"output_unit":"m"},"taxon":{"level":"mixed","name":"Mixed tree species of ombrophilous/seasonal forest ecotone (65 fallen trees)","group":"mixed"},"region":{"scope":"site","countries":["BR"],"place":"Maracá Ecological Station (PPBio grid), Roraima, northern Brazilian Amazonia","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":65,"dbh_min_cm":10,"h_min_m":11.7,"h_max_m":37.7,"r2":0.7149,"method":"Nonlinear/linear regression (CurveExpert/R) on 65 directly measured fallen trees; r2 is the adjusted R² printed in Table 3; Syx = 3.347 m"},"evidence":[{"field":"expression","quote":"Michaelis-Menten Y = β0 × X / β1 + X 45.8528 32.8330 - 3.347 0.7149 157.09","locator":"Table 3"},{"field":"fit.n_trees","quote":"A total of 65 individual trees were sampled","locator":"Material and Methods, Sampling design"},{"field":"fit.dbh_min_cm","quote":"with stem diameter ≥10 cm","locator":"Material and Methods, Sampling design"},{"field":"fit.h_min_m","quote":"(mean ± CI 0.05 = 24.1 ± 1.5 m; range = 11.7 - 37.7 m)","locator":"Results, paragraph on Figure 3"},{"field":"fit.r2","quote":"R² adj","locator":"Table 3 column header"}],"check":[{"inputs":{"D":20},"expected":17.358,"origin":"computed","note":"hand-computed from the published coefficients in Table 3"},{"inputs":{"D":40},"expected":25.182,"origin":"computed","note":"hand-computed from the published coefficients in Table 3"},{"inputs":{"D":70},"expected":31.213,"origin":"computed","note":"hand-computed from the published coefficients in Table 3"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Best model by the authors' ranking (lowest Syx, highest adjusted R²). Y = β0·X/(β1+X), with the printed layout a fraction. Stem diameter was measured at 1.30 m, or 0.5 m above buttresses, on recently fallen trees (live or dead). The paper reports no maximum DBH in the text (see Table S1), so dbh_max is left out. Table 3 ranks five models; this is one of the four with fully legible coefficients (the Modified Hoerl row, with b1 = 0.000035, was not used)."},{"id":"barbosa-2019-modified-exponential","source":"barbosa-2019","name":"Height from DBH, modified exponential (Table 3)","output":{"quantity":"height"},"expression":"38.776 * exp(-16.4933 / D)","published":{"expression":"38.776 * exp(-16.4933 / X)","units":{"X":"cm"},"variables":{"X":"D"},"output_unit":"m"},"taxon":{"level":"mixed","name":"Mixed tree species of ombrophilous/seasonal forest ecotone (65 fallen trees)","group":"mixed"},"region":{"scope":"site","countries":["BR"],"place":"Maracá Ecological Station (PPBio grid), Roraima, northern Brazilian Amazonia","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":65,"dbh_min_cm":10,"h_min_m":11.7,"h_max_m":37.7,"r2":0.7071,"method":"Nonlinear/linear regression (CurveExpert/R) on 65 directly measured fallen trees; r2 is the adjusted R² printed in Table 3; Syx = 3.393 m"},"evidence":[{"field":"expression","quote":"Modified Exponential Y = β0 × exp β1 X 38.7760 -16.4933 - 3.393 0.7071 158.85","locator":"Table 3"},{"field":"fit.n_trees","quote":"A total of 65 individual trees were sampled","locator":"Material and Methods, Sampling design"},{"field":"fit.dbh_min_cm","quote":"with stem diameter ≥10 cm","locator":"Material and Methods, Sampling design"},{"field":"fit.h_min_m","quote":"(mean ± CI 0.05 = 24.1 ± 1.5 m; range = 11.7 - 37.7 m)","locator":"Results, paragraph on Figure 3"},{"field":"fit.r2","quote":"R² adj","locator":"Table 3 column header"}],"check":[{"inputs":{"D":20},"expected":16.999,"origin":"computed","note":"hand-computed from the published coefficients in Table 3"},{"inputs":{"D":40},"expected":25.674,"origin":"computed","note":"hand-computed from the published coefficients in Table 3"},{"inputs":{"D":70},"expected":30.636,"origin":"computed","note":"hand-computed from the published coefficients in Table 3"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Y = β0·exp(β1/X), with β1 negative as printed; form read from the typeset layout and sanity-checked against Table S1 trees. Stem diameter was measured at 1.30 m, or 0.5 m above buttresses, on recently fallen trees (live or dead). The paper reports no maximum DBH in the text (see Table S1), so dbh_max is left out. Table 3 ranks five models; this is one of the four with fully legible coefficients (the Modified Hoerl row, with b1 = 0.000035, was not used)."},{"id":"barbosa-2019-natural-log","source":"barbosa-2019","name":"Height from DBH, natural-log model (Table 3)","output":{"quantity":"height"},"expression":"-15.3629 + 10.9623 * ln(D)","published":{"expression":"-15.3629 + 10.9623 * ln(X)","units":{"X":"cm"},"variables":{"X":"D"},"output_unit":"m"},"taxon":{"level":"mixed","name":"Mixed tree species of ombrophilous/seasonal forest ecotone (65 fallen trees)","group":"mixed"},"region":{"scope":"site","countries":["BR"],"place":"Maracá Ecological Station (PPBio grid), Roraima, northern Brazilian Amazonia","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":65,"dbh_min_cm":10,"h_min_m":11.7,"h_max_m":37.7,"r2":0.7144,"method":"Nonlinear/linear regression (CurveExpert/R) on 65 directly measured fallen trees; r2 is the adjusted R² printed in Table 3; Syx = 3.35 m"},"evidence":[{"field":"expression","quote":"Natural Logarithm Y = β0 + β1 × ln X -15.3629 10.9623 - 3.350 0.7144 157.21","locator":"Table 3"},{"field":"fit.n_trees","quote":"A total of 65 individual trees were sampled","locator":"Material and Methods, Sampling design"},{"field":"fit.dbh_min_cm","quote":"with stem diameter ≥10 cm","locator":"Material and Methods, Sampling design"},{"field":"fit.h_min_m","quote":"(mean ± CI 0.05 = 24.1 ± 1.5 m; range = 11.7 - 37.7 m)","locator":"Results, paragraph on Figure 3"},{"field":"fit.r2","quote":"R² adj","locator":"Table 3 column header"}],"check":[{"inputs":{"D":20},"expected":17.477,"origin":"computed","note":"hand-computed from the published coefficients in Table 3"},{"inputs":{"D":40},"expected":25.076,"origin":"computed","note":"hand-computed from the published coefficients in Table 3"},{"inputs":{"D":70},"expected":31.21,"origin":"computed","note":"hand-computed from the published coefficients in Table 3"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Second-ranked model. H = β0 + β1·ln(D); natural log. Stem diameter was measured at 1.30 m, or 0.5 m above buttresses, on recently fallen trees (live or dead). The paper reports no maximum DBH in the text (see Table S1), so dbh_max is left out. Table 3 ranks five models; this is one of the four with fully legible coefficients (the Modified Hoerl row, with b1 = 0.000035, was not used)."},{"id":"basuki-2009-dipterocarpus-d","source":"basuki-2009","name":"Dipterocarpus spp., DBH only","output":{"quantity":"agb"},"expression":"1.022 * exp(-1.232 + 2.178 * ln(D))","published":{"expression":"1.022 * exp(-1.232 + 2.178 * ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"genus","name":"Dipterocarpus","family":"Dipterocarpaceae","group":"broadleaf"},"region":{"scope":"site","countries":["ID"],"place":"Lowland mixed Dipterocarp forest, East Kalimantan, Indonesia","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":20,"r2":0.989,"rse":0.21,"cf":1.022,"method":"OLS on ln-transformed data, adjusted r2"},"evidence":[{"field":"expression","quote":"Dipterocarpus 20 ln(TAGB) = c + αln(DBH) c −1.232 ... α 2.178 ... 0.989 0.210 18.65 1.022","locator":"Table 1"},{"field":"region","quote":"The data were collected in lowland mixed Dipterocarp forests in East Kalimantan, Indonesia.","locator":"Abstract"},{"field":"published.units","quote":"TAGB; total above-ground biomass based on dry weight (kg/tree), DBH: diameter at breast height (cm)","locator":"Table 1 note"}],"check":[{"inputs":{"D":30},"expected":491.55,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":80},"expected":4162.27,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"ln-ln OLS; the authors back-transform with the correction factor (CF) listed in Table 1, which is applied here. Intercepts are negative in the printed table (checked on the rendered page; text extraction drops the sign). DBH measured at 1.30 m or above buttresses."},{"id":"basuki-2009-mixed-d-rho","source":"basuki-2009","name":"Lowland Dipterocarp forest, mixed species, DBH and wood density","output":{"quantity":"agb"},"expression":"1.047 * exp(-0.744 + 2.188 * ln(D) + 0.832 * ln(rho))","published":{"expression":"1.047 * exp(-0.744 + 2.188 * ln(DBH) + 0.832 * ln(WD))","units":{"DBH":"cm","WD":"g/cm3"},"variables":{"DBH":"D","WD":"rho"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Mixed species of lowland Dipterocarp forest","group":"broadleaf"},"region":{"scope":"site","countries":["ID"],"place":"Lowland mixed Dipterocarp forest, East Kalimantan, Indonesia","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":122,"dbh_min_cm":6,"dbh_max_cm":200,"r2":0.97,"rse":0.303,"cf":1.047,"method":"OLS on ln-transformed data, adjusted r2"},"evidence":[{"field":"expression","quote":"ln(TAGB) = c + αln(DBH) + βln(WD) c −0.744 ... α 2.188 ... β 0.832 ... 0.970 0.303 26.51 1.047","locator":"Table 1"},{"field":"region","quote":"The data were collected in lowland mixed Dipterocarp forests in East Kalimantan, Indonesia.","locator":"Abstract"},{"field":"published.units","quote":"TAGB; total above-ground biomass based on dry weight (kg/tree), DBH: diameter at breast height (cm)","locator":"Table 1 note"}],"check":[{"inputs":{"D":30,"rho":0.6},"expected":554.87,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":80,"rho":0.6},"expected":4744.76,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"ln-ln OLS; the authors back-transform with the correction factor (CF) listed in Table 1, which is applied here. Intercepts are negative in the printed table (checked on the rendered page; text extraction drops the sign). DBH measured at 1.30 m or above buttresses."},{"id":"basuki-2009-mixed-d","source":"basuki-2009","name":"Lowland Dipterocarp forest, mixed species, DBH only","output":{"quantity":"agb"},"expression":"1.058 * exp(-1.201 + 2.196 * ln(D))","published":{"expression":"1.058 * exp(-1.201 + 2.196 * ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Mixed species of lowland Dipterocarp forest","group":"broadleaf"},"region":{"scope":"site","countries":["ID"],"place":"Lowland mixed Dipterocarp forest, East Kalimantan, Indonesia","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":122,"dbh_min_cm":6,"dbh_max_cm":200,"r2":0.963,"rse":0.335,"cf":1.058,"method":"OLS on ln-transformed data, adjusted r2"},"evidence":[{"field":"expression","quote":"Mixed species 122 ln(TAGB) = c + αln(DBH) c −1.201 ... α 2.196 ... 0.963 0.335 30.32 1.058","locator":"Table 1"},{"field":"region","quote":"The data were collected in lowland mixed Dipterocarp forests in East Kalimantan, Indonesia.","locator":"Abstract"},{"field":"published.units","quote":"TAGB; total above-ground biomass based on dry weight (kg/tree), DBH: diameter at breast height (cm)","locator":"Table 1 note"}],"check":[{"inputs":{"D":30},"expected":558.03,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":80},"expected":4809.32,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"ln-ln OLS; the authors back-transform with the correction factor (CF) listed in Table 1, which is applied here. Intercepts are negative in the printed table (checked on the rendered page; text extraction drops the sign). DBH measured at 1.30 m or above buttresses."},{"id":"basuki-2009-shorea-d","source":"basuki-2009","name":"Shorea spp., DBH only","output":{"quantity":"agb"},"expression":"1.034 * exp(-2.193 + 2.371 * ln(D))","published":{"expression":"1.034 * exp(-2.193 + 2.371 * ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"genus","name":"Shorea","family":"Dipterocarpaceae","group":"broadleaf"},"region":{"scope":"site","countries":["ID"],"place":"Lowland mixed Dipterocarp forest, East Kalimantan, Indonesia","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":24,"r2":0.984,"rse":0.2601,"cf":1.034,"method":"OLS on ln-transformed data, adjusted r2"},"evidence":[{"field":"expression","quote":"Shorea 24 ln(TAGB) = c + αln(DBH) c −2.193 ... α 2.371 ... 0.984 0.2601 20.49 1.034","locator":"Table 1"},{"field":"region","quote":"The data were collected in lowland mixed Dipterocarp forests in East Kalimantan, Indonesia.","locator":"Abstract"},{"field":"published.units","quote":"TAGB; total above-ground biomass based on dry weight (kg/tree), DBH: diameter at breast height (cm)","locator":"Table 1 note"}],"check":[{"inputs":{"D":30},"expected":366.75,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":80},"expected":3752.66,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"ln-ln OLS; the authors back-transform with the correction factor (CF) listed in Table 1, which is applied here. Intercepts are negative in the printed table (checked on the rendered page; text extraction drops the sign). DBH measured at 1.30 m or above buttresses."},{"id":"begazo-2018-grevillea","source":"begazo-2018","name":"Total aboveground biomass, Grevillea robusta, dap only","output":{"quantity":"agb"},"expression":"exp(-2.0082 + 2.3293 * ln(D))","published":{"expression":"exp(-2.0082 + 2.3293 * ln(dap))","units":{"dap":"cm"},"variables":{"dap":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Grevillea robusta","family":"Proteaceae","group":"broadleaf"},"region":{"scope":"site","countries":["PE"],"place":"Bosque simulado y Plantación forestal, UNALM, La Molina, Lima (238 m a.s.l.)","biomes":["dryland"]},"stand":"plantation","fit":{"n_trees":15,"dbh_min_cm":2.4,"dbh_max_cm":21,"h_min_m":3.7,"h_max_m":21.4,"r2":0.99,"method":"linearised regression on Ln(B), no back-transform correction stated"},"evidence":[{"field":"expression","quote":"Ln ( BT ) = -2.0082 + 2.3293 × Ln (dap)","locator":"Cuadro 11 / Resumen"},{"field":"fit.n_trees","quote":"se evaluaron 44 individuos en total: 15 individuos de la especie Tecoma stans (L.) Juss. ex Kunth var. stans, 15 individuos para Grevillea robusta A. Cunn. ex R. Br, y 14 individuos para Schinus molle L.","locator":"Resumen"}],"check":[{"inputs":{"D":8},"expected":17.0379,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":15},"expected":73.6748,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Ln is natural log as printed; the Discusión notes that back-transformed log models underestimate but gives no correction factor, so none is applied. Biomass is oven-dry (103 °C) total aboveground (stem + branches + leaves), kg/tree; dap in cm, ht (total height) in m. DBH and height ranges are from Cuadro 2 (descriptive statistics of the sampled trees). Trees from a managed plantation at 2 x 2 m spacing, used to inform urban green areas."},{"id":"begazo-2018-schinus","source":"begazo-2018","name":"Total aboveground biomass, Schinus molle, dap × ht","output":{"quantity":"agb"},"expression":"exp(-3.3201 + 1.4834 * ln(D * H))","published":{"expression":"exp(-3.3201 + 1.4834 * ln(dap * ht))","units":{"dap":"cm","ht":"m"},"variables":{"dap":"D","ht":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Schinus molle","family":"Anacardiaceae","group":"broadleaf"},"region":{"scope":"site","countries":["PE"],"place":"Bosque simulado y Plantación forestal, UNALM, La Molina, Lima (238 m a.s.l.)","biomes":["dryland"]},"stand":"plantation","fit":{"n_trees":14,"dbh_min_cm":1.3,"dbh_max_cm":22.9,"h_min_m":2.7,"h_max_m":10.9,"r2":0.99,"method":"linearised regression on Ln(B), no back-transform correction stated"},"evidence":[{"field":"expression","quote":"Ln ( BT ) = -3.3201 + 1.4834 × Ln (dap × ht)","locator":"Cuadro 13 / Resumen / Conclusiones"},{"field":"fit.n_trees","quote":"se evaluaron 44 individuos en total: 15 individuos de la especie Tecoma stans (L.) Juss. ex Kunth var. stans, 15 individuos para Grevillea robusta A. Cunn. ex R. Br, y 14 individuos para Schinus molle L.","locator":"Resumen"}],"check":[{"inputs":{"D":8,"H":6},"expected":11.2733,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":15,"H":10},"expected":61.1101,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Ln is natural log as printed; the Discusión notes that back-transformed log models underestimate but gives no correction factor, so none is applied. Biomass is oven-dry (103 °C) total aboveground (stem + branches + leaves), kg/tree; dap in cm, ht (total height) in m. DBH and height ranges are from Cuadro 2 (descriptive statistics of the sampled trees). Trees from a managed plantation at 2 x 2 m spacing, used to inform urban green areas."},{"id":"begazo-2018-tecoma","source":"begazo-2018","name":"Total aboveground biomass, Tecoma stans var. stans, dap only","output":{"quantity":"agb"},"expression":"exp(-2.9409 + 2.6925 * ln(D))","published":{"expression":"exp(-2.9409 + 2.6925 * ln(dap))","units":{"dap":"cm"},"variables":{"dap":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Tecoma stans var. stans","family":"Bignoniaceae","group":"broadleaf"},"region":{"scope":"site","countries":["PE"],"place":"Bosque simulado y Plantación forestal, UNALM, La Molina, Lima (238 m a.s.l.)","biomes":["dryland"]},"stand":"plantation","fit":{"n_trees":15,"dbh_min_cm":3.8,"dbh_max_cm":19.1,"h_min_m":4.4,"h_max_m":11.8,"r2":0.93,"method":"linearised regression on Ln(B), no back-transform correction stated"},"evidence":[{"field":"expression","quote":"Ln ( BT ) = -2.9409 + 2.6925 × Ln (dap)","locator":"Cuadro 9 / Resumen / Conclusiones"},{"field":"fit.n_trees","quote":"se evaluaron 44 individuos en total: 15 individuos de la especie Tecoma stans (L.) Juss. ex Kunth var. stans, 15 individuos para Grevillea robusta A. Cunn. ex R. Br, y 14 individuos para Schinus molle L.","locator":"Resumen"}],"check":[{"inputs":{"D":8},"expected":14.2677,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":15},"expected":77.5192,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Ln is natural log as printed; the Discusión notes that back-transformed log models underestimate but gives no correction factor, so none is applied. Biomass is oven-dry (103 °C) total aboveground (stem + branches + leaves), kg/tree; dap in cm, ht (total height) in m. DBH and height ranges are from Cuadro 2 (descriptive statistics of the sampled trees). Trees from a managed plantation at 2 x 2 m spacing, used to inform urban green areas. Cuadro 9 prints the slope as 2.6935; the abstract, results text and conclusions print 2.6925, which is used here."},{"id":"bocko-2023-m13-base-diameter-ge5","source":"bocko-2023","name":"Raphia laurentii AGB from stem base diameter (m13, mean petiole diameter ≥5 cm)","output":{"quantity":"agb"},"expression":"1.11 * exp(-5.737 + 3.048 * ln(DRC))","published":{"expression":"1.11 * exp(-5.737 + 3.048 * ln(D))","units":{"D":"cm"},"variables":{"D":"DRC"},"output_unit":"kg"},"taxon":{"level":"species","name":"Raphia laurentii","group":"palm"},"region":{"scope":"site","countries":["CG"],"place":"Peat swamp forest near Bolembe, Likouala Department, Republic of the Congo","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":60,"cf":1.11,"method":"ln-ln linear regression times correction factor CF = exp(RSE²/2)"},"evidence":[{"field":"expression","quote":"m13 ln(AGB) = a + b × ln(D) -5.737 3.048 0.69 0.45 77.3 48.07 -3.76 1.11","locator":"Table 2, m13 row (AGB in kg dry mass); CF defined in Methods, p. 5"},{"field":"notes","quote":"The aboveground biomass estimated from each logarithmic linear model was multiplied by the following correction factor","locator":"Development of allometric equations, p. 5"},{"field":"fit.n_trees","quote":"Table 2 range (n): 5–15 cm (60)","locator":"Table 2, mean petiole diameter range (n) column"}],"check":[{"inputs":{"DRC":10},"expected":3.9974,"origin":"computed","note":"computed from the published form (coefficients and CF as printed)"},{"inputs":{"DRC":20},"expected":33.061,"origin":"computed","note":"computed from the published form (coefficients and CF as printed)"},{"inputs":{"DRC":30},"expected":113.77,"origin":"computed","note":"computed from the published form (coefficients and CF as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Whole-palm aboveground dry biomass (stem, sheaths, petioles, rachis and leaflets, so foliage is included). Stem base diameter was measured about 13 cm above the ground, mapped to DRC (root collar / stem base diameter); the fitted range of this variable is 8.20–35.40 cm (Table 1, all 90 palms), which is not DBH so it is not stored as a DBH range. Fitted on palms with mean petiole diameter 5–15 cm (60 palms); ranges of the subset are not given. CF is the printed correction factor (rounded to 2 decimals) and is applied in the expression. Single-predictor model: the paper's better models use the sum of petiole diameters (not a canonical variable; not captured), so this is a fallback for when only diameter or height is measured. R² adj printed: 0.69; RSE 0.45 (Table 2)."},{"id":"bocko-2023-m15-height-ge5","source":"bocko-2023","name":"Raphia laurentii AGB from total palm height (m15, mean petiole diameter ≥5 cm)","output":{"quantity":"agb"},"expression":"1.12 * exp(-5.027 + 3.349 * ln(H))","published":{"expression":"1.12 * exp(-5.027 + 3.349 * ln(H))","units":{"H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Raphia laurentii","group":"palm"},"region":{"scope":"site","countries":["CG"],"place":"Peat swamp forest near Bolembe, Likouala Department, Republic of the Congo","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":60,"cf":1.12,"method":"ln-ln linear regression times correction factor CF = exp(RSE²/2)"},"evidence":[{"field":"expression","quote":"m15 ln(AGB) = a + b × ln(H) -5.027 3.349 0.64 0.48 86.29 45.59 0.27 1.12","locator":"Table 2, m15 row (AGB in kg dry mass); CF defined in Methods, p. 5"},{"field":"notes","quote":"The aboveground biomass estimated from each logarithmic linear model was multiplied by the following correction factor","locator":"Development of allometric equations, p. 5"},{"field":"fit.n_trees","quote":"Table 2 range (n): 5–15 cm (60)","locator":"Table 2, mean petiole diameter range (n) column"}],"check":[{"inputs":{"H":8},"expected":7.7708,"origin":"computed","note":"computed from the published form (coefficients and CF as printed)"},{"inputs":{"H":13},"expected":39.502,"origin":"computed","note":"computed from the published form (coefficients and CF as printed)"},{"inputs":{"H":18},"expected":117.47,"origin":"computed","note":"computed from the published form (coefficients and CF as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Whole-palm aboveground dry biomass (stem, sheaths, petioles, rachis and leaflets, so foliage is included). Total height is base of the stem to the highest point of the fronds. Fitted on palms with mean petiole diameter 5–15 cm (60 palms); ranges of the subset are not given. CF is the printed correction factor (rounded to 2 decimals) and is applied in the expression. Single-predictor model: the paper's better models use the sum of petiole diameters (not a canonical variable; not captured), so this is a fallback for when only diameter or height is measured. R² adj printed: 0.64; RSE 0.48 (Table 2)."},{"id":"bocko-2023-m2-base-diameter","source":"bocko-2023","name":"Raphia laurentii AGB from stem base diameter (m2, all sizes)","output":{"quantity":"agb"},"expression":"1.1 * exp(-6.308 + 3.211 * ln(DRC))","published":{"expression":"1.1 * exp(-6.308 + 3.211 * ln(D))","units":{"D":"cm"},"variables":{"D":"DRC"},"output_unit":"kg"},"taxon":{"level":"species","name":"Raphia laurentii","group":"palm"},"region":{"scope":"site","countries":["CG"],"place":"Peat swamp forest near Bolembe, Likouala Department, Republic of the Congo","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":90,"cf":1.1,"method":"ln-ln linear regression times correction factor CF = exp(RSE²/2)"},"evidence":[{"field":"expression","quote":"m2 ln(AGB) = a + b × ln(D) -6.308 3.211 0.86 0.44 113.53 39.28 -4.58 1.10","locator":"Table 2, m2 row (AGB in kg dry mass); CF defined in Methods, p. 5"},{"field":"notes","quote":"The aboveground biomass estimated from each logarithmic linear model was multiplied by the following correction factor","locator":"Development of allometric equations, p. 5"},{"field":"fit.n_trees","quote":"Table 2 range (n): 2–15 cm (90)","locator":"Table 2, mean petiole diameter range (n) column"}],"check":[{"inputs":{"DRC":10},"expected":3.2573,"origin":"computed","note":"computed from the published form (coefficients and CF as printed)"},{"inputs":{"DRC":20},"expected":30.163,"origin":"computed","note":"computed from the published form (coefficients and CF as printed)"},{"inputs":{"DRC":30},"expected":110.89,"origin":"computed","note":"computed from the published form (coefficients and CF as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Whole-palm aboveground dry biomass (stem, sheaths, petioles, rachis and leaflets, so foliage is included). Stem base diameter was measured about 13 cm above the ground, mapped to DRC (root collar / stem base diameter); the fitted range of this variable is 8.20–35.40 cm (Table 1, all 90 palms), which is not DBH so it is not stored as a DBH range. Fitted on 90 palms of mean petiole diameter 2–15 cm. CF is the printed correction factor (rounded to 2 decimals) and is applied in the expression. Single-predictor model: the paper's better models use the sum of petiole diameters (not a canonical variable; not captured), so this is a fallback for when only diameter or height is measured. R² adj printed: 0.86; RSE 0.44 (Table 2)."},{"id":"bocko-2023-m4-height","source":"bocko-2023","name":"Raphia laurentii AGB from total palm height (m4, all sizes)","output":{"quantity":"agb"},"expression":"1.13 * exp(-5.262 + 3.404 * ln(H))","published":{"expression":"1.13 * exp(-5.262 + 3.404 * ln(H))","units":{"H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Raphia laurentii","group":"palm"},"region":{"scope":"site","countries":["CG"],"place":"Peat swamp forest near Bolembe, Likouala Department, Republic of the Congo","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":90,"h_min_m":5.13,"h_max_m":21.2,"cf":1.13,"method":"ln-ln linear regression times correction factor CF = exp(RSE²/2)"},"evidence":[{"field":"expression","quote":"m4 ln(AGB) = a + b × ln(H) -5.262 3.404 0.82 0.50 136.13 38.51 -5.55 1.13","locator":"Table 2, m4 row (AGB in kg dry mass); CF defined in Methods, p. 5"},{"field":"notes","quote":"The aboveground biomass estimated from each logarithmic linear model was multiplied by the following correction factor","locator":"Development of allometric equations, p. 5"},{"field":"fit.n_trees","quote":"Table 2 range (n): 2–15 cm (90)","locator":"Table 2, mean petiole diameter range (n) column"},{"field":"fit.h_min_m","quote":"Total palm height (H; m) 13.30±3.88 5.13–21.20","locator":"Table 1 (all 90 palms)"}],"check":[{"inputs":{"H":8},"expected":6.9493,"origin":"computed","note":"computed from the published form (coefficients and CF as printed)"},{"inputs":{"H":13},"expected":36.281,"origin":"computed","note":"computed from the published form (coefficients and CF as printed)"},{"inputs":{"H":18},"expected":109.84,"origin":"computed","note":"computed from the published form (coefficients and CF as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Whole-palm aboveground dry biomass (stem, sheaths, petioles, rachis and leaflets, so foliage is included). Total height is base of the stem to the highest point of the fronds. Fitted on 90 palms of mean petiole diameter 2–15 cm. CF is the printed correction factor (rounded to 2 decimals) and is applied in the expression. Single-predictor model: the paper's better models use the sum of petiole diameters (not a canonical variable; not captured), so this is a fallback for when only diameter or height is measured. R² adj printed: 0.82; RSE 0.50 (Table 2)."},{"id":"bohm-2011-eq6","source":"bohm-2011","name":"Young black locust woody AGB from shoot basal diameter (Eq. 6)","output":{"quantity":"agb","excludes":["foliage"]},"expression":"exp(-3.7933 + 2.8407 * ln(DRC)) * 1.099","published":{"expression":"exp(-3.7933 + 2.8407 * ln(SBD)) * 1.099","units":{"SBD":"cm"},"variables":{"SBD":"DRC"},"output_unit":"kg"},"taxon":{"level":"species","name":"Robinia pseudoacacia","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"site","countries":["DE"],"place":"Welzow-Sued post-mining area, Lower Lusatia, Brandenburg","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":1242,"r2":0.91,"rse":0.43,"cf":1.099,"method":"OLS regression of ln-transformed data, back-transformed with correction factor CF"},"evidence":[{"field":"expression","quote":"ln(M [kg]) = - 3.7933 + 2.8407 . ln(SBD [cm])","locator":"Table 2, equation 6"},{"field":"fit.cf","quote":"CF = 1.099","locator":"Table 2, equation 6"},{"field":"fit.n_trees","quote":"n = 1242","locator":"Table 2 caption"}],"check":[{"inputs":{"DRC":8},"expected":9.1,"origin":"published","note":"Table 3, SBD column, eq. 6 (rounded to 0.1 kg in the paper)"},{"inputs":{"DRC":9},"expected":12.7,"origin":"published","note":"Table 3, SBD column, eq. 6 (rounded to 0.1 kg in the paper)"},{"inputs":{"DRC":10},"expected":17.2,"origin":"published","note":"Table 3, SBD column, eq. 6 (rounded to 0.1 kg in the paper)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Output is total aboveground woody dry biomass of a single tree (kg); the trees were cut about 10 cm above the soil, so the lowest 10 cm of stem is not in the biomass. Foliage listed as excluded because the paper models woody biomass only. SBD (shoot basal diameter, measured with a caliper about 10 cm above the soil) is mapped to canonical DRC. Natural log, as printed in Table 2; M = CF * exp(ln(M)) per Eq. 3. Trees from 2, 3, 4 and 14 year old short-rotation plantations. The paper states 1243 trees in the text and n = 1242 in the Table 2 caption; the table value is used. The paper gives no diameter or height range for the fit, so none is set."},{"id":"bohm-2011-eq7","source":"bohm-2011","name":"Young black locust woody AGB from tree height (Eq. 7)","output":{"quantity":"agb","excludes":["foliage"]},"expression":"exp(-3.3117 + 2.6847 * ln(H)) * 1.138","published":{"expression":"exp(-3.3117 + 2.6847 * ln(TH)) * 1.138","units":{"TH":"m"},"variables":{"TH":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Robinia pseudoacacia","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"site","countries":["DE"],"place":"Welzow-Sued post-mining area, Lower Lusatia, Brandenburg","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":1242,"r2":0.87,"rse":0.51,"cf":1.138,"method":"OLS regression of ln-transformed data, back-transformed with correction factor CF"},"evidence":[{"field":"expression","quote":"ln(M [kg]) = - 3.3117 + 2.6847 . ln(TH [m])","locator":"Table 2, equation 7"},{"field":"fit.cf","quote":"CF = 1.138","locator":"Table 2, equation 7"},{"field":"fit.n_trees","quote":"n = 1242","locator":"Table 2 caption"}],"check":[{"inputs":{"H":8},"expected":11,"origin":"published","note":"Table 3, tree height column, eq. 7 (rounded to 0.1 kg in the paper)"},{"inputs":{"H":9},"expected":15.1,"origin":"published","note":"Table 3, tree height column, eq. 7 (rounded to 0.1 kg in the paper)"},{"inputs":{"H":10},"expected":20.1,"origin":"published","note":"Table 3, tree height column, eq. 7 (rounded to 0.1 kg in the paper)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Output is total aboveground woody dry biomass of a single tree (kg); the trees were cut about 10 cm above the soil, so the lowest 10 cm of stem is not in the biomass. Foliage listed as excluded because the paper models woody biomass only. SBD (shoot basal diameter, measured with a caliper about 10 cm above the soil) is mapped to canonical DRC. Natural log, as printed in Table 2; M = CF * exp(ln(M)) per Eq. 3. Trees from 2, 3, 4 and 14 year old short-rotation plantations. The paper states 1243 trees in the text and n = 1242 in the Table 2 caption; the table value is used. The paper gives no diameter or height range for the fit, so none is set."},{"id":"bohm-2011-eq8","source":"bohm-2011","name":"Young black locust woody AGB from SBD times height (Eq. 8)","output":{"quantity":"agb","excludes":["foliage"]},"expression":"exp(-3.6887 + 1.4412 * ln(DRC * H)) * 1.075","published":{"expression":"exp(-3.6887 + 1.4412 * ln(SBD * TH)) * 1.075","units":{"SBD":"cm","TH":"m"},"variables":{"SBD":"DRC","TH":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Robinia pseudoacacia","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"site","countries":["DE"],"place":"Welzow-Sued post-mining area, Lower Lusatia, Brandenburg","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":1242,"r2":0.93,"rse":0.38,"cf":1.075,"method":"OLS regression of ln-transformed data, back-transformed with correction factor CF"},"evidence":[{"field":"expression","quote":"ln(M [kg]) = - 3.6887 + 1.4412 . ln(SBD [cm] . TH [m])","locator":"Table 2, equation 8"},{"field":"fit.cf","quote":"CF = 1.075","locator":"Table 2, equation 8"},{"field":"fit.n_trees","quote":"n = 1242","locator":"Table 2 caption"}],"check":[{"inputs":{"DRC":3,"H":3},"expected":0.6378,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"DRC":6,"H":5},"expected":3.6162,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"DRC":10,"H":9},"expected":17.6149,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Output is total aboveground woody dry biomass of a single tree (kg); the trees were cut about 10 cm above the soil, so the lowest 10 cm of stem is not in the biomass. Foliage listed as excluded because the paper models woody biomass only. SBD (shoot basal diameter, measured with a caliper about 10 cm above the soil) is mapped to canonical DRC. Natural log, as printed in Table 2; M = CF * exp(ln(M)) per Eq. 3. Trees from 2, 3, 4 and 14 year old short-rotation plantations. The paper states 1243 trees in the text and n = 1242 in the Table 2 caption; the table value is used. The paper gives no diameter or height range for the fit, so none is set."},{"id":"brown-1997-dry","source":"brown-1997","name":"Dry tropical zone AGB from DBH (Eq. 3.2.1)","output":{"quantity":"agb"},"expression":"exp(-1.996 + 2.32 * ln(D))","published":{"expression":"exp(-1.996 + 2.32 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Tropical broadleaf trees (mixed species)","group":"broadleaf"},"region":{"scope":"pantropical","countries":[],"place":"Tropics, dry zone","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":28,"dbh_min_cm":5,"dbh_max_cm":40,"r2":0.89},"evidence":[{"field":"expression","quote":"Y = exp{-1.996+2.32*ln(D)}","locator":"Eq. 3.2.1, Section 3.2.1 table"},{"field":"published.units","quote":"Y= biomass per tree in kg, D = dbh in cm, and BA = basal area in cm2","locator":"Section 3.2.1, biomass regression equations table header"},{"field":"fit.n_trees","quote":"5-40 | 28 | 0.89","locator":"Eq. 3.2.1 row: range in dbh (cm), number of trees, adjusted r2"}],"check":[{"inputs":{"D":20},"expected":141.75,"origin":"computed","note":"computed with python3 from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Revised from Brown et al. (1989) for dry forest in India. The primer recommends it for dry zones with rainfall > 900 mm/yr (Eq. 3.2.2, Martinez-Yrizar et al. 1992, for < 900 mm/yr). r2 is the adjusted r² printed in the table. The primer does not say whether a log back-transform correction is included; none applied. Climatic zones per the primer: dry <1500 mm/yr rain with a dry season of several months; moist 1500–4000 mm/yr; wet >4000 mm/yr, lowland conditions only."},{"id":"brown-1997-moist-power","source":"brown-1997","name":"Moist tropical zone AGB, power law (Eq. 3.2.4)","output":{"quantity":"agb"},"expression":"exp(-2.134 + 2.530 * ln(D))","published":{"expression":"exp(-2.134 + 2.530 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Tropical broadleaf trees (mixed species)","group":"broadleaf"},"region":{"scope":"pantropical","countries":[],"place":"Tropics, moist zone","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":170,"dbh_min_cm":5,"dbh_max_cm":148,"r2":0.97},"evidence":[{"field":"expression","quote":"Y = exp{-2.134+2.530*ln(D)}","locator":"Eq. 3.2.4, Section 3.2.1 table"},{"field":"published.units","quote":"Y= biomass per tree in kg, D = dbh in cm, and BA = basal area in cm2","locator":"Section 3.2.1, biomass regression equations table header"},{"field":"fit.n_trees","quote":"Both equations are based on the same data base; A. J. R. Gillespie, pers. comm. based on a revision of equation in Brown et al. (1989).","locator":"Section 3.2.1 table, footnote b"}],"check":[{"inputs":{"D":30},"expected":646,"origin":"published","note":"Section 3.2.1 worked example, row 3 'Biomass of tree at mid-point of class': 646 kg at 30 cm. The table labels the equation 3.2.3, but its values match Eq. 3.2.4."},{"inputs":{"D":50},"expected":2353,"origin":"published","note":"Same worked example: 2353 kg at 50 cm (labelled Eq. 3.2.3, values match Eq. 3.2.4)."},{"inputs":{"D":30},"expected":646.15,"origin":"computed","note":"computed with python3 from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"The table leaves range and n blank for this row; footnote b says Eqs. 3.2.3 and 3.2.4 are 'based on the same data base', so n and range are taken from the Eq. 3.2.3 row. The primer prefers it over Eq. 3.2.3 up to about 80 cm and warns it rises rapidly at large diameters. r2 is adjusted r². The primer does not say whether a log back-transform correction is included; none applied. Climatic zones per the primer: dry <1500 mm/yr rain with a dry season of several months; moist 1500–4000 mm/yr; wet >4000 mm/yr, lowland conditions only."},{"id":"brown-1997-moist-quadratic","source":"brown-1997","name":"Moist tropical zone AGB, quadratic (Eq. 3.2.3)","output":{"quantity":"agb"},"expression":"42.69 - 12.800 * D + 1.242 * D^2","published":{"expression":"42.69 - 12.800 * D + 1.242 * D^2","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Tropical broadleaf trees (mixed species)","group":"broadleaf"},"region":{"scope":"pantropical","countries":[],"place":"Tropics, moist zone","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":170,"dbh_min_cm":5,"dbh_max_cm":148,"r2":0.84},"evidence":[{"field":"expression","quote":"Y = 42.69-12.800(D)+1.242(D2)","locator":"Eq. 3.2.3, Section 3.2.1 table"},{"field":"published.units","quote":"Y= biomass per tree in kg, D = dbh in cm, and BA = basal area in cm2","locator":"Section 3.2.1, biomass regression equations table header"},{"field":"fit.n_trees","quote":"5-148 | 170 | 0,84","locator":"Eq. 3.2.3 row: range in dbh (cm), number of trees, adjusted r2"}],"check":[{"inputs":{"D":30},"expected":776.49,"origin":"computed","note":"computed with python3 from the published form"},{"inputs":{"D":100},"expected":11182.69,"origin":"computed","note":"computed with python3 from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"A. J. R. Gillespie (pers. comm.) revision of the Brown et al. (1989) moist equation. The primer recommends this form for trees with dbh above about 160 cm because it behaves better there than Eq. 3.2.4. r2 is adjusted r². Note: the primer's worked stand-table example says it uses Eq. 3.2.3 but its per-tree values match Eq. 3.2.4. The primer does not say whether a log back-transform correction is included; none applied. Climatic zones per the primer: dry <1500 mm/yr rain with a dry season of several months; moist 1500–4000 mm/yr; wet >4000 mm/yr, lowland conditions only."},{"id":"brown-1997-pine","source":"brown-1997","name":"Tropical pines AGB from DBH (Eq. 3.1.8 / 3.2.8)","output":{"quantity":"agb"},"expression":"exp(-1.170 + 2.119 * ln(D))","published":{"expression":"exp(-1.170 + 2.119 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"genus","name":"Pinus","family":"Pinaceae","group":"conifer"},"region":{"scope":"global","countries":["US","IN","PR"],"place":"Pine stands in the southeastern USA, India and Puerto Rico; offered for tropical pine forests","biomes":["tropical","subtropical"]},"stand":"mixed","fit":{"n_trees":63,"dbh_min_cm":2,"dbh_max_cm":52,"r2":0.98},"evidence":[{"field":"expression","quote":"Y(kg) = exp{-1.170+2.119*ln(D)}","locator":"Eq. 3.1.8, Section 3.2.1 table"},{"field":"published.units","quote":"Y= biomass per tree in kg, D = dbh in cm, and BA = basal area in cm2","locator":"Section 3.2.1, biomass regression equations table header"},{"field":"fit.n_trees","quote":"D = dbh, cm; range in dbh = 2-52 cm; number of trees =63; adjusted r 2 =0.98","locator":"Section 3.2.1, conifer forests"}],"check":[{"inputs":{"D":20},"expected":177.32,"origin":"computed","note":"computed with python3 from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Preliminary equation from harvested pines in eight literature sources (southeastern USA, India, Puerto Rico), several Pinus species pooled. The HTML labels it Eq. 3.1.8 while the text calls it Eq. 3.2.8. r2 is adjusted r². The primer does not say whether a log back-transform correction is included; none applied. Stand origin (plantation vs natural) not stated."},{"id":"brown-iverson-1992-wet","source":"brown-iverson-1992","name":"Wet tropical zone AGB, quadratic (Brown 1997 Eq. 3.2.5)","output":{"quantity":"agb"},"expression":"21.297 - 6.953 * D + 0.740 * D^2","published":{"expression":"21.297 - 6.953 * D + 0.740 * D^2","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Tropical broadleaf trees (mixed species)","group":"broadleaf"},"region":{"scope":"pantropical","countries":[],"place":"Tropics, wet zone","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":169,"dbh_min_cm":4,"dbh_max_cm":112,"r2":0.92},"evidence":[{"field":"expression","quote":"Y = 21.297-6.953(D)+0.740(D2)","locator":"Eq. 3.2.5, Section 3.2.1 table"},{"field":"published.units","quote":"Y= biomass per tree in kg, D = dbh in cm, and BA = basal area in cm2","locator":"Section 3.2.1, biomass regression equations table header"},{"field":"notes","quote":"c From Brown and Iverson (1992)","locator":"Brown 1997, Section 3.2.1 table, footnote c"},{"field":"fit.n_trees","quote":"4-112 | 169 | 0.92","locator":"Brown 1997, Eq. 3.2.5 row: range in dbh (cm), number of trees, adjusted r2"}],"check":[{"inputs":{"D":30},"expected":478.71,"origin":"computed","note":"computed with python3 from the published form"}],"verification":"secondary","secondary_url":"https://www.fao.org/4/w4095e/w4095e06.htm","checked_at":"2026-11-01","notes":"Commonly cited as Brown (1997) Eq. 3.2.5, but the primer's footnote c attributes it to Brown and Iverson (1992), which could not be read; taken from Brown (1997). r2 is adjusted r². The primer does not say whether a log back-transform correction is included; none applied. Climatic zones per the primer: dry <1500 mm/yr rain with a dry season of several months; moist 1500–4000 mm/yr; wet >4000 mm/yr, lowland conditions only."},{"id":"camargo-2024-model2-linear","source":"camargo-2024","name":"Guadua culm AGB from dbh, weighted linear model (Model 2, Table 4)","output":{"quantity":"agb"},"expression":"-29.755 + 6.2659 * D","published":{"expression":"-29.755 + 6.2659 * dbh","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Guadua angustifolia","family":"Poaceae","group":"bamboo"},"region":{"scope":"regional","countries":["CO"],"place":"Coffee region, Colombian Andes (six sites, 900 to 2000 m a.s.l.)","biomes":["tropical","montane"]},"stand":"natural","fit":{"n_trees":130,"r2":0.7866,"method":"weighted linear regression (weights 1/dbh^2δ)"},"evidence":[{"field":"expression","quote":"M 2, P dbh, a −29.755, b 6.2659, R2 0.7866","locator":"Table 4, Model 2 (form AGB = a1 + b1 × X1, Eq. 7)"},{"field":"fit.n_trees","quote":"a total of 130 of these culms were used for destructive sampling and calculating biomass","locator":"Sect. 3, Data collection and measurements"}],"check":[{"inputs":{"D":8},"expected":20.372,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":12},"expected":45.436,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":16},"expected":70.499,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Per culm (guadua bamboo), not per tree; dbh is culm diameter at breast height in cm, AGB in kg (culm + branches + leaves). Model 2 of the paper; the intercept is negative so the linear form gives negative AGB below dbh of about 4.7 cm. The paper's Table 2 gives culm dbh 6.6 to 16.6 cm for the assessed forests but does not say that is the fitted sample, so no range is recorded. Source table shows only the model number, predictor, a and b."},{"id":"camargo-2024-model7-power","source":"camargo-2024","name":"Guadua culm AGB from dbh, weighted power model (Model 7, Table 7)","output":{"quantity":"agb"},"expression":"0.4608 * D^1.8366","published":{"expression":"0.4608 * dbh^1.8366","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Guadua angustifolia","family":"Poaceae","group":"bamboo"},"region":{"scope":"regional","countries":["CO"],"place":"Coffee region, Colombian Andes (six sites, 900 to 2000 m a.s.l.)","biomes":["tropical","montane"]},"stand":"natural","fit":{"n_trees":130,"r2":0.6403,"method":"weighted nonlinear power model (weights 1/dbh^2δ)"},"evidence":[{"field":"expression","quote":"M 7, P dbh, a 0.4608, b 1.8366, R2 0.6403","locator":"Table 7, Model 7 (form AGB = a × X^b, Eq. 9)"},{"field":"fit.n_trees","quote":"a total of 130 of these culms were used for destructive sampling and calculating biomass","locator":"Sect. 3, Data collection and measurements"}],"check":[{"inputs":{"D":8},"expected":20.996,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":12},"expected":44.212,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":16},"expected":74.989,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Per culm (guadua bamboo), not per tree; dbh is culm diameter at breast height in cm, AGB in kg (culm + branches + leaves). Model 7 of the paper, recommended for practical use because it needs dbh only. The paper's Table 2 gives culm dbh 6.6 to 16.6 cm for the assessed forests but does not say that is the fitted sample, so no range is recorded. Source table shows only the model number, predictor, a and b."},{"id":"chakraborty-2016-dbh-agb","source":"chakraborty-2016","name":"Beech on dry sites, total aboveground dry biomass from DBH (Table 3)","output":{"quantity":"agb"},"expression":"0.201 * D^2.173","published":{"expression":"0.201 * DBH^2.173","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Fagus sylvatica","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["DE","CH"],"place":"Five abandoned oak-coppice stands on dry south-facing sites, southern Germany and northern Switzerland","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":66,"dbh_min_cm":2,"dbh_max_cm":18,"method":"power function regression, biomass = a * diameter^b (dry mass)"},"evidence":[{"field":"expression","quote":"AB Dry a 0.201 b 2.173 Adj-R² 0.94 N 66","locator":"Table 3, AB Dry row"},{"field":"fit.n_trees","quote":"N 66","locator":"Table 3, AB Dry row"},{"field":"fit.dbh_min_cm","quote":"The range of the DRC and DBH of 86 plants were 1.1-4.1 cm and 2-18 cm, respectively.","locator":"Materials and methods, Sampling design"}],"check":[{"inputs":{"D":5},"expected":6.6383,"origin":"computed","note":"computed from the published coefficients"},{"inputs":{"D":10},"expected":29.9362,"origin":"computed","note":"computed from the published coefficients"},{"inputs":{"D":15},"expected":72.2508,"origin":"computed","note":"computed from the published coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dry biomass in kg. Adjusted R2 as printed: 0.94. Includes leaves (AB is stem with bark plus branches including foliage).. Fitted on dry-site beech; the paper also gives fresh-biomass and log-transformed variants (not added)."},{"id":"chakraborty-2016-dbh-branch","source":"chakraborty-2016","name":"Beech on dry sites, branch dry biomass including foliage from DBH (Table 3)","output":{"quantity":"branch_biomass"},"expression":"0.123 * D^1.776","published":{"expression":"0.123 * DBH^1.776","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Fagus sylvatica","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["DE","CH"],"place":"Five abandoned oak-coppice stands on dry south-facing sites, southern Germany and northern Switzerland","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":66,"dbh_min_cm":2,"dbh_max_cm":18,"method":"power function regression, biomass = a * diameter^b (dry mass)"},"evidence":[{"field":"expression","quote":"BR Dry a 0.123 b 1.776 Adj-R² 0.79 N 66","locator":"Table 3, BR Dry row"},{"field":"fit.n_trees","quote":"N 66","locator":"Table 3, BR Dry row"},{"field":"fit.dbh_min_cm","quote":"The range of the DRC and DBH of 86 plants were 1.1-4.1 cm and 2-18 cm, respectively.","locator":"Materials and methods, Sampling design"}],"check":[{"inputs":{"D":5},"expected":2.1443,"origin":"computed","note":"computed from the published coefficients"},{"inputs":{"D":10},"expected":7.3435,"origin":"computed","note":"computed from the published coefficients"},{"inputs":{"D":15},"expected":15.0884,"origin":"computed","note":"computed from the published coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dry biomass in kg. Adjusted R2 as printed: 0.79. Branch biomass includes foliage, so it is a branch plus leaves total.. Fitted on dry-site beech; the paper also gives fresh-biomass and log-transformed variants (not added)."},{"id":"chakraborty-2016-dbh-stem","source":"chakraborty-2016","name":"Beech on dry sites, stem with bark dry biomass from DBH (Table 3)","output":{"quantity":"stem_biomass"},"expression":"0.1 * D^2.343","published":{"expression":"0.1 * DBH^2.343","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Fagus sylvatica","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["DE","CH"],"place":"Five abandoned oak-coppice stands on dry south-facing sites, southern Germany and northern Switzerland","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":66,"dbh_min_cm":2,"dbh_max_cm":18,"method":"power function regression, biomass = a * diameter^b (dry mass)"},"evidence":[{"field":"expression","quote":"ST Dry a 0.100 b 2.343 Adj-R² 0.96 N 66","locator":"Table 3, ST Dry row"},{"field":"fit.n_trees","quote":"N 66","locator":"Table 3, ST Dry row"},{"field":"fit.dbh_min_cm","quote":"The range of the DRC and DBH of 86 plants were 1.1-4.1 cm and 2-18 cm, respectively.","locator":"Materials and methods, Sampling design"}],"check":[{"inputs":{"D":5},"expected":4.342,"origin":"computed","note":"computed from the published coefficients"},{"inputs":{"D":10},"expected":22.0293,"origin":"computed","note":"computed from the published coefficients"},{"inputs":{"D":15},"expected":56.9616,"origin":"computed","note":"computed from the published coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dry biomass in kg. Adjusted R2 as printed: 0.96. Stem with bark.. Fitted on dry-site beech; the paper also gives fresh-biomass and log-transformed variants (not added)."},{"id":"chakraborty-2016-drc-agb","source":"chakraborty-2016","name":"Beech saplings on dry sites, total aboveground dry biomass from root-collar diameter (Table 2)","output":{"quantity":"agb"},"expression":"0.04 * DRC^2.408","published":{"expression":"0.04 * DRC^2.408","units":{"DRC":"cm"},"variables":{"DRC":"DRC"},"output_unit":"kg"},"taxon":{"level":"species","name":"Fagus sylvatica","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["DE","CH"],"place":"Five abandoned oak-coppice stands on dry south-facing sites, southern Germany and northern Switzerland","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":20,"method":"power function regression, biomass = a * diameter^b (dry mass)"},"evidence":[{"field":"expression","quote":"AB Dry a 0.04 b 2.408 Adj-R² 0.83 N 20","locator":"Table 2, AB Dry row"},{"field":"fit.n_trees","quote":"N 20","locator":"Table 2, AB Dry row"}],"check":[{"inputs":{"DRC":1.5},"expected":0.1062,"origin":"computed","note":"computed from the published coefficients"},{"inputs":{"DRC":2.5},"expected":0.3633,"origin":"computed","note":"computed from the published coefficients"},{"inputs":{"DRC":3.5},"expected":0.8169,"origin":"computed","note":"computed from the published coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dry biomass in kg. Adjusted R2 as printed: 0.83. Saplings only; DRC measured at 5 cm above ground, sapling DRC range 1.1-4.1 cm. Includes leaves.. Fitted on dry-site beech; the paper also gives fresh-biomass and log-transformed variants (not added)."},{"id":"chakraborty-2016-drc-branch","source":"chakraborty-2016","name":"Beech saplings on dry sites, branch dry biomass including foliage from root-collar diameter (Table 2)","output":{"quantity":"branch_biomass"},"expression":"0.02 * DRC^2.533","published":{"expression":"0.02 * DRC^2.533","units":{"DRC":"cm"},"variables":{"DRC":"DRC"},"output_unit":"kg"},"taxon":{"level":"species","name":"Fagus sylvatica","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["DE","CH"],"place":"Five abandoned oak-coppice stands on dry south-facing sites, southern Germany and northern Switzerland","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":20,"method":"power function regression, biomass = a * diameter^b (dry mass)"},"evidence":[{"field":"expression","quote":"BR Dry a 0.02 b 2.533 Adj-R² 0.77 N 20","locator":"Table 2, BR Dry row"},{"field":"fit.n_trees","quote":"N 20","locator":"Table 2, BR Dry row"}],"check":[{"inputs":{"DRC":1.5},"expected":0.0559,"origin":"computed","note":"computed from the published coefficients"},{"inputs":{"DRC":2.5},"expected":0.2037,"origin":"computed","note":"computed from the published coefficients"},{"inputs":{"DRC":3.5},"expected":0.4777,"origin":"computed","note":"computed from the published coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dry biomass in kg. Adjusted R2 as printed: 0.77. Saplings only; DRC measured at 5 cm above ground, sapling DRC range 1.1-4.1 cm. Branch biomass includes foliage.. Fitted on dry-site beech; the paper also gives fresh-biomass and log-transformed variants (not added)."},{"id":"chakraborty-2016-drc-stem","source":"chakraborty-2016","name":"Beech saplings on dry sites, stem with bark dry biomass from root-collar diameter (Table 2)","output":{"quantity":"stem_biomass"},"expression":"0.019 * DRC^2.199","published":{"expression":"0.019 * DRC^2.199","units":{"DRC":"cm"},"variables":{"DRC":"DRC"},"output_unit":"kg"},"taxon":{"level":"species","name":"Fagus sylvatica","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["DE","CH"],"place":"Five abandoned oak-coppice stands on dry south-facing sites, southern Germany and northern Switzerland","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":20,"method":"power function regression, biomass = a * diameter^b (dry mass)"},"evidence":[{"field":"expression","quote":"ST Dry a 0.019 b 2.199 Adj-R² 0.71 N 20","locator":"Table 2, ST Dry row"},{"field":"fit.n_trees","quote":"N 20","locator":"Table 2, ST Dry row"}],"check":[{"inputs":{"DRC":1.5},"expected":0.0463,"origin":"computed","note":"computed from the published coefficients"},{"inputs":{"DRC":2.5},"expected":0.1425,"origin":"computed","note":"computed from the published coefficients"},{"inputs":{"DRC":3.5},"expected":0.2986,"origin":"computed","note":"computed from the published coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dry biomass in kg. Adjusted R2 as printed: 0.71. Saplings only; DRC measured at 5 cm above ground, sapling DRC range 1.1-4.1 cm.. Fitted on dry-site beech; the paper also gives fresh-biomass and log-transformed variants (not added)."},{"id":"chalupova-2026-agb-exp","source":"chalupova-2026","name":"Total aboveground biomass, Pinus tecunumanii shade trees, exponential DBH+H","output":{"quantity":"agb"},"expression":"41.459422 * exp(0.059304 * D + 0.024294 * H)","published":{"expression":"41.459422 * exp(0.059304 * DBH + 0.024294 * H)","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus tecunumanii","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["PE"],"place":"San Alberto coffee plantation, Oxapampa, Pasco (1,900 m a.s.l.)","biomes":["tropical","montane"]},"stand":"agroforestry","fit":{"n_trees":22,"dbh_min_cm":9.9,"dbh_max_cm":43.8,"h_min_m":6.3,"h_max_m":38,"method":"non-linear least squares"},"evidence":[{"field":"expression","quote":"B = a·exp(b·DBH + c·H); a, b, c = 41.459422, 0.059304, 0.024294","locator":"Table 1 (form) and Table 4 (parameters)"},{"field":"fit.n_trees","quote":"A total of 22 shade trees were sampled, with diameters at breast height (DBH) ranging from 9.9 to 43.8 cm and total heights (H) from 6.3 to 38 m.","locator":"Abstract"}],"check":[{"inputs":{"D":15,"H":12},"expected":135.0714,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":30,"H":20},"expected":399.3009,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Parameters read from the HTML table pages (Table 4 gives the three parameters of each total model run together in one cell; split at six decimals, which reproduces a sensible biomass). Fitted by NLS directly on biomass, so no back-transform correction. B is dry biomass (kg). The paper reports pseudo-R2 and RMSE per model; not copied as r2. Models valid only within the calibration ranges. Table 4 pseudo-R2 0.76, RMSE 135.1 kg for the power-law; 0.75 and 137.2 kg for the exponential."},{"id":"chalupova-2026-agb-power","source":"chalupova-2026","name":"Total aboveground biomass, Pinus tecunumanii shade trees, power-law DBH+H","output":{"quantity":"agb"},"expression":"0.30282 * D^1.632483 * H^0.589319","published":{"expression":"0.30282 * DBH^1.632483 * H^0.589319","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus tecunumanii","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["PE"],"place":"San Alberto coffee plantation, Oxapampa, Pasco (1,900 m a.s.l.)","biomes":["tropical","montane"]},"stand":"agroforestry","fit":{"n_trees":22,"dbh_min_cm":9.9,"dbh_max_cm":43.8,"h_min_m":6.3,"h_max_m":38,"method":"non-linear least squares"},"evidence":[{"field":"expression","quote":"B = a·DBH^b·H^c; a, b, c = 0.30282, 1.632483, 0.589319","locator":"Table 1 (form) and Table 4 (parameters)"},{"field":"fit.n_trees","quote":"A total of 22 shade trees were sampled, with diameters at breast height (DBH) ranging from 9.9 to 43.8 cm and total heights (H) from 6.3 to 38 m.","locator":"Abstract"}],"check":[{"inputs":{"D":15,"H":12},"expected":108.922,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":30,"H":20},"expected":456.3327,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Parameters read from the HTML table pages (Table 4 gives the three parameters of each total model run together in one cell; split at six decimals, which reproduces a sensible biomass). Fitted by NLS directly on biomass, so no back-transform correction. B is dry biomass (kg). The paper reports pseudo-R2 and RMSE per model; not copied as r2. Models valid only within the calibration ranges. Table 4 pseudo-R2 0.76, RMSE 135.1 kg for the power-law; 0.75 and 137.2 kg for the exponential."},{"id":"chalupova-2026-branch","source":"chalupova-2026","name":"Branch biomass, Pinus tecunumanii shade trees, power-law DBH+H","output":{"quantity":"branch_biomass"},"expression":"0.01042973 * D^2.43366 * H^0.3763336","published":{"expression":"0.01042973 * DBH^2.43366 * H^0.3763336","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus tecunumanii","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["PE"],"place":"San Alberto coffee plantation, Oxapampa, Pasco (1,900 m a.s.l.)","biomes":["tropical","montane"]},"stand":"agroforestry","fit":{"n_trees":22,"dbh_min_cm":9.9,"dbh_max_cm":43.8,"h_min_m":6.3,"h_max_m":38,"method":"non-linear least squares"},"evidence":[{"field":"expression","quote":"B = a·DBH^b·H^c; a, b, c = 0.01042973, 2.43366, 0.3763336","locator":"Table 1 (form) and Table 6 (parameters)"},{"field":"fit.n_trees","quote":"A total of 22 shade trees were sampled, with diameters at breast height (DBH) ranging from 9.9 to 43.8 cm and total heights (H) from 6.3 to 38 m.","locator":"Abstract"}],"check":[{"inputs":{"D":15,"H":12},"expected":19.3469,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":30,"H":20},"expected":126.6792,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Parameters read from the HTML table page of Table 6 (component models, DBH+H power-law), which prints a, b and c in separate columns; Table 6 RMSE 36.1 kg, pseudo-R2 0.85 for the branch model. Fitted by NLS directly on biomass, so no back-transform correction. B is dry biomass (kg). The paper reports pseudo-R2 and RMSE per model; not copied as r2. Models valid only within the calibration ranges."},{"id":"chalupova-2026-foliage","source":"chalupova-2026","name":"Foliage biomass, Pinus tecunumanii shade trees, power-law DBH+H","output":{"quantity":"foliage_biomass"},"expression":"0.05308069 * D^2.092881 * H^(-0.1218119)","published":{"expression":"0.05308069 * DBH^2.092881 * H^(-0.1218119)","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus tecunumanii","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["PE"],"place":"San Alberto coffee plantation, Oxapampa, Pasco (1,900 m a.s.l.)","biomes":["tropical","montane"]},"stand":"agroforestry","fit":{"n_trees":22,"dbh_min_cm":9.9,"dbh_max_cm":43.8,"h_min_m":6.3,"h_max_m":38,"method":"non-linear least squares"},"evidence":[{"field":"expression","quote":"B = a·DBH^b·H^c; a, b, c = 0.05308069, 2.092881, -0.1218119","locator":"Table 1 (form) and Table 6 (parameters)"},{"field":"fit.n_trees","quote":"A total of 22 shade trees were sampled, with diameters at breast height (DBH) ranging from 9.9 to 43.8 cm and total heights (H) from 6.3 to 38 m.","locator":"Abstract"}],"check":[{"inputs":{"D":15,"H":12},"expected":11.3475,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":30,"H":20},"expected":45.4878,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Parameters read from the HTML table page of Table 6 (component models, DBH+H power-law), which prints a, b and c in separate columns; Table 6 RMSE 9.41 kg, pseudo-R2 0.87 for the foliage model. Fitted by NLS directly on biomass, so no back-transform correction. B is dry biomass (kg). The paper reports pseudo-R2 and RMSE per model; not copied as r2. Models valid only within the calibration ranges."},{"id":"chalupova-2026-stem","source":"chalupova-2026","name":"Stem biomass, Pinus tecunumanii shade trees, power-law DBH+H","output":{"quantity":"stem_biomass"},"expression":"0.44015225 * D^1.185463 * H^0.802877","published":{"expression":"0.44015225 * DBH^1.185463 * H^0.802877","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus tecunumanii","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["PE"],"place":"San Alberto coffee plantation, Oxapampa, Pasco (1,900 m a.s.l.)","biomes":["tropical","montane"]},"stand":"agroforestry","fit":{"n_trees":22,"dbh_min_cm":9.9,"dbh_max_cm":43.8,"h_min_m":6.3,"h_max_m":38,"method":"non-linear least squares"},"evidence":[{"field":"expression","quote":"B = a·DBH^b·H^c; a, b, c = 0.44015225, 1.185463, 0.802877","locator":"Table 1 (form) and Table 6 (parameters)"},{"field":"fit.n_trees","quote":"A total of 22 shade trees were sampled, with diameters at breast height (DBH) ranging from 9.9 to 43.8 cm and total heights (H) from 6.3 to 38 m.","locator":"Abstract"}],"check":[{"inputs":{"D":15,"H":12},"expected":80.2168,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":30,"H":20},"expected":274.9429,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Parameters read from the HTML table page of Table 6 (component models, DBH+H power-law), which prints a, b and c in separate columns; Table 6 RMSE 99.9 kg, pseudo-R2 0.65 for the stem model. Fitted by NLS directly on biomass, so no back-transform correction. B is dry biomass (kg). The paper reports pseudo-R2 and RMSE per model; not copied as r2. Models valid only within the calibration ranges."},{"id":"chave-2005-dry-h","source":"chave-2005","name":"Dry forest AGB with height (Model I)","output":{"quantity":"agb"},"expression":"exp(-2.187 + 0.916 * ln(rho * D^2 * H))","published":{"expression":"exp(-2.187 + 0.916 * ln(rho * D^2 * H))","units":{"D":"cm","rho":"g/cm3","H":"m"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Tropical broadleaf trees","group":"broadleaf"},"region":{"scope":"pantropical","countries":[],"place":"27 harvest sites across the tropics (America, Asia, Oceania); dry forest stands","biomes":["tropical","dryland"]},"stand":"natural","fit":{"dbh_min_cm":5,"dbh_max_cm":156,"rse":0.311,"method":"log-log regression on ρD²H by forest type (model I.3)"},"evidence":[{"field":"expression","quote":"⟨AGB⟩est = exp(−2.187 + 0.916 × ln(ρD²H)) ≡ 0.112 × (ρD²H)^0.916","locator":"Choice of the best predictive models, Dry forest stands, p. 92"},{"field":"fit.rse","quote":"Moist −3.080 – 1.007 – 1,346 0.311 0.996 913","locator":"Table 2, model I.3 row (a, b1, b2, b3, df, RSE, r2, AIC; RSE printed once for the joint dry/moist/wet fit), p. 91"},{"field":"notes","quote":"These equations already include the correction factor (Eq. 7).","locator":"Choice of the best predictive models, p. 93"},{"field":"fit.dbh_max_cm","quote":"The models proposed here are valid in the range 5–156 cm for D, and 50–1,000,000 for ρD²H.","locator":"Recommendations, p. 97"},{"field":"published.units","quote":"D should be measured in centimeter, H in meter, and ρ in grams per cubic meter. The resulting AGB estimated from the equation is then in kilograms.","locator":"Recommendations, p. 97"}],"check":[{"inputs":{"D":30,"H":25,"rho":0.6},"expected":681.68,"origin":"computed","note":"computed with python3 from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Printed equation already includes the Baskerville correction factor CF = exp(RSE²/2) (paper's Eq. 7); the paper does not print the CF value, so it is not repeated in fit.cf. RSE is the log-scale RSE of the joint fit across forest types (one value per model in the table). The paper writes 'ρ in grams per cubic meter', a misprint for g/cm³ (it defines wood specific gravity in g/cm³ in Methods). Forest types: dry = evapotranspiration exceeds rainfall more than 5 months/yr (roughly <1,500 mm/yr in lowlands); moist = 1–4-month dry season (ca. 1,500–3,500 mm/yr); wet = less than one dry month (>3,500 mm/yr, or montane cloud forest). Minus signs reconstructed from the PDF text layer, where the minus glyph is lost; intercept signs confirmed against Tables 2/4 (a + RSE²/2)."},{"id":"chave-2005-dry-noh","source":"chave-2005","name":"Dry forest AGB without height (Model II)","output":{"quantity":"agb"},"expression":"rho * exp(-0.667 + 1.784 * ln(D) + 0.207 * (ln(D))^2 - 0.0281 * (ln(D))^3)","published":{"expression":"rho * exp(-0.667 + 1.784 * ln(D) + 0.207 * (ln(D))^2 - 0.0281 * (ln(D))^3)","units":{"D":"cm","rho":"g/cm3"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Tropical broadleaf trees","group":"broadleaf"},"region":{"scope":"pantropical","countries":[],"place":"27 harvest sites across the tropics (America, Asia, Oceania); dry forest stands","biomes":["tropical","dryland"]},"stand":"natural","fit":{"dbh_min_cm":5,"dbh_max_cm":156,"rse":0.356,"method":"cubic polynomial in ln(D) plus ln(ρ) with unit coefficient (model II.3)"},"evidence":[{"field":"expression","quote":"⟨AGB⟩est = ρ × exp(−0.667 + 1.784 ln(D) + 0.207(ln(D))² − 0.0281(ln(D))³)","locator":"Choice of the best predictive models, Dry forest stands, p. 92"},{"field":"fit.rse","quote":"Moist −1.562 2.148 – 1,502 0.356 0.996 1,869","locator":"Table 4, model II.3 row (a, b, c, d, b3, df, RSE, r2, AIC; RSE printed once for the joint fit), p. 94"},{"field":"notes","quote":"These equations already include the correction factor (Eq. 7).","locator":"Choice of the best predictive models, p. 93"},{"field":"fit.dbh_max_cm","quote":"The models proposed here are valid in the range 5–156 cm for D, and 50–1,000,000 for ρD²H.","locator":"Recommendations, p. 97"},{"field":"published.units","quote":"D should be measured in centimeter, H in meter, and ρ in grams per cubic meter. The resulting AGB estimated from the equation is then in kilograms.","locator":"Recommendations, p. 97"}],"check":[{"inputs":{"D":30,"rho":0.6},"expected":482.46,"origin":"computed","note":"computed with python3 from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Printed equation already includes the Baskerville correction factor CF = exp(RSE²/2) (paper's Eq. 7); the paper does not print the CF value, so it is not repeated in fit.cf. RSE is the log-scale RSE of the joint fit across forest types (one value per model in the table). The paper writes 'ρ in grams per cubic meter', a misprint for g/cm³ (it defines wood specific gravity in g/cm³ in Methods). Forest types: dry = evapotranspiration exceeds rainfall more than 5 months/yr (roughly <1,500 mm/yr in lowlands); moist = 1–4-month dry season (ca. 1,500–3,500 mm/yr); wet = less than one dry month (>3,500 mm/yr, or montane cloud forest). Minus signs reconstructed from the PDF text layer, where the minus glyph is lost; intercept signs confirmed against Tables 2/4 (a + RSE²/2)."},{"id":"chave-2005-mangrove-noh","source":"chave-2005","name":"Moist mangrove AGB without height (Model II)","output":{"quantity":"agb"},"expression":"rho * exp(-1.349 + 1.980 * ln(D) + 0.207 * (ln(D))^2 - 0.0281 * (ln(D))^3)","published":{"expression":"rho * exp(-1.349 + 1.980 * ln(D) + 0.207 * (ln(D))^2 - 0.0281 * (ln(D))^3)","units":{"D":"cm","rho":"g/cm3"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Mangrove trees (mixed species)","group":"mangrove"},"region":{"scope":"pantropical","countries":[],"place":"27 harvest sites across the tropics (America, Asia, Oceania); moist mangrove forest stands","biomes":["tropical","mangrove"]},"stand":"natural","fit":{"dbh_min_cm":5,"dbh_max_cm":156,"rse":0.356,"method":"cubic polynomial in ln(D) plus ln(ρ) with unit coefficient (model II.3)"},"evidence":[{"field":"expression","quote":"⟨AGB⟩est = ρ × exp(−1.349 + 1.980 ln(D) + 0.207(ln(D))² − 0.0281(ln(D))³)","locator":"Choice of the best predictive models, Moist mangrove forest stands, p. 93"},{"field":"fit.rse","quote":"Moist −1.562 2.148 – 1,502 0.356 0.996 1,869","locator":"Table 4, model II.3 row (a, b, c, d, b3, df, RSE, r2, AIC; RSE printed once for the joint fit), p. 94"},{"field":"notes","quote":"These equations already include the correction factor (Eq. 7).","locator":"Choice of the best predictive models, p. 93"},{"field":"fit.dbh_max_cm","quote":"The models proposed here are valid in the range 5–156 cm for D, and 50–1,000,000 for ρD²H.","locator":"Recommendations, p. 97"},{"field":"published.units","quote":"D should be measured in centimeter, H in meter, and ρ in grams per cubic meter. The resulting AGB estimated from the equation is then in kilograms.","locator":"Recommendations, p. 97"}],"check":[{"inputs":{"D":30,"rho":0.6},"expected":475.11,"origin":"computed","note":"computed with python3 from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Printed equation already includes the Baskerville correction factor CF = exp(RSE²/2) (paper's Eq. 7); the paper does not print the CF value, so it is not repeated in fit.cf. RSE is the log-scale RSE of the joint fit across forest types (one value per model in the table). The paper writes 'ρ in grams per cubic meter', a misprint for g/cm³ (it defines wood specific gravity in g/cm³ in Methods). Forest types: dry = evapotranspiration exceeds rainfall more than 5 months/yr (roughly <1,500 mm/yr in lowlands); moist = 1–4-month dry season (ca. 1,500–3,500 mm/yr); wet = less than one dry month (>3,500 mm/yr, or montane cloud forest). Minus signs reconstructed from the PDF text layer, where the minus glyph is lost; intercept signs confirmed against Tables 2/4 (a + RSE²/2). With height, the paper gives the moist-forest Model I (0.0509 × ρD²H) for mangroves."},{"id":"chave-2005-moist-h","source":"chave-2005","name":"Moist forest AGB with height (Model I)","output":{"quantity":"agb"},"expression":"exp(-2.977 + ln(rho * D^2 * H))","published":{"expression":"exp(-2.977 + ln(rho * D^2 * H))","units":{"D":"cm","rho":"g/cm3","H":"m"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Tropical broadleaf trees","group":"broadleaf"},"region":{"scope":"pantropical","countries":[],"place":"27 harvest sites across the tropics (America, Asia, Oceania); moist forest stands","biomes":["tropical"]},"stand":"natural","fit":{"dbh_min_cm":5,"dbh_max_cm":156,"rse":0.316,"method":"log-log regression on ρD²H with slope fixed at 1 (model I.5)"},"evidence":[{"field":"expression","quote":"⟨AGB⟩est = exp(−2.977 + ln(ρD²H)) ≡ 0.0509 × ρD²H","locator":"Choice of the best predictive models, Moist forest stands, p. 92"},{"field":"fit.rse","quote":"Moist −3.027 – – – 1,349 0.316 0.989 972","locator":"Table 2, model I.5 row (RSE printed once for the joint fit), p. 91"},{"field":"notes","quote":"These equations already include the correction factor (Eq. 7).","locator":"Choice of the best predictive models, p. 93"},{"field":"fit.dbh_max_cm","quote":"The models proposed here are valid in the range 5–156 cm for D, and 50–1,000,000 for ρD²H.","locator":"Recommendations, p. 97"},{"field":"published.units","quote":"D should be measured in centimeter, H in meter, and ρ in grams per cubic meter. The resulting AGB estimated from the equation is then in kilograms.","locator":"Recommendations, p. 97"}],"check":[{"inputs":{"D":30,"H":25,"rho":0.6},"expected":687.76,"origin":"computed","note":"computed with python3 from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Printed equation already includes the Baskerville correction factor CF = exp(RSE²/2) (paper's Eq. 7); the paper does not print the CF value, so it is not repeated in fit.cf. RSE is the log-scale RSE of the joint fit across forest types (one value per model in the table). The paper writes 'ρ in grams per cubic meter', a misprint for g/cm³ (it defines wood specific gravity in g/cm³ in Methods). Forest types: dry = evapotranspiration exceeds rainfall more than 5 months/yr (roughly <1,500 mm/yr in lowlands); moist = 1–4-month dry season (ca. 1,500–3,500 mm/yr); wet = less than one dry month (>3,500 mm/yr, or montane cloud forest). Minus signs reconstructed from the PDF text layer, where the minus glyph is lost; intercept signs confirmed against Tables 2/4 (a + RSE²/2). For moist forests the authors chose model I.5 because the fitted slope was very close to 1. The paper gives the same model for moist mangrove stands."},{"id":"chave-2005-moist-noh","source":"chave-2005","name":"Moist forest AGB without height (Model II)","output":{"quantity":"agb"},"expression":"rho * exp(-1.499 + 2.148 * ln(D) + 0.207 * (ln(D))^2 - 0.0281 * (ln(D))^3)","published":{"expression":"rho * exp(-1.499 + 2.148 * ln(D) + 0.207 * (ln(D))^2 - 0.0281 * (ln(D))^3)","units":{"D":"cm","rho":"g/cm3"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Tropical broadleaf trees","group":"broadleaf"},"region":{"scope":"pantropical","countries":[],"place":"27 harvest sites across the tropics (America, Asia, Oceania); moist forest stands","biomes":["tropical"]},"stand":"natural","fit":{"dbh_min_cm":5,"dbh_max_cm":156,"rse":0.356,"method":"cubic polynomial in ln(D) plus ln(ρ) with unit coefficient (model II.3)"},"evidence":[{"field":"expression","quote":"⟨AGB⟩est = ρ × exp(−1.499 + 2.148 ln(D) + 0.207(ln(D))² − 0.0281(ln(D))³)","locator":"Choice of the best predictive models, Moist forest stands, p. 92"},{"field":"fit.rse","quote":"Moist −1.562 2.148 – 1,502 0.356 0.996 1,869","locator":"Table 4, model II.3 row (a, b, c, d, b3, df, RSE, r2, AIC; RSE printed once for the joint fit), p. 94"},{"field":"notes","quote":"These equations already include the correction factor (Eq. 7).","locator":"Choice of the best predictive models, p. 93"},{"field":"fit.dbh_max_cm","quote":"The models proposed here are valid in the range 5–156 cm for D, and 50–1,000,000 for ρD²H.","locator":"Recommendations, p. 97"},{"field":"published.units","quote":"D should be measured in centimeter, H in meter, and ρ in grams per cubic meter. The resulting AGB estimated from the equation is then in kilograms.","locator":"Recommendations, p. 97"}],"check":[{"inputs":{"D":30,"rho":0.6},"expected":724.11,"origin":"computed","note":"computed with python3 from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Printed equation already includes the Baskerville correction factor CF = exp(RSE²/2) (paper's Eq. 7); the paper does not print the CF value, so it is not repeated in fit.cf. RSE is the log-scale RSE of the joint fit across forest types (one value per model in the table). The paper writes 'ρ in grams per cubic meter', a misprint for g/cm³ (it defines wood specific gravity in g/cm³ in Methods). Forest types: dry = evapotranspiration exceeds rainfall more than 5 months/yr (roughly <1,500 mm/yr in lowlands); moist = 1–4-month dry season (ca. 1,500–3,500 mm/yr); wet = less than one dry month (>3,500 mm/yr, or montane cloud forest). Minus signs reconstructed from the PDF text layer, where the minus glyph is lost; intercept signs confirmed against Tables 2/4 (a + RSE²/2)."},{"id":"chave-2005-wet-h","source":"chave-2005","name":"Wet forest AGB with height (Model I)","output":{"quantity":"agb"},"expression":"exp(-2.557 + 0.940 * ln(rho * D^2 * H))","published":{"expression":"exp(-2.557 + 0.940 * ln(rho * D^2 * H))","units":{"D":"cm","rho":"g/cm3","H":"m"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Tropical broadleaf trees","group":"broadleaf"},"region":{"scope":"pantropical","countries":[],"place":"27 harvest sites across the tropics (America, Asia, Oceania); wet forest stands","biomes":["tropical","montane"]},"stand":"natural","fit":{"dbh_min_cm":5,"dbh_max_cm":156,"rse":0.311,"method":"log-log regression on ρD²H by forest type (model I.3)"},"evidence":[{"field":"expression","quote":"⟨AGB⟩est = exp(−2.557 + 0.940 × ln(ρD²H)) ≡ 0.0776 × (ρD²H)^0.940","locator":"Choice of the best predictive models, Wet forest stands, p. 93"},{"field":"fit.rse","quote":"Moist −3.080 – 1.007 – 1,346 0.311 0.996 913","locator":"Table 2, model I.3 row (a, b1, b2, b3, df, RSE, r2, AIC; RSE printed once for the joint dry/moist/wet fit), p. 91"},{"field":"notes","quote":"These equations already include the correction factor (Eq. 7).","locator":"Choice of the best predictive models, p. 93"},{"field":"fit.dbh_max_cm","quote":"The models proposed here are valid in the range 5–156 cm for D, and 50–1,000,000 for ρD²H.","locator":"Recommendations, p. 97"},{"field":"published.units","quote":"D should be measured in centimeter, H in meter, and ρ in grams per cubic meter. The resulting AGB estimated from the equation is then in kilograms.","locator":"Recommendations, p. 97"}],"check":[{"inputs":{"D":30,"H":25,"rho":0.6},"expected":591.59,"origin":"computed","note":"computed with python3 from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Printed equation already includes the Baskerville correction factor CF = exp(RSE²/2) (paper's Eq. 7); the paper does not print the CF value, so it is not repeated in fit.cf. RSE is the log-scale RSE of the joint fit across forest types (one value per model in the table). The paper writes 'ρ in grams per cubic meter', a misprint for g/cm³ (it defines wood specific gravity in g/cm³ in Methods). Forest types: dry = evapotranspiration exceeds rainfall more than 5 months/yr (roughly <1,500 mm/yr in lowlands); moist = 1–4-month dry season (ca. 1,500–3,500 mm/yr); wet = less than one dry month (>3,500 mm/yr, or montane cloud forest). Minus signs reconstructed from the PDF text layer, where the minus glyph is lost; intercept signs confirmed against Tables 2/4 (a + RSE²/2)."},{"id":"chave-2005-wet-noh","source":"chave-2005","name":"Wet forest AGB without height (Model II)","output":{"quantity":"agb"},"expression":"rho * exp(-1.239 + 1.980 * ln(D) + 0.207 * (ln(D))^2 - 0.0281 * (ln(D))^3)","published":{"expression":"rho * exp(-1.239 + 1.980 * ln(D) + 0.207 * (ln(D))^2 - 0.0281 * (ln(D))^3)","units":{"D":"cm","rho":"g/cm3"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Tropical broadleaf trees","group":"broadleaf"},"region":{"scope":"pantropical","countries":[],"place":"27 harvest sites across the tropics (America, Asia, Oceania); wet forest stands","biomes":["tropical","montane"]},"stand":"natural","fit":{"dbh_min_cm":5,"dbh_max_cm":156,"rse":0.356,"method":"cubic polynomial in ln(D) plus ln(ρ) with unit coefficient (model II.3)"},"evidence":[{"field":"expression","quote":"⟨AGB⟩est = ρ × exp(−1.239 + 1.980 ln(D) + 0.207(ln(D))² − 0.0281(ln(D))³)","locator":"Choice of the best predictive models, Wet forest stands, p. 93"},{"field":"fit.rse","quote":"Moist −1.562 2.148 – 1,502 0.356 0.996 1,869","locator":"Table 4, model II.3 row (a, b, c, d, b3, df, RSE, r2, AIC; RSE printed once for the joint fit), p. 94"},{"field":"notes","quote":"These equations already include the correction factor (Eq. 7).","locator":"Choice of the best predictive models, p. 93"},{"field":"fit.dbh_max_cm","quote":"The models proposed here are valid in the range 5–156 cm for D, and 50–1,000,000 for ρD²H.","locator":"Recommendations, p. 97"},{"field":"published.units","quote":"D should be measured in centimeter, H in meter, and ρ in grams per cubic meter. The resulting AGB estimated from the equation is then in kilograms.","locator":"Recommendations, p. 97"}],"check":[{"inputs":{"D":30,"rho":0.6},"expected":530.35,"origin":"computed","note":"computed with python3 from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Printed equation already includes the Baskerville correction factor CF = exp(RSE²/2) (paper's Eq. 7); the paper does not print the CF value, so it is not repeated in fit.cf. RSE is the log-scale RSE of the joint fit across forest types (one value per model in the table). The paper writes 'ρ in grams per cubic meter', a misprint for g/cm³ (it defines wood specific gravity in g/cm³ in Methods). Forest types: dry = evapotranspiration exceeds rainfall more than 5 months/yr (roughly <1,500 mm/yr in lowlands); moist = 1–4-month dry season (ca. 1,500–3,500 mm/yr); wet = less than one dry month (>3,500 mm/yr, or montane cloud forest). Minus signs reconstructed from the PDF text layer, where the minus glyph is lost; intercept signs confirmed against Tables 2/4 (a + RSE²/2). The authors warn this wet-forest model overestimated AGB at a hurricane-affected montane forest with short trees (Blue Mountains, Jamaica)."},{"id":"chave-2014-eq4","source":"chave-2014","name":"Pantropical AGB with height (Eq. 4)","output":{"quantity":"agb"},"expression":"0.0673 * (rho * D^2 * H)^0.976","published":{"expression":"0.0673 * (rho * D^2 * H)^0.976","units":{"D":"cm","H":"m","rho":"g/cm3"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Tropical trees (58 sites)","group":"broadleaf"},"region":{"scope":"pantropical","countries":[],"place":"58 harvest sites across the tropics","biomes":["tropical","subtropical","dryland"]},"stand":"natural","fit":{"n_trees":4004,"dbh_min_cm":5,"dbh_max_cm":212,"rse":0.357,"method":"log-log linear regression of AGB on ρD²H"},"evidence":[{"field":"expression","quote":"AGBest = 0.0673 × (ρD²H)^0.976","locator":"Eq. 4, p. 3182"},{"field":"fit.rse","quote":"(σ = 0.357, AIC = 3130, df = 4002)","locator":"Eq. 4, p. 3182"},{"field":"published.units","quote":"where D is in cm, H is in m, and ρ is in g cm−3","locator":"Results, p. 3182"},{"field":"fit.n_trees","quote":"4004 trees ≥ 5 cm trunk diameter","locator":"Abstract, p. 3177"},{"field":"fit.dbh_max_cm","quote":"for a total of 4004 trees with trunk diameter ranging from 5 to 212 cm","locator":"Introduction, p. 3178"}],"check":[{"inputs":{"D":30,"H":25,"rho":0.6},"expected":723.14,"origin":"computed","note":"computed with python3 from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Recommended by the authors when height is measured. The paper derives its estimator as AGBest = exp[σ²/2 + a + b ln(ρD²H)] (Eq. 2, Baskerville correction), so the printed coefficient is used as is; no further correction factor applied. The paper notes Model 4 underestimates AGB by about 20% for trees above 30 Mg. 53 undisturbed and 5 secondary-forest sites."},{"id":"chave-2014-eq5","source":"chave-2014","name":"Pantropical AGB with height, exponent fixed at 1 (Eq. 5)","output":{"quantity":"agb"},"expression":"0.0559 * (rho * D^2 * H)","published":{"expression":"0.0559 * (rho * D^2 * H)","units":{"D":"cm","H":"m","rho":"g/cm3"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Tropical trees (58 sites)","group":"broadleaf"},"region":{"scope":"pantropical","countries":[],"place":"58 harvest sites across the tropics","biomes":["tropical","subtropical","dryland"]},"stand":"natural","fit":{"n_trees":4004,"dbh_min_cm":5,"dbh_max_cm":212,"rse":0.361,"method":"log-log regression with exponent constrained to 1"},"evidence":[{"field":"expression","quote":"AGBest = 0.0559 × (ρD²H)","locator":"Eq. 5, p. 3182"},{"field":"fit.rse","quote":"(σ = 0.361, AIC = 3211, df = 4003)","locator":"Eq. 5, p. 3182"},{"field":"published.units","quote":"where D is in cm, H is in m, and ρ is in g cm−3","locator":"Results, p. 3182"},{"field":"fit.n_trees","quote":"4004 trees ≥ 5 cm trunk diameter","locator":"Abstract, p. 3177"},{"field":"fit.dbh_max_cm","quote":"for a total of 4004 trees with trunk diameter ranging from 5 to 212 cm","locator":"Introduction, p. 3178"}],"check":[{"inputs":{"D":30,"H":25,"rho":0.6},"expected":754.65,"origin":"computed","note":"computed with python3 from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Alternative to Eq. 4 with the exponent constrained to one; the authors say it 'gave a slightly poorer performance (greater σ and AIC)'. Same estimator convention as Eq. 4 (Eq. 2 includes exp(σ²/2))."},{"id":"chave-2014-eq6a","source":"chave-2014","name":"Pantropical height–diameter model with stress index E (Eq. 6a)","output":{"quantity":"height"},"expression":"exp(0.893 - E + 0.760 * ln(D) - 0.0340 * (ln(D))^2)","published":{"expression":"exp(0.893 - E + 0.760 * ln(D) - 0.0340 * (ln(D))^2)","units":{"D":"cm","E":"unitless"},"output_unit":"m"},"taxon":{"level":"mixed","name":"Tropical trees (58 sites)","group":"broadleaf"},"region":{"scope":"pantropical","countries":[],"place":"58 harvest sites across the tropics","biomes":["tropical","subtropical","dryland"]},"stand":"natural","fit":{"dbh_min_cm":5,"dbh_max_cm":212,"rse":0.243,"method":"linear regression of ln(H) on E, ln(D) and ln(D)²"},"evidence":[{"field":"expression","quote":"ln(H) = 0.893 − E + 0.760 ln(D) − 0.0340[ln(D)]²","locator":"Eq. 6a, p. 3183"},{"field":"fit.rse","quote":"(AIC = 47, RSE = 0.243, df = 3998)","locator":"Eq. 6a, p. 3183"},{"field":"notes","quote":"E = (0.178 × TS − 0.938 × CWD − 6.61 × PS) × 10⁻³","locator":"Eq. 6b, p. 3183"},{"field":"fit.dbh_max_cm","quote":"for a total of 4004 trees with trunk diameter ranging from 5 to 212 cm","locator":"Introduction, p. 3178"}],"check":[{"inputs":{"D":30,"E":0},"expected":21.86,"origin":"computed","note":"computed with python3 from the published form"},{"inputs":{"D":30,"E":0.5},"expected":13.26,"origin":"computed","note":"computed with python3 from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"E is the bioclimatic stress index of Eq. 6b (TS temperature seasonality, CWD climatic water deficit, PS precipitation seasonality); a global gridded E layer is published by the authors. The paper prints the model on the log scale and gives no back-transform correction for H; expression is the plain exp() of Eq. 6a. Fitted on the harvest dataset (df = 3998); the paper does not state n separately for this fit."},{"id":"chave-2014-eq7","source":"chave-2014","name":"Pantropical AGB without height, with stress index E (Eq. 7)","output":{"quantity":"agb"},"expression":"exp(-1.803 - 0.976 * E + 0.976 * ln(rho) + 2.673 * ln(D) - 0.0299 * (ln(D))^2)","published":{"expression":"exp(-1.803 - 0.976 * E + 0.976 * ln(rho) + 2.673 * ln(D) - 0.0299 * (ln(D))^2)","units":{"D":"cm","rho":"g/cm3","E":"unitless"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Tropical trees (58 sites)","group":"broadleaf"},"region":{"scope":"pantropical","countries":[],"place":"58 harvest sites across the tropics","biomes":["tropical","subtropical","dryland"]},"stand":"natural","fit":{"n_trees":4004,"dbh_min_cm":5,"dbh_max_cm":212,"rse":0.413,"method":"log-scale regression on E, ln(ρ), ln(D), ln(D)²"},"evidence":[{"field":"expression","quote":"AGBest = exp[−1.803 − 0.976E + 0.976 ln(ρ) + 2.673 ln(D) − 0.0299[ln(D)]²]","locator":"Eq. 7, p. 3183"},{"field":"fit.rse","quote":"(AIC = 4293, σ = 0.413, df = 3999)","locator":"Eq. 7, p. 3183"},{"field":"notes","quote":"We therefore propose Model 7 for estimating AGB in the absence of height measurements.","locator":"Results, p. 3183"},{"field":"published.units","quote":"where D is in cm, H is in m, and ρ is in g cm−3","locator":"Results, p. 3182"},{"field":"fit.n_trees","quote":"4004 trees ≥ 5 cm trunk diameter","locator":"Abstract, p. 3177"},{"field":"fit.dbh_max_cm","quote":"for a total of 4004 trees with trunk diameter ranging from 5 to 212 cm","locator":"Introduction, p. 3178"}],"check":[{"inputs":{"D":30,"rho":0.6,"E":0},"expected":628.88,"origin":"computed","note":"computed with python3 from the published form"},{"inputs":{"D":30,"rho":0.6,"E":0.5},"expected":386.04,"origin":"computed","note":"computed with python3 from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Use when height is not measured. E from Eq. 6b / the authors' gridded layer. Printed as AGBest under the paper's Eq. 2 convention (estimator includes exp(σ²/2)); no further correction applied. Note: the BIOMASS R package uses refitted coefficients for this model, not these printed ones."},{"id":"chojnacky-2014-fagaceae-deciduous","source":"chojnacky-2014","name":"North American taxa group: Fagaceae, deciduous (Table 5)","output":{"quantity":"agb"},"expression":"exp(-2.0705 + 2.441 * ln(D))","published":{"expression":"exp(-2.0705 + 2.441 * ln(dbh))","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"family","name":"Fagaceae","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"national","countries":["US"],"place":"United States (equations compiled from US and Canadian studies)","biomes":["temperate"]},"stand":"mixed","fit":{"dbh_min_cm":3,"dbh_max_cm":89,"r2":0.84,"method":"Weighted regression of ln(biomass) on ln(dbh) fitted to 606 pseudodata points generated from 77 published equations; no back-transform correction"},"evidence":[{"field":"expression","quote":"ln(biomass) = β0 + β1 ln(diameter)","locator":"Table 5 caption, p. 140"},{"field":"expression","quote":"Fagaceae, deciduous 0.57 −2.0705 2.4410 606 77 dbh 3–89 0.84","locator":"Table 5 row, p. 140"},{"field":"taxon","quote":"Quercus alba Oak, white 802 0.60 14 3 –74","locator":"Table 3, p. 137"},{"field":"fit.cf","quote":"we did not include a correction (Baskerville, 1972) for underestimation","locator":"Methods, p. 139"}],"check":[{"inputs":{"D":30},"expected":508.6819,"origin":"computed","note":"computed from the published form at dbh = 30 cm"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Deciduous oaks, beech and chestnut, including white oak (Q. alba, spg 0.60) and northern red oak (Q. rubra, spg 0.56). Median specific gravity of the group: 0.57. Diameter range is that of the pseudodata. R² is the published 'R²-statistic'."},{"id":"chojnacky-2014-hamamelidaceae","source":"chojnacky-2014","name":"North American taxa group: Hamamelidaceae (Table 5)","output":{"quantity":"agb"},"expression":"exp(-2.639 + 2.5466 * ln(D))","published":{"expression":"exp(-2.639 + 2.5466 * ln(dbh))","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"family","name":"Hamamelidaceae","family":"Hamamelidaceae","group":"broadleaf"},"region":{"scope":"national","countries":["US"],"place":"United States (equations compiled from US and Canadian studies)","biomes":["temperate"]},"stand":"mixed","fit":{"dbh_min_cm":3,"dbh_max_cm":53,"r2":0.79,"method":"Weighted regression of ln(biomass) on ln(dbh) fitted to 44 pseudodata points generated from 6 published equations; no back-transform correction"},"evidence":[{"field":"expression","quote":"ln(biomass) = β0 + β1 ln(diameter)","locator":"Table 5 caption, p. 140"},{"field":"expression","quote":"Hamamelidaceae 0.46 −2.6390 2.5466 44 6 dbh 3–53 0.79","locator":"Table 5 row, p. 140"},{"field":"taxon","quote":"Liquidambar styraciflua Sweetgum 611 0.46 6 3 –53","locator":"Table 3, p. 137"},{"field":"fit.cf","quote":"we did not include a correction (Baskerville, 1972) for underestimation","locator":"Methods, p. 139"}],"check":[{"inputs":{"D":30},"expected":412.6044,"origin":"computed","note":"computed from the published form at dbh = 30 cm"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Sweetgum (Liquidambar styraciflua) only; small pseudodata base (44 points, 6 equations). Median specific gravity of the group: 0.46. Diameter range is that of the pseudodata. R² is the published 'R²-statistic'."},{"id":"chojnacky-2014-magnoliaceae","source":"chojnacky-2014","name":"North American taxa group: Magnoliaceae (Table 5)","output":{"quantity":"agb"},"expression":"exp(-2.5497 + 2.5011 * ln(D))","published":{"expression":"exp(-2.5497 + 2.5011 * ln(dbh))","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"family","name":"Magnoliaceae","family":"Magnoliaceae","group":"broadleaf"},"region":{"scope":"national","countries":["US"],"place":"United States (equations compiled from US and Canadian studies)","biomes":["temperate"]},"stand":"mixed","fit":{"dbh_min_cm":3,"dbh_max_cm":65,"r2":0.83,"method":"Weighted regression of ln(biomass) on ln(dbh) fitted to 114 pseudodata points generated from 15 published equations; no back-transform correction"},"evidence":[{"field":"expression","quote":"ln(biomass) = β0 + β1 ln(diameter)","locator":"Table 5 caption, p. 140"},{"field":"expression","quote":"Magnoliaceae 0.40 −2.5497 2.5011 114 15 dbh 3–65 0.83","locator":"Table 5 row, p. 140"},{"field":"taxon","quote":"Liriodendron tulipifera Tulip poplar 621 0.40 13 3 –65","locator":"Table 3, p. 137"},{"field":"fit.cf","quote":"we did not include a correction (Baskerville, 1972) for underestimation","locator":"Methods, p. 139"}],"check":[{"inputs":{"D":30},"expected":386.4625,"origin":"computed","note":"computed from the published form at dbh = 30 cm"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Mostly yellow-poplar (Liriodendron tulipifera) plus magnolias. Median specific gravity of the group: 0.4. Diameter range is that of the pseudodata. R² is the published 'R²-statistic'."},{"id":"chojnacky-2014-mixed-hardwood","source":"chojnacky-2014","name":"North American taxa group: Cornaceae/Ericaceae/Lauraceae/Platanaceae/Rosaceae/Ulmaceae (Table 5)","output":{"quantity":"agb"},"expression":"exp(-2.2118 + 2.4133 * ln(D))","published":{"expression":"exp(-2.2118 + 2.4133 * ln(dbh))","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Cornaceae, Ericaceae, Lauraceae, Platanaceae, Rosaceae and Ulmaceae (mixed hardwood group)","group":"broadleaf"},"region":{"scope":"national","countries":["US"],"place":"United States (equations compiled from US and Canadian studies)","biomes":["temperate"]},"stand":"mixed","fit":{"dbh_min_cm":3,"dbh_max_cm":64,"r2":0.79,"method":"Weighted regression of ln(biomass) on ln(dbh) fitted to 231 pseudodata points generated from 46 published equations; no back-transform correction"},"evidence":[{"field":"expression","quote":"ln(biomass) = β0 + β1 ln(diameter)","locator":"Table 5 caption, p. 140"},{"field":"expression","quote":"Cornaceae/Ericaceae/Lauraceae/Platanaceae/Rosaceae/Ulmaceae 0.47 −2.2118 2.4133 231 46 dbh 3–64 0.79","locator":"Table 5 row, p. 140"},{"field":"taxon","quote":"Platanaceae Platanus occidentalis Sycamore 731 0.46 2 3 –50","locator":"Table 3, p. 136"},{"field":"fit.cf","quote":"we did not include a correction (Baskerville, 1972) for underestimation","locator":"Methods, p. 139"}],"check":[{"inputs":{"D":30},"expected":401.9427,"origin":"computed","note":"computed from the published form at dbh = 30 cm"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Mixed hardwood group; covers American sycamore (Platanus occidentalis) and black cherry (Prunus serotina, spg 0.47) among others. Median specific gravity of the group: 0.47. Diameter range is that of the pseudodata. R² is the published 'R²-statistic'."},{"id":"chojnacky-2014-pinus-spg-ge-045","source":"chojnacky-2014","name":"North American taxa group: Pinus ≥ 0.45 spg (Table 5)","output":{"quantity":"agb"},"expression":"exp(-3.0506 + 2.6465 * ln(D))","published":{"expression":"exp(-3.0506 + 2.6465 * ln(dbh))","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"genus","name":"Pinus","family":"Pinaceae","group":"conifer"},"region":{"scope":"national","countries":["US"],"place":"United States (equations compiled from US and Canadian studies)","biomes":["temperate","boreal"]},"stand":"mixed","fit":{"dbh_min_cm":3,"dbh_max_cm":56,"r2":0.83,"method":"Weighted regression of ln(biomass) on ln(dbh) fitted to 162 pseudodata points generated from 28 published equations; no back-transform correction"},"evidence":[{"field":"expression","quote":"ln(biomass) = β0 + β1 ln(diameter)","locator":"Table 5 caption, p. 140"},{"field":"expression","quote":"Pinus ≥ 0.45 spg 0.47 −3.0506 2.6465 162 28 dbh 3–56 0.83","locator":"Table 5 row, p. 140"},{"field":"taxon","quote":"P. taeda Pine, loblolly 131 0.47 19 3 – 56","locator":"Table 2, p. 135"},{"field":"fit.cf","quote":"we did not include a correction (Baskerville, 1972) for underestimation","locator":"Methods, p. 139"}],"check":[{"inputs":{"D":30},"expected":384.0101,"origin":"computed","note":"computed from the published form at dbh = 30 cm"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Southern (subsection Australes) high-specific-gravity pines, including loblolly (P. taeda, spg 0.47) and shortleaf (P. echinata, spg 0.47). Fit range only reaches 56 cm. Median specific gravity of the group: 0.47. Diameter range is that of the pseudodata. R² is the published 'R²-statistic'."},{"id":"chojnacky-2014-salicaceae-spg-ge-035","source":"chojnacky-2014","name":"North American taxa group: Salicaceae ≥ 0.35 spg (Table 5)","output":{"quantity":"agb"},"expression":"exp(-2.4441 + 2.4561 * ln(D))","published":{"expression":"exp(-2.4441 + 2.4561 * ln(dbh))","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"family","name":"Salicaceae","family":"Salicaceae","group":"broadleaf"},"region":{"scope":"national","countries":["US"],"place":"United States (equations compiled from US and Canadian studies)","biomes":["temperate","boreal"]},"stand":"mixed","fit":{"dbh_min_cm":3,"dbh_max_cm":70,"r2":0.81,"method":"Weighted regression of ln(biomass) on ln(dbh) fitted to 299 pseudodata points generated from 52 published equations; no back-transform correction"},"evidence":[{"field":"expression","quote":"ln(biomass) = β0 + β1 ln(diameter)","locator":"Table 5 caption, p. 140"},{"field":"expression","quote":"Salicaceae ≥ 0.35 spg 0.36 −2.4441 2.4561 299 52 dbh 3–70 0.81","locator":"Table 5 row, p. 140"},{"field":"taxon","quote":"P. deltoides Populus, cottonwood 742 0.37 1 3 –27","locator":"Table 3"},{"field":"fit.cf","quote":"we did not include a correction (Baskerville, 1972) for underestimation","locator":"Methods, p. 139"}],"check":[{"inputs":{"D":30},"expected":368.5517,"origin":"computed","note":"computed from the published form at dbh = 30 cm"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Aspens, eastern cottonwood (P. deltoides, spg 0.37) and willows. Median specific gravity of the group: 0.36. Diameter range is that of the pseudodata. R² is the published 'R²-statistic'."},{"id":"chojnacky-2014-salicaceae-spg-lt-035","source":"chojnacky-2014","name":"North American taxa group: Salicaceae < 0.35 spg (Table 5)","output":{"quantity":"agb"},"expression":"exp(-2.6863 + 2.4561 * ln(D))","published":{"expression":"exp(-2.6863 + 2.4561 * ln(dbh))","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"family","name":"Salicaceae","family":"Salicaceae","group":"broadleaf"},"region":{"scope":"national","countries":["US"],"place":"United States (equations compiled from US and Canadian studies)","biomes":["temperate","boreal"]},"stand":"mixed","fit":{"dbh_min_cm":3,"dbh_max_cm":53,"r2":0.81,"method":"Weighted regression of ln(biomass) on ln(dbh) fitted to 64 pseudodata points generated from 10 published equations; no back-transform correction"},"evidence":[{"field":"expression","quote":"ln(biomass) = β0 + β1 ln(diameter)","locator":"Table 5 caption, p. 140"},{"field":"expression","quote":"Salicaceae < 0.35 spg 0.31 −2.6863 2.4561 64 10 dbh 3–53 0.81","locator":"Table 5 row, p. 140"},{"field":"taxon","quote":"hybrid poplar (Populus spp.) was set at 0.34","locator":"Methods, p. 130"},{"field":"fit.cf","quote":"we did not include a correction (Baskerville, 1972) for underestimation","locator":"Methods, p. 139"}],"check":[{"inputs":{"D":30},"expected":289.2759,"origin":"computed","note":"computed from the published form at dbh = 30 cm"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Low-specific-gravity poplars (balsam poplar, black cottonwood). The authors set hybrid poplar specific gravity at 0.34, which places hybrid poplar in this group. Median specific gravity of the group: 0.31. Diameter range is that of the pseudodata. R² is the published 'R²-statistic'."},{"id":"cihak-2018-agb-d-hd","source":"cihak-2018","name":"Norway spruce, Czech Republic: Total aboveground biomass from D and H/D (Table 2)","output":{"quantity":"agb"},"expression":"exp(-2.0323 + 2.40781 * ln(D) + 0.48803 * ln(H/D)) * 1.02","published":{"expression":"exp(-2.0323 + 2.40781 * ln(D) + 0.48803 * ln(H/D)) * 1.02","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Picea abies","family":"Pinaceae","group":"conifer"},"region":{"scope":"national","countries":["CZ"],"place":"25 stands on 15 sites, Czech Republic (acidic and nutrient-medium sites)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":139,"r2":0.96,"cf":1.02,"method":"log-log linear regression with Marklund (1987) back-transformation correction factor"},"evidence":[{"field":"expression","quote":"AGB = exp(b0 + b1ln(D) + b2ln(H/D))λ; b0 = -2.0323, b1 = 2.40781, b2 = 0.48803, λ = 1.02","locator":"Table 2 and Eq. 2, p. 113 and p. 110"},{"field":"fit.n_trees","quote":"an extensive data set of 139 spruce trees collected in 25 stands on 15 sites","locator":"Abstract"}],"check":[{"inputs":{"D":10,"H":10},"expected":34.1817,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25,"H":22},"expected":291.6509,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":45,"H":30},"expected":1048.7387,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Coefficients, R2 and lambda as printed in Table 2 (lambda per Marklund 1987, Eq. 3, already multiplied in). H/D is slenderness ratio, tree height (m) over DBH (cm). Not recommended for trees with D < 7 cm. Table 2 also gives models with site index (SI) or tree age (A) and crown biomass models, not added here (no canonical variable for SI or A; crown has no output quantity)."},{"id":"cihak-2018-agb-d","source":"cihak-2018","name":"Norway spruce, Czech Republic: Total aboveground biomass from D (Table 2)","output":{"quantity":"agb"},"expression":"exp(-1.95298 + 2.35768 * ln(D)) * 0.986","published":{"expression":"exp(-1.95298 + 2.35768 * ln(D)) * 0.986","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Picea abies","family":"Pinaceae","group":"conifer"},"region":{"scope":"national","countries":["CZ"],"place":"25 stands on 15 sites, Czech Republic (acidic and nutrient-medium sites)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":139,"r2":0.95,"cf":0.986,"method":"log-log linear regression with Marklund (1987) back-transformation correction factor"},"evidence":[{"field":"expression","quote":"AGB = exp(b0 + b1ln(D))λ; b0 = -1.95298, b1 = 2.35768, λ = 0.986","locator":"Table 2 and Eq. 2, p. 113 and p. 110"},{"field":"fit.n_trees","quote":"an extensive data set of 139 spruce trees collected in 25 stands on 15 sites","locator":"Abstract"}],"check":[{"inputs":{"D":10},"expected":31.8705,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25},"expected":276.4418,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":45},"expected":1105.2348,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Coefficients, R2 and lambda as printed in Table 2 (lambda per Marklund 1987, Eq. 3, already multiplied in). H/D is slenderness ratio, tree height (m) over DBH (cm). Not recommended for trees with D < 7 cm. Table 2 also gives models with site index (SI) or tree age (A) and crown biomass models, not added here (no canonical variable for SI or A; crown has no output quantity)."},{"id":"cihak-2018-foliage-d-hd","source":"cihak-2018","name":"Norway spruce, Czech Republic: Foliage biomass from D and H/D (Table 2)","output":{"quantity":"foliage_biomass"},"expression":"exp(-1.9872 + 1.49555 * ln(D) - 0.7278 * ln(H/D)) * 1.032","published":{"expression":"exp(-1.9872 + 1.49555 * ln(D) - 0.7278 * ln(H/D)) * 1.032","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Picea abies","family":"Pinaceae","group":"conifer"},"region":{"scope":"national","countries":["CZ"],"place":"25 stands on 15 sites, Czech Republic (acidic and nutrient-medium sites)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":139,"r2":0.79,"cf":1.032,"method":"log-log linear regression with Marklund (1987) back-transformation correction factor"},"evidence":[{"field":"expression","quote":"FL = exp(b0 + b1ln(D) + b2ln(H/D))λ; b0 = -1.9872, b1 = 1.49555, b2 = -0.7278, λ = 1.032","locator":"Table 2 and Eq. 2, p. 113 and p. 110"},{"field":"fit.n_trees","quote":"an extensive data set of 139 spruce trees collected in 25 stands on 15 sites","locator":"Abstract"}],"check":[{"inputs":{"D":10,"H":10},"expected":4.4279,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25,"H":22},"expected":19.1313,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":45,"H":30},"expected":56.3989,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Coefficients, R2 and lambda as printed in Table 2 (lambda per Marklund 1987, Eq. 3, already multiplied in). H/D is slenderness ratio, tree height (m) over DBH (cm). Foliage biomass is needles/assimilation organs. Not recommended for trees with D < 7 cm. Table 2 also gives models with site index (SI) or tree age (A) and crown biomass models, not added here (no canonical variable for SI or A; crown has no output quantity)."},{"id":"cihak-2018-foliage-d","source":"cihak-2018","name":"Norway spruce, Czech Republic: Foliage biomass from D (Table 2)","output":{"quantity":"foliage_biomass"},"expression":"exp(-2.11217 + 1.57569 * ln(D)) * 1.075","published":{"expression":"exp(-2.11217 + 1.57569 * ln(D)) * 1.075","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Picea abies","family":"Pinaceae","group":"conifer"},"region":{"scope":"national","countries":["CZ"],"place":"25 stands on 15 sites, Czech Republic (acidic and nutrient-medium sites)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":139,"r2":0.82,"cf":1.075,"method":"log-log linear regression with Marklund (1987) back-transformation correction factor"},"evidence":[{"field":"expression","quote":"FL = exp(b0 + b1ln(D))λ; b0 = -2.11217, b1 = 1.57569, λ = 1.075","locator":"Table 2 and Eq. 2, p. 113 and p. 110"},{"field":"fit.n_trees","quote":"an extensive data set of 139 spruce trees collected in 25 stands on 15 sites","locator":"Abstract"}],"check":[{"inputs":{"D":10},"expected":4.8955,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25},"expected":20.7408,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":45},"expected":52.3667,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Coefficients, R2 and lambda as printed in Table 2 (lambda per Marklund 1987, Eq. 3, already multiplied in). H/D is slenderness ratio, tree height (m) over DBH (cm). Foliage biomass is needles/assimilation organs. Not recommended for trees with D < 7 cm. Table 2 also gives models with site index (SI) or tree age (A) and crown biomass models, not added here (no canonical variable for SI or A; crown has no output quantity)."},{"id":"cihak-2018-stem-d-hd","source":"cihak-2018","name":"Norway spruce, Czech Republic: Stem biomass from D and H/D (Table 2)","output":{"quantity":"stem_biomass"},"expression":"exp(-3.62155 + 2.84648 * ln(D) + 1.0886 * ln(H/D)) * 1.002","published":{"expression":"exp(-3.62155 + 2.84648 * ln(D) + 1.0886 * ln(H/D)) * 1.002","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Picea abies","family":"Pinaceae","group":"conifer"},"region":{"scope":"national","countries":["CZ"],"place":"25 stands on 15 sites, Czech Republic (acidic and nutrient-medium sites)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":139,"r2":0.96,"cf":1.002,"method":"log-log linear regression with Marklund (1987) back-transformation correction factor"},"evidence":[{"field":"expression","quote":"ST = exp(b0 + b1ln(D) + b2ln(H/D))λ; b0 = -3.62155, b1 = 2.84648, b2 = 1.0886, λ = 1.002","locator":"Table 2 and Eq. 2, p. 113 and p. 110"},{"field":"fit.n_trees","quote":"an extensive data set of 139 spruce trees collected in 25 stands on 15 sites","locator":"Abstract"}],"check":[{"inputs":{"D":10,"H":10},"expected":18.8161,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25,"H":22},"expected":222.2392,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":45,"H":30},"expected":875.3706,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Coefficients, R2 and lambda as printed in Table 2 (lambda per Marklund 1987, Eq. 3, already multiplied in). H/D is slenderness ratio, tree height (m) over DBH (cm). Stem biomass excludes the stump. Not recommended for trees with D < 7 cm. Table 2 also gives models with site index (SI) or tree age (A) and crown biomass models, not added here (no canonical variable for SI or A; crown has no output quantity)."},{"id":"cihak-2018-stem-d","source":"cihak-2018","name":"Norway spruce, Czech Republic: Stem biomass from D (Table 2)","output":{"quantity":"stem_biomass"},"expression":"exp(-3.53369 + 2.76427 * ln(D)) * 0.915","published":{"expression":"exp(-3.53369 + 2.76427 * ln(D)) * 0.915","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Picea abies","family":"Pinaceae","group":"conifer"},"region":{"scope":"national","countries":["CZ"],"place":"25 stands on 15 sites, Czech Republic (acidic and nutrient-medium sites)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":139,"r2":0.92,"cf":0.915,"method":"log-log linear regression with Marklund (1987) back-transformation correction factor"},"evidence":[{"field":"expression","quote":"ST = exp(b0 + b1ln(D))λ; b0 = -3.53369, b1 = 2.76427, λ = 0.915","locator":"Table 2 and Eq. 2, p. 113 and p. 110"},{"field":"fit.n_trees","quote":"an extensive data set of 139 spruce trees collected in 25 stands on 15 sites","locator":"Abstract"}],"check":[{"inputs":{"D":10},"expected":15.5249,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25},"expected":195.4531,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":45},"expected":992.3955,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Coefficients, R2 and lambda as printed in Table 2 (lambda per Marklund 1987, Eq. 3, already multiplied in). H/D is slenderness ratio, tree height (m) over DBH (cm). Stem biomass excludes the stump. Not recommended for trees with D < 7 cm. Table 2 also gives models with site index (SI) or tree age (A) and crown biomass models, not added here (no canonical variable for SI or A; crown has no output quantity)."},{"id":"cortes-sanchez-2019-bt-m3","source":"cortes-sanchez-2019","name":"Six Guanajuato oaks pooled, total aboveground biomass fitted directly (model 3)","output":{"quantity":"agb"},"expression":"0.074153 * D^2.423372 * H^0.174426","published":{"expression":"0.074153 * Dn^2.423372 * At^0.174426","units":{"At":"m","Dn":"cm"},"variables":{"Dn":"D","At":"H"},"output_unit":"kg"},"taxon":{"level":"genus","name":"Quercus (six species: rugosa, obtusata, sideroxyla, coccolobifolia, laurina, candicans)","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Sierra de Santa Rosa, Guanajuato (bosques de encino)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":165,"dbh_min_cm":4.8,"dbh_max_cm":48.6,"h_min_m":3.55,"h_max_m":20.6,"method":"Total biomass fitted directly (not as a sum of components)"},"evidence":[{"field":"expression","quote":"Bt = 0.074153 × Dn^2.423372 × At^0.174426","locator":"Table 6, model 3"},{"field":"fit.n_trees","quote":"Un total de 165 árboles","locator":"Methods / Table 1"}],"check":[{"inputs":{"D":17.9,"H":8.7},"expected":117.526,"origin":"computed","note":"computed from the published form (Table 6)"},{"inputs":{"D":35.5,"H":15.5},"expected":683.177,"origin":"computed","note":"computed from the published form (Table 6)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dn and At are diameter at breast height and total height (At measured after felling, stump height included). Adjusted R2 (not stored): 0.9659."},{"id":"cortes-sanchez-2019-bt-m4","source":"cortes-sanchez-2019","name":"Six Guanajuato oaks pooled, total aboveground biomass fitted directly (model 4)","output":{"quantity":"agb"},"expression":"0.057707 * (rho * D^2 * H)^0.989101","published":{"expression":"0.057707 * (rho * Dn^2 * At)^0.989101","units":{"rho":"g/cm3","At":"m","Dn":"cm"},"variables":{"Dn":"D","At":"H"},"output_unit":"kg"},"taxon":{"level":"genus","name":"Quercus (six species: rugosa, obtusata, sideroxyla, coccolobifolia, laurina, candicans)","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Sierra de Santa Rosa, Guanajuato (bosques de encino)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":165,"dbh_min_cm":4.8,"dbh_max_cm":48.6,"h_min_m":3.55,"h_max_m":20.6,"method":"Total biomass fitted directly (not as a sum of components)"},"evidence":[{"field":"expression","quote":"Bt = 0.057707 × (ρDn² × At)^0.989101","locator":"Table 6, model 4"},{"field":"fit.n_trees","quote":"Un total de 165 árboles","locator":"Methods / Table 1"}],"check":[{"inputs":{"D":17.9,"H":8.7,"rho":0.7},"expected":103.679,"origin":"computed","note":"computed from the published form (Table 6)"},{"inputs":{"D":35.5,"H":15.5,"rho":0.8},"expected":811.704,"origin":"computed","note":"computed from the published form (Table 6)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dn and At are diameter at breast height and total height (At measured after felling, stump height included). Adjusted R2 (not stored): 0.9577. Wood density rho from drying at 70 °C (g cm–3)."},{"id":"cortes-sanchez-2019-candicans-agb","source":"cortes-sanchez-2019","name":"Quercus candicans: total aboveground biomass (sum of components)","output":{"quantity":"agb"},"expression":"(exp(-4.775313) * D^1.798292 * H^1.570775) + (exp(-3.547008) * D^2.593972) + (exp(-4.752007) * D^2)","published":{"expression":"(exp(-4.775313) * Dn^1.798292 * At^1.570775) + (exp(-3.547008) * Dn^2.593972) + (exp(-4.752007) * Dn^2)","units":{"At":"m","Dn":"cm"},"variables":{"Dn":"D","At":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus candicans Née","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Sierra de Santa Rosa, Guanajuato (bosques de encino)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":30,"dbh_min_cm":6.6,"dbh_max_cm":41.6,"h_min_m":6.09,"h_max_m":16.85,"method":"Additive system of component equations fitted simultaneously (iterated seemingly unrelated regression)"},"evidence":[{"field":"expression","quote":"Bt = ΣBi","locator":"Table 9, Quercus candicans"},{"field":"expression","quote":"Bf = exp (– 4.775313) × Dn^1.798292 × At^1.570775","locator":"Table 9, Quercus candicans"},{"field":"expression","quote":"Br = exp (−3.547008) × Dn^2.593972","locator":"Table 9, Quercus candicans"},{"field":"expression","quote":"Bh = exp (−4.752007) × Dn²","locator":"Table 9, Quercus candicans"},{"field":"fit.n_trees","quote":"30","locator":"Table 1, Q. candicans"}],"check":[{"inputs":{"D":17.1,"H":9.3},"expected":94.2166,"origin":"computed","note":"computed from the published form (Table 9)"},{"inputs":{"D":31.1,"H":13.6},"expected":469.074,"origin":"computed","note":"computed from the published form (Table 9)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 1 sample size and ranges for this species. Adjusted R2 (not stored): stem 0.96, branches 0.86, foliage 0.60, total 0.93 (Table 9). Total is the sum of the component equations, as the paper defines it."},{"id":"cortes-sanchez-2019-candicans-branch","source":"cortes-sanchez-2019","name":"Quercus candicans: branch biomass","output":{"quantity":"branch_biomass"},"expression":"exp(-3.547008) * D^2.593972","published":{"expression":"exp(-3.547008) * Dn^2.593972","units":{"Dn":"cm"},"variables":{"Dn":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus candicans Née","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Sierra de Santa Rosa, Guanajuato (bosques de encino)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":30,"dbh_min_cm":6.6,"dbh_max_cm":41.6,"h_min_m":6.09,"h_max_m":16.85,"method":"Additive system of component equations fitted simultaneously (iterated seemingly unrelated regression)"},"evidence":[{"field":"expression","quote":"Br = exp (−3.547008) × Dn^2.593972","locator":"Table 9, Quercus candicans"},{"field":"fit.n_trees","quote":"30","locator":"Table 1, Q. candicans"}],"check":[{"inputs":{"D":17.1},"expected":45.4895,"origin":"computed","note":"computed from the published form (Table 9)"},{"inputs":{"D":31.1},"expected":214.651,"origin":"computed","note":"computed from the published form (Table 9)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 1 sample size and ranges for this species. Adjusted R2 (not stored): stem 0.96, branches 0.86, foliage 0.60, total 0.93 (Table 9)."},{"id":"cortes-sanchez-2019-candicans-foliage","source":"cortes-sanchez-2019","name":"Quercus candicans: foliage (twigs with leaves) biomass","output":{"quantity":"foliage_biomass"},"expression":"exp(-4.752007) * D^2","published":{"expression":"exp(-4.752007) * Dn^2","units":{"Dn":"cm"},"variables":{"Dn":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus candicans Née","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Sierra de Santa Rosa, Guanajuato (bosques de encino)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":30,"dbh_min_cm":6.6,"dbh_max_cm":41.6,"h_min_m":6.09,"h_max_m":16.85,"method":"Additive system of component equations fitted simultaneously (iterated seemingly unrelated regression)"},"evidence":[{"field":"expression","quote":"Bh = exp (−4.752007) × Dn²","locator":"Table 9, Quercus candicans"},{"field":"fit.n_trees","quote":"30","locator":"Table 1, Q. candicans"}],"check":[{"inputs":{"D":17.1},"expected":2.52477,"origin":"computed","note":"computed from the published form (Table 9)"},{"inputs":{"D":31.1},"expected":8.35123,"origin":"computed","note":"computed from the published form (Table 9)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 1 sample size and ranges for this species. Adjusted R2 (not stored): stem 0.96, branches 0.86, foliage 0.60, total 0.93 (Table 9)."},{"id":"cortes-sanchez-2019-candicans-stem","source":"cortes-sanchez-2019","name":"Quercus candicans: stem biomass","output":{"quantity":"stem_biomass"},"expression":"exp(-4.775313) * D^1.798292 * H^1.570775","published":{"expression":"exp(-4.775313) * Dn^1.798292 * At^1.570775","units":{"At":"m","Dn":"cm"},"variables":{"Dn":"D","At":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus candicans Née","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Sierra de Santa Rosa, Guanajuato (bosques de encino)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":30,"dbh_min_cm":6.6,"dbh_max_cm":41.6,"h_min_m":6.09,"h_max_m":16.85,"method":"Additive system of component equations fitted simultaneously (iterated seemingly unrelated regression)"},"evidence":[{"field":"expression","quote":"Bf = exp (– 4.775313) × Dn^1.798292 × At^1.570775","locator":"Table 9, Quercus candicans"},{"field":"fit.n_trees","quote":"30","locator":"Table 1, Q. candicans"}],"check":[{"inputs":{"D":17.1,"H":9.3},"expected":46.2023,"origin":"computed","note":"computed from the published form (Table 9)"},{"inputs":{"D":31.1,"H":13.6},"expected":246.072,"origin":"computed","note":"computed from the published form (Table 9)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 1 sample size and ranges for this species. Adjusted R2 (not stored): stem 0.96, branches 0.86, foliage 0.60, total 0.93 (Table 9)."},{"id":"cortes-sanchez-2019-coccolobifolia-agb","source":"cortes-sanchez-2019","name":"Quercus coccolobifolia: total aboveground biomass (sum of components)","output":{"quantity":"agb"},"expression":"(exp(-2.628007) * D^1.884293 * H^0.629242) + (exp(-6.885812) * (D^2 * H)^1.393789) + (exp(-1.998072) * D)","published":{"expression":"(exp(-2.628007) * Dn^1.884293 * At^0.629242) + (exp(-6.885812) * (Dn^2 * At)^1.393789) + (exp(-1.998072) * Dn)","units":{"At":"m","Dn":"cm"},"variables":{"Dn":"D","At":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus coccolobifolia Trel.","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Sierra de Santa Rosa, Guanajuato (bosques de encino)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":12,"dbh_min_cm":8.6,"dbh_max_cm":19.1,"h_min_m":5.36,"h_max_m":8.3,"method":"Additive system of component equations fitted simultaneously (iterated seemingly unrelated regression)"},"evidence":[{"field":"expression","quote":"Bt = ΣBi","locator":"Table 9, Quercus coccolobifolia"},{"field":"expression","quote":"Bf = exp (−2.628007) × Dn^1.884293 × At^0.629242","locator":"Table 9, Quercus coccolobifolia"},{"field":"expression","quote":"Br = exp (−6.885812) × (Dn² × At)^1.393789","locator":"Table 9, Quercus coccolobifolia"},{"field":"expression","quote":"Bh = exp (−1.998072) × Dn","locator":"Table 9, Quercus coccolobifolia"},{"field":"fit.n_trees","quote":"12","locator":"Table 1, Q. coccolobifolia"}],"check":[{"inputs":{"D":11.8,"H":6.2},"expected":38.0689,"origin":"computed","note":"computed from the published form (Table 9)"},{"inputs":{"D":15.9,"H":7.4},"expected":86.0235,"origin":"computed","note":"computed from the published form (Table 9)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 1 sample size and ranges for this species. Adjusted R2 (not stored): stem 0.96, branches 0.75, foliage 0.33, total 0.94 (Table 9). The paper spells the species \"Q. cocccolobifolia\" in Table 9. Total is the sum of the component equations, as the paper defines it."},{"id":"cortes-sanchez-2019-coccolobifolia-branch","source":"cortes-sanchez-2019","name":"Quercus coccolobifolia: branch biomass","output":{"quantity":"branch_biomass"},"expression":"exp(-6.885812) * (D^2 * H)^1.393789","published":{"expression":"exp(-6.885812) * (Dn^2 * At)^1.393789","units":{"At":"m","Dn":"cm"},"variables":{"Dn":"D","At":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus coccolobifolia Trel.","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Sierra de Santa Rosa, Guanajuato (bosques de encino)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":12,"dbh_min_cm":8.6,"dbh_max_cm":19.1,"h_min_m":5.36,"h_max_m":8.3,"method":"Additive system of component equations fitted simultaneously (iterated seemingly unrelated regression)"},"evidence":[{"field":"expression","quote":"Br = exp (−6.885812) × (Dn² × At)^1.393789","locator":"Table 9, Quercus coccolobifolia"},{"field":"fit.n_trees","quote":"12","locator":"Table 1, Q. coccolobifolia"}],"check":[{"inputs":{"D":11.8,"H":6.2},"expected":12.6448,"origin":"computed","note":"computed from the published form (Table 9)"},{"inputs":{"D":15.9,"H":7.4},"expected":37.1573,"origin":"computed","note":"computed from the published form (Table 9)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 1 sample size and ranges for this species. Adjusted R2 (not stored): stem 0.96, branches 0.75, foliage 0.33, total 0.94 (Table 9). The paper spells the species \"Q. cocccolobifolia\" in Table 9."},{"id":"cortes-sanchez-2019-coccolobifolia-foliage","source":"cortes-sanchez-2019","name":"Quercus coccolobifolia: foliage (twigs with leaves) biomass","output":{"quantity":"foliage_biomass"},"expression":"exp(-1.998072) * D","published":{"expression":"exp(-1.998072) * Dn","units":{"Dn":"cm"},"variables":{"Dn":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus coccolobifolia Trel.","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Sierra de Santa Rosa, Guanajuato (bosques de encino)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":12,"dbh_min_cm":8.6,"dbh_max_cm":19.1,"h_min_m":5.36,"h_max_m":8.3,"method":"Additive system of component equations fitted simultaneously (iterated seemingly unrelated regression)"},"evidence":[{"field":"expression","quote":"Bh = exp (−1.998072) × Dn","locator":"Table 9, Quercus coccolobifolia"},{"field":"fit.n_trees","quote":"12","locator":"Table 1, Q. coccolobifolia"}],"check":[{"inputs":{"D":11.8},"expected":1.60004,"origin":"computed","note":"computed from the published form (Table 9)"},{"inputs":{"D":15.9},"expected":2.15598,"origin":"computed","note":"computed from the published form (Table 9)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 1 sample size and ranges for this species. Adjusted R2 (not stored): stem 0.96, branches 0.75, foliage 0.33, total 0.94 (Table 9). The paper spells the species \"Q. cocccolobifolia\" in Table 9."},{"id":"cortes-sanchez-2019-coccolobifolia-stem","source":"cortes-sanchez-2019","name":"Quercus coccolobifolia: stem biomass","output":{"quantity":"stem_biomass"},"expression":"exp(-2.628007) * D^1.884293 * H^0.629242","published":{"expression":"exp(-2.628007) * Dn^1.884293 * At^0.629242","units":{"At":"m","Dn":"cm"},"variables":{"Dn":"D","At":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus coccolobifolia Trel.","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Sierra de Santa Rosa, Guanajuato (bosques de encino)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":12,"dbh_min_cm":8.6,"dbh_max_cm":19.1,"h_min_m":5.36,"h_max_m":8.3,"method":"Additive system of component equations fitted simultaneously (iterated seemingly unrelated regression)"},"evidence":[{"field":"expression","quote":"Bf = exp (−2.628007) × Dn^1.884293 × At^0.629242","locator":"Table 9, Quercus coccolobifolia"},{"field":"fit.n_trees","quote":"12","locator":"Table 1, Q. coccolobifolia"}],"check":[{"inputs":{"D":11.8,"H":6.2},"expected":23.8241,"origin":"computed","note":"computed from the published form (Table 9)"},{"inputs":{"D":15.9,"H":7.4},"expected":46.7103,"origin":"computed","note":"computed from the published form (Table 9)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 1 sample size and ranges for this species. Adjusted R2 (not stored): stem 0.96, branches 0.75, foliage 0.33, total 0.94 (Table 9). The paper spells the species \"Q. cocccolobifolia\" in Table 9."},{"id":"cortes-sanchez-2019-g1-agb","source":"cortes-sanchez-2019","name":"Quercus group 1 (rugosa, candicans, laurina): total aboveground biomass (sum of components)","output":{"quantity":"agb"},"expression":"(0.031052 * D^1.992101 * H^0.835385) + (0.002501 * (D^2 * H)^1.165467) + (0.005943 * D^2.2394)","published":{"expression":"(0.031052 * Dn^1.992101 * At^0.835385) + (0.002501 * (Dn^2 * At)^1.165467) + (0.005943 * Dn^2.2394)","units":{"At":"m","Dn":"cm"},"variables":{"Dn":"D","At":"H"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Quercus group 1 (Q. rugosa, Q. candicans, Q. laurina)","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Sierra de Santa Rosa, Guanajuato (bosques de encino)","biomes":["temperate"]},"stand":"natural","fit":{"dbh_min_cm":5.8,"dbh_max_cm":48.6,"h_min_m":4.35,"h_max_m":20.6,"method":"Additive system of component equations fitted simultaneously (iterated seemingly unrelated regression)"},"evidence":[{"field":"expression","quote":"Bt = ΣBi","locator":"Table 8, Grupo 1"},{"field":"expression","quote":"Bf = 0.031052 × Dn^1.992101 × At^0.835385","locator":"Table 8, Grupo 1"},{"field":"expression","quote":"Br = 0.002501 × (Dn² × At)^1.165467","locator":"Table 8, Grupo 1"},{"field":"expression","quote":"Bh = 0.005943 × Dn^2.23940","locator":"Table 8, Grupo 1"}],"check":[{"inputs":{"D":18.6,"H":9.2},"expected":101.398,"origin":"computed","note":"computed from the published form (Table 8)"},{"inputs":{"D":35.8,"H":15.7},"expected":663.32,"origin":"computed","note":"computed from the published form (Table 8)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Group sample size not stated; D and H ranges are the union of the three species' Table 1 ranges. Adjusted R2 (not stored): stem 0.98, branches 0.85, foliage 0.80, total 0.96 (Table 8). Total is the sum of the component equations, as the paper defines it."},{"id":"cortes-sanchez-2019-g1-branch","source":"cortes-sanchez-2019","name":"Quercus group 1 (rugosa, candicans, laurina): branch biomass","output":{"quantity":"branch_biomass"},"expression":"0.002501 * (D^2 * H)^1.165467","published":{"expression":"0.002501 * (Dn^2 * At)^1.165467","units":{"At":"m","Dn":"cm"},"variables":{"Dn":"D","At":"H"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Quercus group 1 (Q. rugosa, Q. candicans, Q. laurina)","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Sierra de Santa Rosa, Guanajuato (bosques de encino)","biomes":["temperate"]},"stand":"natural","fit":{"dbh_min_cm":5.8,"dbh_max_cm":48.6,"h_min_m":4.35,"h_max_m":20.6,"method":"Additive system of component equations fitted simultaneously (iterated seemingly unrelated regression)"},"evidence":[{"field":"expression","quote":"Br = 0.002501 × (Dn² × At)^1.165467","locator":"Table 8, Grupo 1"}],"check":[{"inputs":{"D":18.6,"H":9.2},"expected":30.2362,"origin":"computed","note":"computed from the published form (Table 8)"},{"inputs":{"D":35.8,"H":15.7},"expected":259.355,"origin":"computed","note":"computed from the published form (Table 8)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Group sample size not stated; D and H ranges are the union of the three species' Table 1 ranges. Adjusted R2 (not stored): stem 0.98, branches 0.85, foliage 0.80, total 0.96 (Table 8)."},{"id":"cortes-sanchez-2019-g1-foliage","source":"cortes-sanchez-2019","name":"Quercus group 1 (rugosa, candicans, laurina): foliage (twigs with leaves) biomass","output":{"quantity":"foliage_biomass"},"expression":"0.005943 * D^2.2394","published":{"expression":"0.005943 * Dn^2.2394","units":{"Dn":"cm"},"variables":{"Dn":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Quercus group 1 (Q. rugosa, Q. candicans, Q. laurina)","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Sierra de Santa Rosa, Guanajuato (bosques de encino)","biomes":["temperate"]},"stand":"natural","fit":{"dbh_min_cm":5.8,"dbh_max_cm":48.6,"h_min_m":4.35,"h_max_m":20.6,"method":"Additive system of component equations fitted simultaneously (iterated seemingly unrelated regression)"},"evidence":[{"field":"expression","quote":"Bh = 0.005943 × Dn^2.23940","locator":"Table 8, Grupo 1"}],"check":[{"inputs":{"D":18.6},"expected":4.13955,"origin":"computed","note":"computed from the published form (Table 8)"},{"inputs":{"D":35.8},"expected":17.9379,"origin":"computed","note":"computed from the published form (Table 8)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Group sample size not stated; D and H ranges are the union of the three species' Table 1 ranges. Adjusted R2 (not stored): stem 0.98, branches 0.85, foliage 0.80, total 0.96 (Table 8)."},{"id":"cortes-sanchez-2019-g1-stem","source":"cortes-sanchez-2019","name":"Quercus group 1 (rugosa, candicans, laurina): stem biomass","output":{"quantity":"stem_biomass"},"expression":"0.031052 * D^1.992101 * H^0.835385","published":{"expression":"0.031052 * Dn^1.992101 * At^0.835385","units":{"At":"m","Dn":"cm"},"variables":{"Dn":"D","At":"H"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Quercus group 1 (Q. rugosa, Q. candicans, Q. laurina)","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Sierra de Santa Rosa, Guanajuato (bosques de encino)","biomes":["temperate"]},"stand":"natural","fit":{"dbh_min_cm":5.8,"dbh_max_cm":48.6,"h_min_m":4.35,"h_max_m":20.6,"method":"Additive system of component equations fitted simultaneously (iterated seemingly unrelated regression)"},"evidence":[{"field":"expression","quote":"Bf = 0.031052 × Dn^1.992101 × At^0.835385","locator":"Table 8, Grupo 1"}],"check":[{"inputs":{"D":18.6,"H":9.2},"expected":67.0226,"origin":"computed","note":"computed from the published form (Table 8)"},{"inputs":{"D":35.8,"H":15.7},"expected":386.027,"origin":"computed","note":"computed from the published form (Table 8)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Group sample size not stated; D and H ranges are the union of the three species' Table 1 ranges. Adjusted R2 (not stored): stem 0.98, branches 0.85, foliage 0.80, total 0.96 (Table 8)."},{"id":"cortes-sanchez-2019-g2-branch","source":"cortes-sanchez-2019","name":"Quercus group 2 (obtusata, coccolobifolia, sideroxyla): branch biomass","output":{"quantity":"branch_biomass"},"expression":"exp(-5.345159) * (D^2 * H)^1.168119","published":{"expression":"exp(-5.345159) * (Dn^2 * At)^1.168119","units":{"At":"m","Dn":"cm"},"variables":{"Dn":"D","At":"H"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Quercus group 2 (Q. obtusata, Q. coccolobifolia, Q. sideroxyla)","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Sierra de Santa Rosa, Guanajuato (bosques de encino)","biomes":["temperate"]},"stand":"natural","fit":{"dbh_min_cm":4.8,"dbh_max_cm":40.5,"h_min_m":3.55,"h_max_m":15.7,"method":"Additive system of component equations fitted simultaneously (iterated seemingly unrelated regression)"},"evidence":[{"field":"expression","quote":"Br = exp (−5.345159) × (Dn² × At)^1.168119","locator":"Table 8, Grupo 2"}],"check":[{"inputs":{"D":15.5,"H":7.2},"expected":28.9062,"origin":"computed","note":"computed from the published form (Table 8)"},{"inputs":{"D":29.8,"H":12.1},"expected":244.101,"origin":"computed","note":"computed from the published form (Table 8)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Group sample size not stated; D and H ranges are the union of the three species' Table 1 ranges. Adjusted R2 (not stored): stem 0.90, branches 0.86 (Table 8). Foliage and total of this group not added (see source notes)."},{"id":"cortes-sanchez-2019-g2-stem","source":"cortes-sanchez-2019","name":"Quercus group 2 (obtusata, coccolobifolia, sideroxyla): stem biomass","output":{"quantity":"stem_biomass"},"expression":"0.072967 * D^2.087881 * H^0.32756","published":{"expression":"0.072967 * Dn^2.087881 * At^0.32756","units":{"At":"m","Dn":"cm"},"variables":{"Dn":"D","At":"H"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Quercus group 2 (Q. obtusata, Q. coccolobifolia, Q. sideroxyla)","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Sierra de Santa Rosa, Guanajuato (bosques de encino)","biomes":["temperate"]},"stand":"natural","fit":{"dbh_min_cm":4.8,"dbh_max_cm":40.5,"h_min_m":3.55,"h_max_m":15.7,"method":"Additive system of component equations fitted simultaneously (iterated seemingly unrelated regression)"},"evidence":[{"field":"expression","quote":"Bf = 0.072967 × Dn^2.087881 × At^0.32756","locator":"Table 8, Grupo 2"}],"check":[{"inputs":{"D":15.5,"H":7.2},"expected":42.5819,"origin":"computed","note":"computed from the published form (Table 8)"},{"inputs":{"D":29.8,"H":12.1},"expected":197.602,"origin":"computed","note":"computed from the published form (Table 8)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Group sample size not stated; D and H ranges are the union of the three species' Table 1 ranges. Adjusted R2 (not stored): stem 0.90, branches 0.86 (Table 8). Foliage and total of this group not added (see source notes)."},{"id":"cortes-sanchez-2019-laurina-agb","source":"cortes-sanchez-2019","name":"Quercus laurina: total aboveground biomass (sum of components)","output":{"quantity":"agb"},"expression":"(exp(-3.184629) * D^2.025824 * H^0.690906) + (exp(-6.893717) * (D^2 * H)^1.247303) + (exp(-4.816123) * D^2.174373)","published":{"expression":"(exp(-3.184629) * Dn^2.025824 * At^0.690906) + (exp(-6.893717) * (Dn^2 * At)^1.247303) + (exp(-4.816123) * Dn^2.174373)","units":{"At":"m","Dn":"cm"},"variables":{"Dn":"D","At":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus laurina Bonpl.","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Sierra de Santa Rosa, Guanajuato (bosques de encino)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":30,"dbh_min_cm":5.8,"dbh_max_cm":48.6,"h_min_m":4.35,"h_max_m":20.6,"method":"Additive system of component equations fitted simultaneously (iterated seemingly unrelated regression)"},"evidence":[{"field":"expression","quote":"Bt = ΣBi","locator":"Table 9, Quercus laurina"},{"field":"expression","quote":"Bf = exp (– 3.184629) × Dn^2.025824 × At^0.690906","locator":"Table 9, Quercus laurina"},{"field":"expression","quote":"Br = exp (– 6.893717) × (Dn² × At)^1.247303","locator":"Table 9, Quercus laurina"},{"field":"expression","quote":"Bh = exp (– 4.816123) × Dn^2.174373","locator":"Table 9, Quercus laurina"},{"field":"fit.n_trees","quote":"30","locator":"Table 1, Q. laurina"}],"check":[{"inputs":{"D":18.6,"H":9.2},"expected":99.9404,"origin":"computed","note":"computed from the published form (Table 9)"},{"inputs":{"D":35.8,"H":15.7},"expected":646.015,"origin":"computed","note":"computed from the published form (Table 9)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 1 sample size and ranges for this species. Adjusted R2 (not stored): stem 0.98, branches 0.94, foliage 0.92, total 0.98 (Table 9). Total is the sum of the component equations, as the paper defines it."},{"id":"cortes-sanchez-2019-laurina-branch","source":"cortes-sanchez-2019","name":"Quercus laurina: branch biomass","output":{"quantity":"branch_biomass"},"expression":"exp(-6.893717) * (D^2 * H)^1.247303","published":{"expression":"exp(-6.893717) * (Dn^2 * At)^1.247303","units":{"At":"m","Dn":"cm"},"variables":{"Dn":"D","At":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus laurina Bonpl.","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Sierra de Santa Rosa, Guanajuato (bosques de encino)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":30,"dbh_min_cm":5.8,"dbh_max_cm":48.6,"h_min_m":4.35,"h_max_m":20.6,"method":"Additive system of component equations fitted simultaneously (iterated seemingly unrelated regression)"},"evidence":[{"field":"expression","quote":"Br = exp (– 6.893717) × (Dn² × At)^1.247303","locator":"Table 9, Quercus laurina"},{"field":"fit.n_trees","quote":"30","locator":"Table 1, Q. laurina"}],"check":[{"inputs":{"D":18.6,"H":9.2},"expected":23.7228,"origin":"computed","note":"computed from the published form (Table 9)"},{"inputs":{"D":35.8,"H":15.7},"expected":236.631,"origin":"computed","note":"computed from the published form (Table 9)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 1 sample size and ranges for this species. Adjusted R2 (not stored): stem 0.98, branches 0.94, foliage 0.92, total 0.98 (Table 9)."},{"id":"cortes-sanchez-2019-laurina-foliage","source":"cortes-sanchez-2019","name":"Quercus laurina: foliage (twigs with leaves) biomass","output":{"quantity":"foliage_biomass"},"expression":"exp(-4.816123) * D^2.174373","published":{"expression":"exp(-4.816123) * Dn^2.174373","units":{"Dn":"cm"},"variables":{"Dn":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus laurina Bonpl.","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Sierra de Santa Rosa, Guanajuato (bosques de encino)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":30,"dbh_min_cm":5.8,"dbh_max_cm":48.6,"h_min_m":4.35,"h_max_m":20.6,"method":"Additive system of component equations fitted simultaneously (iterated seemingly unrelated regression)"},"evidence":[{"field":"expression","quote":"Bh = exp (– 4.816123) × Dn^2.174373","locator":"Table 9, Quercus laurina"},{"field":"fit.n_trees","quote":"30","locator":"Table 1, Q. laurina"}],"check":[{"inputs":{"D":18.6},"expected":4.66422,"origin":"computed","note":"computed from the published form (Table 9)"},{"inputs":{"D":35.8},"expected":19.3689,"origin":"computed","note":"computed from the published form (Table 9)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 1 sample size and ranges for this species. Adjusted R2 (not stored): stem 0.98, branches 0.94, foliage 0.92, total 0.98 (Table 9)."},{"id":"cortes-sanchez-2019-laurina-stem","source":"cortes-sanchez-2019","name":"Quercus laurina: stem biomass","output":{"quantity":"stem_biomass"},"expression":"exp(-3.184629) * D^2.025824 * H^0.690906","published":{"expression":"exp(-3.184629) * Dn^2.025824 * At^0.690906","units":{"At":"m","Dn":"cm"},"variables":{"Dn":"D","At":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus laurina Bonpl.","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Sierra de Santa Rosa, Guanajuato (bosques de encino)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":30,"dbh_min_cm":5.8,"dbh_max_cm":48.6,"h_min_m":4.35,"h_max_m":20.6,"method":"Additive system of component equations fitted simultaneously (iterated seemingly unrelated regression)"},"evidence":[{"field":"expression","quote":"Bf = exp (– 3.184629) × Dn^2.025824 × At^0.690906","locator":"Table 9, Quercus laurina"},{"field":"fit.n_trees","quote":"30","locator":"Table 1, Q. laurina"}],"check":[{"inputs":{"D":18.6,"H":9.2},"expected":71.5533,"origin":"computed","note":"computed from the published form (Table 9)"},{"inputs":{"D":35.8,"H":15.7},"expected":390.015,"origin":"computed","note":"computed from the published form (Table 9)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 1 sample size and ranges for this species. Adjusted R2 (not stored): stem 0.98, branches 0.94, foliage 0.92, total 0.98 (Table 9)."},{"id":"cortes-sanchez-2019-obtusata-agb","source":"cortes-sanchez-2019","name":"Quercus obtusata: total aboveground biomass (sum of components)","output":{"quantity":"agb"},"expression":"(exp(-3.53684) * D^2.043763 * H^0.759522) + (exp(-5.803952) * (D^2 * H)^1.224292) + (exp(-6.181035) * D^2.488617)","published":{"expression":"(exp(-3.53684) * Dn^2.043763 * At^0.759522) + (exp(-5.803952) * (Dn^2 * At)^1.224292) + (exp(-6.181035) * Dn^2.488617)","units":{"At":"m","Dn":"cm"},"variables":{"Dn":"D","At":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus obtusata Bonpl.","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Sierra de Santa Rosa, Guanajuato (bosques de encino)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":34,"dbh_min_cm":6.2,"dbh_max_cm":37.6,"h_min_m":4.85,"h_max_m":14.2,"method":"Additive system of component equations fitted simultaneously (iterated seemingly unrelated regression)"},"evidence":[{"field":"expression","quote":"Bt = ΣBi","locator":"Table 9, Quercus obtusata"},{"field":"expression","quote":"Bf = exp (– 3.53684) × Dn^2.043763 × At^0.759522","locator":"Table 9, Quercus obtusata"},{"field":"expression","quote":"Br = exp (– 5.803952) × (Dn² × At)^1.224292","locator":"Table 9, Quercus obtusata"},{"field":"expression","quote":"Bh = exp (– 6.181035) × Dn^2.488617","locator":"Table 9, Quercus obtusata"},{"field":"fit.n_trees","quote":"34","locator":"Table 1, Q. obtusata"}],"check":[{"inputs":{"D":15.6,"H":7.7},"expected":70.2062,"origin":"computed","note":"computed from the published form (Table 9)"},{"inputs":{"D":28.2,"H":11.4},"expected":389.552,"origin":"computed","note":"computed from the published form (Table 9)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 1 sample size and ranges for this species. Adjusted R2 (not stored): stem 0.86, branches 0.84, foliage 0.82, total 0.94 (Table 9). Total is the sum of the component equations, as the paper defines it."},{"id":"cortes-sanchez-2019-obtusata-branch","source":"cortes-sanchez-2019","name":"Quercus obtusata: branch biomass","output":{"quantity":"branch_biomass"},"expression":"exp(-5.803952) * (D^2 * H)^1.224292","published":{"expression":"exp(-5.803952) * (Dn^2 * At)^1.224292","units":{"At":"m","Dn":"cm"},"variables":{"Dn":"D","At":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus obtusata Bonpl.","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Sierra de Santa Rosa, Guanajuato (bosques de encino)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":34,"dbh_min_cm":6.2,"dbh_max_cm":37.6,"h_min_m":4.85,"h_max_m":14.2,"method":"Additive system of component equations fitted simultaneously (iterated seemingly unrelated regression)"},"evidence":[{"field":"expression","quote":"Br = exp (– 5.803952) × (Dn² × At)^1.224292","locator":"Table 9, Quercus obtusata"},{"field":"fit.n_trees","quote":"34","locator":"Table 1, Q. obtusata"}],"check":[{"inputs":{"D":15.6,"H":7.7},"expected":30.6313,"origin":"computed","note":"computed from the published form (Table 9)"},{"inputs":{"D":28.2,"H":11.4},"expected":211.054,"origin":"computed","note":"computed from the published form (Table 9)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 1 sample size and ranges for this species. Adjusted R2 (not stored): stem 0.86, branches 0.84, foliage 0.82, total 0.94 (Table 9)."},{"id":"cortes-sanchez-2019-obtusata-foliage","source":"cortes-sanchez-2019","name":"Quercus obtusata: foliage (twigs with leaves) biomass","output":{"quantity":"foliage_biomass"},"expression":"exp(-6.181035) * D^2.488617","published":{"expression":"exp(-6.181035) * Dn^2.488617","units":{"Dn":"cm"},"variables":{"Dn":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus obtusata Bonpl.","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Sierra de Santa Rosa, Guanajuato (bosques de encino)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":34,"dbh_min_cm":6.2,"dbh_max_cm":37.6,"h_min_m":4.85,"h_max_m":14.2,"method":"Additive system of component equations fitted simultaneously (iterated seemingly unrelated regression)"},"evidence":[{"field":"expression","quote":"Bh = exp (– 6.181035) × Dn^2.488617","locator":"Table 9, Quercus obtusata"},{"field":"fit.n_trees","quote":"34","locator":"Table 1, Q. obtusata"}],"check":[{"inputs":{"D":15.6},"expected":1.92682,"origin":"computed","note":"computed from the published form (Table 9)"},{"inputs":{"D":28.2},"expected":8.40863,"origin":"computed","note":"computed from the published form (Table 9)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 1 sample size and ranges for this species. Adjusted R2 (not stored): stem 0.86, branches 0.84, foliage 0.82, total 0.94 (Table 9)."},{"id":"cortes-sanchez-2019-obtusata-stem","source":"cortes-sanchez-2019","name":"Quercus obtusata: stem biomass","output":{"quantity":"stem_biomass"},"expression":"exp(-3.53684) * D^2.043763 * H^0.759522","published":{"expression":"exp(-3.53684) * Dn^2.043763 * At^0.759522","units":{"At":"m","Dn":"cm"},"variables":{"Dn":"D","At":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus obtusata Bonpl.","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Sierra de Santa Rosa, Guanajuato (bosques de encino)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":34,"dbh_min_cm":6.2,"dbh_max_cm":37.6,"h_min_m":4.85,"h_max_m":14.2,"method":"Additive system of component equations fitted simultaneously (iterated seemingly unrelated regression)"},"evidence":[{"field":"expression","quote":"Bf = exp (– 3.53684) × Dn^2.043763 × At^0.759522","locator":"Table 9, Quercus obtusata"},{"field":"fit.n_trees","quote":"34","locator":"Table 1, Q. obtusata"}],"check":[{"inputs":{"D":15.6,"H":7.7},"expected":37.6481,"origin":"computed","note":"computed from the published form (Table 9)"},{"inputs":{"D":28.2,"H":11.4},"expected":170.09,"origin":"computed","note":"computed from the published form (Table 9)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 1 sample size and ranges for this species. Adjusted R2 (not stored): stem 0.86, branches 0.84, foliage 0.82, total 0.94 (Table 9)."},{"id":"cortes-sanchez-2019-rugosa-branch","source":"cortes-sanchez-2019","name":"Quercus rugosa: branch biomass","output":{"quantity":"branch_biomass"},"expression":"0.57163 * D^3.049264 * H^(-1.74729)","published":{"expression":"0.57163 * Dn^3.049264 * At^(-1.74729)","units":{"At":"m","Dn":"cm"},"variables":{"Dn":"D","At":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus rugosa Née","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Sierra de Santa Rosa, Guanajuato (bosques de encino)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":26,"dbh_min_cm":7.6,"dbh_max_cm":44.5,"h_min_m":5.85,"h_max_m":17.8,"method":"Additive system of component equations fitted simultaneously (iterated seemingly unrelated regression)"},"evidence":[{"field":"expression","quote":"Br = 0.57163 × Dn^3.049264 × At^–1.74729","locator":"Table 9, Quercus rugosa"},{"field":"fit.n_trees","quote":"26","locator":"Table 1, Q. rugosa"}],"check":[{"inputs":{"D":18.7,"H":9.4},"expected":86.0913,"origin":"computed","note":"computed from the published form (Table 9)"},{"inputs":{"D":33.4,"H":14.2},"expected":245.493,"origin":"computed","note":"computed from the published form (Table 9)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 1 sample size and ranges for this species. Adjusted R2 (not stored): stem 0.98, branches 0.85 (Table 9). Foliage and total not added (see source notes)."},{"id":"cortes-sanchez-2019-rugosa-stem","source":"cortes-sanchez-2019","name":"Quercus rugosa: stem biomass","output":{"quantity":"stem_biomass"},"expression":"0.009439 * D^1.901368 * H^1.401346","published":{"expression":"0.009439 * Dn^1.901368 * At^1.401346","units":{"At":"m","Dn":"cm"},"variables":{"Dn":"D","At":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus rugosa Née","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Sierra de Santa Rosa, Guanajuato (bosques de encino)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":26,"dbh_min_cm":7.6,"dbh_max_cm":44.5,"h_min_m":5.85,"h_max_m":17.8,"method":"Additive system of component equations fitted simultaneously (iterated seemingly unrelated regression)"},"evidence":[{"field":"expression","quote":"Bf = 0.009439 × Dn^1.901368 × At^1.401346","locator":"Table 9, Quercus rugosa"},{"field":"fit.n_trees","quote":"26","locator":"Table 1, Q. rugosa"}],"check":[{"inputs":{"D":18.7,"H":9.4},"expected":57.1286,"origin":"computed","note":"computed from the published form (Table 9)"},{"inputs":{"D":33.4,"H":14.2},"expected":306.82,"origin":"computed","note":"computed from the published form (Table 9)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 1 sample size and ranges for this species. Adjusted R2 (not stored): stem 0.98, branches 0.85 (Table 9). Foliage and total not added (see source notes)."},{"id":"cortes-sanchez-2019-sideroxyla-agb","source":"cortes-sanchez-2019","name":"Quercus sideroxyla: total aboveground biomass (sum of components)","output":{"quantity":"agb"},"expression":"(exp(-2.988285) * D^1.613082 * H^1.16314) + (exp(-4.317865) * D^3.305381 * H^(-0.64785)) + (exp(-4.613824) * D^2.16245)","published":{"expression":"(exp(-2.988285) * Dn^1.613082 * At^1.16314) + (exp(-4.317865) * Dn^3.305381 * At^(-0.64785)) + (exp(-4.613824) * Dn^2.16245)","units":{"At":"m","Dn":"cm"},"variables":{"Dn":"D","At":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus sideroxyla Bonpl.","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Sierra de Santa Rosa, Guanajuato (bosques de encino)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":33,"dbh_min_cm":4.8,"dbh_max_cm":40.5,"h_min_m":3.55,"h_max_m":15.7,"method":"Additive system of component equations fitted simultaneously (iterated seemingly unrelated regression)"},"evidence":[{"field":"expression","quote":"Bt = ΣBi","locator":"Table 9, Quercus sideroxyla"},{"field":"expression","quote":"Bf = exp (– 2.988285) × Dn^1.613082 × At^1.16314","locator":"Table 9, Quercus sideroxyla"},{"field":"expression","quote":"Br = exp (– 4.317865) × Dn^3.305381 × At^–0.64785","locator":"Table 9, Quercus sideroxyla"},{"field":"expression","quote":"Bh = exp (– 4.613824) × Dn^2.16245","locator":"Table 9, Quercus sideroxyla"},{"field":"fit.n_trees","quote":"33","locator":"Table 1, Q. sideroxyla"}],"check":[{"inputs":{"D":15.5,"H":7.2},"expected":77.2616,"origin":"computed","note":"computed from the published form (Table 9)"},{"inputs":{"D":29.8,"H":12.1},"expected":431.65,"origin":"computed","note":"computed from the published form (Table 9)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 1 sample size and ranges for this species. Adjusted R2 (not stored): stem 0.97, branches 0.96, foliage 0.91, total 0.99 (Table 9). Total is the sum of the component equations, as the paper defines it."},{"id":"cortes-sanchez-2019-sideroxyla-branch","source":"cortes-sanchez-2019","name":"Quercus sideroxyla: branch biomass","output":{"quantity":"branch_biomass"},"expression":"exp(-4.317865) * D^3.305381 * H^(-0.64785)","published":{"expression":"exp(-4.317865) * Dn^3.305381 * At^(-0.64785)","units":{"At":"m","Dn":"cm"},"variables":{"Dn":"D","At":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus sideroxyla Bonpl.","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Sierra de Santa Rosa, Guanajuato (bosques de encino)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":33,"dbh_min_cm":4.8,"dbh_max_cm":40.5,"h_min_m":3.55,"h_max_m":15.7,"method":"Additive system of component equations fitted simultaneously (iterated seemingly unrelated regression)"},"evidence":[{"field":"expression","quote":"Br = exp (– 4.317865) × Dn^3.305381 × At^–0.64785","locator":"Table 9, Quercus sideroxyla"},{"field":"fit.n_trees","quote":"33","locator":"Table 1, Q. sideroxyla"}],"check":[{"inputs":{"D":15.5,"H":7.2},"expected":31.9045,"origin":"computed","note":"computed from the published form (Table 9)"},{"inputs":{"D":29.8,"H":12.1},"expected":197.76,"origin":"computed","note":"computed from the published form (Table 9)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 1 sample size and ranges for this species. Adjusted R2 (not stored): stem 0.97, branches 0.96, foliage 0.91, total 0.99 (Table 9)."},{"id":"cortes-sanchez-2019-sideroxyla-foliage","source":"cortes-sanchez-2019","name":"Quercus sideroxyla: foliage (twigs with leaves) biomass","output":{"quantity":"foliage_biomass"},"expression":"exp(-4.613824) * D^2.16245","published":{"expression":"exp(-4.613824) * Dn^2.16245","units":{"Dn":"cm"},"variables":{"Dn":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus sideroxyla Bonpl.","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Sierra de Santa Rosa, Guanajuato (bosques de encino)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":33,"dbh_min_cm":4.8,"dbh_max_cm":40.5,"h_min_m":3.55,"h_max_m":15.7,"method":"Additive system of component equations fitted simultaneously (iterated seemingly unrelated regression)"},"evidence":[{"field":"expression","quote":"Bh = exp (– 4.613824) × Dn^2.16245","locator":"Table 9, Quercus sideroxyla"},{"field":"fit.n_trees","quote":"33","locator":"Table 1, Q. sideroxyla"}],"check":[{"inputs":{"D":15.5},"expected":3.7177,"origin":"computed","note":"computed from the published form (Table 9)"},{"inputs":{"D":29.8},"expected":15.2813,"origin":"computed","note":"computed from the published form (Table 9)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 1 sample size and ranges for this species. Adjusted R2 (not stored): stem 0.97, branches 0.96, foliage 0.91, total 0.99 (Table 9)."},{"id":"cortes-sanchez-2019-sideroxyla-stem","source":"cortes-sanchez-2019","name":"Quercus sideroxyla: stem biomass","output":{"quantity":"stem_biomass"},"expression":"exp(-2.988285) * D^1.613082 * H^1.16314","published":{"expression":"exp(-2.988285) * Dn^1.613082 * At^1.16314","units":{"At":"m","Dn":"cm"},"variables":{"Dn":"D","At":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus sideroxyla Bonpl.","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Sierra de Santa Rosa, Guanajuato (bosques de encino)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":33,"dbh_min_cm":4.8,"dbh_max_cm":40.5,"h_min_m":3.55,"h_max_m":15.7,"method":"Additive system of component equations fitted simultaneously (iterated seemingly unrelated regression)"},"evidence":[{"field":"expression","quote":"Bf = exp (– 2.988285) × Dn^1.613082 × At^1.16314","locator":"Table 9, Quercus sideroxyla"},{"field":"fit.n_trees","quote":"33","locator":"Table 1, Q. sideroxyla"}],"check":[{"inputs":{"D":15.5,"H":7.2},"expected":41.6394,"origin":"computed","note":"computed from the published form (Table 9)"},{"inputs":{"D":29.8,"H":12.1},"expected":218.608,"origin":"computed","note":"computed from the published form (Table 9)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 1 sample size and ranges for this species. Adjusted R2 (not stored): stem 0.97, branches 0.96, foliage 0.91, total 0.99 (Table 9)."},{"id":"cortes-sanchez-2019-sys1-agb","source":"cortes-sanchez-2019","name":"Six Guanajuato oaks pooled, system 1 (D and H): total aboveground biomass (sum of components)","output":{"quantity":"agb"},"expression":"(0.03367 * D^1.853235 * H^0.982072) + (0.027143 * D^3.228496 * H^(-0.82824)) + (0.0059 * D^2.246321)","published":{"expression":"(0.03367 * Dn^1.853235 * At^0.982072) + (0.027143 * Dn^3.228496 * At^(-0.82824)) + (0.0059 * Dn^2.246321)","units":{"At":"m","Dn":"cm"},"variables":{"Dn":"D","At":"H"},"output_unit":"kg"},"taxon":{"level":"genus","name":"Quercus (six species: rugosa, obtusata, sideroxyla, coccolobifolia, laurina, candicans)","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Sierra de Santa Rosa, Guanajuato (bosques de encino)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":165,"dbh_min_cm":4.8,"dbh_max_cm":48.6,"h_min_m":3.55,"h_max_m":20.6,"method":"Additive system of component equations fitted simultaneously (iterated seemingly unrelated regression)"},"evidence":[{"field":"expression","quote":"Bt = ΣBi","locator":"Table 4, model 3"},{"field":"expression","quote":"Bf = 0.03367 × Dn^1.853235 × At^0.982072","locator":"Table 4, model 3"},{"field":"expression","quote":"Br = 0.027143 × Dn^3.228496 × At^–0.82824","locator":"Table 4, model 3"},{"field":"expression","quote":"Bh = 0.0059 × Dn^2.246321","locator":"Table 4, model 1"},{"field":"fit.n_trees","quote":"Un total de 165 árboles","locator":"Methods / Table 1"}],"check":[{"inputs":{"D":17.9,"H":8.7},"expected":113.128,"origin":"computed","note":"computed from the published form (Table 4)"},{"inputs":{"D":35.5,"H":15.5},"expected":672.326,"origin":"computed","note":"computed from the published form (Table 4)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dn and At are diameter at breast height and total height (At measured after felling, stump height included). Adjusted R2 (not stored): stem 0.9705, branches 0.8913, foliage 0.8086, total 0.9653 (Table 4). Total is the sum of the component equations, as the paper defines it."},{"id":"cortes-sanchez-2019-sys1-branch","source":"cortes-sanchez-2019","name":"Six Guanajuato oaks pooled, system 1 (D and H): branch biomass","output":{"quantity":"branch_biomass"},"expression":"0.027143 * D^3.228496 * H^(-0.82824)","published":{"expression":"0.027143 * Dn^3.228496 * At^(-0.82824)","units":{"At":"m","Dn":"cm"},"variables":{"Dn":"D","At":"H"},"output_unit":"kg"},"taxon":{"level":"genus","name":"Quercus (six species: rugosa, obtusata, sideroxyla, coccolobifolia, laurina, candicans)","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Sierra de Santa Rosa, Guanajuato (bosques de encino)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":165,"dbh_min_cm":4.8,"dbh_max_cm":48.6,"h_min_m":3.55,"h_max_m":20.6,"method":"Additive system of component equations fitted simultaneously (iterated seemingly unrelated regression)"},"evidence":[{"field":"expression","quote":"Br = 0.027143 × Dn^3.228496 × At^–0.82824","locator":"Table 4, model 3"},{"field":"fit.n_trees","quote":"Un total de 165 árboles","locator":"Methods / Table 1"}],"check":[{"inputs":{"D":17.9,"H":8.7},"expected":50.1581,"origin":"computed","note":"computed from the published form (Table 4)"},{"inputs":{"D":35.5,"H":15.5},"expected":283.585,"origin":"computed","note":"computed from the published form (Table 4)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dn and At are diameter at breast height and total height (At measured after felling, stump height included). Adjusted R2 (not stored): stem 0.9705, branches 0.8913, foliage 0.8086, total 0.9653 (Table 4)."},{"id":"cortes-sanchez-2019-sys1-foliage","source":"cortes-sanchez-2019","name":"Six Guanajuato oaks pooled, system 1 (D and H): foliage (twigs with leaves) biomass","output":{"quantity":"foliage_biomass"},"expression":"0.0059 * D^2.246321","published":{"expression":"0.0059 * Dn^2.246321","units":{"Dn":"cm"},"variables":{"Dn":"D"},"output_unit":"kg"},"taxon":{"level":"genus","name":"Quercus (six species: rugosa, obtusata, sideroxyla, coccolobifolia, laurina, candicans)","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Sierra de Santa Rosa, Guanajuato (bosques de encino)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":165,"dbh_min_cm":4.8,"dbh_max_cm":48.6,"h_min_m":3.55,"h_max_m":20.6,"method":"Additive system of component equations fitted simultaneously (iterated seemingly unrelated regression)"},"evidence":[{"field":"expression","quote":"Bh = 0.0059 × Dn^2.246321","locator":"Table 4, model 1"},{"field":"fit.n_trees","quote":"Un total de 165 árboles","locator":"Methods / Table 1"}],"check":[{"inputs":{"D":17.9},"expected":3.84735,"origin":"computed","note":"computed from the published form (Table 4)"},{"inputs":{"D":35.5},"expected":17.9128,"origin":"computed","note":"computed from the published form (Table 4)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dn and At are diameter at breast height and total height (At measured after felling, stump height included). Adjusted R2 (not stored): stem 0.9705, branches 0.8913, foliage 0.8086, total 0.9653 (Table 4)."},{"id":"cortes-sanchez-2019-sys1-stem","source":"cortes-sanchez-2019","name":"Six Guanajuato oaks pooled, system 1 (D and H): stem biomass","output":{"quantity":"stem_biomass"},"expression":"0.03367 * D^1.853235 * H^0.982072","published":{"expression":"0.03367 * Dn^1.853235 * At^0.982072","units":{"At":"m","Dn":"cm"},"variables":{"Dn":"D","At":"H"},"output_unit":"kg"},"taxon":{"level":"genus","name":"Quercus (six species: rugosa, obtusata, sideroxyla, coccolobifolia, laurina, candicans)","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Sierra de Santa Rosa, Guanajuato (bosques de encino)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":165,"dbh_min_cm":4.8,"dbh_max_cm":48.6,"h_min_m":3.55,"h_max_m":20.6,"method":"Additive system of component equations fitted simultaneously (iterated seemingly unrelated regression)"},"evidence":[{"field":"expression","quote":"Bf = 0.03367 × Dn^1.853235 × At^0.982072","locator":"Table 4, model 3"},{"field":"fit.n_trees","quote":"Un total de 165 árboles","locator":"Methods / Table 1"}],"check":[{"inputs":{"D":17.9,"H":8.7},"expected":59.1221,"origin":"computed","note":"computed from the published form (Table 4)"},{"inputs":{"D":35.5,"H":15.5},"expected":370.828,"origin":"computed","note":"computed from the published form (Table 4)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dn and At are diameter at breast height and total height (At measured after felling, stump height included). Adjusted R2 (not stored): stem 0.9705, branches 0.8913, foliage 0.8086, total 0.9653 (Table 4)."},{"id":"cortes-sanchez-2019-sys2-branch","source":"cortes-sanchez-2019","name":"Six Guanajuato oaks pooled, system 2 (wood density, D and H): branch biomass","output":{"quantity":"branch_biomass"},"expression":"0.486602 * (rho * D^2 * H)^0.631701","published":{"expression":"0.486602 * (rho * Dn^2 * At)^0.631701","units":{"rho":"g/cm3","At":"m","Dn":"cm"},"variables":{"Dn":"D","At":"H"},"output_unit":"kg"},"taxon":{"level":"genus","name":"Quercus (six species: rugosa, obtusata, sideroxyla, coccolobifolia, laurina, candicans)","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Sierra de Santa Rosa, Guanajuato (bosques de encino)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":165,"dbh_min_cm":4.8,"dbh_max_cm":48.6,"h_min_m":3.55,"h_max_m":20.6,"method":"Additive system of component equations fitted simultaneously (iterated seemingly unrelated regression)"},"evidence":[{"field":"expression","quote":"Br = 0.486602 × (ρDn² × At)^0.631701","locator":"Table 5, model 4"},{"field":"fit.n_trees","quote":"Un total de 165 árboles","locator":"Methods / Table 1"}],"check":[{"inputs":{"D":17.9,"H":8.7,"rho":0.7},"expected":58.3008,"origin":"computed","note":"computed from the published form (Table 5)"},{"inputs":{"D":35.5,"H":15.5,"rho":0.8},"expected":216.996,"origin":"computed","note":"computed from the published form (Table 5)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dn and At are diameter at breast height and total height (At measured after felling, stump height included). Adjusted R2 (not stored): stem 0.9255, branches 0.7462 (Table 5). Wood density rho is oven-dry mass at 70 °C over green volume per the paper (g cm–3); pooled range 0.60 to 0.83 (Table 1). Foliage and total of this system not added (see source notes)."},{"id":"cortes-sanchez-2019-sys2-stem","source":"cortes-sanchez-2019","name":"Six Guanajuato oaks pooled, system 2 (wood density, D and H): stem biomass","output":{"quantity":"stem_biomass"},"expression":"0.00676 * (rho * D^2 * H)^1.155141","published":{"expression":"0.00676 * (rho * Dn^2 * At)^1.155141","units":{"rho":"g/cm3","At":"m","Dn":"cm"},"variables":{"Dn":"D","At":"H"},"output_unit":"kg"},"taxon":{"level":"genus","name":"Quercus (six species: rugosa, obtusata, sideroxyla, coccolobifolia, laurina, candicans)","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Sierra de Santa Rosa, Guanajuato (bosques de encino)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":165,"dbh_min_cm":4.8,"dbh_max_cm":48.6,"h_min_m":3.55,"h_max_m":20.6,"method":"Additive system of component equations fitted simultaneously (iterated seemingly unrelated regression)"},"evidence":[{"field":"expression","quote":"Bf = 0.00676 × (ρDn² × At)^1.155141","locator":"Table 5, model 4"},{"field":"fit.n_trees","quote":"Un total de 165 árboles","locator":"Methods / Table 1"}],"check":[{"inputs":{"D":17.9,"H":8.7,"rho":0.7},"expected":42.7301,"origin":"computed","note":"computed from the published form (Table 5)"},{"inputs":{"D":35.5,"H":15.5,"rho":0.8},"expected":472.572,"origin":"computed","note":"computed from the published form (Table 5)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dn and At are diameter at breast height and total height (At measured after felling, stump height included). Adjusted R2 (not stored): stem 0.9255, branches 0.7462 (Table 5). Wood density rho is oven-dry mass at 70 °C over green volume per the paper (g cm–3); pooled range 0.60 to 0.83 (Table 1). Foliage and total of this system not added (see source notes)."},{"id":"coutinho-2018-branches-sur","source":"coutinho-2018","name":"Pinus caribaea branch biomass from DBH (simultaneous fit)","output":{"quantity":"branch_biomass"},"expression":"8.631 - 1.213*D + 0.054*D^2","published":{"expression":"8.631 - 1.213*DBH + 0.054*DBH^2","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus caribaea var. hondurensis","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["BR"],"place":"Experimental area of UESB, Vitória da Conquista, Bahia","biomes":["tropical","subtropical"]},"stand":"plantation","fit":{"n_trees":20,"dbh_min_cm":8.2,"dbh_max_cm":23.7,"h_min_m":6.4,"h_max_m":14.2,"r2":0.23,"method":"Simultaneous (SUR) linear regression ensuring additivity; R2 reported is adjusted R2"},"evidence":[{"field":"expression","quote":"bsbranches = β0+β1DBH+β2DBH2: 8.631, -1.213, 0.054","locator":"Table 5"},{"field":"fit.n_trees","quote":"Twenty (20) trees from the experimental area of the State University of Southwest Bahia (UESB), Vitória da Conquista, Bahia, Brazil, were measured and weighed","locator":"Abstract"},{"field":"fit.dbh_min_cm","quote":"with a minimum value of 8.20 cm and a maximum of 23.70 cm; average total height of 11.06 m, ranging from 6.40 m to 14.20 m","locator":"Section 3 (Results)"},{"field":"fit.r2","quote":"R2adj 0.23","locator":"Table 5"}],"check":[{"inputs":{"D":12},"expected":1.851,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":20},"expected":5.971,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Ten-year-old plantation, 3 m x 3 m spacing, 20 trees. Quadratic in DBH; low R2adj (0.23) and positive intercept, so poor outside the sample range. Fitted simultaneously (Table 5)."},{"id":"coutinho-2018-needles-sur","source":"coutinho-2018","name":"Pinus caribaea needle biomass from DBH and height (simultaneous fit)","output":{"quantity":"foliage_biomass"},"expression":"-1.943 + 0.160*D + 0.087*H","published":{"expression":"-1.943 + 0.160*DBH + 0.087*TH","units":{"DBH":"cm","TH":"m"},"variables":{"DBH":"D","TH":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus caribaea var. hondurensis","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["BR"],"place":"Experimental area of UESB, Vitória da Conquista, Bahia","biomes":["tropical","subtropical"]},"stand":"plantation","fit":{"n_trees":20,"dbh_min_cm":8.2,"dbh_max_cm":23.7,"h_min_m":6.4,"h_max_m":14.2,"r2":0.53,"method":"Simultaneous (SUR) linear regression ensuring additivity; R2 reported is adjusted R2"},"evidence":[{"field":"expression","quote":"bsneedles = β0+β1DBH+β2TH: -1.943, 0.160, 0.087","locator":"Table 5"},{"field":"fit.n_trees","quote":"Twenty (20) trees from the experimental area of the State University of Southwest Bahia (UESB), Vitória da Conquista, Bahia, Brazil, were measured and weighed","locator":"Abstract"},{"field":"fit.dbh_min_cm","quote":"with a minimum value of 8.20 cm and a maximum of 23.70 cm; average total height of 11.06 m, ranging from 6.40 m to 14.20 m","locator":"Section 3 (Results)"},{"field":"fit.r2","quote":"R2adj 0.53","locator":"Table 5"}],"check":[{"inputs":{"D":12,"H":9},"expected":0.76,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":20,"H":13},"expected":2.388,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Ten-year-old plantation, 3 m x 3 m spacing, 20 trees. Linear form; can go negative for small trees. Fitted simultaneously with the branch and trunk models (Table 5)."},{"id":"coutinho-2018-total-sur","source":"coutinho-2018","name":"Pinus caribaea total aboveground biomass, sum of simultaneous component models","output":{"quantity":"agb"},"expression":"-34.812 + 0.707*D + 0.054*D^2 + 1.461*H + 39.377*rho","published":{"expression":"-1.943 + 0.160*DBH + 0.087*TH + (8.631 - 1.213*DBH + 0.054*DBH^2) + (-41.5 + 1.760*DBH + 1.374*TH + 39.377*rho)","units":{"DBH":"cm","TH":"m","rho":"g/cm3"},"variables":{"DBH":"D","TH":"H","rho":"rho"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus caribaea var. hondurensis","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["BR"],"place":"Experimental area of UESB, Vitória da Conquista, Bahia","biomes":["tropical","subtropical"]},"stand":"plantation","fit":{"n_trees":20,"dbh_min_cm":8.2,"dbh_max_cm":23.7,"h_min_m":6.4,"h_max_m":14.2,"r2":0.86,"method":"Simultaneous (SUR) linear regression ensuring additivity; R2 reported is adjusted R2"},"evidence":[{"field":"expression","quote":"bstotal = bsneedles+bsbranches+bstrunk","locator":"Table 5"},{"field":"fit.n_trees","quote":"Twenty (20) trees from the experimental area of the State University of Southwest Bahia (UESB), Vitória da Conquista, Bahia, Brazil, were measured and weighed","locator":"Abstract"},{"field":"fit.dbh_min_cm","quote":"with a minimum value of 8.20 cm and a maximum of 23.70 cm; average total height of 11.06 m, ranging from 6.40 m to 14.20 m","locator":"Section 3 (Results)"},{"field":"fit.r2","quote":"R2adj 0.86","locator":"Table 5"}],"check":[{"inputs":{"D":12,"H":9,"rho":0.44},"expected":11.9229,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":20,"H":13,"rho":0.5},"expected":39.6095,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Ten-year-old plantation, 3 m x 3 m spacing, 20 trees. The paper defines the total as the sum of the three component equations and reports R2adj 0.86 and Syx% 19.93; the expression here is that sum written out, and the canonical form just collects the printed coefficients. Includes needles, branches and trunk, so nothing is excluded."},{"id":"coutinho-2018-trunk-sur","source":"coutinho-2018","name":"Pinus caribaea trunk (stem with bark) biomass from DBH, height and wood density (simultaneous fit)","output":{"quantity":"stem_biomass"},"expression":"-41.5 + 1.760*D + 1.374*H + 39.377*rho","published":{"expression":"-41.5 + 1.760*DBH + 1.374*ht + 39.377*rho","units":{"DBH":"cm","ht":"m","rho":"g/cm3"},"variables":{"DBH":"D","ht":"H","rho":"rho"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus caribaea var. hondurensis","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["BR"],"place":"Experimental area of UESB, Vitória da Conquista, Bahia","biomes":["tropical","subtropical"]},"stand":"plantation","fit":{"n_trees":20,"dbh_min_cm":8.2,"dbh_max_cm":23.7,"h_min_m":6.4,"h_max_m":14.2,"r2":0.84,"method":"Simultaneous (SUR) linear regression ensuring additivity; R2 reported is adjusted R2"},"evidence":[{"field":"expression","quote":"bstrunk = β0+β1DBH+β2ht+β3ρ: -41.5, 1.760, 1.374, 39.377","locator":"Table 5"},{"field":"fit.n_trees","quote":"Twenty (20) trees from the experimental area of the State University of Southwest Bahia (UESB), Vitória da Conquista, Bahia, Brazil, were measured and weighed","locator":"Abstract"},{"field":"fit.dbh_min_cm","quote":"with a minimum value of 8.20 cm and a maximum of 23.70 cm; average total height of 11.06 m, ranging from 6.40 m to 14.20 m","locator":"Section 3 (Results)"},{"field":"fit.r2","quote":"R2adj 0.84","locator":"Table 5"}],"check":[{"inputs":{"D":12,"H":9,"rho":0.44},"expected":9.3119,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":20,"H":13,"rho":0.5},"expected":31.2505,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Ten-year-old plantation, 3 m x 3 m spacing, 20 trees. The paper writes the height symbol as ht in this row (TH elsewhere) and gives wood density rho in g/cm3 (stand mean 0.44). Trunk is with bark. Fitted simultaneously (Table 5)."},{"id":"cuevas-2020-s2-agb","source":"cuevas-2020","name":"Pinus cembroides, additive system S2 (D and H): total aboveground biomass (sum of components)","output":{"quantity":"agb"},"expression":"(exp(-2.007449) * D^1.776093 * H^0.364976) + (exp(-5.193296) * D^2.36942 * H^1.11539) + (exp(-2.07281) * D^2.463058 * H^(-1.17492))","published":{"expression":"(exp(-2.007449) * Dn^1.776093 * H^0.364976) + (exp(-5.193296) * Dn^2.36942 * H^1.11539) + (exp(-2.07281) * Dn^2.463058 * H^(-1.17492))","units":{"H":"m","Dn":"cm"},"variables":{"Dn":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus cembroides Zucc.","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["MX"],"place":"Sombrerete, Cadereyta de Montes, Querétaro (bosque de pino, 2600 m)","biomes":["dryland"]},"stand":"natural","fit":{"n_trees":21,"dbh_min_cm":3,"dbh_max_cm":40,"h_min_m":1.2,"h_max_m":9.4,"method":"Additive nonlinear system of component equations fitted simultaneously by generalized method of moments (GMM)"},"evidence":[{"field":"expression","quote":"Bt = Bf + Br + Brh","locator":"Fig. 2d, Eq. 10"},{"field":"expression","quote":"Bf = exp(−2.0074) × Dn^1.7761 × H^0.3650; Table 1, S2 Fuste: β10 −2.007449, β11 1.776093, β13 0.364976","locator":"Fig. 2a, Table 1 (S2)"},{"field":"expression","quote":"Br = exp(−5.1933) × Dn^2.3694 × H^1.1154; Table 1, S2 Ramas: β20 −5.193296, β21 2.36942, β23 1.11539","locator":"Fig. 2b, Table 1 (S2)"},{"field":"expression","quote":"Brh = exp(−2.0728) × Dn^2.4631 × H^−1.1749; Table 1, S2 Ramillas con hojas: β30 2.07281, β31 2.463058, β33 −1.17492","locator":"Fig. 2c, Table 1 (S2)"},{"field":"fit.n_trees","quote":"un total de 21 árboles","locator":"Resumen / Resultados"}],"check":[{"inputs":{"D":14.1,"H":3.7},"expected":54.7476,"origin":"computed","note":"computed from the published form (Fig. 2 and Table 1 coefficients)"},{"inputs":{"D":28.9,"H":6.9},"expected":297.074,"origin":"computed","note":"computed from the published form (Fig. 2 and Table 1 coefficients)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"System S2 (Eq. 7-10, B = exp[β0] × Dn^β1 × H^β2) fitted by GMM. Table 1 labels the H exponents β13, β23, β33 (read as β12, β22, β32). Table 1 prints the twig-and-leaf intercept β30 as 2.07281 (no minus) while Fig. 2c prints exp(−2.0728); the negative sign is used because the positive one gives hundreds of times the observed biomass. Adjusted R2 (not stored): stem 0.9704, branches 0.9476, twigs with leaves 0.9294, total 0.9802. Total is the sum of the component equations, as the paper defines it."},{"id":"cuevas-2020-s2-branch","source":"cuevas-2020","name":"Pinus cembroides, additive system S2 (D and H): branch biomass","output":{"quantity":"branch_biomass"},"expression":"exp(-5.193296) * D^2.36942 * H^1.11539","published":{"expression":"exp(-5.193296) * Dn^2.36942 * H^1.11539","units":{"H":"m","Dn":"cm"},"variables":{"Dn":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus cembroides Zucc.","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["MX"],"place":"Sombrerete, Cadereyta de Montes, Querétaro (bosque de pino, 2600 m)","biomes":["dryland"]},"stand":"natural","fit":{"n_trees":21,"dbh_min_cm":3,"dbh_max_cm":40,"h_min_m":1.2,"h_max_m":9.4,"method":"Additive nonlinear system of component equations fitted simultaneously by generalized method of moments (GMM)"},"evidence":[{"field":"expression","quote":"Br = exp(−5.1933) × Dn^2.3694 × H^1.1154; Table 1, S2 Ramas: β20 −5.193296, β21 2.36942, β23 1.11539","locator":"Fig. 2b, Table 1 (S2)"},{"field":"fit.n_trees","quote":"un total de 21 árboles","locator":"Resumen / Resultados"}],"check":[{"inputs":{"D":14.1,"H":3.7},"expected":12.6279,"origin":"computed","note":"computed from the published form (Fig. 2 and Table 1 coefficients)"},{"inputs":{"D":28.9,"H":6.9},"expected":138.581,"origin":"computed","note":"computed from the published form (Fig. 2 and Table 1 coefficients)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"System S2 (Eq. 7-10, B = exp[β0] × Dn^β1 × H^β2) fitted by GMM. Table 1 labels the H exponents β13, β23, β33 (read as β12, β22, β32). Table 1 prints the twig-and-leaf intercept β30 as 2.07281 (no minus) while Fig. 2c prints exp(−2.0728); the negative sign is used because the positive one gives hundreds of times the observed biomass. Adjusted R2 (not stored): stem 0.9704, branches 0.9476, twigs with leaves 0.9294, total 0.9802."},{"id":"cuevas-2020-s2-foliage","source":"cuevas-2020","name":"Pinus cembroides, additive system S2 (D and H): foliage (twigs with leaves) biomass","output":{"quantity":"foliage_biomass"},"expression":"exp(-2.07281) * D^2.463058 * H^(-1.17492)","published":{"expression":"exp(-2.07281) * Dn^2.463058 * H^(-1.17492)","units":{"H":"m","Dn":"cm"},"variables":{"Dn":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus cembroides Zucc.","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["MX"],"place":"Sombrerete, Cadereyta de Montes, Querétaro (bosque de pino, 2600 m)","biomes":["dryland"]},"stand":"natural","fit":{"n_trees":21,"dbh_min_cm":3,"dbh_max_cm":40,"h_min_m":1.2,"h_max_m":9.4,"method":"Additive nonlinear system of component equations fitted simultaneously by generalized method of moments (GMM)"},"evidence":[{"field":"expression","quote":"Brh = exp(−2.0728) × Dn^2.4631 × H^−1.1749; Table 1, S2 Ramillas con hojas: β30 2.07281, β31 2.463058, β33 −1.17492","locator":"Fig. 2c, Table 1 (S2)"},{"field":"fit.n_trees","quote":"un total de 21 árboles","locator":"Resumen / Resultados"}],"check":[{"inputs":{"D":14.1,"H":3.7},"expected":18.3144,"origin":"computed","note":"computed from the published form (Fig. 2 and Table 1 coefficients)"},{"inputs":{"D":28.9,"H":6.9},"expected":51.5805,"origin":"computed","note":"computed from the published form (Fig. 2 and Table 1 coefficients)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"System S2 (Eq. 7-10, B = exp[β0] × Dn^β1 × H^β2) fitted by GMM. Table 1 labels the H exponents β13, β23, β33 (read as β12, β22, β32). Table 1 prints the twig-and-leaf intercept β30 as 2.07281 (no minus) while Fig. 2c prints exp(−2.0728); the negative sign is used because the positive one gives hundreds of times the observed biomass. Adjusted R2 (not stored): stem 0.9704, branches 0.9476, twigs with leaves 0.9294, total 0.9802."},{"id":"cuevas-2020-s2-stem","source":"cuevas-2020","name":"Pinus cembroides, additive system S2 (D and H): stem biomass","output":{"quantity":"stem_biomass"},"expression":"exp(-2.007449) * D^1.776093 * H^0.364976","published":{"expression":"exp(-2.007449) * Dn^1.776093 * H^0.364976","units":{"H":"m","Dn":"cm"},"variables":{"Dn":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus cembroides Zucc.","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["MX"],"place":"Sombrerete, Cadereyta de Montes, Querétaro (bosque de pino, 2600 m)","biomes":["dryland"]},"stand":"natural","fit":{"n_trees":21,"dbh_min_cm":3,"dbh_max_cm":40,"h_min_m":1.2,"h_max_m":9.4,"method":"Additive nonlinear system of component equations fitted simultaneously by generalized method of moments (GMM)"},"evidence":[{"field":"expression","quote":"Bf = exp(−2.0074) × Dn^1.7761 × H^0.3650; Table 1, S2 Fuste: β10 −2.007449, β11 1.776093, β13 0.364976","locator":"Fig. 2a, Table 1 (S2)"},{"field":"fit.n_trees","quote":"un total de 21 árboles","locator":"Resumen / Resultados"}],"check":[{"inputs":{"D":14.1,"H":3.7},"expected":23.8054,"origin":"computed","note":"computed from the published form (Fig. 2 and Table 1 coefficients)"},{"inputs":{"D":28.9,"H":6.9},"expected":106.912,"origin":"computed","note":"computed from the published form (Fig. 2 and Table 1 coefficients)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"System S2 (Eq. 7-10, B = exp[β0] × Dn^β1 × H^β2) fitted by GMM. Table 1 labels the H exponents β13, β23, β33 (read as β12, β22, β32). Table 1 prints the twig-and-leaf intercept β30 as 2.07281 (no minus) while Fig. 2c prints exp(−2.0728); the negative sign is used because the positive one gives hundreds of times the observed biomass. Adjusted R2 (not stored): stem 0.9704, branches 0.9476, twigs with leaves 0.9294, total 0.9802."},{"id":"cuevas-2022-s1-agb","source":"cuevas-2022","name":"Piscidia piscipula, additive system S1 (D and H, Eq. 3-6): total aboveground biomass (sum of components)","output":{"quantity":"agb"},"expression":"(exp(-5.03971 + 1.6905 * ln(D) + 1.736484 * ln(H))) + (exp(-3.90699 + 2.239099 * ln(D) + 0.486697 * ln(H))) + (exp(-3.85536 + 1.166141 * ln(D) + 0.912641 * ln(H)))","published":{"expression":"(exp(-5.03971 + 1.6905 * ln(Dn) + 1.736484 * ln(AT))) + (exp(-3.90699 + 2.239099 * ln(Dn) + 0.486697 * ln(AT))) + (exp(-3.85536 + 1.166141 * ln(Dn) + 0.912641 * ln(AT)))","units":{"AT":"m","Dn":"cm"},"variables":{"Dn":"D","AT":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Piscidia piscipula (L.) Sarg.","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Escárcega, Campeche (selva mediana subperennifolia)","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":17,"dbh_min_cm":5.7,"dbh_max_cm":55,"h_min_m":8.12,"h_max_m":21,"method":"Additive nonlinear system of component equations fitted simultaneously by generalized method of moments (GMM)"},"evidence":[{"field":"expression","quote":"Bt = Bf + Br + Brh (6)","locator":"Eq. 6"},{"field":"expression","quote":"Bf = e^[−β10+β11 ln(Dn)+β12 ln(AT)] + ε1 (3); Table 2, S1 Fuste: β10 5.03971, β11 1.6905, β12 1.736484","locator":"Eq. 3, Table 2 (S1)"},{"field":"expression","quote":"Br = e^[−β20+β21 ln(Dn)+β22 ln(AT)] + ε2 (4); Table 2, S1 Ramas: β20 3.90699, β21 2.239099, β22 0.486697","locator":"Eq. 4, Table 2 (S1)"},{"field":"expression","quote":"Brh = e^[−β30+β31 ln(Dn)+β32 ln(AT)] + ε3 (5); Table 2, S1 Ramillas con hojas: β30 3.85536, β31 1.166141, β32 0.912641","locator":"Eq. 5, Table 2 (S1)"},{"field":"fit.n_trees","quote":"destructivo de 17 individuos","locator":"Resumen / Table 1"}],"check":[{"inputs":{"D":20.5,"H":12},"expected":145.156,"origin":"computed","note":"computed from the published form (Table 2 coefficients, intercept with the printed minus sign)"},{"inputs":{"D":40.2,"H":17.1},"expected":795.461,"origin":"computed","note":"computed from the published form (Table 2 coefficients, intercept with the printed minus sign)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"The paper prints the intercept as a positive estimate and the model with a minus sign in front of it (e^[−β0 + ...]); applied that way. Adjusted R2 (not stored): stem 0.9911, branches 0.9789, twigs with leaves 0.8957, total 0.9919 (Table 3). Dn and AT are the paper's diameter at breast height and total height. Total is the sum of the component equations, as the paper defines it."},{"id":"cuevas-2022-s1-branch","source":"cuevas-2022","name":"Piscidia piscipula, additive system S1 (D and H, Eq. 3-6): branch biomass","output":{"quantity":"branch_biomass"},"expression":"exp(-3.90699 + 2.239099 * ln(D) + 0.486697 * ln(H))","published":{"expression":"exp(-3.90699 + 2.239099 * ln(Dn) + 0.486697 * ln(AT))","units":{"AT":"m","Dn":"cm"},"variables":{"Dn":"D","AT":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Piscidia piscipula (L.) Sarg.","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Escárcega, Campeche (selva mediana subperennifolia)","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":17,"dbh_min_cm":5.7,"dbh_max_cm":55,"h_min_m":8.12,"h_max_m":21,"method":"Additive nonlinear system of component equations fitted simultaneously by generalized method of moments (GMM)"},"evidence":[{"field":"expression","quote":"Br = e^[−β20+β21 ln(Dn)+β22 ln(AT)] + ε2 (4); Table 2, S1 Ramas: β20 3.90699, β21 2.239099, β22 0.486697","locator":"Eq. 4, Table 2 (S1)"},{"field":"fit.n_trees","quote":"destructivo de 17 individuos","locator":"Resumen / Table 1"}],"check":[{"inputs":{"D":20.5,"H":12},"expected":58.2904,"origin":"computed","note":"computed from the published form (Table 2 coefficients, intercept with the printed minus sign)"},{"inputs":{"D":40.2,"H":17.1},"expected":312.847,"origin":"computed","note":"computed from the published form (Table 2 coefficients, intercept with the printed minus sign)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"The paper prints the intercept as a positive estimate and the model with a minus sign in front of it (e^[−β0 + ...]); applied that way. Adjusted R2 (not stored): stem 0.9911, branches 0.9789, twigs with leaves 0.8957, total 0.9919 (Table 3). Dn and AT are the paper's diameter at breast height and total height."},{"id":"cuevas-2022-s1-foliage","source":"cuevas-2022","name":"Piscidia piscipula, additive system S1 (D and H, Eq. 3-6): foliage (twigs with leaves) biomass","output":{"quantity":"foliage_biomass"},"expression":"exp(-3.85536 + 1.166141 * ln(D) + 0.912641 * ln(H))","published":{"expression":"exp(-3.85536 + 1.166141 * ln(Dn) + 0.912641 * ln(AT))","units":{"AT":"m","Dn":"cm"},"variables":{"Dn":"D","AT":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Piscidia piscipula (L.) Sarg.","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Escárcega, Campeche (selva mediana subperennifolia)","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":17,"dbh_min_cm":5.7,"dbh_max_cm":55,"h_min_m":8.12,"h_max_m":21,"method":"Additive nonlinear system of component equations fitted simultaneously by generalized method of moments (GMM)"},"evidence":[{"field":"expression","quote":"Brh = e^[−β30+β31 ln(Dn)+β32 ln(AT)] + ε3 (5); Table 2, S1 Ramillas con hojas: β30 3.85536, β31 1.166141, β32 0.912641","locator":"Eq. 5, Table 2 (S1)"},{"field":"fit.n_trees","quote":"destructivo de 17 individuos","locator":"Resumen / Table 1"}],"check":[{"inputs":{"D":20.5,"H":12},"expected":6.92203,"origin":"computed","note":"computed from the published form (Table 2 coefficients, intercept with the printed minus sign)"},{"inputs":{"D":40.2,"H":17.1},"expected":20.9737,"origin":"computed","note":"computed from the published form (Table 2 coefficients, intercept with the printed minus sign)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"The paper prints the intercept as a positive estimate and the model with a minus sign in front of it (e^[−β0 + ...]); applied that way. Adjusted R2 (not stored): stem 0.9911, branches 0.9789, twigs with leaves 0.8957, total 0.9919 (Table 3). Dn and AT are the paper's diameter at breast height and total height."},{"id":"cuevas-2022-s1-stem","source":"cuevas-2022","name":"Piscidia piscipula, additive system S1 (D and H, Eq. 3-6): stem biomass","output":{"quantity":"stem_biomass"},"expression":"exp(-5.03971 + 1.6905 * ln(D) + 1.736484 * ln(H))","published":{"expression":"exp(-5.03971 + 1.6905 * ln(Dn) + 1.736484 * ln(AT))","units":{"AT":"m","Dn":"cm"},"variables":{"Dn":"D","AT":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Piscidia piscipula (L.) Sarg.","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Escárcega, Campeche (selva mediana subperennifolia)","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":17,"dbh_min_cm":5.7,"dbh_max_cm":55,"h_min_m":8.12,"h_max_m":21,"method":"Additive nonlinear system of component equations fitted simultaneously by generalized method of moments (GMM)"},"evidence":[{"field":"expression","quote":"Bf = e^[−β10+β11 ln(Dn)+β12 ln(AT)] + ε1 (3); Table 2, S1 Fuste: β10 5.03971, β11 1.6905, β12 1.736484","locator":"Eq. 3, Table 2 (S1)"},{"field":"fit.n_trees","quote":"destructivo de 17 individuos","locator":"Resumen / Table 1"}],"check":[{"inputs":{"D":20.5,"H":12},"expected":79.9434,"origin":"computed","note":"computed from the published form (Table 2 coefficients, intercept with the printed minus sign)"},{"inputs":{"D":40.2,"H":17.1},"expected":461.641,"origin":"computed","note":"computed from the published form (Table 2 coefficients, intercept with the printed minus sign)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"The paper prints the intercept as a positive estimate and the model with a minus sign in front of it (e^[−β0 + ...]); applied that way. Adjusted R2 (not stored): stem 0.9911, branches 0.9789, twigs with leaves 0.8957, total 0.9919 (Table 3). Dn and AT are the paper's diameter at breast height and total height."},{"id":"cuevas-2022-s2-agb","source":"cuevas-2022","name":"Piscidia piscipula, additive system S2 (D²H, Eq. 7-10): total aboveground biomass (sum of components)","output":{"quantity":"agb"},"expression":"(exp(-3.45213 + 0.943879 * ln(D^2 * H))) + (exp(-4.00219 + 0.950832 * ln(D^2 * H))) + (exp(-5.14483 + 0.790513 * ln(D^2 * H)))","published":{"expression":"(exp(-3.45213 + 0.943879 * ln(Dn^2 * AT))) + (exp(-4.00219 + 0.950832 * ln(Dn^2 * AT))) + (exp(-5.14483 + 0.790513 * ln(Dn^2 * AT)))","units":{"AT":"m","Dn":"cm"},"variables":{"Dn":"D","AT":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Piscidia piscipula (L.) Sarg.","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Escárcega, Campeche (selva mediana subperennifolia)","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":17,"dbh_min_cm":5.7,"dbh_max_cm":55,"h_min_m":8.12,"h_max_m":21,"method":"Additive nonlinear system of component equations fitted simultaneously by generalized method of moments (GMM)"},"evidence":[{"field":"expression","quote":"Bt = Σ e^[−βi0+βi1 ln(Dn² AT)] + ε4 (10)","locator":"Eq. 10"},{"field":"expression","quote":"Bf = e^[−β10+β11 ln(Dn² AT)] + ε1 (7); Table 2, S2 Fuste: β10 3.45213, β11 0.943879","locator":"Eq. 7, Table 2 (S2)"},{"field":"expression","quote":"Br = e^[−β20+β21 ln(Dn² AT)] + ε2 (8); Table 2, S2 Ramas: β20 4.00219, β21 0.950832","locator":"Eq. 8, Table 2 (S2)"},{"field":"expression","quote":"Brh = e^[−β30+β31 ln(Dn² AT)] + ε3 (9); Table 2, S2 Ramillas con hojas: β30 5.14483, β31 0.790513","locator":"Eq. 9, Table 2 (S2)"},{"field":"fit.n_trees","quote":"destructivo de 17 individuos","locator":"Resumen / Table 1"}],"check":[{"inputs":{"D":20.5,"H":12},"expected":164.536,"origin":"computed","note":"computed from the published form (Table 2 coefficients, intercept with the printed minus sign)"},{"inputs":{"D":40.2,"H":17.1},"expected":817.475,"origin":"computed","note":"computed from the published form (Table 2 coefficients, intercept with the printed minus sign)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"The paper prints the intercept as a positive estimate and the model with a minus sign in front of it (e^[−β0 + ...]); applied that way. Adjusted R2 (not stored): stem 0.9821, branches 0.9769, twigs with leaves 0.8419, total 0.9931 (Table 3). Dn and AT are the paper's diameter at breast height and total height. Total is the sum of the component equations, as the paper defines it."},{"id":"cuevas-2022-s2-branch","source":"cuevas-2022","name":"Piscidia piscipula, additive system S2 (D²H, Eq. 7-10): branch biomass","output":{"quantity":"branch_biomass"},"expression":"exp(-4.00219 + 0.950832 * ln(D^2 * H))","published":{"expression":"exp(-4.00219 + 0.950832 * ln(Dn^2 * AT))","units":{"AT":"m","Dn":"cm"},"variables":{"Dn":"D","AT":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Piscidia piscipula (L.) Sarg.","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Escárcega, Campeche (selva mediana subperennifolia)","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":17,"dbh_min_cm":5.7,"dbh_max_cm":55,"h_min_m":8.12,"h_max_m":21,"method":"Additive nonlinear system of component equations fitted simultaneously by generalized method of moments (GMM)"},"evidence":[{"field":"expression","quote":"Br = e^[−β20+β21 ln(Dn² AT)] + ε2 (8); Table 2, S2 Ramas: β20 4.00219, β21 0.950832","locator":"Eq. 8, Table 2 (S2)"},{"field":"fit.n_trees","quote":"destructivo de 17 individuos","locator":"Resumen / Table 1"}],"check":[{"inputs":{"D":20.5,"H":12},"expected":60.6047,"origin":"computed","note":"computed from the published form (Table 2 coefficients, intercept with the printed minus sign)"},{"inputs":{"D":40.2,"H":17.1},"expected":305.451,"origin":"computed","note":"computed from the published form (Table 2 coefficients, intercept with the printed minus sign)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"The paper prints the intercept as a positive estimate and the model with a minus sign in front of it (e^[−β0 + ...]); applied that way. Adjusted R2 (not stored): stem 0.9821, branches 0.9769, twigs with leaves 0.8419, total 0.9931 (Table 3). Dn and AT are the paper's diameter at breast height and total height."},{"id":"cuevas-2022-s2-foliage","source":"cuevas-2022","name":"Piscidia piscipula, additive system S2 (D²H, Eq. 7-10): foliage (twigs with leaves) biomass","output":{"quantity":"foliage_biomass"},"expression":"exp(-5.14483 + 0.790513 * ln(D^2 * H))","published":{"expression":"exp(-5.14483 + 0.790513 * ln(Dn^2 * AT))","units":{"AT":"m","Dn":"cm"},"variables":{"Dn":"D","AT":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Piscidia piscipula (L.) Sarg.","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Escárcega, Campeche (selva mediana subperennifolia)","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":17,"dbh_min_cm":5.7,"dbh_max_cm":55,"h_min_m":8.12,"h_max_m":21,"method":"Additive nonlinear system of component equations fitted simultaneously by generalized method of moments (GMM)"},"evidence":[{"field":"expression","quote":"Brh = e^[−β30+β31 ln(Dn² AT)] + ε3 (9); Table 2, S2 Ramillas con hojas: β30 5.14483, β31 0.790513","locator":"Eq. 9, Table 2 (S2)"},{"field":"fit.n_trees","quote":"destructivo de 17 individuos","locator":"Resumen / Table 1"}],"check":[{"inputs":{"D":20.5,"H":12},"expected":4.92779,"origin":"computed","note":"computed from the published form (Table 2 coefficients, intercept with the printed minus sign)"},{"inputs":{"D":40.2,"H":17.1},"expected":18.9082,"origin":"computed","note":"computed from the published form (Table 2 coefficients, intercept with the printed minus sign)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"The paper prints the intercept as a positive estimate and the model with a minus sign in front of it (e^[−β0 + ...]); applied that way. Adjusted R2 (not stored): stem 0.9821, branches 0.9769, twigs with leaves 0.8419, total 0.9931 (Table 3). Dn and AT are the paper's diameter at breast height and total height."},{"id":"cuevas-2022-s2-stem","source":"cuevas-2022","name":"Piscidia piscipula, additive system S2 (D²H, Eq. 7-10): stem biomass","output":{"quantity":"stem_biomass"},"expression":"exp(-3.45213 + 0.943879 * ln(D^2 * H))","published":{"expression":"exp(-3.45213 + 0.943879 * ln(Dn^2 * AT))","units":{"AT":"m","Dn":"cm"},"variables":{"Dn":"D","AT":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Piscidia piscipula (L.) Sarg.","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Escárcega, Campeche (selva mediana subperennifolia)","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":17,"dbh_min_cm":5.7,"dbh_max_cm":55,"h_min_m":8.12,"h_max_m":21,"method":"Additive nonlinear system of component equations fitted simultaneously by generalized method of moments (GMM)"},"evidence":[{"field":"expression","quote":"Bf = e^[−β10+β11 ln(Dn² AT)] + ε1 (7); Table 2, S2 Fuste: β10 3.45213, β11 0.943879","locator":"Eq. 7, Table 2 (S2)"},{"field":"fit.n_trees","quote":"destructivo de 17 individuos","locator":"Resumen / Table 1"}],"check":[{"inputs":{"D":20.5,"H":12},"expected":99.0032,"origin":"computed","note":"computed from the published form (Table 2 coefficients, intercept with the printed minus sign)"},{"inputs":{"D":40.2,"H":17.1},"expected":493.116,"origin":"computed","note":"computed from the published form (Table 2 coefficients, intercept with the printed minus sign)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"The paper prints the intercept as a positive estimate and the model with a minus sign in front of it (e^[−β0 + ...]); applied that way. Adjusted R2 (not stored): stem 0.9821, branches 0.9769, twigs with leaves 0.8419, total 0.9931 (Table 3). Dn and AT are the paper's diameter at breast height and total height."},{"id":"cunliffe-2020-esd-dry","source":"cunliffe-2020","name":"Oneseed juniper AGB from equivalent stem diameter (dry field measurement)","output":{"quantity":"agb"},"expression":"0.005 * DRC^3.038","published":{"expression":"0.005 * ESDDry^3.038","units":{"ESDDry":"cm"},"variables":{"ESDDry":"DRC"},"output_unit":"kg"},"taxon":{"level":"species","name":"Juniperus monosperma","family":"Cupressaceae","group":"conifer"},"region":{"scope":"site","countries":["US"],"place":"central New Mexico (34.429N, 105.861W)","biomes":["dryland"]},"stand":"natural","fit":{"n_trees":15,"dbh_min_cm":3.3,"dbh_max_cm":47.2,"method":"power model, nonlinear least squares (Gauss-Newton)"},"evidence":[{"field":"expression","quote":"ESDDry (cm) Y = a * Xb 0.005 (0.007) 3.038 (0.352) 38.55 15","locator":"Table 2"},{"field":"fit.dbh","quote":"ESDDry 3.3 47.2","locator":"Table 1 (min, max, N=15)"}],"check":[{"inputs":{"DRC":10},"expected":5.4572,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"DRC":20},"expected":44.8228,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"DRC":40},"expected":368.1529,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"The predictor is ESD, the equivalent root-collar diameter: square root of the sum of squared root-collar diameters (DRC) of all stems of the individual, bark included. Mapped to canonical DRC (equal to the DRC for a single-stem tree). AGB includes wood and leaf and twig tissue, in kg dry mass. The coefficient a is printed to only three decimals, so predictions for small trees are coarse. Range fields hold the ESD range, not DBH."},{"id":"cunliffe-2020-esd-wet","source":"cunliffe-2020","name":"Oneseed juniper AGB from equivalent stem diameter (wet field measurement)","output":{"quantity":"agb"},"expression":"0.002 * DRC^3.207","published":{"expression":"0.002 * ESDWet^3.207","units":{"ESDWet":"cm"},"variables":{"ESDWet":"DRC"},"output_unit":"kg"},"taxon":{"level":"species","name":"Juniperus monosperma","family":"Cupressaceae","group":"conifer"},"region":{"scope":"site","countries":["US"],"place":"central New Mexico (34.429N, 105.861W)","biomes":["dryland"]},"stand":"natural","fit":{"n_trees":15,"dbh_min_cm":5.2,"dbh_max_cm":48.5,"method":"power model, nonlinear least squares (Gauss-Newton)"},"evidence":[{"field":"expression","quote":"ESDWet (cm) Y = a * Xb 0.002 (0.004) 3.207 (0.425) 41.86 15","locator":"Table 2"},{"field":"fit.dbh","quote":"ESDWet 5.2 48.5","locator":"Table 1 (min, max, N=15)"}],"check":[{"inputs":{"DRC":10},"expected":3.2213,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"DRC":20},"expected":29.7463,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"DRC":40},"expected":274.6859,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"The predictor is ESD, the equivalent root-collar diameter: square root of the sum of squared root-collar diameters (DRC) of all stems of the individual, bark included. Mapped to canonical DRC (equal to the DRC for a single-stem tree). AGB includes wood and leaf and twig tissue, in kg dry mass. The coefficient a is printed to only three decimals, so predictions for small trees are coarse. Range fields hold the ESD range, not DBH."},{"id":"cunliffe-2020-hmax","source":"cunliffe-2020","name":"Oneseed juniper AGB from maximum canopy height","output":{"quantity":"agb"},"expression":"0.773 * H^4.347","published":{"expression":"0.773 * HMax^4.347","units":{"HMax":"m"},"variables":{"HMax":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Juniperus monosperma","family":"Cupressaceae","group":"conifer"},"region":{"scope":"site","countries":["US"],"place":"central New Mexico (34.429N, 105.861W)","biomes":["dryland"]},"stand":"natural","fit":{"n_trees":18,"method":"power model, nonlinear least squares (Gauss-Newton)"},"evidence":[{"field":"expression","quote":"HMax (m) Y = a * Xb 0.773 (0.587) 4.347 (0.520) 37.18 18","locator":"Table 2"},{"field":"fit.n_trees","quote":"The 18 trees harvested","locator":"Results"}],"check":[{"inputs":{"H":2},"expected":15.731,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"H":4},"expected":320.1358,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"H":5.5},"expected":1278.0155,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"HMax is the maximum canopy height of the tree, taken as total height H. Trees in the study were 0.62 to 5.83 m (Table 1, all 20 measured trees, so not given as a fit range). The canopy-area equations in Table 2 have no canonical input and are not included."},{"id":"da-silva-2015-ma-d2hrho","source":"da-silva-2015","name":"Euterpe precatoria aboveground mass from D2Hrho","output":{"quantity":"agb"},"expression":"0.167 * (D^2 * Hstem * rho)^0.883","published":{"expression":"0.167 * (D^2 * H * rho)^0.883","units":{"D":"cm","H":"m","rho":"g/cm3"},"variables":{"H":"Hstem"},"output_unit":"kg"},"taxon":{"level":"species","name":"Euterpe precatoria","family":"Arecaceae","group":"palm"},"region":{"scope":"site","countries":["BR"],"place":"Terra-firme forest at the INPA forest-management field station, ~60 km NW of Manaus, Amazonas","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":20,"dbh_min_cm":3.9,"dbh_max_cm":12.7,"h_min_m":2.3,"h_max_m":16.4,"method":"Power function fitted on ln-ln by standardized major axis (SMA)"},"evidence":[{"field":"expression","quote":"Ma = 0.167 × (D2Hρ) 0.883","locator":"Table 2, row \"The present study\""},{"field":"fit.n_trees","quote":"We harvested twenty palms","locator":"Abstract"},{"field":"fit.dbh_min_cm","quote":"D ranged from 3.9–12.7 cm and H ranged from 2.3–16.4 m","locator":"Section 2.3"}],"check":[{"inputs":{"D":8,"rho":0.4,"Hstem":10},"expected":22.346,"origin":"computed","note":"computed from the published form (Table 2)"},{"inputs":{"D":12,"rho":0.5,"Hstem":15},"expected":79.658,"origin":"computed","note":"computed from the published form (Table 2)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"H is stem height from the stem base to the tip of the meristem (palm, fronds not included), mapped to canonical H. rho is the measured stem specific gravity (oven-dry mass / green volume), which the authors found rises with size, so applying this to unmeasured palms needs a rho estimate. Dry mass (fresh mass converted with component water content, dried at 65 C). SMA fit, no correction factor stated. Recommended: best predictor for Ma (adjusted R2 0.983 in Table 1). Table 2 prints the coefficients as 0.167 and 0.883; Table 1 gives ln g = -1.79 and h = 0.88 for the same relation. Palm height is measured from stem base to the meristem tip, fronds excluded; mapped to Hstem (closest canonical variable), not total height."},{"id":"da-silva-2015-ms-d2hrho","source":"da-silva-2015","name":"Euterpe precatoria stem mass from D2Hrho","output":{"quantity":"stem_biomass"},"expression":"exp(-2.11) * (D^2 * Hstem * rho)^0.90","published":{"expression":"exp(-2.11) * (D^2 * H * rho)^0.90","units":{"D":"cm","H":"m","rho":"g/cm3"},"variables":{"H":"Hstem"},"output_unit":"kg"},"taxon":{"level":"species","name":"Euterpe precatoria","family":"Arecaceae","group":"palm"},"region":{"scope":"site","countries":["BR"],"place":"Terra-firme forest at the INPA forest-management field station, ~60 km NW of Manaus, Amazonas","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":20,"dbh_min_cm":3.9,"dbh_max_cm":12.7,"h_min_m":2.3,"h_max_m":16.4,"method":"Power function fitted on ln-ln by standardized major axis (SMA)"},"evidence":[{"field":"expression","quote":"Ms D2Hρ −2.11 (−2.43–−1.79) 0.90 (0.84–0.96) 0.982","locator":"Table 1 (columns lng, h, adjusted R2; model ln y = ln g + h ln x, Eq. 2)"},{"field":"fit.n_trees","quote":"We harvested twenty palms","locator":"Abstract"}],"check":[{"inputs":{"D":8,"rho":0.4,"Hstem":10},"expected":17.826,"origin":"computed","note":"computed from Table 1 ln g and h"},{"inputs":{"D":12,"rho":0.5,"Hstem":15},"expected":65.121,"origin":"computed","note":"computed from Table 1 ln g and h"}],"verification":"original_read","checked_at":"2026-11-02","notes":"H is stem height from the stem base to the tip of the meristem (palm, fronds not included), mapped to canonical H. rho is the measured stem specific gravity (oven-dry mass / green volume), which the authors found rises with size, so applying this to unmeasured palms needs a rho estimate. Dry mass (fresh mass converted with component water content, dried at 65 C). SMA fit, no correction factor stated. Recommended: best predictor for Ms (adjusted R2 0.982 in Table 1). Coefficient is exp(lng) from Table 1 as printed. Not included: leaf mass (needs frond count Nf, not canonical) and root mass (Table 1 row and text disagree on the predictor). Palm height is measured from stem base to the meristem tip, fronds excluded; mapped to Hstem (closest canonical variable), not total height."},{"id":"darcha-2025-m1-dbh","source":"darcha-2025","name":"Faidherbia albida in parklands, DBH only (M1, selected)","output":{"quantity":"agb"},"expression":"1.05 * exp(-2.85 + 2.4 * ln(D))","published":{"expression":"1.05 * exp(-2.85 + 2.4 * ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Faidherbia albida","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"site","countries":["ET"],"place":"Parklands of Kilte Awlaelo, Hawzen and Ganta-Afeshum districts, eastern Tigray, Ethiopia (about 1850-2610 m)","biomes":["tropical","montane","dryland"]},"stand":"agroforestry","fit":{"n_trees":35,"dbh_min_cm":8,"dbh_max_cm":31,"h_min_m":3,"h_max_m":11.5,"r2":0.88,"rse":0.3,"cf":1.05,"method":"OLS on ln-transformed data, adjusted R2"},"evidence":[{"field":"expression","quote":"Ln (AGB) = -2.85 + 2.4 ln (DBH)","locator":"Abstract; Table 4 M1 (CF 1.05)"},{"field":"fit","quote":"Ln (TAGB) = a0 + a1 ln (DBH) ... −2.85 2.4 ... CF 1.05 ... 0.88 ... 0.3","locator":"Table 4, M1"}],"check":[{"inputs":{"D":15},"expected":40.37,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":30},"expected":213.08,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"CF 1.05 (Table 4) multiplies the back-transformed exponential. DBH taken at 1.37 m per the paper (also given as 1.3 m in the methods). Only 35 trees and DBH 8-31 cm."},{"id":"darcha-2025-m2-d30","source":"darcha-2025","name":"Faidherbia albida in parklands, stump-height diameter (M2)","output":{"quantity":"agb"},"expression":"1.06 * exp(-2.79 + 2.22 * ln(D30))","published":{"expression":"1.06 * exp(-2.79 + 2.22 * ln(DSH))","units":{"DSH":"cm"},"variables":{"DSH":"D30"},"output_unit":"kg"},"taxon":{"level":"species","name":"Faidherbia albida","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"site","countries":["ET"],"place":"Parklands of Kilte Awlaelo, Hawzen and Ganta-Afeshum districts, eastern Tigray, Ethiopia (about 1850-2610 m)","biomes":["tropical","montane","dryland"]},"stand":"agroforestry","fit":{"n_trees":35,"r2":0.86,"cf":1.06,"method":"OLS on ln-transformed data, adjusted R2"},"evidence":[{"field":"expression","quote":"Ln (TAGB) = a0 + a1 ln (DSH) ... −2.79 2.22 ... CF 1.06 ... 0.86","locator":"Table 4, M2"},{"field":"fit","quote":"DSH 8.7–38.8","locator":"Table 3"}],"check":[{"inputs":{"D30":20},"expected":50.34,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D30":35},"expected":174.36,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"DSH is diameter at stump height, 0.30 m, mapped to D30 (range 8.7-38.8 cm, Table 3)."},{"id":"das-2026-sb6-auriculiformis","source":"das-2026","name":"Acacia auriculiformis plantation, stem biomass from stump diameter (SB6)","output":{"quantity":"stem_biomass"},"expression":"1.0193 * exp(-2.992 + 2.245 * ln(D30))","published":{"expression":"1.0193 * exp(-2.992 + 2.245 * ln(dst))","units":{"dst":"cm"},"variables":{"dst":"D30"},"output_unit":"kg"},"taxon":{"level":"species","name":"Acacia auriculiformis","group":"broadleaf"},"region":{"scope":"site","countries":["BD"],"place":"Ten plantation sites, Sylhet Division, Bangladesh","biomes":["tropical"]},"stand":"plantation","fit":{"n_trees":25,"r2":0.9676,"cf":1.0193,"method":"OLS on ln-transformed data (ln-ln), adjusted R2"},"evidence":[{"field":"expression","quote":"SB6 Acacia −2.992*** 2.245*** 0.196 4182 0.9676 −81.20 16.507 1.0193 2.070","locator":"Table 3, model SB6 (columns: β0, β1, RMSE, F, adjusted R2, AIC, average deviation, CF, DW)"},{"field":"expression","quote":"The ln–ln stump-based model (SB6) was parsimonious and produced adjusted R2 values of 0.945–0.968 across species","locator":"Section 3.3"},{"field":"published.units","quote":"stump diameter (dst, measured at 30 cm above ground)","locator":"Abstract"},{"field":"output","quote":"Biomass estimates refer specifically to stem biomass; branch, foliage, and root components were not included.","locator":"Section 2.4"},{"field":"fit.n_trees","quote":"Calibration models were developed using 75 destructively sampled trees (25 per species, covering small, medium and large diameter classes)","locator":"Section 2.2"},{"field":"fit.method","quote":"All log transformations used natural logs (ln).","locator":"Section 2.5"}],"check":[{"inputs":{"D30":30},"expected":105.93,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D30":50},"expected":333.49,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Stem biomass only (bark included, oven-dry), so output is stem_biomass not agb. Form read as ln(SB) = β0 + β1 ln(dst) from the text calling SB6 the \"ln–ln stump-based model\"; the full model list is in a supplementary Table S1 that was not read. The Table 3 CF (1.0193) is applied in both forms. Table 3 caption says RMSE is in kg but the body values (about 0.2) are log-scale (CF 1.0193 matches exp(0.196²/2)), so the body is followed and rse is not stored. Table 3 gives no DBH range for the 25 calibration trees, so none is stored. Row label \"Acacia\" in Table 3 maps to this taxon."},{"id":"das-2026-sb6-hybrid","source":"das-2026","name":"Acacia auriculiformis × Acacia mangium (hybrid) plantation, stem biomass from stump diameter (SB6)","output":{"quantity":"stem_biomass"},"expression":"1.0217 * exp(-2.426 + 2.205 * ln(D30))","published":{"expression":"1.0217 * exp(-2.426 + 2.205 * ln(dst))","units":{"dst":"cm"},"variables":{"dst":"D30"},"output_unit":"kg"},"taxon":{"level":"species","name":"Acacia auriculiformis × Acacia mangium (hybrid)","group":"broadleaf"},"region":{"scope":"site","countries":["BD"],"place":"Ten plantation sites, Sylhet Division, Bangladesh","biomes":["tropical"]},"stand":"plantation","fit":{"n_trees":25,"r2":0.9546,"cf":1.0217,"method":"OLS on ln-transformed data (ln-ln), adjusted R2"},"evidence":[{"field":"expression","quote":"SB6 Hybrid −2.426*** 2.205*** 0.207 4186 0.9546 −57.95 17.266 1.0217 2.031","locator":"Table 3, model SB6 (columns: β0, β1, RMSE, F, adjusted R2, AIC, average deviation, CF, DW)"},{"field":"expression","quote":"The ln–ln stump-based model (SB6) was parsimonious and produced adjusted R2 values of 0.945–0.968 across species","locator":"Section 3.3"},{"field":"published.units","quote":"stump diameter (dst, measured at 30 cm above ground)","locator":"Abstract"},{"field":"output","quote":"Biomass estimates refer specifically to stem biomass; branch, foliage, and root components were not included.","locator":"Section 2.4"},{"field":"fit.n_trees","quote":"Calibration models were developed using 75 destructively sampled trees (25 per species, covering small, medium and large diameter classes)","locator":"Section 2.2"},{"field":"fit.method","quote":"All log transformations used natural logs (ln).","locator":"Section 2.5"}],"check":[{"inputs":{"D30":30},"expected":163.22,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D30":50},"expected":503.45,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Stem biomass only (bark included, oven-dry), so output is stem_biomass not agb. Form read as ln(SB) = β0 + β1 ln(dst) from the text calling SB6 the \"ln–ln stump-based model\"; the full model list is in a supplementary Table S1 that was not read. The Table 3 CF (1.0217) is applied in both forms. Table 3 caption says RMSE is in kg but the body values (about 0.2) are log-scale (CF 1.0193 matches exp(0.196²/2)), so the body is followed and rse is not stored. Table 3 gives no DBH range for the 25 calibration trees, so none is stored. Row label \"Hybrid\" in Table 3 maps to this taxon."},{"id":"das-2026-sb6-mangium","source":"das-2026","name":"Acacia mangium plantation, stem biomass from stump diameter (SB6)","output":{"quantity":"stem_biomass"},"expression":"1.0249 * exp(-2.519 + 2.175 * ln(D30))","published":{"expression":"1.0249 * exp(-2.519 + 2.175 * ln(dst))","units":{"dst":"cm"},"variables":{"dst":"D30"},"output_unit":"kg"},"taxon":{"level":"species","name":"Acacia mangium","group":"broadleaf"},"region":{"scope":"site","countries":["BD"],"place":"Ten plantation sites, Sylhet Division, Bangladesh","biomes":["tropical"]},"stand":"plantation","fit":{"n_trees":25,"r2":0.9454,"cf":1.0249,"method":"OLS on ln-transformed data (ln-ln), adjusted R2"},"evidence":[{"field":"expression","quote":"SB6 Mangium −2.519*** 2.175*** 0.222 2882 0.9454 −30.69 18.308 1.0249 2.002","locator":"Table 3, model SB6 (columns: β0, β1, RMSE, F, adjusted R2, AIC, average deviation, CF, DW)"},{"field":"expression","quote":"The ln–ln stump-based model (SB6) was parsimonious and produced adjusted R2 values of 0.945–0.968 across species","locator":"Section 3.3"},{"field":"published.units","quote":"stump diameter (dst, measured at 30 cm above ground)","locator":"Abstract"},{"field":"output","quote":"Biomass estimates refer specifically to stem biomass; branch, foliage, and root components were not included.","locator":"Section 2.4"},{"field":"fit.n_trees","quote":"Calibration models were developed using 75 destructively sampled trees (25 per species, covering small, medium and large diameter classes)","locator":"Section 2.2"},{"field":"fit.method","quote":"All log transformations used natural logs (ln).","locator":"Section 2.5"}],"check":[{"inputs":{"D30":30},"expected":134.72,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D30":50},"expected":409.22,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Stem biomass only (bark included, oven-dry), so output is stem_biomass not agb. Form read as ln(SB) = β0 + β1 ln(dst) from the text calling SB6 the \"ln–ln stump-based model\"; the full model list is in a supplementary Table S1 that was not read. The Table 3 CF (1.0249) is applied in both forms. Table 3 caption says RMSE is in kg but the body values (about 0.2) are log-scale (CF 1.0193 matches exp(0.196²/2)), so the body is followed and rse is not stored. Table 3 gives no DBH range for the 25 calibration trees, so none is stored. Row label \"Mangium\" in Table 3 maps to this taxon."},{"id":"de-cauwer-2020-vmer-d-h","source":"de-cauwer-2020","name":"Merchantable stem volume from DBH and height (Model 6, Table 7)","output":{"quantity":"stem_volume"},"expression":"exp(-7.821 + 0.599 * ln(D)^2 - 0.064 * ln(D)^3 + 0.800 * ln(H))","published":{"expression":"exp(-7.821 + 0.599 * ln(DBH)^2 - 0.064 * ln(DBH)^3 + 0.800 * ln(H))","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D"},"output_unit":"m3"},"taxon":{"level":"species","name":"Pterocarpus angolensis","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["NA","AO"],"place":"Baikiaea-Pterocarpus woodlands of northern Namibia and southern Angola (MAP 480-700 mm)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":340,"dbh_min_cm":5,"dbh_max_cm":92,"r2":0.95,"method":"Regression on ln scale with Baskerville correction in intercept; adjusted R2"},"evidence":[{"field":"expression","quote":"Vmer = exp(a + b 1 *(lnDBH)2 + b 2 *(lnDBH)3+ b 3 *lnH) ... -7.821 *** 0.599 *** -0.064 *** 0.800 ***","locator":"Table 7, Model 6"},{"field":"fit.n_trees","quote":"Data of 340 trees were used for Model 6 and 356 trees for all other models. DBH range is between 5 and 92 cm.","locator":"Table 7 caption"}],"check":[{"inputs":{"D":20,"H":8},"expected":0.0818874,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":50,"H":14},"expected":0.687744,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Merchantable (saw wood) over-bark volume of the bole, excluding the stump; the bole is the stem up to the first branch, so mapped to stem_volume. Table 7 caption: intercept a includes the Baskerville correction factor, so nothing is added (no CF value printed). Quadratic and cubic terms of ln(DBH) as printed. Paper's RSE is on the volume scale (m3), so fit.rse is left out; R2 is the printed adjusted R2."},{"id":"de-cauwer-2020-vmer-d","source":"de-cauwer-2020","name":"Merchantable stem volume from DBH (Model 4, Table 7)","output":{"quantity":"stem_volume"},"expression":"exp(-7.533 + 0.896 * ln(D)^2 - 0.110 * ln(D)^3)","published":{"expression":"exp(-7.533 + 0.896 * ln(DBH)^2 - 0.110 * ln(DBH)^3)","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m3"},"taxon":{"level":"species","name":"Pterocarpus angolensis","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["NA","AO"],"place":"Baikiaea-Pterocarpus woodlands of northern Namibia and southern Angola (MAP 480-700 mm)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":356,"dbh_min_cm":5,"dbh_max_cm":92,"r2":0.92,"method":"Regression on ln scale with Baskerville correction in intercept; adjusted R2"},"evidence":[{"field":"expression","quote":"Vmer = exp(a + b 1 *(lnDBH)2 + b 2 *(lnDBH)3 ... -7.533 *** 0.896 *** -0.110 ***","locator":"Table 7, Model 4"},{"field":"fit.n_trees","quote":"Data of 340 trees were used for Model 6 and 356 trees for all other models. DBH range is between 5 and 92 cm.","locator":"Table 7 caption"}],"check":[{"inputs":{"D":20},"expected":0.0863566,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":50},"expected":0.666105,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Merchantable (saw wood) over-bark volume of the bole, excluding the stump; the bole is the stem up to the first branch, so mapped to stem_volume. Table 7 caption: intercept a includes the Baskerville correction factor, so nothing is added (no CF value printed). Quadratic and cubic terms of ln(DBH) as printed. Paper's RSE is on the volume scale (m3), so fit.rse is left out; R2 is the printed adjusted R2."},{"id":"de-cauwer-2020-vtot-d-h","source":"de-cauwer-2020","name":"Total wood volume from DBH and height (Model 3, Table 5)","output":{"quantity":"total_volume"},"expression":"exp(-8.626 + 2.232 * ln(D) + 0.041 * H)","published":{"expression":"exp(-8.626 + 2.232 * ln(DBH) + 0.041 * H)","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D"},"output_unit":"m3"},"taxon":{"level":"species","name":"Pterocarpus angolensis","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["NA","AO"],"place":"Baikiaea-Pterocarpus woodlands of northern Namibia and southern Angola (MAP 480-700 mm)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":69,"dbh_min_cm":9,"dbh_max_cm":73,"r2":0.96,"method":"Regression on ln scale with Baskerville correction in intercept; adjusted R2"},"evidence":[{"field":"expression","quote":"V tot = exp(a + b 1 *lnDBH + b 2 *H) ... -8.626 *** 2.232 *** 0.041 ***","locator":"Table 5, Model 3"},{"field":"fit.n_trees","quote":"Models for Vtot were established with the data of 69 trees","locator":"Section 3.1"},{"field":"fit.dbh","quote":"diameter at breast height (DBH) in the range of 9 to 73 cm","locator":"Table 5 caption"}],"check":[{"inputs":{"D":20,"H":8},"expected":0.199583,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":50,"H":14},"expected":1.97316,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 5 caption: 'models with intercept a including the Baskerville correction factor', so the correction is already inside the printed intercept and nothing is added here (no separate CF value is printed). Total over-bark wood volume of the tree including branches and stump. Paper's RSE (0.49 m3 calibration) is on the volume scale, not log scale, so fit.rse is left out; R2 is the printed adjusted R2. Height enters linearly (b2*H), not as ln(H), as printed."},{"id":"de-cauwer-2020-vtot-d","source":"de-cauwer-2020","name":"Total wood volume from DBH (Model 1, Table 5)","output":{"quantity":"total_volume"},"expression":"exp(-8.796 + 2.441 * ln(D))","published":{"expression":"exp(-8.796 + 2.441 * ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m3"},"taxon":{"level":"species","name":"Pterocarpus angolensis","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["NA","AO"],"place":"Baikiaea-Pterocarpus woodlands of northern Namibia and southern Angola (MAP 480-700 mm)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":69,"dbh_min_cm":9,"dbh_max_cm":73,"r2":0.94,"method":"Regression on ln scale with Baskerville correction in intercept; adjusted R2"},"evidence":[{"field":"expression","quote":"V tot = exp(a + b 1 *lnDBH) ... -8.796 *** 2.441 ***","locator":"Table 5, Model 1"},{"field":"fit.n_trees","quote":"Models for Vtot were established with the data of 69 trees","locator":"Section 3.1"},{"field":"fit.dbh","quote":"diameter at breast height (DBH) in the range of 9 to 73 cm","locator":"Table 5 caption"}],"check":[{"inputs":{"D":20},"expected":0.226861,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":50},"expected":2.12389,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 5 caption: 'models with intercept a including the Baskerville correction factor', so the correction is already inside the printed intercept and nothing is added here (no separate CF value is printed). Total over-bark wood volume of the tree including branches and stump. Paper's RSE (0.49 m3 calibration) is on the volume scale, not log scale, so fit.rse is left out; R2 is the printed adjusted R2."},{"id":"de-miguel-2014-lebanon-branch-31","source":"de-miguel-2014","name":"Pinus brutia branch biomass, Lebanon (Eq. 31)","output":{"quantity":"branch_biomass"},"expression":"exp(0.625 + 12.203 * D / (D + 30.9) - 0.855 * ln(H))","published":{"expression":"exp(0.625 + 12.203 * D / (D + 30.9) - 0.855 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus brutia","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["LB"],"place":"Lebanon (sparse, uneven-aged stands)","biomes":["subtropical","dryland"]},"stand":"natural","fit":{"n_trees":101,"method":"nonlinear generalized least squares on the intrinsically linear form, power variance function (no back-transform correction)"},"evidence":[{"field":"expression","quote":"y = e^(0.625 + 12.203·d/(d + 30.9) − 0.855·ln h)","locator":"Table 3, Lebanon, Eq. 31, p. 105"},{"field":"fit.n_trees","quote":"Lebanon (101 trees)","locator":"Section 2.1, p. 103"}],"check":[{"inputs":{"D":10,"H":8},"expected":6.2382,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25,"H":14},"expected":45.8841,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":45,"H":25},"expected":165.3131,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Printed residual standard error 0.455 and variance function coefficient δ = 0.953 (model fitted on the original scale, so RSE is not a log-scale value and is not entered as fit.rse). Total aboveground biomass = stem + branches + needles (dry). DBH-only forms are those the authors recommend for tree- and forest-level predictions. Country-specific DBH and height ranges are not printed, so none are entered. Equations using crown length (19, 21) and the crown-biomass equations (23, 24, 33, 34, 43, 44) are not included."},{"id":"de-miguel-2014-lebanon-branch-32","source":"de-miguel-2014","name":"Pinus brutia branch biomass, Lebanon (Eq. 32)","output":{"quantity":"branch_biomass"},"expression":"exp(-0.253 + 9.921 * D / (D + 33.376))","published":{"expression":"exp(-0.253 + 9.921 * D / (D + 33.376))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus brutia","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["LB"],"place":"Lebanon (sparse, uneven-aged stands)","biomes":["subtropical","dryland"]},"stand":"natural","fit":{"n_trees":101,"method":"nonlinear generalized least squares on the intrinsically linear form, power variance function (no back-transform correction)"},"evidence":[{"field":"expression","quote":"y = e^(−0.253 + 9.921·d/(d + 33.376))","locator":"Table 3, Lebanon, Eq. 32, p. 105"},{"field":"fit.n_trees","quote":"Lebanon (101 trees)","locator":"Section 2.1, p. 103"}],"check":[{"inputs":{"D":10},"expected":7.6462,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25},"expected":54.3666,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":45},"expected":231.1797,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Printed residual standard error 0.811 and variance function coefficient δ = 0.824 (model fitted on the original scale, so RSE is not a log-scale value and is not entered as fit.rse). Total aboveground biomass = stem + branches + needles (dry). DBH-only forms are those the authors recommend for tree- and forest-level predictions. Country-specific DBH and height ranges are not printed, so none are entered. Equations using crown length (19, 21) and the crown-biomass equations (23, 24, 33, 34, 43, 44) are not included."},{"id":"de-miguel-2014-lebanon-needle-29","source":"de-miguel-2014","name":"Pinus brutia needle biomass, Lebanon (Eq. 29)","output":{"quantity":"foliage_biomass"},"expression":"exp(0.078 + 10.665 * D / (D + 26.492) - 0.855 * ln(H))","published":{"expression":"exp(0.078 + 10.665 * D / (D + 26.492) - 0.855 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus brutia","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["LB"],"place":"Lebanon (sparse, uneven-aged stands)","biomes":["subtropical","dryland"]},"stand":"natural","fit":{"n_trees":101,"method":"nonlinear generalized least squares on the intrinsically linear form, power variance function (no back-transform correction)"},"evidence":[{"field":"expression","quote":"y = e^(0.078 + 10.665·d/(d + 26.492) − 0.855·ln h)","locator":"Table 3, Lebanon, Eq. 29, p. 105"},{"field":"fit.n_trees","quote":"Lebanon (101 trees)","locator":"Section 2.1, p. 103"}],"check":[{"inputs":{"D":10,"H":8},"expected":3.3961,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25,"H":14},"expected":20.0774,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":45,"H":25},"expected":56.761,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Printed residual standard error 0.442 and variance function coefficient δ = 0.952 (model fitted on the original scale, so RSE is not a log-scale value and is not entered as fit.rse). Total aboveground biomass = stem + branches + needles (dry). DBH-only forms are those the authors recommend for tree- and forest-level predictions. Country-specific DBH and height ranges are not printed, so none are entered. Equations using crown length (19, 21) and the crown-biomass equations (23, 24, 33, 34, 43, 44) are not included."},{"id":"de-miguel-2014-lebanon-needle-30","source":"de-miguel-2014","name":"Pinus brutia needle biomass, Lebanon (Eq. 30)","output":{"quantity":"foliage_biomass"},"expression":"exp(-0.82 + 8.279 * D / (D + 26.854))","published":{"expression":"exp(-0.82 + 8.279 * D / (D + 26.854))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus brutia","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["LB"],"place":"Lebanon (sparse, uneven-aged stands)","biomes":["subtropical","dryland"]},"stand":"natural","fit":{"n_trees":101,"method":"nonlinear generalized least squares on the intrinsically linear form, power variance function (no back-transform correction)"},"evidence":[{"field":"expression","quote":"y = e^(−0.82 + 8.279·d/(d + 26.854))","locator":"Table 3, Lebanon, Eq. 30, p. 105"},{"field":"fit.n_trees","quote":"Lebanon (101 trees)","locator":"Section 2.1, p. 103"}],"check":[{"inputs":{"D":10},"expected":4.1638,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25},"expected":23.8431,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":45},"expected":78.6407,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Printed residual standard error 0.752 and variance function coefficient δ = 0.801 (model fitted on the original scale, so RSE is not a log-scale value and is not entered as fit.rse). Total aboveground biomass = stem + branches + needles (dry). DBH-only forms are those the authors recommend for tree- and forest-level predictions. Country-specific DBH and height ranges are not printed, so none are entered. Equations using crown length (19, 21) and the crown-biomass equations (23, 24, 33, 34, 43, 44) are not included."},{"id":"de-miguel-2014-lebanon-stem-35","source":"de-miguel-2014","name":"Pinus brutia stem biomass, Lebanon (Eq. 35)","output":{"quantity":"stem_biomass"},"expression":"exp(-1.372 + 8.1 * D / (D + 25.96) + 0.92 * ln(H))","published":{"expression":"exp(-1.372 + 8.1 * D / (D + 25.96) + 0.92 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus brutia","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["LB"],"place":"Lebanon (sparse, uneven-aged stands)","biomes":["subtropical","dryland"]},"stand":"natural","fit":{"n_trees":101,"method":"nonlinear generalized least squares on the intrinsically linear form, power variance function (no back-transform correction)"},"evidence":[{"field":"expression","quote":"y = e^(−1.372 + 8.1·d/(d + 25.96) + 0.92·ln h)","locator":"Table 3, Lebanon, Eq. 35, p. 105"},{"field":"fit.n_trees","quote":"Lebanon (101 trees)","locator":"Section 2.1, p. 103"}],"check":[{"inputs":{"D":10,"H":8},"expected":16.3396,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25,"H":14},"expected":152.8776,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":45,"H":25},"expected":833.8575,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Printed residual standard error 0.185 and variance function coefficient δ = 0.917 (model fitted on the original scale, so RSE is not a log-scale value and is not entered as fit.rse). Total aboveground biomass = stem + branches + needles (dry). DBH-only forms are those the authors recommend for tree- and forest-level predictions. Country-specific DBH and height ranges are not printed, so none are entered. Equations using crown length (19, 21) and the crown-biomass equations (23, 24, 33, 34, 43, 44) are not included."},{"id":"de-miguel-2014-lebanon-stem-36","source":"de-miguel-2014","name":"Pinus brutia stem biomass, Lebanon (Eq. 36)","output":{"quantity":"stem_biomass"},"expression":"exp(-0.622 + 10.187 * D / (D + 21.196))","published":{"expression":"exp(-0.622 + 10.187 * D / (D + 21.196))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus brutia","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["LB"],"place":"Lebanon (sparse, uneven-aged stands)","biomes":["subtropical","dryland"]},"stand":"natural","fit":{"n_trees":101,"method":"nonlinear generalized least squares on the intrinsically linear form, power variance function (no back-transform correction)"},"evidence":[{"field":"expression","quote":"y = e^(−0.622 + 10.187·d/(d + 21.196))","locator":"Table 3, Lebanon, Eq. 36, p. 105"},{"field":"fit.n_trees","quote":"Lebanon (101 trees)","locator":"Section 2.1, p. 103"}],"check":[{"inputs":{"D":10},"expected":14.0621,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25},"expected":133.0764,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":45},"expected":546.2716,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Printed residual standard error 0.367 and variance function coefficient δ = 0.897 (model fitted on the original scale, so RSE is not a log-scale value and is not entered as fit.rse). Total aboveground biomass = stem + branches + needles (dry). DBH-only forms are those the authors recommend for tree- and forest-level predictions. Country-specific DBH and height ranges are not printed, so none are entered. Equations using crown length (19, 21) and the crown-biomass equations (23, 24, 33, 34, 43, 44) are not included."},{"id":"de-miguel-2014-lebanon-total-37","source":"de-miguel-2014","name":"Pinus brutia total biomass, Lebanon (Eq. 37)","output":{"quantity":"agb"},"expression":"exp(0.406 + 8.991 * D / (D + 24.021) + 0.03 * H)","published":{"expression":"exp(0.406 + 8.991 * D / (D + 24.021) + 0.03 * H)","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus brutia","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["LB"],"place":"Lebanon (sparse, uneven-aged stands)","biomes":["subtropical","dryland"]},"stand":"natural","fit":{"n_trees":101,"method":"nonlinear generalized least squares on the intrinsically linear form, power variance function (no back-transform correction)"},"evidence":[{"field":"expression","quote":"y = e^(0.406 + 8.991·d/(d + 24.021) + 0.03·h)","locator":"Table 3, Lebanon, Eq. 37, p. 105"},{"field":"fit.n_trees","quote":"Lebanon (101 trees)","locator":"Section 2.1, p. 103"}],"check":[{"inputs":{"D":10,"H":8},"expected":26.8101,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25,"H":14},"expected":223.918,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":45,"H":25},"expected":1116.4526,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Printed residual standard error 0.681 and variance function coefficient δ = 0.737 (model fitted on the original scale, so RSE is not a log-scale value and is not entered as fit.rse). Total aboveground biomass = stem + branches + needles (dry). DBH-only forms are those the authors recommend for tree- and forest-level predictions. Country-specific DBH and height ranges are not printed, so none are entered. Equations using crown length (19, 21) and the crown-biomass equations (23, 24, 33, 34, 43, 44) are not included."},{"id":"de-miguel-2014-lebanon-total-38","source":"de-miguel-2014","name":"Pinus brutia total biomass, Lebanon (Eq. 38)","output":{"quantity":"agb"},"expression":"exp(0.474 + 9.791 * D / (D + 25.177))","published":{"expression":"exp(0.474 + 9.791 * D / (D + 25.177))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus brutia","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["LB"],"place":"Lebanon (sparse, uneven-aged stands)","biomes":["subtropical","dryland"]},"stand":"natural","fit":{"n_trees":101,"method":"nonlinear generalized least squares on the intrinsically linear form, power variance function (no back-transform correction)"},"evidence":[{"field":"expression","quote":"y = e^(0.474 + 9.791·d/(d + 25.177))","locator":"Table 3, Lebanon, Eq. 38, p. 105"},{"field":"fit.n_trees","quote":"Lebanon (101 trees)","locator":"Section 2.1, p. 103"}],"check":[{"inputs":{"D":10},"expected":25.9807,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25},"expected":211.0787,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":45},"expected":856.0588,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Printed residual standard error 0.547 and variance function coefficient δ = 0.793 (model fitted on the original scale, so RSE is not a log-scale value and is not entered as fit.rse). Total aboveground biomass = stem + branches + needles (dry). DBH-only forms are those the authors recommend for tree- and forest-level predictions. Country-specific DBH and height ranges are not printed, so none are entered. Equations using crown length (19, 21) and the crown-biomass equations (23, 24, 33, 34, 43, 44) are not included."},{"id":"de-miguel-2014-middle-east-branch-41","source":"de-miguel-2014","name":"Pinus brutia branch biomass, Middle East (Eq. 41)","output":{"quantity":"branch_biomass"},"expression":"exp(0.113 + 12.79 * D / (D + 23.007) - 1.166 * ln(H))","published":{"expression":"exp(0.113 + 12.79 * D / (D + 23.007) - 1.166 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus brutia","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["SY","LB"],"place":"Syria and Lebanon pooled","biomes":["subtropical","dryland"]},"stand":"natural","fit":{"n_trees":201,"dbh_min_cm":2.3,"dbh_max_cm":55.8,"h_min_m":3.1,"h_max_m":32.5,"method":"nonlinear generalized least squares on the intrinsically linear form, power variance function (no back-transform correction)"},"evidence":[{"field":"expression","quote":"y = e^(0.113 + 12.79·d/(d + 23.007) − 1.166·ln h)","locator":"Table 3, Middle East, Eq. 41, p. 105"},{"field":"fit.n_trees","quote":"201 P. brutia trees","locator":"Section 2.1, p. 103"}],"check":[{"inputs":{"D":10,"H":8},"expected":4.7746,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25,"H":14},"expected":40.2998,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":45,"H":25},"expected":124.3239,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Printed residual standard error 0.636 and variance function coefficient δ = 0.874 (model fitted on the original scale, so RSE is not a log-scale value and is not entered as fit.rse). Total aboveground biomass = stem + branches + needles (dry). DBH-only forms are those the authors recommend for tree- and forest-level predictions. Country-specific DBH and height ranges are not printed; the ranges shown are for all 201 trees. Equations using crown length (19, 21) and the crown-biomass equations (23, 24, 33, 34, 43, 44) are not included."},{"id":"de-miguel-2014-middle-east-branch-42","source":"de-miguel-2014","name":"Pinus brutia branch biomass, Middle East (Eq. 42)","output":{"quantity":"branch_biomass"},"expression":"exp(-1.149 + 9.277 * D / (D + 22.206))","published":{"expression":"exp(-1.149 + 9.277 * D / (D + 22.206))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus brutia","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["SY","LB"],"place":"Syria and Lebanon pooled","biomes":["subtropical","dryland"]},"stand":"natural","fit":{"n_trees":201,"dbh_min_cm":2.3,"dbh_max_cm":55.8,"h_min_m":3.1,"h_max_m":32.5,"method":"nonlinear generalized least squares on the intrinsically linear form, power variance function (no back-transform correction)"},"evidence":[{"field":"expression","quote":"y = e^(−1.149 + 9.277·d/(d + 22.206))","locator":"Table 3, Middle East, Eq. 42, p. 105"},{"field":"fit.n_trees","quote":"201 P. brutia trees","locator":"Section 2.1, p. 103"}],"check":[{"inputs":{"D":10},"expected":5.6492,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25},"expected":43.1223,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":45},"expected":158.0201,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Printed residual standard error 0.991 and variance function coefficient δ = 0.821 (model fitted on the original scale, so RSE is not a log-scale value and is not entered as fit.rse). Total aboveground biomass = stem + branches + needles (dry). DBH-only forms are those the authors recommend for tree- and forest-level predictions. Country-specific DBH and height ranges are not printed; the ranges shown are for all 201 trees. Equations using crown length (19, 21) and the crown-biomass equations (23, 24, 33, 34, 43, 44) are not included."},{"id":"de-miguel-2014-middle-east-needle-39","source":"de-miguel-2014","name":"Pinus brutia needle biomass, Middle East (Eq. 39)","output":{"quantity":"foliage_biomass"},"expression":"exp(-0.572 + 11.47 * D / (D + 18.745) - 1.179 * ln(H))","published":{"expression":"exp(-0.572 + 11.47 * D / (D + 18.745) - 1.179 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus brutia","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["SY","LB"],"place":"Syria and Lebanon pooled","biomes":["subtropical","dryland"]},"stand":"natural","fit":{"n_trees":201,"dbh_min_cm":2.3,"dbh_max_cm":55.8,"h_min_m":3.1,"h_max_m":32.5,"method":"nonlinear generalized least squares on the intrinsically linear form, power variance function (no back-transform correction)"},"evidence":[{"field":"expression","quote":"y = e^(−0.572 + 11.47·d/(d + 18.745) − 1.179·ln h)","locator":"Table 3, Middle East, Eq. 39, p. 105"},{"field":"fit.n_trees","quote":"201 P. brutia trees","locator":"Section 2.1, p. 103"}],"check":[{"inputs":{"D":10,"H":8},"expected":2.629,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25,"H":14},"expected":17.665,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":45,"H":25},"expected":41.6812,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Printed residual standard error 0.593 and variance function coefficient δ = 0.863 (model fitted on the original scale, so RSE is not a log-scale value and is not entered as fit.rse). Total aboveground biomass = stem + branches + needles (dry). DBH-only forms are those the authors recommend for tree- and forest-level predictions. Country-specific DBH and height ranges are not printed; the ranges shown are for all 201 trees. Equations using crown length (19, 21) and the crown-biomass equations (23, 24, 33, 34, 43, 44) are not included."},{"id":"de-miguel-2014-middle-east-needle-40","source":"de-miguel-2014","name":"Pinus brutia needle biomass, Middle East (Eq. 40)","output":{"quantity":"foliage_biomass"},"expression":"exp(-1.848 + 8.0 * D / (D + 16.803))","published":{"expression":"exp(-1.848 + 8.0 * D / (D + 16.803))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus brutia","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["SY","LB"],"place":"Syria and Lebanon pooled","biomes":["subtropical","dryland"]},"stand":"natural","fit":{"n_trees":201,"dbh_min_cm":2.3,"dbh_max_cm":55.8,"h_min_m":3.1,"h_max_m":32.5,"method":"nonlinear generalized least squares on the intrinsically linear form, power variance function (no back-transform correction)"},"evidence":[{"field":"expression","quote":"y = e^(−1.848 + 8.0·d/(d + 16.803))","locator":"Table 3, Middle East, Eq. 40, p. 105"},{"field":"fit.n_trees","quote":"201 P. brutia trees","locator":"Section 2.1, p. 103"}],"check":[{"inputs":{"D":10},"expected":3.1166,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25},"expected":18.8468,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":45},"expected":53.3546,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Printed residual standard error 0.909 and variance function coefficient δ = 0.801 (model fitted on the original scale, so RSE is not a log-scale value and is not entered as fit.rse). Total aboveground biomass = stem + branches + needles (dry). DBH-only forms are those the authors recommend for tree- and forest-level predictions. Country-specific DBH and height ranges are not printed; the ranges shown are for all 201 trees. Equations using crown length (19, 21) and the crown-biomass equations (23, 24, 33, 34, 43, 44) are not included."},{"id":"de-miguel-2014-middle-east-stem-45","source":"de-miguel-2014","name":"Pinus brutia stem biomass, Middle East (Eq. 45)","output":{"quantity":"stem_biomass"},"expression":"exp(-1.734 + 8.09 * D / (D + 20.731) + 0.886 * ln(H))","published":{"expression":"exp(-1.734 + 8.09 * D / (D + 20.731) + 0.886 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus brutia","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["SY","LB"],"place":"Syria and Lebanon pooled","biomes":["subtropical","dryland"]},"stand":"natural","fit":{"n_trees":201,"dbh_min_cm":2.3,"dbh_max_cm":55.8,"h_min_m":3.1,"h_max_m":32.5,"method":"nonlinear generalized least squares on the intrinsically linear form, power variance function (no back-transform correction)"},"evidence":[{"field":"expression","quote":"y = e^(−1.734 + 8.09·d/(d + 20.731) + 0.886·ln h)","locator":"Table 3, Middle East, Eq. 45, p. 105"},{"field":"fit.n_trees","quote":"201 P. brutia trees","locator":"Section 2.1, p. 103"}],"check":[{"inputs":{"D":10,"H":8},"expected":15.501,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25,"H":14},"expected":152.4454,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":45,"H":25},"expected":777.7511,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Printed residual standard error 0.227 and variance function coefficient δ = 0.861 (model fitted on the original scale, so RSE is not a log-scale value and is not entered as fit.rse). Total aboveground biomass = stem + branches + needles (dry). DBH-only forms are those the authors recommend for tree- and forest-level predictions. Country-specific DBH and height ranges are not printed; the ranges shown are for all 201 trees. Equations using crown length (19, 21) and the crown-biomass equations (23, 24, 33, 34, 43, 44) are not included."},{"id":"de-miguel-2014-middle-east-stem-46","source":"de-miguel-2014","name":"Pinus brutia stem biomass, Middle East (Eq. 46)","output":{"quantity":"stem_biomass"},"expression":"exp(-2.779 + 2.427 * ln(D))","published":{"expression":"exp(-2.779 + 2.427 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus brutia","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["SY","LB"],"place":"Syria and Lebanon pooled","biomes":["subtropical","dryland"]},"stand":"natural","fit":{"n_trees":201,"dbh_min_cm":2.3,"dbh_max_cm":55.8,"h_min_m":3.1,"h_max_m":32.5,"method":"nonlinear generalized least squares on the intrinsically linear form, power variance function (no back-transform correction)"},"evidence":[{"field":"expression","quote":"y = e^(−2.779 + 2.427·ln d)","locator":"Table 3, Middle East, Eq. 46, p. 105"},{"field":"fit.n_trees","quote":"201 P. brutia trees","locator":"Section 2.1, p. 103"}],"check":[{"inputs":{"D":10},"expected":16.5995,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25},"expected":153.425,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":45},"expected":638.914,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Printed residual standard error 0.305 and variance function coefficient δ = 0.959 (model fitted on the original scale, so RSE is not a log-scale value and is not entered as fit.rse). Total aboveground biomass = stem + branches + needles (dry). DBH-only forms are those the authors recommend for tree- and forest-level predictions. Country-specific DBH and height ranges are not printed; the ranges shown are for all 201 trees. Equations using crown length (19, 21) and the crown-biomass equations (23, 24, 33, 34, 43, 44) are not included."},{"id":"de-miguel-2014-middle-east-total-47","source":"de-miguel-2014","name":"Pinus brutia total biomass, Middle East (Eq. 47)","output":{"quantity":"agb"},"expression":"exp(0.119 + 10.122 * D / (D + 23.225))","published":{"expression":"exp(0.119 + 10.122 * D / (D + 23.225))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus brutia","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["SY","LB"],"place":"Syria and Lebanon pooled","biomes":["subtropical","dryland"]},"stand":"natural","fit":{"n_trees":201,"dbh_min_cm":2.3,"dbh_max_cm":55.8,"h_min_m":3.1,"h_max_m":32.5,"method":"nonlinear generalized least squares on the intrinsically linear form, power variance function (no back-transform correction)"},"evidence":[{"field":"expression","quote":"y = e^(0.119 + 10.122·d/(d + 23.225))","locator":"Table 3, Middle East, Eq. 47, p. 105"},{"field":"fit.n_trees","quote":"201 P. brutia trees","locator":"Section 2.1, p. 103"}],"check":[{"inputs":{"D":10},"expected":23.7006,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25},"expected":214.0647,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":45},"expected":893.6299,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Printed residual standard error 0.614 and variance function coefficient δ = 0.768 (model fitted on the original scale, so RSE is not a log-scale value and is not entered as fit.rse). Total aboveground biomass = stem + branches + needles (dry). DBH-only forms are those the authors recommend for tree- and forest-level predictions. Country-specific DBH and height ranges are not printed; the ranges shown are for all 201 trees. Equations using crown length (19, 21) and the crown-biomass equations (23, 24, 33, 34, 43, 44) are not included."},{"id":"de-miguel-2014-syria-branch-22","source":"de-miguel-2014","name":"Pinus brutia branch biomass, Syria (Eq. 22)","output":{"quantity":"branch_biomass"},"expression":"exp(-1.652 + 10.395 * D / (D + 26.816))","published":{"expression":"exp(-1.652 + 10.395 * D / (D + 26.816))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus brutia","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["SY"],"place":"Syria (dense, even-aged stands)","biomes":["subtropical","dryland"]},"stand":"natural","fit":{"n_trees":100,"method":"nonlinear generalized least squares on the intrinsically linear form, power variance function (no back-transform correction)"},"evidence":[{"field":"expression","quote":"y = e^(−1.652 + 10.395·d/(d + 26.816))","locator":"Table 3, Syria, Eq. 22, p. 105"},{"field":"fit.n_trees","quote":"Syria (100 trees)","locator":"Section 2.1, p. 103"}],"check":[{"inputs":{"D":10},"expected":3.2268,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25},"expected":28.8856,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":45},"expected":129.2206,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Printed residual standard error 0.455 and variance function coefficient δ = 0.916 (model fitted on the original scale, so RSE is not a log-scale value and is not entered as fit.rse). Total aboveground biomass = stem + branches + needles (dry). DBH-only forms are those the authors recommend for tree- and forest-level predictions. Country-specific DBH and height ranges are not printed, so none are entered. Equations using crown length (19, 21) and the crown-biomass equations (23, 24, 33, 34, 43, 44) are not included."},{"id":"de-miguel-2014-syria-needle-20","source":"de-miguel-2014","name":"Pinus brutia needle biomass, Syria (Eq. 20)","output":{"quantity":"foliage_biomass"},"expression":"exp(-2.302 + 8.865 * D / (D + 20.79))","published":{"expression":"exp(-2.302 + 8.865 * D / (D + 20.79))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus brutia","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["SY"],"place":"Syria (dense, even-aged stands)","biomes":["subtropical","dryland"]},"stand":"natural","fit":{"n_trees":100,"method":"nonlinear generalized least squares on the intrinsically linear form, power variance function (no back-transform correction)"},"evidence":[{"field":"expression","quote":"y = e^(−2.302 + 8.865·d/(d + 20.79))","locator":"Table 3, Syria, Eq. 20, p. 105"},{"field":"fit.n_trees","quote":"Syria (100 trees)","locator":"Section 2.1, p. 103"}],"check":[{"inputs":{"D":10},"expected":1.781,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25},"expected":12.6547,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":45},"expected":43.0177,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Printed residual standard error 0.418 and variance function coefficient δ = 0.924 (model fitted on the original scale, so RSE is not a log-scale value and is not entered as fit.rse). Total aboveground biomass = stem + branches + needles (dry). DBH-only forms are those the authors recommend for tree- and forest-level predictions. Country-specific DBH and height ranges are not printed, so none are entered. Equations using crown length (19, 21) and the crown-biomass equations (23, 24, 33, 34, 43, 44) are not included."},{"id":"de-miguel-2014-syria-stem-25","source":"de-miguel-2014","name":"Pinus brutia stem biomass, Syria (Eq. 25)","output":{"quantity":"stem_biomass"},"expression":"exp(-3.371 + 1.835 * ln(D) + 0.937 * ln(H))","published":{"expression":"exp(-3.371 + 1.835 * ln(D) + 0.937 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus brutia","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["SY"],"place":"Syria (dense, even-aged stands)","biomes":["subtropical","dryland"]},"stand":"natural","fit":{"n_trees":100,"method":"nonlinear generalized least squares on the intrinsically linear form, power variance function (no back-transform correction)"},"evidence":[{"field":"expression","quote":"y = e^(−3.371 + 1.835·ln d + 0.937·ln h)","locator":"Table 3, Syria, Eq. 25, p. 105"},{"field":"fit.n_trees","quote":"Syria (100 trees)","locator":"Section 2.1, p. 103"}],"check":[{"inputs":{"D":10,"H":8},"expected":16.4888,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25,"H":14},"expected":149.6701,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":45,"H":25},"expected":757.7188,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Printed residual standard error 0.153 and variance function coefficient δ = 0.92 (model fitted on the original scale, so RSE is not a log-scale value and is not entered as fit.rse). Total aboveground biomass = stem + branches + needles (dry). DBH-only forms are those the authors recommend for tree- and forest-level predictions. Country-specific DBH and height ranges are not printed, so none are entered. Equations using crown length (19, 21) and the crown-biomass equations (23, 24, 33, 34, 43, 44) are not included."},{"id":"de-miguel-2014-syria-stem-26","source":"de-miguel-2014","name":"Pinus brutia stem biomass, Syria (Eq. 26)","output":{"quantity":"stem_biomass"},"expression":"exp(-2.698 + 2.44 * ln(D))","published":{"expression":"exp(-2.698 + 2.44 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus brutia","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["SY"],"place":"Syria (dense, even-aged stands)","biomes":["subtropical","dryland"]},"stand":"natural","fit":{"n_trees":100,"method":"nonlinear generalized least squares on the intrinsically linear form, power variance function (no back-transform correction)"},"evidence":[{"field":"expression","quote":"y = e^(−2.698 + 2.44·ln d)","locator":"Table 3, Syria, Eq. 26, p. 105"},{"field":"fit.n_trees","quote":"Syria (100 trees)","locator":"Section 2.1, p. 103"}],"check":[{"inputs":{"D":10},"expected":18.547,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25},"expected":173.4791,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":45},"expected":727.9676,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Printed residual standard error 0.239 and variance function coefficient δ = 0.96 (model fitted on the original scale, so RSE is not a log-scale value and is not entered as fit.rse). Total aboveground biomass = stem + branches + needles (dry). DBH-only forms are those the authors recommend for tree- and forest-level predictions. Country-specific DBH and height ranges are not printed, so none are entered. Equations using crown length (19, 21) and the crown-biomass equations (23, 24, 33, 34, 43, 44) are not included."},{"id":"de-miguel-2014-syria-total-27","source":"de-miguel-2014","name":"Pinus brutia total biomass, Syria (Eq. 27)","output":{"quantity":"agb"},"expression":"exp(-0.849 + 8.863 * D / (D + 15.048) + 0.042 * H)","published":{"expression":"exp(-0.849 + 8.863 * D / (D + 15.048) + 0.042 * H)","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus brutia","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["SY"],"place":"Syria (dense, even-aged stands)","biomes":["subtropical","dryland"]},"stand":"natural","fit":{"n_trees":100,"method":"nonlinear generalized least squares on the intrinsically linear form, power variance function (no back-transform correction)"},"evidence":[{"field":"expression","quote":"y = e^(−0.849 + 8.863·d/(d + 15.048) + 0.042·h)","locator":"Table 3, Syria, Eq. 27, p. 105"},{"field":"fit.n_trees","quote":"Syria (100 trees)","locator":"Section 2.1, p. 103"}],"check":[{"inputs":{"D":10,"H":8},"expected":20.6024,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25,"H":14},"expected":194.7537,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":45,"H":25},"expected":937.2372,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Printed residual standard error 0.225 and variance function coefficient δ = 0.893 (model fitted on the original scale, so RSE is not a log-scale value and is not entered as fit.rse). Total aboveground biomass = stem + branches + needles (dry). DBH-only forms are those the authors recommend for tree- and forest-level predictions. Country-specific DBH and height ranges are not printed, so none are entered. Equations using crown length (19, 21) and the crown-biomass equations (23, 24, 33, 34, 43, 44) are not included."},{"id":"de-miguel-2014-syria-total-28","source":"de-miguel-2014","name":"Pinus brutia total biomass, Syria (Eq. 28)","output":{"quantity":"agb"},"expression":"exp(-2.31 + 2.389 * ln(D))","published":{"expression":"exp(-2.31 + 2.389 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus brutia","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["SY"],"place":"Syria (dense, even-aged stands)","biomes":["subtropical","dryland"]},"stand":"natural","fit":{"n_trees":100,"method":"nonlinear generalized least squares on the intrinsically linear form, power variance function (no back-transform correction)"},"evidence":[{"field":"expression","quote":"y = e^(−2.31 + 2.389·ln d)","locator":"Table 3, Syria, Eq. 28, p. 105"},{"field":"fit.n_trees","quote":"Syria (100 trees)","locator":"Section 2.1, p. 103"}],"check":[{"inputs":{"D":10},"expected":24.3097,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25},"expected":216.9993,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":45},"expected":883.6992,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Printed residual standard error 0.316 and variance function coefficient δ = 0.882 (model fitted on the original scale, so RSE is not a log-scale value and is not entered as fit.rse). Total aboveground biomass = stem + branches + needles (dry). DBH-only forms are those the authors recommend for tree- and forest-level predictions. Country-specific DBH and height ranges are not printed, so none are entered. Equations using crown length (19, 21) and the crown-biomass equations (23, 24, 33, 34, 43, 44) are not included."},{"id":"delcourt-2022-magadan-agb","source":"delcourt-2022","name":"Larix cajanderi, Magadan Oblast, total aboveground biomass from DBH (Table 5)","output":{"quantity":"agb"},"expression":"0.097 * D^2.423","published":{"expression":"0.097 * DBH^2.423","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix cajanderi","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["RU"],"place":"Magadan Oblast, Russia (site-specific, Larix cajanderi stands)","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":43,"dbh_min_cm":3.9,"dbh_max_cm":52.8,"method":"weighted nonlinear least squares power function, weights DBH^(-2c)"},"evidence":[{"field":"expression","quote":"Magadan Oblast Aboveground 3.9–52.8 43 0.097 0.019 2.423 0.062 45.071; Y = a × DBH^b, Y in kg dry weight, DBH in cm","locator":"Table 5"},{"field":"fit.n_trees","quote":"43 trees, DBH range 3.9–52.8 cm","locator":"Table 5, Number of trees and DBH range columns"}],"check":[{"inputs":{"D":5},"expected":4.7904,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":15},"expected":68.618,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":40},"expected":738.86,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Coefficients as printed in Table 5 (3 decimals); no log back-transform because fitted by weighted nonlinear regression."},{"id":"delcourt-2022-magadan-branch","source":"delcourt-2022","name":"Larix cajanderi, Magadan Oblast, branch biomass from DBH (Table 5)","output":{"quantity":"branch_biomass"},"expression":"0.031 * D^2.136","published":{"expression":"0.031 * DBH^2.136","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix cajanderi","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["RU"],"place":"Magadan Oblast, Russia (site-specific, Larix cajanderi stands)","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":43,"dbh_min_cm":3.9,"dbh_max_cm":52.8,"method":"weighted nonlinear least squares power function, weights DBH^(-2c)"},"evidence":[{"field":"expression","quote":"Magadan Oblast Branches 3.9–52.8 43 0.031 0.013 2.136 0.144 17.082; Y = a × DBH^b, Y in kg dry weight, DBH in cm","locator":"Table 5"},{"field":"fit.n_trees","quote":"43 trees, DBH range 3.9–52.8 cm","locator":"Table 5, Number of trees and DBH range columns"}],"check":[{"inputs":{"D":5},"expected":0.96463,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":15},"expected":10.081,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":40},"expected":81.915,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Coefficients as printed in Table 5 (3 decimals); no log back-transform because fitted by weighted nonlinear regression."},{"id":"delcourt-2022-magadan-foliage","source":"delcourt-2022","name":"Larix cajanderi, Magadan Oblast, foliage biomass from DBH (Table 5)","output":{"quantity":"foliage_biomass"},"expression":"0.016 * D^1.835","published":{"expression":"0.016 * DBH^1.835","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix cajanderi","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["RU"],"place":"Magadan Oblast, Russia (site-specific, Larix cajanderi stands)","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":43,"dbh_min_cm":3.9,"dbh_max_cm":52.8,"method":"weighted nonlinear least squares power function, weights DBH^(-2c)"},"evidence":[{"field":"expression","quote":"Magadan Oblast Foliage 3.9–52.8 43 0.016 0.006 1.835 0.130 2.601; Y = a × DBH^b, Y in kg dry weight, DBH in cm","locator":"Table 5"},{"field":"fit.n_trees","quote":"43 trees, DBH range 3.9–52.8 cm","locator":"Table 5, Number of trees and DBH range columns"}],"check":[{"inputs":{"D":5},"expected":0.30671,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":15},"expected":2.3028,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":40},"expected":13.928,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Coefficients as printed in Table 5 (3 decimals); no log back-transform because fitted by weighted nonlinear regression."},{"id":"delcourt-2022-magadan-stem","source":"delcourt-2022","name":"Larix cajanderi, Magadan Oblast, stem (wood plus bark) biomass from DBH (Table 5)","output":{"quantity":"stem_biomass"},"expression":"0.066 * D^2.493","published":{"expression":"0.066 * DBH^2.493","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix cajanderi","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["RU"],"place":"Magadan Oblast, Russia (site-specific, Larix cajanderi stands)","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":43,"dbh_min_cm":3.9,"dbh_max_cm":52.8,"method":"weighted nonlinear least squares power function, weights DBH^(-2c)"},"evidence":[{"field":"expression","quote":"Magadan Oblast Stem 3.9–52.8 43 0.066 0.014 2.493 0.068 40.934; Y = a × DBH^b, Y in kg dry weight, DBH in cm","locator":"Table 5"},{"field":"fit.n_trees","quote":"43 trees, DBH range 3.9–52.8 cm","locator":"Table 5, Number of trees and DBH range columns"}],"check":[{"inputs":{"D":5},"expected":3.6482,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":15},"expected":56.434,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":40},"expected":650.85,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Coefficients as printed in Table 5 (3 decimals); no log back-transform because fitted by weighted nonlinear regression. 'Stem' is the stem row (the table also lists stem wood and stem bark separately; the contract has no output for those)."},{"id":"delcourt-2022-ustyansky-agb","source":"delcourt-2022","name":"Larix cajanderi, Ust-Yansky district, total aboveground biomass from DBH (Table 5)","output":{"quantity":"agb"},"expression":"0.26 * D^2.062","published":{"expression":"0.26 * DBH^2.062","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix cajanderi","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["RU"],"place":"Ust-Yansky district, Republic of Sakha, Russia (site-specific, Larix cajanderi stands)","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":20,"dbh_min_cm":1.8,"dbh_max_cm":18.9,"method":"weighted nonlinear least squares power function, weights DBH^(-2c)"},"evidence":[{"field":"expression","quote":"Ust-Yansky district Aboveground 1.8–18.9 20 0.260 0.039 2.062 0.074 5.285; Y = a × DBH^b, Y in kg dry weight, DBH in cm","locator":"Table 5"},{"field":"fit.n_trees","quote":"20 trees, DBH range 1.8–18.9 cm","locator":"Table 5, Number of trees and DBH range columns"}],"check":[{"inputs":{"D":3},"expected":2.5049,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":8},"expected":18.93,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":15},"expected":69.195,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Coefficients as printed in Table 5 (3 decimals); no log back-transform because fitted by weighted nonlinear regression."},{"id":"delcourt-2022-ustyansky-branch","source":"delcourt-2022","name":"Larix cajanderi, Ust-Yansky district, branch biomass from DBH (Table 5)","output":{"quantity":"branch_biomass"},"expression":"0.105 * D^1.757","published":{"expression":"0.105 * DBH^1.757","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix cajanderi","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["RU"],"place":"Ust-Yansky district, Republic of Sakha, Russia (site-specific, Larix cajanderi stands)","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":20,"dbh_min_cm":1.8,"dbh_max_cm":18.9,"method":"weighted nonlinear least squares power function, weights DBH^(-2c)"},"evidence":[{"field":"expression","quote":"Ust-Yansky district Branches 1.8–18.9 20 0.105 0.026 1.757 0.115 1.536; Y = a × DBH^b, Y in kg dry weight, DBH in cm","locator":"Table 5"},{"field":"fit.n_trees","quote":"20 trees, DBH range 1.8–18.9 cm","locator":"Table 5, Number of trees and DBH range columns"}],"check":[{"inputs":{"D":3},"expected":0.72359,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":8},"expected":4.0543,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":15},"expected":12.234,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Coefficients as printed in Table 5 (3 decimals); no log back-transform because fitted by weighted nonlinear regression."},{"id":"delcourt-2022-ustyansky-foliage","source":"delcourt-2022","name":"Larix cajanderi, Ust-Yansky district, foliage biomass from DBH (Table 5)","output":{"quantity":"foliage_biomass"},"expression":"0.043 * D^1.642","published":{"expression":"0.043 * DBH^1.642","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix cajanderi","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["RU"],"place":"Ust-Yansky district, Republic of Sakha, Russia (site-specific, Larix cajanderi stands)","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":20,"dbh_min_cm":1.8,"dbh_max_cm":18.9,"method":"weighted nonlinear least squares power function, weights DBH^(-2c)"},"evidence":[{"field":"expression","quote":"Ust-Yansky district Foliage 1.8–18.9 20 0.043 0.010 1.642 0.111 0.510; Y = a × DBH^b, Y in kg dry weight, DBH in cm","locator":"Table 5"},{"field":"fit.n_trees","quote":"20 trees, DBH range 1.8–18.9 cm","locator":"Table 5, Number of trees and DBH range columns"}],"check":[{"inputs":{"D":3},"expected":0.26116,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":8},"expected":1.3072,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":15},"expected":3.6695,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Coefficients as printed in Table 5 (3 decimals); no log back-transform because fitted by weighted nonlinear regression."},{"id":"delcourt-2022-ustyansky-stem","source":"delcourt-2022","name":"Larix cajanderi, Ust-Yansky district, stem (wood plus bark) biomass from DBH (Table 5)","output":{"quantity":"stem_biomass"},"expression":"0.128 * D^2.227","published":{"expression":"0.128 * DBH^2.227","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix cajanderi","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["RU"],"place":"Ust-Yansky district, Republic of Sakha, Russia (site-specific, Larix cajanderi stands)","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":20,"dbh_min_cm":1.8,"dbh_max_cm":18.9,"method":"weighted nonlinear least squares power function, weights DBH^(-2c)"},"evidence":[{"field":"expression","quote":"Ust-Yansky district Stem 1.8–18.9 20 0.128 0.013 2.227 0.059 5.568; Y = a × DBH^b, Y in kg dry weight, DBH in cm","locator":"Table 5"},{"field":"fit.n_trees","quote":"20 trees, DBH range 1.8–18.9 cm","locator":"Table 5, Number of trees and DBH range columns"}],"check":[{"inputs":{"D":3},"expected":1.4783,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":8},"expected":13.134,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":15},"expected":53.256,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Coefficients as printed in Table 5 (3 decimals); no log back-transform because fitted by weighted nonlinear regression. 'Stem' is the stem row (the table also lists stem wood and stem bark separately; the contract has no output for those)."},{"id":"deltell-2024-c-albidus-total","source":"deltell-2024","name":"Cistus albidus total aboveground fuel (biomass) from basal diameter, all development states","output":{"quantity":"agb"},"expression":"exp(3.917) * DRC^2.35 * 1.053 / 1000","published":{"expression":"exp(3.917) * X^2.35 * 1.053","units":{"X":"cm"},"variables":{"X":"DRC"},"output_unit":"g"},"taxon":{"level":"species","name":"Cistus albidus","family":"Cistaceae","group":"shrub"},"region":{"scope":"site","countries":["ES"],"place":"Ayora, Valencia Province, eastern Spain (post-fire stands 5-26 years old)","biomes":["temperate","dryland"]},"stand":"natural","fit":{"r2":0.923,"cf":1.053,"method":"log-log regression with Sprugel (1983) correction factor"},"evidence":[{"field":"expression","quote":"Y=((exp(a))×(X^b))×CF","locator":"Table 2 caption"},{"field":"expression","quote":"C. albidus | Total fuel | Diameter | 3.917 | 2.350 | 0.923 | 0.320 | 1.053","locator":"Table 2 (columns: species, dependent variable Y, independent variable X, a, b, r2, SEE, CF)"},{"field":"published.units","quote":"we measured four structural variables ... basal stem diameter, height, maximum crown diameter","locator":"Methods, Sampling of species-specific structural variables (measurements in cm)"},{"field":"published.output_unit","quote":"The weight of fuel fractions was measured in grams.","locator":"Methods, Sampling of species-specific structural variables"}],"check":[{"inputs":{"DRC":10},"expected":11.8457,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Total fuel here is all plant biomass of the individual (living plus dead, all size classes), pooled over four post-fire development states (5, 9, 14 and 26 years). X is basal stem diameter in cm (the paper says measured in cm; Table 2 does not repeat the unit) and Y is in grams. Individuals sampled are 10-12 per species per state; per-species n and diameter range are not stated, so left out. Equation is a species-level shrub or small-tree fuel model. The paper writes the fit as 'log Y = log a + b log X' without naming the base, but prints the back-transform as Y = exp(a) × X^b × CF (Table 2 caption), so a is taken as a natural-log intercept as the paper itself does."},{"id":"deltell-2024-c-clusii-total","source":"deltell-2024","name":"Cistus clusii total aboveground fuel (biomass) from basal diameter, all development states","output":{"quantity":"agb"},"expression":"exp(3.509) * DRC^2.33 * 1.04 / 1000","published":{"expression":"exp(3.509) * X^2.33 * 1.04","units":{"X":"cm"},"variables":{"X":"DRC"},"output_unit":"g"},"taxon":{"level":"species","name":"Cistus clusii","family":"Cistaceae","group":"shrub"},"region":{"scope":"site","countries":["ES"],"place":"Ayora, Valencia Province, eastern Spain (post-fire stands 5-26 years old)","biomes":["temperate","dryland"]},"stand":"natural","fit":{"r2":0.857,"cf":1.04,"method":"log-log regression with Sprugel (1983) correction factor"},"evidence":[{"field":"expression","quote":"Y=((exp(a))×(X^b))×CF","locator":"Table 2 caption"},{"field":"expression","quote":"C.clusii | Total fuel | Diameter | 3.509 | 2.330 | 0.857 | 0.279 | 1.040","locator":"Table 2 (columns: species, dependent variable Y, independent variable X, a, b, r2, SEE, CF)"},{"field":"published.units","quote":"we measured four structural variables ... basal stem diameter, height, maximum crown diameter","locator":"Methods, Sampling of species-specific structural variables (measurements in cm)"},{"field":"published.output_unit","quote":"The weight of fuel fractions was measured in grams.","locator":"Methods, Sampling of species-specific structural variables"}],"check":[{"inputs":{"DRC":10},"expected":7.42972,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Total fuel here is all plant biomass of the individual (living plus dead, all size classes), pooled over four post-fire development states (5, 9, 14 and 26 years). X is basal stem diameter in cm (the paper says measured in cm; Table 2 does not repeat the unit) and Y is in grams. Individuals sampled are 10-12 per species per state; per-species n and diameter range are not stated, so left out. Equation is a species-level shrub or small-tree fuel model. The paper writes the fit as 'log Y = log a + b log X' without naming the base, but prints the back-transform as Y = exp(a) × X^b × CF (Table 2 caption), so a is taken as a natural-log intercept as the paper itself does."},{"id":"deltell-2024-j-oxycedrus-total","source":"deltell-2024","name":"Juniperus oxycedrus total aboveground fuel (biomass) from basal diameter, all development states","output":{"quantity":"agb"},"expression":"exp(3.885) * DRC^2.43 * 1.023 / 1000","published":{"expression":"exp(3.885) * X^2.43 * 1.023","units":{"X":"cm"},"variables":{"X":"DRC"},"output_unit":"g"},"taxon":{"level":"species","name":"Juniperus oxycedrus","family":"Cupressaceae","group":"conifer"},"region":{"scope":"site","countries":["ES"],"place":"Ayora, Valencia Province, eastern Spain (post-fire stands 5-26 years old)","biomes":["temperate","dryland"]},"stand":"natural","fit":{"r2":0.976,"cf":1.023,"method":"log-log regression with Sprugel (1983) correction factor"},"evidence":[{"field":"expression","quote":"Y=((exp(a))×(X^b))×CF","locator":"Table 2 caption"},{"field":"expression","quote":"J. oxycedrus | Total fuel | Diameter | 3.885 | 2.430 | 0.976 | 0.214 | 1.023","locator":"Table 2 (columns: species, dependent variable Y, independent variable X, a, b, r2, SEE, CF)"},{"field":"published.units","quote":"we measured four structural variables ... basal stem diameter, height, maximum crown diameter","locator":"Methods, Sampling of species-specific structural variables (measurements in cm)"},{"field":"published.output_unit","quote":"The weight of fuel fractions was measured in grams.","locator":"Methods, Sampling of species-specific structural variables"}],"check":[{"inputs":{"DRC":10},"expected":13.4002,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Total fuel here is all plant biomass of the individual (living plus dead, all size classes), pooled over four post-fire development states (5, 9, 14 and 26 years). X is basal stem diameter in cm (the paper says measured in cm; Table 2 does not repeat the unit) and Y is in grams. Individuals sampled are 10-12 per species per state; per-species n and diameter range are not stated, so left out. Equation is a species-level shrub or small-tree fuel model. The paper writes the fit as 'log Y = log a + b log X' without naming the base, but prints the back-transform as Y = exp(a) × X^b × CF (Table 2 caption), so a is taken as a natural-log intercept as the paper itself does."},{"id":"deltell-2024-p-halepensis-total","source":"deltell-2024","name":"Pinus halepensis total aboveground fuel (biomass) from basal diameter, all development states","output":{"quantity":"agb"},"expression":"exp(3.884) * DRC^2.318 * 1.027 / 1000","published":{"expression":"exp(3.884) * X^2.318 * 1.027","units":{"X":"cm"},"variables":{"X":"DRC"},"output_unit":"g"},"taxon":{"level":"species","name":"Pinus halepensis","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["ES"],"place":"Ayora, Valencia Province, eastern Spain (post-fire stands 5-26 years old)","biomes":["temperate","dryland"]},"stand":"natural","fit":{"r2":0.986,"cf":1.027,"method":"log-log regression with Sprugel (1983) correction factor"},"evidence":[{"field":"expression","quote":"Y=((exp(a))×(X^b))×CF","locator":"Table 2 caption"},{"field":"expression","quote":"P. halepensis | Total fuel | Diameter | 3.884 | 2.318 | 0.986 | 0.231 | 1.027","locator":"Table 2 (columns: species, dependent variable Y, independent variable X, a, b, r2, SEE, CF)"},{"field":"published.units","quote":"we measured four structural variables ... basal stem diameter, height, maximum crown diameter","locator":"Methods, Sampling of species-specific structural variables (measurements in cm)"},{"field":"published.output_unit","quote":"The weight of fuel fractions was measured in grams.","locator":"Methods, Sampling of species-specific structural variables"}],"check":[{"inputs":{"DRC":10},"expected":10.3841,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Total fuel here is all plant biomass of the individual (living plus dead, all size classes), pooled over four post-fire development states (5, 9, 14 and 26 years). X is basal stem diameter in cm (the paper says measured in cm; Table 2 does not repeat the unit) and Y is in grams. Individuals sampled are 10-12 per species per state; per-species n and diameter range are not stated, so left out. Equation is a species-level shrub or small-tree fuel model. The paper writes the fit as 'log Y = log a + b log X' without naming the base, but prints the back-transform as Y = exp(a) × X^b × CF (Table 2 caption), so a is taken as a natural-log intercept as the paper itself does."},{"id":"deltell-2024-q-coccifera-total","source":"deltell-2024","name":"Quercus coccifera total aboveground fuel (biomass) from basal diameter, all development states","output":{"quantity":"agb"},"expression":"exp(4.056) * DRC^2.481 * 1.069 / 1000","published":{"expression":"exp(4.056) * X^2.481 * 1.069","units":{"X":"cm"},"variables":{"X":"DRC"},"output_unit":"g"},"taxon":{"level":"species","name":"Quercus coccifera","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["ES"],"place":"Ayora, Valencia Province, eastern Spain (post-fire stands 5-26 years old)","biomes":["temperate","dryland"]},"stand":"natural","fit":{"r2":0.889,"cf":1.069,"method":"log-log regression with Sprugel (1983) correction factor"},"evidence":[{"field":"expression","quote":"Y=((exp(a))×(X^b))×CF","locator":"Table 2 caption"},{"field":"expression","quote":"Q. coccifera | Total fuel | Diameter | 4.056 | 2.481 | 0.889 | 0.365 | 1.069","locator":"Table 2 (columns: species, dependent variable Y, independent variable X, a, b, r2, SEE, CF)"},{"field":"published.units","quote":"we measured four structural variables ... basal stem diameter, height, maximum crown diameter","locator":"Methods, Sampling of species-specific structural variables (measurements in cm)"},{"field":"published.output_unit","quote":"The weight of fuel fractions was measured in grams.","locator":"Methods, Sampling of species-specific structural variables"}],"check":[{"inputs":{"DRC":10},"expected":18.6843,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Total fuel here is all plant biomass of the individual (living plus dead, all size classes), pooled over four post-fire development states (5, 9, 14 and 26 years). X is basal stem diameter in cm (the paper says measured in cm; Table 2 does not repeat the unit) and Y is in grams. Individuals sampled are 10-12 per species per state; per-species n and diameter range are not stated, so left out. Equation is a species-level shrub or small-tree fuel model. The paper writes the fit as 'log Y = log a + b log X' without naming the base, but prints the back-transform as Y = exp(a) × X^b × CF (Table 2 caption), so a is taken as a natural-log intercept as the paper itself does."},{"id":"deltell-2024-q-ilex-total","source":"deltell-2024","name":"Quercus ilex total aboveground fuel (biomass) from basal diameter, all development states","output":{"quantity":"agb"},"expression":"exp(3.812) * DRC^2.408 * 1.057 / 1000","published":{"expression":"exp(3.812) * X^2.408 * 1.057","units":{"X":"cm"},"variables":{"X":"DRC"},"output_unit":"g"},"taxon":{"level":"species","name":"Quercus ilex","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["ES"],"place":"Ayora, Valencia Province, eastern Spain (post-fire stands 5-26 years old)","biomes":["temperate","dryland"]},"stand":"natural","fit":{"r2":0.951,"cf":1.057,"method":"log-log regression with Sprugel (1983) correction factor"},"evidence":[{"field":"expression","quote":"Y=((exp(a))×(X^b))×CF","locator":"Table 2 caption"},{"field":"expression","quote":"Q. ilex | Total fuel | Diameter | 3.812 | 2.408 | 0.951 | 0.334 | 1.057","locator":"Table 2 (columns: species, dependent variable Y, independent variable X, a, b, r2, SEE, CF)"},{"field":"published.units","quote":"we measured four structural variables ... basal stem diameter, height, maximum crown diameter","locator":"Methods, Sampling of species-specific structural variables (measurements in cm)"},{"field":"published.output_unit","quote":"The weight of fuel fractions was measured in grams.","locator":"Methods, Sampling of species-specific structural variables"}],"check":[{"inputs":{"DRC":10},"expected":12.235,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Total fuel here is all plant biomass of the individual (living plus dead, all size classes), pooled over four post-fire development states (5, 9, 14 and 26 years). X is basal stem diameter in cm (the paper says measured in cm; Table 2 does not repeat the unit) and Y is in grams. Individuals sampled are 10-12 per species per state; per-species n and diameter range are not stated, so left out. Equation is a species-level shrub or small-tree fuel model. The paper writes the fit as 'log Y = log a + b log X' without naming the base, but prints the back-transform as Y = exp(a) × X^b × CF (Table 2 caption), so a is taken as a natural-log intercept as the paper itself does."},{"id":"deltell-2024-s-rosmarinus-total","source":"deltell-2024","name":"Salvia rosmarinus total aboveground fuel (biomass) from basal diameter, all development states","output":{"quantity":"agb"},"expression":"exp(3.808) * DRC^2.255 * 1.074 / 1000","published":{"expression":"exp(3.808) * X^2.255 * 1.074","units":{"X":"cm"},"variables":{"X":"DRC"},"output_unit":"g"},"taxon":{"level":"species","name":"Salvia rosmarinus","family":"Lamiaceae","group":"shrub"},"region":{"scope":"site","countries":["ES"],"place":"Ayora, Valencia Province, eastern Spain (post-fire stands 5-26 years old)","biomes":["temperate","dryland"]},"stand":"natural","fit":{"r2":0.853,"cf":1.074,"method":"log-log regression with Sprugel (1983) correction factor"},"evidence":[{"field":"expression","quote":"Y=((exp(a))×(X^b))×CF","locator":"Table 2 caption"},{"field":"expression","quote":"S. rosmarinus | Total fuel | Diameter | 3.808 | 2.255 | 0.853 | 0.378 | 1.074","locator":"Table 2 (columns: species, dependent variable Y, independent variable X, a, b, r2, SEE, CF)"},{"field":"published.units","quote":"we measured four structural variables ... basal stem diameter, height, maximum crown diameter","locator":"Methods, Sampling of species-specific structural variables (measurements in cm)"},{"field":"published.output_unit","quote":"The weight of fuel fractions was measured in grams.","locator":"Methods, Sampling of species-specific structural variables"}],"check":[{"inputs":{"DRC":10},"expected":8.70558,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Total fuel here is all plant biomass of the individual (living plus dead, all size classes), pooled over four post-fire development states (5, 9, 14 and 26 years). X is basal stem diameter in cm (the paper says measured in cm; Table 2 does not repeat the unit) and Y is in grams. Individuals sampled are 10-12 per species per state; per-species n and diameter range are not stated, so left out. Equation is a species-level shrub or small-tree fuel model. The paper writes the fit as 'log Y = log a + b log X' without naming the base, but prints the back-transform as Y = exp(a) × X^b × CF (Table 2 caption), so a is taken as a natural-log intercept as the paper itself does."},{"id":"deltell-2024-u-parviflorus-total","source":"deltell-2024","name":"Ulex parviflorus total aboveground fuel (biomass) from basal diameter, all development states","output":{"quantity":"agb"},"expression":"exp(4.335) * DRC^2.157 * 1.083 / 1000","published":{"expression":"exp(4.335) * X^2.157 * 1.083","units":{"X":"cm"},"variables":{"X":"DRC"},"output_unit":"g"},"taxon":{"level":"species","name":"Ulex parviflorus","family":"Fabaceae","group":"shrub"},"region":{"scope":"site","countries":["ES"],"place":"Ayora, Valencia Province, eastern Spain (post-fire stands 5-26 years old)","biomes":["temperate","dryland"]},"stand":"natural","fit":{"r2":0.95,"cf":1.083,"method":"log-log regression with Sprugel (1983) correction factor"},"evidence":[{"field":"expression","quote":"Y=((exp(a))×(X^b))×CF","locator":"Table 2 caption"},{"field":"expression","quote":"U. parviflorus | Total fuel | Diameter | 4.335 | 2.157 | 0.950 | 0.399 | 1.083","locator":"Table 2 (columns: species, dependent variable Y, independent variable X, a, b, r2, SEE, CF)"},{"field":"published.units","quote":"we measured four structural variables ... basal stem diameter, height, maximum crown diameter","locator":"Methods, Sampling of species-specific structural variables (measurements in cm)"},{"field":"published.output_unit","quote":"The weight of fuel fractions was measured in grams.","locator":"Methods, Sampling of species-specific structural variables"}],"check":[{"inputs":{"DRC":10},"expected":11.8657,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Total fuel here is all plant biomass of the individual (living plus dead, all size classes), pooled over four post-fire development states (5, 9, 14 and 26 years). X is basal stem diameter in cm (the paper says measured in cm; Table 2 does not repeat the unit) and Y is in grams. Individuals sampled are 10-12 per species per state; per-species n and diameter range are not stated, so left out. Equation is a species-level shrub or small-tree fuel model. The paper writes the fit as 'log Y = log a + b log X' without naming the base, but prints the back-transform as Y = exp(a) × X^b × CF (Table 2 caption), so a is taken as a natural-log intercept as the paper itself does."},{"id":"diaz-franco-2007-pinus-patula-agb","source":"diaz-franco-2007","name":"Pinus patula total aboveground biomass from DBH (Tlaxco, Tlaxcala)","output":{"quantity":"agb"},"expression":"0.0357 * D^2.6916","published":{"expression":"0.0357 * DN^2.6916","units":{"DN":"cm"},"variables":{"DN":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus patula Schl. et Cham.","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["MX"],"place":"Ejido Mariano de Matamoros, Tlaxco, Tlaxcala","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":25,"dbh_min_cm":6.7,"dbh_max_cm":64.1,"r2":0.98,"method":"power model Y = b*X^k fitted to total aboveground dry biomass (stem, branches, foliage); no correction factor stated"},"evidence":[{"field":"expression","quote":"B = 0,0357 * DN2.6916","locator":"Resultados, Estimación de biomasa, p. 29"},{"field":"model form","quote":"Y = b * Xk (1) ... donde Y es la biomasa aérea (kg), X es el DN (cm)","locator":"Materiales y Métodos, p. 28"},{"field":"fit.n_trees","quote":"Se seleccionaron 25 árboles de P. patula","locator":"Materiales y Métodos, p. 27"},{"field":"fit.dbh_range","quote":"El DN de los árboles muestreados varió en un rango de 6,7 a 64,1 cm","locator":"Resultados, p. 29"},{"field":"fit.r2","quote":"coeficiente de determinación alto (R2 =0,98)","locator":"Resultados, p. 29"}],"check":[{"inputs":{"D":10},"expected":17.55,"origin":"published","note":"Tabla 2, columna 'Presente estudio' (biomasa total, kg), p. 31"},{"inputs":{"D":20},"expected":113.38,"origin":"published","note":"Tabla 2, columna 'Presente estudio' (biomasa total, kg), p. 31"},{"inputs":{"D":50},"expected":1335.41,"origin":"published","note":"Tabla 2, columna 'Presente estudio' (biomasa total, kg), p. 31"},{"inputs":{"D":65},"expected":2705.86,"origin":"published","note":"Tabla 2, columna 'Presente estudio' (biomasa total, kg), p. 31"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Tabla 2 prints predicted total biomass at DN 5-65 cm; four rows reproduce within rounding. Decimal comma in the original. Biomass includes stem (stump cubed as a truncated cone), branches and foliage. The paper does not say whether the stand is natural or planted: trees came from a stand under forest management (aprovechamiento), recorded here as natural. The paper also prints a carbon equation (CC = 0,021 * DN 2.6451), not stored because it is not a biomass equation."},{"id":"djomo-2010-campo-d-d2h-rho","source":"djomo-2010","name":"Campo-Ma'an AGB from DBH, height and wood density (Table 3, model 5)","output":{"quantity":"agb"},"expression":"exp(-2.3325 + 0.1651 * ln(D)^2 + 0.6620 * ln(D^2 * H) + 0.1309 * ln(rho))","published":{"expression":"exp(-2.3325 + 0.1651 * ln(D)^2 + 0.6620 * ln(D^2 * H) + 0.1309 * ln(WD))","units":{"D":"cm","H":"m","WD":"g/cm3"},"variables":{"WD":"rho"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Mixed species, Campo-Ma'an lowland moist forest","group":"broadleaf"},"region":{"scope":"site","countries":["CM"],"place":"Campo-Ma'an, southern Cameroon","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":71,"dbh_min_cm":1,"dbh_max_cm":79,"r2":0.9659,"rse":0.291,"method":"log-log regression"},"evidence":[{"field":"expression","quote":"5. ln(M) = a + b(ln D)2 + c ln(D2 H) + β ln(ρ) a = −2.3325 b = 0.1651 c = 0.6620 (β = 0.1309)","locator":"Table 3, Total biomass, model 5 and footnote a"},{"field":"fit.n_trees","quote":"N 71, RSE 0.291, Adj. R2 0.9659, D (cm) 1–79","locator":"Table 3, model 5"}],"check":[{"inputs":{"D":30,"H":25,"rho":0.64},"expected":470.16,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Best-fitting site equation (lowest RSE, average error 3.4%). Printed form has the intermediate coefficient for ln(D²H) as c and β for ln(ρ) from the table footnote. Coefficients are used as printed; the paper does not state that the log-scale back-transformation correction factor is included, so none is applied. Reported R² is the adjusted R². Table 3 fit on 71 trees (7 of its equations captured). The Discussion (p. 1880) refits on 91 trees and recommends slightly different coefficients, printed without n, RSE or R²; this file keeps the Table 3 fit. The paper notes only three of the 71 trees were above 10 cm. The text calls the best three-variable fit 'model 14' (with a (ln D)³ term), but Table 3 model 5, the only place coefficients are printed, has none; this file follows Table 3."},{"id":"djomo-2010-campo-d-rho","source":"djomo-2010","name":"Campo-Ma'an AGB from DBH and wood density (Table 3, model 4)","output":{"quantity":"agb"},"expression":"exp(-1.9644 + 2.3382 * ln(D) + 0.3579 * ln(rho))","published":{"expression":"exp(-1.9644 + 2.3382 * ln(D) + 0.3579 * ln(WD))","units":{"D":"cm","WD":"g/cm3"},"variables":{"WD":"rho"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Mixed species, Campo-Ma'an lowland moist forest","group":"broadleaf"},"region":{"scope":"site","countries":["CM"],"place":"Campo-Ma'an, southern Cameroon","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":71,"dbh_min_cm":1,"dbh_max_cm":79,"r2":0.9575,"rse":0.325,"method":"log-log regression"},"evidence":[{"field":"expression","quote":"4. ln(M) = a + b ln(D) + c ln(ρ) a = −1.9644 b = 2.3382 c = 0.3579","locator":"Table 3, Total biomass, model 4"},{"field":"fit.n_trees","quote":"N 71, RSE 0.325, Adj. R2 0.9575, D (cm) 1–79","locator":"Table 3, model 4"}],"check":[{"inputs":{"D":30,"rho":0.64},"expected":339.87,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Wood density in g/cm3 (the paper reports a mean of 0.64 g cm-3 for the site). The Greek letter for density is lost in the PDF text layer; read as rho from the model list (Eq. 9). Coefficients are used as printed; the paper does not state that the log-scale back-transformation correction factor is included, so none is applied. Reported R² is the adjusted R². Table 3 fit on 71 trees (7 of its equations captured). The Discussion (p. 1880) refits on 91 trees and recommends slightly different coefficients, printed without n, RSE or R²; this file keeps the Table 3 fit. The paper notes only three of the 71 trees were above 10 cm."},{"id":"djomo-2010-campo-d","source":"djomo-2010","name":"Campo-Ma'an AGB from DBH (Table 3, model 2)","output":{"quantity":"agb"},"expression":"exp(-2.1079 + 2.3278 * ln(D))","published":{"expression":"exp(-2.1079 + 2.3278 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Mixed species, Campo-Ma'an lowland moist forest","group":"broadleaf"},"region":{"scope":"site","countries":["CM"],"place":"Campo-Ma'an, southern Cameroon","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":71,"dbh_min_cm":1,"dbh_max_cm":79,"r2":0.9562,"rse":0.33,"method":"log-log regression"},"evidence":[{"field":"expression","quote":"2. ln(M) = a + b ln(D) a = −2.1079 b = 2.3278","locator":"Table 3, Total biomass, model 2"},{"field":"fit.n_trees","quote":"N 71, RSE 0.330, Adj. R2 0.9562, D (cm) 1–79","locator":"Table 3, model 2"}],"check":[{"inputs":{"D":30},"expected":333.42,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":10},"expected":25.84,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Mixed-species site equation from 71 felled trees; the authors state that model 2 and model 1 are good predictors with DBH only. Coefficients are used as printed; the paper does not state that the log-scale back-transformation correction factor is included, so none is applied. Reported R² is the adjusted R². Table 3 fit on 71 trees (7 of its equations captured). The Discussion (p. 1880) refits on 91 trees and recommends slightly different coefficients, printed without n, RSE or R²; this file keeps the Table 3 fit. The paper notes only three of the 71 trees were above 10 cm."},{"id":"djomo-2010-campo-d2h","source":"djomo-2010","name":"Campo-Ma'an AGB from D²H (Table 3, model 3)","output":{"quantity":"agb"},"expression":"exp(-3.0788 + 0.9066 * ln(D^2 * H))","published":{"expression":"exp(-3.0788 + 0.9066 * ln(D^2 * H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Mixed species, Campo-Ma'an lowland moist forest","group":"broadleaf"},"region":{"scope":"site","countries":["CM"],"place":"Campo-Ma'an, southern Cameroon","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":71,"dbh_min_cm":1,"dbh_max_cm":79,"r2":0.9561,"rse":0.328,"method":"log-log regression"},"evidence":[{"field":"expression","quote":"3. ln(M) = a + b ln(D2 H) a = −3.0788 b = 0.9066","locator":"Table 3, Total biomass, model 3"},{"field":"fit.n_trees","quote":"N 71, RSE 0.328, Adj. R2 0.9561, D (cm) 1–79","locator":"Table 3, model 3"}],"check":[{"inputs":{"D":30,"H":25},"expected":406.05,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"H is total tree height in m. Coefficients are used as printed; the paper does not state that the log-scale back-transformation correction factor is included, so none is applied. Reported R² is the adjusted R². Table 3 fit on 71 trees (7 of its equations captured). The Discussion (p. 1880) refits on 91 trees and recommends slightly different coefficients, printed without n, RSE or R²; this file keeps the Table 3 fit. The paper notes only three of the 71 trees were above 10 cm."},{"id":"djomo-2010-pan-d-d2h-rho","source":"djomo-2010","name":"Pan moist tropical AGB from DBH, height and wood density (Table 4, model 5)","output":{"quantity":"agb"},"expression":"exp(-2.4733 + 0.2893 * ln(D)^2 - 0.0372 * ln(D)^3 + 0.7415 * ln(D^2 * H) + 0.2843 * ln(rho))","published":{"expression":"exp(-2.4733 + 0.2893 * ln(D)^2 - 0.0372 * ln(D)^3 + 0.7415 * ln(D^2 * H) + 0.2843 * ln(WD))","units":{"D":"cm","H":"m","WD":"g/cm3"},"variables":{"WD":"rho"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Mixed species, pan moist tropical forests (Campo-Ma'an plus data from Asia and South America)","group":"broadleaf"},"region":{"scope":"pantropical","countries":[],"place":"Moist tropical forests; Campo-Ma'an Cameroon, Brazil (Pará, Central Amazon), Indonesia","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":274,"dbh_min_cm":1,"dbh_max_cm":138,"r2":0.9717,"rse":0.437,"method":"log-log regression"},"evidence":[{"field":"expression","quote":"ln(M) = −2.4733 + 0.2893(ln D)2 − 0.0372(ln D)3 + 0.7415 ln(D2 H) + 0.2843 ln(ρ)","locator":"Section 3.2, model 14 / Table 4, model 5"},{"field":"fit.n_trees","quote":"N 274, RSE 0.437, Adj. R2 0.9717, D range 1–138","locator":"Table 4, model 5"}],"check":[{"inputs":{"D":30,"H":25,"rho":0.64},"expected":823.53,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Best pan moist tropical equation in the paper. Table 4 gives the ln(ρ) coefficient in the footnote (0.2843). Coefficients are used as printed; the paper does not state that the log-scale back-transformation correction factor is included, so none is applied. Reported R² is the adjusted R². Equation chosen from the paper's recommended set (7 of its equations captured)."},{"id":"djomo-2010-pan-d","source":"djomo-2010","name":"Pan moist tropical AGB from DBH (Table 4, model 2)","output":{"quantity":"agb"},"expression":"exp(-2.1801 + 2.5624 * ln(D))","published":{"expression":"exp(-2.1801 + 2.5624 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Mixed species, pan moist tropical forests (Campo-Ma'an plus data from Asia and South America)","group":"broadleaf"},"region":{"scope":"pantropical","countries":[],"place":"Moist tropical forests; Campo-Ma'an Cameroon, Brazil, Indonesia, Cambodia","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":443,"dbh_min_cm":1,"dbh_max_cm":148,"r2":0.9671,"rse":0.444,"method":"log-log regression"},"evidence":[{"field":"expression","quote":"2. ln(M) = a + b ln(D) a = −2.1801 b = 2.5624","locator":"Table 4, model 2"},{"field":"fit.n_trees","quote":"N 443, RSE 0.444, Adj. R2 0.9671, D range 1–148","locator":"Table 4, model 2"}],"check":[{"inputs":{"D":30},"expected":688.92,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Pooled with data from Brown (1997), Araújo et al. (1999), Nelson et al. (1999) and Ketterings et al. (2001); Africa contributes only the Campo-Ma'an trees. The paper reports a larger average error (29.5%) for its general equations than for Chave et al. (2005) (20.3%) in cross-site tests. Coefficients are used as printed; the paper does not state that the log-scale back-transformation correction factor is included, so none is applied. Reported R² is the adjusted R². Equation chosen from the paper's recommended set (7 of its equations captured)."},{"id":"djomo-2010-pan-d2h","source":"djomo-2010","name":"Pan moist tropical AGB from D²H (Table 4, model 3)","output":{"quantity":"agb"},"expression":"exp(-3.2249 + 0.9885 * ln(D^2 * H))","published":{"expression":"exp(-3.2249 + 0.9885 * ln(D^2 * H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Mixed species, pan moist tropical forests (Campo-Ma'an plus data from Asia and South America)","group":"broadleaf"},"region":{"scope":"pantropical","countries":[],"place":"Moist tropical forests; Campo-Ma'an Cameroon, Brazil (Pará, Central Amazon), Indonesia","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":274,"dbh_min_cm":1,"dbh_max_cm":138,"r2":0.971,"rse":0.443,"method":"log-log regression"},"evidence":[{"field":"expression","quote":"3. ln(M) = a + b ln(D2 H) a = −3.2249 b = 0.9885","locator":"Table 4, model 3"},{"field":"fit.n_trees","quote":"N 274, RSE 0.443, Adj. R2 0.9710, D range 1–138","locator":"Table 4, model 3"}],"check":[{"inputs":{"D":30,"H":25},"expected":797.22,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Pooled pan moist tropical data set (see pan-d). Coefficients are used as printed; the paper does not state that the log-scale back-transformation correction factor is included, so none is applied. Reported R² is the adjusted R². Equation chosen from the paper's recommended set (7 of its equations captured)."},{"id":"dong-2016-korean-pine-sys1-agb","source":"dong-2016","name":"Korean pine aboveground biomass from D only (sum of components, System 1)","output":{"quantity":"agb"},"expression":"exp(-2.4644 + 2.2884 * ln(D)) + exp(-6.6336 + 3.2232 * ln(D)) + exp(-5.2441 + 2.5788 * ln(D))","published":{"expression":"exp(-2.4644 + 2.2884 * ln(D)) + exp(-6.6336 + 3.2232 * ln(D)) + exp(-5.2441 + 2.5788 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus koraiensis","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Pure plantations, northeast China","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":114,"dbh_min_cm":5.4,"dbh_max_cm":33.4,"h_min_m":5.4,"h_max_m":16.2,"method":"seemingly unrelated regression (SUR) on log-transformed additive system, ln W = a + b ln D"},"evidence":[{"field":"expression","quote":"lnWa = ln(Ws + Wb + Wf) + εa; lnWt = ln(Wr + Ws + Wb + Wf) + εt","locator":"Eq. (1), additivity constraints"},{"field":"fit.n_trees","quote":"a total of 114 Korean pine trees, 90 larch trees, and 85 Mongolian pine trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":8.2},"expected":12.8526,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":16.6},"expected":71.3606,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":27.8},"expected":258.8195,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Korean pine plantations, System 1 (D only) of Table 4: ln W = a* + b* ln D, natural logarithm, coefficients as printed (a*, b*, c*). No correction factor is stated in the paper, none applied. n and D/H ranges from Table 2 (sample statistics of the fitted trees). Stem includes bark; roots exclude fine roots <5 mm. No R2 recorded (adjusted R2 only). The paper defines this total as the exact sum of its component equations (additivity constraint); the expression is that sum with the Table 4 component coefficients, not a separately printed coefficient set."},{"id":"dong-2016-korean-pine-sys1-branch","source":"dong-2016","name":"Korean pine branch biomass from D only (System 1, Table 4)","output":{"quantity":"branch_biomass"},"expression":"exp(-6.6336 + 3.2232 * ln(D))","published":{"expression":"exp(-6.6336 + 3.2232 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus koraiensis","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Pure plantations, northeast China","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":114,"dbh_min_cm":5.4,"dbh_max_cm":33.4,"h_min_m":5.4,"h_max_m":16.2,"method":"seemingly unrelated regression (SUR) on log-transformed additive system, ln W = a + b ln D"},"evidence":[{"field":"expression","quote":"lnWb = a* + b* × lnD; Table 4, Korean pine, System 1 (D only): Branch | -6.6336 | 3.2232","locator":"Eqs. (1) and Table 4"},{"field":"fit.n_trees","quote":"a total of 114 Korean pine trees, 90 larch trees, and 85 Mongolian pine trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":8.2},"expected":1.16,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":16.6},"expected":11.2646,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":27.8},"expected":59.3621,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Korean pine plantations, System 1 (D only) of Table 4: ln W = a* + b* ln D, natural logarithm, coefficients as printed (a*, b*, c*). No correction factor is stated in the paper, none applied. n and D/H ranges from Table 2 (sample statistics of the fitted trees). Stem includes bark; roots exclude fine roots <5 mm. No R2 recorded (adjusted R2 only)."},{"id":"dong-2016-korean-pine-sys1-foliage","source":"dong-2016","name":"Korean pine foliage biomass from D only (System 1, Table 4)","output":{"quantity":"foliage_biomass"},"expression":"exp(-5.2441 + 2.5788 * ln(D))","published":{"expression":"exp(-5.2441 + 2.5788 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus koraiensis","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Pure plantations, northeast China","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":114,"dbh_min_cm":5.4,"dbh_max_cm":33.4,"h_min_m":5.4,"h_max_m":16.2,"method":"seemingly unrelated regression (SUR) on log-transformed additive system, ln W = a + b ln D"},"evidence":[{"field":"expression","quote":"lnWf = a* + b* × lnD; Table 4, Korean pine, System 1 (D only): Foliage | -5.2441 | 2.5788","locator":"Eqs. (1) and Table 4"},{"field":"fit.n_trees","quote":"a total of 114 Korean pine trees, 90 larch trees, and 85 Mongolian pine trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":8.2},"expected":1.1997,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":16.6},"expected":7.3949,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":27.8},"expected":27.9524,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Korean pine plantations, System 1 (D only) of Table 4: ln W = a* + b* ln D, natural logarithm, coefficients as printed (a*, b*, c*). No correction factor is stated in the paper, none applied. n and D/H ranges from Table 2 (sample statistics of the fitted trees). Stem includes bark; roots exclude fine roots <5 mm. No R2 recorded (adjusted R2 only)."},{"id":"dong-2016-korean-pine-sys1-root","source":"dong-2016","name":"Korean pine root biomass from D only (System 1, Table 4)","output":{"quantity":"bgb"},"expression":"exp(-3.2305 + 2.2295 * ln(D))","published":{"expression":"exp(-3.2305 + 2.2295 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus koraiensis","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Pure plantations, northeast China","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":114,"dbh_min_cm":5.4,"dbh_max_cm":33.4,"h_min_m":5.4,"h_max_m":16.2,"method":"seemingly unrelated regression (SUR) on log-transformed additive system, ln W = a + b ln D"},"evidence":[{"field":"expression","quote":"lnWr = a* + b* × lnD; Table 4, Korean pine, System 1 (D only): Root | -3.2305 | 2.2295","locator":"Eqs. (1) and Table 4"},{"field":"fit.n_trees","quote":"a total of 114 Korean pine trees, 90 larch trees, and 85 Mongolian pine trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":8.2},"expected":4.3088,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":16.6},"expected":20.7607,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":27.8},"expected":65.5405,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Korean pine plantations, System 1 (D only) of Table 4: ln W = a* + b* ln D, natural logarithm, coefficients as printed (a*, b*, c*). No correction factor is stated in the paper, none applied. n and D/H ranges from Table 2 (sample statistics of the fitted trees). Stem includes bark; roots exclude fine roots <5 mm. No R2 recorded (adjusted R2 only)."},{"id":"dong-2016-korean-pine-sys1-stem","source":"dong-2016","name":"Korean pine stem biomass from D only (System 1, Table 4)","output":{"quantity":"stem_biomass"},"expression":"exp(-2.4644 + 2.2884 * ln(D))","published":{"expression":"exp(-2.4644 + 2.2884 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus koraiensis","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Pure plantations, northeast China","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":114,"dbh_min_cm":5.4,"dbh_max_cm":33.4,"h_min_m":5.4,"h_max_m":16.2,"method":"seemingly unrelated regression (SUR) on log-transformed additive system, ln W = a + b ln D"},"evidence":[{"field":"expression","quote":"lnWs = a* + b* × lnD; Table 4, Korean pine, System 1 (D only): Stem | -2.4644 | 2.2884","locator":"Eqs. (1) and Table 4"},{"field":"fit.n_trees","quote":"a total of 114 Korean pine trees, 90 larch trees, and 85 Mongolian pine trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":8.2},"expected":10.4929,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":16.6},"expected":52.7011,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":27.8},"expected":171.505,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Korean pine plantations, System 1 (D only) of Table 4: ln W = a* + b* ln D, natural logarithm, coefficients as printed (a*, b*, c*). No correction factor is stated in the paper, none applied. n and D/H ranges from Table 2 (sample statistics of the fitted trees). Stem includes bark; roots exclude fine roots <5 mm. No R2 recorded (adjusted R2 only)."},{"id":"dong-2016-korean-pine-sys1-total","source":"dong-2016","name":"Korean pine total (above + below ground) biomass from D only (sum of components, System 1)","output":{"quantity":"total_biomass"},"expression":"exp(-3.2305 + 2.2295 * ln(D)) + exp(-2.4644 + 2.2884 * ln(D)) + exp(-6.6336 + 3.2232 * ln(D)) + exp(-5.2441 + 2.5788 * ln(D))","published":{"expression":"exp(-3.2305 + 2.2295 * ln(D)) + exp(-2.4644 + 2.2884 * ln(D)) + exp(-6.6336 + 3.2232 * ln(D)) + exp(-5.2441 + 2.5788 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus koraiensis","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Pure plantations, northeast China","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":114,"dbh_min_cm":5.4,"dbh_max_cm":33.4,"h_min_m":5.4,"h_max_m":16.2,"method":"seemingly unrelated regression (SUR) on log-transformed additive system, ln W = a + b ln D"},"evidence":[{"field":"expression","quote":"lnWa = ln(Ws + Wb + Wf) + εa; lnWt = ln(Wr + Ws + Wb + Wf) + εt","locator":"Eq. (1), additivity constraints"},{"field":"fit.n_trees","quote":"a total of 114 Korean pine trees, 90 larch trees, and 85 Mongolian pine trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":8.2},"expected":17.1614,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":16.6},"expected":92.1214,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":27.8},"expected":324.36,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Korean pine plantations, System 1 (D only) of Table 4: ln W = a* + b* ln D, natural logarithm, coefficients as printed (a*, b*, c*). No correction factor is stated in the paper, none applied. n and D/H ranges from Table 2 (sample statistics of the fitted trees). Stem includes bark; roots exclude fine roots <5 mm. No R2 recorded (adjusted R2 only). The paper defines this total as the exact sum of its component equations (additivity constraint); the expression is that sum with the Table 4 component coefficients, not a separately printed coefficient set."},{"id":"dong-2016-korean-pine-sys2-agb","source":"dong-2016","name":"Korean pine aboveground biomass from D and H (sum of components, System 2)","output":{"quantity":"agb"},"expression":"exp(-3.0787 + 2.0435 * ln(D) + 0.5406 * ln(H)) + exp(-6.0711 + 3.4359 * ln(D) - 0.4892 * ln(H)) + exp(-4.9679 + 2.6265 * ln(D) - 0.1735 * ln(H))","published":{"expression":"exp(-3.0787 + 2.0435 * ln(D) + 0.5406 * ln(H)) + exp(-6.0711 + 3.4359 * ln(D) - 0.4892 * ln(H)) + exp(-4.9679 + 2.6265 * ln(D) - 0.1735 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus koraiensis","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Pure plantations, northeast China","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":114,"dbh_min_cm":5.4,"dbh_max_cm":33.4,"h_min_m":5.4,"h_max_m":16.2,"method":"seemingly unrelated regression (SUR) on log-transformed additive system, ln W = a + b ln D + c ln H"},"evidence":[{"field":"expression","quote":"lnWa = ln(Ws + Wb + Wf) + εa; lnWt = ln(Wr + Ws + Wb + Wf) + εt","locator":"Eq. (2), additivity constraints"},{"field":"fit.n_trees","quote":"a total of 114 Korean pine trees, 90 larch trees, and 85 Mongolian pine trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":8.2,"H":7.6},"expected":12.561,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":16.6,"H":10.8},"expected":70.4626,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":27.8,"H":14},"expected":256.6012,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Korean pine plantations, System 2 (D and H) of Table 4: ln W = a* + b* ln D + c* ln H, natural logarithm, coefficients as printed (a*, b*, c*). No correction factor is stated in the paper, none applied. n and D/H ranges from Table 2 (sample statistics of the fitted trees). Stem includes bark; roots exclude fine roots <5 mm. No R2 recorded (adjusted R2 only). The paper defines this total as the exact sum of its component equations (additivity constraint); the expression is that sum with the Table 4 component coefficients, not a separately printed coefficient set."},{"id":"dong-2016-korean-pine-sys2-branch","source":"dong-2016","name":"Korean pine branch biomass from D and H (System 2, Table 4)","output":{"quantity":"branch_biomass"},"expression":"exp(-6.0711 + 3.4359 * ln(D) - 0.4892 * ln(H))","published":{"expression":"exp(-6.0711 + 3.4359 * ln(D) - 0.4892 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus koraiensis","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Pure plantations, northeast China","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":114,"dbh_min_cm":5.4,"dbh_max_cm":33.4,"h_min_m":5.4,"h_max_m":16.2,"method":"seemingly unrelated regression (SUR) on log-transformed additive system, ln W = a + b ln D + c ln H"},"evidence":[{"field":"expression","quote":"lnWb = a* + b* × lnD + c* × lnH; Table 4, Korean pine, System 2 (D and H): Branch | -6.0711 | 3.4359 | -0.4892","locator":"Eqs. (2) and Table 4"},{"field":"fit.n_trees","quote":"a total of 114 Korean pine trees, 90 larch trees, and 85 Mongolian pine trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":8.2,"H":7.6},"expected":1.181,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":16.6,"H":10.8},"expected":11.2195,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":27.8,"H":14},"expected":58.1115,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Korean pine plantations, System 2 (D and H) of Table 4: ln W = a* + b* ln D + c* ln H, natural logarithm, coefficients as printed (a*, b*, c*). No correction factor is stated in the paper, none applied. n and D/H ranges from Table 2 (sample statistics of the fitted trees). Stem includes bark; roots exclude fine roots <5 mm. No R2 recorded (adjusted R2 only)."},{"id":"dong-2016-korean-pine-sys2-foliage","source":"dong-2016","name":"Korean pine foliage biomass from D and H (System 2, Table 4)","output":{"quantity":"foliage_biomass"},"expression":"exp(-4.9679 + 2.6265 * ln(D) - 0.1735 * ln(H))","published":{"expression":"exp(-4.9679 + 2.6265 * ln(D) - 0.1735 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus koraiensis","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Pure plantations, northeast China","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":114,"dbh_min_cm":5.4,"dbh_max_cm":33.4,"h_min_m":5.4,"h_max_m":16.2,"method":"seemingly unrelated regression (SUR) on log-transformed additive system, ln W = a + b ln D + c ln H"},"evidence":[{"field":"expression","quote":"lnWf = a* + b* × lnD + c* × lnH; Table 4, Korean pine, System 2 (D and H): Foliage | -4.9679 | 2.6265 | -0.1735","locator":"Eqs. (2) and Table 4"},{"field":"fit.n_trees","quote":"a total of 114 Korean pine trees, 90 larch trees, and 85 Mongolian pine trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":8.2,"H":7.6},"expected":1.2296,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":16.6,"H":10.8},"expected":7.3754,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":27.8,"H":14},"expected":27.3149,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Korean pine plantations, System 2 (D and H) of Table 4: ln W = a* + b* ln D + c* ln H, natural logarithm, coefficients as printed (a*, b*, c*). No correction factor is stated in the paper, none applied. n and D/H ranges from Table 2 (sample statistics of the fitted trees). Stem includes bark; roots exclude fine roots <5 mm. No R2 recorded (adjusted R2 only)."},{"id":"dong-2016-korean-pine-sys2-root","source":"dong-2016","name":"Korean pine root biomass from D and H (System 2, Table 4)","output":{"quantity":"bgb"},"expression":"exp(-3.6081 + 2.2338 * ln(D) + 0.1476 * ln(H))","published":{"expression":"exp(-3.6081 + 2.2338 * ln(D) + 0.1476 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus koraiensis","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Pure plantations, northeast China","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":114,"dbh_min_cm":5.4,"dbh_max_cm":33.4,"h_min_m":5.4,"h_max_m":16.2,"method":"seemingly unrelated regression (SUR) on log-transformed additive system, ln W = a + b ln D + c ln H"},"evidence":[{"field":"expression","quote":"lnWr = a* + b* × lnD + c* × lnH; Table 4, Korean pine, System 2 (D and H): Root | -3.6081 | 2.2338 | 0.1476","locator":"Eqs. (2) and Table 4"},{"field":"fit.n_trees","quote":"a total of 114 Korean pine trees, 90 larch trees, and 85 Mongolian pine trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":8.2,"H":7.6},"expected":4.0208,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":16.6,"H":10.8},"expected":20.466,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":27.8,"H":14},"expected":67.2818,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Korean pine plantations, System 2 (D and H) of Table 4: ln W = a* + b* ln D + c* ln H, natural logarithm, coefficients as printed (a*, b*, c*). No correction factor is stated in the paper, none applied. n and D/H ranges from Table 2 (sample statistics of the fitted trees). Stem includes bark; roots exclude fine roots <5 mm. No R2 recorded (adjusted R2 only)."},{"id":"dong-2016-korean-pine-sys2-stem","source":"dong-2016","name":"Korean pine stem biomass from D and H (System 2, Table 4)","output":{"quantity":"stem_biomass"},"expression":"exp(-3.0787 + 2.0435 * ln(D) + 0.5406 * ln(H))","published":{"expression":"exp(-3.0787 + 2.0435 * ln(D) + 0.5406 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus koraiensis","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Pure plantations, northeast China","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":114,"dbh_min_cm":5.4,"dbh_max_cm":33.4,"h_min_m":5.4,"h_max_m":16.2,"method":"seemingly unrelated regression (SUR) on log-transformed additive system, ln W = a + b ln D + c ln H"},"evidence":[{"field":"expression","quote":"lnWs = a* + b* × lnD + c* × lnH; Table 4, Korean pine, System 2 (D and H): Stem | -3.0787 | 2.0435 | 0.5406","locator":"Eqs. (2) and Table 4"},{"field":"fit.n_trees","quote":"a total of 114 Korean pine trees, 90 larch trees, and 85 Mongolian pine trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":8.2,"H":7.6},"expected":10.1504,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":16.6,"H":10.8},"expected":51.8677,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":27.8,"H":14},"expected":171.1748,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Korean pine plantations, System 2 (D and H) of Table 4: ln W = a* + b* ln D + c* ln H, natural logarithm, coefficients as printed (a*, b*, c*). No correction factor is stated in the paper, none applied. n and D/H ranges from Table 2 (sample statistics of the fitted trees). Stem includes bark; roots exclude fine roots <5 mm. No R2 recorded (adjusted R2 only)."},{"id":"dong-2016-korean-pine-sys2-total","source":"dong-2016","name":"Korean pine total (above + below ground) biomass from D and H (sum of components, System 2)","output":{"quantity":"total_biomass"},"expression":"exp(-3.6081 + 2.2338 * ln(D) + 0.1476 * ln(H)) + exp(-3.0787 + 2.0435 * ln(D) + 0.5406 * ln(H)) + exp(-6.0711 + 3.4359 * ln(D) - 0.4892 * ln(H)) + exp(-4.9679 + 2.6265 * ln(D) - 0.1735 * ln(H))","published":{"expression":"exp(-3.6081 + 2.2338 * ln(D) + 0.1476 * ln(H)) + exp(-3.0787 + 2.0435 * ln(D) + 0.5406 * ln(H)) + exp(-6.0711 + 3.4359 * ln(D) - 0.4892 * ln(H)) + exp(-4.9679 + 2.6265 * ln(D) - 0.1735 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus koraiensis","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Pure plantations, northeast China","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":114,"dbh_min_cm":5.4,"dbh_max_cm":33.4,"h_min_m":5.4,"h_max_m":16.2,"method":"seemingly unrelated regression (SUR) on log-transformed additive system, ln W = a + b ln D + c ln H"},"evidence":[{"field":"expression","quote":"lnWa = ln(Ws + Wb + Wf) + εa; lnWt = ln(Wr + Ws + Wb + Wf) + εt","locator":"Eq. (2), additivity constraints"},{"field":"fit.n_trees","quote":"a total of 114 Korean pine trees, 90 larch trees, and 85 Mongolian pine trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":8.2,"H":7.6},"expected":16.5818,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":16.6,"H":10.8},"expected":90.9286,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":27.8,"H":14},"expected":323.8831,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Korean pine plantations, System 2 (D and H) of Table 4: ln W = a* + b* ln D + c* ln H, natural logarithm, coefficients as printed (a*, b*, c*). No correction factor is stated in the paper, none applied. n and D/H ranges from Table 2 (sample statistics of the fitted trees). Stem includes bark; roots exclude fine roots <5 mm. No R2 recorded (adjusted R2 only). The paper defines this total as the exact sum of its component equations (additivity constraint); the expression is that sum with the Table 4 component coefficients, not a separately printed coefficient set."},{"id":"dong-2016-larch-sys1-agb","source":"dong-2016","name":"Larch (Larix gmelinii) aboveground biomass from D only (sum of components, System 1)","output":{"quantity":"agb"},"expression":"exp(-3.7797 + 2.8778 * ln(D)) + exp(-3.7266 + 2.1147 * ln(D)) + exp(-2.3186 + 1.2549 * ln(D))","published":{"expression":"exp(-3.7797 + 2.8778 * ln(D)) + exp(-3.7266 + 2.1147 * ln(D)) + exp(-2.3186 + 1.2549 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix gmelinii","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Pure plantations, northeast China","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":90,"dbh_min_cm":7.6,"dbh_max_cm":35.7,"h_min_m":8.3,"h_max_m":27,"method":"seemingly unrelated regression (SUR) on log-transformed additive system, ln W = a + b ln D"},"evidence":[{"field":"expression","quote":"lnWa = ln(Ws + Wb + Wf) + εa; lnWt = ln(Wr + Ws + Wb + Wf) + εt","locator":"Eq. (1), additivity constraints"},{"field":"fit.n_trees","quote":"a total of 114 Korean pine trees, 90 larch trees, and 85 Mongolian pine trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":10.4},"expected":24.5547,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":18.8},"expected":121.8121,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":30.1},"expected":449.9783,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Larch (Larix gmelinii) plantations, System 1 (D only) of Table 4: ln W = a* + b* ln D, natural logarithm, coefficients as printed (a*, b*, c*). No correction factor is stated in the paper, none applied. n and D/H ranges from Table 2 (sample statistics of the fitted trees). Stem includes bark; roots exclude fine roots <5 mm. No R2 recorded (adjusted R2 only). The paper defines this total as the exact sum of its component equations (additivity constraint); the expression is that sum with the Table 4 component coefficients, not a separately printed coefficient set."},{"id":"dong-2016-larch-sys1-branch","source":"dong-2016","name":"Larch (Larix gmelinii) branch biomass from D only (System 1, Table 4)","output":{"quantity":"branch_biomass"},"expression":"exp(-3.7266 + 2.1147 * ln(D))","published":{"expression":"exp(-3.7266 + 2.1147 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix gmelinii","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Pure plantations, northeast China","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":90,"dbh_min_cm":7.6,"dbh_max_cm":35.7,"h_min_m":8.3,"h_max_m":27,"method":"seemingly unrelated regression (SUR) on log-transformed additive system, ln W = a + b ln D"},"evidence":[{"field":"expression","quote":"lnWb = a* + b* × lnD; Table 4, Larch, System 1 (D only): Branch | -3.7266 | 2.1147","locator":"Eqs. (1) and Table 4"},{"field":"fit.n_trees","quote":"a total of 114 Korean pine trees, 90 larch trees, and 85 Mongolian pine trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":10.4},"expected":3.4063,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":18.8},"expected":11.913,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":30.1},"expected":32.2317,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Larch (Larix gmelinii) plantations, System 1 (D only) of Table 4: ln W = a* + b* ln D, natural logarithm, coefficients as printed (a*, b*, c*). No correction factor is stated in the paper, none applied. n and D/H ranges from Table 2 (sample statistics of the fitted trees). Stem includes bark; roots exclude fine roots <5 mm. No R2 recorded (adjusted R2 only)."},{"id":"dong-2016-larch-sys1-foliage","source":"dong-2016","name":"Larch (Larix gmelinii) foliage biomass from D only (System 1, Table 4)","output":{"quantity":"foliage_biomass"},"expression":"exp(-2.3186 + 1.2549 * ln(D))","published":{"expression":"exp(-2.3186 + 1.2549 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix gmelinii","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Pure plantations, northeast China","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":90,"dbh_min_cm":7.6,"dbh_max_cm":35.7,"h_min_m":8.3,"h_max_m":27,"method":"seemingly unrelated regression (SUR) on log-transformed additive system, ln W = a + b ln D"},"evidence":[{"field":"expression","quote":"lnWf = a* + b* × lnD; Table 4, Larch, System 1 (D only): Foliage | -2.3186 | 1.2549","locator":"Eqs. (1) and Table 4"},{"field":"fit.n_trees","quote":"a total of 114 Korean pine trees, 90 larch trees, and 85 Mongolian pine trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":10.4},"expected":1.8592,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":18.8},"expected":3.9083,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":30.1},"expected":7.055,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Larch (Larix gmelinii) plantations, System 1 (D only) of Table 4: ln W = a* + b* ln D, natural logarithm, coefficients as printed (a*, b*, c*). No correction factor is stated in the paper, none applied. n and D/H ranges from Table 2 (sample statistics of the fitted trees). Stem includes bark; roots exclude fine roots <5 mm. No R2 recorded (adjusted R2 only)."},{"id":"dong-2016-larch-sys1-root","source":"dong-2016","name":"Larch (Larix gmelinii) root biomass from D only (System 1, Table 4)","output":{"quantity":"bgb"},"expression":"exp(-5.351 + 2.9914 * ln(D))","published":{"expression":"exp(-5.351 + 2.9914 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix gmelinii","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Pure plantations, northeast China","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":90,"dbh_min_cm":7.6,"dbh_max_cm":35.7,"h_min_m":8.3,"h_max_m":27,"method":"seemingly unrelated regression (SUR) on log-transformed additive system, ln W = a + b ln D"},"evidence":[{"field":"expression","quote":"lnWr = a* + b* × lnD; Table 4, Larch, System 1 (D only): Root | -5.351 | 2.9914","locator":"Eqs. (1) and Table 4"},{"field":"fit.n_trees","quote":"a total of 114 Korean pine trees, 90 larch trees, and 85 Mongolian pine trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":10.4},"expected":5.2293,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":18.8},"expected":30.7331,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":30.1},"expected":125.6244,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Larch (Larix gmelinii) plantations, System 1 (D only) of Table 4: ln W = a* + b* ln D, natural logarithm, coefficients as printed (a*, b*, c*). No correction factor is stated in the paper, none applied. n and D/H ranges from Table 2 (sample statistics of the fitted trees). Stem includes bark; roots exclude fine roots <5 mm. No R2 recorded (adjusted R2 only)."},{"id":"dong-2016-larch-sys1-stem","source":"dong-2016","name":"Larch (Larix gmelinii) stem biomass from D only (System 1, Table 4)","output":{"quantity":"stem_biomass"},"expression":"exp(-3.7797 + 2.8778 * ln(D))","published":{"expression":"exp(-3.7797 + 2.8778 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix gmelinii","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Pure plantations, northeast China","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":90,"dbh_min_cm":7.6,"dbh_max_cm":35.7,"h_min_m":8.3,"h_max_m":27,"method":"seemingly unrelated regression (SUR) on log-transformed additive system, ln W = a + b ln D"},"evidence":[{"field":"expression","quote":"lnWs = a* + b* × lnD; Table 4, Larch, System 1 (D only): Stem | -3.7797 | 2.8778","locator":"Eqs. (1) and Table 4"},{"field":"fit.n_trees","quote":"a total of 114 Korean pine trees, 90 larch trees, and 85 Mongolian pine trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":10.4},"expected":19.2893,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":18.8},"expected":105.9909,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":30.1},"expected":410.6916,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Larch (Larix gmelinii) plantations, System 1 (D only) of Table 4: ln W = a* + b* ln D, natural logarithm, coefficients as printed (a*, b*, c*). No correction factor is stated in the paper, none applied. n and D/H ranges from Table 2 (sample statistics of the fitted trees). Stem includes bark; roots exclude fine roots <5 mm. No R2 recorded (adjusted R2 only)."},{"id":"dong-2016-larch-sys1-total","source":"dong-2016","name":"Larch (Larix gmelinii) total (above + below ground) biomass from D only (sum of components, System 1)","output":{"quantity":"total_biomass"},"expression":"exp(-5.351 + 2.9914 * ln(D)) + exp(-3.7797 + 2.8778 * ln(D)) + exp(-3.7266 + 2.1147 * ln(D)) + exp(-2.3186 + 1.2549 * ln(D))","published":{"expression":"exp(-5.351 + 2.9914 * ln(D)) + exp(-3.7797 + 2.8778 * ln(D)) + exp(-3.7266 + 2.1147 * ln(D)) + exp(-2.3186 + 1.2549 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix gmelinii","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Pure plantations, northeast China","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":90,"dbh_min_cm":7.6,"dbh_max_cm":35.7,"h_min_m":8.3,"h_max_m":27,"method":"seemingly unrelated regression (SUR) on log-transformed additive system, ln W = a + b ln D"},"evidence":[{"field":"expression","quote":"lnWa = ln(Ws + Wb + Wf) + εa; lnWt = ln(Wr + Ws + Wb + Wf) + εt","locator":"Eq. (1), additivity constraints"},{"field":"fit.n_trees","quote":"a total of 114 Korean pine trees, 90 larch trees, and 85 Mongolian pine trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":10.4},"expected":29.784,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":18.8},"expected":152.5452,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":30.1},"expected":575.6027,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Larch (Larix gmelinii) plantations, System 1 (D only) of Table 4: ln W = a* + b* ln D, natural logarithm, coefficients as printed (a*, b*, c*). No correction factor is stated in the paper, none applied. n and D/H ranges from Table 2 (sample statistics of the fitted trees). Stem includes bark; roots exclude fine roots <5 mm. No R2 recorded (adjusted R2 only). The paper defines this total as the exact sum of its component equations (additivity constraint); the expression is that sum with the Table 4 component coefficients, not a separately printed coefficient set."},{"id":"dong-2016-larch-sys2-agb","source":"dong-2016","name":"Larch (Larix gmelinii) aboveground biomass from D and H (sum of components, System 2)","output":{"quantity":"agb"},"expression":"exp(-4.5363 + 1.7008 * ln(D) + 1.4804 * ln(H)) + exp(-3.3632 + 2.6728 * ln(D) - 0.7052 * ln(H)) + exp(-2.2879 + 1.3369 * ln(D) - 0.0922 * ln(H))","published":{"expression":"exp(-4.5363 + 1.7008 * ln(D) + 1.4804 * ln(H)) + exp(-3.3632 + 2.6728 * ln(D) - 0.7052 * ln(H)) + exp(-2.2879 + 1.3369 * ln(D) - 0.0922 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix gmelinii","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Pure plantations, northeast China","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":90,"dbh_min_cm":7.6,"dbh_max_cm":35.7,"h_min_m":8.3,"h_max_m":27,"method":"seemingly unrelated regression (SUR) on log-transformed additive system, ln W = a + b ln D + c ln H"},"evidence":[{"field":"expression","quote":"lnWa = ln(Ws + Wb + Wf) + εa; lnWt = ln(Wr + Ws + Wb + Wf) + εt","locator":"Eq. (2), additivity constraints"},{"field":"fit.n_trees","quote":"a total of 114 Korean pine trees, 90 larch trees, and 85 Mongolian pine trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":10.4,"H":12},"expected":27.7522,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":18.8,"H":17.6},"expected":125.4567,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":30.1,"H":23.3},"expected":411.4348,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Larch (Larix gmelinii) plantations, System 2 (D and H) of Table 4: ln W = a* + b* ln D + c* ln H, natural logarithm, coefficients as printed (a*, b*, c*). No correction factor is stated in the paper, none applied. n and D/H ranges from Table 2 (sample statistics of the fitted trees). Stem includes bark; roots exclude fine roots <5 mm. No R2 recorded (adjusted R2 only). The paper defines this total as the exact sum of its component equations (additivity constraint); the expression is that sum with the Table 4 component coefficients, not a separately printed coefficient set."},{"id":"dong-2016-larch-sys2-branch","source":"dong-2016","name":"Larch (Larix gmelinii) branch biomass from D and H (System 2, Table 4)","output":{"quantity":"branch_biomass"},"expression":"exp(-3.3632 + 2.6728 * ln(D) - 0.7052 * ln(H))","published":{"expression":"exp(-3.3632 + 2.6728 * ln(D) - 0.7052 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix gmelinii","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Pure plantations, northeast China","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":90,"dbh_min_cm":7.6,"dbh_max_cm":35.7,"h_min_m":8.3,"h_max_m":27,"method":"seemingly unrelated regression (SUR) on log-transformed additive system, ln W = a + b ln D + c ln H"},"evidence":[{"field":"expression","quote":"lnWb = a* + b* × lnD + c* × lnH; Table 4, Larch, System 2 (D and H): Branch | -3.3632 | 2.6728 | -0.7052","locator":"Eqs. (2) and Table 4"},{"field":"fit.n_trees","quote":"a total of 114 Korean pine trees, 90 larch trees, and 85 Mongolian pine trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":10.4,"H":12},"expected":3.1381,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":18.8,"H":17.6},"expected":11.6577,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":30.1,"H":23.3},"expected":33.6538,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Larch (Larix gmelinii) plantations, System 2 (D and H) of Table 4: ln W = a* + b* ln D + c* ln H, natural logarithm, coefficients as printed (a*, b*, c*). No correction factor is stated in the paper, none applied. n and D/H ranges from Table 2 (sample statistics of the fitted trees). Stem includes bark; roots exclude fine roots <5 mm. No R2 recorded (adjusted R2 only)."},{"id":"dong-2016-larch-sys2-foliage","source":"dong-2016","name":"Larch (Larix gmelinii) foliage biomass from D and H (System 2, Table 4)","output":{"quantity":"foliage_biomass"},"expression":"exp(-2.2879 + 1.3369 * ln(D) - 0.0922 * ln(H))","published":{"expression":"exp(-2.2879 + 1.3369 * ln(D) - 0.0922 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix gmelinii","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Pure plantations, northeast China","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":90,"dbh_min_cm":7.6,"dbh_max_cm":35.7,"h_min_m":8.3,"h_max_m":27,"method":"seemingly unrelated regression (SUR) on log-transformed additive system, ln W = a + b ln D + c ln H"},"evidence":[{"field":"expression","quote":"lnWf = a* + b* × lnD + c* × lnH; Table 4, Larch, System 2 (D and H): Foliage | -2.2879 | 1.3369 | -0.0922","locator":"Eqs. (2) and Table 4"},{"field":"fit.n_trees","quote":"a total of 114 Korean pine trees, 90 larch trees, and 85 Mongolian pine trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":10.4,"H":12},"expected":1.8473,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":18.8,"H":17.6},"expected":3.9352,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":30.1,"H":23.3},"expected":7.1945,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Larch (Larix gmelinii) plantations, System 2 (D and H) of Table 4: ln W = a* + b* ln D + c* ln H, natural logarithm, coefficients as printed (a*, b*, c*). No correction factor is stated in the paper, none applied. n and D/H ranges from Table 2 (sample statistics of the fitted trees). Stem includes bark; roots exclude fine roots <5 mm. No R2 recorded (adjusted R2 only)."},{"id":"dong-2016-larch-sys2-root","source":"dong-2016","name":"Larch (Larix gmelinii) root biomass from D and H (System 2, Table 4)","output":{"quantity":"bgb"},"expression":"exp(-5.4519 + 2.6643 * ln(D) + 0.3755 * ln(H))","published":{"expression":"exp(-5.4519 + 2.6643 * ln(D) + 0.3755 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix gmelinii","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Pure plantations, northeast China","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":90,"dbh_min_cm":7.6,"dbh_max_cm":35.7,"h_min_m":8.3,"h_max_m":27,"method":"seemingly unrelated regression (SUR) on log-transformed additive system, ln W = a + b ln D + c ln H"},"evidence":[{"field":"expression","quote":"lnWr = a* + b* × lnD + c* × lnH; Table 4, Larch, System 2 (D and H): Root | -5.4519 | 2.6643 | 0.3755","locator":"Eqs. (2) and Table 4"},{"field":"fit.n_trees","quote":"a total of 114 Korean pine trees, 90 larch trees, and 85 Mongolian pine trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":10.4,"H":12},"expected":5.5871,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":18.8,"H":17.6},"expected":31.2391,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":30.1,"H":23.3},"expected":121.6345,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Larch (Larix gmelinii) plantations, System 2 (D and H) of Table 4: ln W = a* + b* ln D + c* ln H, natural logarithm, coefficients as printed (a*, b*, c*). No correction factor is stated in the paper, none applied. n and D/H ranges from Table 2 (sample statistics of the fitted trees). Stem includes bark; roots exclude fine roots <5 mm. No R2 recorded (adjusted R2 only)."},{"id":"dong-2016-larch-sys2-stem","source":"dong-2016","name":"Larch (Larix gmelinii) stem biomass from D and H (System 2, Table 4)","output":{"quantity":"stem_biomass"},"expression":"exp(-4.5363 + 1.7008 * ln(D) + 1.4804 * ln(H))","published":{"expression":"exp(-4.5363 + 1.7008 * ln(D) + 1.4804 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix gmelinii","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Pure plantations, northeast China","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":90,"dbh_min_cm":7.6,"dbh_max_cm":35.7,"h_min_m":8.3,"h_max_m":27,"method":"seemingly unrelated regression (SUR) on log-transformed additive system, ln W = a + b ln D + c ln H"},"evidence":[{"field":"expression","quote":"lnWs = a* + b* × lnD + c* × lnH; Table 4, Larch, System 2 (D and H): Stem | -4.5363 | 1.7008 | 1.4804","locator":"Eqs. (2) and Table 4"},{"field":"fit.n_trees","quote":"a total of 114 Korean pine trees, 90 larch trees, and 85 Mongolian pine trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":10.4,"H":12},"expected":22.7667,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":18.8,"H":17.6},"expected":109.8638,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":30.1,"H":23.3},"expected":370.5865,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Larch (Larix gmelinii) plantations, System 2 (D and H) of Table 4: ln W = a* + b* ln D + c* ln H, natural logarithm, coefficients as printed (a*, b*, c*). No correction factor is stated in the paper, none applied. n and D/H ranges from Table 2 (sample statistics of the fitted trees). Stem includes bark; roots exclude fine roots <5 mm. No R2 recorded (adjusted R2 only)."},{"id":"dong-2016-larch-sys2-total","source":"dong-2016","name":"Larch (Larix gmelinii) total (above + below ground) biomass from D and H (sum of components, System 2)","output":{"quantity":"total_biomass"},"expression":"exp(-5.4519 + 2.6643 * ln(D) + 0.3755 * ln(H)) + exp(-4.5363 + 1.7008 * ln(D) + 1.4804 * ln(H)) + exp(-3.3632 + 2.6728 * ln(D) - 0.7052 * ln(H)) + exp(-2.2879 + 1.3369 * ln(D) - 0.0922 * ln(H))","published":{"expression":"exp(-5.4519 + 2.6643 * ln(D) + 0.3755 * ln(H)) + exp(-4.5363 + 1.7008 * ln(D) + 1.4804 * ln(H)) + exp(-3.3632 + 2.6728 * ln(D) - 0.7052 * ln(H)) + exp(-2.2879 + 1.3369 * ln(D) - 0.0922 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix gmelinii","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Pure plantations, northeast China","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":90,"dbh_min_cm":7.6,"dbh_max_cm":35.7,"h_min_m":8.3,"h_max_m":27,"method":"seemingly unrelated regression (SUR) on log-transformed additive system, ln W = a + b ln D + c ln H"},"evidence":[{"field":"expression","quote":"lnWa = ln(Ws + Wb + Wf) + εa; lnWt = ln(Wr + Ws + Wb + Wf) + εt","locator":"Eq. (2), additivity constraints"},{"field":"fit.n_trees","quote":"a total of 114 Korean pine trees, 90 larch trees, and 85 Mongolian pine trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":10.4,"H":12},"expected":33.3392,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":18.8,"H":17.6},"expected":156.6958,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":30.1,"H":23.3},"expected":533.0693,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Larch (Larix gmelinii) plantations, System 2 (D and H) of Table 4: ln W = a* + b* ln D + c* ln H, natural logarithm, coefficients as printed (a*, b*, c*). No correction factor is stated in the paper, none applied. n and D/H ranges from Table 2 (sample statistics of the fitted trees). Stem includes bark; roots exclude fine roots <5 mm. No R2 recorded (adjusted R2 only). The paper defines this total as the exact sum of its component equations (additivity constraint); the expression is that sum with the Table 4 component coefficients, not a separately printed coefficient set."},{"id":"dong-2016-mongolian-pine-sys1-agb","source":"dong-2016","name":"Mongolian pine (Pinus sylvestris var. mongolica) aboveground biomass from D only (sum of components, System 1)","output":{"quantity":"agb"},"expression":"exp(-3.5715 + 2.7203 * ln(D)) + exp(-4.82 + 2.5112 * ln(D)) + exp(-3.9112 + 2.0327 * ln(D))","published":{"expression":"exp(-3.5715 + 2.7203 * ln(D)) + exp(-4.82 + 2.5112 * ln(D)) + exp(-3.9112 + 2.0327 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus sylvestris var. mongolica","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Pure plantations, northeast China","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":85,"dbh_min_cm":6,"dbh_max_cm":38.7,"h_min_m":3.5,"h_max_m":22.3,"method":"seemingly unrelated regression (SUR) on log-transformed additive system, ln W = a + b ln D"},"evidence":[{"field":"expression","quote":"lnWa = ln(Ws + Wb + Wf) + εa; lnWt = ln(Wr + Ws + Wb + Wf) + εt","locator":"Eq. (1), additivity constraints"},{"field":"fit.n_trees","quote":"a total of 114 Korean pine trees, 90 larch trees, and 85 Mongolian pine trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":9.3},"expected":16.1631,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":19.1},"expected":107.1794,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":32.2},"expected":428.0089,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Mongolian pine (Pinus sylvestris var. mongolica) plantations, System 1 (D only) of Table 4: ln W = a* + b* ln D, natural logarithm, coefficients as printed (a*, b*, c*). No correction factor is stated in the paper, none applied. n and D/H ranges from Table 2 (sample statistics of the fitted trees). Stem includes bark; roots exclude fine roots <5 mm. No R2 recorded (adjusted R2 only). The paper defines this total as the exact sum of its component equations (additivity constraint); the expression is that sum with the Table 4 component coefficients, not a separately printed coefficient set."},{"id":"dong-2016-mongolian-pine-sys1-branch","source":"dong-2016","name":"Mongolian pine (Pinus sylvestris var. mongolica) branch biomass from D only (System 1, Table 4)","output":{"quantity":"branch_biomass"},"expression":"exp(-4.82 + 2.5112 * ln(D))","published":{"expression":"exp(-4.82 + 2.5112 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus sylvestris var. mongolica","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Pure plantations, northeast China","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":85,"dbh_min_cm":6,"dbh_max_cm":38.7,"h_min_m":3.5,"h_max_m":22.3,"method":"seemingly unrelated regression (SUR) on log-transformed additive system, ln W = a + b ln D"},"evidence":[{"field":"expression","quote":"lnWb = a* + b* × lnD; Table 4, Mongolian pine, System 1 (D only): Branch | -4.82 | 2.5112","locator":"Eqs. (1) and Table 4"},{"field":"fit.n_trees","quote":"a total of 114 Korean pine trees, 90 larch trees, and 85 Mongolian pine trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":9.3},"expected":2.1815,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":19.1},"expected":13.2933,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":32.2},"expected":49.3433,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Mongolian pine (Pinus sylvestris var. mongolica) plantations, System 1 (D only) of Table 4: ln W = a* + b* ln D, natural logarithm, coefficients as printed (a*, b*, c*). No correction factor is stated in the paper, none applied. n and D/H ranges from Table 2 (sample statistics of the fitted trees). Stem includes bark; roots exclude fine roots <5 mm. No R2 recorded (adjusted R2 only)."},{"id":"dong-2016-mongolian-pine-sys1-foliage","source":"dong-2016","name":"Mongolian pine (Pinus sylvestris var. mongolica) foliage biomass from D only (System 1, Table 4)","output":{"quantity":"foliage_biomass"},"expression":"exp(-3.9112 + 2.0327 * ln(D))","published":{"expression":"exp(-3.9112 + 2.0327 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus sylvestris var. mongolica","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Pure plantations, northeast China","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":85,"dbh_min_cm":6,"dbh_max_cm":38.7,"h_min_m":3.5,"h_max_m":22.3,"method":"seemingly unrelated regression (SUR) on log-transformed additive system, ln W = a + b ln D"},"evidence":[{"field":"expression","quote":"lnWf = a* + b* × lnD; Table 4, Mongolian pine, System 1 (D only): Foliage | -3.9112 | 2.0327","locator":"Eqs. (1) and Table 4"},{"field":"fit.n_trees","quote":"a total of 114 Korean pine trees, 90 larch trees, and 85 Mongolian pine trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":9.3},"expected":1.8622,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":19.1},"expected":8.0416,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":32.2},"expected":23.2491,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Mongolian pine (Pinus sylvestris var. mongolica) plantations, System 1 (D only) of Table 4: ln W = a* + b* ln D, natural logarithm, coefficients as printed (a*, b*, c*). No correction factor is stated in the paper, none applied. n and D/H ranges from Table 2 (sample statistics of the fitted trees). Stem includes bark; roots exclude fine roots <5 mm. No R2 recorded (adjusted R2 only)."},{"id":"dong-2016-mongolian-pine-sys1-root","source":"dong-2016","name":"Mongolian pine (Pinus sylvestris var. mongolica) root biomass from D only (System 1, Table 4)","output":{"quantity":"bgb"},"expression":"exp(-2.6309 + 1.9513 * ln(D))","published":{"expression":"exp(-2.6309 + 1.9513 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus sylvestris var. mongolica","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Pure plantations, northeast China","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":85,"dbh_min_cm":6,"dbh_max_cm":38.7,"h_min_m":3.5,"h_max_m":22.3,"method":"seemingly unrelated regression (SUR) on log-transformed additive system, ln W = a + b ln D"},"evidence":[{"field":"expression","quote":"lnWr = a* + b* × lnD; Table 4, Mongolian pine, System 1 (D only): Root | -2.6309 | 1.9513","locator":"Eqs. (1) and Table 4"},{"field":"fit.n_trees","quote":"a total of 114 Korean pine trees, 90 larch trees, and 85 Mongolian pine trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":9.3},"expected":5.5875,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":19.1},"expected":22.756,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":32.2},"expected":63.0513,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Mongolian pine (Pinus sylvestris var. mongolica) plantations, System 1 (D only) of Table 4: ln W = a* + b* ln D, natural logarithm, coefficients as printed (a*, b*, c*). No correction factor is stated in the paper, none applied. n and D/H ranges from Table 2 (sample statistics of the fitted trees). Stem includes bark; roots exclude fine roots <5 mm. No R2 recorded (adjusted R2 only)."},{"id":"dong-2016-mongolian-pine-sys1-stem","source":"dong-2016","name":"Mongolian pine (Pinus sylvestris var. mongolica) stem biomass from D only (System 1, Table 4)","output":{"quantity":"stem_biomass"},"expression":"exp(-3.5715 + 2.7203 * ln(D))","published":{"expression":"exp(-3.5715 + 2.7203 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus sylvestris var. mongolica","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Pure plantations, northeast China","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":85,"dbh_min_cm":6,"dbh_max_cm":38.7,"h_min_m":3.5,"h_max_m":22.3,"method":"seemingly unrelated regression (SUR) on log-transformed additive system, ln W = a + b ln D"},"evidence":[{"field":"expression","quote":"lnWs = a* + b* × lnD; Table 4, Mongolian pine, System 1 (D only): Stem | -3.5715 | 2.7203","locator":"Eqs. (1) and Table 4"},{"field":"fit.n_trees","quote":"a total of 114 Korean pine trees, 90 larch trees, and 85 Mongolian pine trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":9.3},"expected":12.1194,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":19.1},"expected":85.8445,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":32.2},"expected":355.4165,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Mongolian pine (Pinus sylvestris var. mongolica) plantations, System 1 (D only) of Table 4: ln W = a* + b* ln D, natural logarithm, coefficients as printed (a*, b*, c*). No correction factor is stated in the paper, none applied. n and D/H ranges from Table 2 (sample statistics of the fitted trees). Stem includes bark; roots exclude fine roots <5 mm. No R2 recorded (adjusted R2 only)."},{"id":"dong-2016-mongolian-pine-sys1-total","source":"dong-2016","name":"Mongolian pine (Pinus sylvestris var. mongolica) total (above + below ground) biomass from D only (sum of components, System 1)","output":{"quantity":"total_biomass"},"expression":"exp(-2.6309 + 1.9513 * ln(D)) + exp(-3.5715 + 2.7203 * ln(D)) + exp(-4.82 + 2.5112 * ln(D)) + exp(-3.9112 + 2.0327 * ln(D))","published":{"expression":"exp(-2.6309 + 1.9513 * ln(D)) + exp(-3.5715 + 2.7203 * ln(D)) + exp(-4.82 + 2.5112 * ln(D)) + exp(-3.9112 + 2.0327 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus sylvestris var. mongolica","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Pure plantations, northeast China","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":85,"dbh_min_cm":6,"dbh_max_cm":38.7,"h_min_m":3.5,"h_max_m":22.3,"method":"seemingly unrelated regression (SUR) on log-transformed additive system, ln W = a + b ln D"},"evidence":[{"field":"expression","quote":"lnWa = ln(Ws + Wb + Wf) + εa; lnWt = ln(Wr + Ws + Wb + Wf) + εt","locator":"Eq. (1), additivity constraints"},{"field":"fit.n_trees","quote":"a total of 114 Korean pine trees, 90 larch trees, and 85 Mongolian pine trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":9.3},"expected":21.7506,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":19.1},"expected":129.9353,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":32.2},"expected":491.0602,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Mongolian pine (Pinus sylvestris var. mongolica) plantations, System 1 (D only) of Table 4: ln W = a* + b* ln D, natural logarithm, coefficients as printed (a*, b*, c*). No correction factor is stated in the paper, none applied. n and D/H ranges from Table 2 (sample statistics of the fitted trees). Stem includes bark; roots exclude fine roots <5 mm. No R2 recorded (adjusted R2 only). The paper defines this total as the exact sum of its component equations (additivity constraint); the expression is that sum with the Table 4 component coefficients, not a separately printed coefficient set."},{"id":"dong-2016-mongolian-pine-sys2-agb","source":"dong-2016","name":"Mongolian pine (Pinus sylvestris var. mongolica) aboveground biomass from D and H (sum of components, System 2)","output":{"quantity":"agb"},"expression":"exp(-3.7044 + 1.9074 * ln(D) + 0.9412 * ln(H)) + exp(-4.9247 + 2.8783 * ln(D) - 0.3612 * ln(H)) + exp(-3.9908 + 2.5358 * ln(D) - 0.5262 * ln(H))","published":{"expression":"exp(-3.7044 + 1.9074 * ln(D) + 0.9412 * ln(H)) + exp(-4.9247 + 2.8783 * ln(D) - 0.3612 * ln(H)) + exp(-3.9908 + 2.5358 * ln(D) - 0.5262 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus sylvestris var. mongolica","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Pure plantations, northeast China","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":85,"dbh_min_cm":6,"dbh_max_cm":38.7,"h_min_m":3.5,"h_max_m":22.3,"method":"seemingly unrelated regression (SUR) on log-transformed additive system, ln W = a + b ln D + c ln H"},"evidence":[{"field":"expression","quote":"lnWa = ln(Ws + Wb + Wf) + εa; lnWt = ln(Wr + Ws + Wb + Wf) + εt","locator":"Eq. (2), additivity constraints"},{"field":"fit.n_trees","quote":"a total of 114 Korean pine trees, 90 larch trees, and 85 Mongolian pine trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":9.3,"H":7.3},"expected":15.2751,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":19.1,"H":12.9},"expected":98.4112,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":32.2,"H":18.5},"expected":370.3021,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Mongolian pine (Pinus sylvestris var. mongolica) plantations, System 2 (D and H) of Table 4: ln W = a* + b* ln D + c* ln H, natural logarithm, coefficients as printed (a*, b*, c*). No correction factor is stated in the paper, none applied. n and D/H ranges from Table 2 (sample statistics of the fitted trees). Stem includes bark; roots exclude fine roots <5 mm. No R2 recorded (adjusted R2 only). The paper defines this total as the exact sum of its component equations (additivity constraint); the expression is that sum with the Table 4 component coefficients, not a separately printed coefficient set."},{"id":"dong-2016-mongolian-pine-sys2-branch","source":"dong-2016","name":"Mongolian pine (Pinus sylvestris var. mongolica) branch biomass from D and H (System 2, Table 4)","output":{"quantity":"branch_biomass"},"expression":"exp(-4.9247 + 2.8783 * ln(D) - 0.3612 * ln(H))","published":{"expression":"exp(-4.9247 + 2.8783 * ln(D) - 0.3612 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus sylvestris var. mongolica","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Pure plantations, northeast China","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":85,"dbh_min_cm":6,"dbh_max_cm":38.7,"h_min_m":3.5,"h_max_m":22.3,"method":"seemingly unrelated regression (SUR) on log-transformed additive system, ln W = a + b ln D + c ln H"},"evidence":[{"field":"expression","quote":"lnWb = a* + b* × lnD + c* × lnH; Table 4, Mongolian pine, System 2 (D and H): Branch | -4.9247 | 2.8783 | -0.3612","locator":"Eqs. (2) and Table 4"},{"field":"fit.n_trees","quote":"a total of 114 Korean pine trees, 90 larch trees, and 85 Mongolian pine trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":9.3,"H":7.3},"expected":2.1726,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":19.1,"H":12.9},"expected":14.0373,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":32.2,"H":18.5},"expected":55.4101,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Mongolian pine (Pinus sylvestris var. mongolica) plantations, System 2 (D and H) of Table 4: ln W = a* + b* ln D + c* ln H, natural logarithm, coefficients as printed (a*, b*, c*). No correction factor is stated in the paper, none applied. n and D/H ranges from Table 2 (sample statistics of the fitted trees). Stem includes bark; roots exclude fine roots <5 mm. No R2 recorded (adjusted R2 only)."},{"id":"dong-2016-mongolian-pine-sys2-foliage","source":"dong-2016","name":"Mongolian pine (Pinus sylvestris var. mongolica) foliage biomass from D and H (System 2, Table 4)","output":{"quantity":"foliage_biomass"},"expression":"exp(-3.9908 + 2.5358 * ln(D) - 0.5262 * ln(H))","published":{"expression":"exp(-3.9908 + 2.5358 * ln(D) - 0.5262 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus sylvestris var. mongolica","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Pure plantations, northeast China","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":85,"dbh_min_cm":6,"dbh_max_cm":38.7,"h_min_m":3.5,"h_max_m":22.3,"method":"seemingly unrelated regression (SUR) on log-transformed additive system, ln W = a + b ln D + c ln H"},"evidence":[{"field":"expression","quote":"lnWf = a* + b* × lnD + c* × lnH; Table 4, Mongolian pine, System 2 (D and H): Foliage | -3.9908 | 2.5358 | -0.5262","locator":"Eqs. (2) and Table 4"},{"field":"fit.n_trees","quote":"a total of 114 Korean pine trees, 90 larch trees, and 85 Mongolian pine trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":9.3,"H":7.3},"expected":1.8553,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":19.1,"H":12.9},"expected":8.5284,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":32.2,"H":18.5},"expected":26.5248,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Mongolian pine (Pinus sylvestris var. mongolica) plantations, System 2 (D and H) of Table 4: ln W = a* + b* ln D + c* ln H, natural logarithm, coefficients as printed (a*, b*, c*). No correction factor is stated in the paper, none applied. n and D/H ranges from Table 2 (sample statistics of the fitted trees). Stem includes bark; roots exclude fine roots <5 mm. No R2 recorded (adjusted R2 only)."},{"id":"dong-2016-mongolian-pine-sys2-root","source":"dong-2016","name":"Mongolian pine (Pinus sylvestris var. mongolica) root biomass from D and H (System 2, Table 4)","output":{"quantity":"bgb"},"expression":"exp(-2.5406 + 1.9752 * ln(D) - 0.0606 * ln(H))","published":{"expression":"exp(-2.5406 + 1.9752 * ln(D) - 0.0606 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus sylvestris var. mongolica","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Pure plantations, northeast China","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":85,"dbh_min_cm":6,"dbh_max_cm":38.7,"h_min_m":3.5,"h_max_m":22.3,"method":"seemingly unrelated regression (SUR) on log-transformed additive system, ln W = a + b ln D + c ln H"},"evidence":[{"field":"expression","quote":"lnWr = a* + b* × lnD + c* × lnH; Table 4, Mongolian pine, System 2 (D and H): Root | -2.5406 | 1.9752 | -0.0606","locator":"Eqs. (2) and Table 4"},{"field":"fit.n_trees","quote":"a total of 114 Korean pine trees, 90 larch trees, and 85 Mongolian pine trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":9.3,"H":7.3},"expected":5.7182,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":19.1,"H":12.9},"expected":22.889,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":32.2,"H":18.5},"expected":62.8287,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Mongolian pine (Pinus sylvestris var. mongolica) plantations, System 2 (D and H) of Table 4: ln W = a* + b* ln D + c* ln H, natural logarithm, coefficients as printed (a*, b*, c*). No correction factor is stated in the paper, none applied. n and D/H ranges from Table 2 (sample statistics of the fitted trees). Stem includes bark; roots exclude fine roots <5 mm. No R2 recorded (adjusted R2 only)."},{"id":"dong-2016-mongolian-pine-sys2-stem","source":"dong-2016","name":"Mongolian pine (Pinus sylvestris var. mongolica) stem biomass from D and H (System 2, Table 4)","output":{"quantity":"stem_biomass"},"expression":"exp(-3.7044 + 1.9074 * ln(D) + 0.9412 * ln(H))","published":{"expression":"exp(-3.7044 + 1.9074 * ln(D) + 0.9412 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus sylvestris var. mongolica","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Pure plantations, northeast China","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":85,"dbh_min_cm":6,"dbh_max_cm":38.7,"h_min_m":3.5,"h_max_m":22.3,"method":"seemingly unrelated regression (SUR) on log-transformed additive system, ln W = a + b ln D + c ln H"},"evidence":[{"field":"expression","quote":"lnWs = a* + b* × lnD + c* × lnH; Table 4, Mongolian pine, System 2 (D and H): Stem | -3.7044 | 1.9074 | 0.9412","locator":"Eqs. 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Stem includes bark; roots exclude fine roots <5 mm. No R2 recorded (adjusted R2 only)."},{"id":"dong-2016-mongolian-pine-sys2-total","source":"dong-2016","name":"Mongolian pine (Pinus sylvestris var. mongolica) total (above + below ground) biomass from D and H (sum of components, System 2)","output":{"quantity":"total_biomass"},"expression":"exp(-2.5406 + 1.9752 * ln(D) - 0.0606 * ln(H)) + exp(-3.7044 + 1.9074 * ln(D) + 0.9412 * ln(H)) + exp(-4.9247 + 2.8783 * ln(D) - 0.3612 * ln(H)) + exp(-3.9908 + 2.5358 * ln(D) - 0.5262 * ln(H))","published":{"expression":"exp(-2.5406 + 1.9752 * ln(D) - 0.0606 * ln(H)) + exp(-3.7044 + 1.9074 * ln(D) + 0.9412 * ln(H)) + exp(-4.9247 + 2.8783 * ln(D) - 0.3612 * ln(H)) + exp(-3.9908 + 2.5358 * ln(D) - 0.5262 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus sylvestris var. mongolica","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Pure plantations, northeast China","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":85,"dbh_min_cm":6,"dbh_max_cm":38.7,"h_min_m":3.5,"h_max_m":22.3,"method":"seemingly unrelated regression (SUR) on log-transformed additive system, ln W = a + b ln D + c ln H"},"evidence":[{"field":"expression","quote":"lnWa = ln(Ws + Wb + Wf) + εa; lnWt = ln(Wr + Ws + Wb + Wf) + εt","locator":"Eq. (2), additivity constraints"},{"field":"fit.n_trees","quote":"a total of 114 Korean pine trees, 90 larch trees, and 85 Mongolian pine trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":9.3,"H":7.3},"expected":20.9933,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":19.1,"H":12.9},"expected":121.3002,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":32.2,"H":18.5},"expected":433.1308,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Mongolian pine (Pinus sylvestris var. mongolica) plantations, System 2 (D and H) of Table 4: ln W = a* + b* ln D + c* ln H, natural logarithm, coefficients as printed (a*, b*, c*). No correction factor is stated in the paper, none applied. n and D/H ranges from Table 2 (sample statistics of the fitted trees). Stem includes bark; roots exclude fine roots <5 mm. No R2 recorded (adjusted R2 only). The paper defines this total as the exact sum of its component equations (additivity constraint); the expression is that sum with the Table 4 component coefficients, not a separately printed coefficient set."},{"id":"dong-2018-birch-ms2-agb","source":"dong-2018","name":"White birch aboveground biomass from D only (MS-2) (sum of components, Table 5)","output":{"quantity":"agb"},"expression":"exp(-2.5622 + 2.515 * ln(D)) + exp(-5.1593 + 2.8615 * ln(D)) + exp(-5.5644 + 2.479 * ln(D))","published":{"expression":"exp(-2.5622) * D^2.515 + exp(-5.1593) * D^2.8615 + exp(-5.5644) * D^2.479","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Betula platyphylla","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CN"],"place":"Eastern Daxing'an Mountains, Heilongjiang, northeast China","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":108,"dbh_min_cm":1.4,"dbh_max_cm":20.5,"h_min_m":3.1,"h_max_m":21,"method":"seemingly unrelated regression (SUR), additive system, W = exp(b0) D^b1 H^b2"},"evidence":[{"field":"expression","quote":"Wa = Ws + Wb + Wf + εa; Wt = Wr + Ws + Wb + Wf + εt","locator":"Eq. (14), additive constraints"},{"field":"fit.n_trees","quote":"138 Dahurian larch trees and 108 white birch trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":4},"expected":2.9428,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":10},"expected":30.5807,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":18},"expected":138.1407,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"White birch, MS-2: the paper defines this total as the sum of its component equations (Eq. 14 constraints), with coefficients of the component rows in Table 5; the expression is that sum, not a separately printed formula. Stem includes bark; roots exclude fine roots <5 mm."},{"id":"dong-2018-birch-ms2-branch","source":"dong-2018","name":"White birch branch biomass from D only (MS-2) (Table 5)","output":{"quantity":"branch_biomass"},"expression":"exp(-5.1593 + 2.8615 * ln(D))","published":{"expression":"exp(-5.1593) * D^2.8615","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Betula platyphylla","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CN"],"place":"Eastern Daxing'an Mountains, Heilongjiang, northeast China","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":108,"dbh_min_cm":1.4,"dbh_max_cm":20.5,"h_min_m":3.1,"h_max_m":21,"method":"seemingly unrelated regression (SUR), additive system, W = exp(b0) D^b1 H^b2"},"evidence":[{"field":"expression","quote":"Wb = e^β30 · D^β31; White birch | Branch | -5.1593 | 2.8615","locator":"Table 5 (MS-2), White birch, branch row; model form Eq. (14) structure"},{"field":"fit.n_trees","quote":"138 Dahurian larch trees and 108 white birch trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":4},"expected":0.3035,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":10},"expected":4.1768,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":18},"expected":22.4547,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"White birch, additive system MS-2 (Table 5); W = exp(b0) * D^b1 (Eqs. 16 form per Table caption). Ranges and n from Table 2. The b0 column is the exponent of e (W = e^b0 ...), as in Eq. (14). Stem includes bark. Root excludes fine roots <5 mm. No R2 recorded (adjusted R2 only)."},{"id":"dong-2018-birch-ms2-foliage","source":"dong-2018","name":"White birch foliage biomass from D only (MS-2) (Table 5)","output":{"quantity":"foliage_biomass"},"expression":"exp(-5.5644 + 2.479 * ln(D))","published":{"expression":"exp(-5.5644) * D^2.479","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Betula platyphylla","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CN"],"place":"Eastern Daxing'an Mountains, Heilongjiang, northeast China","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":108,"dbh_min_cm":1.4,"dbh_max_cm":20.5,"h_min_m":3.1,"h_max_m":21,"method":"seemingly unrelated regression (SUR), additive system, W = exp(b0) D^b1 H^b2"},"evidence":[{"field":"expression","quote":"Wf = e^β40 · D^β41; White birch | Foliage | -5.5644 | 2.479","locator":"Table 5 (MS-2), White birch, foliage row; model form Eq. (14) structure"},{"field":"fit.n_trees","quote":"138 Dahurian larch trees and 108 white birch trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":4},"expected":0.1191,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":10},"expected":1.1545,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":18},"expected":4.9572,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"White birch, additive system MS-2 (Table 5); W = exp(b0) * D^b1 (Eqs. 16 form per Table caption). Ranges and n from Table 2. The b0 column is the exponent of e (W = e^b0 ...), as in Eq. (14). Stem includes bark. Root excludes fine roots <5 mm. No R2 recorded (adjusted R2 only)."},{"id":"dong-2018-birch-ms2-root","source":"dong-2018","name":"White birch root biomass from D only (MS-2) (Table 5)","output":{"quantity":"bgb"},"expression":"exp(-3.0968 + 2.3095 * ln(D))","published":{"expression":"exp(-3.0968) * D^2.3095","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Betula platyphylla","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CN"],"place":"Eastern Daxing'an Mountains, Heilongjiang, northeast China","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":108,"dbh_min_cm":1.4,"dbh_max_cm":20.5,"h_min_m":3.1,"h_max_m":21,"method":"seemingly unrelated regression (SUR), additive system, W = exp(b0) D^b1 H^b2"},"evidence":[{"field":"expression","quote":"Wr = e^β10 · D^β11; White birch | Root | -3.0968 | 2.3095","locator":"Table 5 (MS-2), White birch, root row; model form Eq. (14) structure"},{"field":"fit.n_trees","quote":"138 Dahurian larch trees and 108 white birch trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":4},"expected":1.1105,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":10},"expected":9.2167,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":18},"expected":35.8203,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"White birch, additive system MS-2 (Table 5); W = exp(b0) * D^b1 (Eqs. 16 form per Table caption). Ranges and n from Table 2. The b0 column is the exponent of e (W = e^b0 ...), as in Eq. (14). Stem includes bark. Root excludes fine roots <5 mm. No R2 recorded (adjusted R2 only)."},{"id":"dong-2018-birch-ms2-stem","source":"dong-2018","name":"White birch stem biomass from D only (MS-2) (Table 5)","output":{"quantity":"stem_biomass"},"expression":"exp(-2.5622 + 2.515 * ln(D))","published":{"expression":"exp(-2.5622) * D^2.515","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Betula platyphylla","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CN"],"place":"Eastern Daxing'an Mountains, Heilongjiang, northeast China","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":108,"dbh_min_cm":1.4,"dbh_max_cm":20.5,"h_min_m":3.1,"h_max_m":21,"method":"seemingly unrelated regression (SUR), additive system, W = exp(b0) D^b1 H^b2"},"evidence":[{"field":"expression","quote":"Ws = e^β20 · D^β21; White birch | Stem | -2.5622 | 2.515","locator":"Table 5 (MS-2), White birch, stem row; model form Eq. (14) structure"},{"field":"fit.n_trees","quote":"138 Dahurian larch trees and 108 white birch trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":4},"expected":2.5202,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":10},"expected":25.2494,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":18},"expected":110.7289,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"White birch, additive system MS-2 (Table 5); W = exp(b0) * D^b1 (Eqs. 16 form per Table caption). Ranges and n from Table 2. The b0 column is the exponent of e (W = e^b0 ...), as in Eq. (14). Stem includes bark. Root excludes fine roots <5 mm. No R2 recorded (adjusted R2 only)."},{"id":"dong-2018-birch-ms2-total","source":"dong-2018","name":"White birch total (above + below ground) biomass from D only (MS-2) (sum of components, Table 5)","output":{"quantity":"total_biomass"},"expression":"exp(-3.0968 + 2.3095 * ln(D)) + exp(-2.5622 + 2.515 * ln(D)) + exp(-5.1593 + 2.8615 * ln(D)) + exp(-5.5644 + 2.479 * ln(D))","published":{"expression":"exp(-3.0968) * D^2.3095 + exp(-2.5622) * D^2.515 + exp(-5.1593) * D^2.8615 + exp(-5.5644) * D^2.479","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Betula platyphylla","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CN"],"place":"Eastern Daxing'an Mountains, Heilongjiang, northeast China","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":108,"dbh_min_cm":1.4,"dbh_max_cm":20.5,"h_min_m":3.1,"h_max_m":21,"method":"seemingly unrelated regression (SUR), additive system, W = exp(b0) D^b1 H^b2"},"evidence":[{"field":"expression","quote":"Wa = Ws + Wb + Wf + εa; Wt = Wr + Ws + Wb + Wf + εt","locator":"Eq. (14), additive constraints"},{"field":"fit.n_trees","quote":"138 Dahurian larch trees and 108 white birch trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":4},"expected":4.0533,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":10},"expected":39.7975,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":18},"expected":173.961,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"White birch, MS-2: the paper defines this total as the sum of its component equations (Eq. 14 constraints), with coefficients of the component rows in Table 5; the expression is that sum, not a separately printed formula. Stem includes bark; roots exclude fine roots <5 mm."},{"id":"dong-2018-birch-ms3-agb","source":"dong-2018","name":"White birch aboveground biomass from D and H (MS-3) (sum of components, Table 6)","output":{"quantity":"agb"},"expression":"exp(-3.4046 + 2.0371 * ln(D) + 0.7708 * ln(H)) + exp(-5.5895 + 3.1021 * ln(D) - 0.0867 * ln(H)) + exp(-3.9626 + 3.097 * ln(D) - 1.2009 * ln(H))","published":{"expression":"exp(-3.4046) * D^2.0371 * H^0.7708 + exp(-5.5895) * D^3.1021 * H^(-0.0867) + exp(-3.9626) * D^3.097 * H^(-1.2009)","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Betula platyphylla","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CN"],"place":"Eastern Daxing'an Mountains, Heilongjiang, northeast China","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":108,"dbh_min_cm":1.4,"dbh_max_cm":20.5,"h_min_m":3.1,"h_max_m":21,"method":"seemingly unrelated regression (SUR), additive system, W = exp(b0) D^b1 H^b2"},"evidence":[{"field":"expression","quote":"Wa = Ws + Wb + Wf + εa; Wt = Wr + Ws + Wb + Wf + εt","locator":"Eq. (14), additive constraints"},{"field":"fit.n_trees","quote":"138 Dahurian larch trees and 108 white birch trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":4,"H":5},"expected":2.3759,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":11},"expected":28.1472,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":18,"H":17},"expected":134.1865,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"White birch, MS-3: the paper defines this total as the sum of its component equations (Eq. 14 constraints), with coefficients of the component rows in Table 6; the expression is that sum, not a separately printed formula. Stem includes bark; roots exclude fine roots <5 mm."},{"id":"dong-2018-birch-ms3-branch","source":"dong-2018","name":"White birch branch biomass from D and H (MS-3) (Table 6)","output":{"quantity":"branch_biomass"},"expression":"exp(-5.5895 + 3.1021 * ln(D) - 0.0867 * ln(H))","published":{"expression":"exp(-5.5895) * D^3.1021 * H^(-0.0867)","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Betula platyphylla","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CN"],"place":"Eastern Daxing'an Mountains, Heilongjiang, northeast China","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":108,"dbh_min_cm":1.4,"dbh_max_cm":20.5,"h_min_m":3.1,"h_max_m":21,"method":"seemingly unrelated regression (SUR), additive system, W = exp(b0) D^b1 H^b2"},"evidence":[{"field":"expression","quote":"Wb = e^β30 · D^β31 · H^β32; White birch | Branch | -5.5895 | 3.1021 | -0.0867","locator":"Table 6 (MS-3), White birch, branch row; model form Eq. (14) structure"},{"field":"fit.n_trees","quote":"138 Dahurian larch trees and 108 white birch trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":4,"H":5},"expected":0.2396,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":11},"expected":3.8399,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":18,"H":17},"expected":22.8988,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"White birch, additive system MS-3 (Table 6); W = exp(b0) * D^b1 * H^b2 (Eqs. 17 form per Table caption). Ranges and n from Table 2. The b0 column is the exponent of e (W = e^b0 ...), as in Eq. (14). Stem includes bark. Root excludes fine roots <5 mm. No R2 recorded (adjusted R2 only)."},{"id":"dong-2018-birch-ms3-foliage","source":"dong-2018","name":"White birch foliage biomass from D and H (MS-3) (Table 6)","output":{"quantity":"foliage_biomass"},"expression":"exp(-3.9626 + 3.097 * ln(D) - 1.2009 * ln(H))","published":{"expression":"exp(-3.9626) * D^3.097 * H^(-1.2009)","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Betula platyphylla","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CN"],"place":"Eastern Daxing'an Mountains, Heilongjiang, northeast China","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":108,"dbh_min_cm":1.4,"dbh_max_cm":20.5,"h_min_m":3.1,"h_max_m":21,"method":"seemingly unrelated regression (SUR), additive system, W = exp(b0) D^b1 H^b2"},"evidence":[{"field":"expression","quote":"Wf = e^β40 · D^β41 · H^β42; White birch | Foliage | -3.9626 | 3.097 | -1.2009","locator":"Table 6 (MS-3), White birch, foliage row; model form Eq. (14) structure"},{"field":"fit.n_trees","quote":"138 Dahurian larch trees and 108 white birch trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":4,"H":5},"expected":0.2015,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":11},"expected":1.3349,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":18,"H":17},"expected":4.8865,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"White birch, additive system MS-3 (Table 6); W = exp(b0) * D^b1 * H^b2 (Eqs. 17 form per Table caption). Ranges and n from Table 2. The b0 column is the exponent of e (W = e^b0 ...), as in Eq. (14). Stem includes bark. Root excludes fine roots <5 mm. No R2 recorded (adjusted R2 only)."},{"id":"dong-2018-birch-ms3-root","source":"dong-2018","name":"White birch root biomass from D and H (MS-3) (Table 6)","output":{"quantity":"bgb"},"expression":"exp(-3.2954 + 1.9718 * ln(D) + 0.3931 * ln(H))","published":{"expression":"exp(-3.2954) * D^1.9718 * H^0.3931","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Betula platyphylla","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CN"],"place":"Eastern Daxing'an Mountains, Heilongjiang, northeast China","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":108,"dbh_min_cm":1.4,"dbh_max_cm":20.5,"h_min_m":3.1,"h_max_m":21,"method":"seemingly unrelated regression (SUR), additive system, W = exp(b0) D^b1 H^b2"},"evidence":[{"field":"expression","quote":"Wr = e^β10 · D^β11 · H^β12; White birch | Root | -3.2954 | 1.9718 | 0.3931","locator":"Table 6 (MS-3), White birch, root row; model form Eq. (14) structure"},{"field":"fit.n_trees","quote":"138 Dahurian larch trees and 108 white birch trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":4,"H":5},"expected":1.0733,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":11},"expected":8.9125,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":18,"H":17},"expected":33.7025,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"White birch, additive system MS-3 (Table 6); W = exp(b0) * D^b1 * H^b2 (Eqs. 17 form per Table caption). Ranges and n from Table 2. The b0 column is the exponent of e (W = e^b0 ...), as in Eq. (14). Stem includes bark. Root excludes fine roots <5 mm. No R2 recorded (adjusted R2 only)."},{"id":"dong-2018-birch-ms3-stem","source":"dong-2018","name":"White birch stem biomass from D and H (MS-3) (Table 6)","output":{"quantity":"stem_biomass"},"expression":"exp(-3.4046 + 2.0371 * ln(D) + 0.7708 * ln(H))","published":{"expression":"exp(-3.4046) * D^2.0371 * H^0.7708","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Betula platyphylla","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CN"],"place":"Eastern Daxing'an Mountains, Heilongjiang, northeast China","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":108,"dbh_min_cm":1.4,"dbh_max_cm":20.5,"h_min_m":3.1,"h_max_m":21,"method":"seemingly unrelated regression (SUR), additive system, W = exp(b0) D^b1 H^b2"},"evidence":[{"field":"expression","quote":"Ws = e^β20 · D^β21 · H^β22; White birch | Stem | -3.4046 | 2.0371 | 0.7708","locator":"Table 6 (MS-3), White birch, stem row; model form Eq. (14) structure"},{"field":"fit.n_trees","quote":"138 Dahurian larch trees and 108 white birch trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":4,"H":5},"expected":1.9347,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":11},"expected":22.9724,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":18,"H":17},"expected":106.4012,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"White birch, additive system MS-3 (Table 6); W = exp(b0) * D^b1 * H^b2 (Eqs. 17 form per Table caption). Ranges and n from Table 2. The b0 column is the exponent of e (W = e^b0 ...), as in Eq. (14). Stem includes bark. Root excludes fine roots <5 mm. No R2 recorded (adjusted R2 only)."},{"id":"dong-2018-birch-ms3-total","source":"dong-2018","name":"White birch total (above + below ground) biomass from D and H (MS-3) (sum of components, Table 6)","output":{"quantity":"total_biomass"},"expression":"exp(-3.2954 + 1.9718 * ln(D) + 0.3931 * ln(H)) + exp(-3.4046 + 2.0371 * ln(D) + 0.7708 * ln(H)) + exp(-5.5895 + 3.1021 * ln(D) - 0.0867 * ln(H)) + exp(-3.9626 + 3.097 * ln(D) - 1.2009 * ln(H))","published":{"expression":"exp(-3.2954) * D^1.9718 * H^0.3931 + exp(-3.4046) * D^2.0371 * H^0.7708 + exp(-5.5895) * D^3.1021 * H^(-0.0867) + exp(-3.9626) * D^3.097 * H^(-1.2009)","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Betula platyphylla","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CN"],"place":"Eastern Daxing'an Mountains, Heilongjiang, northeast China","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":108,"dbh_min_cm":1.4,"dbh_max_cm":20.5,"h_min_m":3.1,"h_max_m":21,"method":"seemingly unrelated regression (SUR), additive system, W = exp(b0) D^b1 H^b2"},"evidence":[{"field":"expression","quote":"Wa = Ws + Wb + Wf + εa; Wt = Wr + Ws + Wb + Wf + εt","locator":"Eq. (14), additive constraints"},{"field":"fit.n_trees","quote":"138 Dahurian larch trees and 108 white birch trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":4,"H":5},"expected":3.4492,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":11},"expected":37.0597,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":18,"H":17},"expected":167.889,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"White birch, MS-3: the paper defines this total as the sum of its component equations (Eq. 14 constraints), with coefficients of the component rows in Table 6; the expression is that sum, not a separately printed formula. Stem includes bark; roots exclude fine roots <5 mm."},{"id":"dong-2018-larch-ms1-root-dhcw","source":"dong-2018","name":"Dahurian larch root biomass from D, H and crown width, system MS-1 (Table 4)","output":{"quantity":"bgb"},"expression":"exp(-3.3149 + 2.3609 * ln(D) - 0.0254 * ln(H) + 0.4716 * ln(CD))","published":{"expression":"exp(-3.3149) * D^2.3609 * H^(-0.0254) * CW^0.4716","units":{"D":"cm","H":"m","CW":"m"},"variables":{"CW":"CD"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix gmelinii","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Eastern Daxing'an Mountains, Heilongjiang, northeast China","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":138,"dbh_min_cm":1.7,"dbh_max_cm":28.4,"h_min_m":2.4,"h_max_m":21.9,"method":"seemingly unrelated regression (SUR), additive system, W = exp(b0) D^b1 H^b2 CW^b3"},"evidence":[{"field":"expression","quote":"Wr = e^β10 · D^β11 · H^β12 · CW^β13; Dahurian larch | Root | -3.3149 | 2.3609 | -0.0254 | 0.4716","locator":"Table 4, Dahurian larch, root row; model form Eq. (14)"},{"field":"fit.n_trees","quote":"138 Dahurian larch trees and 108 white birch trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":4,"H":5,"CD":0.6},"expected":0.7234,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":11,"CD":1.2},"expected":8.5536,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":17,"CD":2.2},"expected":57.8352,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dahurian larch, MS-1 (Table 4): W = exp(b0) * D^b1 * H^b2 * CW^b3 where CW is crown width (m), mapped to canonical CD. Crown width range 0.3-2.9 m (Table 2). Stem includes bark; roots exclude fine roots <5 mm. No R2 recorded (adjusted R2 only)."},{"id":"dong-2018-larch-ms2-agb","source":"dong-2018","name":"Dahurian larch aboveground biomass from D only (MS-2) (sum of components, Table 5)","output":{"quantity":"agb"},"expression":"exp(-2.6941 + 2.5249 * ln(D)) + exp(-3.4568 + 2.0135 * ln(D)) + exp(-3.2145 + 1.5199 * ln(D))","published":{"expression":"exp(-2.6941) * D^2.5249 + exp(-3.4568) * D^2.0135 + exp(-3.2145) * D^1.5199","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix gmelinii","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Eastern Daxing'an Mountains, Heilongjiang, northeast China","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":138,"dbh_min_cm":1.7,"dbh_max_cm":28.4,"h_min_m":2.4,"h_max_m":21.9,"method":"seemingly unrelated regression (SUR), additive system, W = exp(b0) D^b1 H^b2"},"evidence":[{"field":"expression","quote":"Wa = Ws + Wb + Wf + εa; Wt = Wr + Ws + Wb + Wf + εt","locator":"Eq. (14), additive constraints"},{"field":"fit.n_trees","quote":"138 Dahurian larch trees and 108 white birch trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":4},"expected":3.0837,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":10},"expected":27.2221,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":18},"expected":113.7352,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dahurian larch, MS-2: the paper defines this total as the sum of its component equations (Eq. 14 constraints), with coefficients of the component rows in Table 5; the expression is that sum, not a separately printed formula. Stem includes bark; roots exclude fine roots <5 mm."},{"id":"dong-2018-larch-ms2-branch","source":"dong-2018","name":"Dahurian larch branch biomass from D only (MS-2) (Table 5)","output":{"quantity":"branch_biomass"},"expression":"exp(-3.4568 + 2.0135 * ln(D))","published":{"expression":"exp(-3.4568) * D^2.0135","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix gmelinii","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Eastern Daxing'an Mountains, Heilongjiang, northeast China","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":138,"dbh_min_cm":1.7,"dbh_max_cm":28.4,"h_min_m":2.4,"h_max_m":21.9,"method":"seemingly unrelated regression (SUR), additive system, W = exp(b0) D^b1 H^b2"},"evidence":[{"field":"expression","quote":"Wb = e^β30 · D^β31; Dahurian larch | Branch | -3.4568 | 2.0135","locator":"Table 5 (MS-2), Dahurian larch, branch row; model form Eq. (14) structure"},{"field":"fit.n_trees","quote":"138 Dahurian larch trees and 108 white birch trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":4},"expected":0.514,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":10},"expected":3.2526,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":18},"expected":10.6224,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dahurian larch, additive system MS-2 (Table 5); W = exp(b0) * D^b1 (Eqs. 16 form per Table caption). Ranges and n from Table 2. The b0 column is the exponent of e (W = e^b0 ...), as in Eq. (14). Stem includes bark. Root excludes fine roots <5 mm. No R2 recorded (adjusted R2 only)."},{"id":"dong-2018-larch-ms2-foliage","source":"dong-2018","name":"Dahurian larch foliage biomass from D only (MS-2) (Table 5)","output":{"quantity":"foliage_biomass"},"expression":"exp(-3.2145 + 1.5199 * ln(D))","published":{"expression":"exp(-3.2145) * D^1.5199","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix gmelinii","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Eastern Daxing'an Mountains, Heilongjiang, northeast China","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":138,"dbh_min_cm":1.7,"dbh_max_cm":28.4,"h_min_m":2.4,"h_max_m":21.9,"method":"seemingly unrelated regression (SUR), additive system, W = exp(b0) D^b1 H^b2"},"evidence":[{"field":"expression","quote":"Wf = e^β40 · D^β41; Dahurian larch | Foliage | -3.2145 | 1.5199","locator":"Table 5 (MS-2), Dahurian larch, foliage row; model form Eq. (14) structure"},{"field":"fit.n_trees","quote":"138 Dahurian larch trees and 108 white birch trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":4},"expected":0.3304,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":10},"expected":1.33,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":18},"expected":3.2497,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dahurian larch, additive system MS-2 (Table 5); W = exp(b0) * D^b1 (Eqs. 16 form per Table caption). Ranges and n from Table 2. The b0 column is the exponent of e (W = e^b0 ...), as in Eq. (14). Stem includes bark. Root excludes fine roots <5 mm. No R2 recorded (adjusted R2 only)."},{"id":"dong-2018-larch-ms2-root","source":"dong-2018","name":"Dahurian larch root biomass from D only (MS-2) (Table 5)","output":{"quantity":"bgb"},"expression":"exp(-3.8165 + 2.5956 * ln(D))","published":{"expression":"exp(-3.8165) * D^2.5956","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix gmelinii","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Eastern Daxing'an Mountains, Heilongjiang, northeast China","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":138,"dbh_min_cm":1.7,"dbh_max_cm":28.4,"h_min_m":2.4,"h_max_m":21.9,"method":"seemingly unrelated regression (SUR), additive system, W = exp(b0) D^b1 H^b2"},"evidence":[{"field":"expression","quote":"Wr = e^β10 · D^β11; Dahurian larch | Root | -3.8165 | 2.5956","locator":"Table 5 (MS-2), Dahurian larch, root row; model form Eq. (14) structure"},{"field":"fit.n_trees","quote":"138 Dahurian larch trees and 108 white birch trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":4},"expected":0.8039,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":10},"expected":8.6719,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":18},"expected":39.875,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dahurian larch, additive system MS-2 (Table 5); W = exp(b0) * D^b1 (Eqs. 16 form per Table caption). Ranges and n from Table 2. The b0 column is the exponent of e (W = e^b0 ...), as in Eq. (14). Stem includes bark. Root excludes fine roots <5 mm. No R2 recorded (adjusted R2 only)."},{"id":"dong-2018-larch-ms2-stem","source":"dong-2018","name":"Dahurian larch stem biomass from D only (MS-2) (Table 5)","output":{"quantity":"stem_biomass"},"expression":"exp(-2.6941 + 2.5249 * ln(D))","published":{"expression":"exp(-2.6941) * D^2.5249","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix gmelinii","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Eastern Daxing'an Mountains, Heilongjiang, northeast China","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":138,"dbh_min_cm":1.7,"dbh_max_cm":28.4,"h_min_m":2.4,"h_max_m":21.9,"method":"seemingly unrelated regression (SUR), additive system, W = exp(b0) D^b1 H^b2"},"evidence":[{"field":"expression","quote":"Ws = e^β20 · D^β21; Dahurian larch | Stem | -2.6941 | 2.5249","locator":"Table 5 (MS-2), Dahurian larch, stem row; model form Eq. (14) structure"},{"field":"fit.n_trees","quote":"138 Dahurian larch trees and 108 white birch trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":4},"expected":2.2393,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":10},"expected":22.6395,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":18},"expected":99.863,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dahurian larch, additive system MS-2 (Table 5); W = exp(b0) * D^b1 (Eqs. 16 form per Table caption). Ranges and n from Table 2. The b0 column is the exponent of e (W = e^b0 ...), as in Eq. (14). Stem includes bark. Root excludes fine roots <5 mm. No R2 recorded (adjusted R2 only)."},{"id":"dong-2018-larch-ms2-total","source":"dong-2018","name":"Dahurian larch total (above + below ground) biomass from D only (MS-2) (sum of components, Table 5)","output":{"quantity":"total_biomass"},"expression":"exp(-3.8165 + 2.5956 * ln(D)) + exp(-2.6941 + 2.5249 * ln(D)) + exp(-3.4568 + 2.0135 * ln(D)) + exp(-3.2145 + 1.5199 * ln(D))","published":{"expression":"exp(-3.8165) * D^2.5956 + exp(-2.6941) * D^2.5249 + exp(-3.4568) * D^2.0135 + exp(-3.2145) * D^1.5199","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix gmelinii","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Eastern Daxing'an Mountains, Heilongjiang, northeast China","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":138,"dbh_min_cm":1.7,"dbh_max_cm":28.4,"h_min_m":2.4,"h_max_m":21.9,"method":"seemingly unrelated regression (SUR), additive system, W = exp(b0) D^b1 H^b2"},"evidence":[{"field":"expression","quote":"Wa = Ws + Wb + Wf + εa; Wt = Wr + Ws + Wb + Wf + εt","locator":"Eq. (14), additive constraints"},{"field":"fit.n_trees","quote":"138 Dahurian larch trees and 108 white birch trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":4},"expected":3.8876,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":10},"expected":35.8941,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":18},"expected":153.6101,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dahurian larch, MS-2: the paper defines this total as the sum of its component equations (Eq. 14 constraints), with coefficients of the component rows in Table 5; the expression is that sum, not a separately printed formula. Stem includes bark; roots exclude fine roots <5 mm."},{"id":"dong-2018-larch-ms3-agb","source":"dong-2018","name":"Dahurian larch aboveground biomass from D and H (MS-3) (sum of components, Table 6)","output":{"quantity":"agb"},"expression":"exp(-3.7411 + 1.8314 * ln(D) + 1.0978 * ln(H)) + exp(-2.1509 + 2.9966 * ln(D) - 1.5016 * ln(H)) + exp(-2.5753 + 2.4388 * ln(D) - 1.1785 * ln(H))","published":{"expression":"exp(-3.7411) * D^1.8314 * H^1.0978 + exp(-2.1509) * D^2.9966 * H^(-1.5016) + exp(-2.5753) * D^2.4388 * H^(-1.1785)","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix gmelinii","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Eastern Daxing'an Mountains, Heilongjiang, northeast China","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":138,"dbh_min_cm":1.7,"dbh_max_cm":28.4,"h_min_m":2.4,"h_max_m":21.9,"method":"seemingly unrelated regression (SUR), additive system, W = exp(b0) D^b1 H^b2"},"evidence":[{"field":"expression","quote":"Wa = Ws + Wb + Wf + εa; Wt = Wr + Ws + Wb + Wf + εt","locator":"Eq. (14), additive constraints"},{"field":"fit.n_trees","quote":"138 Dahurian larch trees and 108 white birch trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":4,"H":5},"expected":2.7559,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":11},"expected":26.7742,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":18,"H":17},"expected":118.5698,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dahurian larch, MS-3: the paper defines this total as the sum of its component equations (Eq. 14 constraints), with coefficients of the component rows in Table 6; the expression is that sum, not a separately printed formula. Stem includes bark; roots exclude fine roots <5 mm."},{"id":"dong-2018-larch-ms3-branch","source":"dong-2018","name":"Dahurian larch branch biomass from D and H (MS-3) (Table 6)","output":{"quantity":"branch_biomass"},"expression":"exp(-2.1509 + 2.9966 * ln(D) - 1.5016 * ln(H))","published":{"expression":"exp(-2.1509) * D^2.9966 * H^(-1.5016)","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix gmelinii","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Eastern Daxing'an Mountains, Heilongjiang, northeast China","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":138,"dbh_min_cm":1.7,"dbh_max_cm":28.4,"h_min_m":2.4,"h_max_m":21.9,"method":"seemingly unrelated regression (SUR), additive system, W = exp(b0) D^b1 H^b2"},"evidence":[{"field":"expression","quote":"Wb = e^β30 · D^β31 · H^β32; Dahurian larch | Branch | -2.1509 | 2.9966 | -1.5016","locator":"Table 6 (MS-3), Dahurian larch, branch row; model form Eq. (14) structure"},{"field":"fit.n_trees","quote":"138 Dahurian larch trees and 108 white birch trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":4,"H":5},"expected":0.6614,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":11},"expected":3.153,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":18,"H":17},"expected":9.5452,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dahurian larch, additive system MS-3 (Table 6); W = exp(b0) * D^b1 * H^b2 (Eqs. 17 form per Table caption). Ranges and n from Table 2. The b0 column is the exponent of e (W = e^b0 ...), as in Eq. (14). Stem includes bark. Root excludes fine roots <5 mm. No R2 recorded (adjusted R2 only)."},{"id":"dong-2018-larch-ms3-foliage","source":"dong-2018","name":"Dahurian larch foliage biomass from D and H (MS-3) (Table 6)","output":{"quantity":"foliage_biomass"},"expression":"exp(-2.5753 + 2.4388 * ln(D) - 1.1785 * ln(H))","published":{"expression":"exp(-2.5753) * D^2.4388 * H^(-1.1785)","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix gmelinii","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Eastern Daxing'an Mountains, Heilongjiang, northeast China","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":138,"dbh_min_cm":1.7,"dbh_max_cm":28.4,"h_min_m":2.4,"h_max_m":21.9,"method":"seemingly unrelated regression (SUR), additive system, W = exp(b0) D^b1 H^b2"},"evidence":[{"field":"expression","quote":"Wf = e^β40 · D^β41 · H^β42; Dahurian larch | Foliage | -2.5753 | 2.4388 | -1.1785","locator":"Table 6 (MS-3), Dahurian larch, foliage row; model form Eq. (14) structure"},{"field":"fit.n_trees","quote":"138 Dahurian larch trees and 108 white birch trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":4,"H":5},"expected":0.3358,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":11},"expected":1.239,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":18,"H":17},"expected":3.1105,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dahurian larch, additive system MS-3 (Table 6); W = exp(b0) * D^b1 * H^b2 (Eqs. 17 form per Table caption). Ranges and n from Table 2. The b0 column is the exponent of e (W = e^b0 ...), as in Eq. (14). Stem includes bark. Root excludes fine roots <5 mm. No R2 recorded (adjusted R2 only)."},{"id":"dong-2018-larch-ms3-root","source":"dong-2018","name":"Dahurian larch root biomass from D and H (MS-3) (Table 6)","output":{"quantity":"bgb"},"expression":"exp(-3.6977 + 2.8129 * ln(D) - 0.2671 * ln(H))","published":{"expression":"exp(-3.6977) * D^2.8129 * H^(-0.2671)","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix gmelinii","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Eastern Daxing'an Mountains, Heilongjiang, northeast China","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":138,"dbh_min_cm":1.7,"dbh_max_cm":28.4,"h_min_m":2.4,"h_max_m":21.9,"method":"seemingly unrelated regression (SUR), additive system, W = exp(b0) D^b1 H^b2"},"evidence":[{"field":"expression","quote":"Wr = e^β10 · D^β11 · H^β12; Dahurian larch | Root | -3.6977 | 2.8129 | -0.2671","locator":"Table 6 (MS-3), Dahurian larch, root row; model form Eq. (14) structure"},{"field":"fit.n_trees","quote":"138 Dahurian larch trees and 108 white birch trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":4,"H":5},"expected":0.7961,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":11},"expected":8.4889,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":18,"H":17},"expected":39.4832,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dahurian larch, additive system MS-3 (Table 6); W = exp(b0) * D^b1 * H^b2 (Eqs. 17 form per Table caption). Ranges and n from Table 2. The b0 column is the exponent of e (W = e^b0 ...), as in Eq. (14). Stem includes bark. Root excludes fine roots <5 mm. No R2 recorded (adjusted R2 only)."},{"id":"dong-2018-larch-ms3-stem","source":"dong-2018","name":"Dahurian larch stem biomass from D and H (MS-3) (Table 6)","output":{"quantity":"stem_biomass"},"expression":"exp(-3.7411 + 1.8314 * ln(D) + 1.0978 * ln(H))","published":{"expression":"exp(-3.7411) * D^1.8314 * H^1.0978","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix gmelinii","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Eastern Daxing'an Mountains, Heilongjiang, northeast China","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":138,"dbh_min_cm":1.7,"dbh_max_cm":28.4,"h_min_m":2.4,"h_max_m":21.9,"method":"seemingly unrelated regression (SUR), additive system, W = exp(b0) D^b1 H^b2"},"evidence":[{"field":"expression","quote":"Ws = e^β20 · D^β21 · H^β22; Dahurian larch | Stem | -3.7411 | 1.8314 | 1.0978","locator":"Table 6 (MS-3), Dahurian larch, stem row; model form Eq. (14) structure"},{"field":"fit.n_trees","quote":"138 Dahurian larch trees and 108 white birch trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":4,"H":5},"expected":1.7587,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":11},"expected":22.3822,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":18,"H":17},"expected":105.9141,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dahurian larch, additive system MS-3 (Table 6); W = exp(b0) * D^b1 * H^b2 (Eqs. 17 form per Table caption). Ranges and n from Table 2. The b0 column is the exponent of e (W = e^b0 ...), as in Eq. (14). Stem includes bark. Root excludes fine roots <5 mm. No R2 recorded (adjusted R2 only)."},{"id":"dong-2018-larch-ms3-total","source":"dong-2018","name":"Dahurian larch total (above + below ground) biomass from D and H (MS-3) (sum of components, Table 6)","output":{"quantity":"total_biomass"},"expression":"exp(-3.6977 + 2.8129 * ln(D) - 0.2671 * ln(H)) + exp(-3.7411 + 1.8314 * ln(D) + 1.0978 * ln(H)) + exp(-2.1509 + 2.9966 * ln(D) - 1.5016 * ln(H)) + exp(-2.5753 + 2.4388 * ln(D) - 1.1785 * ln(H))","published":{"expression":"exp(-3.6977) * D^2.8129 * H^(-0.2671) + exp(-3.7411) * D^1.8314 * H^1.0978 + exp(-2.1509) * D^2.9966 * H^(-1.5016) + exp(-2.5753) * D^2.4388 * H^(-1.1785)","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix gmelinii","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Eastern Daxing'an Mountains, Heilongjiang, northeast China","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":138,"dbh_min_cm":1.7,"dbh_max_cm":28.4,"h_min_m":2.4,"h_max_m":21.9,"method":"seemingly unrelated regression (SUR), additive system, W = exp(b0) D^b1 H^b2"},"evidence":[{"field":"expression","quote":"Wa = Ws + Wb + Wf + εa; Wt = Wr + Ws + Wb + Wf + εt","locator":"Eq. (14), additive constraints"},{"field":"fit.n_trees","quote":"138 Dahurian larch trees and 108 white birch trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":4,"H":5},"expected":3.552,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":11},"expected":35.2631,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":18,"H":17},"expected":158.053,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dahurian larch, MS-3: the paper defines this total as the sum of its component equations (Eq. 14 constraints), with coefficients of the component rows in Table 6; the expression is that sum, not a separately printed formula. Stem includes bark; roots exclude fine roots <5 mm."},{"id":"dong-2018-larch-ms4-root-dhcw","source":"dong-2018","name":"Dahurian larch root biomass from D, H and crown width, system MS-4 (Table 7)","output":{"quantity":"bgb"},"expression":"exp(-3.3151 + 2.4283 * ln(D) - 0.0932 * ln(H) + 0.4675 * ln(CD))","published":{"expression":"exp(-3.3151) * D^2.4283 * H^(-0.0932) * CW^0.4675","units":{"D":"cm","H":"m","CW":"m"},"variables":{"CW":"CD"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix gmelinii","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Eastern Daxing'an Mountains, Heilongjiang, northeast China","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":138,"dbh_min_cm":1.7,"dbh_max_cm":28.4,"h_min_m":2.4,"h_max_m":21.9,"method":"seemingly unrelated regression (SUR), additive system, W = exp(b0) D^b1 H^b2 CW^b3"},"evidence":[{"field":"expression","quote":"Wr = e^β10 · D^β11 · H^β12 · CW^β13; Dahurian larch | Root | -3.3151 | 2.4283 | -0.0932 | 0.4675","locator":"Table 7, Dahurian larch, root row; model form Eq. (18)"},{"field":"fit.n_trees","quote":"138 Dahurian larch trees and 108 white birch trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":4,"H":5,"CD":0.6},"expected":0.7135,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":11,"CD":1.2},"expected":8.4826,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":17,"CD":2.2},"expected":58.2058,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dahurian larch, MS-4 (Table 7): W = exp(b0) * D^b1 * H^b2 * CW^b3 where CW is crown width (m), mapped to canonical CD. Crown width range 0.3-2.9 m (Table 2). Stem includes bark; roots exclude fine roots <5 mm. No R2 recorded (adjusted R2 only)."},{"id":"dong-2018-larch-ms4-stem-dhcw","source":"dong-2018","name":"Dahurian larch stem biomass from D, H and crown width, system MS-4 (Table 7)","output":{"quantity":"stem_biomass"},"expression":"exp(-3.8245 + 1.7097 * ln(D) + 1.2389 * ln(H) + 0.0467 * ln(CD))","published":{"expression":"exp(-3.8245) * D^1.7097 * H^1.2389 * CW^0.0467","units":{"D":"cm","H":"m","CW":"m"},"variables":{"CW":"CD"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix gmelinii","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Eastern Daxing'an Mountains, Heilongjiang, northeast China","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":138,"dbh_min_cm":1.7,"dbh_max_cm":28.4,"h_min_m":2.4,"h_max_m":21.9,"method":"seemingly unrelated regression (SUR), additive system, W = exp(b0) D^b1 H^b2 CW^b3"},"evidence":[{"field":"expression","quote":"Ws = e^β20 · D^β21 · H^β22 · CW^β23; Dahurian larch | Stem | -3.8245 | 1.7097 | 1.2389 | 0.0467","locator":"Table 7, Dahurian larch, stem row; model form Eq. (18)"},{"field":"fit.n_trees","quote":"138 Dahurian larch trees and 108 white birch trees were destructively sampled","locator":"Section 2.2"}],"check":[{"inputs":{"D":4,"H":5,"CD":0.6},"expected":1.6749,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":11,"CD":1.2},"expected":22.01,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":17,"CD":2.2},"expected":127.0007,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dahurian larch, MS-4 (Table 7): W = exp(b0) * D^b1 * H^b2 * CW^b3 where CW is crown width (m), mapped to canonical CD. Crown width range 0.3-2.9 m (Table 2). Stem includes bark; roots exclude fine roots <5 mm. No R2 recorded (adjusted R2 only)."},{"id":"dong-2020-ams2-agb-d-h","source":"dong-2020","name":"Larch aboveground biomass from DBH and height, AMS2 (stem + branch + foliage)","output":{"quantity":"agb"},"expression":"(exp(-4.4649) * D^1.698 * H^1.4611) + (exp(-2.0674) * D^2.7545 * H^-1.2799) + (exp(-2.1882) * D^1.9121 * H^-0.733)","published":{"expression":"(exp(-4.4649) * DBH^1.698 * H^1.4611) + (exp(-2.0674) * DBH^2.7545 * H^-1.2799) + (exp(-2.1882) * DBH^1.9121 * H^-0.733)","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix olgensis","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Heilongjiang Province, Northeast China (40 plots, 10 sites)","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":229,"dbh_min_cm":2,"dbh_max_cm":35.7,"h_min_m":3.8,"h_max_m":27,"r2":0.9764,"method":"weighted NSUR (AMS2); aboveground = stem + branch + foliage"},"evidence":[{"field":"fit.n_trees","quote":"the dataset consisted of measurements on 229 larch trees using destructive biomass sampling","locator":"Section 2.1"},{"field":"fit.dbh_min_cm","quote":"DBH (cm) 229 2.0 35.7 17.9 6.9","locator":"Table 1"},{"field":"fit.h_min_m","quote":"H (m) 229 3.8 27.0 16.8 5.4","locator":"Table 1"},{"field":"expression","quote":"the aboveground biomass was also estimated by summing the estimated stem, branch, and foliage biomass","locator":"Section 3.2"},{"field":"expression","quote":"Stem −4.4649 0.0628 1.6980 0.0461 1.4611 0.0579","locator":"Table 3, AMS2, DBH and H"},{"field":"expression","quote":"Branch −2.0674 0.2072 2.7545 0.1547 −1.2799 0.1954","locator":"Table 3, AMS2, DBH and H"},{"field":"expression","quote":"Foliage −2.1882 0.1858 1.9121 0.1323 −0.7330 0.1613","locator":"Table 3, AMS2, DBH and H"},{"field":"fit.r2","quote":"R2 0.9738 0.7172 0.7202 0.9764 (AMS2 row, Stem Branch Foliage Aboveground)","locator":"Table 5, AMS2"}],"check":[{"inputs":{"D":10,"H":9},"expected":20.376,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":25,"H":20},"expected":241.81,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Aboveground biomass is the sum of the three AMS2 component equations as the paper describes (Section 3.2). Additive AMS2 system (aggregated, no constraint) fitted by weighted nonlinear seemingly unrelated regression, the system the authors recommend over the base model when no subsample is available for random effects. Biomass models are exp(b0) * DBH^b1 [* H^b2] with no back-transform factor (nonlinear fit). The paper also gives base model, mixed-effects, AMS1, DMS1 and DMS2 parameters (Tables 2-4), not added here."},{"id":"dong-2020-ams2-agb-d","source":"dong-2020","name":"Larch aboveground biomass from DBH, AMS2 (stem + branch + foliage)","output":{"quantity":"agb"},"expression":"(exp(-3.5897) * D^2.8216) + (exp(-3.1333) * D^1.8538) + (exp(-2.757) * D^1.3856)","published":{"expression":"(exp(-3.5897) * DBH^2.8216) + (exp(-3.1333) * DBH^1.8538) + (exp(-2.757) * DBH^1.3856)","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix olgensis","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Heilongjiang Province, Northeast China (40 plots, 10 sites)","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":229,"dbh_min_cm":2,"dbh_max_cm":35.7,"r2":0.9432,"method":"weighted NSUR (AMS2); aboveground = stem + branch + foliage"},"evidence":[{"field":"fit.n_trees","quote":"the dataset consisted of measurements on 229 larch trees using destructive biomass sampling","locator":"Section 2.1"},{"field":"fit.dbh_min_cm","quote":"DBH (cm) 229 2.0 35.7 17.9 6.9","locator":"Table 1"},{"field":"expression","quote":"the aboveground biomass was also estimated by summing the estimated stem, branch, and foliage biomass","locator":"Section 3.2"},{"field":"expression","quote":"Stem −3.5897 0.1057 2.8216 0.0359","locator":"Table 3, AMS2, DBH"},{"field":"expression","quote":"Branch −3.1333 0.1587 1.8538 0.0555","locator":"Table 3, AMS2, DBH"},{"field":"expression","quote":"Foliage −2.757 0.1589 1.3856 0.0533","locator":"Table 3, AMS2, DBH"},{"field":"fit.r2","quote":"R2 0.9296 0.6627 0.6996 0.9432 (AMS2 row, Stem Branch Foliage Aboveground)","locator":"Table 5, AMS2"}],"check":[{"inputs":{"D":10},"expected":22.961,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":25},"expected":265.41,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Aboveground biomass is the sum of the three AMS2 component equations as the paper describes (Section 3.2). Additive AMS2 system (aggregated, no constraint) fitted by weighted nonlinear seemingly unrelated regression, the system the authors recommend over the base model when no subsample is available for random effects. Biomass models are exp(b0) * DBH^b1 [* H^b2] with no back-transform factor (nonlinear fit). The paper also gives base model, mixed-effects, AMS1, DMS1 and DMS2 parameters (Tables 2-4), not added here."},{"id":"dong-2020-ams2-branch-d-h","source":"dong-2020","name":"Larch branch biomass from DBH and height, AMS2","output":{"quantity":"branch_biomass"},"expression":"exp(-2.0674) * D^2.7545 * H^-1.2799","published":{"expression":"exp(-2.0674) * DBH^2.7545 * H^-1.2799","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix olgensis","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Heilongjiang Province, Northeast China (40 plots, 10 sites)","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":229,"dbh_min_cm":2,"dbh_max_cm":35.7,"h_min_m":3.8,"h_max_m":27,"r2":0.7172,"method":"weighted NSUR (AMS2)"},"evidence":[{"field":"fit.n_trees","quote":"the dataset consisted of measurements on 229 larch trees using destructive biomass sampling","locator":"Section 2.1"},{"field":"fit.dbh_min_cm","quote":"DBH (cm) 229 2.0 35.7 17.9 6.9","locator":"Table 1"},{"field":"fit.h_min_m","quote":"H (m) 229 3.8 27.0 16.8 5.4","locator":"Table 1"},{"field":"expression","quote":"Branch −2.0674 0.2072 2.7545 0.1547 −1.2799 0.1954","locator":"Table 3, AMS2, DBH and H"},{"field":"fit.r2","quote":"R2 0.7172 (AMS2, DBH and H, branch column)","locator":"Table 5, AMS2"}],"check":[{"inputs":{"D":10,"H":9},"expected":4.3182,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":25,"H":20},"expected":19.39,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Component equation of the AMS2 system. Additive AMS2 system (aggregated, no constraint) fitted by weighted nonlinear seemingly unrelated regression, the system the authors recommend over the base model when no subsample is available for random effects. Biomass models are exp(b0) * DBH^b1 [* H^b2] with no back-transform factor (nonlinear fit). The paper also gives base model, mixed-effects, AMS1, DMS1 and DMS2 parameters (Tables 2-4), not added here."},{"id":"dong-2020-ams2-foliage-d-h","source":"dong-2020","name":"Larch foliage biomass from DBH and height, AMS2","output":{"quantity":"foliage_biomass"},"expression":"exp(-2.1882) * D^1.9121 * H^-0.733","published":{"expression":"exp(-2.1882) * DBH^1.9121 * H^-0.733","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix olgensis","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Heilongjiang Province, Northeast China (40 plots, 10 sites)","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":229,"dbh_min_cm":2,"dbh_max_cm":35.7,"h_min_m":3.8,"h_max_m":27,"r2":0.7202,"method":"weighted NSUR (AMS2)"},"evidence":[{"field":"fit.n_trees","quote":"the dataset consisted of measurements on 229 larch trees using destructive biomass sampling","locator":"Section 2.1"},{"field":"fit.dbh_min_cm","quote":"DBH (cm) 229 2.0 35.7 17.9 6.9","locator":"Table 1"},{"field":"fit.h_min_m","quote":"H (m) 229 3.8 27.0 16.8 5.4","locator":"Table 1"},{"field":"expression","quote":"Foliage −2.1882 0.1858 1.9121 0.1323 −0.7330 0.1613","locator":"Table 3, AMS2, DBH and H"},{"field":"fit.r2","quote":"R2 0.7202 (AMS2, DBH and H, foliage column)","locator":"Table 5, AMS2"}],"check":[{"inputs":{"D":10,"H":9},"expected":1.8294,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":25,"H":20},"expected":5.8752,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Component equation of the AMS2 system. Additive AMS2 system (aggregated, no constraint) fitted by weighted nonlinear seemingly unrelated regression, the system the authors recommend over the base model when no subsample is available for random effects. Biomass models are exp(b0) * DBH^b1 [* H^b2] with no back-transform factor (nonlinear fit). The paper also gives base model, mixed-effects, AMS1, DMS1 and DMS2 parameters (Tables 2-4), not added here."},{"id":"dong-2020-ams2-stem-d-h","source":"dong-2020","name":"Larch stem biomass from DBH and height, AMS2","output":{"quantity":"stem_biomass"},"expression":"exp(-4.4649) * D^1.698 * H^1.4611","published":{"expression":"exp(-4.4649) * DBH^1.698 * H^1.4611","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix olgensis","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Heilongjiang Province, Northeast China (40 plots, 10 sites)","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":229,"dbh_min_cm":2,"dbh_max_cm":35.7,"h_min_m":3.8,"h_max_m":27,"r2":0.9738,"method":"weighted NSUR (AMS2)"},"evidence":[{"field":"fit.n_trees","quote":"the dataset consisted of measurements on 229 larch trees using destructive biomass sampling","locator":"Section 2.1"},{"field":"fit.dbh_min_cm","quote":"DBH (cm) 229 2.0 35.7 17.9 6.9","locator":"Table 1"},{"field":"fit.h_min_m","quote":"H (m) 229 3.8 27.0 16.8 5.4","locator":"Table 1"},{"field":"expression","quote":"Stem −4.4649 0.0628 1.6980 0.0461 1.4611 0.0579","locator":"Table 3, AMS2, DBH and H"},{"field":"fit.r2","quote":"R2 0.9738 (AMS2, DBH and H, stem column)","locator":"Table 5, AMS2"}],"check":[{"inputs":{"D":10,"H":9},"expected":14.229,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":25,"H":20},"expected":216.55,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Component equation of the AMS2 system. Additive AMS2 system (aggregated, no constraint) fitted by weighted nonlinear seemingly unrelated regression, the system the authors recommend over the base model when no subsample is available for random effects. Biomass models are exp(b0) * DBH^b1 [* H^b2] with no back-transform factor (nonlinear fit). The paper also gives base model, mixed-effects, AMS1, DMS1 and DMS2 parameters (Tables 2-4), not added here."},{"id":"dorisca-2011-power-d-h","source":"dorisca-2011","name":"Cameroon semi-deciduous forest total wood volume, Eq. (4), power product in DBH and height","output":{"quantity":"total_volume"},"expression":"(1302.5 + 63.6 * D^2.5 * (H * 100)^0.16) / 1e6","published":{"expression":"(1302.5 + 63.6 * DBH^2.5 * Hcm^0.16) / 1000","units":{"DBH":"cm","Hcm":"cm"},"variables":{"DBH":"D","Hcm":"H"},"output_unit":"dm3"},"taxon":{"level":"mixed","name":"23 timber species of semi-deciduous forest (mixed)","group":"broadleaf"},"region":{"scope":"regional","countries":["CM"],"place":"Two forest management units (UFA 10-026 and 10-051), south-east Cameroon, about 1,500 mm rain per year","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":55,"dbh_min_cm":10,"dbh_max_cm":120,"r2":0.94,"method":"gls/gnls (nlme in R), variance modelled as a power of DBH; R2 is the generalized R2 (model efficiency)"},"evidence":[{"field":"expression","quote":"V̂ = 1 302,5 + 63,6 Dbh2,5 H0,16","locator":"Équation (4), Résultats / Tableau II, pp. 92-95"},{"field":"fit.n_trees","quote":"55 arbres de 10 à 120 cm de diamètre, appartenant à 23 espèces","locator":"Résumé, p. 88"},{"field":"fit.dbh_min_cm","quote":"La plage de validité de ces équations est de 10 à 120 cm.","locator":"Comparaison des cinq modèles, p. 94"},{"field":"fit.r2","quote":"R² généralisé 0,94","locator":"Tableau II, p. 95"},{"field":"units","quote":"Vi désigne le volume total de bois jusqu'à un diamètre découpe de 1 cm (en cm3), Dbhi désigne le diamètre à hauteur de poitrine (en cm) et Hi la hauteur (en cm)","locator":"Méthodes de calcul, p. 91"}],"check":[{"inputs":{"D":20,"H":20},"expected":0.38518,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":50,"H":30},"expected":4.0491,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":100,"H":40},"expected":23.978,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Total wood volume of the tree (stem and branches) down to a 1 cm diameter cut-off, not biomass. The paper fits V in cm3 with DBH in cm and, per its Methods, H in cm; the unit list has no cm3, so the published form is divided by 1000 and given in dm3, and the canonical form is divided by 1e6 to give m3 (and H in m is multiplied by 100). The paper says biomass follows from multiplying volume by specific density plus a small foliage correction, but gives no equation, so no biomass equation is stored. Sample 55 trees, DBH over 10 cm, more than 17 above 45 cm. R2 is the generalized R2 of Mayer and Butler (1993)."},{"id":"dorisca-2011-power-d","source":"dorisca-2011","name":"Cameroon semi-deciduous forest total wood volume, Eq. (3), power in DBH only","output":{"quantity":"total_volume"},"expression":"157.9 * D^2.55 / 1e6","published":{"expression":"157.9 * DBH^2.55 / 1000","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"dm3"},"taxon":{"level":"mixed","name":"23 timber species of semi-deciduous forest (mixed)","group":"broadleaf"},"region":{"scope":"regional","countries":["CM"],"place":"Two forest management units (UFA 10-026 and 10-051), south-east Cameroon, about 1,500 mm rain per year","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":55,"dbh_min_cm":10,"dbh_max_cm":120,"r2":0.93,"method":"gls/gnls (nlme in R), variance modelled as a power of DBH; R2 is the generalized R2 (model efficiency)"},"evidence":[{"field":"expression","quote":"V̂ = 157,9 Dbh2,55","locator":"Équation (3), Résultats / Tableau II, pp. 92-95"},{"field":"fit.n_trees","quote":"55 arbres de 10 à 120 cm de diamètre, appartenant à 23 espèces","locator":"Résumé, p. 88"},{"field":"fit.dbh_min_cm","quote":"La plage de validité de ces équations est de 10 à 120 cm.","locator":"Comparaison des cinq modèles, p. 94"},{"field":"fit.r2","quote":"R² généralisé 0,93","locator":"Tableau II, p. 95"},{"field":"units","quote":"Vi désigne le volume total de bois jusqu'à un diamètre découpe de 1 cm (en cm3), Dbhi désigne le diamètre à hauteur de poitrine (en cm) et Hi la hauteur (en cm)","locator":"Méthodes de calcul, p. 91"}],"check":[{"inputs":{"D":20},"expected":0.3281,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":50},"expected":3.3943,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":100},"expected":19.878,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Total wood volume of the tree (stem and branches) down to a 1 cm diameter cut-off, not biomass. The paper fits V in cm3 with DBH in cm and, per its Methods, H in cm; the unit list has no cm3, so the published form is divided by 1000 and given in dm3, and the canonical form is divided by 1e6 to give m3 (and H in m is multiplied by 100). The paper says biomass follows from multiplying volume by specific density plus a small foliage correction, but gives no equation, so no biomass equation is stored. Sample 55 trees, DBH over 10 cm, more than 17 above 45 cm. R2 is the generalized R2 of Mayer and Butler (1993)."},{"id":"dorisca-2011-quadratic-d-h","source":"dorisca-2011","name":"Cameroon semi-deciduous forest total wood volume, Eq. (1), quadratic in DBH plus height","output":{"quantity":"total_volume"},"expression":"(356672.6 - 46080.1 * D + 2300.3 * D^2 - 31.5 * H * 100) / 1e6","published":{"expression":"(356672.6 - 46080.1 * DBH + 2300.3 * DBH^2 - 31.5 * Hcm) / 1000","units":{"DBH":"cm","Hcm":"cm"},"variables":{"DBH":"D","Hcm":"H"},"output_unit":"dm3"},"taxon":{"level":"mixed","name":"23 timber species of semi-deciduous forest (mixed)","group":"broadleaf"},"region":{"scope":"regional","countries":["CM"],"place":"Two forest management units (UFA 10-026 and 10-051), south-east Cameroon, about 1,500 mm rain per year","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":55,"dbh_min_cm":10,"dbh_max_cm":120,"r2":0.93,"method":"gls/gnls (nlme in R), variance modelled as a power of DBH; R2 is the generalized R2 (model efficiency)"},"evidence":[{"field":"expression","quote":"V̂ = 356 672,6 - 46 080,1 Dbh + 2 300,3 Dbh² - 31,5 H","locator":"Équation (1), Résultats / Tableau II, pp. 92-95"},{"field":"fit.n_trees","quote":"55 arbres de 10 à 120 cm de diamètre, appartenant à 23 espèces","locator":"Résumé, p. 88"},{"field":"fit.dbh_min_cm","quote":"La plage de validité de ces équations est de 10 à 120 cm.","locator":"Comparaison des cinq modèles, p. 94"},{"field":"fit.r2","quote":"R² généralisé 0,93","locator":"Tableau II, p. 95"},{"field":"units","quote":"Vi désigne le volume total de bois jusqu'à un diamètre découpe de 1 cm (en cm3), Dbhi désigne le diamètre à hauteur de poitrine (en cm) et Hi la hauteur (en cm)","locator":"Méthodes de calcul, p. 91"}],"check":[{"inputs":{"D":20,"H":20},"expected":0.29219,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":50,"H":30},"expected":3.7089,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":100,"H":40},"expected":18.626,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Total wood volume of the tree (stem and branches) down to a 1 cm diameter cut-off, not biomass. The paper fits V in cm3 with DBH in cm and, per its Methods, H in cm; the unit list has no cm3, so the published form is divided by 1000 and given in dm3, and the canonical form is divided by 1e6 to give m3 (and H in m is multiplied by 100). The Methods state H is in cm for all models; this is the only use of H in this equation and its term is small (-31.5 per cm). The paper says biomass follows from multiplying volume by specific density plus a small foliage correction, but gives no equation, so no biomass equation is stored. Sample 55 trees, DBH over 10 cm, more than 17 above 45 cm. R2 is the generalized R2 of Mayer and Butler (1993)."},{"id":"dorisca-2011-quadratic-d","source":"dorisca-2011","name":"Cameroon semi-deciduous forest total wood volume, Eq. (2), quadratic in DBH only","output":{"quantity":"total_volume"},"expression":"(325557.3 - 47298.4 * D + 2294.2 * D^2) / 1e6","published":{"expression":"(325557.3 - 47298.4 * DBH + 2294.2 * DBH^2) / 1000","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"dm3"},"taxon":{"level":"mixed","name":"23 timber species of semi-deciduous forest (mixed)","group":"broadleaf"},"region":{"scope":"regional","countries":["CM"],"place":"Two forest management units (UFA 10-026 and 10-051), south-east Cameroon, about 1,500 mm rain per year","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":55,"dbh_min_cm":10,"dbh_max_cm":120,"r2":0.93,"method":"gls/gnls (nlme in R), variance modelled as a power of DBH; R2 is the generalized R2 (model efficiency)"},"evidence":[{"field":"expression","quote":"V̂ = 325 557,3 - 47 298,4 Dbh + 2 294,2 Dbh²","locator":"Équation (2), Résultats / Tableau II, pp. 92-95"},{"field":"fit.n_trees","quote":"55 arbres de 10 à 120 cm de diamètre, appartenant à 23 espèces","locator":"Résumé, p. 88"},{"field":"fit.dbh_min_cm","quote":"La plage de validité de ces équations est de 10 à 120 cm.","locator":"Comparaison des cinq modèles, p. 94"},{"field":"fit.r2","quote":"R² généralisé 0,93","locator":"Tableau II, p. 95"},{"field":"units","quote":"Vi désigne le volume total de bois jusqu'à un diamètre découpe de 1 cm (en cm3), Dbhi désigne le diamètre à hauteur de poitrine (en cm) et Hi la hauteur (en cm)","locator":"Méthodes de calcul, p. 91"}],"check":[{"inputs":{"D":20},"expected":0.29727,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":50},"expected":3.6961,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":100},"expected":18.538,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Total wood volume of the tree (stem and branches) down to a 1 cm diameter cut-off, not biomass. The paper fits V in cm3 with DBH in cm and, per its Methods, H in cm; the unit list has no cm3, so the published form is divided by 1000 and given in dm3, and the canonical form is divided by 1e6 to give m3 (and H in m is multiplied by 100). The paper says biomass follows from multiplying volume by specific density plus a small foliage correction, but gives no equation, so no biomass equation is stored. Sample 55 trees, DBH over 10 cm, more than 17 above 45 cm. R2 is the generalized R2 of Mayer and Butler (1993)."},{"id":"du-2026-fir-agb","source":"du-2026","name":"Chinese fir aboveground biomass (compatible total-biomass system)","output":{"quantity":"agb"},"expression":"0.065662 * D^1.750420 * H^0.780381","published":{"expression":"0.065662 * D^1.750420 * H^0.780381","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Cunninghamia lanceolata","family":"Cupressaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Hunan Province (14 prefecture-level cities and autonomous prefectures)","biomes":["subtropical"]},"stand":"mixed","fit":{"n_trees":154,"dbh_min_cm":2.2,"dbh_max_cm":35.3,"h_min_m":2.5,"h_max_m":25.6,"r2":0.9242,"method":"weighted nonlinear least squares"},"evidence":[{"field":"fit.n_trees","quote":"The sample comprised 154 Chinese fir, 150 poplar, and 157 oak trees.","locator":"Section 2.2"},{"field":"fit.dbh_min_cm","quote":"DBH (cm) 2.2 35.3 19.88 7.77","locator":"Table 1, Chinese fir"},{"field":"fit.h_min_m","quote":"Tree height (m) 2.5 25.6 14.25 5.38","locator":"Table 1, Chinese fir"},{"field":"expression","quote":"Baboveground = 0.065662D 1.750420 H 0.780381 (30)","locator":"Table 8, Eq. 29-31"},{"field":"fit.r2","quote":"R2 0.9242 (aboveground model, evaluation table)","locator":"Table 11"}],"check":[{"inputs":{"D":10,"H":9},"expected":20.531,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":30,"H":20},"expected":261.94,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Final aboveground model of the compatible system. Compatible total-biomass system (aboveground fitted independently, total and root fitted jointly by simultaneous estimation; weighted nonlinear least squares). Total = aboveground + root. The paper lists the sample as stratified random felled trees across eight diameter classes (4-32 cm) from 2022-2023; the reported minimum and maximum DBH and height are for all sampled trees of the species (Table 1). Root biomass was measured on a subset only (whole-root excavation: root collar, coarse roots, fine roots), so root and total fit ranges are not given beyond the full sample. No back-transform factor (nonlinear fit). The paper also gives aboveground-component (stem, crown, wood, bark, branch, foliage) systems (Tables 17-39), not added here."},{"id":"du-2026-fir-root","source":"du-2026","name":"Chinese fir root biomass (compatible total-biomass system)","output":{"quantity":"bgb"},"expression":"0.024760 * (D^2 * H)^0.774387","published":{"expression":"0.024760 * (D^2 * H)^0.774387","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Cunninghamia lanceolata","family":"Cupressaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Hunan Province (14 prefecture-level cities and autonomous prefectures)","biomes":["subtropical"]},"stand":"mixed","fit":{"n_trees":74,"r2":0.7734,"method":"weighted nonlinear least squares"},"evidence":[{"field":"fit.n_trees","quote":"Chinese fir 154 (74) (Total Samples (Root Samples))","locator":"Table 1"},{"field":"expression","quote":"Broot = 0.024760 (D 2 H) 0.774387 (31)","locator":"Table 8, Eq. 29-31"},{"field":"fit.r2","quote":"(22) * 0.7734 7.98 0.45 3.68 29.31 90.96","locator":"Table 11, row (22) * (root model evaluated on the trees with measured root samples)"}],"check":[{"inputs":{"D":10,"H":9},"expected":4.8026,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":30,"H":20},"expected":48.863,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Final root model of the compatible system, fitted on trees with root samples (n from Table 1). Compatible total-biomass system (aboveground fitted independently, total and root fitted jointly by simultaneous estimation; weighted nonlinear least squares). Total = aboveground + root. The paper lists the sample as stratified random felled trees across eight diameter classes (4-32 cm) from 2022-2023; the reported minimum and maximum DBH and height are for all sampled trees of the species (Table 1). Root biomass was measured on a subset only (whole-root excavation: root collar, coarse roots, fine roots), so root and total fit ranges are not given beyond the full sample. No back-transform factor (nonlinear fit). The paper also gives aboveground-component (stem, crown, wood, bark, branch, foliage) systems (Tables 17-39), not added here. R² is the evaluation row marked * (the 74 trees with measured roots, matching n_trees; the paper's Discussion cites these starred values as the root-model R²); the unstarred row (0.8762) is evaluated over all sampled trees, most of which have no measured roots."},{"id":"du-2026-fir-total","source":"du-2026","name":"Chinese fir total tree biomass (compatible total-biomass system)","output":{"quantity":"total_biomass"},"expression":"0.065662 * D^1.750420 * H^0.780381 + 0.024760 * (D^2 * H)^0.774387","published":{"expression":"0.065662 * D^1.750420 * H^0.780381 + 0.024760 * (D^2 * H)^0.774387","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Cunninghamia lanceolata","family":"Cupressaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Hunan Province (14 prefecture-level cities and autonomous prefectures)","biomes":["subtropical"]},"stand":"mixed","fit":{"n_trees":154,"dbh_min_cm":2.2,"dbh_max_cm":35.3,"h_min_m":2.5,"h_max_m":25.6,"r2":0.9208,"method":"weighted nonlinear least squares"},"evidence":[{"field":"fit.n_trees","quote":"The sample comprised 154 Chinese fir, 150 poplar, and 157 oak trees.","locator":"Section 2.2"},{"field":"fit.dbh_min_cm","quote":"DBH (cm) 2.2 35.3 19.88 7.77","locator":"Table 1, Chinese fir"},{"field":"fit.h_min_m","quote":"Tree height (m) 2.5 25.6 14.25 5.38","locator":"Table 1, Chinese fir"},{"field":"expression","quote":"Btotal = 0.065662D 1.750420 H 0.780381 + 0.024760 (D 2 H) 0.774387 (29)","locator":"Table 8, Eq. 29-31"},{"field":"expression","quote":"(20) 0.065662 1.750420 0.780381 0.024760 0.774387 10.77 7.19 44.54 6.16","locator":"Table 8 (parameters)"},{"field":"fit.r2","quote":"R2 0.9208 (total biomass model, evaluation table)","locator":"Table 11"}],"check":[{"inputs":{"D":10,"H":9},"expected":25.333,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":30,"H":20},"expected":310.8,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Final total-biomass model (aboveground + root). Compatible total-biomass system (aboveground fitted independently, total and root fitted jointly by simultaneous estimation; weighted nonlinear least squares). Total = aboveground + root. The paper lists the sample as stratified random felled trees across eight diameter classes (4-32 cm) from 2022-2023; the reported minimum and maximum DBH and height are for all sampled trees of the species (Table 1). Root biomass was measured on a subset only (whole-root excavation: root collar, coarse roots, fine roots), so root and total fit ranges are not given beyond the full sample. No back-transform factor (nonlinear fit). The paper also gives aboveground-component (stem, crown, wood, bark, branch, foliage) systems (Tables 17-39), not added here."},{"id":"du-2026-oak-agb","source":"du-2026","name":"Oak aboveground biomass (compatible total-biomass system)","output":{"quantity":"agb"},"expression":"0.092757 * (D^2 * H)^0.89013","published":{"expression":"0.092757 * (D^2 * H)^0.89013","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"genus","name":"Quercus","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CN"],"place":"Hunan Province (14 prefecture-level cities and autonomous prefectures)","biomes":["subtropical"]},"stand":"mixed","fit":{"n_trees":157,"dbh_min_cm":3.5,"dbh_max_cm":38.9,"h_min_m":3.7,"h_max_m":24.7,"r2":0.9634,"method":"weighted nonlinear least squares"},"evidence":[{"field":"fit.n_trees","quote":"The sample comprised 154 Chinese fir, 150 poplar, and 157 oak trees.","locator":"Section 2.2"},{"field":"fit.dbh_min_cm","quote":"DBH (cm) 3.5 38.9 16.69 8.87","locator":"Table 1, oak"},{"field":"fit.h_min_m","quote":"Tree height (m) 3.7 24.7 12.93 4.70","locator":"Table 1, oak"},{"field":"expression","quote":"Baboveground = 0.0927573 (D 2 H) 0.89013 (36)","locator":"Table 10, Eq. 35-37"},{"field":"fit.r2","quote":"R2 0.9634 (aboveground model, evaluation table)","locator":"Table 13"}],"check":[{"inputs":{"D":10,"H":9},"expected":39.537,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":30,"H":20},"expected":568.97,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Final aboveground model of the compatible system. Compatible total-biomass system (aboveground fitted independently, total and root fitted jointly by simultaneous estimation; weighted nonlinear least squares). Total = aboveground + root. The paper lists the sample as stratified random felled trees across eight diameter classes (4-32 cm) from 2022-2023; the reported minimum and maximum DBH and height are for all sampled trees of the species (Table 1). Root biomass was measured on a subset only (whole-root excavation: root collar, coarse roots, fine roots), so root and total fit ranges are not given beyond the full sample. No back-transform factor (nonlinear fit). The paper also gives aboveground-component (stem, crown, wood, bark, branch, foliage) systems (Tables 17-39), not added here. Eq. 35 prints C0 as 0.0927573 while Table 10 prints 0.092757; Table 10 is used."},{"id":"du-2026-oak-root","source":"du-2026","name":"Oak root biomass (compatible total-biomass system)","output":{"quantity":"bgb"},"expression":"0.018969 * (D^2 * H)^0.89162","published":{"expression":"0.018969 * (D^2 * H)^0.89162","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"genus","name":"Quercus","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CN"],"place":"Hunan Province (14 prefecture-level cities and autonomous prefectures)","biomes":["subtropical"]},"stand":"mixed","fit":{"n_trees":50,"r2":0.7778,"method":"weighted nonlinear least squares"},"evidence":[{"field":"fit.n_trees","quote":"Oak 157 (50) (Total Samples (Root Samples))","locator":"Table 1"},{"field":"expression","quote":"Broot = 0.018969 (D 2 H) 0.89162 (37)","locator":"Table 10, Eq. 35-37"},{"field":"fit.r2","quote":"(28) * 0.7778 23.78 −0.80 14.34 47.64 85.29","locator":"Table 13, row (28) * (root model evaluated on the trees with measured root samples)"}],"check":[{"inputs":{"D":10,"H":9},"expected":8.1678,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":30,"H":20},"expected":118.07,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Final root model of the compatible system, fitted on trees with root samples (n from Table 1). Compatible total-biomass system (aboveground fitted independently, total and root fitted jointly by simultaneous estimation; weighted nonlinear least squares). Total = aboveground + root. The paper lists the sample as stratified random felled trees across eight diameter classes (4-32 cm) from 2022-2023; the reported minimum and maximum DBH and height are for all sampled trees of the species (Table 1). Root biomass was measured on a subset only (whole-root excavation: root collar, coarse roots, fine roots), so root and total fit ranges are not given beyond the full sample. No back-transform factor (nonlinear fit). The paper also gives aboveground-component (stem, crown, wood, bark, branch, foliage) systems (Tables 17-39), not added here. Eq. 37 and Table 10 print the same parameters. R² is the evaluation row marked * (the 50 trees with measured roots, matching n_trees; the paper's Discussion cites these starred values as the root-model R²); the unstarred row (0.8592) is evaluated over all sampled trees, most of which have no measured roots."},{"id":"du-2026-oak-total","source":"du-2026","name":"Oak total tree biomass (compatible total-biomass system)","output":{"quantity":"total_biomass"},"expression":"0.092757 * (D^2 * H)^0.89013 + 0.018969 * (D^2 * H)^0.89162","published":{"expression":"0.092757 * (D^2 * H)^0.89013 + 0.018969 * (D^2 * H)^0.89162","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"genus","name":"Quercus","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CN"],"place":"Hunan Province (14 prefecture-level cities and autonomous prefectures)","biomes":["subtropical"]},"stand":"mixed","fit":{"n_trees":157,"dbh_min_cm":3.5,"dbh_max_cm":38.9,"h_min_m":3.7,"h_max_m":24.7,"r2":0.9651,"method":"weighted nonlinear least squares"},"evidence":[{"field":"fit.n_trees","quote":"The sample comprised 154 Chinese fir, 150 poplar, and 157 oak trees.","locator":"Section 2.2"},{"field":"fit.dbh_min_cm","quote":"DBH (cm) 3.5 38.9 16.69 8.87","locator":"Table 1, oak"},{"field":"fit.h_min_m","quote":"Tree height (m) 3.7 24.7 12.93 4.70","locator":"Table 1, oak"},{"field":"expression","quote":"Btotal = 0.0927573 (D 2 H) 0.89013 + 0.018969 (D 2 H) 0.89162 (35)","locator":"Table 10, Eq. 35-37"},{"field":"expression","quote":"(26) 0.092757 0.890130 0.018969 0.891620 9.66 1.36 68.08 7.98","locator":"Table 10 (parameters)"},{"field":"fit.r2","quote":"R2 0.9651 (total biomass model, evaluation table)","locator":"Table 13"}],"check":[{"inputs":{"D":10,"H":9},"expected":47.705,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":30,"H":20},"expected":687.04,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Final total-biomass model (aboveground + root). Compatible total-biomass system (aboveground fitted independently, total and root fitted jointly by simultaneous estimation; weighted nonlinear least squares). Total = aboveground + root. The paper lists the sample as stratified random felled trees across eight diameter classes (4-32 cm) from 2022-2023; the reported minimum and maximum DBH and height are for all sampled trees of the species (Table 1). Root biomass was measured on a subset only (whole-root excavation: root collar, coarse roots, fine roots), so root and total fit ranges are not given beyond the full sample. No back-transform factor (nonlinear fit). The paper also gives aboveground-component (stem, crown, wood, bark, branch, foliage) systems (Tables 17-39), not added here. Eq. 35 prints C0 as 0.0927573 while Table 10 prints 0.092757; Table 10 is used."},{"id":"du-2026-poplar-agb","source":"du-2026","name":"Poplar aboveground biomass (compatible total-biomass system)","output":{"quantity":"agb"},"expression":"0.046471 * D^2.171796 * H^0.462424","published":{"expression":"0.046471 * D^2.171796 * H^0.462424","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"genus","name":"Populus","family":"Salicaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CN"],"place":"Hunan Province (14 prefecture-level cities and autonomous prefectures)","biomes":["subtropical"]},"stand":"mixed","fit":{"n_trees":150,"dbh_min_cm":2.2,"dbh_max_cm":37.9,"h_min_m":3.7,"h_max_m":29.6,"r2":0.9625,"method":"weighted nonlinear least squares"},"evidence":[{"field":"fit.n_trees","quote":"The sample comprised 154 Chinese fir, 150 poplar, and 157 oak trees.","locator":"Section 2.2"},{"field":"fit.dbh_min_cm","quote":"DBH (cm) 2.2 37.9 17.13 8.95","locator":"Table 1, poplar"},{"field":"fit.h_min_m","quote":"Tree height (m) 3.7 29.6 16.39 6.81","locator":"Table 1, poplar"},{"field":"expression","quote":"Baboveground = 0.046471D 2.171796 H 0.462424 (33)","locator":"Table 9, Eq. 32-34"},{"field":"fit.r2","quote":"R2 0.9625 (aboveground model, evaluation table)","locator":"Table 12"}],"check":[{"inputs":{"D":10,"H":9},"expected":19.065,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":30,"H":20},"expected":299.79,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Final aboveground model of the compatible system. Compatible total-biomass system (aboveground fitted independently, total and root fitted jointly by simultaneous estimation; weighted nonlinear least squares). Total = aboveground + root. The paper lists the sample as stratified random felled trees across eight diameter classes (4-32 cm) from 2022-2023; the reported minimum and maximum DBH and height are for all sampled trees of the species (Table 1). Root biomass was measured on a subset only (whole-root excavation: root collar, coarse roots, fine roots), so root and total fit ranges are not given beyond the full sample. No back-transform factor (nonlinear fit). The paper also gives aboveground-component (stem, crown, wood, bark, branch, foliage) systems (Tables 17-39), not added here."},{"id":"du-2026-poplar-root","source":"du-2026","name":"Poplar root biomass (compatible total-biomass system)","output":{"quantity":"bgb"},"expression":"0.013116 * (D^2 * H)^0.82231","published":{"expression":"0.013116 * (D^2 * H)^0.82231","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"genus","name":"Populus","family":"Salicaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CN"],"place":"Hunan Province (14 prefecture-level cities and autonomous prefectures)","biomes":["subtropical"]},"stand":"mixed","fit":{"n_trees":36,"r2":0.7146,"method":"weighted nonlinear least squares"},"evidence":[{"field":"fit.n_trees","quote":"Poplar 150 (36) (Total Samples (Root Samples))","locator":"Table 1"},{"field":"expression","quote":"Broot = 0.013116 (D 2 H) 0.82231 (34)","locator":"Table 9, Eq. 32-34"},{"field":"fit.r2","quote":"(25) * 0.7146 12.39 −1.95 −8.34 33.68 79.79","locator":"Table 12, row (25) * (root model evaluated on the trees with measured root samples)"}],"check":[{"inputs":{"D":10,"H":9},"expected":3.5246,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":30,"H":20},"expected":41.396,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Final root model of the compatible system, fitted on trees with root samples (n from Table 1). Compatible total-biomass system (aboveground fitted independently, total and root fitted jointly by simultaneous estimation; weighted nonlinear least squares). Total = aboveground + root. The paper lists the sample as stratified random felled trees across eight diameter classes (4-32 cm) from 2022-2023; the reported minimum and maximum DBH and height are for all sampled trees of the species (Table 1). Root biomass was measured on a subset only (whole-root excavation: root collar, coarse roots, fine roots), so root and total fit ranges are not given beyond the full sample. No back-transform factor (nonlinear fit). The paper also gives aboveground-component (stem, crown, wood, bark, branch, foliage) systems (Tables 17-39), not added here. R² is the evaluation row marked * (the 36 trees with measured roots, matching n_trees; the paper's Discussion cites these starred values as the root-model R²); the unstarred row (0.8239) is evaluated over all sampled trees, most of which have no measured roots."},{"id":"du-2026-poplar-total","source":"du-2026","name":"Poplar total tree biomass (compatible total-biomass system)","output":{"quantity":"total_biomass"},"expression":"0.046471 * D^2.171796 * H^0.462424 + 0.013116 * (D^2 * H)^0.82231","published":{"expression":"0.046471 * D^2.171796 * H^0.462424 + 0.013116 * (D^2 * H)^0.82231","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"genus","name":"Populus","family":"Salicaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CN"],"place":"Hunan Province (14 prefecture-level cities and autonomous prefectures)","biomes":["subtropical"]},"stand":"mixed","fit":{"n_trees":150,"dbh_min_cm":2.2,"dbh_max_cm":37.9,"h_min_m":3.7,"h_max_m":29.6,"r2":0.9671,"method":"weighted nonlinear least squares"},"evidence":[{"field":"fit.n_trees","quote":"The sample comprised 154 Chinese fir, 150 poplar, and 157 oak trees.","locator":"Section 2.2"},{"field":"fit.dbh_min_cm","quote":"DBH (cm) 2.2 37.9 17.13 8.95","locator":"Table 1, poplar"},{"field":"fit.h_min_m","quote":"Tree height (m) 3.7 29.6 16.39 6.81","locator":"Table 1, poplar"},{"field":"expression","quote":"Btotal = 0.046471D 2.171796 H 0.462424 + 0.013116 (D 2 H) 0.82231 (32)","locator":"Table 9, Eq. 32-34"},{"field":"expression","quote":"(23) 0.046471 2.171796 0.462424 0.013116 0.822310 10.66 3.88 65.27 8.07","locator":"Table 9 (parameters)"},{"field":"fit.r2","quote":"R2 0.9671 (total biomass model, evaluation table)","locator":"Table 12"}],"check":[{"inputs":{"D":10,"H":9},"expected":22.59,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":30,"H":20},"expected":341.18,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Final total-biomass model (aboveground + root). Compatible total-biomass system (aboveground fitted independently, total and root fitted jointly by simultaneous estimation; weighted nonlinear least squares). Total = aboveground + root. The paper lists the sample as stratified random felled trees across eight diameter classes (4-32 cm) from 2022-2023; the reported minimum and maximum DBH and height are for all sampled trees of the species (Table 1). Root biomass was measured on a subset only (whole-root excavation: root collar, coarse roots, fine roots), so root and total fit ranges are not given beyond the full sample. No back-transform factor (nonlinear fit). The paper also gives aboveground-component (stem, crown, wood, bark, branch, foliage) systems (Tables 17-39), not added here."},{"id":"dutca-2020-beech-bay1-d","source":"dutca-2020","name":"European beech AGB, Bayesian, Dataset #1, D only","output":{"quantity":"agb"},"expression":"1.0211 * exp(-2.1768 + 2.4884 * ln(D))","published":{"expression":"1.0211 * exp(-2.1768 + 2.4884 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Fagus sylvatica","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["RO"],"place":"Șinca virgin forest, Romania","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":15,"dbh_min_cm":5.7,"dbh_max_cm":86.3,"rse":0.2042,"cf":1.0211,"method":"Bayesian log-log model with informative priors from the generic sample"},"evidence":[{"field":"expression","quote":"ln(D): β0 = -2.1768, β1 = 2.4884, RSE = 0.2042, CF = 1.0211","locator":"Table 5, European beech, Bayesian, Dataset #1, ln(D) (Equation 2; back-transformed as Equation 4)"},{"field":"fit.n_trees","quote":"15 European beech and 14 silver fir trees","locator":"Section 2.1.2, p. 3"}],"check":[{"inputs":{"D":20},"expected":200.0687,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":50},"expected":1956.1989,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Fit on Dataset #1 (full site sample, Bayesian priors from generic data). Whole-tree dry AGB including foliage (stem and branches with leaves/needles weighed and dried). Equation form AGB = exp(β0)·D^β1·(H^β2)·CF with CF = exp(σ²/2) printed in Table 5 and applied here. D in cm, H in m, output kg (units not restated beside Table 5; stated in Table 1 for D, H, AGB)."},{"id":"dutca-2020-beech-bay1-dh","source":"dutca-2020","name":"European beech AGB, Bayesian, Dataset #1, D and H","output":{"quantity":"agb"},"expression":"1.006 * exp(-3.0637 + 2.1497 * ln(D) + 0.6553 * ln(H))","published":{"expression":"1.006 * exp(-3.0637 + 2.1497 * ln(D) + 0.6553 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Fagus sylvatica","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["RO"],"place":"Șinca virgin forest, Romania","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":15,"dbh_min_cm":5.7,"dbh_max_cm":86.3,"h_min_m":6.2,"h_max_m":40.3,"rse":0.1091,"cf":1.006,"method":"Bayesian log-log model with informative priors from the generic sample"},"evidence":[{"field":"expression","quote":"ln(D),ln(H): β0 = -3.0637, β1 = 2.1497, β2 = 0.6553, RSE = 0.1091, CF = 1.006","locator":"Table 5, European beech, Bayesian, Dataset #1, ln(D),ln(H) (Equation 3; back-transformed as Equation 5)"},{"field":"fit.n_trees","quote":"15 European beech and 14 silver fir trees","locator":"Section 2.1.2, p. 3"}],"check":[{"inputs":{"D":20,"H":16},"expected":181.1065,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":50,"H":30},"expected":1960.1231,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Fit on Dataset #1 (full site sample, Bayesian priors from generic data). Whole-tree dry AGB including foliage (stem and branches with leaves/needles weighed and dried). Equation form AGB = exp(β0)·D^β1·(H^β2)·CF with CF = exp(σ²/2) printed in Table 5 and applied here. D in cm, H in m, output kg (units not restated beside Table 5; stated in Table 1 for D, H, AGB)."},{"id":"dutca-2020-beech-bay2-d","source":"dutca-2020","name":"European beech AGB, Bayesian, Dataset #2, D only","output":{"quantity":"agb"},"expression":"1.0283 * exp(-2.1456 + 2.4349 * ln(D))","published":{"expression":"1.0283 * exp(-2.1456 + 2.4349 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Fagus sylvatica","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["RO"],"place":"Șinca virgin forest, Romania","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":7,"dbh_min_cm":5.7,"dbh_max_cm":20,"rse":0.2363,"cf":1.0283,"method":"Bayesian log-log model with informative priors from the generic sample"},"evidence":[{"field":"expression","quote":"ln(D): β0 = -2.1456, β1 = 2.4349, RSE = 0.2363, CF = 1.0283","locator":"Table 5, European beech, Bayesian, Dataset #2, ln(D) (Equation 2; back-transformed as Equation 4)"},{"field":"fit.n_trees","quote":"smallest 7 trees for each of the two species","locator":"Section 2.1.2 (Dataset #2), p. 4"}],"check":[{"inputs":{"D":15},"expected":87.8946,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25},"expected":304.889,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Fit on Dataset #2 (reduced site sample of 7 trees, Bayesian priors from generic data). Whole-tree dry AGB including foliage (stem and branches with leaves/needles weighed and dried). Equation form AGB = exp(β0)·D^β1·(H^β2)·CF with CF = exp(σ²/2) printed in Table 5 and applied here. D in cm, H in m, output kg (units not restated beside Table 5; stated in Table 1 for D, H, AGB)."},{"id":"dutca-2020-beech-bay2-dh","source":"dutca-2020","name":"European beech AGB, Bayesian, Dataset #2, D and H","output":{"quantity":"agb"},"expression":"1.0109 * exp(-2.9856 + 2.1347 * ln(D) + 0.6324 * ln(H))","published":{"expression":"1.0109 * exp(-2.9856 + 2.1347 * ln(D) + 0.6324 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Fagus sylvatica","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["RO"],"place":"Șinca virgin forest, Romania","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":7,"dbh_min_cm":5.7,"dbh_max_cm":20,"h_min_m":6.2,"h_max_m":19.8,"rse":0.1475,"cf":1.0109,"method":"Bayesian log-log model with informative priors from the generic sample"},"evidence":[{"field":"expression","quote":"ln(D),ln(H): β0 = -2.9856, β1 = 2.1347, β2 = 0.6324, RSE = 0.1475, CF = 1.0109","locator":"Table 5, European beech, Bayesian, Dataset #2, ln(D),ln(H) (Equation 3; back-transformed as Equation 5)"},{"field":"fit.n_trees","quote":"smallest 7 trees for each of the two species","locator":"Section 2.1.2 (Dataset #2), p. 4"}],"check":[{"inputs":{"D":15,"H":12},"expected":79.6443,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25,"H":18},"expected":306.2637,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Fit on Dataset #2 (reduced site sample of 7 trees, Bayesian priors from generic data). Whole-tree dry AGB including foliage (stem and branches with leaves/needles weighed and dried). Equation form AGB = exp(β0)·D^β1·(H^β2)·CF with CF = exp(σ²/2) printed in Table 5 and applied here. D in cm, H in m, output kg (units not restated beside Table 5; stated in Table 1 for D, H, AGB)."},{"id":"dutca-2020-beech-lm1-d","source":"dutca-2020","name":"European beech AGB, LM, Dataset #1, D only","output":{"quantity":"agb"},"expression":"1.0089 * exp(-2.6634 + 2.6368 * ln(D))","published":{"expression":"1.0089 * exp(-2.6634 + 2.6368 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Fagus sylvatica","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["RO"],"place":"Șinca virgin forest, Romania","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":15,"dbh_min_cm":5.7,"dbh_max_cm":86.3,"rse":0.1337,"cf":1.0089,"method":"linear regression on log-transformed data (site-specific sample)"},"evidence":[{"field":"expression","quote":"ln(D): β0 = -2.6634, β1 = 2.6368, RSE = 0.1337, CF = 1.0089","locator":"Table 5, European beech, LM, Dataset #1, ln(D) (Equation 2; back-transformed as Equation 4)"},{"field":"fit.n_trees","quote":"15 European beech and 14 silver fir trees","locator":"Section 2.1.2, p. 3"}],"check":[{"inputs":{"D":20},"expected":189.5414,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":50},"expected":2123.2068,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Fit on Dataset #1 (15 beech, 14 fir site trees). Whole-tree dry AGB including foliage (stem and branches with leaves/needles weighed and dried). Equation form AGB = exp(β0)·D^β1·(H^β2)·CF with CF = exp(σ²/2) printed in Table 5 and applied here. D in cm, H in m, output kg (units not restated beside Table 5; stated in Table 1 for D, H, AGB)."},{"id":"dutca-2020-beech-lm1-dh","source":"dutca-2020","name":"European beech AGB, LM, Dataset #1, D and H","output":{"quantity":"agb"},"expression":"1.005 * exp(-3.1632 + 2.1468 * ln(D) + 0.6909 * ln(H))","published":{"expression":"1.005 * exp(-3.1632 + 2.1468 * ln(D) + 0.6909 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Fagus sylvatica","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["RO"],"place":"Șinca virgin forest, Romania","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":15,"dbh_min_cm":5.7,"dbh_max_cm":86.3,"h_min_m":6.2,"h_max_m":40.3,"rse":0.1,"cf":1.005,"method":"linear regression on log-transformed data (site-specific sample)"},"evidence":[{"field":"expression","quote":"ln(D),ln(H): β0 = -3.1632, β1 = 2.1468, β2 = 0.6909, RSE = 0.1, CF = 1.005","locator":"Table 5, European beech, LM, Dataset #1, ln(D),ln(H) (Equation 3; back-transformed as Equation 5)"},{"field":"fit.n_trees","quote":"15 European beech and 14 silver fir trees","locator":"Section 2.1.2, p. 3"}],"check":[{"inputs":{"D":20,"H":16},"expected":179.2188,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":50,"H":30},"expected":1978.325,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Fit on Dataset #1 (15 beech, 14 fir site trees). Whole-tree dry AGB including foliage (stem and branches with leaves/needles weighed and dried). Equation form AGB = exp(β0)·D^β1·(H^β2)·CF with CF = exp(σ²/2) printed in Table 5 and applied here. D in cm, H in m, output kg (units not restated beside Table 5; stated in Table 1 for D, H, AGB)."},{"id":"dutca-2020-beech-rim3-d","source":"dutca-2020","name":"European beech AGB, RIM, Dataset #3, D only","output":{"quantity":"agb"},"expression":"1.0148 * exp(-2.1312 + 2.4714 * ln(D))","published":{"expression":"1.0148 * exp(-2.1312 + 2.4714 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Fagus sylvatica","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["RO"],"place":"Șinca virgin forest, Romania","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":159,"dbh_min_cm":5.2,"dbh_max_cm":86.3,"rse":0.1712,"cf":1.0148,"method":"random intercept mixed model on log-log data (generic plus site-specific trees); estimates for the Șinca site"},"evidence":[{"field":"expression","quote":"ln(D): β0 = -2.1312, β1 = 2.4714, RSE = 0.1712, CF = 1.0148","locator":"Table 5, European beech, RIM, Dataset #3, ln(D) (Equation 2; back-transformed as Equation 4)"},{"field":"fit.n_trees","quote":"159 / 116","locator":"Table 3, Dataset #3 sample size"}],"check":[{"inputs":{"D":20},"expected":197.7778,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":50},"expected":1903.9105,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Fit on Dataset #3 (generic + full site sample). Whole-tree dry AGB including foliage (stem and branches with leaves/needles weighed and dried). Equation form AGB = exp(β0)·D^β1·(H^β2)·CF with CF = exp(σ²/2) printed in Table 5 and applied here. D in cm, H in m, output kg (units not restated beside Table 5; stated in Table 1 for D, H, AGB). For RIM models the parameters printed are those retained for the Șinca site."},{"id":"dutca-2020-beech-rim3-dh","source":"dutca-2020","name":"European beech AGB, RIM, Dataset #3, D and H","output":{"quantity":"agb"},"expression":"1.0106 * exp(-3.0039 + 2.1151 * ln(D) + 0.6733 * ln(H))","published":{"expression":"1.0106 * exp(-3.0039 + 2.1151 * ln(D) + 0.6733 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Fagus sylvatica","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["RO"],"place":"Șinca virgin forest, Romania","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":159,"dbh_min_cm":5.2,"dbh_max_cm":86.3,"h_min_m":6.2,"h_max_m":40.3,"rse":0.145,"cf":1.0106,"method":"random intercept mixed model on log-log data (generic plus site-specific trees); estimates for the Șinca site"},"evidence":[{"field":"expression","quote":"ln(D),ln(H): β0 = -3.0039, β1 = 2.1151, β2 = 0.6733, RSE = 0.145, CF = 1.0106","locator":"Table 5, European beech, RIM, Dataset #3, ln(D),ln(H) (Equation 3; back-transformed as Equation 5)"},{"field":"fit.n_trees","quote":"159 / 116","locator":"Table 3, Dataset #3 sample size"}],"check":[{"inputs":{"D":20,"H":16},"expected":183.0394,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":50,"H":30},"expected":1941.0615,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Fit on Dataset #3 (generic + full site sample). Whole-tree dry AGB including foliage (stem and branches with leaves/needles weighed and dried). Equation form AGB = exp(β0)·D^β1·(H^β2)·CF with CF = exp(σ²/2) printed in Table 5 and applied here. D in cm, H in m, output kg (units not restated beside Table 5; stated in Table 1 for D, H, AGB). For RIM models the parameters printed are those retained for the Șinca site."},{"id":"dutca-2020-beech-rim4-d","source":"dutca-2020","name":"European beech AGB, RIM, Dataset #4, D only","output":{"quantity":"agb"},"expression":"1.0143 * exp(-2.1625 + 2.4368 * ln(D))","published":{"expression":"1.0143 * exp(-2.1625 + 2.4368 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Fagus sylvatica","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["RO"],"place":"Șinca virgin forest, Romania","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":151,"dbh_min_cm":5.2,"dbh_max_cm":62.1,"rse":0.1683,"cf":1.0143,"method":"random intercept mixed model on log-log data (generic plus site-specific trees); estimates for the Șinca site"},"evidence":[{"field":"expression","quote":"ln(D): β0 = -2.1625, β1 = 2.4368, RSE = 0.1683, CF = 1.0143","locator":"Table 5, European beech, RIM, Dataset #4, ln(D) (Equation 2; back-transformed as Equation 4)"},{"field":"fit.dbh_min_cm","quote":"D range (cm) 5.2–62.1","locator":"Table 4, Dataset #4, European beech"},{"field":"fit.n_trees","quote":"151 (i.e., 144 + 7) / 109 (i.e., 102 + 7)","locator":"Table 4, sample size"}],"check":[{"inputs":{"D":20},"expected":172.7247,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":50},"expected":1610.8486,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Fit on Dataset #4 (generic + reduced site sample of 7 trees). Whole-tree dry AGB including foliage (stem and branches with leaves/needles weighed and dried). Equation form AGB = exp(β0)·D^β1·(H^β2)·CF with CF = exp(σ²/2) printed in Table 5 and applied here. D in cm, H in m, output kg (units not restated beside Table 5; stated in Table 1 for D, H, AGB). For RIM models the parameters printed are those retained for the Șinca site. Fit ranges are those of Dataset #4 (Table 4: generic trees plus the 7 smallest site trees)."},{"id":"dutca-2020-beech-rim4-dh","source":"dutca-2020","name":"European beech AGB, RIM, Dataset #4, D and H","output":{"quantity":"agb"},"expression":"1.0109 * exp(-2.9793 + 2.1191 * ln(D) + 0.6512 * ln(H))","published":{"expression":"1.0109 * exp(-2.9793 + 2.1191 * ln(D) + 0.6512 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Fagus sylvatica","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["RO"],"place":"Șinca virgin forest, Romania","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":151,"dbh_min_cm":5.2,"dbh_max_cm":62.1,"h_min_m":6.2,"h_max_m":33,"rse":0.1474,"cf":1.0109,"method":"random intercept mixed model on log-log data (generic plus site-specific trees); estimates for the Șinca site"},"evidence":[{"field":"expression","quote":"ln(D),ln(H): β0 = -2.9793, β1 = 2.1191, β2 = 0.6512, RSE = 0.1474, CF = 1.0109","locator":"Table 5, European beech, RIM, Dataset #4, ln(D),ln(H) (Equation 3; back-transformed as Equation 5)"},{"field":"fit.dbh_min_cm","quote":"D range (cm) 5.2–62.1","locator":"Table 4, Dataset #4, European beech"},{"field":"fit.h_min_m","quote":"H range (m) 6.2–33.0","locator":"Table 4, Dataset #4, European beech"},{"field":"fit.n_trees","quote":"151 (i.e., 144 + 7) / 109 (i.e., 102 + 7)","locator":"Table 4, sample size"}],"check":[{"inputs":{"D":20,"H":16},"expected":178.6283,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":50,"H":30},"expected":1875.0089,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Fit on Dataset #4 (generic + reduced site sample of 7 trees). Whole-tree dry AGB including foliage (stem and branches with leaves/needles weighed and dried). Equation form AGB = exp(β0)·D^β1·(H^β2)·CF with CF = exp(σ²/2) printed in Table 5 and applied here. D in cm, H in m, output kg (units not restated beside Table 5; stated in Table 1 for D, H, AGB). For RIM models the parameters printed are those retained for the Șinca site. Fit ranges are those of Dataset #4 (Table 4: generic trees plus the 7 smallest site trees)."},{"id":"dutca-2020-fir-bay1-d","source":"dutca-2020","name":"Silver fir AGB, Bayesian, Dataset #1, D only","output":{"quantity":"agb"},"expression":"1.0818 * exp(-2.3284 + 2.3859 * ln(D))","published":{"expression":"1.0818 * exp(-2.3284 + 2.3859 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Abies alba","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["RO"],"place":"Șinca virgin forest, Romania","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":14,"dbh_min_cm":6.3,"dbh_max_cm":92.6,"rse":0.3965,"cf":1.0818,"method":"Bayesian log-log model with informative priors from the generic sample"},"evidence":[{"field":"expression","quote":"ln(D): β0 = -2.3284, β1 = 2.3859, RSE = 0.3965, CF = 1.0818","locator":"Table 5, silver fir, Bayesian, Dataset #1, ln(D) (Equation 2; back-transformed as Equation 4)"},{"field":"fit.n_trees","quote":"15 European beech and 14 silver fir trees","locator":"Section 2.1.2, p. 3"}],"check":[{"inputs":{"D":20},"expected":133.9872,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":50},"expected":1192.6369,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Fit on Dataset #1 (full site sample, Bayesian priors from generic data). Whole-tree dry AGB including foliage (stem and branches with leaves/needles weighed and dried). Equation form AGB = exp(β0)·D^β1·(H^β2)·CF with CF = exp(σ²/2) printed in Table 5 and applied here. D in cm, H in m, output kg (units not restated beside Table 5; stated in Table 1 for D, H, AGB)."},{"id":"dutca-2020-fir-bay1-dh","source":"dutca-2020","name":"Silver fir AGB, Bayesian, Dataset #1, D and H","output":{"quantity":"agb"},"expression":"1.0396 * exp(-2.7679 + 1.9264 * ln(D) + 0.6847 * ln(H))","published":{"expression":"1.0396 * exp(-2.7679 + 1.9264 * ln(D) + 0.6847 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Abies alba","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["RO"],"place":"Șinca virgin forest, Romania","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":14,"dbh_min_cm":6.3,"dbh_max_cm":92.6,"h_min_m":3.5,"h_max_m":43.5,"rse":0.2788,"cf":1.0396,"method":"Bayesian log-log model with informative priors from the generic sample"},"evidence":[{"field":"expression","quote":"ln(D),ln(H): β0 = -2.7679, β1 = 1.9264, β2 = 0.6847, RSE = 0.2788, CF = 1.0396","locator":"Table 5, silver fir, Bayesian, Dataset #1, ln(D),ln(H) (Equation 3; back-transformed as Equation 5)"},{"field":"fit.n_trees","quote":"15 European beech and 14 silver fir trees","locator":"Section 2.1.2, p. 3"}],"check":[{"inputs":{"D":20,"H":16},"expected":139.8131,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":50,"H":30},"expected":1256.2131,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Fit on Dataset #1 (full site sample, Bayesian priors from generic data). Whole-tree dry AGB including foliage (stem and branches with leaves/needles weighed and dried). Equation form AGB = exp(β0)·D^β1·(H^β2)·CF with CF = exp(σ²/2) printed in Table 5 and applied here. D in cm, H in m, output kg (units not restated beside Table 5; stated in Table 1 for D, H, AGB)."},{"id":"dutca-2020-fir-bay2-d","source":"dutca-2020","name":"Silver fir AGB, Bayesian, Dataset #2, D only","output":{"quantity":"agb"},"expression":"1.0861 * exp(-2.3553 + 2.3316 * ln(D))","published":{"expression":"1.0861 * exp(-2.3553 + 2.3316 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Abies alba","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["RO"],"place":"Șinca virgin forest, Romania","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":7,"dbh_min_cm":6.3,"dbh_max_cm":27.9,"rse":0.4064,"cf":1.0861,"method":"Bayesian log-log model with informative priors from the generic sample"},"evidence":[{"field":"expression","quote":"ln(D): β0 = -2.3553, β1 = 2.3316, RSE = 0.4064, CF = 1.0861","locator":"Table 5, silver fir, Bayesian, Dataset #2, ln(D) (Equation 2; back-transformed as Equation 4)"},{"field":"fit.n_trees","quote":"smallest 7 trees for each of the two species","locator":"Section 2.1.2 (Dataset #2), p. 4"}],"check":[{"inputs":{"D":15},"expected":56.905,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25},"expected":187.2462,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Fit on Dataset #2 (reduced site sample of 7 trees, Bayesian priors from generic data). Whole-tree dry AGB including foliage (stem and branches with leaves/needles weighed and dried). Equation form AGB = exp(β0)·D^β1·(H^β2)·CF with CF = exp(σ²/2) printed in Table 5 and applied here. D in cm, H in m, output kg (units not restated beside Table 5; stated in Table 1 for D, H, AGB)."},{"id":"dutca-2020-fir-bay2-dh","source":"dutca-2020","name":"Silver fir AGB, Bayesian, Dataset #2, D and H","output":{"quantity":"agb"},"expression":"1.0523 * exp(-2.6917 + 1.9063 * ln(D) + 0.6305 * ln(H))","published":{"expression":"1.0523 * exp(-2.6917 + 1.9063 * ln(D) + 0.6305 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Abies alba","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["RO"],"place":"Șinca virgin forest, Romania","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":7,"dbh_min_cm":6.3,"dbh_max_cm":27.9,"h_min_m":3.5,"h_max_m":19.8,"rse":0.3192,"cf":1.0523,"method":"Bayesian log-log model with informative priors from the generic sample"},"evidence":[{"field":"expression","quote":"ln(D),ln(H): β0 = -2.6917, β1 = 1.9063, β2 = 0.6305, RSE = 0.3192, CF = 1.0523","locator":"Table 5, silver fir, Bayesian, Dataset #2, ln(D),ln(H) (Equation 3; back-transformed as Equation 5)"},{"field":"fit.n_trees","quote":"smallest 7 trees for each of the two species","locator":"Section 2.1.2 (Dataset #2), p. 4"}],"check":[{"inputs":{"D":15,"H":12},"expected":59.6425,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25,"H":18},"expected":203.9349,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Fit on Dataset #2 (reduced site sample of 7 trees, Bayesian priors from generic data). Whole-tree dry AGB including foliage (stem and branches with leaves/needles weighed and dried). Equation form AGB = exp(β0)·D^β1·(H^β2)·CF with CF = exp(σ²/2) printed in Table 5 and applied here. D in cm, H in m, output kg (units not restated beside Table 5; stated in Table 1 for D, H, AGB)."},{"id":"dutca-2020-fir-lm1-d","source":"dutca-2020","name":"Silver fir AGB, LM, Dataset #1, D only","output":{"quantity":"agb"},"expression":"1.0449 * exp(-3.4141 + 2.6997 * ln(D))","published":{"expression":"1.0449 * exp(-3.4141 + 2.6997 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Abies alba","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["RO"],"place":"Șinca virgin forest, Romania","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":14,"dbh_min_cm":6.3,"dbh_max_cm":92.6,"rse":0.2965,"cf":1.0449,"method":"linear regression on log-transformed data (site-specific sample)"},"evidence":[{"field":"expression","quote":"ln(D): β0 = -3.4141, β1 = 2.6997, RSE = 0.2965, CF = 1.0449","locator":"Table 5, silver fir, LM, Dataset #1, ln(D) (Equation 2; back-transformed as Equation 4)"},{"field":"fit.n_trees","quote":"15 European beech and 14 silver fir trees","locator":"Section 2.1.2, p. 3"}],"check":[{"inputs":{"D":20},"expected":111.8769,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":50},"expected":1327.5756,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Fit on Dataset #1 (15 beech, 14 fir site trees). Whole-tree dry AGB including foliage (stem and branches with leaves/needles weighed and dried). Equation form AGB = exp(β0)·D^β1·(H^β2)·CF with CF = exp(σ²/2) printed in Table 5 and applied here. D in cm, H in m, output kg (units not restated beside Table 5; stated in Table 1 for D, H, AGB)."},{"id":"dutca-2020-fir-lm1-dh","source":"dutca-2020","name":"Silver fir AGB, LM, Dataset #1, D and H","output":{"quantity":"agb"},"expression":"1.0278 * exp(-2.9687 + 1.3301 * ln(D) + 1.446 * ln(H))","published":{"expression":"1.0278 * exp(-2.9687 + 1.3301 * ln(D) + 1.446 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Abies alba","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["RO"],"place":"Șinca virgin forest, Romania","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":14,"dbh_min_cm":6.3,"dbh_max_cm":92.6,"h_min_m":3.5,"h_max_m":43.5,"rse":0.2344,"cf":1.0278,"method":"linear regression on log-transformed data (site-specific sample)"},"evidence":[{"field":"expression","quote":"ln(D),ln(H): β0 = -2.9687, β1 = 1.3301, β2 = 1.446, RSE = 0.2344, CF = 1.0278","locator":"Table 5, silver fir, LM, Dataset #1, ln(D),ln(H) (Equation 3; back-transformed as Equation 5)"},{"field":"fit.n_trees","quote":"15 European beech and 14 silver fir trees","locator":"Section 2.1.2, p. 3"}],"check":[{"inputs":{"D":20,"H":16},"expected":156.4142,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":50,"H":30},"expected":1313.2153,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Fit on Dataset #1 (15 beech, 14 fir site trees). Whole-tree dry AGB including foliage (stem and branches with leaves/needles weighed and dried). Equation form AGB = exp(β0)·D^β1·(H^β2)·CF with CF = exp(σ²/2) printed in Table 5 and applied here. D in cm, H in m, output kg (units not restated beside Table 5; stated in Table 1 for D, H, AGB)."},{"id":"dutca-2020-fir-rim3-d","source":"dutca-2020","name":"Silver fir AGB, RIM, Dataset #3, D only","output":{"quantity":"agb"},"expression":"1.0209 * exp(-2.4756 + 2.4219 * ln(D))","published":{"expression":"1.0209 * exp(-2.4756 + 2.4219 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Abies alba","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["RO"],"place":"Șinca virgin forest, Romania","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":116,"dbh_min_cm":5.1,"dbh_max_cm":92.6,"rse":0.2033,"cf":1.0209,"method":"random intercept mixed model on log-log data (generic plus site-specific trees); estimates for the Șinca site"},"evidence":[{"field":"expression","quote":"ln(D): β0 = -2.4756, β1 = 2.4219, RSE = 0.2033, CF = 1.0209","locator":"Table 5, silver fir, RIM, Dataset #3, ln(D) (Equation 2; back-transformed as Equation 4)"},{"field":"fit.n_trees","quote":"159 / 116","locator":"Table 3, Dataset #3 sample size"}],"check":[{"inputs":{"D":20},"expected":121.5649,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":50},"expected":1118.3539,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Fit on Dataset #3 (generic + full site sample). Whole-tree dry AGB including foliage (stem and branches with leaves/needles weighed and dried). Equation form AGB = exp(β0)·D^β1·(H^β2)·CF with CF = exp(σ²/2) printed in Table 5 and applied here. D in cm, H in m, output kg (units not restated beside Table 5; stated in Table 1 for D, H, AGB). For RIM models the parameters printed are those retained for the Șinca site."},{"id":"dutca-2020-fir-rim3-dh","source":"dutca-2020","name":"Silver fir AGB, RIM, Dataset #3, D and H","output":{"quantity":"agb"},"expression":"1.0133 * exp(-2.8079 + 1.7737 * ln(D) + 0.8745 * ln(H))","published":{"expression":"1.0133 * exp(-2.8079 + 1.7737 * ln(D) + 0.8745 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Abies alba","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["RO"],"place":"Șinca virgin forest, Romania","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":116,"dbh_min_cm":5.1,"dbh_max_cm":92.6,"h_min_m":3.5,"h_max_m":43.5,"rse":0.1624,"cf":1.0133,"method":"random intercept mixed model on log-log data (generic plus site-specific trees); estimates for the Șinca site"},"evidence":[{"field":"expression","quote":"ln(D),ln(H): β0 = -2.8079, β1 = 1.7737, β2 = 0.8745, RSE = 0.1624, CF = 1.0133","locator":"Table 5, silver fir, RIM, Dataset #3, ln(D),ln(H) (Equation 3; back-transformed as Equation 5)"},{"field":"fit.n_trees","quote":"159 / 116","locator":"Table 3, Dataset #3 sample size"}],"check":[{"inputs":{"D":20,"H":16},"expected":140.2563,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":50,"H":30},"expected":1234.4918,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Fit on Dataset #3 (generic + full site sample). Whole-tree dry AGB including foliage (stem and branches with leaves/needles weighed and dried). Equation form AGB = exp(β0)·D^β1·(H^β2)·CF with CF = exp(σ²/2) printed in Table 5 and applied here. D in cm, H in m, output kg (units not restated beside Table 5; stated in Table 1 for D, H, AGB). For RIM models the parameters printed are those retained for the Șinca site."},{"id":"dutca-2020-fir-rim4-d","source":"dutca-2020","name":"Silver fir AGB, RIM, Dataset #4, D only","output":{"quantity":"agb"},"expression":"1.0168 * exp(-2.5086 + 2.3561 * ln(D))","published":{"expression":"1.0168 * exp(-2.5086 + 2.3561 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Abies alba","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["RO"],"place":"Șinca virgin forest, Romania","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":109,"dbh_min_cm":5.1,"dbh_max_cm":64,"rse":0.1824,"cf":1.0168,"method":"random intercept mixed model on log-log data (generic plus site-specific trees); estimates for the Șinca site"},"evidence":[{"field":"expression","quote":"ln(D): β0 = -2.5086, β1 = 2.3561, RSE = 0.1824, CF = 1.0168","locator":"Table 5, silver fir, RIM, Dataset #4, ln(D) (Equation 2; back-transformed as Equation 4)"},{"field":"fit.dbh_min_cm","quote":"D range (cm) 5.1–64.0","locator":"Table 4, Dataset #4, silver fir"},{"field":"fit.n_trees","quote":"151 (i.e., 144 + 7) / 109 (i.e., 102 + 7)","locator":"Table 4, sample size"}],"check":[{"inputs":{"D":20},"expected":96.1881,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":50},"expected":833.1201,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Fit on Dataset #4 (generic + reduced site sample of 7 trees). Whole-tree dry AGB including foliage (stem and branches with leaves/needles weighed and dried). Equation form AGB = exp(β0)·D^β1·(H^β2)·CF with CF = exp(σ²/2) printed in Table 5 and applied here. D in cm, H in m, output kg (units not restated beside Table 5; stated in Table 1 for D, H, AGB). For RIM models the parameters printed are those retained for the Șinca site. Fit ranges are those of Dataset #4 (Table 4: generic trees plus the 7 smallest site trees)."},{"id":"dutca-2020-fir-rim4-dh","source":"dutca-2020","name":"Silver fir AGB, RIM, Dataset #4, D and H","output":{"quantity":"agb"},"expression":"1.0121 * exp(-2.7987 + 1.8076 * ln(D) + 0.804 * ln(H))","published":{"expression":"1.0121 * exp(-2.7987 + 1.8076 * ln(D) + 0.804 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Abies alba","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["RO"],"place":"Șinca virgin forest, Romania","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":109,"dbh_min_cm":5.1,"dbh_max_cm":64,"h_min_m":3.5,"h_max_m":28.9,"rse":0.1548,"cf":1.0121,"method":"random intercept mixed model on log-log data (generic plus site-specific trees); estimates for the Șinca site"},"evidence":[{"field":"expression","quote":"ln(D),ln(H): β0 = -2.7987, β1 = 1.8076, β2 = 0.804, RSE = 0.1548, CF = 1.0121","locator":"Table 5, silver fir, RIM, Dataset #4, ln(D),ln(H) (Equation 3; back-transformed as Equation 5)"},{"field":"fit.dbh_min_cm","quote":"D range (cm) 5.1–64.0","locator":"Table 4, Dataset #4, silver fir"},{"field":"fit.h_min_m","quote":"H range (m) 3.5–28.9","locator":"Table 4, Dataset #4, silver fir"},{"field":"fit.n_trees","quote":"151 (i.e., 144 + 7) / 109 (i.e., 102 + 7)","locator":"Table 4, sample size"}],"check":[{"inputs":{"D":20,"H":16},"expected":128.7116,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":50,"H":30},"expected":1117.9622,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Fit on Dataset #4 (generic + reduced site sample of 7 trees). Whole-tree dry AGB including foliage (stem and branches with leaves/needles weighed and dried). Equation form AGB = exp(β0)·D^β1·(H^β2)·CF with CF = exp(σ²/2) printed in Table 5 and applied here. D in cm, H in m, output kg (units not restated beside Table 5; stated in Table 1 for D, H, AGB). For RIM models the parameters printed are those retained for the Șinca site. Fit ranges are those of Dataset #4 (Table 4: generic trees plus the 7 smallest site trees)."},{"id":"farias-2019-m5","source":"farias-2019","name":"Longleaf pine above-stump biomass, model 5 (H + ln(H.DBH))","output":{"quantity":"agb"},"expression":"exp(-1.8702 + 0.1114 * H + 0.5818 * ln(H * D))","published":{"expression":"exp(-1.8702 + 0.1114 * H + 0.5818 * ln(H * DBH))","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus palustris","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["US"],"place":"Fort Benning, Camp Lejeune and Polk County, southeastern United States","biomes":["temperate","subtropical"]},"stand":"mixed","fit":{"n_trees":100,"dbh_min_cm":0.81,"dbh_max_cm":54.3,"h_min_m":0.55,"h_max_m":30.4,"r2":0.9767,"rse":0.3783,"method":"ordinary least squares on ln(W)"},"evidence":[{"field":"expression","quote":"5th: ln (W ) = − 1.8702 + 0.1114. (H) + 0.5818.ln ( H .DBH )","locator":"Table 4"},{"field":"fit.n_trees","quote":"The dataset consisted of measures of 100 longleaf pine trees, obtained from three different sites","locator":"Section 2"},{"field":"fit.dbh_max_cm","quote":"DBH cm 16.0 13.7 0.81 54.3","locator":"Table 1 (mean, SD, min, max)"},{"field":"fit.h_max_m","quote":"H m 11.5 7.7 0.55 30.4","locator":"Table 1 (mean, SD, min, max)"},{"field":"fit.r2","quote":"5 0.3783 0.9767","locator":"Table 2, model 5 (Sy.x, adjusted R2)"}],"check":[{"inputs":{"D":10,"H":8},"expected":4.8089,"origin":"computed","note":"hand-computed from the Table 4 coefficients"},{"inputs":{"D":30,"H":20},"expected":59.1179,"origin":"computed","note":"hand-computed from the Table 4 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"W is total above-stump biomass (kg); the paper does not say which components are included. Natural log; no back-transformation correction factor is stated, so none is applied. r2 is the adjusted R2 and rse is Sy.x as printed in Table 2. ln(H.DBH) is read as ln of the product H x DBH. The paper also prints stand-level models (Eqs. 15 and 16, needing basal area, trees per hectare and quadratic diameter), which are not captured because those inputs are not canonical variables."},{"id":"farias-2019-m9","source":"farias-2019","name":"Longleaf pine above-stump biomass, model 9 (DBH + ln(H.DBH))","output":{"quantity":"agb"},"expression":"exp(-1.7709 + 0.0544 * D + 0.6273 * ln(H * D))","published":{"expression":"exp(-1.7709 + 0.0544 * DBH + 0.6273 * ln(H * DBH))","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus palustris","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["US"],"place":"Fort Benning, Camp Lejeune and Polk County, southeastern United States","biomes":["temperate","subtropical"]},"stand":"mixed","fit":{"n_trees":100,"dbh_min_cm":0.81,"dbh_max_cm":54.3,"h_min_m":0.55,"h_max_m":30.4,"r2":0.9784,"rse":0.3641,"method":"ordinary least squares on ln(W)"},"evidence":[{"field":"expression","quote":"9th: ln (W ) = − 1.7709 + 0.0544. ( DBH ) + 0.6273.ln ( H .DBH )","locator":"Table 4"},{"field":"fit.n_trees","quote":"The dataset consisted of measures of 100 longleaf pine trees, obtained from three different sites","locator":"Section 2"},{"field":"fit.dbh_max_cm","quote":"DBH cm 16.0 13.7 0.81 54.3","locator":"Table 1 (mean, SD, min, max)"},{"field":"fit.h_max_m","quote":"H m 11.5 7.7 0.55 30.4","locator":"Table 1 (mean, SD, min, max)"},{"field":"fit.r2","quote":"9 0.3641 0.9784","locator":"Table 2, model 9 (Sy.x, adjusted R2)"}],"check":[{"inputs":{"D":10,"H":8},"expected":4.5811,"origin":"computed","note":"hand-computed from the Table 4 coefficients"},{"inputs":{"D":30,"H":20},"expected":48.1294,"origin":"computed","note":"hand-computed from the Table 4 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"W is total above-stump biomass (kg); the paper does not say which components are included. Natural log; no back-transformation correction factor is stated, so none is applied. r2 is the adjusted R2 and rse is Sy.x as printed in Table 2. ln(H.DBH) is read as ln of the product H x DBH. The paper also prints stand-level models (Eqs. 15 and 16, needing basal area, trees per hectare and quadratic diameter), which are not captured because those inputs are not canonical variables."},{"id":"feldpausch-2012-weibull-africa","source":"feldpausch-2012","name":"Africa Weibull height–diameter model","output":{"quantity":"height"},"expression":"50.096 * (1 - exp(-0.03711 * D^0.8291))","published":{"expression":"50.096 * (1 - exp(-0.03711 * D^0.8291))","units":{"D":"cm"},"output_unit":"m"},"taxon":{"level":"mixed","name":"Tropical forest trees (permanent plots)","group":"mixed"},"region":{"scope":"continental","countries":[],"place":"Africa (C., E. and W. Africa plots)","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":11910,"dbh_min_cm":10,"method":"nonlinear Weibull H:D fit"},"evidence":[{"field":"expression","quote":"H = a(1 − exp(−bD^c))","locator":"Eq. 5, p. 3387"},{"field":"published.units","quote":"Coefficients for Weibull-H region-, continent-specific and pantropical models (H = a(1−exp(−bD^c))) to estimate tree height (H, m) from diameter (D, cm) ≥ 10 cm in pantropical forests","locator":"Table 3 caption, p. 3393"},{"field":"fit.n_trees","quote":"Africa 50.096 0.03711 0.8291 5.739 75 422 11 910","locator":"Table 3 (columns a, b, c, RSE, AIC, n), p. 3393"}],"check":[{"inputs":{"D":30},"expected":23.22,"origin":"computed","note":"computed with python3 from the published form"},{"inputs":{"D":80},"expected":37.79,"origin":"computed","note":"computed with python3 from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Weibull height–diameter model; RSE 5.739 m (on the height scale, not log scale, so not stored in fit.rse). Fitted on concurrent H and D measurements in permanent plots, trees ≥ 10 cm D; the paper gives no maximum D for this fit. Table 3 footnote: models adapted from the pantropical H:D database of Feldpausch et al. (2011)."},{"id":"feldpausch-2012-weibull-pantropical","source":"feldpausch-2012","name":"Pantropical Weibull height–diameter model","output":{"quantity":"height"},"expression":"50.874 * (1 - exp(-0.042 * D^0.784))","published":{"expression":"50.874 * (1 - exp(-0.042 * D^0.784))","units":{"D":"cm"},"output_unit":"m"},"taxon":{"level":"mixed","name":"Tropical forest trees (permanent plots)","group":"mixed"},"region":{"scope":"pantropical","countries":[],"place":"Permanent plots in Africa, Asia, Australia and South America","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":42656,"dbh_min_cm":10,"method":"nonlinear Weibull H:D fit"},"evidence":[{"field":"expression","quote":"H = a(1 − exp(−bD^c))","locator":"Eq. 5, p. 3387"},{"field":"published.units","quote":"Coefficients for Weibull-H region-, continent-specific and pantropical models (H = a(1−exp(−bD^c))) to estimate tree height (H, m) from diameter (D, cm) ≥ 10 cm in pantropical forests","locator":"Table 3 caption, p. 3393"},{"field":"fit.n_trees","quote":"Pantropical 50.874 0.0420 0.784 5.479 266 169 42656","locator":"Table 3 (columns a, b, c, RSE, AIC, n), p. 3393"}],"check":[{"inputs":{"D":30},"expected":23.08,"origin":"computed","note":"computed with python3 from the published form"},{"inputs":{"D":80},"expected":37.06,"origin":"computed","note":"computed with python3 from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Weibull height–diameter model; RSE 5.479 m (on the height scale, not log scale, so not stored in fit.rse). Fitted on concurrent H and D measurements in permanent plots, trees ≥ 10 cm D; the paper gives no maximum D for this fit. Table 3 footnote: models adapted from the pantropical H:D database of Feldpausch et al. (2011)."},{"id":"feldpausch-2012-weibull-se-asia","source":"feldpausch-2012","name":"South-East Asia Weibull height–diameter model","output":{"quantity":"height"},"expression":"57.122 * (1 - exp(-0.0332 * D^0.8468))","published":{"expression":"57.122 * (1 - exp(-0.0332 * D^0.8468))","units":{"D":"cm"},"output_unit":"m"},"taxon":{"level":"mixed","name":"Tropical forest trees (permanent plots)","group":"mixed"},"region":{"scope":"continental","countries":[],"place":"Asia: South-East Asia plots","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":2948,"dbh_min_cm":10,"method":"nonlinear Weibull H:D fit"},"evidence":[{"field":"expression","quote":"H = a(1 − exp(−bD^c))","locator":"Eq. 5, p. 3387"},{"field":"published.units","quote":"Coefficients for Weibull-H region-, continent-specific and pantropical models (H = a(1−exp(−bD^c))) to estimate tree height (H, m) from diameter (D, cm) ≥ 10 cm in pantropical forests","locator":"Table 3 caption, p. 3393"},{"field":"fit.n_trees","quote":"Asia S. E. Asia 57.122 0.0332 0.8468 5.691 18 623 2948","locator":"Table 3 (columns a, b, c, RSE, AIC, n), p. 3393"}],"check":[{"inputs":{"D":30},"expected":25.51,"origin":"computed","note":"computed with python3 from the published form"},{"inputs":{"D":80},"expected":42.42,"origin":"computed","note":"computed with python3 from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Weibull height–diameter model; RSE 5.691 m (on the height scale, not log scale, so not stored in fit.rse). Fitted on concurrent H and D measurements in permanent plots, trees ≥ 10 cm D; the paper gives no maximum D for this fit. Table 3 footnote: models adapted from the pantropical H:D database of Feldpausch et al. (2011)."},{"id":"feldpausch-2012-weibull-south-america","source":"feldpausch-2012","name":"South America Weibull height–diameter model","output":{"quantity":"height"},"expression":"42.574 * (1 - exp(-0.0482 * D^0.8307))","published":{"expression":"42.574 * (1 - exp(-0.0482 * D^0.8307))","units":{"D":"cm"},"output_unit":"m"},"taxon":{"level":"mixed","name":"Tropical forest trees (permanent plots)","group":"mixed"},"region":{"scope":"continental","countries":[],"place":"South America (Amazonia and Guiana Shield plots)","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":19262,"dbh_min_cm":10,"method":"nonlinear Weibull H:D fit"},"evidence":[{"field":"expression","quote":"H = a(1 − exp(−bD^c))","locator":"Eq. 5, p. 3387"},{"field":"published.units","quote":"Coefficients for Weibull-H region-, continent-specific and pantropical models (H = a(1−exp(−bD^c))) to estimate tree height (H, m) from diameter (D, cm) ≥ 10 cm in pantropical forests","locator":"Table 3 caption, p. 3393"},{"field":"fit.n_trees","quote":"S. America 42.574 0.0482 0.8307 5.619 121 167 19 262","locator":"Table 3 (columns a, b, c, RSE, AIC, n), p. 3393"}],"check":[{"inputs":{"D":30},"expected":23.69,"origin":"computed","note":"computed with python3 from the published form"},{"inputs":{"D":80},"expected":35.79,"origin":"computed","note":"computed with python3 from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Weibull height–diameter model; RSE 5.619 m (on the height scale, not log scale, so not stored in fit.rse). Fitted on concurrent H and D measurements in permanent plots, trees ≥ 10 cm D; the paper gives no maximum D for this fit. Table 3 footnote: models adapted from the pantropical H:D database of Feldpausch et al. (2011)."},{"id":"flade-2020-trees-d30-nls","source":"flade-2020","name":"Short-stature boreal trees (<=4.5 m), AGB from stem diameter at 0.3 m (NLS)","output":{"quantity":"agb"},"expression":"59.072 * D30^2.479 / 1000","published":{"expression":"59.072 * D30^2.479","units":{"D30":"cm"},"output_unit":"g"},"taxon":{"level":"mixed","name":"Multispecies short-stature trees (Betula papyrifera, Picea spp., Populus balsamifera, Populus tremuloides)","group":"mixed"},"region":{"scope":"regional","countries":["CA"],"place":"Fort Liard area, Taiga Plains, Northwest Territories","biomes":["boreal"]},"stand":"natural","fit":{"h_max_m":4.5,"r2":0.988,"method":"nonlinear least squares power function, y = beta * x^alpha (unweighted)"},"evidence":[{"field":"expression","quote":"Multispecies trees, Diameter at 0.3 m: NLS β 59.072, NLS α 2.479; y = β x^α","locator":"Table 5 and Eq. 7"},{"field":"fit.r2","quote":"NLS, Diameter at 0.3 m, R2 0.988","locator":"Table 4"},{"field":"fit.h_max_m","quote":"Live trees were chosen from the understory and open areas across different height ranges determined in intervals of 0.5 m up to ≤4.5 m","locator":"Section 2.3"}],"check":[{"inputs":{"D30":2},"expected":0.3293,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":5},"expected":3.1925,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":10},"expected":17.7985,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Total aboveground dry biomass (stem, branches, leaves) in grams; canonical form divides by 1000 for kg. Stem diameter measured 0.3 m along the stem from the ground. Paper gives the NLS and LLRC forms; the LLRC correction factor (epsilon = e^(MSE/2)) value is in Supplementary Table S4, which was not read, so LLRC is not added. n_trees omitted: text says 106 trees, Table 1 says 105 tree samples. Shrub volume/basal-diameter models and the cross-sectional-area models, the stem-length model and species-specific models not added (no canonical variable, or coefficients only in the supplement)."},{"id":"flade-2021-bepa-branch-llrc","source":"flade-2021","name":"Betula papyrifera branch biomass, cross-sectional area at 0.3 m (LLRC)","output":{"quantity":"branch_biomass"},"expression":"13.9294 * 1.0542 * (0.785398163397448 * D30^2)^1.144 / 1000","published":{"expression":"13.9294 * 1.0542 * (0.785398163397448 * D30^2)^1.144","units":{"D30":"cm"},"output_unit":"g"},"taxon":{"level":"species","name":"Betula papyrifera","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CA"],"place":"Sporadic to discontinuous permafrost zone, Taiga Plains and Taiga Shield ecozones, northwestern Canada","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":15,"r2":0.9,"cf":1.0542,"method":"linear log regression with correction factor (LLRC), y = β x^α × CF, x = cross-sectional area"},"evidence":[{"field":"expression","quote":"Betula papyrifera Branches LLRC 2.634 13.9294 1.144 1.0542 0.9 (columns: ln(β), β, α, CF, RMSE, R2); y = βx^α + ε (Eq. 2); y = βx^α × ε (Eq. 4), ε = e^(MSE/2) (Eq. 5)","locator":"Table 3, Eqs. 2-5"},{"field":"fit.n_trees","quote":"Betula papyrifera 15","locator":"Table 1, No. of Samples"}],"check":[{"inputs":{"D30":2},"expected":0.0544,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":5},"expected":0.4427,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":8},"expected":1.2975,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper's predictor is cross-sectional area (cm2) of the stem(s) at 0.3 m; converted here to D30 as pi/4 * D30^2 (pi written as 0.785398163397448 * ...), so for multi-stemmed trees D30 is the equivalent diameter of the summed cross-sectional area. Paper output is in g dry mass; canonical form divides by 1000. LLRC correction factor applied as printed in the CF column. Fit range of the predictor is not stated, so none is given."},{"id":"flade-2021-bepa-branch-nls","source":"flade-2021","name":"Betula papyrifera branch biomass, cross-sectional area at 0.3 m (NLS)","output":{"quantity":"branch_biomass"},"expression":"12.7152 * (0.785398163397448 * D30^2)^1.2921 / 1000","published":{"expression":"12.7152 * (0.785398163397448 * D30^2)^1.2921","units":{"D30":"cm"},"output_unit":"g"},"taxon":{"level":"species","name":"Betula papyrifera","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CA"],"place":"Sporadic to discontinuous permafrost zone, Taiga Plains and Taiga Shield ecozones, northwestern Canada","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":15,"r2":0.905,"method":"iterative nonlinear least squares power function, y = β x^α (unweighted), x = cross-sectional area"},"evidence":[{"field":"expression","quote":"Betula papyrifera Branches NLS 12.7152 1.2921 0.905 (columns: β, SE(β), α, SE(α), RMSE, R2); y = βx^α + ε (Eq. 2)","locator":"Table 3, Eqs. 2-5"},{"field":"fit.n_trees","quote":"Betula papyrifera 15","locator":"Table 1, No. of Samples"}],"check":[{"inputs":{"D30":2},"expected":0.0558,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":5},"expected":0.5957,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":8},"expected":2.0069,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper's predictor is cross-sectional area (cm2) of the stem(s) at 0.3 m; converted here to D30 as pi/4 * D30^2 (pi written as 0.785398163397448 * ...), so for multi-stemmed trees D30 is the equivalent diameter of the summed cross-sectional area. Paper output is in g dry mass; canonical form divides by 1000. Fit range of the predictor is not stated, so none is given."},{"id":"flade-2021-bepa-leaf-nls","source":"flade-2021","name":"Betula papyrifera leaf biomass, cross-sectional area at 0.3 m (NLS)","output":{"quantity":"foliage_biomass"},"expression":"7.8627 * (0.785398163397448 * D30^2)^1.2143 / 1000","published":{"expression":"7.8627 * (0.785398163397448 * D30^2)^1.2143","units":{"D30":"cm"},"output_unit":"g"},"taxon":{"level":"species","name":"Betula papyrifera","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CA"],"place":"Sporadic to discontinuous permafrost zone, Taiga Plains and Taiga Shield ecozones, northwestern Canada","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":15,"r2":0.853,"method":"iterative nonlinear least squares power function, y = β x^α (unweighted), x = cross-sectional area"},"evidence":[{"field":"expression","quote":"Betula papyrifera Leaves NLS 7.8627 1.2143 0.853 (columns: β, SE(β), α, SE(α), RMSE, R2); y = βx^α + ε (Eq. 2)","locator":"Table 3, Eqs. 2-5"},{"field":"fit.n_trees","quote":"Betula papyrifera 15","locator":"Table 1, No. of Samples"}],"check":[{"inputs":{"D30":2},"expected":0.0316,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":5},"expected":0.2922,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":8},"expected":0.915,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper's predictor is cross-sectional area (cm2) of the stem(s) at 0.3 m; converted here to D30 as pi/4 * D30^2 (pi written as 0.785398163397448 * ...), so for multi-stemmed trees D30 is the equivalent diameter of the summed cross-sectional area. Paper output is in g dry mass; canonical form divides by 1000. Fit range of the predictor is not stated, so none is given."},{"id":"flade-2021-bepa-stem-llrc","source":"flade-2021","name":"Betula papyrifera stem biomass, cross-sectional area at 0.3 m (LLRC)","output":{"quantity":"stem_biomass"},"expression":"52.9845 * 1.066 * (0.785398163397448 * D30^2)^1.237 / 1000","published":{"expression":"52.9845 * 1.066 * (0.785398163397448 * D30^2)^1.237","units":{"D30":"cm"},"output_unit":"g"},"taxon":{"level":"species","name":"Betula papyrifera","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CA"],"place":"Sporadic to discontinuous permafrost zone, Taiga Plains and Taiga Shield ecozones, northwestern Canada","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":15,"r2":0.898,"cf":1.066,"method":"linear log regression with correction factor (LLRC), y = β x^α × CF, x = cross-sectional area"},"evidence":[{"field":"expression","quote":"Betula papyrifera Stems LLRC 3.970 52.9845 1.237 1.066 0.898 (columns: ln(β), β, α, CF, RMSE, R2); y = βx^α + ε (Eq. 2); y = βx^α × ε (Eq. 4), ε = e^(MSE/2) (Eq. 5)","locator":"Table 3, Eqs. 2-5"},{"field":"fit.n_trees","quote":"Betula papyrifera 15","locator":"Table 1, No. of Samples"}],"check":[{"inputs":{"D30":2},"expected":0.2327,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":5},"expected":2.2459,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":8},"expected":7.1842,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper's predictor is cross-sectional area (cm2) of the stem(s) at 0.3 m; converted here to D30 as pi/4 * D30^2 (pi written as 0.785398163397448 * ...), so for multi-stemmed trees D30 is the equivalent diameter of the summed cross-sectional area. Paper output is in g dry mass; canonical form divides by 1000. LLRC correction factor applied as printed in the CF column. Fit range of the predictor is not stated, so none is given."},{"id":"flade-2021-bepa-stem-nls","source":"flade-2021","name":"Betula papyrifera stem biomass, cross-sectional area at 0.3 m (NLS)","output":{"quantity":"stem_biomass"},"expression":"41.4994 * (0.785398163397448 * D30^2)^1.5494 / 1000","published":{"expression":"41.4994 * (0.785398163397448 * D30^2)^1.5494","units":{"D30":"cm"},"output_unit":"g"},"taxon":{"level":"species","name":"Betula papyrifera","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CA"],"place":"Sporadic to discontinuous permafrost zone, Taiga Plains and Taiga Shield ecozones, northwestern Canada","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":15,"r2":0.913,"method":"iterative nonlinear least squares power function, y = β x^α (unweighted), x = cross-sectional area"},"evidence":[{"field":"expression","quote":"Betula papyrifera Stems NLS 41.4994 1.5494 0.913 (columns: β, SE(β), α, SE(α), RMSE, R2); y = βx^α + ε (Eq. 2)","locator":"Table 3, Eqs. 2-5"},{"field":"fit.n_trees","quote":"Betula papyrifera 15","locator":"Table 1, No. of Samples"}],"check":[{"inputs":{"D30":2},"expected":0.2445,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":5},"expected":4.1828,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":8},"expected":17.9469,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper's predictor is cross-sectional area (cm2) of the stem(s) at 0.3 m; converted here to D30 as pi/4 * D30^2 (pi written as 0.785398163397448 * ...), so for multi-stemmed trees D30 is the equivalent diameter of the summed cross-sectional area. Paper output is in g dry mass; canonical form divides by 1000. Fit range of the predictor is not stated, so none is given."},{"id":"flade-2021-hardwood-branch-llrc","source":"flade-2021","name":"Short-stature hardwood trees branch biomass, cross-sectional area at 0.3 m (LLRC)","output":{"quantity":"branch_biomass"},"expression":"6.8689 * 1.4893 * (0.785398163397448 * D30^2)^1.127 / 1000","published":{"expression":"6.8689 * 1.4893 * (0.785398163397448 * D30^2)^1.127","units":{"D30":"cm"},"output_unit":"g"},"taxon":{"level":"mixed","name":"Short-stature hardwood trees (deciduous species excluding Picea spp.)","group":"broadleaf"},"region":{"scope":"regional","countries":["CA"],"place":"Sporadic to discontinuous permafrost zone, Taiga Plains and Taiga Shield ecozones, northwestern Canada","biomes":["boreal"]},"stand":"natural","fit":{"r2":0.76,"cf":1.4893,"method":"linear log regression with correction factor (LLRC), y = β x^α × CF, x = cross-sectional area"},"evidence":[{"field":"expression","quote":"Short-stature hardwood trees Branches LLRC 1.927 6.8689 1.127 1.4893 0.76 (columns: ln(β), β, α, CF, RMSE, R2); y = βx^α + ε (Eq. 2); y = βx^α × ε (Eq. 4), ε = e^(MSE/2) (Eq. 5)","locator":"Table 3, Eqs. 2-5"}],"check":[{"inputs":{"D30":2},"expected":0.0372,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":5},"expected":0.2932,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":8},"expected":0.8457,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper's predictor is cross-sectional area (cm2) of the stem(s) at 0.3 m; converted here to D30 as pi/4 * D30^2 (pi written as 0.785398163397448 * ...), so for multi-stemmed trees D30 is the equivalent diameter of the summed cross-sectional area. Paper output is in g dry mass; canonical form divides by 1000. LLRC correction factor applied as printed in the CF column. Fit range of the predictor is not stated, so none is given."},{"id":"flade-2021-hardwood-branch-nls","source":"flade-2021","name":"Short-stature hardwood trees branch biomass, cross-sectional area at 0.3 m (NLS)","output":{"quantity":"branch_biomass"},"expression":"6.4825 * (0.785398163397448 * D30^2)^1.5966 / 1000","published":{"expression":"6.4825 * (0.785398163397448 * D30^2)^1.5966","units":{"D30":"cm"},"output_unit":"g"},"taxon":{"level":"mixed","name":"Short-stature hardwood trees (deciduous species excluding Picea spp.)","group":"broadleaf"},"region":{"scope":"regional","countries":["CA"],"place":"Sporadic to discontinuous permafrost zone, Taiga Plains and Taiga Shield ecozones, northwestern Canada","biomes":["boreal"]},"stand":"natural","fit":{"r2":0.789,"method":"iterative nonlinear least squares power function, y = β x^α (unweighted), x = cross-sectional area"},"evidence":[{"field":"expression","quote":"Short-stature hardwood trees Branches NLS 6.4825 1.5966 0.789 (columns: β, SE(β), α, SE(α), RMSE, R2); y = βx^α + ε (Eq. 2)","locator":"Table 3, Eqs. 2-5"}],"check":[{"inputs":{"D30":2},"expected":0.0403,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":5},"expected":0.752,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":8},"expected":3.3728,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper's predictor is cross-sectional area (cm2) of the stem(s) at 0.3 m; converted here to D30 as pi/4 * D30^2 (pi written as 0.785398163397448 * ...), so for multi-stemmed trees D30 is the equivalent diameter of the summed cross-sectional area. Paper output is in g dry mass; canonical form divides by 1000. Fit range of the predictor is not stated, so none is given."},{"id":"flade-2021-hardwood-leaf-llrc","source":"flade-2021","name":"Short-stature hardwood trees leaf biomass, cross-sectional area at 0.3 m (LLRC)","output":{"quantity":"foliage_biomass"},"expression":"8.4825 * 1.2434 * (0.785398163397448 * D30^2)^0.9655 / 1000","published":{"expression":"8.4825 * 1.2434 * (0.785398163397448 * D30^2)^0.9655","units":{"D30":"cm"},"output_unit":"g"},"taxon":{"level":"mixed","name":"Short-stature hardwood trees (deciduous species excluding Picea spp.)","group":"broadleaf"},"region":{"scope":"regional","countries":["CA"],"place":"Sporadic to discontinuous permafrost zone, Taiga Plains and Taiga Shield ecozones, northwestern Canada","biomes":["boreal"]},"stand":"natural","fit":{"r2":0.826,"cf":1.2434,"method":"linear log regression with correction factor (LLRC), y = β x^α × CF, x = cross-sectional area"},"evidence":[{"field":"expression","quote":"Short-stature hardwood trees Leaves LLRC 2.138 8.4825 0.9655 1.2434 0.826 (columns: ln(β), β, α, CF, RMSE, R2); y = βx^α + ε (Eq. 2); y = βx^α × ε (Eq. 4), ε = e^(MSE/2) (Eq. 5)","locator":"Table 3, Eqs. 2-5"}],"check":[{"inputs":{"D30":2},"expected":0.0319,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":5},"expected":0.1869,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":8},"expected":0.4631,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper's predictor is cross-sectional area (cm2) of the stem(s) at 0.3 m; converted here to D30 as pi/4 * D30^2 (pi written as 0.785398163397448 * ...), so for multi-stemmed trees D30 is the equivalent diameter of the summed cross-sectional area. Paper output is in g dry mass; canonical form divides by 1000. LLRC correction factor applied as printed in the CF column. Fit range of the predictor is not stated, so none is given."},{"id":"flade-2021-hardwood-leaf-nls","source":"flade-2021","name":"Short-stature hardwood trees leaf biomass, cross-sectional area at 0.3 m (NLS)","output":{"quantity":"foliage_biomass"},"expression":"8.28683 * (0.785398163397448 * D30^2)^1.2225 / 1000","published":{"expression":"8.28683 * (0.785398163397448 * D30^2)^1.2225","units":{"D30":"cm"},"output_unit":"g"},"taxon":{"level":"mixed","name":"Short-stature hardwood trees (deciduous species excluding Picea spp.)","group":"broadleaf"},"region":{"scope":"regional","countries":["CA"],"place":"Sporadic to discontinuous permafrost zone, Taiga Plains and Taiga Shield ecozones, northwestern Canada","biomes":["boreal"]},"stand":"natural","fit":{"r2":0.841,"method":"iterative nonlinear least squares power function, y = β x^α (unweighted), x = cross-sectional area"},"evidence":[{"field":"expression","quote":"Short-stature hardwood trees Leaves NLS 8.28683 1.2225 0.841 (columns: β, SE(β), α, SE(α), RMSE, R2); y = βx^α + ε (Eq. 2)","locator":"Table 3, Eqs. 2-5"}],"check":[{"inputs":{"D30":2},"expected":0.0336,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":5},"expected":0.3156,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":8},"expected":0.9958,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper's predictor is cross-sectional area (cm2) of the stem(s) at 0.3 m; converted here to D30 as pi/4 * D30^2 (pi written as 0.785398163397448 * ...), so for multi-stemmed trees D30 is the equivalent diameter of the summed cross-sectional area. Paper output is in g dry mass; canonical form divides by 1000. Fit range of the predictor is not stated, so none is given."},{"id":"flade-2021-hardwood-stem-llrc","source":"flade-2021","name":"Short-stature hardwood trees stem biomass, cross-sectional area at 0.3 m (LLRC)","output":{"quantity":"stem_biomass"},"expression":"46.0625 * 1.1482 * (0.785398163397448 * D30^2)^1.122 / 1000","published":{"expression":"46.0625 * 1.1482 * (0.785398163397448 * D30^2)^1.122","units":{"D30":"cm"},"output_unit":"g"},"taxon":{"level":"mixed","name":"Short-stature hardwood trees (deciduous species excluding Picea spp.)","group":"broadleaf"},"region":{"scope":"regional","countries":["CA"],"place":"Sporadic to discontinuous permafrost zone, Taiga Plains and Taiga Shield ecozones, northwestern Canada","biomes":["boreal"]},"stand":"natural","fit":{"r2":0.887,"cf":1.1482,"method":"linear log regression with correction factor (LLRC), y = β x^α × CF, x = cross-sectional area"},"evidence":[{"field":"expression","quote":"Short-stature hardwood trees Stems LLRC 3.830 46.0625 1.122 1.1482 0.887 (columns: ln(β), β, α, CF, RMSE, R2); y = βx^α + ε (Eq. 2); y = βx^α × ε (Eq. 4), ε = e^(MSE/2) (Eq. 5)","locator":"Table 3, Eqs. 2-5"}],"check":[{"inputs":{"D30":2},"expected":0.1911,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":5},"expected":1.4933,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":8},"expected":4.2874,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper's predictor is cross-sectional area (cm2) of the stem(s) at 0.3 m; converted here to D30 as pi/4 * D30^2 (pi written as 0.785398163397448 * ...), so for multi-stemmed trees D30 is the equivalent diameter of the summed cross-sectional area. Paper output is in g dry mass; canonical form divides by 1000. LLRC correction factor applied as printed in the CF column. Fit range of the predictor is not stated, so none is given."},{"id":"flade-2021-hardwood-stem-nls","source":"flade-2021","name":"Short-stature hardwood trees stem biomass, cross-sectional area at 0.3 m (NLS)","output":{"quantity":"stem_biomass"},"expression":"41.4212 * (0.785398163397448 * D30^2)^1.4431 / 1000","published":{"expression":"41.4212 * (0.785398163397448 * D30^2)^1.4431","units":{"D30":"cm"},"output_unit":"g"},"taxon":{"level":"mixed","name":"Short-stature hardwood trees (deciduous species excluding Picea spp.)","group":"broadleaf"},"region":{"scope":"regional","countries":["CA"],"place":"Sporadic to discontinuous permafrost zone, Taiga Plains and Taiga Shield ecozones, northwestern Canada","biomes":["boreal"]},"stand":"natural","fit":{"r2":0.904,"method":"iterative nonlinear least squares power function, y = β x^α (unweighted), x = cross-sectional area"},"evidence":[{"field":"expression","quote":"Short-stature hardwood trees Stems NLS 41.4212 1.4431 0.904 (columns: β, SE(β), α, SE(α), RMSE, R2); y = βx^α + ε (Eq. 2)","locator":"Table 3, Eqs. 2-5"}],"check":[{"inputs":{"D30":2},"expected":0.2161,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":5},"expected":3.0422,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":8},"expected":11.812,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper's predictor is cross-sectional area (cm2) of the stem(s) at 0.3 m; converted here to D30 as pi/4 * D30^2 (pi written as 0.785398163397448 * ...), so for multi-stemmed trees D30 is the equivalent diameter of the summed cross-sectional area. Paper output is in g dry mass; canonical form divides by 1000. Fit range of the predictor is not stated, so none is given."},{"id":"flade-2021-multi-branch-llrc","source":"flade-2021","name":"Multi-species short-stature trees branch biomass, cross-sectional area at 0.3 m (LLRC)","output":{"quantity":"branch_biomass"},"expression":"10.3398 * 1.6568 * (0.785398163397448 * D30^2)^1.269 / 1000","published":{"expression":"10.3398 * 1.6568 * (0.785398163397448 * D30^2)^1.269","units":{"D30":"cm"},"output_unit":"g"},"taxon":{"level":"mixed","name":"Multi-species short-stature trees (all tree genera/species sampled)","group":"mixed"},"region":{"scope":"regional","countries":["CA"],"place":"Sporadic to discontinuous permafrost zone, Taiga Plains and Taiga Shield ecozones, northwestern Canada","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":105,"r2":0.919,"cf":1.6568,"method":"linear log regression with correction factor (LLRC), y = β x^α × CF, x = cross-sectional area"},"evidence":[{"field":"expression","quote":"Multi-species short-stature trees Branches LLRC 2.336 10.3398 1.269 1.6568 0.919 (columns: ln(β), β, α, CF, RMSE, R2); y = βx^α + ε (Eq. 2); y = βx^α × ε (Eq. 4), ε = e^(MSE/2) (Eq. 5)","locator":"Table 3, Eqs. 2-5"},{"field":"fit.n_trees","quote":"A total of 206 shrub and 105 tree individuals were measured and destructively sampled at 65 different peatland and forest sites.","locator":"Section 2.2"}],"check":[{"inputs":{"D30":2},"expected":0.0732,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":5},"expected":0.7493,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":8},"expected":2.47,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper's predictor is cross-sectional area (cm2) of the stem(s) at 0.3 m; converted here to D30 as pi/4 * D30^2 (pi written as 0.785398163397448 * ...), so for multi-stemmed trees D30 is the equivalent diameter of the summed cross-sectional area. Paper output is in g dry mass; canonical form divides by 1000. LLRC correction factor applied as printed in the CF column. Fit range of the predictor is not stated, so none is given."},{"id":"flade-2021-multi-branch-nls","source":"flade-2021","name":"Multi-species short-stature trees branch biomass, cross-sectional area at 0.3 m (NLS)","output":{"quantity":"branch_biomass"},"expression":"12.792 * (0.785398163397448 * D30^2)^1.4315 / 1000","published":{"expression":"12.792 * (0.785398163397448 * D30^2)^1.4315","units":{"D30":"cm"},"output_unit":"g"},"taxon":{"level":"mixed","name":"Multi-species short-stature trees (all tree genera/species sampled)","group":"mixed"},"region":{"scope":"regional","countries":["CA"],"place":"Sporadic to discontinuous permafrost zone, Taiga Plains and Taiga Shield ecozones, northwestern Canada","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":105,"r2":0.923,"method":"iterative nonlinear least squares power function, y = β x^α (unweighted), x = cross-sectional area"},"evidence":[{"field":"expression","quote":"Multi-species short-stature trees Branches NLS 12.792 1.4315 0.923 (columns: β, SE(β), α, SE(α), RMSE, R2); y = βx^α + ε (Eq. 2)","locator":"Table 3, Eqs. 2-5"},{"field":"fit.n_trees","quote":"A total of 206 shrub and 105 tree individuals were measured and destructively sampled at 65 different peatland and forest sites.","locator":"Section 2.2"}],"check":[{"inputs":{"D30":2},"expected":0.0659,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":5},"expected":0.9076,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":8},"expected":3.4858,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper's predictor is cross-sectional area (cm2) of the stem(s) at 0.3 m; converted here to D30 as pi/4 * D30^2 (pi written as 0.785398163397448 * ...), so for multi-stemmed trees D30 is the equivalent diameter of the summed cross-sectional area. Paper output is in g dry mass; canonical form divides by 1000. Fit range of the predictor is not stated, so none is given."},{"id":"flade-2021-multi-leaf-llrc","source":"flade-2021","name":"Multi-species short-stature trees leaf biomass, cross-sectional area at 0.3 m (LLRC)","output":{"quantity":"foliage_biomass"},"expression":"13.25 * 1.5055 * (0.785398163397448 * D30^2)^1.107 / 1000","published":{"expression":"13.25 * 1.5055 * (0.785398163397448 * D30^2)^1.107","units":{"D30":"cm"},"output_unit":"g"},"taxon":{"level":"mixed","name":"Multi-species short-stature trees (all tree genera/species sampled)","group":"mixed"},"region":{"scope":"regional","countries":["CA"],"place":"Sporadic to discontinuous permafrost zone, Taiga Plains and Taiga Shield ecozones, northwestern Canada","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":105,"r2":0.768,"cf":1.5055,"method":"linear log regression with correction factor (LLRC), y = β x^α × CF, x = cross-sectional area"},"evidence":[{"field":"expression","quote":"Multi-species short-stature trees Leaves LLRC 2.584 13.25 1.107 1.5055 0.768 (columns: ln(β), β, α, CF, RMSE, R2); y = βx^α + ε (Eq. 2); y = βx^α × ε (Eq. 4), ε = e^(MSE/2) (Eq. 5)","locator":"Table 3, Eqs. 2-5"},{"field":"fit.n_trees","quote":"A total of 206 shrub and 105 tree individuals were measured and destructively sampled at 65 different peatland and forest sites.","locator":"Section 2.2"}],"check":[{"inputs":{"D30":2},"expected":0.0708,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":5},"expected":0.5386,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":8},"expected":1.5248,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper's predictor is cross-sectional area (cm2) of the stem(s) at 0.3 m; converted here to D30 as pi/4 * D30^2 (pi written as 0.785398163397448 * ...), so for multi-stemmed trees D30 is the equivalent diameter of the summed cross-sectional area. Paper output is in g dry mass; canonical form divides by 1000. LLRC correction factor applied as printed in the CF column. Fit range of the predictor is not stated, so none is given."},{"id":"flade-2021-multi-leaf-nls","source":"flade-2021","name":"Multi-species short-stature trees leaf biomass, cross-sectional area at 0.3 m (NLS)","output":{"quantity":"foliage_biomass"},"expression":"20.2891 * (0.785398163397448 * D30^2)^1.1807 / 1000","published":{"expression":"20.2891 * (0.785398163397448 * D30^2)^1.1807","units":{"D30":"cm"},"output_unit":"g"},"taxon":{"level":"mixed","name":"Multi-species short-stature trees (all tree genera/species sampled)","group":"mixed"},"region":{"scope":"regional","countries":["CA"],"place":"Sporadic to discontinuous permafrost zone, Taiga Plains and Taiga Shield ecozones, northwestern Canada","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":105,"r2":0.767,"method":"iterative nonlinear least squares power function, y = β x^α (unweighted), x = cross-sectional area"},"evidence":[{"field":"expression","quote":"Multi-species short-stature trees Leaves NLS 20.2891 1.1807 0.767 (columns: β, SE(β), α, SE(α), RMSE, R2); y = βx^α + ε (Eq. 2)","locator":"Table 3, Eqs. 2-5"},{"field":"fit.n_trees","quote":"A total of 206 shrub and 105 tree individuals were measured and destructively sampled at 65 different peatland and forest sites.","locator":"Section 2.2"}],"check":[{"inputs":{"D30":2},"expected":0.0784,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":5},"expected":0.6822,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":8},"expected":2.0699,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper's predictor is cross-sectional area (cm2) of the stem(s) at 0.3 m; converted here to D30 as pi/4 * D30^2 (pi written as 0.785398163397448 * ...), so for multi-stemmed trees D30 is the equivalent diameter of the summed cross-sectional area. Paper output is in g dry mass; canonical form divides by 1000. Fit range of the predictor is not stated, so none is given."},{"id":"flade-2021-multi-stem-llrc","source":"flade-2021","name":"Multi-species short-stature trees stem biomass, cross-sectional area at 0.3 m (LLRC)","output":{"quantity":"stem_biomass"},"expression":"46.2009 * 1.1296 * (0.785398163397448 * D30^2)^1.109 / 1000","published":{"expression":"46.2009 * 1.1296 * (0.785398163397448 * D30^2)^1.109","units":{"D30":"cm"},"output_unit":"g"},"taxon":{"level":"mixed","name":"Multi-species short-stature trees (all tree genera/species sampled)","group":"mixed"},"region":{"scope":"regional","countries":["CA"],"place":"Sporadic to discontinuous permafrost zone, Taiga Plains and Taiga Shield ecozones, northwestern Canada","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":105,"r2":0.939,"cf":1.1296,"method":"linear log regression with correction factor (LLRC), y = β x^α × CF, x = cross-sectional area"},"evidence":[{"field":"expression","quote":"Multi-species short-stature trees Stems LLRC 3.833 46.2009 1.109 1.1296 0.939 (columns: ln(β), β, α, CF, RMSE, R2); y = βx^α + ε (Eq. 2); y = βx^α × ε (Eq. 4), ε = e^(MSE/2) (Eq. 5)","locator":"Table 3, Eqs. 2-5"},{"field":"fit.n_trees","quote":"A total of 206 shrub and 105 tree individuals were measured and destructively sampled at 65 different peatland and forest sites.","locator":"Section 2.2"}],"check":[{"inputs":{"D30":2},"expected":0.1857,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":5},"expected":1.4176,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":8},"expected":4.0205,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper's predictor is cross-sectional area (cm2) of the stem(s) at 0.3 m; converted here to D30 as pi/4 * D30^2 (pi written as 0.785398163397448 * ...), so for multi-stemmed trees D30 is the equivalent diameter of the summed cross-sectional area. Paper output is in g dry mass; canonical form divides by 1000. LLRC correction factor applied as printed in the CF column. Fit range of the predictor is not stated, so none is given."},{"id":"flade-2021-multi-stem-nls","source":"flade-2021","name":"Multi-species short-stature trees stem biomass, cross-sectional area at 0.3 m (NLS)","output":{"quantity":"stem_biomass"},"expression":"49.179 * (0.785398163397448 * D30^2)^1.1712 / 1000","published":{"expression":"49.179 * (0.785398163397448 * D30^2)^1.1712","units":{"D30":"cm"},"output_unit":"g"},"taxon":{"level":"mixed","name":"Multi-species short-stature trees (all tree genera/species sampled)","group":"mixed"},"region":{"scope":"regional","countries":["CA"],"place":"Sporadic to discontinuous permafrost zone, Taiga Plains and Taiga Shield ecozones, northwestern Canada","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":105,"r2":0.94,"method":"iterative nonlinear least squares power function, y = β x^α (unweighted), x = cross-sectional area"},"evidence":[{"field":"expression","quote":"Multi-species short-stature trees Stems NLS 49.179 1.1712 0.94 (columns: β, SE(β), α, SE(α), RMSE, R2); y = βx^α + ε (Eq. 2)","locator":"Table 3, Eqs. 2-5"},{"field":"fit.n_trees","quote":"A total of 206 shrub and 105 tree individuals were measured and destructively sampled at 65 different peatland and forest sites.","locator":"Section 2.2"}],"check":[{"inputs":{"D30":2},"expected":0.1879,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":5},"expected":1.6076,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":8},"expected":4.834,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper's predictor is cross-sectional area (cm2) of the stem(s) at 0.3 m; converted here to D30 as pi/4 * D30^2 (pi written as 0.785398163397448 * ...), so for multi-stemmed trees D30 is the equivalent diameter of the summed cross-sectional area. Paper output is in g dry mass; canonical form divides by 1000. Fit range of the predictor is not stated, so none is given."},{"id":"flade-2021-picea-branch-llrc","source":"flade-2021","name":"Picea spp. branch biomass, cross-sectional area at 0.3 m (LLRC)","output":{"quantity":"branch_biomass"},"expression":"30.8766 * 1.1129 * (0.785398163397448 * D30^2)^1.023 / 1000","published":{"expression":"30.8766 * 1.1129 * (0.785398163397448 * D30^2)^1.023","units":{"D30":"cm"},"output_unit":"g"},"taxon":{"level":"genus","name":"Picea spp.","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CA"],"place":"Sporadic to discontinuous permafrost zone, Taiga Plains and Taiga Shield ecozones, northwestern Canada","biomes":["boreal"]},"stand":"natural","fit":{"r2":0.892,"cf":1.1129,"method":"linear log regression with correction factor (LLRC), y = β x^α × CF, x = cross-sectional area"},"evidence":[{"field":"expression","quote":"Picea spp. Branches LLRC 3.430 30.8766 1.023 1.1129 0.892 (columns: ln(β), β, α, CF, RMSE, R2); y = βx^α + ε (Eq. 2); y = βx^α × ε (Eq. 4), ε = e^(MSE/2) (Eq. 5)","locator":"Table 3, Eqs. 2-5"}],"check":[{"inputs":{"D30":2},"expected":0.1108,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":5},"expected":0.7225,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":8},"expected":1.8901,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper's predictor is cross-sectional area (cm2) of the stem(s) at 0.3 m; converted here to D30 as pi/4 * D30^2 (pi written as 0.785398163397448 * ...), so for multi-stemmed trees D30 is the equivalent diameter of the summed cross-sectional area. Paper output is in g dry mass; canonical form divides by 1000. LLRC correction factor applied as printed in the CF column. Fit range of the predictor is not stated, so none is given."},{"id":"flade-2021-picea-branch-nls","source":"flade-2021","name":"Picea spp. branch biomass, cross-sectional area at 0.3 m (NLS)","output":{"quantity":"branch_biomass"},"expression":"19.1842 * (0.785398163397448 * D30^2)^1.2866 / 1000","published":{"expression":"19.1842 * (0.785398163397448 * D30^2)^1.2866","units":{"D30":"cm"},"output_unit":"g"},"taxon":{"level":"genus","name":"Picea spp.","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CA"],"place":"Sporadic to discontinuous permafrost zone, Taiga Plains and Taiga Shield ecozones, northwestern Canada","biomes":["boreal"]},"stand":"natural","fit":{"r2":0.904,"method":"iterative nonlinear least squares power function, y = β x^α (unweighted), x = cross-sectional area"},"evidence":[{"field":"expression","quote":"Picea spp. Branches NLS 19.1842 1.2866 0.904 (columns: β, SE(β), α, SE(α), RMSE, R2); y = βx^α + ε (Eq. 2)","locator":"Table 3, Eqs. 2-5"}],"check":[{"inputs":{"D30":2},"expected":0.0837,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":5},"expected":0.8842,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":8},"expected":2.9634,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper's predictor is cross-sectional area (cm2) of the stem(s) at 0.3 m; converted here to D30 as pi/4 * D30^2 (pi written as 0.785398163397448 * ...), so for multi-stemmed trees D30 is the equivalent diameter of the summed cross-sectional area. Paper output is in g dry mass; canonical form divides by 1000. Fit range of the predictor is not stated, so none is given."},{"id":"flade-2021-picea-leaf-llrc","source":"flade-2021","name":"Picea spp. leaf biomass, cross-sectional area at 0.3 m (LLRC)","output":{"quantity":"foliage_biomass"},"expression":"45.6498 * 1.1088 * (0.785398163397448 * D30^2)^0.8059 / 1000","published":{"expression":"45.6498 * 1.1088 * (0.785398163397448 * D30^2)^0.8059","units":{"D30":"cm"},"output_unit":"g"},"taxon":{"level":"genus","name":"Picea spp.","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CA"],"place":"Sporadic to discontinuous permafrost zone, Taiga Plains and Taiga Shield ecozones, northwestern Canada","biomes":["boreal"]},"stand":"natural","fit":{"r2":0.702,"cf":1.1088,"method":"linear log regression with correction factor (LLRC), y = β x^α × CF, x = cross-sectional area"},"evidence":[{"field":"expression","quote":"Picea spp. Leaves LLRC 3.821 45.6498 0.8059 1.1088 0.702 (columns: ln(β), β, α, CF, RMSE, R2); y = βx^α + ε (Eq. 2); y = βx^α × ε (Eq. 4), ε = e^(MSE/2) (Eq. 5)","locator":"Table 3, Eqs. 2-5"}],"check":[{"inputs":{"D30":2},"expected":0.1273,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":5},"expected":0.5576,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":8},"expected":1.1894,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper's predictor is cross-sectional area (cm2) of the stem(s) at 0.3 m; converted here to D30 as pi/4 * D30^2 (pi written as 0.785398163397448 * ...), so for multi-stemmed trees D30 is the equivalent diameter of the summed cross-sectional area. Paper output is in g dry mass; canonical form divides by 1000. LLRC correction factor applied as printed in the CF column. Fit range of the predictor is not stated, so none is given."},{"id":"flade-2021-picea-leaf-nls","source":"flade-2021","name":"Picea spp. leaf biomass, cross-sectional area at 0.3 m (NLS)","output":{"quantity":"foliage_biomass"},"expression":"42.2998 * (0.785398163397448 * D30^2)^0.9148 / 1000","published":{"expression":"42.2998 * (0.785398163397448 * D30^2)^0.9148","units":{"D30":"cm"},"output_unit":"g"},"taxon":{"level":"genus","name":"Picea spp.","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CA"],"place":"Sporadic to discontinuous permafrost zone, Taiga Plains and Taiga Shield ecozones, northwestern Canada","biomes":["boreal"]},"stand":"natural","fit":{"r2":0.704,"method":"iterative nonlinear least squares power function, y = β x^α (unweighted), x = cross-sectional area"},"evidence":[{"field":"expression","quote":"Picea spp. Leaves NLS 42.2998 0.9148 0.704 (columns: β, SE(β), α, SE(α), RMSE, R2); y = βx^α + ε (Eq. 2)","locator":"Table 3, Eqs. 2-5"}],"check":[{"inputs":{"D30":2},"expected":0.1205,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":5},"expected":0.6445,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":8},"expected":1.5229,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper's predictor is cross-sectional area (cm2) of the stem(s) at 0.3 m; converted here to D30 as pi/4 * D30^2 (pi written as 0.785398163397448 * ...), so for multi-stemmed trees D30 is the equivalent diameter of the summed cross-sectional area. Paper output is in g dry mass; canonical form divides by 1000. Fit range of the predictor is not stated, so none is given."},{"id":"flade-2021-picea-stem-llrc","source":"flade-2021","name":"Picea spp. stem biomass, cross-sectional area at 0.3 m (LLRC)","output":{"quantity":"stem_biomass"},"expression":"49.1069 * 1.0782 * (0.785398163397448 * D30^2)^1.067 / 1000","published":{"expression":"49.1069 * 1.0782 * (0.785398163397448 * D30^2)^1.067","units":{"D30":"cm"},"output_unit":"g"},"taxon":{"level":"genus","name":"Picea spp.","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CA"],"place":"Sporadic to discontinuous permafrost zone, Taiga Plains and Taiga Shield ecozones, northwestern Canada","biomes":["boreal"]},"stand":"natural","fit":{"r2":0.928,"cf":1.0782,"method":"linear log regression with correction factor (LLRC), y = β x^α × CF, x = cross-sectional area"},"evidence":[{"field":"expression","quote":"Picea spp. Stems LLRC 3.894 49.1069 1.067 1.0782 0.928 (columns: ln(β), β, α, CF, RMSE, R2); y = βx^α + ε (Eq. 2); y = βx^α × ε (Eq. 4), ε = e^(MSE/2) (Eq. 5)","locator":"Table 3, Eqs. 2-5"}],"check":[{"inputs":{"D30":2},"expected":0.1796,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":5},"expected":1.2691,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":8},"expected":3.4602,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper's predictor is cross-sectional area (cm2) of the stem(s) at 0.3 m; converted here to D30 as pi/4 * D30^2 (pi written as 0.785398163397448 * ...), so for multi-stemmed trees D30 is the equivalent diameter of the summed cross-sectional area. Paper output is in g dry mass; canonical form divides by 1000. LLRC correction factor applied as printed in the CF column. Fit range of the predictor is not stated, so none is given."},{"id":"flade-2021-picea-stem-nls","source":"flade-2021","name":"Picea spp. stem biomass, cross-sectional area at 0.3 m (NLS)","output":{"quantity":"stem_biomass"},"expression":"42.8437 * (0.785398163397448 * D30^2)^1.2201 / 1000","published":{"expression":"42.8437 * (0.785398163397448 * D30^2)^1.2201","units":{"D30":"cm"},"output_unit":"g"},"taxon":{"level":"genus","name":"Picea spp.","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CA"],"place":"Sporadic to discontinuous permafrost zone, Taiga Plains and Taiga Shield ecozones, northwestern Canada","biomes":["boreal"]},"stand":"natural","fit":{"r2":0.929,"method":"iterative nonlinear least squares power function, y = β x^α (unweighted), x = cross-sectional area"},"evidence":[{"field":"expression","quote":"Picea spp. Stems NLS 42.8437 1.2201 0.929 (columns: β, SE(β), α, SE(α), RMSE, R2); y = βx^α + ε (Eq. 2)","locator":"Table 3, Eqs. 2-5"}],"check":[{"inputs":{"D30":2},"expected":0.1732,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":5},"expected":1.62,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":8},"expected":5.1004,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper's predictor is cross-sectional area (cm2) of the stem(s) at 0.3 m; converted here to D30 as pi/4 * D30^2 (pi written as 0.785398163397448 * ...), so for multi-stemmed trees D30 is the equivalent diameter of the summed cross-sectional area. Paper output is in g dry mass; canonical form divides by 1000. Fit range of the predictor is not stated, so none is given."},{"id":"flade-2021-pobal-branch-llrc","source":"flade-2021","name":"Populus balsamifera branch biomass, cross-sectional area at 0.3 m (LLRC)","output":{"quantity":"branch_biomass"},"expression":"5.8885 * 1.4758 * (0.785398163397448 * D30^2)^1.114 / 1000","published":{"expression":"5.8885 * 1.4758 * (0.785398163397448 * D30^2)^1.114","units":{"D30":"cm"},"output_unit":"g"},"taxon":{"level":"species","name":"Populus balsamifera","family":"Salicaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CA"],"place":"Sporadic to discontinuous permafrost zone, Taiga Plains and Taiga Shield ecozones, northwestern Canada","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":31,"r2":0.736,"cf":1.4758,"method":"linear log regression with correction factor (LLRC), y = β x^α × CF, x = cross-sectional area"},"evidence":[{"field":"expression","quote":"Populus balsamifera Branches LLRC 1.773 5.8885 1.114 1.4758 0.736 (columns: ln(β), β, α, CF, RMSE, R2); y = βx^α + ε (Eq. 2); y = βx^α × ε (Eq. 4), ε = e^(MSE/2) (Eq. 5)","locator":"Table 3, Eqs. 2-5"},{"field":"fit.n_trees","quote":"Populus balsamifera 31","locator":"Table 1, No. of Samples"}],"check":[{"inputs":{"D30":2},"expected":0.0311,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":5},"expected":0.2396,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":8},"expected":0.6827,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper's predictor is cross-sectional area (cm2) of the stem(s) at 0.3 m; converted here to D30 as pi/4 * D30^2 (pi written as 0.785398163397448 * ...), so for multi-stemmed trees D30 is the equivalent diameter of the summed cross-sectional area. Paper output is in g dry mass; canonical form divides by 1000. LLRC correction factor applied as printed in the CF column. Fit range of the predictor is not stated, so none is given."},{"id":"flade-2021-pobal-branch-nls","source":"flade-2021","name":"Populus balsamifera branch biomass, cross-sectional area at 0.3 m (NLS)","output":{"quantity":"branch_biomass"},"expression":"7.6872 * (0.785398163397448 * D30^2)^1.234 / 1000","published":{"expression":"7.6872 * (0.785398163397448 * D30^2)^1.234","units":{"D30":"cm"},"output_unit":"g"},"taxon":{"level":"species","name":"Populus balsamifera","family":"Salicaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CA"],"place":"Sporadic to discontinuous permafrost zone, Taiga Plains and Taiga Shield ecozones, northwestern Canada","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":31,"r2":0.737,"method":"iterative nonlinear least squares power function, y = β x^α (unweighted), x = cross-sectional area"},"evidence":[{"field":"expression","quote":"Populus balsamifera Branches NLS 7.6872 1.234 0.737 (columns: β, SE(β), α, SE(α), RMSE, R2); y = βx^α + ε (Eq. 2)","locator":"Table 3, Eqs. 2-5"},{"field":"fit.n_trees","quote":"Populus balsamifera 31","locator":"Table 1, No. of Samples"}],"check":[{"inputs":{"D30":2},"expected":0.0316,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":5},"expected":0.3029,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":8},"expected":0.9664,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper's predictor is cross-sectional area (cm2) of the stem(s) at 0.3 m; converted here to D30 as pi/4 * D30^2 (pi written as 0.785398163397448 * ...), so for multi-stemmed trees D30 is the equivalent diameter of the summed cross-sectional area. Paper output is in g dry mass; canonical form divides by 1000. Fit range of the predictor is not stated, so none is given."},{"id":"flade-2021-pobal-leaf-llrc","source":"flade-2021","name":"Populus balsamifera leaf biomass, cross-sectional area at 0.3 m (LLRC)","output":{"quantity":"foliage_biomass"},"expression":"7.5989 * 1.4577 * (0.785398163397448 * D30^2)^1.037 / 1000","published":{"expression":"7.5989 * 1.4577 * (0.785398163397448 * D30^2)^1.037","units":{"D30":"cm"},"output_unit":"g"},"taxon":{"level":"species","name":"Populus balsamifera","family":"Salicaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CA"],"place":"Sporadic to discontinuous permafrost zone, Taiga Plains and Taiga Shield ecozones, northwestern Canada","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":31,"r2":0.832,"cf":1.4577,"method":"linear log regression with correction factor (LLRC), y = β x^α × CF, x = cross-sectional area"},"evidence":[{"field":"expression","quote":"Populus balsamifera Leaves LLRC 2.028 7.5989 1.037 1.4577 0.832 (columns: ln(β), β, α, CF, RMSE, R2); y = βx^α + ε (Eq. 2); y = βx^α × ε (Eq. 4), ε = e^(MSE/2) (Eq. 5)","locator":"Table 3, Eqs. 2-5"},{"field":"fit.n_trees","quote":"Populus balsamifera 31","locator":"Table 1, No. of Samples"}],"check":[{"inputs":{"D30":2},"expected":0.0363,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":5},"expected":0.2428,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":8},"expected":0.6436,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper's predictor is cross-sectional area (cm2) of the stem(s) at 0.3 m; converted here to D30 as pi/4 * D30^2 (pi written as 0.785398163397448 * ...), so for multi-stemmed trees D30 is the equivalent diameter of the summed cross-sectional area. Paper output is in g dry mass; canonical form divides by 1000. LLRC correction factor applied as printed in the CF column. Fit range of the predictor is not stated, so none is given."},{"id":"flade-2021-pobal-leaf-nls","source":"flade-2021","name":"Populus balsamifera leaf biomass, cross-sectional area at 0.3 m (NLS)","output":{"quantity":"foliage_biomass"},"expression":"8.31954 * (0.785398163397448 * D30^2)^1.1007 / 1000","published":{"expression":"8.31954 * (0.785398163397448 * D30^2)^1.1007","units":{"D30":"cm"},"output_unit":"g"},"taxon":{"level":"species","name":"Populus balsamifera","family":"Salicaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CA"],"place":"Sporadic to discontinuous permafrost zone, Taiga Plains and Taiga Shield ecozones, northwestern Canada","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":31,"r2":0.834,"method":"iterative nonlinear least squares power function, y = β x^α (unweighted), x = cross-sectional area"},"evidence":[{"field":"expression","quote":"Populus balsamifera Leaves ILS 8.31954 1.1007 0.834 (columns: β, SE(β), α, SE(α), RMSE, R2); y = βx^α + ε (Eq. 2)","locator":"Table 3, Eqs. 2-5"},{"field":"fit.n_trees","quote":"Populus balsamifera 31","locator":"Table 1, No. of Samples"}],"check":[{"inputs":{"D30":2},"expected":0.0293,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":5},"expected":0.2205,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":8},"expected":0.6204,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper's predictor is cross-sectional area (cm2) of the stem(s) at 0.3 m; converted here to D30 as pi/4 * D30^2 (pi written as 0.785398163397448 * ...), so for multi-stemmed trees D30 is the equivalent diameter of the summed cross-sectional area. Paper output is in g dry mass; canonical form divides by 1000. Fit range of the predictor is not stated, so none is given. Table 3 labels this row \"ILS\"; it sits in the NLS position (β, SE(β), α, SE(α) columns, no CF) and the paper defines only NLS and LLRC, so it is read as a misprint of NLS."},{"id":"flade-2021-pobal-stem-llrc","source":"flade-2021","name":"Populus balsamifera stem biomass, cross-sectional area at 0.3 m (LLRC)","output":{"quantity":"stem_biomass"},"expression":"44.9253 * 1.1648 * (0.785398163397448 * D30^2)^1.132 / 1000","published":{"expression":"44.9253 * 1.1648 * (0.785398163397448 * D30^2)^1.132","units":{"D30":"cm"},"output_unit":"g"},"taxon":{"level":"species","name":"Populus balsamifera","family":"Salicaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CA"],"place":"Sporadic to discontinuous permafrost zone, Taiga Plains and Taiga Shield ecozones, northwestern Canada","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":31,"r2":0.919,"cf":1.1648,"method":"linear log regression with correction factor (LLRC), y = β x^α × CF, x = cross-sectional area"},"evidence":[{"field":"expression","quote":"Populus balsamifera Stems LLRC 3.805 44.9253 1.132 1.1648 0.919 (columns: ln(β), β, α, CF, RMSE, R2); y = βx^α + ε (Eq. 2); y = βx^α × ε (Eq. 4), ε = e^(MSE/2) (Eq. 5)","locator":"Table 3, Eqs. 2-5"},{"field":"fit.n_trees","quote":"Populus balsamifera 31","locator":"Table 1, No. of Samples"}],"check":[{"inputs":{"D30":2},"expected":0.1912,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":5},"expected":1.5221,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":8},"expected":4.4114,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper's predictor is cross-sectional area (cm2) of the stem(s) at 0.3 m; converted here to D30 as pi/4 * D30^2 (pi written as 0.785398163397448 * ...), so for multi-stemmed trees D30 is the equivalent diameter of the summed cross-sectional area. Paper output is in g dry mass; canonical form divides by 1000. LLRC correction factor applied as printed in the CF column. Fit range of the predictor is not stated, so none is given."},{"id":"flade-2021-pobal-stem-nls","source":"flade-2021","name":"Populus balsamifera stem biomass, cross-sectional area at 0.3 m (NLS)","output":{"quantity":"stem_biomass"},"expression":"47.3512 * (0.785398163397448 * D30^2)^1.3235 / 1000","published":{"expression":"47.3512 * (0.785398163397448 * D30^2)^1.3235","units":{"D30":"cm"},"output_unit":"g"},"taxon":{"level":"species","name":"Populus balsamifera","family":"Salicaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CA"],"place":"Sporadic to discontinuous permafrost zone, Taiga Plains and Taiga Shield ecozones, northwestern Canada","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":31,"r2":0.924,"method":"iterative nonlinear least squares power function, y = β x^α (unweighted), x = cross-sectional area"},"evidence":[{"field":"expression","quote":"Populus balsamifera Stems NLS 47.3512 1.3235 0.924 (columns: β, SE(β), α, SE(α), RMSE, R2); y = βx^α + ε (Eq. 2)","locator":"Table 3, Eqs. 2-5"},{"field":"fit.n_trees","quote":"Populus balsamifera 31","locator":"Table 1, No. of Samples"}],"check":[{"inputs":{"D30":2},"expected":0.2154,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":5},"expected":2.4359,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":8},"expected":8.452,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper's predictor is cross-sectional area (cm2) of the stem(s) at 0.3 m; converted here to D30 as pi/4 * D30^2 (pi written as 0.785398163397448 * ...), so for multi-stemmed trees D30 is the equivalent diameter of the summed cross-sectional area. Paper output is in g dry mass; canonical form divides by 1000. Fit range of the predictor is not stated, so none is given."},{"id":"flade-2021-potre-branch-llrc","source":"flade-2021","name":"Populus tremuloides branch biomass, cross-sectional area at 0.3 m (LLRC)","output":{"quantity":"branch_biomass"},"expression":"5.3763 * 1.538 * (0.785398163397448 * D30^2)^1.091 / 1000","published":{"expression":"5.3763 * 1.538 * (0.785398163397448 * D30^2)^1.091","units":{"D30":"cm"},"output_unit":"g"},"taxon":{"level":"species","name":"Populus tremuloides","family":"Salicaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CA"],"place":"Sporadic to discontinuous permafrost zone, Taiga Plains and Taiga Shield ecozones, northwestern Canada","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":30,"r2":0.816,"cf":1.538,"method":"linear log regression with correction factor (LLRC), y = β x^α × CF, x = cross-sectional area"},"evidence":[{"field":"expression","quote":"Populus tremuloides Branches LLRC 1.682 5.3763 1.091 1.538 0.816 (columns: ln(β), β, α, CF, RMSE, R2); y = βx^α + ε (Eq. 2); y = βx^α × ε (Eq. 4), ε = e^(MSE/2) (Eq. 5)","locator":"Table 3, Eqs. 2-5"},{"field":"fit.n_trees","quote":"Populus tremuloides 30","locator":"Table 1, No. of Samples"}],"check":[{"inputs":{"D30":2},"expected":0.0288,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":5},"expected":0.2129,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":8},"expected":0.5936,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper's predictor is cross-sectional area (cm2) of the stem(s) at 0.3 m; converted here to D30 as pi/4 * D30^2 (pi written as 0.785398163397448 * ...), so for multi-stemmed trees D30 is the equivalent diameter of the summed cross-sectional area. Paper output is in g dry mass; canonical form divides by 1000. LLRC correction factor applied as printed in the CF column. Fit range of the predictor is not stated, so none is given."},{"id":"flade-2021-potre-branch-nls","source":"flade-2021","name":"Populus tremuloides branch biomass, cross-sectional area at 0.3 m (NLS)","output":{"quantity":"branch_biomass"},"expression":"4.591 * (0.785398163397448 * D30^2)^1.8127 / 1000","published":{"expression":"4.591 * (0.785398163397448 * D30^2)^1.8127","units":{"D30":"cm"},"output_unit":"g"},"taxon":{"level":"species","name":"Populus tremuloides","family":"Salicaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CA"],"place":"Sporadic to discontinuous permafrost zone, Taiga Plains and Taiga Shield ecozones, northwestern Canada","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":30,"r2":0.888,"method":"iterative nonlinear least squares power function, y = β x^α (unweighted), x = cross-sectional area"},"evidence":[{"field":"expression","quote":"Populus tremuloides Branches NLS 4.591 1.8127 0.888 (columns: β, SE(β), α, SE(α), RMSE, R2); y = βx^α + ε (Eq. 2)","locator":"Table 3, Eqs. 2-5"},{"field":"fit.n_trees","quote":"Populus tremuloides 30","locator":"Table 1, No. of Samples"}],"check":[{"inputs":{"D30":2},"expected":0.0366,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":5},"expected":1.0134,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":8},"expected":5.5693,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper's predictor is cross-sectional area (cm2) of the stem(s) at 0.3 m; converted here to D30 as pi/4 * D30^2 (pi written as 0.785398163397448 * ...), so for multi-stemmed trees D30 is the equivalent diameter of the summed cross-sectional area. Paper output is in g dry mass; canonical form divides by 1000. Fit range of the predictor is not stated, so none is given."},{"id":"flade-2021-potre-leaf-llrc","source":"flade-2021","name":"Populus tremuloides leaf biomass, cross-sectional area at 0.3 m (LLRC)","output":{"quantity":"foliage_biomass"},"expression":"9.5353 * 1.1365 * (0.785398163397448 * D30^2)^0.8919 / 1000","published":{"expression":"9.5353 * 1.1365 * (0.785398163397448 * D30^2)^0.8919","units":{"D30":"cm"},"output_unit":"g"},"taxon":{"level":"species","name":"Populus tremuloides","family":"Salicaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CA"],"place":"Sporadic to discontinuous permafrost zone, Taiga Plains and Taiga Shield ecozones, northwestern Canada","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":30,"r2":0.854,"cf":1.1365,"method":"linear log regression with correction factor (LLRC), y = β x^α × CF, x = cross-sectional area"},"evidence":[{"field":"expression","quote":"Populus tremuloides Leaves LLRC 2.255 9.5353 0.8919 1.1365 0.854 (columns: ln(β), β, α, CF, RMSE, R2); y = βx^α + ε (Eq. 2); y = βx^α × ε (Eq. 4), ε = e^(MSE/2) (Eq. 5)","locator":"Table 3, Eqs. 2-5"},{"field":"fit.n_trees","quote":"Populus tremuloides 30","locator":"Table 1, No. of Samples"}],"check":[{"inputs":{"D30":2},"expected":0.0301,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":5},"expected":0.1542,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":8},"expected":0.3567,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper's predictor is cross-sectional area (cm2) of the stem(s) at 0.3 m; converted here to D30 as pi/4 * D30^2 (pi written as 0.785398163397448 * ...), so for multi-stemmed trees D30 is the equivalent diameter of the summed cross-sectional area. Paper output is in g dry mass; canonical form divides by 1000. LLRC correction factor applied as printed in the CF column. Fit range of the predictor is not stated, so none is given."},{"id":"flade-2021-potre-leaf-nls","source":"flade-2021","name":"Populus tremuloides leaf biomass, cross-sectional area at 0.3 m (NLS)","output":{"quantity":"foliage_biomass"},"expression":"8.07253 * (0.785398163397448 * D30^2)^1.4362 / 1000","published":{"expression":"8.07253 * (0.785398163397448 * D30^2)^1.4362","units":{"D30":"cm"},"output_unit":"g"},"taxon":{"level":"species","name":"Populus tremuloides","family":"Salicaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CA"],"place":"Sporadic to discontinuous permafrost zone, Taiga Plains and Taiga Shield ecozones, northwestern Canada","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":30,"r2":0.917,"method":"iterative nonlinear least squares power function, y = β x^α (unweighted), x = cross-sectional area"},"evidence":[{"field":"expression","quote":"Populus tremuloides Leaves NLS 8.07253 1.4362 0.917 (columns: β, SE(β), α, SE(α), RMSE, R2); y = βx^α + ε (Eq. 2)","locator":"Table 3, Eqs. 2-5"},{"field":"fit.n_trees","quote":"Populus tremuloides 30","locator":"Table 1, No. of Samples"}],"check":[{"inputs":{"D30":2},"expected":0.0418,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":5},"expected":0.5808,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":8},"expected":2.2406,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper's predictor is cross-sectional area (cm2) of the stem(s) at 0.3 m; converted here to D30 as pi/4 * D30^2 (pi written as 0.785398163397448 * ...), so for multi-stemmed trees D30 is the equivalent diameter of the summed cross-sectional area. Paper output is in g dry mass; canonical form divides by 1000. Fit range of the predictor is not stated, so none is given."},{"id":"flade-2021-potre-stem-llrc","source":"flade-2021","name":"Populus tremuloides stem biomass, cross-sectional area at 0.3 m (LLRC)","output":{"quantity":"stem_biomass"},"expression":"43.3801 * 1.1627 * (0.785398163397448 * D30^2)^1.067 / 1000","published":{"expression":"43.3801 * 1.1627 * (0.785398163397448 * D30^2)^1.067","units":{"D30":"cm"},"output_unit":"g"},"taxon":{"level":"species","name":"Populus tremuloides","family":"Salicaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CA"],"place":"Sporadic to discontinuous permafrost zone, Taiga Plains and Taiga Shield ecozones, northwestern Canada","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":30,"r2":0.95,"cf":1.1627,"method":"linear log regression with correction factor (LLRC), y = β x^α × CF, x = cross-sectional area"},"evidence":[{"field":"expression","quote":"Populus tremuloides Stems LLRC 3.770 43.3801 1.067 1.1627 0.95 (columns: ln(β), β, α, CF, RMSE, R2); y = βx^α + ε (Eq. 2); y = βx^α × ε (Eq. 4), ε = e^(MSE/2) (Eq. 5)","locator":"Table 3, Eqs. 2-5"},{"field":"fit.n_trees","quote":"Populus tremuloides 30","locator":"Table 1, No. of Samples"}],"check":[{"inputs":{"D30":2},"expected":0.1711,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":5},"expected":1.209,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":8},"expected":3.2962,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper's predictor is cross-sectional area (cm2) of the stem(s) at 0.3 m; converted here to D30 as pi/4 * D30^2 (pi written as 0.785398163397448 * ...), so for multi-stemmed trees D30 is the equivalent diameter of the summed cross-sectional area. Paper output is in g dry mass; canonical form divides by 1000. LLRC correction factor applied as printed in the CF column. Fit range of the predictor is not stated, so none is given."},{"id":"flade-2021-potre-stem-nls","source":"flade-2021","name":"Populus tremuloides stem biomass, cross-sectional area at 0.3 m (NLS)","output":{"quantity":"stem_biomass"},"expression":"41.7058 * (0.785398163397448 * D30^2)^1.2658 / 1000","published":{"expression":"41.7058 * (0.785398163397448 * D30^2)^1.2658","units":{"D30":"cm"},"output_unit":"g"},"taxon":{"level":"species","name":"Populus tremuloides","family":"Salicaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CA"],"place":"Sporadic to discontinuous permafrost zone, Taiga Plains and Taiga Shield ecozones, northwestern Canada","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":30,"r2":0.96,"method":"iterative nonlinear least squares power function, y = β x^α (unweighted), x = cross-sectional area"},"evidence":[{"field":"expression","quote":"Populus tremuloides Stems NLS 41.7058 1.2658 0.96 (columns: β, SE(β), α, SE(α), RMSE, R2); y = βx^α + ε (Eq. 2)","locator":"Table 3, Eqs. 2-5"},{"field":"fit.n_trees","quote":"Populus tremuloides 30","locator":"Table 1, No. of Samples"}],"check":[{"inputs":{"D30":2},"expected":0.1776,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":5},"expected":1.8068,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D30":8},"expected":5.9383,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper's predictor is cross-sectional area (cm2) of the stem(s) at 0.3 m; converted here to D30 as pi/4 * D30^2 (pi written as 0.785398163397448 * ...), so for multi-stemmed trees D30 is the equivalent diameter of the summed cross-sectional area. Paper output is in g dry mass; canonical form divides by 1000. Fit range of the predictor is not stated, so none is given."},{"id":"fonseca-2009-hieronyma-alchorneoides-total","source":"fonseca-2009","name":"Hieronyma alchorneoides plantations, total tree biomass incl. roots (Bt)","output":{"quantity":"total_biomass"},"expression":"1.06 * exp(-2.12607 + 1.69594 * D^0.5)","published":{"expression":"1.06 * exp(-2.12607 + 1.69594 * d^0.5)","units":{"d":"cm"},"variables":{"d":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Hieronyma alchorneoides","family":"Phyllanthaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CR"],"place":"Caribbean (Atlantic) lowlands of Costa Rica","biomes":["tropical"]},"stand":"plantation","fit":{"n_trees":53,"dbh_min_cm":0.5,"dbh_max_cm":28.8,"r2":0.9777,"rse":0.3478,"cf":1.06,"method":"OLS on ln(Bt) vs √d (Statgraphics); Sprugel correction factor"},"evidence":[{"field":"expression","quote":"Bt = exp(-2,12607 + 1,69594* d ^0,5) 97,77 0,3478 – 53 1,06","locator":"Cuadro 2, Hieronyma alchorneiodes"},{"field":"fit.dbh_min_cm","quote":"Para H. alchorneoides se evaluaron 58 árboles con diámetros entre 0,5 y 28,8 cm","locator":"Métodos, p. 37"},{"field":"fit.cf","quote":"Los modelos seleccionados con transformaciones logarítmicas fueron corregidos utilizando un factor de corrección (FC)","locator":"Métodos, p. 39"},{"field":"output.quantity","quote":"biomasa total (Bt), que incluye todos los componentes del árbol","locator":"Resultados, p. 39"}],"check":[{"inputs":{"D":20},"expected":248.8059,"origin":"computed","note":"computed from the Cuadro 2 model times FC 1,06"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Bt includes roots (total above + below, kg/tree). FC = 1,06 multiplied in. Diameter range is for the 58 sampled trees; the Bt model used n = 53. r2 is adjusted R²."},{"id":"fonseca-2009-secondary-forest-roots","source":"fonseca-2009","name":"Caribbean Costa Rica secondary forest (35 species), root biomass from DBH","output":{"quantity":"bgb"},"expression":"1.14 * exp(-3.98702 + 2.48739 * ln(D))","published":{"expression":"1.14 * exp(-3.98702 + 2.48739 * ln(d))","units":{"d":"cm"},"variables":{"d":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Secondary forest trees, 35 species (highest-IVI species per diameter class)","group":"broadleaf"},"region":{"scope":"regional","countries":["CR"],"place":"Caribbean (Atlantic) lowlands of Costa Rica","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":122,"dbh_min_cm":2.8,"dbh_max_cm":28.2,"r2":0.9125,"rse":0.5053,"cf":1.14,"method":"OLS on ln(Bra) vs ln(d); Sprugel correction factor"},"evidence":[{"field":"expression","quote":"Bra = exp(-3,98702 + 2,48739*ln(d)) 91,25 0,5053 – 122 1,14","locator":"Cuadro 2, Bosque secundario"},{"field":"fit.dbh_min_cm","quote":"En estos bosques la muestra fue de 160 árboles correspondientes a 35 especies, cuyo diámetro varió entre 2,8 cm y 28,2 cm","locator":"Métodos, p. 37"},{"field":"fit.cf","quote":"Los modelos seleccionados con transformaciones logarítmicas fueron corregidos utilizando un factor de corrección (FC)","locator":"Métodos, p. 39"}],"check":[{"inputs":{"D":15},"expected":17.814,"origin":"computed","note":"computed from the Cuadro 2 model times FC 1,14"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Root (Bra) dry biomass per tree from excavated root systems, secondary forests 3–20 years old. FC = 1,14 multiplied in. The secondary-forest total-biomass model in Cuadro 2 is not included: it is printed as 'Log(Bt) = -1,80246 + 2,28927*ln(d)' with Log defined as base 10, which gives implausible values; the base is ambiguous."},{"id":"fonseca-2009-vochysia-guatemalensis-total","source":"fonseca-2009","name":"Vochysia guatemalensis plantations, total tree biomass incl. roots (Bt)","output":{"quantity":"total_biomass"},"expression":"1.07 * exp(-1.44742 + 1.3308 * D^0.5)","published":{"expression":"1.07 * exp(-1.44742 + 1.3308 * d^0.5)","units":{"d":"cm"},"variables":{"d":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Vochysia guatemalensis","family":"Vochysiaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CR"],"place":"Caribbean (Atlantic) lowlands of Costa Rica","biomes":["tropical"]},"stand":"plantation","fit":{"n_trees":51,"dbh_min_cm":0.5,"dbh_max_cm":40.5,"r2":0.9798,"rse":0.3682,"cf":1.07,"method":"OLS on ln(Bt) vs √d (Statgraphics); Sprugel correction factor"},"evidence":[{"field":"expression","quote":"Bt = exp(-1,44742 + 1,3308* d ^0,5) 97,98 0,3682 – 51 1,07","locator":"Cuadro 2, Vochysia guatemalensis (R2aj %, SEE, IF, n, FC)"},{"field":"fit.dbh_min_cm","quote":"en V. guatemalensis la muestra fue de 54 individuos con diámetros entre 0,5 y 40,5 cm","locator":"Métodos, p. 37"},{"field":"fit.cf","quote":"Los modelos seleccionados con transformaciones logarítmicas fueron corregidos utilizando un factor de corrección (FC)","locator":"Métodos, p. 39"},{"field":"output.quantity","quote":"biomasa total (Bt), que incluye todos los componentes del árbol","locator":"Resultados, p. 39"}],"check":[{"inputs":{"D":20},"expected":96.7139,"origin":"computed","note":"computed from the Cuadro 2 model times FC 1,07"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Bt is whole-tree dry biomass including excavated roots (kg/tree), so the output is total (above + below) biomass, not AGB. FC = 1,07 (exp(SEE²/2)) is printed in its own column and multiplied in here. One mean-diameter tree harvested per plot, plantations 0,5–16 years old; r2 is adjusted R². Diameter range is for the 54 sampled trees; the Bt model used n = 51."},{"id":"forrester-2017-fagus-sylvatica","source":"forrester-2017","name":"European general equation, Fagus sylvatica, aboveground, diameter only (Eq. 3)","output":{"quantity":"agb"},"expression":"0.996924 * exp(-1.6594 + 2.3589 * ln(D))","published":{"expression":"0.996924 * exp(-1.6594 + 2.3589 * ln(d))","units":{"d":"cm"},"variables":{"d":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Fagus sylvatica","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"continental","countries":[],"place":"Europe (latitude min/mean/max 42.3 / 49.6 / 56 °N)","biomes":["temperate"]},"stand":"mixed","fit":{"dbh_min_cm":1,"dbh_max_cm":84,"r2":0.981,"cf":0.996924,"method":"Mixed-effects regression of ln(Y) on ln(d) (source as random effect) on 330 pseudo-observations generated from published equations plus raw data; Snowdon ratio CF"},"evidence":[{"field":"expression","quote":"ln(Y) = lnβ0 + β1ln(d) + ε (3)","locator":"Eq. 3, revised manuscript l. 322"},{"field":"fit.cf","quote":"a correction factor (CF) was calculated from the mean of the pseudo-observations divided by the mean of the values predicted by the regional equation (Snowden, 1991)","locator":"Methods, revised manuscript ll. 343–346"},{"field":"expression","quote":"Fagus sylvatica | Aboveground | 3 | -1.6594 | 2.3589 | CF 0.996923865219428 | N 330","locator":"Appendix A, worksheet Table A.5, row 306"},{"field":"fit.dbh_min_cm","quote":"d range (cm) 1 / … / 84 (min / mean / max)","locator":"Appendix A, Table A.5, row 306, column AU"}],"check":[{"inputs":{"D":30},"expected":578.5956,"origin":"computed","note":"computed from the published form (with CF) at d = 30 cm"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Y in kg per tree, d in cm at 1.3 m (manuscript l. 316). Printed intercept is ln(β0). CF (0.996924) multiplies the back-transformed prediction and is applied in both forms. N = 330 is the number of pseudo-observations plus raw observations, not trees. The same worksheet also gives versions with age, basal area, stand density and climate terms (Eqs. 4–21)."},{"id":"forrester-2017-picea-abies","source":"forrester-2017","name":"European general equation, Picea abies, aboveground, diameter only (Eq. 3)","output":{"quantity":"agb"},"expression":"1.059141 * exp(-1.8865 + 2.3034 * ln(D))","published":{"expression":"1.059141 * exp(-1.8865 + 2.3034 * ln(d))","units":{"d":"cm"},"variables":{"d":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Picea abies","family":"Pinaceae","group":"conifer"},"region":{"scope":"continental","countries":[],"place":"Europe (latitude min/mean/max 42.7 / 53.5 / 65 °N)","biomes":["temperate","boreal"]},"stand":"mixed","fit":{"dbh_min_cm":1,"dbh_max_cm":82,"r2":0.985,"cf":1.059141,"method":"Mixed-effects regression of ln(Y) on ln(d) (source as random effect) on 576 pseudo-observations generated from published equations plus raw data; Snowdon ratio CF"},"evidence":[{"field":"expression","quote":"ln(Y) = lnβ0 + β1ln(d) + ε (3)","locator":"Eq. 3, revised manuscript l. 322"},{"field":"fit.cf","quote":"a correction factor (CF) was calculated from the mean of the pseudo-observations divided by the mean of the values predicted by the regional equation (Snowden, 1991)","locator":"Methods, revised manuscript ll. 343–346"},{"field":"expression","quote":"Picea abies | Aboveground | 3 | -1.8865 | 2.3034 | CF 1.05914076643193 | N 576","locator":"Appendix A, worksheet Table A.5, row 374"},{"field":"fit.dbh_min_cm","quote":"d range (cm) 1 / … / 82 (min / mean / max)","locator":"Appendix A, Table A.5, row 374, column AU"}],"check":[{"inputs":{"D":30},"expected":405.563,"origin":"computed","note":"computed from the published form (with CF) at d = 30 cm"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Y in kg per tree, d in cm at 1.3 m (manuscript l. 316). Printed intercept is ln(β0). CF (1.059141) multiplies the back-transformed prediction and is applied in both forms. N = 576 is the number of pseudo-observations plus raw observations, not trees. The same worksheet also gives versions with age, basal area, stand density and climate terms (Eqs. 4–21)."},{"id":"forrester-2017-pinus-sylvestris","source":"forrester-2017","name":"European general equation, Pinus sylvestris, aboveground, diameter only (Eq. 3)","output":{"quantity":"agb"},"expression":"1.118707 * exp(-2.1575 + 2.3097 * ln(D))","published":{"expression":"1.118707 * exp(-2.1575 + 2.3097 * ln(d))","units":{"d":"cm"},"variables":{"d":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus sylvestris","family":"Pinaceae","group":"conifer"},"region":{"scope":"continental","countries":[],"place":"Europe (latitude min/mean/max 44 / 54.7 / 65 °N)","biomes":["temperate","boreal"]},"stand":"mixed","fit":{"dbh_min_cm":1,"dbh_max_cm":71,"r2":0.977,"cf":1.118707,"method":"Mixed-effects regression of ln(Y) on ln(d) (source as random effect) on 495 pseudo-observations generated from published equations plus raw data; Snowdon ratio CF"},"evidence":[{"field":"expression","quote":"ln(Y) = lnβ0 + β1ln(d) + ε (3)","locator":"Eq. 3, revised manuscript l. 322"},{"field":"fit.cf","quote":"a correction factor (CF) was calculated from the mean of the pseudo-observations divided by the mean of the values predicted by the regional equation (Snowden, 1991)","locator":"Methods, revised manuscript ll. 343–346"},{"field":"expression","quote":"Pinus sylvestris | Aboveground | 3 | -2.1575 | 2.3097 | CF 1.11870669937239 | N 495","locator":"Appendix A, worksheet Table A.5, row 424"},{"field":"fit.dbh_min_cm","quote":"d range (cm) 1 / … / 71 (min / mean / max)","locator":"Appendix A, Table A.5, row 424, column AU"}],"check":[{"inputs":{"D":30},"expected":333.759,"origin":"computed","note":"computed from the published form (with CF) at d = 30 cm"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Y in kg per tree, d in cm at 1.3 m (manuscript l. 316). Printed intercept is ln(β0). CF (1.118707) multiplies the back-transformed prediction and is applied in both forms. N = 495 is the number of pseudo-observations plus raw observations, not trees. The same worksheet also gives versions with age, basal area, stand density and climate terms (Eqs. 4–21)."},{"id":"forrester-2017-populus","source":"forrester-2017","name":"European general equation, Populus, aboveground, diameter only (Eq. 3)","output":{"quantity":"agb"},"expression":"1.123002 * exp(-2.311 + 2.3538 * ln(D))","published":{"expression":"1.123002 * exp(-2.311 + 2.3538 * ln(d))","units":{"d":"cm"},"variables":{"d":"D"},"output_unit":"kg"},"taxon":{"level":"genus","name":"Populus","family":"Salicaceae","group":"broadleaf"},"region":{"scope":"continental","countries":[],"place":"Europe (latitude min/mean/max 44.5 / 57.4 / 61 °N)","biomes":["temperate","boreal"]},"stand":"mixed","fit":{"dbh_min_cm":0.1,"dbh_max_cm":44.7,"r2":0.991,"cf":1.123002,"method":"Mixed-effects regression of ln(Y) on ln(d) (source as random effect) on 198 pseudo-observations generated from published equations plus raw data; Snowdon ratio CF"},"evidence":[{"field":"expression","quote":"ln(Y) = lnβ0 + β1ln(d) + ε (3)","locator":"Eq. 3, revised manuscript l. 322"},{"field":"fit.cf","quote":"a correction factor (CF) was calculated from the mean of the pseudo-observations divided by the mean of the values predicted by the regional equation (Snowden, 1991)","locator":"Methods, revised manuscript ll. 343–346"},{"field":"expression","quote":"Populus | Aboveground | 3 | -2.311 | 2.3538 | CF 1.12300232063444 | N 198","locator":"Appendix A, worksheet Table A.5, row 459"},{"field":"fit.dbh_min_cm","quote":"d range (cm) 0.1 / … / 44.7 (min / mean / max)","locator":"Appendix A, Table A.5, row 459, column AU"}],"check":[{"inputs":{"D":30},"expected":333.8674,"origin":"computed","note":"computed from the published form (with CF) at d = 30 cm"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Y in kg per tree, d in cm at 1.3 m (manuscript l. 316). Printed intercept is ln(β0). CF (1.123002) multiplies the back-transformed prediction and is applied in both forms. N = 198 is the number of pseudo-observations plus raw observations, not trees. The same worksheet also gives versions with age, basal area, stand density and climate terms (Eqs. 4–21)."},{"id":"gaui-2024-general-model1","source":"gaui-2024","name":"All three forest types, Rio de Janeiro (local-generic), DBH only (Husch, Model 1)","output":{"quantity":"agb","excludes":["foliage"]},"expression":"1000 * 0.000545 * D^1.9435","published":{"expression":"0.000545 * DBH^1.9435","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"Mg"},"taxon":{"level":"mixed","name":"Mixed Atlantic Forest trees (rainforest, semideciduous, restinga)","group":"broadleaf"},"region":{"scope":"regional","countries":["BR"],"place":"Rio de Janeiro state, Atlantic Forest Domain","biomes":["tropical","subtropical"]},"stand":"natural","fit":{"n_trees":172,"r2":0.92,"method":"non-linear regression, generalised least squares with varPower variance"},"evidence":[{"field":"expression","quote":"Model 1 (Husch) General: B0 5.45 × 10−4, B1 1.9435","locator":"Table 2 (model forms in Table 1)"},{"field":"fit.n_trees","quote":"172 trees","locator":"Section 2.3"}],"check":[{"inputs":{"D":15},"expected":105.228,"origin":"computed","note":"hand-computed from the published form (Mg x 1000 = kg)"},{"inputs":{"D":40},"expected":707.946,"origin":"computed","note":"hand-computed from the published form (Mg x 1000 = kg)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2 gives coefficients only; the model forms are from Table 1 (Husch y = B0 d^B1; Spurr y = B0 + B1 (d2 h); Schumacher and Hall y = B0 d^B1 h^B2), fitted by non-linear GLS with a varPower variance function. Output unit Mg is from the Figure 2 caption (AGB, Mg); the table itself does not state it, and 1000 x converts to kg. AGB was built from non-destructively measured wood volume (stem and branches) times basic wood density, so foliage is excluded. Coefficients are rounded as printed. Fit r2 is the printed Ryy (correlation of real and estimated values). DBH range of the 172 sample trees not stated."},{"id":"gaui-2024-general-model2","source":"gaui-2024","name":"All three forest types, Rio de Janeiro (local-generic), DBH and height (Spurr, Model 2)","output":{"quantity":"agb","excludes":["foliage"]},"expression":"1000 * (0.0736 + 1.74e-05 * D^2 * H)","published":{"expression":"0.0736 + 1.74e-05 * DBH^2 * Ht","units":{"DBH":"cm","Ht":"m"},"variables":{"DBH":"D","Ht":"H"},"output_unit":"Mg"},"taxon":{"level":"mixed","name":"Mixed Atlantic Forest trees (rainforest, semideciduous, restinga)","group":"broadleaf"},"region":{"scope":"regional","countries":["BR"],"place":"Rio de Janeiro state, Atlantic Forest Domain","biomes":["tropical","subtropical"]},"stand":"natural","fit":{"n_trees":172,"r2":0.92,"method":"non-linear regression, generalised least squares with varPower variance"},"evidence":[{"field":"expression","quote":"Model 2 (Spurr) General: B0 0.0736, B1 1.74 × 10−5","locator":"Table 2 (model forms in Table 1)"},{"field":"fit.n_trees","quote":"172 trees","locator":"Section 2.3"}],"check":[{"inputs":{"D":15,"H":12},"expected":120.58,"origin":"computed","note":"hand-computed from the published form (Mg x 1000 = kg)"},{"inputs":{"D":40,"H":22},"expected":686.08,"origin":"computed","note":"hand-computed from the published form (Mg x 1000 = kg)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2 gives coefficients only; the model forms are from Table 1 (Husch y = B0 d^B1; Spurr y = B0 + B1 (d2 h); Schumacher and Hall y = B0 d^B1 h^B2), fitted by non-linear GLS with a varPower variance function. Output unit Mg is from the Figure 2 caption (AGB, Mg); the table itself does not state it, and 1000 x converts to kg. AGB was built from non-destructively measured wood volume (stem and branches) times basic wood density, so foliage is excluded. Coefficients are rounded as printed. Fit r2 is the printed Ryy (correlation of real and estimated values). DBH range of the 172 sample trees not stated."},{"id":"gaui-2024-general-model3","source":"gaui-2024","name":"All three forest types, Rio de Janeiro (local-generic), DBH and height (Schumacher and Hall, Model 3)","output":{"quantity":"agb","excludes":["foliage"]},"expression":"1000 * 0.0002 * D^1.519 * H^0.8251","published":{"expression":"0.0002 * DBH^1.519 * Ht^0.8251","units":{"DBH":"cm","Ht":"m"},"variables":{"DBH":"D","Ht":"H"},"output_unit":"Mg"},"taxon":{"level":"mixed","name":"Mixed Atlantic Forest trees (rainforest, semideciduous, restinga)","group":"broadleaf"},"region":{"scope":"regional","countries":["BR"],"place":"Rio de Janeiro state, Atlantic Forest Domain","biomes":["tropical","subtropical"]},"stand":"natural","fit":{"n_trees":172,"r2":0.92,"method":"non-linear regression, generalised least squares with varPower variance"},"evidence":[{"field":"expression","quote":"Model 3 (Schumacher and Hall) General: B0 2 × 10−4, B1 1.519, B2 0.8251","locator":"Table 2 (model forms in Table 1)"},{"field":"fit.n_trees","quote":"172 trees","locator":"Section 2.3"}],"check":[{"inputs":{"D":15,"H":12},"expected":95.0485,"origin":"computed","note":"hand-computed from the published form (Mg x 1000 = kg)"},{"inputs":{"D":40,"H":22},"expected":695.332,"origin":"computed","note":"hand-computed from the published form (Mg x 1000 = kg)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2 gives coefficients only; the model forms are from Table 1 (Husch y = B0 d^B1; Spurr y = B0 + B1 (d2 h); Schumacher and Hall y = B0 d^B1 h^B2), fitted by non-linear GLS with a varPower variance function. Output unit Mg is from the Figure 2 caption (AGB, Mg); the table itself does not state it, and 1000 x converts to kg. AGB was built from non-destructively measured wood volume (stem and branches) times basic wood density, so foliage is excluded. Coefficients are rounded as printed. Fit r2 is the printed Ryy (correlation of real and estimated values). DBH range of the 172 sample trees not stated. Authors judged Model 3 best for this data set."},{"id":"gaui-2024-raf-model1","source":"gaui-2024","name":"Rainforest, Rio de Janeiro, DBH only (Husch, Model 1)","output":{"quantity":"agb","excludes":["foliage"]},"expression":"1000 * 0.00072 * D^1.8586","published":{"expression":"0.00072 * DBH^1.8586","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"Mg"},"taxon":{"level":"mixed","name":"Mixed rainforest trees","group":"broadleaf"},"region":{"scope":"regional","countries":["BR"],"place":"Rio de Janeiro state, Atlantic Forest Domain","biomes":["tropical","subtropical"]},"stand":"natural","fit":{"n_trees":78,"r2":0.89,"method":"non-linear regression, generalised least squares with varPower variance"},"evidence":[{"field":"expression","quote":"Model 1 (Husch) RAF: B0 7.2 × 10−4, B1 1.8586","locator":"Table 2 (model forms in Table 1)"},{"field":"fit.n_trees","quote":"78 trees belonged to RAF","locator":"Section 2.3"}],"check":[{"inputs":{"D":15},"expected":110.463,"origin":"computed","note":"hand-computed from the published form (Mg x 1000 = kg)"},{"inputs":{"D":40},"expected":683.788,"origin":"computed","note":"hand-computed from the published form (Mg x 1000 = kg)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2 gives coefficients only; the model forms are from Table 1 (Husch y = B0 d^B1; Spurr y = B0 + B1 (d2 h); Schumacher and Hall y = B0 d^B1 h^B2), fitted by non-linear GLS with a varPower variance function. Output unit Mg is from the Figure 2 caption (AGB, Mg); the table itself does not state it, and 1000 x converts to kg. AGB was built from non-destructively measured wood volume (stem and branches) times basic wood density, so foliage is excluded. Coefficients are rounded as printed. Fit r2 is the printed Ryy (correlation of real and estimated values). DBH range of the 172 sample trees not stated."},{"id":"gaui-2024-raf-model2","source":"gaui-2024","name":"Rainforest, Rio de Janeiro, DBH and height (Spurr, Model 2)","output":{"quantity":"agb","excludes":["foliage"]},"expression":"1000 * (0.0787 + 1.63e-05 * D^2 * H)","published":{"expression":"0.0787 + 1.63e-05 * DBH^2 * Ht","units":{"DBH":"cm","Ht":"m"},"variables":{"DBH":"D","Ht":"H"},"output_unit":"Mg"},"taxon":{"level":"mixed","name":"Mixed rainforest trees","group":"broadleaf"},"region":{"scope":"regional","countries":["BR"],"place":"Rio de Janeiro state, Atlantic Forest Domain","biomes":["tropical","subtropical"]},"stand":"natural","fit":{"n_trees":78,"r2":0.91,"method":"non-linear regression, generalised least squares with varPower variance"},"evidence":[{"field":"expression","quote":"Model 2 (Spurr) RAF: B0 0.0787, B1 1.63 × 10−5","locator":"Table 2 (model forms in Table 1)"},{"field":"fit.n_trees","quote":"78 trees belonged to RAF","locator":"Section 2.3"}],"check":[{"inputs":{"D":15,"H":12},"expected":122.71,"origin":"computed","note":"hand-computed from the published form (Mg x 1000 = kg)"},{"inputs":{"D":40,"H":22},"expected":652.46,"origin":"computed","note":"hand-computed from the published form (Mg x 1000 = kg)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2 gives coefficients only; the model forms are from Table 1 (Husch y = B0 d^B1; Spurr y = B0 + B1 (d2 h); Schumacher and Hall y = B0 d^B1 h^B2), fitted by non-linear GLS with a varPower variance function. Output unit Mg is from the Figure 2 caption (AGB, Mg); the table itself does not state it, and 1000 x converts to kg. AGB was built from non-destructively measured wood volume (stem and branches) times basic wood density, so foliage is excluded. Coefficients are rounded as printed. Fit r2 is the printed Ryy (correlation of real and estimated values). DBH range of the 172 sample trees not stated."},{"id":"gaui-2024-raf-model3","source":"gaui-2024","name":"Rainforest, Rio de Janeiro, DBH and height (Schumacher and Hall, Model 3)","output":{"quantity":"agb","excludes":["foliage"]},"expression":"1000 * 0.000152 * D^1.465 * H^0.9627","published":{"expression":"0.000152 * DBH^1.465 * Ht^0.9627","units":{"DBH":"cm","Ht":"m"},"variables":{"DBH":"D","Ht":"H"},"output_unit":"Mg"},"taxon":{"level":"mixed","name":"Mixed rainforest trees","group":"broadleaf"},"region":{"scope":"regional","countries":["BR"],"place":"Rio de Janeiro state, Atlantic Forest Domain","biomes":["tropical","subtropical"]},"stand":"natural","fit":{"n_trees":78,"r2":0.91,"method":"non-linear regression, generalised least squares with varPower variance"},"evidence":[{"field":"expression","quote":"Model 3 (Schumacher and Hall) RAF: B0 1.52 × 10−4, B1 1.465, B2 0.9627","locator":"Table 2 (model forms in Table 1)"},{"field":"fit.n_trees","quote":"78 trees belonged to RAF","locator":"Section 2.3"}],"check":[{"inputs":{"D":15,"H":12},"expected":87.8507,"origin":"computed","note":"hand-computed from the published form (Mg x 1000 = kg)"},{"inputs":{"D":40,"H":22},"expected":662.54,"origin":"computed","note":"hand-computed from the published form (Mg x 1000 = kg)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2 gives coefficients only; the model forms are from Table 1 (Husch y = B0 d^B1; Spurr y = B0 + B1 (d2 h); Schumacher and Hall y = B0 d^B1 h^B2), fitted by non-linear GLS with a varPower variance function. Output unit Mg is from the Figure 2 caption (AGB, Mg); the table itself does not state it, and 1000 x converts to kg. AGB was built from non-destructively measured wood volume (stem and branches) times basic wood density, so foliage is excluded. Coefficients are rounded as printed. Fit r2 is the printed Ryy (correlation of real and estimated values). DBH range of the 172 sample trees not stated. Authors judged Model 3 best for this data set."},{"id":"gaui-2024-rf-model2","source":"gaui-2024","name":"Restinga forest, Rio de Janeiro, DBH and height (Spurr, Model 2)","output":{"quantity":"agb","excludes":["foliage"]},"expression":"1000 * (0.05 + 1.83e-05 * D^2 * H)","published":{"expression":"0.05 + 1.83e-05 * DBH^2 * Ht","units":{"DBH":"cm","Ht":"m"},"variables":{"DBH":"D","Ht":"H"},"output_unit":"Mg"},"taxon":{"level":"mixed","name":"Mixed restinga forest trees","group":"broadleaf"},"region":{"scope":"regional","countries":["BR"],"place":"Rio de Janeiro state, Atlantic Forest Domain","biomes":["tropical","subtropical"]},"stand":"natural","fit":{"n_trees":37,"r2":0.8,"method":"non-linear regression, generalised least squares with varPower variance"},"evidence":[{"field":"expression","quote":"Model 2 (Spurr) RF: B0 0.05, B1 1.83 × 10−5","locator":"Table 2 (model forms in Table 1)"},{"field":"fit.n_trees","quote":"37 to RF","locator":"Section 2.3"}],"check":[{"inputs":{"D":15,"H":12},"expected":99.41,"origin":"computed","note":"hand-computed from the published form (Mg x 1000 = kg)"},{"inputs":{"D":40,"H":22},"expected":694.16,"origin":"computed","note":"hand-computed from the published form (Mg x 1000 = kg)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2 gives coefficients only; the model forms are from Table 1 (Husch y = B0 d^B1; Spurr y = B0 + B1 (d2 h); Schumacher and Hall y = B0 d^B1 h^B2), fitted by non-linear GLS with a varPower variance function. Output unit Mg is from the Figure 2 caption (AGB, Mg); the table itself does not state it, and 1000 x converts to kg. AGB was built from non-destructively measured wood volume (stem and branches) times basic wood density, so foliage is excluded. Coefficients are rounded as printed. Fit r2 is the printed Ryy (correlation of real and estimated values). DBH range of the 172 sample trees not stated. Authors chose the Spurr model for restinga because Model 3 coefficients were not significant and the Model 1 B0 was not significant; only Model 2 added."},{"id":"gaui-2024-sf-model1","source":"gaui-2024","name":"Semideciduous forest, Rio de Janeiro, DBH only (Husch, Model 1)","output":{"quantity":"agb","excludes":["foliage"]},"expression":"1000 * 0.000461 * D^2.0109","published":{"expression":"0.000461 * DBH^2.0109","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"Mg"},"taxon":{"level":"mixed","name":"Mixed semideciduous forest trees","group":"broadleaf"},"region":{"scope":"regional","countries":["BR"],"place":"Rio de Janeiro state, Atlantic Forest Domain","biomes":["tropical","subtropical"]},"stand":"natural","fit":{"n_trees":57,"r2":0.93,"method":"non-linear regression, generalised least squares with varPower variance"},"evidence":[{"field":"expression","quote":"Model 1 (Husch) SF: B0 4.61 × 10−4, B1 2.0109","locator":"Table 2 (model forms in Table 1)"},{"field":"fit.n_trees","quote":"57 to SF","locator":"Section 2.3"}],"check":[{"inputs":{"D":15},"expected":106.832,"origin":"computed","note":"hand-computed from the published form (Mg x 1000 = kg)"},{"inputs":{"D":40},"expected":767.862,"origin":"computed","note":"hand-computed from the published form (Mg x 1000 = kg)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2 gives coefficients only; the model forms are from Table 1 (Husch y = B0 d^B1; Spurr y = B0 + B1 (d2 h); Schumacher and Hall y = B0 d^B1 h^B2), fitted by non-linear GLS with a varPower variance function. Output unit Mg is from the Figure 2 caption (AGB, Mg); the table itself does not state it, and 1000 x converts to kg. AGB was built from non-destructively measured wood volume (stem and branches) times basic wood density, so foliage is excluded. Coefficients are rounded as printed. Fit r2 is the printed Ryy (correlation of real and estimated values). DBH range of the 172 sample trees not stated."},{"id":"gaui-2024-sf-model2","source":"gaui-2024","name":"Semideciduous forest, Rio de Janeiro, DBH and height (Spurr, Model 2)","output":{"quantity":"agb","excludes":["foliage"]},"expression":"1000 * (0.0834 + 1.85e-05 * D^2 * H)","published":{"expression":"0.0834 + 1.85e-05 * DBH^2 * Ht","units":{"DBH":"cm","Ht":"m"},"variables":{"DBH":"D","Ht":"H"},"output_unit":"Mg"},"taxon":{"level":"mixed","name":"Mixed semideciduous forest trees","group":"broadleaf"},"region":{"scope":"regional","countries":["BR"],"place":"Rio de Janeiro state, Atlantic Forest Domain","biomes":["tropical","subtropical"]},"stand":"natural","fit":{"n_trees":57,"r2":0.96,"method":"non-linear regression, generalised least squares with varPower variance"},"evidence":[{"field":"expression","quote":"Model 2 (Spurr) SF: B0 0.0834, B1 1.85 × 10−5","locator":"Table 2 (model forms in Table 1)"},{"field":"fit.n_trees","quote":"57 to SF","locator":"Section 2.3"}],"check":[{"inputs":{"D":15,"H":12},"expected":133.35,"origin":"computed","note":"hand-computed from the published form (Mg x 1000 = kg)"},{"inputs":{"D":40,"H":22},"expected":734.6,"origin":"computed","note":"hand-computed from the published form (Mg x 1000 = kg)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2 gives coefficients only; the model forms are from Table 1 (Husch y = B0 d^B1; Spurr y = B0 + B1 (d2 h); Schumacher and Hall y = B0 d^B1 h^B2), fitted by non-linear GLS with a varPower variance function. Output unit Mg is from the Figure 2 caption (AGB, Mg); the table itself does not state it, and 1000 x converts to kg. AGB was built from non-destructively measured wood volume (stem and branches) times basic wood density, so foliage is excluded. Coefficients are rounded as printed. Fit r2 is the printed Ryy (correlation of real and estimated values). DBH range of the 172 sample trees not stated."},{"id":"gaui-2024-sf-model3","source":"gaui-2024","name":"Semideciduous forest, Rio de Janeiro, DBH and height (Schumacher and Hall, Model 3)","output":{"quantity":"agb","excludes":["foliage"]},"expression":"1000 * 0.0003 * D^1.6954 * H^0.5059","published":{"expression":"0.0003 * DBH^1.6954 * Ht^0.5059","units":{"DBH":"cm","Ht":"m"},"variables":{"DBH":"D","Ht":"H"},"output_unit":"Mg"},"taxon":{"level":"mixed","name":"Mixed semideciduous forest trees","group":"broadleaf"},"region":{"scope":"regional","countries":["BR"],"place":"Rio de Janeiro state, Atlantic Forest Domain","biomes":["tropical","subtropical"]},"stand":"natural","fit":{"n_trees":57,"r2":0.95,"method":"non-linear regression, generalised least squares with varPower variance"},"evidence":[{"field":"expression","quote":"Model 3 (Schumacher and Hall) SF: B0 3 × 10−4, B1 1.6954, B2 0.5059","locator":"Table 2 (model forms in Table 1)"},{"field":"fit.n_trees","quote":"57 to SF","locator":"Section 2.3"}],"check":[{"inputs":{"D":15,"H":12},"expected":103.998,"origin":"computed","note":"hand-computed from the published form (Mg x 1000 = kg)"},{"inputs":{"D":40,"H":22},"expected":745.393,"origin":"computed","note":"hand-computed from the published form (Mg x 1000 = kg)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2 gives coefficients only; the model forms are from Table 1 (Husch y = B0 d^B1; Spurr y = B0 + B1 (d2 h); Schumacher and Hall y = B0 d^B1 h^B2), fitted by non-linear GLS with a varPower variance function. Output unit Mg is from the Figure 2 caption (AGB, Mg); the table itself does not state it, and 1000 x converts to kg. AGB was built from non-destructively measured wood volume (stem and branches) times basic wood density, so foliage is excluded. Coefficients are rounded as printed. Fit r2 is the printed Ryy (correlation of real and estimated values). DBH range of the 172 sample trees not stated. Authors judged Model 3 best for this data set."},{"id":"giraldo-salazar-2025-alnus","source":"giraldo-salazar-2025","name":"Alnus acuminata AGB, DBH only (13-year restoration plantation)","output":{"quantity":"agb"},"expression":"1.029 * exp(-2.361 + 2.371*ln(D))","published":{"expression":"1.029 * exp(-2.361 + 2.371*ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Alnus acuminata","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"site","countries":["CO"],"place":"Más Bosques para Medellín mixed restoration plantations, Aburrá valley, Medellín","biomes":["tropical","montane"]},"stand":"plantation","fit":{"n_trees":23,"dbh_min_cm":6.4,"dbh_max_cm":29.6,"h_min_m":7.3,"h_max_m":19.85,"r2":0.939,"rse":0.25,"cf":1.029,"method":"ln-ln linear regression (R 4.3.2), back-transformed with e^(RSE^2/2)"},"evidence":[{"field":"expression","quote":"AGB = 0.097 × D^2.371","locator":"Table 7, equation 15"},{"field":"expression","quote":"ln(AGB) = −2.361 + 2.371 ln(D)","locator":"Table 7, equation 15 (linear expression)"},{"field":"fit.cf","quote":"e^(RSE²/2) = 1.029","locator":"Table 7, equation 15"},{"field":"fit.n_trees","quote":"23","locator":"Table 7 / Table 2"}],"check":[{"inputs":{"D":8},"expected":13.436,"origin":"computed","note":"computed from the published form (linear expression with printed correction factor)"},{"inputs":{"D":15},"expected":59.643,"origin":"computed","note":"computed from the published form (linear expression with printed correction factor)"},{"inputs":{"D":25},"expected":200.25,"origin":"computed","note":"computed from the published form (linear expression with printed correction factor)"}],"verification":"original_read","checked_at":"2026-11-02","notes":" Table 7 gives the final equation with the correction factor e^(RSE^2/2) folded into the coefficient a; here the published form is written from the linear expression in Table 7 with the printed correction factor applied, which agrees with the printed a. Dry mass in kg, D in cm, WD in g/cm3. Trees harvested 2022-2023 in 13-year-old plantations; AGB sums leaves, twigs, branches and trunk. Ranges are for the sampled trees (Table 2). RSE is as printed in Table 5/6."},{"id":"giraldo-salazar-2025-citharexylum","source":"giraldo-salazar-2025","name":"Citharexylum subflavescens AGB, DBH only (13-year restoration plantation)","output":{"quantity":"agb"},"expression":"1.014 * exp(-2.309 + 2.344*ln(D))","published":{"expression":"1.014 * exp(-2.309 + 2.344*ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Citharexylum subflavescens","family":"Verbenaceae","group":"broadleaf"},"region":{"scope":"site","countries":["CO"],"place":"Más Bosques para Medellín mixed restoration plantations, Aburrá valley, Medellín","biomes":["tropical","montane"]},"stand":"plantation","fit":{"n_trees":20,"dbh_min_cm":5.35,"dbh_max_cm":28.3,"h_min_m":5.08,"h_max_m":18.26,"r2":0.982,"rse":0.178,"cf":1.014,"method":"ln-ln linear regression (R 4.3.2), back-transformed with e^(RSE^2/2)"},"evidence":[{"field":"expression","quote":"AGB = 0.101 × D^2.344","locator":"Table 7, equation 16"},{"field":"expression","quote":"ln(AGB) = −2.309 + 2.344 ln(D)","locator":"Table 7, equation 16 (linear expression)"},{"field":"fit.cf","quote":"e^(RSE²/2) = 1.014","locator":"Table 7, equation 16"},{"field":"fit.n_trees","quote":"20","locator":"Table 7 / Table 2"}],"check":[{"inputs":{"D":8},"expected":13.185,"origin":"computed","note":"computed from the published form (linear expression with printed correction factor)"},{"inputs":{"D":15},"expected":57.545,"origin":"computed","note":"computed from the published form (linear expression with printed correction factor)"},{"inputs":{"D":25},"expected":190.56,"origin":"computed","note":"computed from the published form (linear expression with printed correction factor)"}],"verification":"original_read","checked_at":"2026-11-02","notes":" Table 7 gives the final equation with the correction factor e^(RSE^2/2) folded into the coefficient a; here the published form is written from the linear expression in Table 7 with the printed correction factor applied, which agrees with the printed a. Dry mass in kg, D in cm, WD in g/cm3. Trees harvested 2022-2023 in 13-year-old plantations; AGB sums leaves, twigs, branches and trunk. Ranges are for the sampled trees (Table 2). RSE is as printed in Table 5/6."},{"id":"giraldo-salazar-2025-croton","source":"giraldo-salazar-2025","name":"Croton magdalenensis AGB, DBH and height (13-year restoration plantation)","output":{"quantity":"agb"},"expression":"1.043 * exp(-4.245 + 1.059*ln(D^2*H))","published":{"expression":"1.043 * exp(-4.245 + 1.059*ln(DBH^2*H))","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Croton magdalenensis","family":"Euphorbiaceae","group":"broadleaf"},"region":{"scope":"site","countries":["CO"],"place":"Más Bosques para Medellín mixed restoration plantations, Aburrá valley, Medellín","biomes":["tropical","montane"]},"stand":"plantation","fit":{"n_trees":23,"dbh_min_cm":6.85,"dbh_max_cm":32.45,"h_min_m":8.4,"h_max_m":15.9,"r2":0.919,"rse":0.302,"cf":1.043,"method":"ln-ln linear regression (R 4.3.2), back-transformed with e^(RSE^2/2)"},"evidence":[{"field":"expression","quote":"AGB = 0.015 × (D^2 × H)^1.059","locator":"Table 7, equation 17"},{"field":"expression","quote":"ln(B) = −4.245 + 1.059 ln(D² × H)","locator":"Table 7, equation 17 (linear expression)"},{"field":"fit.cf","quote":"e^(RSE²/2) = 1.043","locator":"Table 7, equation 17"},{"field":"fit.n_trees","quote":"23","locator":"Table 7 / Table 2"}],"check":[{"inputs":{"D":8,"H":8},"expected":11.062,"origin":"computed","note":"computed from the published form (linear expression with printed correction factor)"},{"inputs":{"D":15,"H":12},"expected":64.346,"origin":"computed","note":"computed from the published form (linear expression with printed correction factor)"},{"inputs":{"D":25,"H":16},"expected":257.46,"origin":"computed","note":"computed from the published form (linear expression with printed correction factor)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 7 prints the linear form as ln(B), meaning AGB. Table 7 gives the final equation with the correction factor e^(RSE^2/2) folded into the coefficient a; here the published form is written from the linear expression in Table 7 with the printed correction factor applied, which agrees with the printed a. Dry mass in kg, D in cm, WD in g/cm3. Trees harvested 2022-2023 in 13-year-old plantations; AGB sums leaves, twigs, branches and trunk. Ranges are for the sampled trees (Table 2). RSE is as printed in Table 5/6."},{"id":"giraldo-salazar-2025-general","source":"giraldo-salazar-2025","name":"Mixed Andean restoration plantation AGB from DBH and wood density (general)","output":{"quantity":"agb"},"expression":"1.052 * exp(-1.152 + 2.379*ln(D) + 1.098*ln(rho))","published":{"expression":"1.052 * exp(-1.152 + 2.379*ln(DBH) + 1.098*ln(WD))","units":{"DBH":"cm","WD":"g/cm3"},"variables":{"DBH":"D","WD":"rho"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Mixed native species in restoration plantations (16 species, six main)","group":"broadleaf"},"region":{"scope":"site","countries":["CO"],"place":"Más Bosques para Medellín mixed restoration plantations, Aburrá valley, Medellín","biomes":["tropical","montane"]},"stand":"plantation","fit":{"n_trees":144,"dbh_min_cm":2.2,"dbh_max_cm":32.45,"h_min_m":3.57,"h_max_m":19.85,"r2":0.928,"rse":0.322,"cf":1.052,"method":"ln-ln linear regression (R 4.3.2), back-transformed with e^(RSE^2/2)"},"evidence":[{"field":"expression","quote":"AGB = 0.333 × D^2.379 × WD^1.098","locator":"Table 7, equation 14"},{"field":"expression","quote":"ln(AGB) = −1.152 + 2.379 ln(D) + 1.098 ln(WD) (R2 0.928; correction 1.052; n 144)","locator":"Table 7, equation 14 (linear expression)"},{"field":"fit.cf","quote":"e^(RSE²/2) = 1.052","locator":"Table 7, equation 14"},{"field":"fit.n_trees","quote":"144","locator":"Table 7 / Table 2"}],"check":[{"inputs":{"D":10,"rho":0.3},"expected":21.212,"origin":"computed","note":"computed from the published form (linear expression with printed correction factor)"},{"inputs":{"D":20,"rho":0.4},"expected":151.33,"origin":"computed","note":"computed from the published form (linear expression with printed correction factor)"},{"inputs":{"D":30,"rho":0.55},"expected":563.25,"origin":"computed","note":"computed from the published form (linear expression with printed correction factor)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Selected general equation of the project (Eq. 14 in the text, Table 7 code 14). Wood density range of the 144 trees 0.239-0.640 g/cm3. Table 7 gives the final equation with the correction factor e^(RSE^2/2) folded into the coefficient a; here the published form is written from the linear expression in Table 7 with the printed correction factor applied, which agrees with the printed a. Dry mass in kg, D in cm, WD in g/cm3. Trees harvested 2022-2023 in 13-year-old plantations; AGB sums leaves, twigs, branches and trunk. Ranges are for the sampled trees (Table 2). RSE is as printed in Table 5/6."},{"id":"giraldo-salazar-2025-montanoa","source":"giraldo-salazar-2025","name":"Montanoa quadrangularis AGB, DBH and height (13-year restoration plantation)","output":{"quantity":"agb"},"expression":"1.037 * exp(-5.242 + 1.137*ln(D^2*H))","published":{"expression":"1.037 * exp(-5.242 + 1.137*ln(DBH^2*H))","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Montanoa quadrangularis","family":"Asteraceae","group":"broadleaf"},"region":{"scope":"site","countries":["CO"],"place":"Más Bosques para Medellín mixed restoration plantations, Aburrá valley, Medellín","biomes":["tropical","montane"]},"stand":"plantation","fit":{"n_trees":20,"dbh_min_cm":5.8,"dbh_max_cm":22.35,"h_min_m":6.65,"h_max_m":17.24,"r2":0.937,"rse":0.285,"cf":1.037,"method":"ln-ln linear regression (R 4.3.2), back-transformed with e^(RSE^2/2)"},"evidence":[{"field":"expression","quote":"AGB = 0.005 × (D^2 × H)^1.137","locator":"Table 7, equation 18"},{"field":"expression","quote":"ln(B) = −5.242 + 1.137 ln(D² × H)","locator":"Table 7, equation 18 (linear expression)"},{"field":"fit.cf","quote":"e^(RSE²/2) = 1.037","locator":"Table 7, equation 18"},{"field":"fit.n_trees","quote":"20","locator":"Table 7 / Table 2"}],"check":[{"inputs":{"D":8,"H":8},"expected":6.6016,"origin":"computed","note":"computed from the published form (linear expression with printed correction factor)"},{"inputs":{"D":15,"H":12},"expected":43.719,"origin":"computed","note":"computed from the published form (linear expression with printed correction factor)"},{"inputs":{"D":25,"H":16},"expected":193.73,"origin":"computed","note":"computed from the published form (linear expression with printed correction factor)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 7 rounds the multiplier to 0.005 (the unrounded value of exp(-5.242)*1.037 is about 0.0055), so the form is written from the linear expression, not from the printed 0.005. Table 7 gives the final equation with the correction factor e^(RSE^2/2) folded into the coefficient a; here the published form is written from the linear expression in Table 7 with the printed correction factor applied, which agrees with the printed a. Dry mass in kg, D in cm, WD in g/cm3. Trees harvested 2022-2023 in 13-year-old plantations; AGB sums leaves, twigs, branches and trunk. Ranges are for the sampled trees (Table 2). RSE is as printed in Table 5/6."},{"id":"giraldo-salazar-2025-quercus","source":"giraldo-salazar-2025","name":"Quercus humboldtii AGB, DBH only (13-year restoration plantation)","output":{"quantity":"agb"},"expression":"1.072 * exp(-1.673 + 2.351*ln(D))","published":{"expression":"1.072 * exp(-1.673 + 2.351*ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus humboldtii","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["CO"],"place":"Más Bosques para Medellín mixed restoration plantations, Aburrá valley, Medellín","biomes":["tropical","montane"]},"stand":"plantation","fit":{"n_trees":20,"dbh_min_cm":4.75,"dbh_max_cm":24.9,"h_min_m":4.92,"h_max_m":16.55,"r2":0.852,"rse":0.394,"cf":1.072,"method":"ln-ln linear regression (R 4.3.2), back-transformed with e^(RSE^2/2)"},"evidence":[{"field":"expression","quote":"AGB = 0.2012 × D^2.351","locator":"Table 7, equation 19"},{"field":"expression","quote":"ln(AGB) = −1.673 + 2.351 ln(D)","locator":"Table 7, equation 19 (linear expression)"},{"field":"fit.cf","quote":"e^(RSE²/2) = 1.072","locator":"Table 7, equation 19"},{"field":"fit.n_trees","quote":"20","locator":"Table 7 / Table 2"}],"check":[{"inputs":{"D":8},"expected":26.717,"origin":"computed","note":"computed from the published form (linear expression with printed correction factor)"},{"inputs":{"D":15},"expected":117.11,"origin":"computed","note":"computed from the published form (linear expression with printed correction factor)"},{"inputs":{"D":25},"expected":389.2,"origin":"computed","note":"computed from the published form (linear expression with printed correction factor)"}],"verification":"original_read","checked_at":"2026-11-02","notes":" Table 7 gives the final equation with the correction factor e^(RSE^2/2) folded into the coefficient a; here the published form is written from the linear expression in Table 7 with the printed correction factor applied, which agrees with the printed a. Dry mass in kg, D in cm, WD in g/cm3. Trees harvested 2022-2023 in 13-year-old plantations; AGB sums leaves, twigs, branches and trunk. Ranges are for the sampled trees (Table 2). RSE is as printed in Table 5/6."},{"id":"giraldo-salazar-2025-retrophyllum","source":"giraldo-salazar-2025","name":"Retrophyllum rospigliosii AGB, DBH only (13-year restoration plantation)","output":{"quantity":"agb"},"expression":"1.032 * exp(-1.945 + 2.194*ln(D))","published":{"expression":"1.032 * exp(-1.945 + 2.194*ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Retrophyllum rospigliosii","family":"Podocarpaceae","group":"conifer"},"region":{"scope":"site","countries":["CO"],"place":"Más Bosques para Medellín mixed restoration plantations, Aburrá valley, Medellín","biomes":["tropical","montane"]},"stand":"plantation","fit":{"n_trees":20,"dbh_min_cm":3.8,"dbh_max_cm":19,"h_min_m":3.98,"h_max_m":11.3,"r2":0.93,"rse":0.263,"cf":1.032,"method":"ln-ln linear regression (R 4.3.2), back-transformed with e^(RSE^2/2)"},"evidence":[{"field":"expression","quote":"AGB = 0.1475 × D^2.194","locator":"Table 7, equation 20"},{"field":"expression","quote":"ln(AGB) = −1.945 + 2.194 ln(D)","locator":"Table 7, equation 20 (linear expression)"},{"field":"fit.cf","quote":"e^(RSE²/2) = 1.032","locator":"Table 7, equation 20"},{"field":"fit.n_trees","quote":"20","locator":"Table 7 / Table 2"}],"check":[{"inputs":{"D":8},"expected":14.137,"origin":"computed","note":"computed from the published form (linear expression with printed correction factor)"},{"inputs":{"D":15},"expected":56.146,"origin":"computed","note":"computed from the published form (linear expression with printed correction factor)"},{"inputs":{"D":25},"expected":172.21,"origin":"computed","note":"computed from the published form (linear expression with printed correction factor)"}],"verification":"original_read","checked_at":"2026-11-02","notes":" Table 7 gives the final equation with the correction factor e^(RSE^2/2) folded into the coefficient a; here the published form is written from the linear expression in Table 7 with the printed correction factor applied, which agrees with the printed a. Dry mass in kg, D in cm, WD in g/cm3. Trees harvested 2022-2023 in 13-year-old plantations; AGB sums leaves, twigs, branches and trunk. Ranges are for the sampled trees (Table 2). RSE is as printed in Table 5/6."},{"id":"giri-2019-betula-alnoides-10-30-d2","source":"giri-2019","name":"B. alnoides stem volume from DBH, 10–30 cm (Table 5)","output":{"quantity":"stem_volume"},"expression":"6.814 * (D/100)^2","published":{"expression":"6.814 * d^2","units":{"d":"m"},"variables":{"d":"D"},"output_unit":"m3"},"taxon":{"level":"species","name":"Betula alnoides","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["IN"],"place":"Meghalaya, NE India (Garo, Khasi, Jaintia Hills and Ri-Bhoi districts)","biomes":["tropical","subtropical"]},"stand":"natural","fit":{"n_trees":25,"dbh_min_cm":10,"dbh_max_cm":30,"method":"Linear regression through the origin (SPSS), non-destructive frustum volumes (Newton's formula)"},"evidence":[{"field":"expression","quote":"V = 6.814*d2","locator":"Table 5, Diameter class 10–30 cm"},{"field":"published.units","quote":"all the parameters were converted into metres, and volume was calculated in cubic metres","locator":"Statistical analysis (Methods)"},{"field":"fit.n_trees","quote":"n = 75, 25 trees for each diameter class","locator":"Table 1 footnote"},{"field":"fit.dbh_min_cm","quote":"All the trees were divided into three diameter classes according to their DBH, viz. 10–30, 31–50 and >50 cm","locator":"Statistical analysis (Methods)"}],"check":[{"inputs":{"D":20},"expected":0.27256,"origin":"computed","note":"computed from the Table 5 coefficient"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Class-specific model: use only for trees in the stated DBH class. Non-destructive: volumes of standing trees were summed from laser-rangefinder frustum measurements (stem volume), not felled. The paper states d and h in metres, so published units use m; canonical form divides D (cm) by 100. Adj. R² and SE are printed per class but not stored (adj. R² is not R²). The class bounds are the sampling classes; the paper gives no measured DBH range. The paper also gives biomass = stem volume x wood specific gravity (not a fitted model, not added)."},{"id":"giri-2019-betula-alnoides-10-30-d2h","source":"giri-2019","name":"B. alnoides stem volume from DBH and height, 10–30 cm (Table 1)","output":{"quantity":"stem_volume"},"expression":"0.365 * (D/100)^2 * H","published":{"expression":"0.365 * d^2 * h","units":{"d":"m","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"m3"},"taxon":{"level":"species","name":"Betula alnoides","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["IN"],"place":"Meghalaya, NE India (Garo, Khasi, Jaintia Hills and Ri-Bhoi districts)","biomes":["tropical","subtropical"]},"stand":"natural","fit":{"n_trees":25,"dbh_min_cm":10,"dbh_max_cm":30,"method":"Linear regression through the origin (SPSS), non-destructive frustum volumes (Newton's formula)"},"evidence":[{"field":"expression","quote":"V = 0.365*d2*h","locator":"Table 1, Diameter class 10–30 cm"},{"field":"published.units","quote":"all the parameters were converted into metres, and volume was calculated in cubic metres","locator":"Statistical analysis (Methods)"},{"field":"fit.n_trees","quote":"n = 75, 25 trees for each diameter class","locator":"Table 1 footnote"},{"field":"fit.dbh_min_cm","quote":"All the trees were divided into three diameter classes according to their DBH, viz. 10–30, 31–50 and >50 cm","locator":"Statistical analysis (Methods)"}],"check":[{"inputs":{"D":20,"H":18},"expected":0.2628,"origin":"computed","note":"computed from the Table 1 coefficient"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Class-specific model: use only for trees in the stated DBH class. Non-destructive: volumes of standing trees were summed from laser-rangefinder frustum measurements (stem volume), not felled. The paper states d and h in metres, so published units use m; canonical form divides D (cm) by 100. Adj. R² and SE are printed per class but not stored (adj. R² is not R²). The class bounds are the sampling classes; the paper gives no measured DBH range. The paper also gives biomass = stem volume x wood specific gravity (not a fitted model, not added)."},{"id":"giri-2019-betula-alnoides-31-50-d2","source":"giri-2019","name":"B. alnoides stem volume from DBH, 31–50 cm (Table 5)","output":{"quantity":"stem_volume"},"expression":"6.272 * (D/100)^2","published":{"expression":"6.272 * d^2","units":{"d":"m"},"variables":{"d":"D"},"output_unit":"m3"},"taxon":{"level":"species","name":"Betula alnoides","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["IN"],"place":"Meghalaya, NE India (Garo, Khasi, Jaintia Hills and Ri-Bhoi districts)","biomes":["tropical","subtropical"]},"stand":"natural","fit":{"n_trees":25,"dbh_min_cm":31,"dbh_max_cm":50,"method":"Linear regression through the origin (SPSS), non-destructive frustum volumes (Newton's formula)"},"evidence":[{"field":"expression","quote":"V = 6.272*d2","locator":"Table 5, Diameter class 31–50 cm"},{"field":"published.units","quote":"all the parameters were converted into metres, and volume was calculated in cubic metres","locator":"Statistical analysis (Methods)"},{"field":"fit.n_trees","quote":"n = 75, 25 trees for each diameter class","locator":"Table 1 footnote"},{"field":"fit.dbh_min_cm","quote":"All the trees were divided into three diameter classes according to their DBH, viz. 10–30, 31–50 and >50 cm","locator":"Statistical analysis (Methods)"}],"check":[{"inputs":{"D":40},"expected":1.00352,"origin":"computed","note":"computed from the Table 5 coefficient"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Class-specific model: use only for trees in the stated DBH class. Non-destructive: volumes of standing trees were summed from laser-rangefinder frustum measurements (stem volume), not felled. The paper states d and h in metres, so published units use m; canonical form divides D (cm) by 100. Adj. R² and SE are printed per class but not stored (adj. R² is not R²). The class bounds are the sampling classes; the paper gives no measured DBH range. The paper also gives biomass = stem volume x wood specific gravity (not a fitted model, not added)."},{"id":"giri-2019-betula-alnoides-31-50-d2h","source":"giri-2019","name":"B. alnoides stem volume from DBH and height, 31–50 cm (Table 1)","output":{"quantity":"stem_volume"},"expression":"0.289 * (D/100)^2 * H","published":{"expression":"0.289 * d^2 * h","units":{"d":"m","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"m3"},"taxon":{"level":"species","name":"Betula alnoides","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["IN"],"place":"Meghalaya, NE India (Garo, Khasi, Jaintia Hills and Ri-Bhoi districts)","biomes":["tropical","subtropical"]},"stand":"natural","fit":{"n_trees":25,"dbh_min_cm":31,"dbh_max_cm":50,"method":"Linear regression through the origin (SPSS), non-destructive frustum volumes (Newton's formula)"},"evidence":[{"field":"expression","quote":"V = 0.289*d2*h","locator":"Table 1, Diameter class 31–50 cm"},{"field":"published.units","quote":"all the parameters were converted into metres, and volume was calculated in cubic metres","locator":"Statistical analysis (Methods)"},{"field":"fit.n_trees","quote":"n = 75, 25 trees for each diameter class","locator":"Table 1 footnote"},{"field":"fit.dbh_min_cm","quote":"All the trees were divided into three diameter classes according to their DBH, viz. 10–30, 31–50 and >50 cm","locator":"Statistical analysis (Methods)"}],"check":[{"inputs":{"D":40,"H":18},"expected":0.83232,"origin":"computed","note":"computed from the Table 1 coefficient"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Class-specific model: use only for trees in the stated DBH class. Non-destructive: volumes of standing trees were summed from laser-rangefinder frustum measurements (stem volume), not felled. The paper states d and h in metres, so published units use m; canonical form divides D (cm) by 100. Adj. R² and SE are printed per class but not stored (adj. R² is not R²). The class bounds are the sampling classes; the paper gives no measured DBH range. The paper also gives biomass = stem volume x wood specific gravity (not a fitted model, not added)."},{"id":"giri-2019-betula-alnoides-gt50-d2","source":"giri-2019","name":"B. alnoides stem volume from DBH, >50 cm (Table 5)","output":{"quantity":"stem_volume"},"expression":"6.086 * (D/100)^2","published":{"expression":"6.086 * d^2","units":{"d":"m"},"variables":{"d":"D"},"output_unit":"m3"},"taxon":{"level":"species","name":"Betula alnoides","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["IN"],"place":"Meghalaya, NE India (Garo, Khasi, Jaintia Hills and Ri-Bhoi districts)","biomes":["tropical","subtropical"]},"stand":"natural","fit":{"n_trees":25,"dbh_min_cm":50,"method":"Linear regression through the origin (SPSS), non-destructive frustum volumes (Newton's formula)"},"evidence":[{"field":"expression","quote":"V = 6.086*d2","locator":"Table 5, Diameter class >50 cm"},{"field":"published.units","quote":"all the parameters were converted into metres, and volume was calculated in cubic metres","locator":"Statistical analysis (Methods)"},{"field":"fit.n_trees","quote":"n = 75, 25 trees for each diameter class","locator":"Table 1 footnote"},{"field":"fit.dbh_min_cm","quote":"All the trees were divided into three diameter classes according to their DBH, viz. 10–30, 31–50 and >50 cm","locator":"Statistical analysis (Methods)"}],"check":[{"inputs":{"D":60},"expected":2.19096,"origin":"computed","note":"computed from the Table 5 coefficient"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Class-specific model: use only for trees in the stated DBH class. Non-destructive: volumes of standing trees were summed from laser-rangefinder frustum measurements (stem volume), not felled. The paper states d and h in metres, so published units use m; canonical form divides D (cm) by 100. Adj. R² and SE are printed per class but not stored (adj. R² is not R²). The class bounds are the sampling classes; the paper gives no measured DBH range. The paper also gives biomass = stem volume x wood specific gravity (not a fitted model, not added)."},{"id":"giri-2019-betula-alnoides-gt50-d2h","source":"giri-2019","name":"B. alnoides stem volume from DBH and height, >50 cm (Table 1)","output":{"quantity":"stem_volume"},"expression":"0.255 * (D/100)^2 * H","published":{"expression":"0.255 * d^2 * h","units":{"d":"m","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"m3"},"taxon":{"level":"species","name":"Betula alnoides","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["IN"],"place":"Meghalaya, NE India (Garo, Khasi, Jaintia Hills and Ri-Bhoi districts)","biomes":["tropical","subtropical"]},"stand":"natural","fit":{"n_trees":25,"dbh_min_cm":50,"method":"Linear regression through the origin (SPSS), non-destructive frustum volumes (Newton's formula)"},"evidence":[{"field":"expression","quote":"V = 0.255*d2*h","locator":"Table 1, Diameter class >50 cm"},{"field":"published.units","quote":"all the parameters were converted into metres, and volume was calculated in cubic metres","locator":"Statistical analysis (Methods)"},{"field":"fit.n_trees","quote":"n = 75, 25 trees for each diameter class","locator":"Table 1 footnote"},{"field":"fit.dbh_min_cm","quote":"All the trees were divided into three diameter classes according to their DBH, viz. 10–30, 31–50 and >50 cm","locator":"Statistical analysis (Methods)"}],"check":[{"inputs":{"D":60,"H":18},"expected":1.6524,"origin":"computed","note":"computed from the Table 1 coefficient"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Class-specific model: use only for trees in the stated DBH class. Non-destructive: volumes of standing trees were summed from laser-rangefinder frustum measurements (stem volume), not felled. The paper states d and h in metres, so published units use m; canonical form divides D (cm) by 100. Adj. R² and SE are printed per class but not stored (adj. R² is not R²). The class bounds are the sampling classes; the paper gives no measured DBH range. The paper also gives biomass = stem volume x wood specific gravity (not a fitted model, not added)."},{"id":"giri-2019-duabanga-grandiflora-10-30-d2","source":"giri-2019","name":"D. grandiflora stem volume from DBH, 10–30 cm (Table 6)","output":{"quantity":"stem_volume"},"expression":"4.926 * (D/100)^2","published":{"expression":"4.926 * d^2","units":{"d":"m"},"variables":{"d":"D"},"output_unit":"m3"},"taxon":{"level":"species","name":"Duabanga grandiflora","family":"Lythraceae","group":"broadleaf"},"region":{"scope":"regional","countries":["IN"],"place":"Meghalaya, NE India (Garo, Khasi, Jaintia Hills and Ri-Bhoi districts)","biomes":["tropical","subtropical"]},"stand":"natural","fit":{"n_trees":25,"dbh_min_cm":10,"dbh_max_cm":30,"method":"Linear regression through the origin (SPSS), non-destructive frustum volumes (Newton's formula)"},"evidence":[{"field":"expression","quote":"V = 4.926*d2","locator":"Table 6, Diameter class 10–30 cm"},{"field":"published.units","quote":"all the parameters were converted into metres, and volume was calculated in cubic metres","locator":"Statistical analysis (Methods)"},{"field":"fit.n_trees","quote":"n = 75, 25 trees for each diameter class","locator":"Table 1 footnote"},{"field":"fit.dbh_min_cm","quote":"All the trees were divided into three diameter classes according to their DBH, viz. 10–30, 31–50 and >50 cm","locator":"Statistical analysis (Methods)"}],"check":[{"inputs":{"D":20},"expected":0.19704,"origin":"computed","note":"computed from the Table 6 coefficient"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Class-specific model: use only for trees in the stated DBH class. Non-destructive: volumes of standing trees were summed from laser-rangefinder frustum measurements (stem volume), not felled. The paper states d and h in metres, so published units use m; canonical form divides D (cm) by 100. Adj. R² and SE are printed per class but not stored (adj. R² is not R²). The class bounds are the sampling classes; the paper gives no measured DBH range. The paper also gives biomass = stem volume x wood specific gravity (not a fitted model, not added)."},{"id":"giri-2019-duabanga-grandiflora-10-30-d2h","source":"giri-2019","name":"D. grandiflora stem volume from DBH and height, 10–30 cm (Table 2)","output":{"quantity":"stem_volume"},"expression":"0.320 * (D/100)^2 * H","published":{"expression":"0.320 * d^2 * h","units":{"d":"m","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"m3"},"taxon":{"level":"species","name":"Duabanga grandiflora","family":"Lythraceae","group":"broadleaf"},"region":{"scope":"regional","countries":["IN"],"place":"Meghalaya, NE India (Garo, Khasi, Jaintia Hills and Ri-Bhoi districts)","biomes":["tropical","subtropical"]},"stand":"natural","fit":{"n_trees":25,"dbh_min_cm":10,"dbh_max_cm":30,"method":"Linear regression through the origin (SPSS), non-destructive frustum volumes (Newton's formula)"},"evidence":[{"field":"expression","quote":"V = 0.320*d2*h","locator":"Table 2, Diameter class 10–30 cm"},{"field":"published.units","quote":"all the parameters were converted into metres, and volume was calculated in cubic metres","locator":"Statistical analysis (Methods)"},{"field":"fit.n_trees","quote":"n = 75, 25 trees for each diameter class","locator":"Table 1 footnote"},{"field":"fit.dbh_min_cm","quote":"All the trees were divided into three diameter classes according to their DBH, viz. 10–30, 31–50 and >50 cm","locator":"Statistical analysis (Methods)"}],"check":[{"inputs":{"D":20,"H":18},"expected":0.2304,"origin":"computed","note":"computed from the Table 2 coefficient"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Class-specific model: use only for trees in the stated DBH class. Non-destructive: volumes of standing trees were summed from laser-rangefinder frustum measurements (stem volume), not felled. The paper states d and h in metres, so published units use m; canonical form divides D (cm) by 100. Adj. R² and SE are printed per class but not stored (adj. R² is not R²). The class bounds are the sampling classes; the paper gives no measured DBH range. The paper also gives biomass = stem volume x wood specific gravity (not a fitted model, not added)."},{"id":"giri-2019-duabanga-grandiflora-31-50-d2","source":"giri-2019","name":"D. grandiflora stem volume from DBH, 31–50 cm (Table 6)","output":{"quantity":"stem_volume"},"expression":"7.177 * (D/100)^2","published":{"expression":"7.177 * d^2","units":{"d":"m"},"variables":{"d":"D"},"output_unit":"m3"},"taxon":{"level":"species","name":"Duabanga grandiflora","family":"Lythraceae","group":"broadleaf"},"region":{"scope":"regional","countries":["IN"],"place":"Meghalaya, NE India (Garo, Khasi, Jaintia Hills and Ri-Bhoi districts)","biomes":["tropical","subtropical"]},"stand":"natural","fit":{"n_trees":25,"dbh_min_cm":31,"dbh_max_cm":50,"method":"Linear regression through the origin (SPSS), non-destructive frustum volumes (Newton's formula)"},"evidence":[{"field":"expression","quote":"V = 7.177*d2","locator":"Table 6, Diameter class 31–50 cm"},{"field":"published.units","quote":"all the parameters were converted into metres, and volume was calculated in cubic metres","locator":"Statistical analysis (Methods)"},{"field":"fit.n_trees","quote":"n = 75, 25 trees for each diameter class","locator":"Table 1 footnote"},{"field":"fit.dbh_min_cm","quote":"All the trees were divided into three diameter classes according to their DBH, viz. 10–30, 31–50 and >50 cm","locator":"Statistical analysis (Methods)"}],"check":[{"inputs":{"D":40},"expected":1.14832,"origin":"computed","note":"computed from the Table 6 coefficient"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Class-specific model: use only for trees in the stated DBH class. Non-destructive: volumes of standing trees were summed from laser-rangefinder frustum measurements (stem volume), not felled. The paper states d and h in metres, so published units use m; canonical form divides D (cm) by 100. Adj. R² and SE are printed per class but not stored (adj. R² is not R²). The class bounds are the sampling classes; the paper gives no measured DBH range. The paper also gives biomass = stem volume x wood specific gravity (not a fitted model, not added)."},{"id":"giri-2019-duabanga-grandiflora-31-50-d2h","source":"giri-2019","name":"D. grandiflora stem volume from DBH and height, 31–50 cm (Table 2)","output":{"quantity":"stem_volume"},"expression":"0.328 * (D/100)^2 * H","published":{"expression":"0.328 * d^2 * h","units":{"d":"m","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"m3"},"taxon":{"level":"species","name":"Duabanga grandiflora","family":"Lythraceae","group":"broadleaf"},"region":{"scope":"regional","countries":["IN"],"place":"Meghalaya, NE India (Garo, Khasi, Jaintia Hills and Ri-Bhoi districts)","biomes":["tropical","subtropical"]},"stand":"natural","fit":{"n_trees":25,"dbh_min_cm":31,"dbh_max_cm":50,"method":"Linear regression through the origin (SPSS), non-destructive frustum volumes (Newton's formula)"},"evidence":[{"field":"expression","quote":"V = 0.328*d2*h","locator":"Table 2, Diameter class 31–50 cm"},{"field":"published.units","quote":"all the parameters were converted into metres, and volume was calculated in cubic metres","locator":"Statistical analysis (Methods)"},{"field":"fit.n_trees","quote":"n = 75, 25 trees for each diameter class","locator":"Table 1 footnote"},{"field":"fit.dbh_min_cm","quote":"All the trees were divided into three diameter classes according to their DBH, viz. 10–30, 31–50 and >50 cm","locator":"Statistical analysis (Methods)"}],"check":[{"inputs":{"D":40,"H":18},"expected":0.94464,"origin":"computed","note":"computed from the Table 2 coefficient"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Class-specific model: use only for trees in the stated DBH class. Non-destructive: volumes of standing trees were summed from laser-rangefinder frustum measurements (stem volume), not felled. The paper states d and h in metres, so published units use m; canonical form divides D (cm) by 100. Adj. R² and SE are printed per class but not stored (adj. R² is not R²). The class bounds are the sampling classes; the paper gives no measured DBH range. The paper also gives biomass = stem volume x wood specific gravity (not a fitted model, not added)."},{"id":"giri-2019-duabanga-grandiflora-gt50-d2","source":"giri-2019","name":"D. grandiflora stem volume from DBH, >50 cm (Table 6)","output":{"quantity":"stem_volume"},"expression":"7.889 * (D/100)^2","published":{"expression":"7.889 * d^2","units":{"d":"m"},"variables":{"d":"D"},"output_unit":"m3"},"taxon":{"level":"species","name":"Duabanga grandiflora","family":"Lythraceae","group":"broadleaf"},"region":{"scope":"regional","countries":["IN"],"place":"Meghalaya, NE India (Garo, Khasi, Jaintia Hills and Ri-Bhoi districts)","biomes":["tropical","subtropical"]},"stand":"natural","fit":{"n_trees":25,"dbh_min_cm":50,"method":"Linear regression through the origin (SPSS), non-destructive frustum volumes (Newton's formula)"},"evidence":[{"field":"expression","quote":"V = 7.889*d2","locator":"Table 6, Diameter class >50 cm"},{"field":"published.units","quote":"all the parameters were converted into metres, and volume was calculated in cubic metres","locator":"Statistical analysis (Methods)"},{"field":"fit.n_trees","quote":"n = 75, 25 trees for each diameter class","locator":"Table 1 footnote"},{"field":"fit.dbh_min_cm","quote":"All the trees were divided into three diameter classes according to their DBH, viz. 10–30, 31–50 and >50 cm","locator":"Statistical analysis (Methods)"}],"check":[{"inputs":{"D":60},"expected":2.84004,"origin":"computed","note":"computed from the Table 6 coefficient"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Class-specific model: use only for trees in the stated DBH class. Non-destructive: volumes of standing trees were summed from laser-rangefinder frustum measurements (stem volume), not felled. The paper states d and h in metres, so published units use m; canonical form divides D (cm) by 100. Adj. R² and SE are printed per class but not stored (adj. R² is not R²). The class bounds are the sampling classes; the paper gives no measured DBH range. The paper also gives biomass = stem volume x wood specific gravity (not a fitted model, not added)."},{"id":"giri-2019-duabanga-grandiflora-gt50-d2h","source":"giri-2019","name":"D. grandiflora stem volume from DBH and height, >50 cm (Table 2)","output":{"quantity":"stem_volume"},"expression":"0.286 * (D/100)^2 * H","published":{"expression":"0.286 * d^2 * h","units":{"d":"m","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"m3"},"taxon":{"level":"species","name":"Duabanga grandiflora","family":"Lythraceae","group":"broadleaf"},"region":{"scope":"regional","countries":["IN"],"place":"Meghalaya, NE India (Garo, Khasi, Jaintia Hills and Ri-Bhoi districts)","biomes":["tropical","subtropical"]},"stand":"natural","fit":{"n_trees":25,"dbh_min_cm":50,"method":"Linear regression through the origin (SPSS), non-destructive frustum volumes (Newton's formula)"},"evidence":[{"field":"expression","quote":"V = 0.286*d2*h","locator":"Table 2, Diameter class >50 cm"},{"field":"published.units","quote":"all the parameters were converted into metres, and volume was calculated in cubic metres","locator":"Statistical analysis (Methods)"},{"field":"fit.n_trees","quote":"n = 75, 25 trees for each diameter class","locator":"Table 1 footnote"},{"field":"fit.dbh_min_cm","quote":"All the trees were divided into three diameter classes according to their DBH, viz. 10–30, 31–50 and >50 cm","locator":"Statistical analysis (Methods)"}],"check":[{"inputs":{"D":60,"H":18},"expected":1.85328,"origin":"computed","note":"computed from the Table 2 coefficient"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Class-specific model: use only for trees in the stated DBH class. Non-destructive: volumes of standing trees were summed from laser-rangefinder frustum measurements (stem volume), not felled. The paper states d and h in metres, so published units use m; canonical form divides D (cm) by 100. Adj. R² and SE are printed per class but not stored (adj. R² is not R²). The class bounds are the sampling classes; the paper gives no measured DBH range. The paper also gives biomass = stem volume x wood specific gravity (not a fitted model, not added)."},{"id":"giri-2019-magnolia-champaca-10-30-d2","source":"giri-2019","name":"M. champaca stem volume from DBH, 10–30 cm (Table 7)","output":{"quantity":"stem_volume"},"expression":"6.120 * (D/100)^2","published":{"expression":"6.120 * d^2","units":{"d":"m"},"variables":{"d":"D"},"output_unit":"m3"},"taxon":{"level":"species","name":"Magnolia champaca","family":"Magnoliaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["IN"],"place":"Meghalaya, NE India (Garo, Khasi, Jaintia Hills and Ri-Bhoi districts)","biomes":["tropical","subtropical"]},"stand":"natural","fit":{"n_trees":25,"dbh_min_cm":10,"dbh_max_cm":30,"method":"Linear regression through the origin (SPSS), non-destructive frustum volumes (Newton's formula)"},"evidence":[{"field":"expression","quote":"V = 6.120*d2","locator":"Table 7, Diameter class 10–30 cm"},{"field":"published.units","quote":"all the parameters were converted into metres, and volume was calculated in cubic metres","locator":"Statistical analysis (Methods)"},{"field":"fit.n_trees","quote":"n = 75, 25 trees for each diameter class","locator":"Table 1 footnote"},{"field":"fit.dbh_min_cm","quote":"All the trees were divided into three diameter classes according to their DBH, viz. 10–30, 31–50 and >50 cm","locator":"Statistical analysis (Methods)"}],"check":[{"inputs":{"D":20},"expected":0.2448,"origin":"computed","note":"computed from the Table 7 coefficient"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Class-specific model: use only for trees in the stated DBH class. Non-destructive: volumes of standing trees were summed from laser-rangefinder frustum measurements (stem volume), not felled. The paper states d and h in metres, so published units use m; canonical form divides D (cm) by 100. Adj. R² and SE are printed per class but not stored (adj. R² is not R²). The class bounds are the sampling classes; the paper gives no measured DBH range. The paper also gives biomass = stem volume x wood specific gravity (not a fitted model, not added)."},{"id":"giri-2019-magnolia-champaca-10-30-d2h","source":"giri-2019","name":"M. champaca stem volume from DBH and height, 10–30 cm (Table 3)","output":{"quantity":"stem_volume"},"expression":"0.372 * (D/100)^2 * H","published":{"expression":"0.372 * d^2 * h","units":{"d":"m","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"m3"},"taxon":{"level":"species","name":"Magnolia champaca","family":"Magnoliaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["IN"],"place":"Meghalaya, NE India (Garo, Khasi, Jaintia Hills and Ri-Bhoi districts)","biomes":["tropical","subtropical"]},"stand":"natural","fit":{"n_trees":25,"dbh_min_cm":10,"dbh_max_cm":30,"method":"Linear regression through the origin (SPSS), non-destructive frustum volumes (Newton's formula)"},"evidence":[{"field":"expression","quote":"V = 0.372*d2*h","locator":"Table 3, Diameter class 10–30 cm"},{"field":"published.units","quote":"all the parameters were converted into metres, and volume was calculated in cubic metres","locator":"Statistical analysis (Methods)"},{"field":"fit.n_trees","quote":"n = 75, 25 trees for each diameter class","locator":"Table 1 footnote"},{"field":"fit.dbh_min_cm","quote":"All the trees were divided into three diameter classes according to their DBH, viz. 10–30, 31–50 and >50 cm","locator":"Statistical analysis (Methods)"}],"check":[{"inputs":{"D":20,"H":18},"expected":0.26784,"origin":"computed","note":"computed from the Table 3 coefficient"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Class-specific model: use only for trees in the stated DBH class. Non-destructive: volumes of standing trees were summed from laser-rangefinder frustum measurements (stem volume), not felled. The paper states d and h in metres, so published units use m; canonical form divides D (cm) by 100. Adj. R² and SE are printed per class but not stored (adj. R² is not R²). The class bounds are the sampling classes; the paper gives no measured DBH range. The paper also gives biomass = stem volume x wood specific gravity (not a fitted model, not added)."},{"id":"giri-2019-magnolia-champaca-31-50-d2","source":"giri-2019","name":"M. champaca stem volume from DBH, 31–50 cm (Table 7)","output":{"quantity":"stem_volume"},"expression":"5.727 * (D/100)^2","published":{"expression":"5.727 * d^2","units":{"d":"m"},"variables":{"d":"D"},"output_unit":"m3"},"taxon":{"level":"species","name":"Magnolia champaca","family":"Magnoliaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["IN"],"place":"Meghalaya, NE India (Garo, Khasi, Jaintia Hills and Ri-Bhoi districts)","biomes":["tropical","subtropical"]},"stand":"natural","fit":{"n_trees":25,"dbh_min_cm":31,"dbh_max_cm":50,"method":"Linear regression through the origin (SPSS), non-destructive frustum volumes (Newton's formula)"},"evidence":[{"field":"expression","quote":"V = 5.727*d2","locator":"Table 7, Diameter class 31–50 cm"},{"field":"published.units","quote":"all the parameters were converted into metres, and volume was calculated in cubic metres","locator":"Statistical analysis (Methods)"},{"field":"fit.n_trees","quote":"n = 75, 25 trees for each diameter class","locator":"Table 1 footnote"},{"field":"fit.dbh_min_cm","quote":"All the trees were divided into three diameter classes according to their DBH, viz. 10–30, 31–50 and >50 cm","locator":"Statistical analysis (Methods)"}],"check":[{"inputs":{"D":40},"expected":0.91632,"origin":"computed","note":"computed from the Table 7 coefficient"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Class-specific model: use only for trees in the stated DBH class. Non-destructive: volumes of standing trees were summed from laser-rangefinder frustum measurements (stem volume), not felled. The paper states d and h in metres, so published units use m; canonical form divides D (cm) by 100. Adj. R² and SE are printed per class but not stored (adj. R² is not R²). The class bounds are the sampling classes; the paper gives no measured DBH range. The paper also gives biomass = stem volume x wood specific gravity (not a fitted model, not added)."},{"id":"giri-2019-magnolia-champaca-31-50-d2h","source":"giri-2019","name":"M. champaca stem volume from DBH and height, 31–50 cm (Table 3)","output":{"quantity":"stem_volume"},"expression":"0.272 * (D/100)^2 * H","published":{"expression":"0.272 * d^2 * h","units":{"d":"m","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"m3"},"taxon":{"level":"species","name":"Magnolia champaca","family":"Magnoliaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["IN"],"place":"Meghalaya, NE India (Garo, Khasi, Jaintia Hills and Ri-Bhoi districts)","biomes":["tropical","subtropical"]},"stand":"natural","fit":{"n_trees":25,"dbh_min_cm":31,"dbh_max_cm":50,"method":"Linear regression through the origin (SPSS), non-destructive frustum volumes (Newton's formula)"},"evidence":[{"field":"expression","quote":"V = 0.272*d2*h","locator":"Table 3, Diameter class 31–50 cm"},{"field":"published.units","quote":"all the parameters were converted into metres, and volume was calculated in cubic metres","locator":"Statistical analysis (Methods)"},{"field":"fit.n_trees","quote":"n = 75, 25 trees for each diameter class","locator":"Table 1 footnote"},{"field":"fit.dbh_min_cm","quote":"All the trees were divided into three diameter classes according to their DBH, viz. 10–30, 31–50 and >50 cm","locator":"Statistical analysis (Methods)"}],"check":[{"inputs":{"D":40,"H":18},"expected":0.78336,"origin":"computed","note":"computed from the Table 3 coefficient"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Class-specific model: use only for trees in the stated DBH class. Non-destructive: volumes of standing trees were summed from laser-rangefinder frustum measurements (stem volume), not felled. The paper states d and h in metres, so published units use m; canonical form divides D (cm) by 100. Adj. R² and SE are printed per class but not stored (adj. R² is not R²). The class bounds are the sampling classes; the paper gives no measured DBH range. The paper also gives biomass = stem volume x wood specific gravity (not a fitted model, not added)."},{"id":"giri-2019-magnolia-champaca-gt50-d2","source":"giri-2019","name":"M. champaca stem volume from DBH, >50 cm (Table 7)","output":{"quantity":"stem_volume"},"expression":"6.535 * (D/100)^2","published":{"expression":"6.535 * d^2","units":{"d":"m"},"variables":{"d":"D"},"output_unit":"m3"},"taxon":{"level":"species","name":"Magnolia champaca","family":"Magnoliaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["IN"],"place":"Meghalaya, NE India (Garo, Khasi, Jaintia Hills and Ri-Bhoi districts)","biomes":["tropical","subtropical"]},"stand":"natural","fit":{"n_trees":25,"dbh_min_cm":50,"method":"Linear regression through the origin (SPSS), non-destructive frustum volumes (Newton's formula)"},"evidence":[{"field":"expression","quote":"V = 6.535*d2","locator":"Table 7, Diameter class >50 cm"},{"field":"published.units","quote":"all the parameters were converted into metres, and volume was calculated in cubic metres","locator":"Statistical analysis (Methods)"},{"field":"fit.n_trees","quote":"n = 75, 25 trees for each diameter class","locator":"Table 1 footnote"},{"field":"fit.dbh_min_cm","quote":"All the trees were divided into three diameter classes according to their DBH, viz. 10–30, 31–50 and >50 cm","locator":"Statistical analysis (Methods)"}],"check":[{"inputs":{"D":60},"expected":2.3526,"origin":"computed","note":"computed from the Table 7 coefficient"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Class-specific model: use only for trees in the stated DBH class. Non-destructive: volumes of standing trees were summed from laser-rangefinder frustum measurements (stem volume), not felled. The paper states d and h in metres, so published units use m; canonical form divides D (cm) by 100. Adj. R² and SE are printed per class but not stored (adj. R² is not R²). The class bounds are the sampling classes; the paper gives no measured DBH range. The paper also gives biomass = stem volume x wood specific gravity (not a fitted model, not added)."},{"id":"giri-2019-magnolia-champaca-gt50-d2h","source":"giri-2019","name":"M. champaca stem volume from DBH and height, >50 cm (Table 3)","output":{"quantity":"stem_volume"},"expression":"0.265 * (D/100)^2 * H","published":{"expression":"0.265 * d^2 * h","units":{"d":"m","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"m3"},"taxon":{"level":"species","name":"Magnolia champaca","family":"Magnoliaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["IN"],"place":"Meghalaya, NE India (Garo, Khasi, Jaintia Hills and Ri-Bhoi districts)","biomes":["tropical","subtropical"]},"stand":"natural","fit":{"n_trees":25,"dbh_min_cm":50,"method":"Linear regression through the origin (SPSS), non-destructive frustum volumes (Newton's formula)"},"evidence":[{"field":"expression","quote":"V = 0.265*d2*h","locator":"Table 3, Diameter class >50 cm"},{"field":"published.units","quote":"all the parameters were converted into metres, and volume was calculated in cubic metres","locator":"Statistical analysis (Methods)"},{"field":"fit.n_trees","quote":"n = 75, 25 trees for each diameter class","locator":"Table 1 footnote"},{"field":"fit.dbh_min_cm","quote":"All the trees were divided into three diameter classes according to their DBH, viz. 10–30, 31–50 and >50 cm","locator":"Statistical analysis (Methods)"}],"check":[{"inputs":{"D":60,"H":18},"expected":1.7172,"origin":"computed","note":"computed from the Table 3 coefficient"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Class-specific model: use only for trees in the stated DBH class. Non-destructive: volumes of standing trees were summed from laser-rangefinder frustum measurements (stem volume), not felled. The paper states d and h in metres, so published units use m; canonical form divides D (cm) by 100. Adj. R² and SE are printed per class but not stored (adj. R² is not R²). The class bounds are the sampling classes; the paper gives no measured DBH range. The paper also gives biomass = stem volume x wood specific gravity (not a fitted model, not added)."},{"id":"giri-2019-toona-ciliata-10-30-d2","source":"giri-2019","name":"T. ciliata stem volume from DBH, 10–30 cm (Table 8)","output":{"quantity":"stem_volume"},"expression":"4.897 * (D/100)^2","published":{"expression":"4.897 * d^2","units":{"d":"m"},"variables":{"d":"D"},"output_unit":"m3"},"taxon":{"level":"species","name":"Toona ciliata","family":"Meliaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["IN"],"place":"Meghalaya, NE India (Garo, Khasi, Jaintia Hills and Ri-Bhoi districts)","biomes":["tropical","subtropical"]},"stand":"natural","fit":{"n_trees":25,"dbh_min_cm":10,"dbh_max_cm":30,"method":"Linear regression through the origin (SPSS), non-destructive frustum volumes (Newton's formula)"},"evidence":[{"field":"expression","quote":"V = 4.897*d2","locator":"Table 8, Diameter class 10–30 cm"},{"field":"published.units","quote":"all the parameters were converted into metres, and volume was calculated in cubic metres","locator":"Statistical analysis (Methods)"},{"field":"fit.n_trees","quote":"n = 75, 25 trees for each diameter class","locator":"Table 1 footnote"},{"field":"fit.dbh_min_cm","quote":"All the trees were divided into three diameter classes according to their DBH, viz. 10–30, 31–50 and >50 cm","locator":"Statistical analysis (Methods)"}],"check":[{"inputs":{"D":20},"expected":0.19588,"origin":"computed","note":"computed from the Table 8 coefficient"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Class-specific model: use only for trees in the stated DBH class. Non-destructive: volumes of standing trees were summed from laser-rangefinder frustum measurements (stem volume), not felled. The paper states d and h in metres, so published units use m; canonical form divides D (cm) by 100. Adj. R² and SE are printed per class but not stored (adj. R² is not R²). The class bounds are the sampling classes; the paper gives no measured DBH range. The paper also gives biomass = stem volume x wood specific gravity (not a fitted model, not added)."},{"id":"giri-2019-toona-ciliata-10-30-d2h","source":"giri-2019","name":"T. ciliata stem volume from DBH and height, 10–30 cm (Table 4)","output":{"quantity":"stem_volume"},"expression":"0.298 * (D/100)^2 * H","published":{"expression":"0.298 * d^2 * h","units":{"d":"m","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"m3"},"taxon":{"level":"species","name":"Toona ciliata","family":"Meliaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["IN"],"place":"Meghalaya, NE India (Garo, Khasi, Jaintia Hills and Ri-Bhoi districts)","biomes":["tropical","subtropical"]},"stand":"natural","fit":{"n_trees":25,"dbh_min_cm":10,"dbh_max_cm":30,"method":"Linear regression through the origin (SPSS), non-destructive frustum volumes (Newton's formula)"},"evidence":[{"field":"expression","quote":"V = 0.298*d2*h","locator":"Table 4, Diameter class 10–30 cm"},{"field":"published.units","quote":"all the parameters were converted into metres, and volume was calculated in cubic metres","locator":"Statistical analysis (Methods)"},{"field":"fit.n_trees","quote":"n = 75, 25 trees for each diameter class","locator":"Table 1 footnote"},{"field":"fit.dbh_min_cm","quote":"All the trees were divided into three diameter classes according to their DBH, viz. 10–30, 31–50 and >50 cm","locator":"Statistical analysis (Methods)"}],"check":[{"inputs":{"D":20,"H":18},"expected":0.21456,"origin":"computed","note":"computed from the Table 4 coefficient"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Class-specific model: use only for trees in the stated DBH class. Non-destructive: volumes of standing trees were summed from laser-rangefinder frustum measurements (stem volume), not felled. The paper states d and h in metres, so published units use m; canonical form divides D (cm) by 100. Adj. R² and SE are printed per class but not stored (adj. R² is not R²). The class bounds are the sampling classes; the paper gives no measured DBH range. The paper also gives biomass = stem volume x wood specific gravity (not a fitted model, not added)."},{"id":"giri-2019-toona-ciliata-31-50-d2","source":"giri-2019","name":"T. ciliata stem volume from DBH, 31–50 cm (Table 8)","output":{"quantity":"stem_volume"},"expression":"4.253 * (D/100)^2","published":{"expression":"4.253 * d^2","units":{"d":"m"},"variables":{"d":"D"},"output_unit":"m3"},"taxon":{"level":"species","name":"Toona ciliata","family":"Meliaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["IN"],"place":"Meghalaya, NE India (Garo, Khasi, Jaintia Hills and Ri-Bhoi districts)","biomes":["tropical","subtropical"]},"stand":"natural","fit":{"n_trees":25,"dbh_min_cm":31,"dbh_max_cm":50,"method":"Linear regression through the origin (SPSS), non-destructive frustum volumes (Newton's formula)"},"evidence":[{"field":"expression","quote":"V = 4.253*d2","locator":"Table 8, Diameter class 31–50 cm"},{"field":"published.units","quote":"all the parameters were converted into metres, and volume was calculated in cubic metres","locator":"Statistical analysis (Methods)"},{"field":"fit.n_trees","quote":"n = 75, 25 trees for each diameter class","locator":"Table 1 footnote"},{"field":"fit.dbh_min_cm","quote":"All the trees were divided into three diameter classes according to their DBH, viz. 10–30, 31–50 and >50 cm","locator":"Statistical analysis (Methods)"}],"check":[{"inputs":{"D":40},"expected":0.68048,"origin":"computed","note":"computed from the Table 8 coefficient"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Class-specific model: use only for trees in the stated DBH class. Non-destructive: volumes of standing trees were summed from laser-rangefinder frustum measurements (stem volume), not felled. The paper states d and h in metres, so published units use m; canonical form divides D (cm) by 100. Adj. R² and SE are printed per class but not stored (adj. R² is not R²). The class bounds are the sampling classes; the paper gives no measured DBH range. The paper also gives biomass = stem volume x wood specific gravity (not a fitted model, not added)."},{"id":"giri-2019-toona-ciliata-31-50-d2h","source":"giri-2019","name":"T. ciliata stem volume from DBH and height, 31–50 cm (Table 4)","output":{"quantity":"stem_volume"},"expression":"0.186 * (D/100)^2 * H","published":{"expression":"0.186 * d^2 * h","units":{"d":"m","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"m3"},"taxon":{"level":"species","name":"Toona ciliata","family":"Meliaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["IN"],"place":"Meghalaya, NE India (Garo, Khasi, Jaintia Hills and Ri-Bhoi districts)","biomes":["tropical","subtropical"]},"stand":"natural","fit":{"n_trees":25,"dbh_min_cm":31,"dbh_max_cm":50,"method":"Linear regression through the origin (SPSS), non-destructive frustum volumes (Newton's formula)"},"evidence":[{"field":"expression","quote":"V = 0.186*d2*h","locator":"Table 4, Diameter class 31–50 cm"},{"field":"published.units","quote":"all the parameters were converted into metres, and volume was calculated in cubic metres","locator":"Statistical analysis (Methods)"},{"field":"fit.n_trees","quote":"n = 75, 25 trees for each diameter class","locator":"Table 1 footnote"},{"field":"fit.dbh_min_cm","quote":"All the trees were divided into three diameter classes according to their DBH, viz. 10–30, 31–50 and >50 cm","locator":"Statistical analysis (Methods)"}],"check":[{"inputs":{"D":40,"H":18},"expected":0.53568,"origin":"computed","note":"computed from the Table 4 coefficient"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Class-specific model: use only for trees in the stated DBH class. Non-destructive: volumes of standing trees were summed from laser-rangefinder frustum measurements (stem volume), not felled. The paper states d and h in metres, so published units use m; canonical form divides D (cm) by 100. Adj. R² and SE are printed per class but not stored (adj. R² is not R²). The class bounds are the sampling classes; the paper gives no measured DBH range. The paper also gives biomass = stem volume x wood specific gravity (not a fitted model, not added)."},{"id":"giri-2019-toona-ciliata-gt50-d2","source":"giri-2019","name":"T. ciliata stem volume from DBH, >50 cm (Table 8)","output":{"quantity":"stem_volume"},"expression":"6.591 * (D/100)^2","published":{"expression":"6.591 * d^2","units":{"d":"m"},"variables":{"d":"D"},"output_unit":"m3"},"taxon":{"level":"species","name":"Toona ciliata","family":"Meliaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["IN"],"place":"Meghalaya, NE India (Garo, Khasi, Jaintia Hills and Ri-Bhoi districts)","biomes":["tropical","subtropical"]},"stand":"natural","fit":{"n_trees":25,"dbh_min_cm":50,"method":"Linear regression through the origin (SPSS), non-destructive frustum volumes (Newton's formula)"},"evidence":[{"field":"expression","quote":"V = 6.591*d2","locator":"Table 8, Diameter class >50 cm"},{"field":"published.units","quote":"all the parameters were converted into metres, and volume was calculated in cubic metres","locator":"Statistical analysis (Methods)"},{"field":"fit.n_trees","quote":"n = 75, 25 trees for each diameter class","locator":"Table 1 footnote"},{"field":"fit.dbh_min_cm","quote":"All the trees were divided into three diameter classes according to their DBH, viz. 10–30, 31–50 and >50 cm","locator":"Statistical analysis (Methods)"}],"check":[{"inputs":{"D":60},"expected":2.37276,"origin":"computed","note":"computed from the Table 8 coefficient"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Class-specific model: use only for trees in the stated DBH class. Non-destructive: volumes of standing trees were summed from laser-rangefinder frustum measurements (stem volume), not felled. The paper states d and h in metres, so published units use m; canonical form divides D (cm) by 100. Adj. R² and SE are printed per class but not stored (adj. R² is not R²). The class bounds are the sampling classes; the paper gives no measured DBH range. The paper also gives biomass = stem volume x wood specific gravity (not a fitted model, not added)."},{"id":"giri-2019-toona-ciliata-gt50-d2h","source":"giri-2019","name":"T. ciliata stem volume from DBH and height, >50 cm (Table 4)","output":{"quantity":"stem_volume"},"expression":"0.253 * (D/100)^2 * H","published":{"expression":"0.253 * d^2 * h","units":{"d":"m","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"m3"},"taxon":{"level":"species","name":"Toona ciliata","family":"Meliaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["IN"],"place":"Meghalaya, NE India (Garo, Khasi, Jaintia Hills and Ri-Bhoi districts)","biomes":["tropical","subtropical"]},"stand":"natural","fit":{"n_trees":25,"dbh_min_cm":50,"method":"Linear regression through the origin (SPSS), non-destructive frustum volumes (Newton's formula)"},"evidence":[{"field":"expression","quote":"V = 0.253*d2*h","locator":"Table 4, Diameter class >50 cm"},{"field":"published.units","quote":"all the parameters were converted into metres, and volume was calculated in cubic metres","locator":"Statistical analysis (Methods)"},{"field":"fit.n_trees","quote":"n = 75, 25 trees for each diameter class","locator":"Table 1 footnote"},{"field":"fit.dbh_min_cm","quote":"All the trees were divided into three diameter classes according to their DBH, viz. 10–30, 31–50 and >50 cm","locator":"Statistical analysis (Methods)"}],"check":[{"inputs":{"D":60,"H":18},"expected":1.63944,"origin":"computed","note":"computed from the Table 4 coefficient"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Class-specific model: use only for trees in the stated DBH class. Non-destructive: volumes of standing trees were summed from laser-rangefinder frustum measurements (stem volume), not felled. The paper states d and h in metres, so published units use m; canonical form divides D (cm) by 100. Adj. R² and SE are printed per class but not stored (adj. R² is not R²). The class bounds are the sampling classes; the paper gives no measured DBH range. The paper also gives biomass = stem volume x wood specific gravity (not a fitted model, not added)."},{"id":"gomez-2021-a-cochliacantha","source":"gomez-2021","name":"Acacia cochliacantha AGB from dbh (Table 3)","output":{"quantity":"agb"},"expression":"exp(-1.291 + 2.178 * ln(D))","published":{"expression":"exp(-1.291 + 2.178 * ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Acacia cochliacantha","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Sierra de Huautla Biosphere Reserve (Ejido El Limón), Morelos","biomes":["tropical","dryland"]},"stand":"natural","fit":{"dbh_min_cm":3.5,"dbh_max_cm":12,"r2":0.89,"method":"Linear regression of ln(biomass) on ln(dbh)"},"evidence":[{"field":"expression","quote":"ln(Y) = ln(a) + b ln(X)","locator":"Eq. 2, p. 4"},{"field":"expression","quote":"Acacia cochliacantha: n 8(26)*; β0 -1.291; β1 2.178; R2 0.89","locator":"Table 3, p. 7"},{"field":"fit.r2","quote":"R2 0.89","locator":"Table 3, p. 7"},{"field":"output","quote":"Y is aboveground biomass (kg), X is dbh (cm)","locator":"p. 4"}],"check":[{"inputs":{"D":10},"expected":41.431,"origin":"computed","note":"computed from the printed coefficients"},{"inputs":{"D":20},"expected":187.486,"origin":"computed","note":"computed from the printed coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"ln(Y) = b0 + b1 ln(DBH), natural log, no correction factor stated in the paper. Aboveground biomass includes foliage and small branches (trunk and crown sections were summed). The paper lists n as 8(26)* (the starred figure counts individual branches treated as units); n_trees is therefore left out and the dbh range is that of Table 1."},{"id":"gomez-2021-all-species","source":"gomez-2021","name":"Five-species pooled AGB from dbh (Table 4)","output":{"quantity":"agb"},"expression":"exp(-1.217 + 1.886 * ln(D))","published":{"expression":"exp(-1.217 + 1.886 * ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Five tropical dry forest species (Acacia cochliacantha, Conzattia multiflora, Euphorbia schlechtendalii, Ipomoea arborescens, Lysiloma microphyllum)","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Sierra de Huautla Biosphere Reserve (Ejido El Limón), Morelos","biomes":["tropical","dryland"]},"stand":"natural","fit":{"dbh_min_cm":3.5,"dbh_max_cm":32.9,"r2":0.668,"method":"Linear regression of ln(biomass) on ln(dbh)"},"evidence":[{"field":"expression","quote":"ln(Y) = ln(a) + b ln(X)","locator":"Eq. 2, p. 4"},{"field":"expression","quote":"All the species: n 60; β0 -1.217; β1 1.886; R2 0.668","locator":"Table 4, p. 9"},{"field":"fit.r2","quote":"R2 0.668","locator":"Table 4, p. 9"},{"field":"output","quote":"Y is aboveground biomass (kg), X is dbh (cm)","locator":"p. 4"}],"check":[{"inputs":{"D":10},"expected":22.7753,"origin":"computed","note":"computed from the printed coefficients"},{"inputs":{"D":20},"expected":84.1795,"origin":"computed","note":"computed from the printed coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"ln(Y) = b0 + b1 ln(DBH), natural log, no correction factor stated in the paper. Aboveground biomass includes foliage and small branches (trunk and crown sections were summed). The paper reports that the pooled model was rejected as heterogeneous; it is listed as printed. n 60 counts branch units, so n_trees is left out."},{"id":"gomez-2021-c-multiflora","source":"gomez-2021","name":"Conzattia multiflora AGB from dbh (Table 3)","output":{"quantity":"agb"},"expression":"exp(-3.739 + 2.819 * ln(D))","published":{"expression":"exp(-3.739 + 2.819 * ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Conzattia multiflora","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Sierra de Huautla Biosphere Reserve (Ejido El Limón), Morelos","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":8,"dbh_min_cm":4.9,"dbh_max_cm":25.2,"r2":0.99,"method":"Linear regression of ln(biomass) on ln(dbh)"},"evidence":[{"field":"expression","quote":"ln(Y) = ln(a) + b ln(X)","locator":"Eq. 2, p. 4"},{"field":"expression","quote":"Conzattia multiflora: n 8; β0 -3.739; β1 2.819; R2 0.99","locator":"Table 3, p. 7"},{"field":"fit.r2","quote":"R2 0.99","locator":"Table 3, p. 7"},{"field":"output","quote":"Y is aboveground biomass (kg), X is dbh (cm)","locator":"p. 4"}],"check":[{"inputs":{"D":10},"expected":15.6738,"origin":"computed","note":"computed from the printed coefficients"},{"inputs":{"D":20},"expected":110.605,"origin":"computed","note":"computed from the printed coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"ln(Y) = b0 + b1 ln(DBH), natural log, no correction factor stated in the paper. Aboveground biomass includes foliage and small branches (trunk and crown sections were summed)."},{"id":"gomez-2021-cei-group","source":"gomez-2021","name":"Lower wood density subgroup (CEI) AGB from dbh (Table 4)","output":{"quantity":"agb"},"expression":"exp(-3.515 + 2.652 * ln(D))","published":{"expression":"exp(-3.515 + 2.652 * ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Conzattia multiflora, Euphorbia schlechtendalii and Ipomoea arborescens (CEI subgroup, lower wood density)","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Sierra de Huautla Biosphere Reserve (Ejido El Limón), Morelos","biomes":["tropical","dryland"]},"stand":"natural","fit":{"r2":0.908,"method":"Linear regression of ln(biomass) on ln(dbh)"},"evidence":[{"field":"expression","quote":"ln(Y) = ln(a) + b ln(X)","locator":"Eq. 2, p. 4"},{"field":"expression","quote":"CEI: n 26; β0 -3.515; β1 2.652; R2 0.908","locator":"Table 4, p. 9"},{"field":"fit.r2","quote":"R2 0.908","locator":"Table 4, p. 9"},{"field":"output","quote":"Y is aboveground biomass (kg), X is dbh (cm)","locator":"p. 4"}],"check":[{"inputs":{"D":10},"expected":13.3492,"origin":"computed","note":"computed from the printed coefficients"},{"inputs":{"D":20},"expected":83.9047,"origin":"computed","note":"computed from the printed coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"ln(Y) = b0 + b1 ln(DBH), natural log, no correction factor stated in the paper. Aboveground biomass includes foliage and small branches (trunk and crown sections were summed). The paper found the CEI parameters heterogeneous across species. n 26 counts branch units, so n_trees is left out."},{"id":"gomez-2021-e-schlechtendalii","source":"gomez-2021","name":"Euphorbia schlechtendalii AGB from dbh (Table 3)","output":{"quantity":"agb"},"expression":"exp(-3.101 + 2.333 * ln(D))","published":{"expression":"exp(-3.101 + 2.333 * ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Euphorbia schlechtendalii","family":"Euphorbiaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Sierra de Huautla Biosphere Reserve (Ejido El Limón), Morelos","biomes":["tropical","dryland"]},"stand":"natural","fit":{"dbh_min_cm":5,"dbh_max_cm":16,"r2":0.88,"method":"Linear regression of ln(biomass) on ln(dbh)"},"evidence":[{"field":"expression","quote":"ln(Y) = ln(a) + b ln(X)","locator":"Eq. 2, p. 4"},{"field":"expression","quote":"Euphorbia schlechtendalii: n 8(10)*; β0 -3.101; β1 2.333; R2 0.88","locator":"Table 3, p. 7"},{"field":"fit.r2","quote":"R2 0.88","locator":"Table 3, p. 7"},{"field":"output","quote":"Y is aboveground biomass (kg), X is dbh (cm)","locator":"p. 4"}],"check":[{"inputs":{"D":10},"expected":9.68842,"origin":"computed","note":"computed from the printed coefficients"},{"inputs":{"D":20},"expected":48.8153,"origin":"computed","note":"computed from the printed coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"ln(Y) = b0 + b1 ln(DBH), natural log, no correction factor stated in the paper. Aboveground biomass includes foliage and small branches (trunk and crown sections were summed). The paper lists n as 8(10)* (the starred figure counts individual branches treated as units); n_trees is therefore left out and the dbh range is that of Table 1."},{"id":"gomez-2021-i-arborescens","source":"gomez-2021","name":"Ipomoea arborescens AGB from dbh (Table 3)","output":{"quantity":"agb"},"expression":"exp(-4.005 + 2.653 * ln(D))","published":{"expression":"exp(-4.005 + 2.653 * ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Ipomoea arborescens","family":"Convolvulaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Sierra de Huautla Biosphere Reserve (Ejido El Limón), Morelos","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":8,"dbh_min_cm":8,"dbh_max_cm":32.4,"r2":0.93,"method":"Linear regression of ln(biomass) on ln(dbh)"},"evidence":[{"field":"expression","quote":"ln(Y) = ln(a) + b ln(X)","locator":"Eq. 2, p. 4"},{"field":"expression","quote":"Ipomoea arborescens: n 8; β0 -4.005; β1 2.653; R2 0.93","locator":"Table 3, p. 7"},{"field":"fit.r2","quote":"R2 0.93","locator":"Table 3, p. 7"},{"field":"output","quote":"Y is aboveground biomass (kg), X is dbh (cm)","locator":"p. 4"}],"check":[{"inputs":{"D":10},"expected":8.19692,"origin":"computed","note":"computed from the printed coefficients"},{"inputs":{"D":20},"expected":51.5565,"origin":"computed","note":"computed from the printed coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"ln(Y) = b0 + b1 ln(DBH), natural log, no correction factor stated in the paper. Aboveground biomass includes foliage and small branches (trunk and crown sections were summed)."},{"id":"gomez-2021-l-microphyllum","source":"gomez-2021","name":"Lysiloma microphyllum AGB from dbh (Table 3)","output":{"quantity":"agb"},"expression":"exp(-1.852 + 2.378 * ln(D))","published":{"expression":"exp(-1.852 + 2.378 * ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Lysiloma microphyllum","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Sierra de Huautla Biosphere Reserve (Ejido El Limón), Morelos","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":8,"dbh_min_cm":4,"dbh_max_cm":32.9,"r2":0.99,"method":"Linear regression of ln(biomass) on ln(dbh)"},"evidence":[{"field":"expression","quote":"ln(Y) = ln(a) + b ln(X)","locator":"Eq. 2, p. 4"},{"field":"expression","quote":"Lysiloma microphyllum: n 8; β0 -1.852; β1 2.378; R2 0.99","locator":"Table 3, p. 7"},{"field":"fit.r2","quote":"R2 0.99","locator":"Table 3, p. 7"},{"field":"output","quote":"Y is aboveground biomass (kg), X is dbh (cm)","locator":"p. 4"}],"check":[{"inputs":{"D":10},"expected":37.4703,"origin":"computed","note":"computed from the printed coefficients"},{"inputs":{"D":20},"expected":194.776,"origin":"computed","note":"computed from the printed coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"ln(Y) = b0 + b1 ln(DBH), natural log, no correction factor stated in the paper. Aboveground biomass includes foliage and small branches (trunk and crown sections were summed)."},{"id":"gomez-2021-la-group","source":"gomez-2021","name":"High wood density subgroup (LA) AGB from dbh (Table 4)","output":{"quantity":"agb"},"expression":"exp(-1.399 + 2.225 * ln(D))","published":{"expression":"exp(-1.399 + 2.225 * ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Lysiloma microphyllum and Acacia cochliacantha (LA subgroup, wood density 0.83 g/cm3)","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Sierra de Huautla Biosphere Reserve (Ejido El Limón), Morelos","biomes":["tropical","dryland"]},"stand":"natural","fit":{"r2":0.955,"method":"Linear regression of ln(biomass) on ln(dbh)"},"evidence":[{"field":"expression","quote":"ln(Y) = ln(a) + b ln(X)","locator":"Eq. 2, p. 4"},{"field":"expression","quote":"LA: n 34; β0 -1.399; β1 2.225; R2 0.955","locator":"Table 4, p. 9"},{"field":"fit.r2","quote":"R2 0.955","locator":"Table 4, p. 9"},{"field":"output","quote":"Y is aboveground biomass (kg), X is dbh (cm)","locator":"p. 4"}],"check":[{"inputs":{"D":10},"expected":41.4402,"origin":"computed","note":"computed from the printed coefficients"},{"inputs":{"D":20},"expected":193.738,"origin":"computed","note":"computed from the printed coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"ln(Y) = b0 + b1 ln(DBH), natural log, no correction factor stated in the paper. Aboveground biomass includes foliage and small branches (trunk and crown sections were summed). n 34 counts branch units, so n_trees is left out."},{"id":"goodman-2013-astrocaryum-murumuru","source":"goodman-2013","name":"Astrocaryum murumuru AGB from stem height (through origin)","output":{"quantity":"agb"},"expression":"21.302 * Hstem","published":{"expression":"21.302 * Hstem","units":{"Hstem":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Astrocaryum murumuru","family":"Arecaceae","group":"palm"},"region":{"scope":"regional","countries":["PE"],"place":"Terra firme moist forest, forestry concession, Madre de Dios, Peru","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":18,"dbh_min_cm":15,"dbh_max_cm":29,"r2":0.957,"method":"Linear regression of AGB on Hstem with no intercept"},"evidence":[{"field":"expression","quote":"Astrocaryum AGB Hstem . 21.302 0.957 18 26.1","locator":"Table 3 ('.' = no intercept; RSE in kg)"},{"field":"fit.dbh_min_cm","quote":"MdD Astrocaryum murumuru 19 15-29 1.5-9.0 7.1-14.7","locator":"Table 1 (19 harvested; model n = 18)"}],"check":[{"inputs":{"Hstem":5},"expected":106.51,"origin":"computed","note":"computed from the Table 3 coefficient"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Hstem = stem height to the base of the lowest leaf (m), fitted range 1.5–9.0 m. Linear model, no log correction."},{"id":"goodman-2013-attalea-phalerata","source":"goodman-2013","name":"Attalea phalerata AGB from stem height","output":{"quantity":"agb"},"expression":"1.0712 * exp(3.2579 + 1.1249 * ln(Hstem + 1))","published":{"expression":"1.0712 * exp(3.2579 + 1.1249 * ln(Hstem + 1))","units":{"Hstem":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Attalea phalerata","family":"Arecaceae","group":"palm"},"region":{"scope":"regional","countries":["PE"],"place":"Terra firme moist forest, forestry concession, Madre de Dios, Peru","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":21,"dbh_min_cm":17,"dbh_max_cm":50,"r2":0.858,"rse":0.371,"cf":1.0712,"method":"OLS on ln(AGB) vs ln(Hstem + 1); Baskerville correction exp(RSE²/2)"},"evidence":[{"field":"expression","quote":"Attalea ln(AGB) ln(Hstem+1) 3.2579 1.1249 0.858 21 0.371","locator":"Table 3"},{"field":"fit.dbh_min_cm","quote":"MdD Attalea phalerata 21 17-50 0-20.1 7.1-25.6","locator":"Table 1"},{"field":"fit.cf","quote":"A correction factor, exp(RSE2/2), was applied to biomass estimates from logarithmically transformed models (Baskerville, 1972).","locator":"Section 2.4, lines 220–221 (author post-print)"}],"check":[{"inputs":{"Hstem":10},"expected":413.2579,"origin":"computed","note":"computed from the Table 3 coefficients times exp(RSE²/2)"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Hstem = stem height to the base of the lowest leaf (m); the +1 lets stemless individuals (Hstem 0) be estimated. Fitted Hstem range 0–20.1 m. The authors used this genus model for other Attalea species in their plot analysis. Correction factor multiplied in."},{"id":"goodman-2013-euterpe-precatoria","source":"goodman-2013","name":"Euterpe precatoria AGB from stem height (linear)","output":{"quantity":"agb"},"expression":"-108.81 + 13.589 * Hstem","published":{"expression":"-108.81 + 13.589 * Hstem","units":{"Hstem":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Euterpe precatoria","family":"Arecaceae","group":"palm"},"region":{"scope":"regional","countries":["PE"],"place":"Terra firme moist forest, forestry concession, Madre de Dios, Peru","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":8,"dbh_min_cm":12,"dbh_max_cm":19,"r2":0.973,"method":"Linear OLS of AGB on Hstem"},"evidence":[{"field":"expression","quote":"Euterpe AGB Hstem -108.81 13.589 0.973 8 8.37","locator":"Table 3 (RSE in kg for untransformed models)"},{"field":"fit.dbh_min_cm","quote":"MdD Euterpe precatoria 8 12-19 10.2-20.4 13.3-22.8","locator":"Table 1"}],"check":[{"inputs":{"Hstem":15},"expected":95.025,"origin":"computed","note":"computed from the Table 3 coefficients"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Linear in stem height (Hstem, m); only valid within the fitted Hstem range 10.2–20.4 m (negative below about 8 m). n = 8."},{"id":"goodman-2013-iriartea-deltoidea","source":"goodman-2013","name":"Iriartea deltoidea AGB from diameter and stem height","output":{"quantity":"agb"},"expression":"1.0495 * exp(-3.483 + 0.94371 * ln(D^2 * Hstem))","published":{"expression":"1.0495 * exp(-3.483 + 0.94371 * ln(D^2 * Hstem))","units":{"D":"cm","Hstem":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Iriartea deltoidea","family":"Arecaceae","group":"palm"},"region":{"scope":"regional","countries":["PE"],"place":"Terra firme moist forest, forestry concession, Madre de Dios, Peru","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":21,"dbh_min_cm":6,"dbh_max_cm":33,"r2":0.967,"rse":0.311,"cf":1.0495,"method":"OLS on ln(AGB) vs ln(D²·Hstem); Baskerville correction exp(RSE²/2)"},"evidence":[{"field":"expression","quote":"Iriartea ln(AGB) ln(D2Hstem) -3.483 0.94371 0.967 21 0.311","locator":"Table 3"},{"field":"fit.dbh_min_cm","quote":"MdD Iriartea deltoidea 21 6-33 3.3-21.8 5.6-25.1","locator":"Table 1 (n, D cm, Hstem m, Htot m)"},{"field":"fit.cf","quote":"A correction factor, exp(RSE2/2), was applied to biomass estimates from logarithmically transformed models (Baskerville, 1972).","locator":"Section 2.4, lines 220–221 (author post-print)"}],"check":[{"inputs":{"D":20,"Hstem":15},"expected":118.5261,"origin":"computed","note":"computed from the Table 3 coefficients times exp(RSE²/2)"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Hstem = stem height, ground to the base of the lowest leaf (new canonical variable Hstem, m), not total height. Fitted Hstem range 3.3–21.8 m. Correction factor exp(0.311²/2) multiplied in."},{"id":"goodman-2013-mauritia-flexuosa","source":"goodman-2013","name":"Mauritia flexuosa (aguaje) AGB from stem height","output":{"quantity":"agb"},"expression":"1.038 * exp(2.4647 + 1.3777 * ln(Hstem))","published":{"expression":"1.038 * exp(2.4647 + 1.3777 * ln(Hstem))","units":{"Hstem":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Mauritia flexuosa","family":"Arecaceae","group":"palm"},"region":{"scope":"regional","countries":["PE"],"place":"Wetland forest, Pacaya–Samiria National Reserve, Loreto, Peru","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":16,"dbh_min_cm":19,"dbh_max_cm":36,"r2":0.897,"rse":0.273,"cf":1.038,"method":"OLS on ln(AGB) vs ln(Hstem); Baskerville correction exp(RSE²/2)"},"evidence":[{"field":"expression","quote":"Mauritia ln(AGB) ln(Hstem) 2.4647 1.3777 0.897 16 0.273","locator":"Table 3"},{"field":"fit.dbh_min_cm","quote":"Loreto Mauritia flexuosa 16 19-36 5.1-30.5 9.1-38.4","locator":"Table 1"},{"field":"fit.cf","quote":"A correction factor, exp(RSE2/2), was applied to biomass estimates from logarithmically transformed models (Baskerville, 1972).","locator":"Section 2.4, lines 220–221 (author post-print)"}],"check":[{"inputs":{"Hstem":15},"expected":509.2182,"origin":"computed","note":"computed from the Table 3 coefficients times exp(RSE²/2)"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Height-only model: Hstem = stem height to the base of the lowest leaf (m), fitted range 5.1–30.5 m. The table row is labelled 'Mauritia'; all sampled individuals were M. flexuosa. Table 3 also gives a belowground model for this species. Correction factor multiplied in."},{"id":"goodman-2013-mauritiella-aculeata","source":"goodman-2013","name":"Mauritiella aculeata AGB from stem height (through origin)","output":{"quantity":"agb"},"expression":"2.8662 * Hstem","published":{"expression":"2.8662 * Hstem","units":{"Hstem":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Mauritiella aculeata","family":"Arecaceae","group":"palm"},"region":{"scope":"regional","countries":["PE"],"place":"Wetland forest, Pacaya–Samiria National Reserve, Loreto, Peru","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":18,"dbh_min_cm":8,"dbh_max_cm":15,"r2":0.972,"method":"Linear regression of AGB on Hstem with no intercept"},"evidence":[{"field":"expression","quote":"Mauritiella AGB Hstem . 2.8662 0.972 18 8.21","locator":"Table 3"},{"field":"fit.dbh_min_cm","quote":"Loreto Mauritiella aculeata 18 8-15 3.5-20.6 5.3-26.1","locator":"Table 1"}],"check":[{"inputs":{"Hstem":10},"expected":28.662,"origin":"computed","note":"computed from the Table 3 coefficient"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Clustered wetland palm; Hstem = stem height to the base of the lowest leaf (m), fitted range 3.5–20.6 m. Linear model, no log correction."},{"id":"goodman-2013-oenocarpus-bataua","source":"goodman-2013","name":"Oenocarpus bataua AGB from stem height","output":{"quantity":"agb"},"expression":"1.0285 * exp(4.5496 + 0.1387 * Hstem)","published":{"expression":"1.0285 * exp(4.5496 + 0.1387 * Hstem)","units":{"Hstem":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Oenocarpus bataua","family":"Arecaceae","group":"palm"},"region":{"scope":"regional","countries":["PE"],"place":"Terra firme moist forest, forestry concession, Madre de Dios, Peru","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":10,"dbh_min_cm":21,"dbh_max_cm":41,"r2":0.784,"rse":0.237,"cf":1.0285,"method":"OLS on ln(AGB) vs Hstem; Baskerville correction exp(RSE²/2)"},"evidence":[{"field":"expression","quote":"Oenocarpus ln(AGB) Hstem 4.5496 0.1387 0.784 10 0.237","locator":"Table 3"},{"field":"fit.dbh_min_cm","quote":"MdD Oenocarpus bataua 10 21-41 2.9-14.5 14.2-25.9","locator":"Table 1"},{"field":"fit.cf","quote":"A correction factor, exp(RSE2/2), was applied to biomass estimates from logarithmically transformed models (Baskerville, 1972).","locator":"Section 2.4, lines 220–221 (author post-print)"}],"check":[{"inputs":{"Hstem":10},"expected":389.4367,"origin":"computed","note":"computed from the Table 3 coefficients times exp(RSE²/2)"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Exponential in stem height (Hstem, m; fitted range 2.9–14.5 m). Correction factor multiplied in."},{"id":"goodman-2013-palm-family-d","source":"goodman-2013","name":"Amazon arborescent palms, family-level AGB from diameter only","output":{"quantity":"agb"},"expression":"1.1887 * exp(-3.3488 + 2.7483 * ln(D))","published":{"expression":"1.1887 * exp(-3.3488 + 2.7483 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"family","name":"Arecaceae","family":"Arecaceae","group":"palm"},"region":{"scope":"regional","countries":["PE"],"place":"Western Amazonia: Madre de Dios (terra firme) and Loreto (wetland), Peru","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":97,"dbh_min_cm":6,"dbh_max_cm":40,"r2":0.802,"rse":0.588,"cf":1.1887,"method":"OLS on ln(AGB) vs ln(D), 9 species pooled; Baskerville correction exp(RSE²/2)"},"evidence":[{"field":"expression","quote":"Family-level ln(AGB) ln(D) -3.3488 2.7483 0.802 97 0.588","locator":"Table 3 (y, x1, a, b, R2, n, RSE)"},{"field":"fit.dbh_min_cm","quote":"the family-level models without a height term are only valid for individuals with Hstem > 3 m and 6 ≤ D < 40 cm","locator":"Table 3 caption"},{"field":"fit.cf","quote":"A correction factor, exp(RSE2/2), was applied to biomass estimates from logarithmically transformed models (Baskerville, 1972).","locator":"Section 2.4, lines 220–221 (author post-print)"}],"check":[{"inputs":{"D":20},"expected":157.1548,"origin":"computed","note":"computed from the Table 3 coefficients times exp(RSE²/2)"}],"verification":"original_read","checked_at":"2026-11-01","notes":"D measured at 1.3 m or above the highest stilt root. The correction factor exp(0.588²/2) is multiplied in, as the authors direct; Table 3 prints the log-scale coefficients without it. The authors recommend height-based species models (Hstem) where possible; D-only palm models are weak because many palms stop thickening."},{"id":"goodman-2013-socratea-exorrhiza","source":"goodman-2013","name":"Socratea exorrhiza AGB from diameter and stem height","output":{"quantity":"agb"},"expression":"1.0261 * exp(-3.7965 + 1.0029 * ln(D^2 * Hstem))","published":{"expression":"1.0261 * exp(-3.7965 + 1.0029 * ln(D^2 * Hstem))","units":{"D":"cm","Hstem":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Socratea exorrhiza","family":"Arecaceae","group":"palm"},"region":{"scope":"regional","countries":["PE"],"place":"Terra firme moist forest, forestry concession, Madre de Dios, Peru","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":20,"dbh_min_cm":4,"dbh_max_cm":24,"r2":0.976,"rse":0.227,"cf":1.0261,"method":"OLS on ln(AGB) vs ln(D²·Hstem); Baskerville correction exp(RSE²/2)"},"evidence":[{"field":"expression","quote":"Socratea ln(AGB) ln(D2Hstem) -3.7965 1.0029 0.976 20 0.227","locator":"Table 3"},{"field":"fit.dbh_min_cm","quote":"MdD Socratea exorrhiza 20 4-24 2.0-21.9 3.2-23.9","locator":"Table 1"},{"field":"fit.cf","quote":"A correction factor, exp(RSE2/2), was applied to biomass estimates from logarithmically transformed models (Baskerville, 1972).","locator":"Section 2.4, lines 220–221 (author post-print)"}],"check":[{"inputs":{"D":15,"Hstem":15},"expected":79.597,"origin":"computed","note":"computed from the Table 3 coefficients times exp(RSE²/2)"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Hstem = stem height to the base of the lowest leaf (m). D at 1.3 m or above the stilt roots. Fitted Hstem range 2.0–21.9 m. Correction factor multiplied in."},{"id":"goussanou-2016-albizia-zygia-stem-biomass-d","source":"goussanou-2016","name":"Albizia zygia stem biomass from Dbh","output":{"quantity":"stem_biomass"},"expression":"exp(-2.63 + 2.6 * ln(D) + 0.03)","published":{"expression":"exp(-2.63 + 2.6 * ln(Dbh) + 0.03)","units":{"Dbh":"cm"},"variables":{"Dbh":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Albizia zygia","group":"broadleaf"},"region":{"scope":"site","countries":["BJ"],"place":"Lama forest reserve, southern Benin (semi-deciduous forest)","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":28,"dbh_min_cm":2.5,"dbh_max_cm":65.5,"method":"ln-ln linear regression, back-transformed with exp(σ²/2) (printed σ²/2 is rounded to 2 decimals)"},"evidence":[{"field":"expression","quote":"A. zygia –2.63*** (0.17) 2.60*** (0.05) 98.92 23 0.03 26","locator":"Eq. 3 and 5, p. 7; Table 4 (Model structure: ln(X) = x0 + x1ln(Dbh)), p. 10"},{"field":"fit.n_trees","quote":"Albizia zygia 28 168 2.5–65.5","locator":"Table 1, p. 5 (number of sample trees)"},{"field":"fit.dbh_min_cm","quote":"Albizia zygia 28 168 2.5–65.5","locator":"Table 1, p. 5 (Dbh range, cm)"}],"check":[{"inputs":{"D":20},"expected":179.27,"origin":"computed","note":"computed from the published form (coefficients as printed to 2 decimals)"},{"inputs":{"D":40},"expected":1086.9,"origin":"computed","note":"computed from the published form (coefficients as printed to 2 decimals)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Stem biomass only (stem = height to crown base); the authors say to multiply by a biomass expansion factor (IPCC 2006) to get aboveground biomass. Coefficients are printed to 2 decimals, so predictions are only as precise as that. σ²/2 is the paper's printed bias-correction term, added inside the exponent (Eq. 5); it is printed rounded to 2 decimals. Recommended-to-capture subset: species-specific Dbh-only biomass models for six species; the paper prefers species-specific models over the generic one. "},{"id":"goussanou-2016-cassipourea-congoensis-stem-biomass-d","source":"goussanou-2016","name":"Cassipourea congoensis stem biomass from Dbh","output":{"quantity":"stem_biomass"},"expression":"exp(-2.25 + 2.56 * ln(D) + 0.02)","published":{"expression":"exp(-2.25 + 2.56 * ln(Dbh) + 0.02)","units":{"Dbh":"cm"},"variables":{"Dbh":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Cassipourea congoensis","group":"broadleaf"},"region":{"scope":"site","countries":["BJ"],"place":"Lama forest reserve, southern Benin (semi-deciduous forest)","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":28,"dbh_min_cm":2.8,"dbh_max_cm":22.4,"method":"ln-ln linear regression, back-transformed with exp(σ²/2) (printed σ²/2 is rounded to 2 decimals)"},"evidence":[{"field":"expression","quote":"C. congoensis –2.25*** (0.12) 2.56*** (0.06) 98.6 17 0.02 26","locator":"Eq. 3 and 5, p. 7; Table 4 (Model structure: ln(X) = x0 + x1ln(Dbh)), p. 10"},{"field":"fit.n_trees","quote":"Cassipourea congoensis 28 143 2.8–22.4","locator":"Table 1, p. 5 (number of sample trees)"},{"field":"fit.dbh_min_cm","quote":"Cassipourea congoensis 28 143 2.8–22.4","locator":"Table 1, p. 5 (Dbh range, cm)"}],"check":[{"inputs":{"D":20},"expected":230.23,"origin":"computed","note":"computed from the published form (coefficients as printed to 2 decimals)"},{"inputs":{"D":40},"expected":1357.7,"origin":"computed","note":"computed from the published form (coefficients as printed to 2 decimals)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Stem biomass only (stem = height to crown base); the authors say to multiply by a biomass expansion factor (IPCC 2006) to get aboveground biomass. Coefficients are printed to 2 decimals, so predictions are only as precise as that. σ²/2 is the paper's printed bias-correction term, added inside the exponent (Eq. 5); it is printed rounded to 2 decimals. Recommended-to-capture subset: species-specific Dbh-only biomass models for six species; the paper prefers species-specific models over the generic one. "},{"id":"goussanou-2016-generic-stem-biomass-d","source":"goussanou-2016","name":"Generic stem biomass from Dbh (Lama forest)","output":{"quantity":"stem_biomass"},"expression":"exp(-1.98 + 2.3 * ln(D) + 0.1)","published":{"expression":"exp(-1.98 + 2.3 * ln(Dbh) + 0.1)","units":{"Dbh":"cm"},"variables":{"Dbh":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Eighteen dominant tree species of Lama forest plus species from Guendehou et al. (2012)","group":"broadleaf"},"region":{"scope":"site","countries":["BJ"],"place":"Lama forest reserve, southern Benin (semi-deciduous forest)","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":617,"method":"ln-ln linear regression, back-transformed with exp(σ²/2) (printed σ²/2 is rounded to 2 decimals)"},"evidence":[{"field":"expression","quote":"Generic –1.98*** (0.06) 2.30*** (0.02) 95.07 45 0.10 615","locator":"Eq. 3 and 5, p. 7; Table 4 (Model structure: ln(X) = x0 + x1ln(Dbh)), p. 10"},{"field":"fit.n_trees","quote":"This resulted in 617 trees used for the generic volume and biomass models.","locator":"Section 2.3, p. 7"}],"check":[{"inputs":{"D":20},"expected":149.93,"origin":"computed","note":"computed from the published form (coefficients as printed to 2 decimals)"},{"inputs":{"D":40},"expected":738.35,"origin":"computed","note":"computed from the published form (coefficients as printed to 2 decimals)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Stem biomass only (stem = height to crown base); the authors say to multiply by a biomass expansion factor (IPCC 2006) to get aboveground biomass. Coefficients are printed to 2 decimals, so predictions are only as precise as that. σ²/2 is the paper's printed bias-correction term, added inside the exponent (Eq. 5); it is printed rounded to 2 decimals. Fitted on the 501 trees of this study plus those of Guendehou et al. (2012) (617 trees); the paper gives no Dbh range for the combined set, and the authors warn it predicts most species poorly. Adjusted R² 95.07%, rRMSE 45% (Table 4). "},{"id":"goussanou-2016-generic-stem-volume-d","source":"goussanou-2016","name":"Generic stem volume from Dbh (Lama forest)","output":{"quantity":"stem_volume"},"expression":"0.001 * exp(-1.48 + 2.29 * ln(D) + 0.05)","published":{"expression":"exp(-1.48 + 2.29 * ln(Dbh) + 0.05)","units":{"Dbh":"cm"},"variables":{"Dbh":"D"},"output_unit":"dm3"},"taxon":{"level":"mixed","name":"Eighteen dominant tree species of Lama forest plus species from Guendehou et al. (2012)","group":"broadleaf"},"region":{"scope":"site","countries":["BJ"],"place":"Lama forest reserve, southern Benin (semi-deciduous forest)","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":617,"method":"ln-ln linear regression, back-transformed with exp(σ²/2) (printed σ²/2 is rounded to 2 decimals)"},"evidence":[{"field":"expression","quote":"Generic –1.48*** (0.04) 2.29*** (0.01) 97.51 32 0.05 615","locator":"Eq. 3 and 5, p. 7; Table 3 (Model structure: ln(V) = x0 + x1ln(Dbh)), p. 9"},{"field":"fit.n_trees","quote":"This resulted in 617 trees used for the generic volume and biomass models.","locator":"Section 2.3, p. 7"}],"check":[{"inputs":{"D":20},"expected":0.2282,"origin":"computed","note":"computed from the published form (coefficients as printed to 2 decimals)"},{"inputs":{"D":40},"expected":1.116,"origin":"computed","note":"computed from the published form (coefficients as printed to 2 decimals)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Total stem volume (stem = height to crown base), not whole-tree volume. Paper unit is 10^-3 m3 (= dm3); canonical expression converts to m3. Coefficients are printed to 2 decimals, so predictions are only as precise as that. σ²/2 is the paper's printed bias-correction term, added inside the exponent (Eq. 5); it is printed rounded to 2 decimals. Adjusted R² 97.51%, rRMSE 32% (Table 3). Fitted on 617 trees (this study plus Guendehou et al. 2012). "},{"id":"goussanou-2016-holoptelea-grandis-stem-biomass-d","source":"goussanou-2016","name":"Holoptelea grandis stem biomass from Dbh","output":{"quantity":"stem_biomass"},"expression":"exp(-2.44 + 2.51 * ln(D) + 0.01)","published":{"expression":"exp(-2.44 + 2.51 * ln(Dbh) + 0.01)","units":{"Dbh":"cm"},"variables":{"Dbh":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Holoptelea grandis","group":"broadleaf"},"region":{"scope":"site","countries":["BJ"],"place":"Lama forest reserve, southern Benin (semi-deciduous forest)","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":34,"dbh_min_cm":3.5,"dbh_max_cm":32.9,"method":"ln-ln linear regression, back-transformed with exp(σ²/2) (printed σ²/2 is rounded to 2 decimals)"},"evidence":[{"field":"expression","quote":"H. grandis –2.44*** (0.10) 2.51*** (0.04) 99.23 16 0.01 32","locator":"Eq. 3 and 5, p. 7; Table 4 (Model structure: ln(X) = x0 + x1ln(Dbh)), p. 10"},{"field":"fit.n_trees","quote":"Holoptelea grandis 34 207 3.5–32.9","locator":"Table 1, p. 5 (number of sample trees)"},{"field":"fit.dbh_min_cm","quote":"Holoptelea grandis 34 207 3.5–32.9","locator":"Table 1, p. 5 (Dbh range, cm)"}],"check":[{"inputs":{"D":20},"expected":162.27,"origin":"computed","note":"computed from the published form (coefficients as printed to 2 decimals)"},{"inputs":{"D":40},"expected":924.35,"origin":"computed","note":"computed from the published form (coefficients as printed to 2 decimals)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Stem biomass only (stem = height to crown base); the authors say to multiply by a biomass expansion factor (IPCC 2006) to get aboveground biomass. Coefficients are printed to 2 decimals, so predictions are only as precise as that. σ²/2 is the paper's printed bias-correction term, added inside the exponent (Eq. 5); it is printed rounded to 2 decimals. Recommended-to-capture subset: species-specific Dbh-only biomass models for six species; the paper prefers species-specific models over the generic one. "},{"id":"goussanou-2016-khaya-senegalensis-stem-biomass-d","source":"goussanou-2016","name":"Khaya senegalensis stem biomass from Dbh","output":{"quantity":"stem_biomass"},"expression":"exp(-2.5 + 2.4 * ln(D) + 0.02)","published":{"expression":"exp(-2.5 + 2.4 * ln(Dbh) + 0.02)","units":{"Dbh":"cm"},"variables":{"Dbh":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Khaya senegalensis","group":"broadleaf"},"region":{"scope":"site","countries":["BJ"],"place":"Lama forest reserve, southern Benin (semi-deciduous forest)","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":27,"dbh_min_cm":3.7,"dbh_max_cm":40.2,"method":"ln-ln linear regression, back-transformed with exp(σ²/2) (printed σ²/2 is rounded to 2 decimals)"},"evidence":[{"field":"expression","quote":"K. senegalensis –2.50*** (0.16) 2.40*** (0.06) 98.56 22 0.02 25","locator":"Eq. 3 and 5, p. 7; Table 4 (Model structure: ln(X) = x0 + x1ln(Dbh)), p. 10"},{"field":"fit.n_trees","quote":"Khaya senegalensis 27 160 3.7–40.2","locator":"Table 1, p. 5 (number of sample trees)"},{"field":"fit.dbh_min_cm","quote":"Khaya senegalensis 27 160 3.7–40.2","locator":"Table 1, p. 5 (Dbh range, cm)"}],"check":[{"inputs":{"D":20},"expected":111.03,"origin":"computed","note":"computed from the published form (coefficients as printed to 2 decimals)"},{"inputs":{"D":40},"expected":585.99,"origin":"computed","note":"computed from the published form (coefficients as printed to 2 decimals)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Stem biomass only (stem = height to crown base); the authors say to multiply by a biomass expansion factor (IPCC 2006) to get aboveground biomass. Coefficients are printed to 2 decimals, so predictions are only as precise as that. σ²/2 is the paper's printed bias-correction term, added inside the exponent (Eq. 5); it is printed rounded to 2 decimals. Recommended-to-capture subset: species-specific Dbh-only biomass models for six species; the paper prefers species-specific models over the generic one. "},{"id":"goussanou-2016-terminalia-superba-stem-biomass-d","source":"goussanou-2016","name":"Terminalia superba stem biomass from Dbh","output":{"quantity":"stem_biomass"},"expression":"exp(-2.38 + 2.45 * ln(D) + 0.01)","published":{"expression":"exp(-2.38 + 2.45 * ln(Dbh) + 0.01)","units":{"Dbh":"cm"},"variables":{"Dbh":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Terminalia superba","group":"broadleaf"},"region":{"scope":"site","countries":["BJ"],"place":"Lama forest reserve, southern Benin (semi-deciduous forest)","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":37,"dbh_min_cm":8.2,"dbh_max_cm":44.4,"method":"ln-ln linear regression, back-transformed with exp(σ²/2) (printed σ²/2 is rounded to 2 decimals)"},"evidence":[{"field":"expression","quote":"T. superba –2.38*** (0.16) 2.45*** (0.05) 98.31 16 0.01 35","locator":"Eq. 3 and 5, p. 7; Table 4 (Model structure: ln(X) = x0 + x1ln(Dbh)), p. 10"},{"field":"fit.n_trees","quote":"Terminalia superba 37 240 8.2–44.4","locator":"Table 1, p. 5 (number of sample trees)"},{"field":"fit.dbh_min_cm","quote":"Terminalia superba 37 240 8.2–44.4","locator":"Table 1, p. 5 (Dbh range, cm)"}],"check":[{"inputs":{"D":20},"expected":143.96,"origin":"computed","note":"computed from the published form (coefficients as printed to 2 decimals)"},{"inputs":{"D":40},"expected":786.63,"origin":"computed","note":"computed from the published form (coefficients as printed to 2 decimals)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Stem biomass only (stem = height to crown base); the authors say to multiply by a biomass expansion factor (IPCC 2006) to get aboveground biomass. Coefficients are printed to 2 decimals, so predictions are only as precise as that. σ²/2 is the paper's printed bias-correction term, added inside the exponent (Eq. 5); it is printed rounded to 2 decimals. Recommended-to-capture subset: species-specific Dbh-only biomass models for six species; the paper prefers species-specific models over the generic one. "},{"id":"goussanou-2016-triplochiton-scleroxylon-stem-biomass-d","source":"goussanou-2016","name":"Triplochiton scleroxylon stem biomass from Dbh","output":{"quantity":"stem_biomass"},"expression":"exp(-2.64 + 2.44 * ln(D) + 0.03)","published":{"expression":"exp(-2.64 + 2.44 * ln(Dbh) + 0.03)","units":{"Dbh":"cm"},"variables":{"Dbh":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Triplochiton scleroxylon","group":"broadleaf"},"region":{"scope":"site","countries":["BJ"],"place":"Lama forest reserve, southern Benin (semi-deciduous forest)","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":48,"dbh_min_cm":2.3,"dbh_max_cm":47.5,"method":"ln-ln linear regression, back-transformed with exp(σ²/2) (printed σ²/2 is rounded to 2 decimals)"},"evidence":[{"field":"expression","quote":"T. scleroxylon –2.64*** (0.14) 2.44*** (0.05) 98.24 24 0.03 46","locator":"Eq. 3 and 5, p. 7; Table 4 (Model structure: ln(X) = x0 + x1ln(Dbh)), p. 10"},{"field":"fit.n_trees","quote":"Triplochiton scleroxylon 48 309 2.3–47.5","locator":"Table 1, p. 5 (number of sample trees)"},{"field":"fit.dbh_min_cm","quote":"Triplochiton scleroxylon 48 309 2.3–47.5","locator":"Table 1, p. 5 (Dbh range, cm)"}],"check":[{"inputs":{"D":20},"expected":109.9,"origin":"computed","note":"computed from the published form (coefficients as printed to 2 decimals)"},{"inputs":{"D":40},"expected":596.37,"origin":"computed","note":"computed from the published form (coefficients as printed to 2 decimals)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Stem biomass only (stem = height to crown base); the authors say to multiply by a biomass expansion factor (IPCC 2006) to get aboveground biomass. Coefficients are printed to 2 decimals, so predictions are only as precise as that. σ²/2 is the paper's printed bias-correction term, added inside the exponent (Eq. 5); it is printed rounded to 2 decimals. Recommended-to-capture subset: species-specific Dbh-only biomass models for six species; the paper prefers species-specific models over the generic one. "},{"id":"gwon-2014-gen-agb","source":"gwon-2014","name":"Cryptomeria japonica Generalized aboveground total (log10, Table 4)","output":{"quantity":"agb"},"expression":"10^(-0.3972 + 1.9041 * log10(D))","published":{"expression":"10^(-0.3972 + 1.9041 * log10(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Cryptomeria japonica","family":"Cupressaceae","group":"conifer"},"region":{"scope":"site","countries":["KR"],"place":"Samdong-myeon, Namhae-gun, Gyeongsangnam-do, South Korea","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":10,"r2":0.82,"method":"log10-log10 least-squares regression (SAS Proc Reg)"},"evidence":[{"field":"expression","quote":"log10Y=a+blog10X [Y = dry weight (kg); X: DBH (cm)]","locator":"Materials and Methods 2"},{"field":"expression","quote":"Generalized equations: Aboveground total (kg) -0.3972 1.9041 0.82 0.001","locator":"Table 4"},{"field":"fit.n_trees","quote":"5본을 선정하였다","locator":"Materials and Methods 2 (5 felled trees per stand density)"}],"check":[{"inputs":{"D":20},"expected":120.2517,"origin":"computed","note":"computed from the Table 4 coefficients"},{"inputs":{"D":35},"expected":349.0278,"origin":"computed","note":"computed from the Table 4 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"log10(Y) = a + b*log10(X); the paper prints no correction factor, so none is applied. Total includes stem, branch, foliage and cone biomass (Table 3 components). Pooled over both stand densities (n = 5 + 5). Sample-tree DBH range is not printed, so none is given."},{"id":"gwon-2014-gen-branch","source":"gwon-2014","name":"Cryptomeria japonica Generalized branch (log10, Table 4)","output":{"quantity":"branch_biomass"},"expression":"10^(-2.1572 + 2.4965 * log10(D))","published":{"expression":"10^(-2.1572 + 2.4965 * log10(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Cryptomeria japonica","family":"Cupressaceae","group":"conifer"},"region":{"scope":"site","countries":["KR"],"place":"Samdong-myeon, Namhae-gun, Gyeongsangnam-do, South Korea","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":10,"r2":0.85,"method":"log10-log10 least-squares regression (SAS Proc Reg)"},"evidence":[{"field":"expression","quote":"log10Y=a+blog10X [Y = dry weight (kg); X: DBH (cm)]","locator":"Materials and Methods 2"},{"field":"expression","quote":"Generalized equations: Branch (kg) -2.1572 2.4965 0.85 0.000","locator":"Table 4"},{"field":"fit.n_trees","quote":"5본을 선정하였다","locator":"Materials and Methods 2 (5 felled trees per stand density)"}],"check":[{"inputs":{"D":20},"expected":12.326,"origin":"computed","note":"computed from the Table 4 coefficients"},{"inputs":{"D":35},"expected":49.8386,"origin":"computed","note":"computed from the Table 4 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"log10(Y) = a + b*log10(X); the paper prints no correction factor, so none is applied. Pooled over both stand densities (n = 5 + 5). Sample-tree DBH range is not printed, so none is given."},{"id":"gwon-2014-gen-foliage","source":"gwon-2014","name":"Cryptomeria japonica Generalized foliage (log10, Table 4)","output":{"quantity":"foliage_biomass"},"expression":"10^(-1.1268 + 1.817 * log10(D))","published":{"expression":"10^(-1.1268 + 1.817 * log10(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Cryptomeria japonica","family":"Cupressaceae","group":"conifer"},"region":{"scope":"site","countries":["KR"],"place":"Samdong-myeon, Namhae-gun, Gyeongsangnam-do, South Korea","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":10,"r2":0.78,"method":"log10-log10 least-squares regression (SAS Proc Reg)"},"evidence":[{"field":"expression","quote":"log10Y=a+blog10X [Y = dry weight (kg); X: DBH (cm)]","locator":"Materials and Methods 2"},{"field":"expression","quote":"Generalized equations: Foliage (kg) -1.1268 1.8170 0.78 0.002","locator":"Table 4"},{"field":"fit.n_trees","quote":"5본을 선정하였다","locator":"Materials and Methods 2 (5 felled trees per stand density)"}],"check":[{"inputs":{"D":20},"expected":17.2652,"origin":"computed","note":"computed from the Table 4 coefficients"},{"inputs":{"D":35},"expected":47.7278,"origin":"computed","note":"computed from the Table 4 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"log10(Y) = a + b*log10(X); the paper prints no correction factor, so none is applied. Pooled over both stand densities (n = 5 + 5). Sample-tree DBH range is not printed, so none is given."},{"id":"gwon-2014-gen-stem-bark","source":"gwon-2014","name":"Cryptomeria japonica Generalized stem bark (log10, Table 4)","output":{"quantity":"stem_biomass"},"expression":"10^(-1.0906 + 1.4878 * log10(D))","published":{"expression":"10^(-1.0906 + 1.4878 * log10(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Cryptomeria japonica","family":"Cupressaceae","group":"conifer"},"region":{"scope":"site","countries":["KR"],"place":"Samdong-myeon, Namhae-gun, Gyeongsangnam-do, South Korea","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":10,"r2":0.55,"method":"log10-log10 least-squares regression (SAS Proc Reg)"},"evidence":[{"field":"expression","quote":"log10Y=a+blog10X [Y = dry weight (kg); X: DBH (cm)]","locator":"Materials and Methods 2"},{"field":"expression","quote":"Generalized equations: Stem bark (kg) -1.0906 1.4878 0.55 0.022","locator":"Table 4"},{"field":"fit.n_trees","quote":"5본을 선정하였다","locator":"Materials and Methods 2 (5 felled trees per stand density)"}],"check":[{"inputs":{"D":20},"expected":6.9996,"origin":"computed","note":"computed from the Table 4 coefficients"},{"inputs":{"D":35},"expected":16.094,"origin":"computed","note":"computed from the Table 4 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"log10(Y) = a + b*log10(X); the paper prints no correction factor, so none is applied. Stem bark only. Pooled over both stand densities (n = 5 + 5). Sample-tree DBH range is not printed, so none is given."},{"id":"gwon-2014-gen-stem-wood","source":"gwon-2014","name":"Cryptomeria japonica Generalized stem wood (log10, Table 4)","output":{"quantity":"stem_biomass"},"expression":"10^(-0.4501 + 1.8153 * log10(D))","published":{"expression":"10^(-0.4501 + 1.8153 * log10(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Cryptomeria japonica","family":"Cupressaceae","group":"conifer"},"region":{"scope":"site","countries":["KR"],"place":"Samdong-myeon, Namhae-gun, Gyeongsangnam-do, South Korea","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":10,"r2":0.71,"method":"log10-log10 least-squares regression (SAS Proc Reg)"},"evidence":[{"field":"expression","quote":"log10Y=a+blog10X [Y = dry weight (kg); X: DBH (cm)]","locator":"Materials and Methods 2"},{"field":"expression","quote":"Generalized equations: Stem wood (kg) -0.4501 1.8153 0.71 0.004","locator":"Table 4"},{"field":"fit.n_trees","quote":"5본을 선정하였다","locator":"Materials and Methods 2 (5 felled trees per stand density)"}],"check":[{"inputs":{"D":20},"expected":81.5943,"origin":"computed","note":"computed from the Table 4 coefficients"},{"inputs":{"D":35},"expected":225.3444,"origin":"computed","note":"computed from the Table 4 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"log10(Y) = a + b*log10(X); the paper prints no correction factor, so none is applied. Stem wood only (bark excluded). Pooled over both stand densities (n = 5 + 5). Sample-tree DBH range is not printed, so none is given."},{"id":"gwon-2014-gen-stem","source":"gwon-2014","name":"Cryptomeria japonica Generalized stem (wood + bark) (log10, Table 4)","output":{"quantity":"stem_biomass"},"expression":"10^(-0.3799 + 1.7892 * log10(D))","published":{"expression":"10^(-0.3799 + 1.7892 * log10(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Cryptomeria japonica","family":"Cupressaceae","group":"conifer"},"region":{"scope":"site","countries":["KR"],"place":"Samdong-myeon, Namhae-gun, Gyeongsangnam-do, South Korea","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":10,"r2":0.71,"method":"log10-log10 least-squares regression (SAS Proc Reg)"},"evidence":[{"field":"expression","quote":"log10Y=a+blog10X [Y = dry weight (kg); X: DBH (cm)]","locator":"Materials and Methods 2"},{"field":"expression","quote":"Generalized equations: Stem (kg) -0.3799 1.7892 0.71 0.005","locator":"Table 4"},{"field":"fit.n_trees","quote":"5본을 선정하였다","locator":"Materials and Methods 2 (5 felled trees per stand density)"}],"check":[{"inputs":{"D":20},"expected":88.6958,"origin":"computed","note":"computed from the Table 4 coefficients"},{"inputs":{"D":35},"expected":241.4052,"origin":"computed","note":"computed from the Table 4 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"log10(Y) = a + b*log10(X); the paper prints no correction factor, so none is applied. Pooled over both stand densities (n = 5 + 5). Sample-tree DBH range is not printed, so none is given."},{"id":"gwon-2014-high-agb","source":"gwon-2014","name":"Cryptomeria japonica High-density stand aboveground total (log10, Table 4)","output":{"quantity":"agb"},"expression":"10^(-0.7187 + 2.1794 * log10(D))","published":{"expression":"10^(-0.7187 + 2.1794 * log10(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Cryptomeria japonica","family":"Cupressaceae","group":"conifer"},"region":{"scope":"site","countries":["KR"],"place":"Samdong-myeon, Namhae-gun, Gyeongsangnam-do, South Korea","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":5,"r2":0.97,"method":"log10-log10 least-squares regression (SAS Proc Reg)"},"evidence":[{"field":"expression","quote":"log10Y=a+blog10X [Y = dry weight (kg); X: DBH (cm)]","locator":"Materials and Methods 2"},{"field":"expression","quote":"High density: Aboveground total (kg) -0.7187 2.1794 0.97 0.002","locator":"Table 4"},{"field":"fit.n_trees","quote":"5본을 선정하였다","locator":"Materials and Methods 2 (5 felled trees per stand density)"}],"check":[{"inputs":{"D":20},"expected":130.8473,"origin":"computed","note":"computed from the Table 4 coefficients"},{"inputs":{"D":35},"expected":443.0389,"origin":"computed","note":"computed from the Table 4 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"log10(Y) = a + b*log10(X); the paper prints no correction factor, so none is applied. Total includes stem, branch, foliage and cone biomass. Stand-specific (high density), n = 5 trees. Sample-tree DBH range is not printed, so none is given."},{"id":"gwon-2014-high-stem","source":"gwon-2014","name":"Cryptomeria japonica High-density stand stem (wood + bark) (log10, Table 4)","output":{"quantity":"stem_biomass"},"expression":"10^(-0.7195 + 2.0923 * log10(D))","published":{"expression":"10^(-0.7195 + 2.0923 * log10(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Cryptomeria japonica","family":"Cupressaceae","group":"conifer"},"region":{"scope":"site","countries":["KR"],"place":"Samdong-myeon, Namhae-gun, Gyeongsangnam-do, South Korea","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":5,"r2":0.95,"method":"log10-log10 least-squares regression (SAS Proc Reg)"},"evidence":[{"field":"expression","quote":"log10Y=a+blog10X [Y = dry weight (kg); X: DBH (cm)]","locator":"Materials and Methods 2"},{"field":"expression","quote":"High density: Stem (kg) -0.7195 2.0923 0.95 0.004","locator":"Table 4"},{"field":"fit.n_trees","quote":"5본을 선정하였다","locator":"Materials and Methods 2 (5 felled trees per stand density)"}],"check":[{"inputs":{"D":20},"expected":100.6109,"origin":"computed","note":"computed from the Table 4 coefficients"},{"inputs":{"D":35},"expected":324.4543,"origin":"computed","note":"computed from the Table 4 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"log10(Y) = a + b*log10(X); the paper prints no correction factor, so none is applied. Stand-specific (high density), n = 5 trees. Sample-tree DBH range is not printed, so none is given."},{"id":"gwon-2014-low-agb","source":"gwon-2014","name":"Cryptomeria japonica Low-density stand aboveground total (log10, Table 4)","output":{"quantity":"agb"},"expression":"10^(-0.8357 + 2.156 * log10(D))","published":{"expression":"10^(-0.8357 + 2.156 * log10(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Cryptomeria japonica","family":"Cupressaceae","group":"conifer"},"region":{"scope":"site","countries":["KR"],"place":"Samdong-myeon, Namhae-gun, Gyeongsangnam-do, South Korea","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":5,"r2":0.93,"method":"log10-log10 least-squares regression (SAS Proc Reg)"},"evidence":[{"field":"expression","quote":"log10Y=a+blog10X [Y = dry weight (kg); X: DBH (cm)]","locator":"Materials and Methods 2"},{"field":"expression","quote":"Low density: Aboveground total (kg) -0.8357 2.1560 0.93 0.034","locator":"Table 4"},{"field":"fit.n_trees","quote":"5본을 선정하였다","locator":"Materials and Methods 2 (5 felled trees per stand density)"}],"check":[{"inputs":{"D":20},"expected":93.1796,"origin":"computed","note":"computed from the Table 4 coefficients"},{"inputs":{"D":35},"expected":311.3943,"origin":"computed","note":"computed from the Table 4 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"log10(Y) = a + b*log10(X); the paper prints no correction factor, so none is applied. Total includes stem, branch, foliage and cone biomass. Stand-specific (low density), n = 5 trees. Sample-tree DBH range is not printed, so none is given."},{"id":"gwon-2014-low-stem","source":"gwon-2014","name":"Cryptomeria japonica Low-density stand stem (wood + bark) (log10, Table 4)","output":{"quantity":"stem_biomass"},"expression":"10^(-1.0397 + 2.1769 * log10(D))","published":{"expression":"10^(-1.0397 + 2.1769 * log10(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Cryptomeria japonica","family":"Cupressaceae","group":"conifer"},"region":{"scope":"site","countries":["KR"],"place":"Samdong-myeon, Namhae-gun, Gyeongsangnam-do, South Korea","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":5,"r2":0.92,"method":"log10-log10 least-squares regression (SAS Proc Reg)"},"evidence":[{"field":"expression","quote":"log10Y=a+blog10X [Y = dry weight (kg); X: DBH (cm)]","locator":"Materials and Methods 2"},{"field":"expression","quote":"Low density: Stem (kg) -1.0397 2.1769 0.92 0.042","locator":"Table 4"},{"field":"fit.n_trees","quote":"5본을 선정하였다","locator":"Materials and Methods 2 (5 felled trees per stand density)"}],"check":[{"inputs":{"D":20},"expected":62.0172,"origin":"computed","note":"computed from the Table 4 coefficients"},{"inputs":{"D":35},"expected":209.6919,"origin":"computed","note":"computed from the Table 4 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"log10(Y) = a + b*log10(X); the paper prints no correction factor, so none is applied. Stand-specific (low density), n = 5 trees. Sample-tree DBH range is not printed, so none is given."},{"id":"gyenge-2009-agb-laura-dap","source":"gyenge-2009","name":"Schinus patagonicus aboveground dry weight from DAP (Cuadro 1)","output":{"quantity":"agb"},"expression":"-15.902 + 14.498 * D","published":{"expression":"-15.902 + 14.498 * DAP","units":{"DAP":"cm"},"variables":{"DAP":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Schinus patagonicus","family":"Anacardiaceae","group":"broadleaf"},"region":{"scope":"site","countries":["AR"],"place":"Foyel river valley, Río Negro, NW Patagonia, Argentina","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":8,"dbh_min_cm":3.7,"dbh_max_cm":12.8,"method":"stepwise linear regression of tree dry weight on DAP (adjusted R² 0,92)"},"evidence":[{"field":"expression","quote":"T –15,902 + 14,498 * DAP","locator":"Cuadro 1, Schinus patagonicus column, T row (DAP), p. 98"},{"field":"fit.n_trees","quote":"T –15,902 + 14,498 * DAP 0,92 8","locator":"Cuadro 1, R² aj. and n columns, p. 98"},{"field":"fit.dbh_min_cm","quote":"La distribución de DAP de los árboles apeados fue de: laura 3,7 a 12,8 cm","locator":"Métodos, p. 97"}],"check":[{"inputs":{"D":8},"expected":100.082,"origin":"computed","note":"hand-computed from the Cuadro form"},{"inputs":{"D":12},"expected":158.074,"origin":"computed","note":"hand-computed from the Cuadro form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Total aboveground dry weight (T, kg) is the sum of leaves, thin and thick branches and stem, built branch by branch. Adjusted R² 0,92 is printed as R² aj.; the schema field r2 is left out because the paper gives only the adjusted value. No correction factor applies (linear model). The same table gives a basal-diameter (DB, measured at 15 cm above ground) equation, not added because DB at 15 cm is not a canonical variable. Stem dry weight (F) rows are credited to Gyenge et al. (2008) and the DAP volume rows to Reque et al. (2007), so they are not taken from this paper."},{"id":"gyenge-2009-agb-nire-dap","source":"gyenge-2009","name":"Nothofagus antarctica aboveground dry weight from DAP (Cuadro 1)","output":{"quantity":"agb"},"expression":"-53.873 + 7.373 * D","published":{"expression":"-53.873 + 7.373 * DAP","units":{"DAP":"cm"},"variables":{"DAP":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Nothofagus antarctica","family":"Nothofagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["AR"],"place":"Foyel river valley, Río Negro, NW Patagonia, Argentina","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":10,"method":"stepwise linear regression of tree dry weight on DAP (adjusted R² 0,94)"},"evidence":[{"field":"expression","quote":"T –53,873 + 7,373 * DAP","locator":"Cuadro 1, Nothofagus antarctica column, T row (DAP), p. 98"},{"field":"fit.n_trees","quote":"T –53,873 + 7,373 * DAP 0,94 10","locator":"Cuadro 1, R² aj. and n columns, p. 98"}],"check":[{"inputs":{"D":10},"expected":19.857,"origin":"computed","note":"hand-computed from the Cuadro form"},{"inputs":{"D":20},"expected":93.587,"origin":"computed","note":"hand-computed from the Cuadro form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Total aboveground dry weight (T, kg) is the sum of leaves, thin and thick branches and stem, built branch by branch. Adjusted R² 0,94 is printed as R² aj.; the schema field r2 is left out because the paper gives only the adjusted value. No correction factor applies (linear model). The paper felled 16 ñire trees, but the DAP equation was fitted on n = 10, so the printed felled-tree DAP range (6,8 to 21,1 cm) is not assumed to describe this fit and is left out. The same table gives a basal-diameter (DB, measured at 15 cm above ground) equation, not added because DB at 15 cm is not a canonical variable. Stem dry weight (F) rows are credited to Gyenge et al. (2008) and the DAP volume rows to Reque et al. (2007), so they are not taken from this paper."},{"id":"gyenge-2009-agb-radal-dap","source":"gyenge-2009","name":"Lomatia hirsuta aboveground dry weight from DAP (Cuadro 2)","output":{"quantity":"agb"},"expression":"-43.875 + 7.155 * D","published":{"expression":"-43.875 + 7.155 * DAP","units":{"DAP":"cm"},"variables":{"DAP":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Lomatia hirsuta","family":"Proteaceae","group":"broadleaf"},"region":{"scope":"site","countries":["AR"],"place":"Foyel river valley, Río Negro, NW Patagonia, Argentina","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":8,"dbh_min_cm":4.8,"dbh_max_cm":25.4,"method":"stepwise linear regression of tree dry weight on DAP (adjusted R² 0,91)"},"evidence":[{"field":"expression","quote":"T –43,875 + 7,155 * DAP","locator":"Cuadro 2, Lomatia hirsuta column, T row (DAP), p. 98"},{"field":"fit.n_trees","quote":"T –43,875 + 7,155 * DAP 0,91 8","locator":"Cuadro 2, R² aj. and n columns, p. 98"},{"field":"fit.dbh_min_cm","quote":"La distribución de DAP de los árboles apeados fue de: radal 4,8 a 25,4 cm","locator":"Métodos, p. 97"}],"check":[{"inputs":{"D":8},"expected":13.365,"origin":"computed","note":"hand-computed from the Cuadro form"},{"inputs":{"D":20},"expected":99.225,"origin":"computed","note":"hand-computed from the Cuadro form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Total aboveground dry weight (T, kg) is the sum of leaves, thin and thick branches and stem, built branch by branch. Adjusted R² 0,91 is printed as R² aj.; the schema field r2 is left out because the paper gives only the adjusted value. No correction factor applies (linear model). The same table gives a basal-diameter (DB, measured at 15 cm above ground) equation, not added because DB at 15 cm is not a canonical variable. Stem dry weight (F) rows are credited to Gyenge et al. (2008) and the DAP volume rows to Reque et al. (2007), so they are not taken from this paper."},{"id":"gyenge-2009-agb-retamo-dap","source":"gyenge-2009","name":"Diostea juncea aboveground dry weight from DAP (Cuadro 2)","output":{"quantity":"agb"},"expression":"-25.556 + 4.428 * D","published":{"expression":"-25.556 + 4.428 * DAP","units":{"DAP":"cm"},"variables":{"DAP":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Diostea juncea","family":"Verbenaceae","group":"broadleaf"},"region":{"scope":"site","countries":["AR"],"place":"Foyel river valley, Río Negro, NW Patagonia, Argentina","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":10,"dbh_min_cm":5.5,"dbh_max_cm":15.2,"method":"stepwise linear regression of tree dry weight on DAP (adjusted R² 0,79)"},"evidence":[{"field":"expression","quote":"T –25,556 + 4,428 * DAP","locator":"Cuadro 2, Diostea juncea column, T row (DAP), p. 98"},{"field":"fit.n_trees","quote":"T –25,556 + 4,428 * DAP 0,79 10","locator":"Cuadro 2, R² aj. and n columns, p. 98"},{"field":"fit.dbh_min_cm","quote":"La distribución de DAP de los árboles apeados fue de: retamo 5,5 a 15,2 cm","locator":"Métodos, p. 97"}],"check":[{"inputs":{"D":8},"expected":9.868,"origin":"computed","note":"hand-computed from the Cuadro form"},{"inputs":{"D":14},"expected":36.436,"origin":"computed","note":"hand-computed from the Cuadro form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Total aboveground dry weight (T, kg) is the sum of leaves, thin and thick branches and stem, built branch by branch. Adjusted R² 0,79 is printed as R² aj.; the schema field r2 is left out because the paper gives only the adjusted value. No correction factor applies (linear model). The same table gives a basal-diameter (DB, measured at 15 cm above ground) equation, not added because DB at 15 cm is not a canonical variable. Stem dry weight (F) rows are credited to Gyenge et al. (2008) and the DAP volume rows to Reque et al. (2007), so they are not taken from this paper."},{"id":"hasidu-2022-branch-d30","source":"hasidu-2022","name":"Avicennia lanata Branch biomass from D30 (Table 1)","output":{"quantity":"branch_biomass"},"expression":"0.0148 * D30^2.3869","published":{"expression":"0.0148 * D30^2.3869","units":{"D30":"cm"},"variables":{"D30":"D30"},"output_unit":"kg"},"taxon":{"level":"species","name":"Avicennia lanata","family":"Acanthaceae","group":"mangrove"},"region":{"scope":"site","countries":["ID"],"place":"In-active pond, Muna Regency, Southeast Sulawesi","biomes":["tropical","mangrove"]},"stand":"natural","fit":{"n_trees":13,"r2":0.876,"method":"power-law regression Y = g X^h"},"evidence":[{"field":"expression","quote":"coefficient g: 0.0148, coefficient h: 2.3869, R2: 0.8760","locator":"Section 3.1, p. 401"},{"field":"fit.n_trees","quote":"A total of 13 individuals of A. lanata with various DBH sizes was collected","locator":"Section 2.2, p. 400"}],"check":[{"inputs":{"D30":3},"expected":0.2038,"origin":"computed","note":"computed from the published form Y = g X^h"},{"inputs":{"D30":6},"expected":1.0657,"origin":"computed","note":"computed from the published form Y = g X^h"},{"inputs":{"D30":9},"expected":2.8051,"origin":"computed","note":"computed from the published form Y = g X^h"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Form Y = g X^h, no correction factor stated. The paper does not state units in the text; DBH in cm and biomass in kg are read from Table 2 and the axis labels of Figures 2 and 3. The DBH range of the 13 harvested trees is not stated (Table 2 describes the stand), so no range is given. Young natural regeneration: the stand census in Table 2 ran from 2.7 to 9.4 cm DBH and the stand was under 10 m tall (Section 2.1)."},{"id":"hasidu-2022-branch-dbh","source":"hasidu-2022","name":"Avicennia lanata Branch biomass from DBH (Table 1)","output":{"quantity":"branch_biomass"},"expression":"0.0304 * D^2.2563","published":{"expression":"0.0304 * DBH^2.2563","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Avicennia lanata","family":"Acanthaceae","group":"mangrove"},"region":{"scope":"site","countries":["ID"],"place":"In-active pond, Muna Regency, Southeast Sulawesi","biomes":["tropical","mangrove"]},"stand":"natural","fit":{"n_trees":13,"r2":0.896,"method":"power-law regression Y = g X^h"},"evidence":[{"field":"expression","quote":"coefficient g: 0.0304, coefficient h: 2.2563, R2: 0.8960","locator":"Section 3.1, p. 401"},{"field":"fit.n_trees","quote":"A total of 13 individuals of A. lanata with various DBH sizes was collected","locator":"Section 2.2, p. 400"}],"check":[{"inputs":{"D":3},"expected":0.3626,"origin":"computed","note":"computed from the published form Y = g X^h"},{"inputs":{"D":6},"expected":1.7323,"origin":"computed","note":"computed from the published form Y = g X^h"},{"inputs":{"D":9},"expected":4.3245,"origin":"computed","note":"computed from the published form Y = g X^h"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Form Y = g X^h, no correction factor stated. The paper does not state units in the text; DBH in cm and biomass in kg are read from Table 2 and the axis labels of Figures 2 and 3. The DBH range of the 13 harvested trees is not stated (Table 2 describes the stand), so no range is given. Young natural regeneration: the stand census in Table 2 ran from 2.7 to 9.4 cm DBH and the stand was under 10 m tall (Section 2.1)."},{"id":"hasidu-2022-leaf-d30","source":"hasidu-2022","name":"Avicennia lanata Leaf biomass from D30 (Table 1)","output":{"quantity":"foliage_biomass"},"expression":"0.0201 * D30^2.1127","published":{"expression":"0.0201 * D30^2.1127","units":{"D30":"cm"},"variables":{"D30":"D30"},"output_unit":"kg"},"taxon":{"level":"species","name":"Avicennia lanata","family":"Acanthaceae","group":"mangrove"},"region":{"scope":"site","countries":["ID"],"place":"In-active pond, Muna Regency, Southeast Sulawesi","biomes":["tropical","mangrove"]},"stand":"natural","fit":{"n_trees":13,"r2":0.938,"method":"power-law regression Y = g X^h"},"evidence":[{"field":"expression","quote":"coefficient g: 0.0201, coefficient h: 2.1127, R2: 0.9380","locator":"Section 3.1, p. 401"},{"field":"fit.n_trees","quote":"A total of 13 individuals of A. lanata with various DBH sizes was collected","locator":"Section 2.2, p. 400"}],"check":[{"inputs":{"D30":3},"expected":0.2047,"origin":"computed","note":"computed from the published form Y = g X^h"},{"inputs":{"D30":6},"expected":0.8855,"origin":"computed","note":"computed from the published form Y = g X^h"},{"inputs":{"D30":9},"expected":2.0856,"origin":"computed","note":"computed from the published form Y = g X^h"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Form Y = g X^h, no correction factor stated. The paper does not state units in the text; DBH in cm and biomass in kg are read from Table 2 and the axis labels of Figures 2 and 3. The DBH range of the 13 harvested trees is not stated (Table 2 describes the stand), so no range is given. Young natural regeneration: the stand census in Table 2 ran from 2.7 to 9.4 cm DBH and the stand was under 10 m tall (Section 2.1)."},{"id":"hasidu-2022-leaf-dbh","source":"hasidu-2022","name":"Avicennia lanata Leaf biomass from DBH (Table 1)","output":{"quantity":"foliage_biomass"},"expression":"0.0394 * D^1.9734","published":{"expression":"0.0394 * DBH^1.9734","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Avicennia lanata","family":"Acanthaceae","group":"mangrove"},"region":{"scope":"site","countries":["ID"],"place":"In-active pond, Muna Regency, Southeast Sulawesi","biomes":["tropical","mangrove"]},"stand":"natural","fit":{"n_trees":13,"r2":0.937,"method":"power-law regression Y = g X^h"},"evidence":[{"field":"expression","quote":"coefficient g: 0.0394, coefficient h: 1.9734","locator":"Section 3.1, p. 401"},{"field":"fit.n_trees","quote":"A total of 13 individuals of A. lanata with various DBH sizes was collected","locator":"Section 2.2, p. 400"}],"check":[{"inputs":{"D":3},"expected":0.3444,"origin":"computed","note":"computed from the published form Y = g X^h"},{"inputs":{"D":6},"expected":1.3524,"origin":"computed","note":"computed from the published form Y = g X^h"},{"inputs":{"D":9},"expected":3.0102,"origin":"computed","note":"computed from the published form Y = g X^h"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Form Y = g X^h, no correction factor stated. The paper does not state units in the text; DBH in cm and biomass in kg are read from Table 2 and the axis labels of Figures 2 and 3. The DBH range of the 13 harvested trees is not stated (Table 2 describes the stand), so no range is given. Young natural regeneration: the stand census in Table 2 ran from 2.7 to 9.4 cm DBH and the stand was under 10 m tall (Section 2.1)."},{"id":"hasidu-2022-stem-d30","source":"hasidu-2022","name":"Avicennia lanata Stem biomass from D30 (Table 1)","output":{"quantity":"stem_biomass"},"expression":"0.0535 * D30^2.4851","published":{"expression":"0.0535 * D30^2.4851","units":{"D30":"cm"},"variables":{"D30":"D30"},"output_unit":"kg"},"taxon":{"level":"species","name":"Avicennia lanata","family":"Acanthaceae","group":"mangrove"},"region":{"scope":"site","countries":["ID"],"place":"In-active pond, Muna Regency, Southeast Sulawesi","biomes":["tropical","mangrove"]},"stand":"natural","fit":{"n_trees":13,"r2":0.9699,"method":"power-law regression Y = g X^h"},"evidence":[{"field":"expression","quote":"coefficient g: 0.0535, coefficient h: 2.4851, R2: 0.9699","locator":"Section 3.1, p. 401"},{"field":"fit.n_trees","quote":"A total of 13 individuals of A. lanata with various DBH sizes was collected","locator":"Section 2.2, p. 400"}],"check":[{"inputs":{"D30":3},"expected":0.8204,"origin":"computed","note":"computed from the published form Y = g X^h"},{"inputs":{"D30":6},"expected":4.5934,"origin":"computed","note":"computed from the published form Y = g X^h"},{"inputs":{"D30":9},"expected":12.5818,"origin":"computed","note":"computed from the published form Y = g X^h"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Form Y = g X^h, no correction factor stated. The paper does not state units in the text; DBH in cm and biomass in kg are read from Table 2 and the axis labels of Figures 2 and 3. The DBH range of the 13 harvested trees is not stated (Table 2 describes the stand), so no range is given. Young natural regeneration: the stand census in Table 2 ran from 2.7 to 9.4 cm DBH and the stand was under 10 m tall (Section 2.1)."},{"id":"hasidu-2022-stem-dbh","source":"hasidu-2022","name":"Avicennia lanata Stem biomass from DBH (Table 1)","output":{"quantity":"stem_biomass"},"expression":"0.1143 * D^2.3429","published":{"expression":"0.1143 * DBH^2.3429","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Avicennia lanata","family":"Acanthaceae","group":"mangrove"},"region":{"scope":"site","countries":["ID"],"place":"In-active pond, Muna Regency, Southeast Sulawesi","biomes":["tropical","mangrove"]},"stand":"natural","fit":{"n_trees":13,"r2":0.987,"method":"power-law regression Y = g X^h"},"evidence":[{"field":"expression","quote":"coefficient g: 0.1143, coefficient h: 2.3429","locator":"Section 3.1, p. 401"},{"field":"fit.n_trees","quote":"A total of 13 individuals of A. lanata with various DBH sizes was collected","locator":"Section 2.2, p. 400"}],"check":[{"inputs":{"D":3},"expected":1.4993,"origin":"computed","note":"computed from the published form Y = g X^h"},{"inputs":{"D":6},"expected":7.6064,"origin":"computed","note":"computed from the published form Y = g X^h"},{"inputs":{"D":9},"expected":19.6671,"origin":"computed","note":"computed from the published form Y = g X^h"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Form Y = g X^h, no correction factor stated. The paper does not state units in the text; DBH in cm and biomass in kg are read from Table 2 and the axis labels of Figures 2 and 3. The DBH range of the 13 harvested trees is not stated (Table 2 describes the stand), so no range is given. Young natural regeneration: the stand census in Table 2 ran from 2.7 to 9.4 cm DBH and the stand was under 10 m tall (Section 2.1)."},{"id":"hasidu-2022-w-d30","source":"hasidu-2022","name":"Avicennia lanata Total aboveground biomass from D30 (Table 1)","output":{"quantity":"agb"},"expression":"0.0862 * D30^2.4243","published":{"expression":"0.0862 * D30^2.4243","units":{"D30":"cm"},"variables":{"D30":"D30"},"output_unit":"kg"},"taxon":{"level":"species","name":"Avicennia lanata","family":"Acanthaceae","group":"mangrove"},"region":{"scope":"site","countries":["ID"],"place":"In-active pond, Muna Regency, Southeast Sulawesi","biomes":["tropical","mangrove"]},"stand":"natural","fit":{"n_trees":13,"r2":0.9743,"method":"power-law regression Y = g X^h"},"evidence":[{"field":"expression","quote":"D30 W 0.0862 2.4243 0.9743","locator":"Table 1, p. 401"},{"field":"fit.n_trees","quote":"A total of 13 individuals of A. lanata with various DBH sizes was collected","locator":"Section 2.2, p. 400"},{"field":"output.quantity","quote":"W = ∑ Ws + Wb + Wl","locator":"Eq. 4, p. 401"}],"check":[{"inputs":{"D30":3},"expected":1.2365,"origin":"computed","note":"computed from the published form Y = g X^h"},{"inputs":{"D30":6},"expected":6.6371,"origin":"computed","note":"computed from the published form Y = g X^h"},{"inputs":{"D30":9},"expected":17.7369,"origin":"computed","note":"computed from the published form Y = g X^h"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Form Y = g X^h, no correction factor stated. The paper does not state units in the text; DBH in cm and biomass in kg are read from Table 2 and the axis labels of Figures 2 and 3. The DBH range of the 13 harvested trees is not stated (Table 2 describes the stand), so no range is given. Young natural regeneration: the stand census in Table 2 ran from 2.7 to 9.4 cm DBH and the stand was under 10 m tall (Section 2.1). Total W is the sum of stem, branch and leaf biomass (Eq. 4), so it includes foliage."},{"id":"hasidu-2022-w-dbh","source":"hasidu-2022","name":"Avicennia lanata Total aboveground biomass from DBH (Table 1)","output":{"quantity":"agb"},"expression":"0.1814 * D^2.2825","published":{"expression":"0.1814 * DBH^2.2825","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Avicennia lanata","family":"Acanthaceae","group":"mangrove"},"region":{"scope":"site","countries":["ID"],"place":"In-active pond, Muna Regency, Southeast Sulawesi","biomes":["tropical","mangrove"]},"stand":"natural","fit":{"n_trees":13,"r2":0.9888,"method":"power-law regression Y = g X^h"},"evidence":[{"field":"expression","quote":"0.1814 x DBH 2.2825, R2 = 0.9888, n = 13","locator":"Section 4.1, p. 404"},{"field":"fit.n_trees","quote":"A total of 13 individuals of A. lanata with various DBH sizes was collected","locator":"Section 2.2, p. 400"},{"field":"output.quantity","quote":"W = ∑ Ws + Wb + Wl","locator":"Eq. 4, p. 401"}],"check":[{"inputs":{"D":3},"expected":2.2267,"origin":"computed","note":"computed from the published form Y = g X^h"},{"inputs":{"D":6},"expected":10.8335,"origin":"computed","note":"computed from the published form Y = g X^h"},{"inputs":{"D":9},"expected":27.3335,"origin":"computed","note":"computed from the published form Y = g X^h"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Form Y = g X^h, no correction factor stated. The paper does not state units in the text; DBH in cm and biomass in kg are read from Table 2 and the axis labels of Figures 2 and 3. The DBH range of the 13 harvested trees is not stated (Table 2 describes the stand), so no range is given. Young natural regeneration: the stand census in Table 2 ran from 2.7 to 9.4 cm DBH and the stand was under 10 m tall (Section 2.1). Total W is the sum of stem, branch and leaf biomass (Eq. 4), so it includes foliage."},{"id":"herrera-vasquez-2022-polylepis-racemosa","source":"herrera-vasquez-2022","name":"Polylepis racemosa AGB from stem diameter at 50 cm (model 6)","output":{"quantity":"agb"},"expression":"exp(2.394988 + 0.082807 * D50)","published":{"expression":"exp(2.394988 + 0.082807 * D50)","units":{"D50":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Polylepis racemosa","family":"Rosaceae","group":"broadleaf"},"region":{"scope":"site","countries":["PE"],"place":"Relict forest, Bella Andina community, Chota, Cajamarca, Peru","biomes":["tropical","montane"]},"stand":"natural","fit":{"n_trees":11,"r2":0.932,"method":"OLS on ln(biomass) vs D50 (model 6 of 10 tested); no correction factor reported"},"evidence":[{"field":"expression","quote":"LnBA=2,394988+0,082807*D50; el que alcanza un R2: 0,932","locator":"Results, text under Figura 8"},{"field":"fit.n_trees","quote":"Las medidas dasométricas del diámetro 50 centímetros (D50), altura total (ht), número de ramas (NR) y diámetro de copa (DC) de los 11 árboles de Polylepis racemosa","locator":"Results, before Tabla 2"},{"field":"notes","quote":"La marca de clase de D50 centímetros (Figura 4), se distribuye desde 7,5 a 36,2","locator":"Results, after Tabla 2"}],"check":[{"inputs":{"D50":21.6},"expected":65.6029,"origin":"computed","note":"computed from the published form; Tabla 3 tree F (D50 21,6 cm) weighed 59,723 kg"},{"inputs":{"D50":36.2},"expected":219.7744,"origin":"computed","note":"computed from the published form; Tabla 3 tree K weighed 186,968 kg"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Uses D50, the stem diameter 50 cm above ground (new canonical variable D50, cm), not DBH. Exponential (not power) form: ln(biomass) is linear in D50. Fitted on 11 destructively sampled trees, one per diameter class, D50 7,5–36,2 cm, total height 1,8–7,0 m; samples oven-dried at 105 °C. The listed D50 values of the sampled trees equal the class marks of Tabla 1, so they may be class midpoints rather than measured diameters. Undergraduate thesis, small sample: use with caution."},{"id":"huy-2016-dipterocarpus-d","source":"huy-2016","name":"Dipterocarpus genus, Vietnam, AGB from D (D1, Eq. 18)","output":{"quantity":"agb"},"expression":"0.03713 * D^2.73813","published":{"expression":"0.03713 * DBH^2.73813","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"genus","name":"Dipterocarpus","family":"Dipterocarpaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["VN"],"place":"Dipterocarp forests, Central Highlands and Southeast ecoregions, Vietnam","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":94,"dbh_min_cm":4.9,"dbh_max_cm":48.8,"h_min_m":3.8,"h_max_m":23.5,"method":"nonlinear weighted least squares (power variance function)"},"evidence":[{"field":"expression","quote":"Dipterocarpus : AGB = 0.03713 × DBH2.73813","locator":"Eq. 18, p. 11"},{"field":"fit.n_trees","quote":"n 94 (Dipterocarpus Genus)","locator":"Table 2"}],"check":[{"inputs":{"D":10},"expected":20.317,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":20},"expected":135.55,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":40},"expected":904.43,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"AGB is the sum of stem, branch and foliage dry mass. Fitted on the whole dataset with the fixed-effects model; the random ecoregion effect was not retained. No correction factor is stated."},{"id":"huy-2016-m1-d","source":"huy-2016","name":"Dipterocarp forests Vietnam, mixed-species AGB from D (M1)","output":{"quantity":"agb"},"expression":"0.04742 * D^2.66663","published":{"expression":"0.04742 * DBH^2.66663","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Mixed species, dipterocarp forest (26 species)","group":"broadleaf"},"region":{"scope":"regional","countries":["VN"],"place":"Dipterocarp forests, Central Highlands and Southeast ecoregions, Vietnam","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":222,"dbh_min_cm":3.4,"dbh_max_cm":48.8,"h_min_m":2.5,"h_max_m":23.5,"method":"nonlinear weighted least squares (power variance function)"},"evidence":[{"field":"expression","quote":"M1 DBH AGB = a × DBHb; a 0.04742, b 2.66663","locator":"Table 4"},{"field":"fit.n_trees","quote":"A total of 222 trees were destructively sampled","locator":"Section 2.2"},{"field":"fit.dbh_min_cm","quote":"Min 3.4 / Max 48.8 (DBH, Mixed-Species)","locator":"Table 2"}],"check":[{"inputs":{"D":10},"expected":22.009,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":20},"expected":139.74,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":40},"expected":887.28,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"AGB is the sum of stem, branch and foliage dry mass. Fitted on the whole dataset with the fixed-effects model; the random ecoregion effect was not retained. No correction factor is stated."},{"id":"huy-2016-m2-d-h","source":"huy-2016","name":"Dipterocarp forests Vietnam, mixed-species AGB from D and H (M2)","output":{"quantity":"agb"},"expression":"0.03844 * D^2.40756 * H^0.40408","published":{"expression":"0.03844 * DBH^2.40756 * H^0.40408","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Mixed species, dipterocarp forest (26 species)","group":"broadleaf"},"region":{"scope":"regional","countries":["VN"],"place":"Dipterocarp forests, Central Highlands and Southeast ecoregions, Vietnam","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":222,"dbh_min_cm":3.4,"dbh_max_cm":48.8,"h_min_m":2.5,"h_max_m":23.5,"method":"nonlinear weighted least squares (power variance function)"},"evidence":[{"field":"expression","quote":"M2 DBH, H AGB = a × DBHb × Hc; a 0.03844, b 2.40756, c 0.40408","locator":"Table 4"},{"field":"fit.n_trees","quote":"A total of 222 trees were destructively sampled","locator":"Section 2.2"},{"field":"fit.dbh_min_cm","quote":"Min 3.4 / Max 48.8 (DBH, Mixed-Species)","locator":"Table 2"}],"check":[{"inputs":{"D":10,"H":8},"expected":22.765,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":14},"expected":151.43,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":40,"H":20},"expected":928.02,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"AGB is the sum of stem, branch and foliage dry mass. Fitted on the whole dataset with the fixed-effects model; the random ecoregion effect was not retained. No correction factor is stated."},{"id":"huy-2016-m3-d-rho","source":"huy-2016","name":"Dipterocarp forests Vietnam, mixed-species AGB from D and wood density (M3)","output":{"quantity":"agb"},"expression":"0.07126 * D^2.6094 * rho^0.59275","published":{"expression":"0.07126 * DBH^2.60940 * WD^0.59275","units":{"DBH":"cm","WD":"g/cm3"},"variables":{"DBH":"D","WD":"rho"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Mixed species, dipterocarp forest (26 species)","group":"broadleaf"},"region":{"scope":"regional","countries":["VN"],"place":"Dipterocarp forests, Central Highlands and Southeast ecoregions, Vietnam","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":222,"dbh_min_cm":3.4,"dbh_max_cm":48.8,"h_min_m":2.5,"h_max_m":23.5,"method":"nonlinear weighted least squares (power variance function)"},"evidence":[{"field":"expression","quote":"M3 DBH, WD AGB = a × DBHb × WDc; a 0.07126, b 2.60940, c 0.59275","locator":"Table 4"},{"field":"fit.n_trees","quote":"A total of 222 trees were destructively sampled","locator":"Section 2.2"},{"field":"fit.dbh_min_cm","quote":"Min 3.4 / Max 48.8 (DBH, Mixed-Species)","locator":"Table 2"}],"check":[{"inputs":{"D":10,"rho":0.55},"expected":20.34,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"rho":0.65},"expected":137.04,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":40,"rho":0.75},"expected":910.34,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"AGB is the sum of stem, branch and foliage dry mass. Fitted on the whole dataset with the fixed-effects model; the random ecoregion effect was not retained. No correction factor is stated. The standard error printed for c in Table 4 equals the estimate itself and looks like a typo; it is not used."},{"id":"huy-2016-m4-d-h-rho","source":"huy-2016","name":"Dipterocarp forests Vietnam, mixed-species AGB from D, H and wood density (M4, Eq. 17)","output":{"quantity":"agb"},"expression":"0.06203 * D^2.2643 * H^0.51415 * rho^0.79456","published":{"expression":"0.06203 * DBH^2.26430 * H^0.51415 * WD^0.79456","units":{"DBH":"cm","H":"m","WD":"g/cm3"},"variables":{"DBH":"D","H":"H","WD":"rho"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Mixed species, dipterocarp forest (26 species)","group":"broadleaf"},"region":{"scope":"regional","countries":["VN"],"place":"Dipterocarp forests, Central Highlands and Southeast ecoregions, Vietnam","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":222,"dbh_min_cm":3.4,"dbh_max_cm":48.8,"h_min_m":2.5,"h_max_m":23.5,"method":"nonlinear weighted least squares (power variance function)"},"evidence":[{"field":"expression","quote":"AGB = 0.06203 × DBH2.26430 × H0.51415 × WD0.79456","locator":"Eq. 17, p. 9"},{"field":"fit.n_trees","quote":"A total of 222 trees were destructively sampled","locator":"Section 2.2"},{"field":"fit.dbh_min_cm","quote":"Min 3.4 / Max 48.8 (DBH, Mixed-Species)","locator":"Table 2"}],"check":[{"inputs":{"D":10,"H":8,"rho":0.55},"expected":20.65,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":14,"rho":0.65},"expected":151.06,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":40,"H":20,"rho":0.75},"expected":976.79,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"AGB is the sum of stem, branch and foliage dry mass. Fitted on the whole dataset with the fixed-effects model; the random ecoregion effect was not retained. No correction factor is stated. Recommended by the authors for mixed species when H and WD are available."},{"id":"huy-2016-shorea-d","source":"huy-2016","name":"Shorea genus, Vietnam, AGB from D (S1, Eq. 19)","output":{"quantity":"agb"},"expression":"0.07483 * D^2.54496","published":{"expression":"0.07483 * DBH^2.54496","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"genus","name":"Shorea","family":"Dipterocarpaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["VN"],"place":"Dipterocarp forests, Central Highlands and Southeast ecoregions, Vietnam","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":36,"dbh_min_cm":5.6,"dbh_max_cm":23,"h_min_m":4.4,"h_max_m":14.1,"method":"nonlinear weighted least squares (power variance function)"},"evidence":[{"field":"expression","quote":"Shorea: AGB = 0.07483 × DBH2.54496","locator":"Eq. 19, p. 11"},{"field":"fit.n_trees","quote":"n 36 (Shorea Genus)","locator":"Table 2"}],"check":[{"inputs":{"D":8},"expected":14.873,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":15},"expected":73.651,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":22},"expected":195.2,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"AGB is the sum of stem, branch and foliage dry mass. Fitted on the whole dataset with the fixed-effects model; the random ecoregion effect was not retained. No correction factor is stated. The DBH range of the Shorea data stops at 23 cm; do not extrapolate."},{"id":"huy-2019-d-agb","source":"huy-2019","name":"Bambusa procera plant aboveground biomass (culm + branches + leaves), D only system (combination 1)","output":{"quantity":"agb"},"expression":"0.098137 * D^2.365691 + 0.052164 * D^2.004830 + 0.030439 * D^1.741870","published":{"expression":"0.098137 * D^2.365691 + 0.052164 * D^2.004830 + 0.030439 * D^1.741870","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Bambusa procera","family":"Poaceae","group":"bamboo"},"region":{"scope":"regional","countries":["VN"],"place":"Dak Lak and Dak Nong provinces, Central Highlands, Viet Nam","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":83,"dbh_min_cm":3.6,"dbh_max_cm":9.5,"method":"weighted nonlinear seemingly unrelated regression (GLS) fit of an additive component system"},"evidence":[{"field":"expression","quote":"AGB = Bcu + Bbr + Ble = a1 × Db1 + a2 × Db2 + a3 × Db3 (parameters Bcu = a1 × Db1: a1 0.098137 b1 2.365691; Bbr = a2 × Db2: a2 0.052164 b2 2.004830; Ble = a3 × Db3: a3 0.030439 b3 1.741870)","locator":"Table 5 (forms in Eq. 4-7 and Section 3.2)"},{"field":"fit.n_trees","quote":"A total of 83 bamboo culms covering the full range of sizes were destructively sampled with D ranging from 3.6–9.5 cm","locator":"Section 2.3"}],"check":[{"inputs":{"D":5},"expected":6.2361,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":8},"expected":17.947,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"One bamboo culm (plant) per record; D is culm diameter at breast height. Biomass in kg dry mass per plant. Component equations are fitted simultaneously (SUR) so the AGB equation is the sum of the three components. Parameters as printed in Table 5; the paper reports adjusted R2 only, so r2 is omitted."},{"id":"huy-2019-d-branch","source":"huy-2019","name":"Bambusa procera branch biomass, D only system (combination 1)","output":{"quantity":"branch_biomass"},"expression":"0.052164 * D^2.004830","published":{"expression":"0.052164 * D^2.004830","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Bambusa procera","family":"Poaceae","group":"bamboo"},"region":{"scope":"regional","countries":["VN"],"place":"Dak Lak and Dak Nong provinces, Central Highlands, Viet Nam","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":83,"dbh_min_cm":3.6,"dbh_max_cm":9.5,"method":"weighted nonlinear seemingly unrelated regression (GLS) fit of an additive component system"},"evidence":[{"field":"expression","quote":"Bbr = a2 × Db2 (parameters a2 0.052164 b2 2.004830)","locator":"Table 5 (forms in Eq. 4-7 and Section 3.2)"},{"field":"fit.n_trees","quote":"A total of 83 bamboo culms covering the full range of sizes were destructively sampled with D ranging from 3.6–9.5 cm","locator":"Section 2.3"}],"check":[{"inputs":{"D":5},"expected":1.3143,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":8},"expected":3.3722,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"One bamboo culm (plant) per record; D is culm diameter at breast height. Biomass in kg dry mass per plant. Component equations are fitted simultaneously (SUR) so the AGB equation is the sum of the three components. Parameters as printed in Table 5; the paper reports adjusted R2 only, so r2 is omitted."},{"id":"huy-2019-d-culm","source":"huy-2019","name":"Bambusa procera culm (stem) biomass, D only system (combination 1)","output":{"quantity":"stem_biomass"},"expression":"0.098137 * D^2.365691","published":{"expression":"0.098137 * D^2.365691","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Bambusa procera","family":"Poaceae","group":"bamboo"},"region":{"scope":"regional","countries":["VN"],"place":"Dak Lak and Dak Nong provinces, Central Highlands, Viet Nam","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":83,"dbh_min_cm":3.6,"dbh_max_cm":9.5,"method":"weighted nonlinear seemingly unrelated regression (GLS) fit of an additive component system"},"evidence":[{"field":"expression","quote":"Bcu = a1 × Db1 (parameters a1 0.098137 b1 2.365691)","locator":"Table 5 (forms in Eq. 4-7 and Section 3.2)"},{"field":"fit.n_trees","quote":"A total of 83 bamboo culms covering the full range of sizes were destructively sampled with D ranging from 3.6–9.5 cm","locator":"Section 2.3"}],"check":[{"inputs":{"D":5},"expected":4.4196,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":8},"expected":13.4358,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"One bamboo culm (plant) per record; D is culm diameter at breast height. Biomass in kg dry mass per plant. Component equations are fitted simultaneously (SUR) so the AGB equation is the sum of the three components. Parameters as printed in Table 5; the paper reports adjusted R2 only, so r2 is omitted."},{"id":"huy-2019-d-leaf","source":"huy-2019","name":"Bambusa procera leaf biomass, D only system (combination 1)","output":{"quantity":"foliage_biomass"},"expression":"0.030439 * D^1.741870","published":{"expression":"0.030439 * D^1.741870","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Bambusa procera","family":"Poaceae","group":"bamboo"},"region":{"scope":"regional","countries":["VN"],"place":"Dak Lak and Dak Nong provinces, Central Highlands, Viet Nam","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":83,"dbh_min_cm":3.6,"dbh_max_cm":9.5,"method":"weighted nonlinear seemingly unrelated regression (GLS) fit of an additive component system"},"evidence":[{"field":"expression","quote":"Ble = a3 × Db3 (parameters a3 0.030439 b3 1.741870)","locator":"Table 5 (forms in Eq. 4-7 and Section 3.2)"},{"field":"fit.n_trees","quote":"A total of 83 bamboo culms covering the full range of sizes were destructively sampled with D ranging from 3.6–9.5 cm","locator":"Section 2.3"}],"check":[{"inputs":{"D":5},"expected":0.5023,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":8},"expected":1.1389,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"One bamboo culm (plant) per record; D is culm diameter at breast height. Biomass in kg dry mass per plant. Component equations are fitted simultaneously (SUR) so the AGB equation is the sum of the three components. Parameters as printed in Table 5; the paper reports adjusted R2 only, so r2 is omitted."},{"id":"huy-2019-dh-agb","source":"huy-2019","name":"Bambusa procera plant aboveground biomass (culm + branches + leaves), D and H, two-predictor system (combination 6)","output":{"quantity":"agb"},"expression":"0.02269 * (D^2 * H)^0.90703 + 0.02015 * (D^2 * H)^0.72251 + 0.03420 * D^1.67330","published":{"expression":"0.02269 * (D^2 * H)^0.90703 + 0.02015 * (D^2 * H)^0.72251 + 0.03420 * D^1.67330","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Bambusa procera","family":"Poaceae","group":"bamboo"},"region":{"scope":"regional","countries":["VN"],"place":"Dak Lak and Dak Nong provinces, Central Highlands, Viet Nam","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":83,"dbh_min_cm":3.6,"dbh_max_cm":9.5,"h_min_m":6.1,"h_max_m":25.4,"method":"weighted nonlinear seemingly unrelated regression (GLS) fit of an additive component system"},"evidence":[{"field":"expression","quote":"AGB = Bcu + Bbr + Ble = a1 × (D2H)b1 + a2 × (D2H)b2 + a3 × Db3 (parameters Bcu = a1 × (D2H)b1: a1 0.02269 b1 0.90703; Bbr = a2 × (D2H)b2: a2 0.02015 b2 0.72251; Ble = a3 × Db3: a3 0.03420 b3 1.67330)","locator":"Table 4 (forms in Eqs. 16-19)"},{"field":"fit.n_trees","quote":"A total of 83 bamboo culms covering the full range of sizes were destructively sampled with D ranging from 3.6–9.5 cm, with H of 6.1–25.4 m","locator":"Section 2.3"}],"check":[{"inputs":{"D":5,"H":12},"expected":5.7526,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":8,"H":20},"expected":19.5854,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"One bamboo culm (plant) per record; D is culm diameter at breast height. Biomass in kg dry mass per plant. Component equations are fitted simultaneously (SUR) so the AGB equation is the sum of the three components. Parameters as printed in Table 4; the paper reports adjusted R2 only, so r2 is omitted."},{"id":"huy-2019-dh-branch","source":"huy-2019","name":"Bambusa procera branch biomass, D and H, two-predictor system (combination 6)","output":{"quantity":"branch_biomass"},"expression":"0.02015 * (D^2 * H)^0.72251","published":{"expression":"0.02015 * (D^2 * H)^0.72251","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Bambusa procera","family":"Poaceae","group":"bamboo"},"region":{"scope":"regional","countries":["VN"],"place":"Dak Lak and Dak Nong provinces, Central Highlands, Viet Nam","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":83,"dbh_min_cm":3.6,"dbh_max_cm":9.5,"h_min_m":6.1,"h_max_m":25.4,"method":"weighted nonlinear seemingly unrelated regression (GLS) fit of an additive component system"},"evidence":[{"field":"expression","quote":"Bbr = a2 × (D2H)b2 (parameters a2 0.02015 b2 0.72251)","locator":"Table 4 (forms in Eqs. 16-19)"},{"field":"fit.n_trees","quote":"A total of 83 bamboo culms covering the full range of sizes were destructively sampled with D ranging from 3.6–9.5 cm, with H of 6.1–25.4 m","locator":"Section 2.3"}],"check":[{"inputs":{"D":5,"H":12},"expected":1.2417,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":8,"H":20},"expected":3.5421,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"One bamboo culm (plant) per record; D is culm diameter at breast height. Biomass in kg dry mass per plant. Component equations are fitted simultaneously (SUR) so the AGB equation is the sum of the three components. Parameters as printed in Table 4; the paper reports adjusted R2 only, so r2 is omitted."},{"id":"huy-2019-dh-culm","source":"huy-2019","name":"Bambusa procera culm (stem) biomass, D and H, two-predictor system (combination 6)","output":{"quantity":"stem_biomass"},"expression":"0.02269 * (D^2 * H)^0.90703","published":{"expression":"0.02269 * (D^2 * H)^0.90703","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Bambusa procera","family":"Poaceae","group":"bamboo"},"region":{"scope":"regional","countries":["VN"],"place":"Dak Lak and Dak Nong provinces, Central Highlands, Viet Nam","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":83,"dbh_min_cm":3.6,"dbh_max_cm":9.5,"h_min_m":6.1,"h_max_m":25.4,"method":"weighted nonlinear seemingly unrelated regression (GLS) fit of an additive component system"},"evidence":[{"field":"expression","quote":"Bcu = a1 × (D2H)b1 (parameters a1 0.02269 b1 0.90703)","locator":"Table 4 (forms in Eqs. 16-19)"},{"field":"fit.n_trees","quote":"A total of 83 bamboo culms covering the full range of sizes were destructively sampled with D ranging from 3.6–9.5 cm, with H of 6.1–25.4 m","locator":"Section 2.3"}],"check":[{"inputs":{"D":5,"H":12},"expected":4.0055,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":8,"H":20},"expected":14.9337,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"One bamboo culm (plant) per record; D is culm diameter at breast height. Biomass in kg dry mass per plant. Component equations are fitted simultaneously (SUR) so the AGB equation is the sum of the three components. Parameters as printed in Table 4; the paper reports adjusted R2 only, so r2 is omitted."},{"id":"huy-2019-dh-leaf","source":"huy-2019","name":"Bambusa procera leaf biomass, D and H, two-predictor system (combination 6)","output":{"quantity":"foliage_biomass"},"expression":"0.03420 * D^1.67330","published":{"expression":"0.03420 * D^1.67330","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Bambusa procera","family":"Poaceae","group":"bamboo"},"region":{"scope":"regional","countries":["VN"],"place":"Dak Lak and Dak Nong provinces, Central Highlands, Viet Nam","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":83,"dbh_min_cm":3.6,"dbh_max_cm":9.5,"h_min_m":6.1,"h_max_m":25.4,"method":"weighted nonlinear seemingly unrelated regression (GLS) fit of an additive component system"},"evidence":[{"field":"expression","quote":"Ble = a3 × Db3 (parameters a3 0.03420 b3 1.67330)","locator":"Table 4 (forms in Eqs. 16-19)"},{"field":"fit.n_trees","quote":"A total of 83 bamboo culms covering the full range of sizes were destructively sampled with D ranging from 3.6–9.5 cm, with H of 6.1–25.4 m","locator":"Section 2.3"}],"check":[{"inputs":{"D":5,"H":12},"expected":0.5054,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":8,"H":20},"expected":1.1096,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"One bamboo culm (plant) per record; D is culm diameter at breast height. Biomass in kg dry mass per plant. Component equations are fitted simultaneously (SUR) so the AGB equation is the sum of the three components. Parameters as printed in Table 4; the paper reports adjusted R2 only, so r2 is omitted."},{"id":"huynh-2022-eq10-d-n40","source":"huynh-2022","name":"Spotted gum AGB from DBH, 40-tree dataset (Eq. 10)","output":{"quantity":"agb"},"expression":"0.10606 * D^2.56803","published":{"expression":"0.10606 * D^2.56803","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Corymbia citriodora subsp. variegata","family":"Myrtaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["AU"],"place":"Three plantation trials (451D, 451G, 13PHY), southeast Queensland","biomes":["subtropical"]},"stand":"plantation","fit":{"n_trees":40,"dbh_min_cm":17.1,"dbh_max_cm":42,"method":"weighted nonlinear regression (nlme)"},"evidence":[{"field":"expression","quote":"(10) 0.10606 2.56803 (α, β) for AGB = α × Dβ","locator":"Table 4, Eq. (10); form in Table 2"},{"field":"fit.n_trees","quote":"in 2020, the second dataset consisted of 40 sample trees ... (D ranges 17.1–42.0 cm)","locator":"Section 2.1"}],"check":[{"inputs":{"D":20},"expected":232.6139,"origin":"computed","note":"computed from the Table 4 parameter estimates"},{"inputs":{"D":38},"expected":1209.1587,"origin":"computed","note":"computed from the Table 4 parameter estimates"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Weighted nonlinear power model, so no back-transform correction applies. AGB is the total of stem, bark, large branches, small branches and leaves (Table 3), so foliage is included. Adjusted R² is printed in Table 4 but is not stored. Fitted on the 2020 mature-tree dataset only."},{"id":"huynh-2022-eq3-d","source":"huynh-2022","name":"Spotted gum AGB from DBH (Eq. 3)","output":{"quantity":"agb"},"expression":"0.0822 * D^2.64134","published":{"expression":"0.0822 * D^2.64134","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Corymbia citriodora subsp. variegata","family":"Myrtaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["AU"],"place":"Three plantation trials (451D, 451G, 13PHY), southeast Queensland","biomes":["subtropical"]},"stand":"plantation","fit":{"n_trees":52,"dbh_min_cm":11.8,"dbh_max_cm":42,"h_min_m":12.6,"h_max_m":32,"method":"weighted nonlinear regression (nlme)"},"evidence":[{"field":"expression","quote":"(3) 0.08220 2.64134 (α, β) for AGB = α × Dβ","locator":"Table 4, Eq. (3); form in Table 2"},{"field":"fit.n_trees","quote":"We destructively sampled and weighed 52 sample trees, ranging from 11.8 to 42.0 cm in diameter at breast height","locator":"Abstract"}],"check":[{"inputs":{"D":15},"expected":105.0337,"origin":"computed","note":"computed from the Table 4 parameter estimates"},{"inputs":{"D":30},"expected":655.3168,"origin":"computed","note":"computed from the Table 4 parameter estimates"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Weighted nonlinear power model, so no back-transform correction applies. AGB is the total of stem, bark, large branches, small branches and leaves (Table 3), so foliage is included. Adjusted R² is printed in Table 4 but is not stored. The authors recommend this model (lowest cross-validated AIC, bias and MAPE)."},{"id":"huynh-2022-eq5-dh","source":"huynh-2022","name":"Spotted gum AGB from D and H (Eq. 5)","output":{"quantity":"agb"},"expression":"0.05251 * D^2.40238 * H^0.38285","published":{"expression":"0.05251 * D^2.40238 * H^0.38285","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Corymbia citriodora subsp. variegata","family":"Myrtaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["AU"],"place":"Three plantation trials (451D, 451G, 13PHY), southeast Queensland","biomes":["subtropical"]},"stand":"plantation","fit":{"n_trees":52,"dbh_min_cm":11.8,"dbh_max_cm":42,"h_min_m":12.6,"h_max_m":32,"method":"weighted nonlinear regression (nlme)"},"evidence":[{"field":"expression","quote":"(5) 0.05251 2.40238 0.38285 for AGB = α × Dβ × Hβ1","locator":"Table 4, Eq. (5); form in Table 2"},{"field":"fit.n_trees","quote":"We destructively sampled and weighed 52 sample trees, ranging from 11.8 to 42.0 cm in diameter at breast height","locator":"Abstract"}],"check":[{"inputs":{"D":15,"H":16},"expected":101.5447,"origin":"computed","note":"computed from the Table 4 parameter estimates"},{"inputs":{"D":30,"H":27},"expected":655.9129,"origin":"computed","note":"computed from the Table 4 parameter estimates"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Weighted nonlinear power model, so no back-transform correction applies. AGB is the total of stem, bark, large branches, small branches and leaves (Table 3), so foliage is included. Adjusted R² is printed in Table 4 but is not stored."},{"id":"huynh-2022-eq6-d2h","source":"huynh-2022","name":"Spotted gum AGB from D²H (Eq. 6)","output":{"quantity":"agb"},"expression":"0.02533 * (D^2 * H)^1.00656","published":{"expression":"0.02533 * (D^2 * H)^1.00656","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Corymbia citriodora subsp. variegata","family":"Myrtaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["AU"],"place":"Three plantation trials (451D, 451G, 13PHY), southeast Queensland","biomes":["subtropical"]},"stand":"plantation","fit":{"n_trees":52,"dbh_min_cm":11.8,"dbh_max_cm":42,"h_min_m":12.6,"h_max_m":32,"method":"weighted nonlinear regression (nlme)"},"evidence":[{"field":"expression","quote":"(6) 0.02533 1.00656 for AGB = α × (D2H)β","locator":"Table 4, Eq. (6); form in Table 2"},{"field":"fit.n_trees","quote":"We destructively sampled and weighed 52 sample trees, ranging from 11.8 to 42.0 cm in diameter at breast height","locator":"Abstract"}],"check":[{"inputs":{"D":15,"H":16},"expected":96.2204,"origin":"computed","note":"computed from the Table 4 parameter estimates"},{"inputs":{"D":30,"H":27},"expected":657.6746,"origin":"computed","note":"computed from the Table 4 parameter estimates"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Weighted nonlinear power model, so no back-transform correction applies. AGB is the total of stem, bark, large branches, small branches and leaves (Table 3), so foliage is included. Adjusted R² is printed in Table 4 but is not stored."},{"id":"huynh-2022-eq8-dhrho","source":"huynh-2022","name":"Spotted gum AGB from D, H and wood density (Eq. 8)","output":{"quantity":"agb"},"expression":"0.00233 * D^2.42585 * H^0.30576 * (rho * 1000)^0.4989","published":{"expression":"0.00233 * D^2.42585 * H^0.30576 * rho^0.4989","units":{"D":"cm","H":"m","rho":"kg/m3"},"output_unit":"kg"},"taxon":{"level":"species","name":"Corymbia citriodora subsp. variegata","family":"Myrtaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["AU"],"place":"Three plantation trials (451D, 451G, 13PHY), southeast Queensland","biomes":["subtropical"]},"stand":"plantation","fit":{"n_trees":52,"dbh_min_cm":11.8,"dbh_max_cm":42,"h_min_m":12.6,"h_max_m":32,"method":"weighted nonlinear regression (nlme)"},"evidence":[{"field":"expression","quote":"(8) 0.00233 2.42585 0.30576 0.49890 for AGB = α × Dβ × Hβ1 × ρβ2","locator":"Table 4, Eq. (8); form in Table 2"},{"field":"fit.n_trees","quote":"We destructively sampled and weighed 52 sample trees, ranging from 11.8 to 42.0 cm in diameter at breast height","locator":"Abstract"}],"check":[{"inputs":{"D":15,"H":16,"rho":0.7},"expected":101.8516,"origin":"computed","note":"computed from the Table 4 parameter estimates"},{"inputs":{"D":30,"H":27,"rho":0.73},"expected":655.8372,"origin":"computed","note":"computed from the Table 4 parameter estimates"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Weighted nonlinear power model, so no back-transform correction applies. AGB is the total of stem, bark, large branches, small branches and leaves (Table 3), so foliage is included. Adjusted R² is printed in Table 4 but is not stored. Wood density ρ is in kg m-3 in the paper, converted to g/cm3 in the canonical form."},{"id":"ipcc-2019-v4-ch4-rs-dry-africa-le125","source":"ipcc-2019-v4-ch4","name":"Root-to-shoot ratio, Tropical dry forest, Africa (natural, AGB ≤ 125 t/ha)","output":{"quantity":"root_shoot_ratio"},"expression":"0.332","published":{"expression":"0.332","units":{},"output_unit":"unitless"},"taxon":{"level":"mixed","name":"Tropical dry forest trees","group":"mixed"},"region":{"scope":"continental","countries":[],"place":"Africa; Tropical dry ecological zone (FAO 2015 Global Ecological Zones)","biomes":["tropical","dryland"]},"stand":"natural","fit":{},"evidence":[{"field":"expression","quote":"Tropical dry | Africa | Natural ≤ 125 0.332 0.247 SD 1, 12, 17, 18, 19","locator":"Table 4.4 (Updated), p. 4.18"},{"field":"output","quote":"RATIO OF BELOW-GROUND BIOMASS TO ABOVE-GROUND BIOMASS (R) [TONNE ROOT D.M. (TONNE SHOOT D.M.)-1]","locator":"Table 4.4 (Updated) title, p. 4.18"}],"check":[{"inputs":{"AGB":500},"expected":0.332,"origin":"published","note":"constant ratio printed in Table 4.4 (Updated), p. 4.18; independent of tree AGB"}],"verification":"original_read","checked_at":"2026-11-01","notes":"IPCC Tier 1 default R (root d.m. / shoot d.m.). Applies to stands with above-ground biomass ≤ 125 tonnes/ha: the threshold is stand-level (t/ha), not tree AGB, so it cannot be expressed in the tree-level expression. Uncertainty SD 0.247. Table references: 1, 12, 17, 18, 19 (12 = Mokany et al. 2006). Multiply tree AGB by R to estimate BGB."},{"id":"ipcc-2019-v4-ch4-rs-dry-americas-le125","source":"ipcc-2019-v4-ch4","name":"Root-to-shoot ratio, Tropical dry forest, North and South America (natural, AGB ≤ 125 t/ha)","output":{"quantity":"root_shoot_ratio"},"expression":"0.334","published":{"expression":"0.334","units":{},"output_unit":"unitless"},"taxon":{"level":"mixed","name":"Tropical dry forest trees","group":"mixed"},"region":{"scope":"continental","countries":[],"place":"North and South America; Tropical dry ecological zone (FAO 2015 Global Ecological Zones)","biomes":["tropical","dryland"]},"stand":"natural","fit":{},"evidence":[{"field":"expression","quote":"Tropical dry | North and South America | Natural ≤ 125 0.334 0.040 SD 4, 12, 20","locator":"Table 4.4 (Updated), p. 4.18"},{"field":"output","quote":"RATIO OF BELOW-GROUND BIOMASS TO ABOVE-GROUND BIOMASS (R) [TONNE ROOT D.M. (TONNE SHOOT D.M.)-1]","locator":"Table 4.4 (Updated) title, p. 4.18"}],"check":[{"inputs":{"AGB":500},"expected":0.334,"origin":"published","note":"constant ratio printed in Table 4.4 (Updated), p. 4.18; independent of tree AGB"}],"verification":"original_read","checked_at":"2026-11-01","notes":"IPCC Tier 1 default R (root d.m. / shoot d.m.). Applies to stands with above-ground biomass ≤ 125 tonnes/ha: the threshold is stand-level (t/ha), not tree AGB, so it cannot be expressed in the tree-level expression. Uncertainty SD 0.040. Table references: 4, 12, 20 (12 = Mokany et al. 2006). Multiply tree AGB by R to estimate BGB."},{"id":"ipcc-2019-v4-ch4-rs-moist-americas-le125","source":"ipcc-2019-v4-ch4","name":"Root-to-shoot ratio, Tropical moist forest, North and South America (natural, AGB ≤ 125 t/ha)","output":{"quantity":"root_shoot_ratio"},"expression":"0.2845","published":{"expression":"0.2845","units":{},"output_unit":"unitless"},"taxon":{"level":"mixed","name":"Tropical moist forest trees","group":"mixed"},"region":{"scope":"continental","countries":[],"place":"North and South America; Tropical moist ecological zone (FAO 2015 Global Ecological Zones)","biomes":["tropical"]},"stand":"natural","fit":{},"evidence":[{"field":"expression","quote":"Tropical moist | North and South America | Natural ≤ 125 0.2845 0.061 SD 12","locator":"Table 4.4 (Updated), p. 4.18"},{"field":"output","quote":"RATIO OF BELOW-GROUND BIOMASS TO ABOVE-GROUND BIOMASS (R) [TONNE ROOT D.M. (TONNE SHOOT D.M.)-1]","locator":"Table 4.4 (Updated) title, p. 4.18"}],"check":[{"inputs":{"AGB":500},"expected":0.2845,"origin":"published","note":"constant ratio printed in Table 4.4 (Updated), p. 4.18; independent of tree AGB"}],"verification":"original_read","checked_at":"2026-11-01","notes":"IPCC Tier 1 default R (root d.m. / shoot d.m.). Applies to stands with above-ground biomass ≤ 125 tonnes/ha: the threshold is stand-level (t/ha), not tree AGB, so it cannot be expressed in the tree-level expression. Uncertainty SD 0.061. Table references: 12 (12 = Mokany et al. 2006). Multiply tree AGB by R to estimate BGB."},{"id":"ipcc-2019-v4-ch4-rs-mountain-americas-le125","source":"ipcc-2019-v4-ch4","name":"Root-to-shoot ratio, Tropical mountain forest, North and South America (natural, AGB ≤ 125 t/ha)","output":{"quantity":"root_shoot_ratio"},"expression":"0.348","published":{"expression":"0.348","units":{},"output_unit":"unitless"},"taxon":{"level":"mixed","name":"Tropical mountain forest trees","group":"mixed"},"region":{"scope":"continental","countries":[],"place":"North and South America; Tropical mountain ecological zone (FAO 2015 Global Ecological Zones)","biomes":["tropical","montane"]},"stand":"natural","fit":{},"evidence":[{"field":"expression","quote":"Tropical mountain | North and South America | Natural ≤ 125 0.348 ±90% default 4","locator":"Table 4.4 (Updated), p. 4.18"},{"field":"output","quote":"RATIO OF BELOW-GROUND BIOMASS TO ABOVE-GROUND BIOMASS (R) [TONNE ROOT D.M. (TONNE SHOOT D.M.)-1]","locator":"Table 4.4 (Updated) title, p. 4.18"}],"check":[{"inputs":{"AGB":500},"expected":0.348,"origin":"published","note":"constant ratio printed in Table 4.4 (Updated), p. 4.18; independent of tree AGB"}],"verification":"original_read","checked_at":"2026-11-01","notes":"IPCC Tier 1 default R (root d.m. / shoot d.m.). Applies to stands with above-ground biomass ≤ 125 tonnes/ha: the threshold is stand-level (t/ha), not tree AGB, so it cannot be expressed in the tree-level expression. Uncertainty ±90%, default. Table references: 4 (12 = Mokany et al. 2006). Multiply tree AGB by R to estimate BGB."},{"id":"ipcc-2019-v4-ch4-rs-rainforest-africa-gt125","source":"ipcc-2019-v4-ch4","name":"Root-to-shoot ratio, Tropical rainforest forest, Africa (natural, AGB > 125 t/ha)","output":{"quantity":"root_shoot_ratio"},"expression":"0.532","published":{"expression":"0.532","units":{},"output_unit":"unitless"},"taxon":{"level":"mixed","name":"Tropical rainforest forest trees","group":"mixed"},"region":{"scope":"continental","countries":[],"place":"Africa; Tropical rainforest ecological zone (FAO 2015 Global Ecological Zones)","biomes":["tropical"]},"stand":"natural","fit":{},"evidence":[{"field":"expression","quote":"Tropical rainforest | Africa | Natural > 125 0.532 ±90% default 2, 3","locator":"Table 4.4 (Updated), p. 4.18"},{"field":"output","quote":"RATIO OF BELOW-GROUND BIOMASS TO ABOVE-GROUND BIOMASS (R) [TONNE ROOT D.M. (TONNE SHOOT D.M.)-1]","locator":"Table 4.4 (Updated) title, p. 4.18"}],"check":[{"inputs":{"AGB":500},"expected":0.532,"origin":"published","note":"constant ratio printed in Table 4.4 (Updated), p. 4.18; independent of tree AGB"}],"verification":"original_read","checked_at":"2026-11-01","notes":"IPCC Tier 1 default R (root d.m. / shoot d.m.). Applies to stands with above-ground biomass > 125 tonnes/ha: the threshold is stand-level (t/ha), not tree AGB, so it cannot be expressed in the tree-level expression. Uncertainty ±90%, default. Table references: 2, 3 (12 = Mokany et al. 2006). Multiply tree AGB by R to estimate BGB."},{"id":"ipcc-2019-v4-ch4-rs-rainforest-africa-le125","source":"ipcc-2019-v4-ch4","name":"Root-to-shoot ratio, Tropical rainforest forest, Africa (natural, AGB ≤ 125 t/ha)","output":{"quantity":"root_shoot_ratio"},"expression":"0.825","published":{"expression":"0.825","units":{},"output_unit":"unitless"},"taxon":{"level":"mixed","name":"Tropical rainforest forest trees","group":"mixed"},"region":{"scope":"continental","countries":[],"place":"Africa; Tropical rainforest ecological zone (FAO 2015 Global Ecological Zones)","biomes":["tropical"]},"stand":"natural","fit":{},"evidence":[{"field":"expression","quote":"Tropical rainforest | Africa | Natural ≤ 125 0.825 ±90% default 1, 2","locator":"Table 4.4 (Updated), p. 4.18"},{"field":"output","quote":"RATIO OF BELOW-GROUND BIOMASS TO ABOVE-GROUND BIOMASS (R) [TONNE ROOT D.M. (TONNE SHOOT D.M.)-1]","locator":"Table 4.4 (Updated) title, p. 4.18"}],"check":[{"inputs":{"AGB":500},"expected":0.825,"origin":"published","note":"constant ratio printed in Table 4.4 (Updated), p. 4.18; independent of tree AGB"}],"verification":"original_read","checked_at":"2026-11-01","notes":"IPCC Tier 1 default R (root d.m. / shoot d.m.). Applies to stands with above-ground biomass ≤ 125 tonnes/ha: the threshold is stand-level (t/ha), not tree AGB, so it cannot be expressed in the tree-level expression. Uncertainty ±90%, default. Table references: 1, 2 (12 = Mokany et al. 2006). Multiply tree AGB by R to estimate BGB."},{"id":"ipcc-2019-v4-ch4-rs-rainforest-americas-natural","source":"ipcc-2019-v4-ch4","name":"Root-to-shoot ratio, Tropical rainforest forest, North and South America (natural, AGB ≤ 125 and > 125 (same value) t/ha)","output":{"quantity":"root_shoot_ratio"},"expression":"0.221","published":{"expression":"0.221","units":{},"output_unit":"unitless"},"taxon":{"level":"mixed","name":"Tropical rainforest forest trees","group":"mixed"},"region":{"scope":"continental","countries":[],"place":"North and South America; Tropical rainforest ecological zone (FAO 2015 Global Ecological Zones)","biomes":["tropical"]},"stand":"natural","fit":{},"evidence":[{"field":"expression","quote":"Tropical rainforest | North and South America | Natural ≤ 125 0.221 0.036 SD 4","locator":"Table 4.4 (Updated), p. 4.18"},{"field":"output","quote":"RATIO OF BELOW-GROUND BIOMASS TO ABOVE-GROUND BIOMASS (R) [TONNE ROOT D.M. (TONNE SHOOT D.M.)-1]","locator":"Table 4.4 (Updated) title, p. 4.18"}],"check":[{"inputs":{"AGB":500},"expected":0.221,"origin":"published","note":"constant ratio printed in Table 4.4 (Updated), p. 4.18; independent of tree AGB"}],"verification":"original_read","checked_at":"2026-11-01","notes":"IPCC Tier 1 default R (root d.m. / shoot d.m.). Applies to stands with above-ground biomass ≤ 125 and > 125 (same value) tonnes/ha: the threshold is stand-level (t/ha), not tree AGB, so it cannot be expressed in the tree-level expression. Uncertainty SD 0.036. Table references: 4 (12 = Mokany et al. 2006). Multiply tree AGB by R to estimate BGB."},{"id":"ipcc-2019-v4-ch4-rs-rainforest-asia-le125","source":"ipcc-2019-v4-ch4","name":"Root-to-shoot ratio, Tropical rainforest forest, Asia (natural, AGB ≤ 125 t/ha)","output":{"quantity":"root_shoot_ratio"},"expression":"0.207","published":{"expression":"0.207","units":{},"output_unit":"unitless"},"taxon":{"level":"mixed","name":"Tropical rainforest forest trees","group":"mixed"},"region":{"scope":"continental","countries":[],"place":"Asia; Tropical rainforest ecological zone (FAO 2015 Global Ecological Zones)","biomes":["tropical"]},"stand":"natural","fit":{},"evidence":[{"field":"expression","quote":"Tropical rainforest | Asia | Natural ≤ 125 0.207 0.072 SD 6, 7, 8","locator":"Table 4.4 (Updated), p. 4.18"},{"field":"output","quote":"RATIO OF BELOW-GROUND BIOMASS TO ABOVE-GROUND BIOMASS (R) [TONNE ROOT D.M. (TONNE SHOOT D.M.)-1]","locator":"Table 4.4 (Updated) title, p. 4.18"}],"check":[{"inputs":{"AGB":500},"expected":0.207,"origin":"published","note":"constant ratio printed in Table 4.4 (Updated), p. 4.18; independent of tree AGB"}],"verification":"original_read","checked_at":"2026-11-01","notes":"IPCC Tier 1 default R (root d.m. / shoot d.m.). Applies to stands with above-ground biomass ≤ 125 tonnes/ha: the threshold is stand-level (t/ha), not tree AGB, so it cannot be expressed in the tree-level expression. Uncertainty SD 0.072. Table references: 6, 7, 8 (12 = Mokany et al. 2006). Multiply tree AGB by R to estimate BGB."},{"id":"istrefi-2018-bushtrice-dbh-h","source":"istrefi-2018","name":"Quercus cerris AGB, Bushtrice site (DBH and height, Table 6)","output":{"quantity":"agb"},"expression":"-0.36 + 1.41 * D + 1.385 * H","published":{"expression":"-0.36 + 1.41 * DBH + 1.385 * Ht","units":{"DBH":"cm","Ht":"m"},"variables":{"DBH":"D","Ht":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus cerris","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["AL"],"place":"Bushtrice, Albania (young coppice stand)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":9,"dbh_min_cm":4.5,"dbh_max_cm":13.5,"h_min_m":3.3,"h_max_m":9.4,"r2":0.95,"method":"linear or nonlinear regression without transformation"},"evidence":[{"field":"expression","quote":"DW = –0.36 + 1.41 • DBH + 1.385 • H","locator":"Table 6, Bushtrice row, total aboveground dry weight"},{"field":"fit.r2","quote":"R2 0.95","locator":"Table 6, Bushtrice row, total aboveground dry weight, R2 column"},{"field":"fit.n_trees","quote":"Bushtrice 9","locator":"Table 3, Sampled tree number"}],"check":[{"inputs":{"D":9,"H":6.35},"expected":21.1247,"origin":"computed","note":"hand-computed from the published form at the mid-point of the sampled range"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Young Q. cerris coppice stand at Bushtrice, Albania; whole-tree dry weight DW is the sum of stem, branches and leaves (roots not studied). Site-specific equation fitted on the 8-12 sampled trees of that site; 4.5-13.5 cm DBH and 3.3-9.4 m height are the sampled-tree ranges (Table 3). Fit by regression without transformation, so no correction factor. DBH and H are both in the model; second form of the pair uses DBH squared."},{"id":"istrefi-2018-bushtrice-dbh","source":"istrefi-2018","name":"Quercus cerris AGB, Bushtrice site (DBH, Table 4)","output":{"quantity":"agb"},"expression":"2.387 * D - 6.691","published":{"expression":"2.387 * DBH - 6.691","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus cerris","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["AL"],"place":"Bushtrice, Albania (young coppice stand)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":9,"dbh_min_cm":4.5,"dbh_max_cm":13.5,"h_min_m":3.3,"h_max_m":9.4,"r2":0.93,"method":"linear or nonlinear regression without transformation"},"evidence":[{"field":"expression","quote":"DW = 2.387 • DBH – 6.691","locator":"Table 4, Bushtrice row, whole tree"},{"field":"fit.r2","quote":"R2 0.93","locator":"Table 4, Bushtrice row, whole tree, R2 column"},{"field":"fit.n_trees","quote":"Bushtrice 9","locator":"Table 3, Sampled tree number"}],"check":[{"inputs":{"D":9},"expected":14.792,"origin":"computed","note":"hand-computed from the published form at the mid-point of the sampled range"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Young Q. cerris coppice stand at Bushtrice, Albania; whole-tree dry weight DW is the sum of stem, branches and leaves (roots not studied). Site-specific equation fitted on the 8-12 sampled trees of that site; 4.5-13.5 cm DBH and 3.3-9.4 m height are the sampled-tree ranges (Table 3). Fit by regression without transformation, so no correction factor."},{"id":"istrefi-2018-bushtrice-dbh2-h","source":"istrefi-2018","name":"Quercus cerris AGB, Bushtrice site (DBH squared and height, Table 6)","output":{"quantity":"agb"},"expression":"-3.73 + 0.05 * D^2 + 2.02 * H","published":{"expression":"-3.73 + 0.05 * DBH^2 + 2.02 * Ht","units":{"DBH":"cm","Ht":"m"},"variables":{"DBH":"D","Ht":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus cerris","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["AL"],"place":"Bushtrice, Albania (young coppice stand)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":9,"dbh_min_cm":4.5,"dbh_max_cm":13.5,"h_min_m":3.3,"h_max_m":9.4,"r2":0.97,"method":"linear or nonlinear regression without transformation"},"evidence":[{"field":"expression","quote":"DW = –3.73 + 0.05 • DBH2 + 2.02 • H","locator":"Table 6, Bushtrice row, total aboveground dry weight"},{"field":"fit.r2","quote":"R2 0.97","locator":"Table 6, Bushtrice row, total aboveground dry weight, R2 column"},{"field":"fit.n_trees","quote":"Bushtrice 9","locator":"Table 3, Sampled tree number"}],"check":[{"inputs":{"D":9,"H":6.35},"expected":13.147,"origin":"computed","note":"hand-computed from the published form at the mid-point of the sampled range"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Young Q. cerris coppice stand at Bushtrice, Albania; whole-tree dry weight DW is the sum of stem, branches and leaves (roots not studied). Site-specific equation fitted on the 8-12 sampled trees of that site; 4.5-13.5 cm DBH and 3.3-9.4 m height are the sampled-tree ranges (Table 3). Fit by regression without transformation, so no correction factor. DBH and H are both in the model; second form of the pair uses DBH squared."},{"id":"istrefi-2018-bushtrice-h","source":"istrefi-2018","name":"Quercus cerris AGB, Bushtrice site (height, Table 5)","output":{"quantity":"agb"},"expression":"1.861 * exp(0.277 * H)","published":{"expression":"1.861 * exp(0.277 * Ht)","units":{"Ht":"m"},"variables":{"Ht":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus cerris","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["AL"],"place":"Bushtrice, Albania (young coppice stand)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":9,"dbh_min_cm":4.5,"dbh_max_cm":13.5,"h_min_m":3.3,"h_max_m":9.4,"r2":0.82,"method":"linear or nonlinear regression without transformation"},"evidence":[{"field":"expression","quote":"DW = 1.861 • exp0.277 • H","locator":"Table 5, Bushtrice row, whole tree"},{"field":"fit.r2","quote":"R2 0.82","locator":"Table 5, Bushtrice row, whole tree, R2 column"},{"field":"fit.n_trees","quote":"Bushtrice 9","locator":"Table 3, Sampled tree number"}],"check":[{"inputs":{"H":6.35},"expected":10.8056,"origin":"computed","note":"hand-computed from the published form at the mid-point of the sampled range"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Young Q. cerris coppice stand at Bushtrice, Albania; whole-tree dry weight DW is the sum of stem, branches and leaves (roots not studied). Site-specific equation fitted on the 8-12 sampled trees of that site; 4.5-13.5 cm DBH and 3.3-9.4 m height are the sampled-tree ranges (Table 3). Fit by regression without transformation, so no correction factor."},{"id":"istrefi-2018-melan-dbh","source":"istrefi-2018","name":"Quercus cerris AGB, Melan site (DBH, Table 4)","output":{"quantity":"agb"},"expression":"0.927 * D^1.128","published":{"expression":"0.927 * DBH^1.128","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus cerris","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["AL"],"place":"Melan, Albania (young coppice stand)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":8,"dbh_min_cm":2,"dbh_max_cm":15,"h_min_m":2.8,"h_max_m":8.5,"r2":0.65,"method":"linear or nonlinear regression without transformation"},"evidence":[{"field":"expression","quote":"DW = 0.927 • DBH1.128","locator":"Table 4, Melan row, whole tree"},{"field":"fit.r2","quote":"R2 0.65","locator":"Table 4, Melan row, whole tree, R2 column"},{"field":"fit.n_trees","quote":"Melan 8","locator":"Table 3, Sampled tree number"}],"check":[{"inputs":{"D":8.5},"expected":10.3625,"origin":"computed","note":"hand-computed from the published form at the mid-point of the sampled range"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Young Q. cerris coppice stand at Melan, Albania; whole-tree dry weight DW is the sum of stem, branches and leaves (roots not studied). Site-specific equation fitted on the 8-12 sampled trees of that site; 2.0-15.0 cm DBH and 2.8-8.5 m height are the sampled-tree ranges (Table 3). Fit by regression without transformation, so no correction factor. Weakest fit of the study (R2 0.65)."},{"id":"istrefi-2018-melan-h","source":"istrefi-2018","name":"Quercus cerris AGB, Melan site (height, Table 5)","output":{"quantity":"agb"},"expression":"0.417 * H^1.826","published":{"expression":"0.417 * Ht^1.826","units":{"Ht":"m"},"variables":{"Ht":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus cerris","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["AL"],"place":"Melan, Albania (young coppice stand)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":8,"dbh_min_cm":2,"dbh_max_cm":15,"h_min_m":2.8,"h_max_m":8.5,"r2":0.47,"method":"linear or nonlinear regression without transformation"},"evidence":[{"field":"expression","quote":"DW = 0.417 • H1.826","locator":"Table 5, Melan row, whole tree"},{"field":"fit.r2","quote":"R2 0.47","locator":"Table 5, Melan row, whole tree, R2 column"},{"field":"fit.n_trees","quote":"Melan 8","locator":"Table 3, Sampled tree number"}],"check":[{"inputs":{"H":5.65},"expected":9.84865,"origin":"computed","note":"hand-computed from the published form at the mid-point of the sampled range"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Young Q. cerris coppice stand at Melan, Albania; whole-tree dry weight DW is the sum of stem, branches and leaves (roots not studied). Site-specific equation fitted on the 8-12 sampled trees of that site; 2.0-15.0 cm DBH and 2.8-8.5 m height are the sampled-tree ranges (Table 3). Fit by regression without transformation, so no correction factor."},{"id":"istrefi-2018-paper-dbh-h","source":"istrefi-2018","name":"Quercus cerris AGB, Paper site (DBH and height, Table 6)","output":{"quantity":"agb"},"expression":"-6.25 + 1.72 * D + 1.016 * H","published":{"expression":"-6.25 + 1.72 * DBH + 1.016 * Ht","units":{"DBH":"cm","Ht":"m"},"variables":{"DBH":"D","Ht":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus cerris","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["AL"],"place":"Paper, Albania (young coppice stand)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":12,"dbh_min_cm":3,"dbh_max_cm":30,"h_min_m":2.8,"h_max_m":9.2,"r2":0.98,"method":"linear or nonlinear regression without transformation"},"evidence":[{"field":"expression","quote":"DW = – 6.25 + 1.72 • DBH + 1.016 • H","locator":"Table 6, Paper row, total aboveground dry weight"},{"field":"fit.r2","quote":"R2 0.98","locator":"Table 6, Paper row, total aboveground dry weight, R2 column"},{"field":"fit.n_trees","quote":"Paper 12","locator":"Table 3, Sampled tree number"}],"check":[{"inputs":{"D":16.5,"H":6},"expected":28.226,"origin":"computed","note":"hand-computed from the published form at the mid-point of the sampled range"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Young Q. cerris coppice stand at Paper, Albania; whole-tree dry weight DW is the sum of stem, branches and leaves (roots not studied). Site-specific equation fitted on the 8-12 sampled trees of that site; 3.0-30.0 cm DBH and 2.8-9.2 m height are the sampled-tree ranges (Table 3). Fit by regression without transformation, so no correction factor. DBH and H are both in the model; second form of the pair uses DBH squared."},{"id":"istrefi-2018-paper-dbh","source":"istrefi-2018","name":"Quercus cerris AGB, Paper site (DBH, Table 4)","output":{"quantity":"agb"},"expression":"1.973 * D - 3.375","published":{"expression":"1.973 * DBH - 3.375","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus cerris","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["AL"],"place":"Paper, Albania (young coppice stand)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":12,"dbh_min_cm":3,"dbh_max_cm":30,"h_min_m":2.8,"h_max_m":9.2,"r2":0.98,"method":"linear or nonlinear regression without transformation"},"evidence":[{"field":"expression","quote":"DW = 1.973 • DBH – 3.375","locator":"Table 4, Paper row, whole tree"},{"field":"fit.r2","quote":"R2 0.98","locator":"Table 4, Paper row, whole tree, R2 column"},{"field":"fit.n_trees","quote":"Paper 12","locator":"Table 3, Sampled tree number"}],"check":[{"inputs":{"D":16.5},"expected":29.1795,"origin":"computed","note":"hand-computed from the published form at the mid-point of the sampled range"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Young Q. cerris coppice stand at Paper, Albania; whole-tree dry weight DW is the sum of stem, branches and leaves (roots not studied). Site-specific equation fitted on the 8-12 sampled trees of that site; 3.0-30.0 cm DBH and 2.8-9.2 m height are the sampled-tree ranges (Table 3). Fit by regression without transformation, so no correction factor."},{"id":"istrefi-2018-paper-dbh2-h","source":"istrefi-2018","name":"Quercus cerris AGB, Paper site (DBH squared and height, Table 6)","output":{"quantity":"agb"},"expression":"-4.05 + 0.04 * D^2 + 2.676 * H","published":{"expression":"-4.05 + 0.04 * DBH^2 + 2.676 * Ht","units":{"DBH":"cm","Ht":"m"},"variables":{"DBH":"D","Ht":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus cerris","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["AL"],"place":"Paper, Albania (young coppice stand)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":12,"dbh_min_cm":3,"dbh_max_cm":30,"h_min_m":2.8,"h_max_m":9.2,"r2":0.99,"method":"linear or nonlinear regression without transformation"},"evidence":[{"field":"expression","quote":"DW = – 4.05 + 0.04 • DBH2 +2.676 • H","locator":"Table 6, Paper row, total aboveground dry weight"},{"field":"fit.r2","quote":"R2 0.99","locator":"Table 6, Paper row, total aboveground dry weight, R2 column"},{"field":"fit.n_trees","quote":"Paper 12","locator":"Table 3, Sampled tree number"}],"check":[{"inputs":{"D":16.5,"H":6},"expected":22.896,"origin":"computed","note":"hand-computed from the published form at the mid-point of the sampled range"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Young Q. cerris coppice stand at Paper, Albania; whole-tree dry weight DW is the sum of stem, branches and leaves (roots not studied). Site-specific equation fitted on the 8-12 sampled trees of that site; 3.0-30.0 cm DBH and 2.8-9.2 m height are the sampled-tree ranges (Table 3). Fit by regression without transformation, so no correction factor. DBH and H are both in the model; second form of the pair uses DBH squared."},{"id":"istrefi-2018-paper-h","source":"istrefi-2018","name":"Quercus cerris AGB, Paper site (height, Table 5)","output":{"quantity":"agb"},"expression":"0.443 * H^2.022","published":{"expression":"0.443 * Ht^2.022","units":{"Ht":"m"},"variables":{"Ht":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus cerris","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["AL"],"place":"Paper, Albania (young coppice stand)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":12,"dbh_min_cm":3,"dbh_max_cm":30,"h_min_m":2.8,"h_max_m":9.2,"r2":0.85,"method":"linear or nonlinear regression without transformation"},"evidence":[{"field":"expression","quote":"DW = 0.443 • H2.022","locator":"Table 5, Paper row, whole tree"},{"field":"fit.r2","quote":"R2 0.85","locator":"Table 5, Paper row, whole tree, R2 column"},{"field":"fit.n_trees","quote":"Paper 12","locator":"Table 3, Sampled tree number"}],"check":[{"inputs":{"H":6},"expected":16.5892,"origin":"computed","note":"hand-computed from the published form at the mid-point of the sampled range"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Young Q. cerris coppice stand at Paper, Albania; whole-tree dry weight DW is the sum of stem, branches and leaves (roots not studied). Site-specific equation fitted on the 8-12 sampled trees of that site; 3.0-30.0 cm DBH and 2.8-9.2 m height are the sampled-tree ranges (Table 3). Fit by regression without transformation, so no correction factor."},{"id":"istrefi-2018-sllove-dbh","source":"istrefi-2018","name":"Quercus cerris AGB, Sllove site (DBH, Table 4)","output":{"quantity":"agb"},"expression":"2.428 * exp(0.207 * D)","published":{"expression":"2.428 * exp(0.207 * DBH)","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus cerris","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["AL"],"place":"Sllove, Albania (young coppice stand)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":10,"dbh_min_cm":4,"dbh_max_cm":15,"h_min_m":4.1,"h_max_m":10,"r2":0.96,"method":"linear or nonlinear regression without transformation"},"evidence":[{"field":"expression","quote":"DW = 2.428 • exp0.207 • DBH","locator":"Table 4, Sllove row, whole tree"},{"field":"fit.r2","quote":"R2 0.96","locator":"Table 4, Sllove row, whole tree, R2 column"},{"field":"fit.n_trees","quote":"Sllove 10","locator":"Table 3, Sampled tree number"}],"check":[{"inputs":{"D":9.5},"expected":17.3496,"origin":"computed","note":"hand-computed from the published form at the mid-point of the sampled range"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Young Q. cerris coppice stand at Sllove, Albania; whole-tree dry weight DW is the sum of stem, branches and leaves (roots not studied). Site-specific equation fitted on the 8-12 sampled trees of that site; 4.0-15.0 cm DBH and 4.1-10.0 m height are the sampled-tree ranges (Table 3). Fit by regression without transformation, so no correction factor."},{"id":"istrefi-2018-sllove-h","source":"istrefi-2018","name":"Quercus cerris AGB, Sllove site (height, Table 5)","output":{"quantity":"agb"},"expression":"1.376 * exp(0.320 * H)","published":{"expression":"1.376 * exp(0.320 * Ht)","units":{"Ht":"m"},"variables":{"Ht":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus cerris","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["AL"],"place":"Sllove, Albania (young coppice stand)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":10,"dbh_min_cm":4,"dbh_max_cm":15,"h_min_m":4.1,"h_max_m":10,"r2":0.86,"method":"linear or nonlinear regression without transformation"},"evidence":[{"field":"expression","quote":"DW = 1.376 • exp0.320 • H","locator":"Table 5, Sllove row, whole tree"},{"field":"fit.r2","quote":"R2 0.86","locator":"Table 5, Sllove row, whole tree, R2 column"},{"field":"fit.n_trees","quote":"Sllove 10","locator":"Table 3, Sampled tree number"}],"check":[{"inputs":{"H":7.05},"expected":13.1337,"origin":"computed","note":"hand-computed from the published form at the mid-point of the sampled range"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Young Q. cerris coppice stand at Sllove, Albania; whole-tree dry weight DW is the sum of stem, branches and leaves (roots not studied). Site-specific equation fitted on the 8-12 sampled trees of that site; 4.0-15.0 cm DBH and 4.1-10.0 m height are the sampled-tree ranges (Table 3). Fit by regression without transformation, so no correction factor."},{"id":"istrefi-2018-zerqan-dbh-h","source":"istrefi-2018","name":"Quercus cerris AGB, Zerqan site (DBH and height, Table 6)","output":{"quantity":"agb"},"expression":"-3.56 + 0.69 * D + 1.49 * H","published":{"expression":"-3.56 + 0.69 * DBH + 1.49 * Ht","units":{"DBH":"cm","Ht":"m"},"variables":{"DBH":"D","Ht":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus cerris","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["AL"],"place":"Zerqan, Albania (young coppice stand)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":11,"dbh_min_cm":2.5,"dbh_max_cm":14,"h_min_m":2.2,"h_max_m":10.5,"r2":0.96,"method":"linear or nonlinear regression without transformation"},"evidence":[{"field":"expression","quote":"DW = –3.56 + 0.69 • DBH + 1.49 • H","locator":"Table 6, Zerqan row, total aboveground dry weight"},{"field":"fit.r2","quote":"R2 0.96","locator":"Table 6, Zerqan row, total aboveground dry weight, R2 column"},{"field":"fit.n_trees","quote":"Zerqan 11","locator":"Table 3, Sampled tree number"}],"check":[{"inputs":{"D":8.25,"H":6.35},"expected":11.594,"origin":"computed","note":"hand-computed from the published form at the mid-point of the sampled range"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Young Q. cerris coppice stand at Zerqan, Albania; whole-tree dry weight DW is the sum of stem, branches and leaves (roots not studied). Site-specific equation fitted on the 8-12 sampled trees of that site; 2.5-14.0 cm DBH and 2.2-10.5 m height are the sampled-tree ranges (Table 3). Fit by regression without transformation, so no correction factor. DBH and H are both in the model; second form of the pair uses DBH squared."},{"id":"istrefi-2018-zerqan-dbh","source":"istrefi-2018","name":"Quercus cerris AGB, Zerqan site (DBH, Table 4)","output":{"quantity":"agb"},"expression":"1.755 * D - 2.762","published":{"expression":"1.755 * DBH - 2.762","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus cerris","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["AL"],"place":"Zerqan, Albania (young coppice stand)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":11,"dbh_min_cm":2.5,"dbh_max_cm":14,"h_min_m":2.2,"h_max_m":10.5,"r2":0.95,"method":"linear or nonlinear regression without transformation"},"evidence":[{"field":"expression","quote":"DW = 1.755 • DBH – 2.762","locator":"Table 4, Zerqan row, whole tree"},{"field":"fit.r2","quote":"R2 0.95","locator":"Table 4, Zerqan row, whole tree, R2 column"},{"field":"fit.n_trees","quote":"Zerqan 11","locator":"Table 3, Sampled tree number"}],"check":[{"inputs":{"D":8.25},"expected":11.7167,"origin":"computed","note":"hand-computed from the published form at the mid-point of the sampled range"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Young Q. cerris coppice stand at Zerqan, Albania; whole-tree dry weight DW is the sum of stem, branches and leaves (roots not studied). Site-specific equation fitted on the 8-12 sampled trees of that site; 2.5-14.0 cm DBH and 2.2-10.5 m height are the sampled-tree ranges (Table 3). Fit by regression without transformation, so no correction factor."},{"id":"istrefi-2018-zerqan-dbh2-h","source":"istrefi-2018","name":"Quercus cerris AGB, Zerqan site (DBH squared and height, Table 6)","output":{"quantity":"agb"},"expression":"-3.24 + 0.01 * D^2 + 2.19 * H","published":{"expression":"-3.24 + 0.01 * DBH^2 + 2.19 * Ht","units":{"DBH":"cm","Ht":"m"},"variables":{"DBH":"D","Ht":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus cerris","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["AL"],"place":"Zerqan, Albania (young coppice stand)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":11,"dbh_min_cm":2.5,"dbh_max_cm":14,"h_min_m":2.2,"h_max_m":10.5,"r2":0.96,"method":"linear or nonlinear regression without transformation"},"evidence":[{"field":"expression","quote":"DW = –3.24 + 0.01 • DBH2 + 2.19 • H","locator":"Table 6, Zerqan row, total aboveground dry weight"},{"field":"fit.r2","quote":"R2 0.96","locator":"Table 6, Zerqan row, total aboveground dry weight, R2 column"},{"field":"fit.n_trees","quote":"Zerqan 11","locator":"Table 3, Sampled tree number"}],"check":[{"inputs":{"D":8.25,"H":6.35},"expected":11.3471,"origin":"computed","note":"hand-computed from the published form at the mid-point of the sampled range"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Young Q. cerris coppice stand at Zerqan, Albania; whole-tree dry weight DW is the sum of stem, branches and leaves (roots not studied). Site-specific equation fitted on the 8-12 sampled trees of that site; 2.5-14.0 cm DBH and 2.2-10.5 m height are the sampled-tree ranges (Table 3). Fit by regression without transformation, so no correction factor. DBH and H are both in the model; second form of the pair uses DBH squared."},{"id":"istrefi-2018-zerqan-h","source":"istrefi-2018","name":"Quercus cerris AGB, Zerqan site (height, Table 5)","output":{"quantity":"agb"},"expression":"0.468 * H^1.689","published":{"expression":"0.468 * Ht^1.689","units":{"Ht":"m"},"variables":{"Ht":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus cerris","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["AL"],"place":"Zerqan, Albania (young coppice stand)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":11,"dbh_min_cm":2.5,"dbh_max_cm":14,"h_min_m":2.2,"h_max_m":10.5,"r2":0.95,"method":"linear or nonlinear regression without transformation"},"evidence":[{"field":"expression","quote":"DW = 0.468 • H1.689","locator":"Table 5, Zerqan row, whole tree"},{"field":"fit.r2","quote":"R2 0.95","locator":"Table 5, Zerqan row, whole tree, R2 column"},{"field":"fit.n_trees","quote":"Zerqan 11","locator":"Table 3, Sampled tree number"}],"check":[{"inputs":{"H":6.35},"expected":10.6202,"origin":"computed","note":"hand-computed from the published form at the mid-point of the sampled range"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Young Q. cerris coppice stand at Zerqan, Albania; whole-tree dry weight DW is the sum of stem, branches and leaves (roots not studied). Site-specific equation fitted on the 8-12 sampled trees of that site; 2.5-14.0 cm DBH and 2.2-10.5 m height are the sampled-tree ranges (Table 3). Fit by regression without transformation, so no correction factor."},{"id":"jenkins-2003-aspen-alder-cottonwood-willow","source":"jenkins-2003","name":"US national species group: Aspen/alder/cottonwood/willow (Table 4)","output":{"quantity":"agb"},"expression":"exp(-2.2094 + 2.3867 * ln(D))","published":{"expression":"exp(-2.2094 + 2.3867 * ln(dbh))","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Aspen/alder/cottonwood/willow species group (hardwood), United States","group":"broadleaf"},"region":{"scope":"national","countries":["US"],"place":"Conterminous United States","biomes":["temperate","boreal"]},"stand":"mixed","fit":{"dbh_min_cm":2.5,"dbh_max_cm":70,"r2":0.953,"rse":0.507441,"method":"OLS on ln-transformed pseudodata (230 points, generally at 5 cm dbh intervals) generated from published equations; no back-transform correction applied"},"evidence":[{"field":"expression","quote":"bm = Exp(β0 + β1 ln dbh)","locator":"Table 4 footnote, p. 20"},{"field":"expression","quote":"Aspen/alder/cottonwood/willow −2.2094 2.3867 230 70 0.507441 0.953","locator":"Table 4 row, p. 20"},{"field":"fit.dbh_min_cm","quote":"bm = total aboveground biomass (kg) for trees 2.5cm dbh and larger","locator":"Table 4 footnote, p. 20"},{"field":"fit.rse","quote":"Root mean squared error or estimate of the standard deviation of the regression error term in natural log units.","locator":"Table 4 footnote §"},{"field":"fit.cf","quote":"we do not include CFs for the reader to use after back-transformation","locator":"p. 19, Correction factors"}],"check":[{"inputs":{"D":30},"expected":368.057,"origin":"computed","note":"computed from the published form at dbh = 30 cm"},{"inputs":{"D":10},"expected":26.7405,"origin":"computed","note":"computed from the published form at dbh = 10 cm"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Group membership: Alnus, Populus and Salix (Table 1); includes Populus deltoides, P. tremuloides and hybrid-poplar parents. dbh_max_cm is the 'Max dbh of trees measured in published equations'; data points are pseudodata, not trees. Hardwood groups were extended to 230 cm dbh with Freedman (1984) pseudodata. No log-bias correction: the authors deliberately omit it; a user could multiply by exp(RMSE²/2) = 1.1374. Superseded for FIA reporting by NSVB (Westfall et al. 2024) but still widely used in carbon protocols."},{"id":"jenkins-2003-cedar-larch","source":"jenkins-2003","name":"US national species group: Cedar/larch (Table 4)","output":{"quantity":"agb"},"expression":"exp(-2.0336 + 2.2592 * ln(D))","published":{"expression":"exp(-2.0336 + 2.2592 * ln(dbh))","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Cedar/larch species group (softwood), United States","group":"conifer"},"region":{"scope":"national","countries":["US"],"place":"Conterminous United States","biomes":["temperate","boreal"]},"stand":"mixed","fit":{"dbh_min_cm":2.5,"dbh_max_cm":250,"r2":0.981,"rse":0.294574,"method":"OLS on ln-transformed pseudodata (196 points, generally at 5 cm dbh intervals) generated from published equations; no back-transform correction applied"},"evidence":[{"field":"expression","quote":"bm = Exp(β0 + β1 ln dbh)","locator":"Table 4 footnote, p. 20"},{"field":"expression","quote":"Cedar/larch −2.0336 2.2592 196 250 0.294574 0.981","locator":"Table 4 row, p. 20"},{"field":"fit.dbh_min_cm","quote":"bm = total aboveground biomass (kg) for trees 2.5cm dbh and larger","locator":"Table 4 footnote, p. 20"},{"field":"fit.rse","quote":"Root mean squared error or estimate of the standard deviation of the regression error term in natural log units.","locator":"Table 4 footnote §"},{"field":"fit.cf","quote":"we do not include CFs for the reader to use after back-transformation","locator":"p. 19, Correction factors"}],"check":[{"inputs":{"D":30},"expected":284.401,"origin":"computed","note":"computed from the published form at dbh = 30 cm"},{"inputs":{"D":10},"expected":23.7694,"origin":"computed","note":"computed from the published form at dbh = 10 cm"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Group membership: Cupressaceae and Larix (Table 3). dbh_max_cm is the 'Max dbh of trees measured in published equations'; data points are pseudodata, not trees. Hardwood groups were extended to 230 cm dbh with Freedman (1984) pseudodata. No log-bias correction: the authors deliberately omit it; a user could multiply by exp(RMSE²/2) = 1.0443. Superseded for FIA reporting by NSVB (Westfall et al. 2024) but still widely used in carbon protocols."},{"id":"jenkins-2003-douglas-fir","source":"jenkins-2003","name":"US national species group: Douglas-fir (Table 4)","output":{"quantity":"agb"},"expression":"exp(-2.2304 + 2.4435 * ln(D))","published":{"expression":"exp(-2.2304 + 2.4435 * ln(dbh))","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Douglas-fir species group (softwood), United States","group":"conifer"},"region":{"scope":"national","countries":["US"],"place":"Conterminous United States","biomes":["temperate"]},"stand":"mixed","fit":{"dbh_min_cm":2.5,"dbh_max_cm":210,"r2":0.992,"rse":0.218712,"method":"OLS on ln-transformed pseudodata (165 points, generally at 5 cm dbh intervals) generated from published equations; no back-transform correction applied"},"evidence":[{"field":"expression","quote":"bm = Exp(β0 + β1 ln dbh)","locator":"Table 4 footnote, p. 20"},{"field":"expression","quote":"Douglas−fir −2.2304 2.4435 165 210 0.218712 0.992","locator":"Table 4 row, p. 20"},{"field":"fit.dbh_min_cm","quote":"bm = total aboveground biomass (kg) for trees 2.5cm dbh and larger","locator":"Table 4 footnote, p. 20"},{"field":"fit.rse","quote":"Root mean squared error or estimate of the standard deviation of the regression error term in natural log units.","locator":"Table 4 footnote §"},{"field":"fit.cf","quote":"we do not include CFs for the reader to use after back-transformation","locator":"p. 19, Correction factors"}],"check":[{"inputs":{"D":30},"expected":437.2153,"origin":"computed","note":"computed from the published form at dbh = 30 cm"},{"inputs":{"D":10},"expected":29.8435,"origin":"computed","note":"computed from the published form at dbh = 10 cm"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Group membership: Pseudotsuga (Table 3). dbh_max_cm is the 'Max dbh of trees measured in published equations'; data points are pseudodata, not trees. Hardwood groups were extended to 230 cm dbh with Freedman (1984) pseudodata. No log-bias correction: the authors deliberately omit it; a user could multiply by exp(RMSE²/2) = 1.0242. Superseded for FIA reporting by NSVB (Westfall et al. 2024) but still widely used in carbon protocols."},{"id":"jenkins-2003-hard-maple-oak-hickory-beech","source":"jenkins-2003","name":"US national species group: Hard maple/oak/hickory/beech (Table 4)","output":{"quantity":"agb"},"expression":"exp(-2.0127 + 2.4342 * ln(D))","published":{"expression":"exp(-2.0127 + 2.4342 * ln(dbh))","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Hard maple/oak/hickory/beech species group (hardwood), United States","group":"broadleaf"},"region":{"scope":"national","countries":["US"],"place":"Conterminous United States","biomes":["temperate"]},"stand":"mixed","fit":{"dbh_min_cm":2.5,"dbh_max_cm":73,"r2":0.988,"rse":0.236483,"method":"OLS on ln-transformed pseudodata (485 points, generally at 5 cm dbh intervals) generated from published equations; no back-transform correction applied"},"evidence":[{"field":"expression","quote":"bm = Exp(β0 + β1 ln dbh)","locator":"Table 4 footnote, p. 20"},{"field":"expression","quote":"Hard maple/oak/hickory/beech −2.0127 2.4342 485 73 0.236483 0.988","locator":"Table 4 row, p. 20"},{"field":"fit.dbh_min_cm","quote":"bm = total aboveground biomass (kg) for trees 2.5cm dbh and larger","locator":"Table 4 footnote, p. 20"},{"field":"fit.rse","quote":"Root mean squared error or estimate of the standard deviation of the regression error term in natural log units.","locator":"Table 4 footnote §"},{"field":"fit.cf","quote":"we do not include CFs for the reader to use after back-transformation","locator":"p. 19, Correction factors"}],"check":[{"inputs":{"D":30},"expected":526.6281,"origin":"computed","note":"computed from the published form at dbh = 30 cm"},{"inputs":{"D":10},"expected":36.3158,"origin":"computed","note":"computed from the published form at dbh = 10 cm"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Group membership: hard Acer, Carya, Fagus and Quercus (Table 1), i.e. white and northern red oak. dbh_max_cm is the 'Max dbh of trees measured in published equations'; data points are pseudodata, not trees. Hardwood groups were extended to 230 cm dbh with Freedman (1984) pseudodata. No log-bias correction: the authors deliberately omit it; a user could multiply by exp(RMSE²/2) = 1.0284. Superseded for FIA reporting by NSVB (Westfall et al. 2024) but still widely used in carbon protocols."},{"id":"jenkins-2003-juniper-oak-mesquite","source":"jenkins-2003","name":"US national species group: Juniper/oak/mesquite (Table 4)","output":{"quantity":"agb"},"expression":"exp(-0.7152 + 1.7029 * ln(D))","published":{"expression":"exp(-0.7152 + 1.7029 * ln(dbh))","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Juniper/oak/mesquite species group (woodland), United States","group":"mixed"},"region":{"scope":"national","countries":["US"],"place":"Conterminous United States","biomes":["temperate","dryland"]},"stand":"mixed","fit":{"dbh_min_cm":2.5,"dbh_max_cm":78,"r2":0.938,"rse":0.384331,"method":"OLS on ln-transformed pseudodata (61 points, generally at 5 cm dbh intervals) generated from published equations; no back-transform correction applied"},"evidence":[{"field":"expression","quote":"bm = Exp(β0 + β1 ln dbh)","locator":"Table 4 footnote, p. 20"},{"field":"expression","quote":"Juniper/oak/mesquite −0.7152 1.7029 61 78 0.384331 0.938","locator":"Table 4 row, p. 20"},{"field":"fit.dbh_min_cm","quote":"bm = total aboveground biomass (kg) for trees 2.5cm dbh and larger","locator":"Table 4 footnote, p. 20"},{"field":"fit.rse","quote":"Root mean squared error or estimate of the standard deviation of the regression error term in natural log units.","locator":"Table 4 footnote §"},{"field":"fit.cf","quote":"we do not include CFs for the reader to use after back-transformation","locator":"p. 19, Correction factors"}],"check":[{"inputs":{"D":30},"expected":160.2442,"origin":"computed","note":"computed from the published form at dbh = 30 cm"},{"inputs":{"D":10},"expected":24.677,"origin":"computed","note":"computed from the published form at dbh = 10 cm"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Group membership: dryland woodland hardwoods and softwoods (Table 3). dbh_max_cm is the 'Max dbh of trees measured in published equations'; data points are pseudodata, not trees. Hardwood groups were extended to 230 cm dbh with Freedman (1984) pseudodata. No log-bias correction: the authors deliberately omit it; a user could multiply by exp(RMSE²/2) = 1.0767. Superseded for FIA reporting by NSVB (Westfall et al. 2024) but still widely used in carbon protocols."},{"id":"jenkins-2003-mixed-hardwood","source":"jenkins-2003","name":"US national species group: Mixed hardwood (Table 4)","output":{"quantity":"agb"},"expression":"exp(-2.48 + 2.4835 * ln(D))","published":{"expression":"exp(-2.48 + 2.4835 * ln(dbh))","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Mixed hardwood species group (hardwood), United States","group":"broadleaf"},"region":{"scope":"national","countries":["US"],"place":"Conterminous United States","biomes":["temperate"]},"stand":"mixed","fit":{"dbh_min_cm":2.5,"dbh_max_cm":56,"r2":0.98,"rse":0.360458,"method":"OLS on ln-transformed pseudodata (289 points, generally at 5 cm dbh intervals) generated from published equations; no back-transform correction applied"},"evidence":[{"field":"expression","quote":"bm = Exp(β0 + β1 ln dbh)","locator":"Table 4 footnote, p. 20"},{"field":"expression","quote":"Mixed hardwood −2.4800 2.4835 289 56 0.360458 0.980","locator":"Table 4 row, p. 20"},{"field":"fit.dbh_min_cm","quote":"bm = total aboveground biomass (kg) for trees 2.5cm dbh and larger","locator":"Table 4 footnote, p. 20"},{"field":"fit.rse","quote":"Root mean squared error or estimate of the standard deviation of the regression error term in natural log units.","locator":"Table 4 footnote §"},{"field":"fit.cf","quote":"we do not include CFs for the reader to use after back-transformation","locator":"p. 19, Correction factors"}],"check":[{"inputs":{"D":30},"expected":390.2836,"origin":"computed","note":"computed from the published form at dbh = 30 cm"},{"inputs":{"D":10},"expected":25.4947,"origin":"computed","note":"computed from the published form at dbh = 10 cm"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Group membership: includes Liquidambar, Liriodendron, Platanus and Prunus (Table 1), i.e. sweetgum, yellow-poplar, American sycamore and black cherry. dbh_max_cm is the 'Max dbh of trees measured in published equations'; data points are pseudodata, not trees. Hardwood groups were extended to 230 cm dbh with Freedman (1984) pseudodata. No log-bias correction: the authors deliberately omit it; a user could multiply by exp(RMSE²/2) = 1.0671. Superseded for FIA reporting by NSVB (Westfall et al. 2024) but still widely used in carbon protocols."},{"id":"jenkins-2003-pine","source":"jenkins-2003","name":"US national species group: Pine (Table 4)","output":{"quantity":"agb"},"expression":"exp(-2.5356 + 2.4349 * ln(D))","published":{"expression":"exp(-2.5356 + 2.4349 * ln(dbh))","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Pine species group (softwood), United States","group":"conifer"},"region":{"scope":"national","countries":["US"],"place":"Conterminous United States","biomes":["temperate","boreal"]},"stand":"mixed","fit":{"dbh_min_cm":2.5,"dbh_max_cm":180,"r2":0.987,"rse":0.253781,"method":"OLS on ln-transformed pseudodata (331 points, generally at 5 cm dbh intervals) generated from published equations; no back-transform correction applied"},"evidence":[{"field":"expression","quote":"bm = Exp(β0 + β1 ln dbh)","locator":"Table 4 footnote, p. 20"},{"field":"expression","quote":"Pine −2.5356 2.4349 331 180 0.253781 0.987","locator":"Table 4 row, p. 20"},{"field":"fit.dbh_min_cm","quote":"bm = total aboveground biomass (kg) for trees 2.5cm dbh and larger","locator":"Table 4 footnote, p. 20"},{"field":"fit.rse","quote":"Root mean squared error or estimate of the standard deviation of the regression error term in natural log units.","locator":"Table 4 footnote §"},{"field":"fit.cf","quote":"we do not include CFs for the reader to use after back-transformation","locator":"p. 19, Correction factors"}],"check":[{"inputs":{"D":30},"expected":312.9287,"origin":"computed","note":"computed from the published form at dbh = 30 cm"},{"inputs":{"D":10},"expected":21.5627,"origin":"computed","note":"computed from the published form at dbh = 10 cm"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Group membership: all Pinus (Table 3), including loblolly (P. taeda) and shortleaf (P. echinata) pine. dbh_max_cm is the 'Max dbh of trees measured in published equations'; data points are pseudodata, not trees. Hardwood groups were extended to 230 cm dbh with Freedman (1984) pseudodata. No log-bias correction: the authors deliberately omit it; a user could multiply by exp(RMSE²/2) = 1.0327. Superseded for FIA reporting by NSVB (Westfall et al. 2024) but still widely used in carbon protocols."},{"id":"jenkins-2003-soft-maple-birch","source":"jenkins-2003","name":"US national species group: Soft maple/birch (Table 4)","output":{"quantity":"agb"},"expression":"exp(-1.9123 + 2.3651 * ln(D))","published":{"expression":"exp(-1.9123 + 2.3651 * ln(dbh))","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Soft maple/birch species group (hardwood), United States","group":"broadleaf"},"region":{"scope":"national","countries":["US"],"place":"Conterminous United States","biomes":["temperate","boreal"]},"stand":"mixed","fit":{"dbh_min_cm":2.5,"dbh_max_cm":66,"r2":0.958,"rse":0.491685,"method":"OLS on ln-transformed pseudodata (316 points, generally at 5 cm dbh intervals) generated from published equations; no back-transform correction applied"},"evidence":[{"field":"expression","quote":"bm = Exp(β0 + β1 ln dbh)","locator":"Table 4 footnote, p. 20"},{"field":"expression","quote":"Soft maple/birch −1.9123 2.3651 316 66 0.491685 0.958","locator":"Table 4 row, p. 20"},{"field":"fit.dbh_min_cm","quote":"bm = total aboveground biomass (kg) for trees 2.5cm dbh and larger","locator":"Table 4 footnote, p. 20"},{"field":"fit.rse","quote":"Root mean squared error or estimate of the standard deviation of the regression error term in natural log units.","locator":"Table 4 footnote §"},{"field":"fit.cf","quote":"we do not include CFs for the reader to use after back-transformation","locator":"p. 19, Correction factors"}],"check":[{"inputs":{"D":30},"expected":460.297,"origin":"computed","note":"computed from the published form at dbh = 30 cm"},{"inputs":{"D":10},"expected":34.2451,"origin":"computed","note":"computed from the published form at dbh = 10 cm"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Group membership: soft Acer species and Betula (Table 1). dbh_max_cm is the 'Max dbh of trees measured in published equations'; data points are pseudodata, not trees. Hardwood groups were extended to 230 cm dbh with Freedman (1984) pseudodata. No log-bias correction: the authors deliberately omit it; a user could multiply by exp(RMSE²/2) = 1.1285. Superseded for FIA reporting by NSVB (Westfall et al. 2024) but still widely used in carbon protocols."},{"id":"jenkins-2003-spruce","source":"jenkins-2003","name":"US national species group: Spruce (Table 4)","output":{"quantity":"agb"},"expression":"exp(-2.0773 + 2.3323 * ln(D))","published":{"expression":"exp(-2.0773 + 2.3323 * ln(dbh))","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Spruce species group (softwood), United States","group":"conifer"},"region":{"scope":"national","countries":["US"],"place":"Conterminous United States","biomes":["temperate","boreal"]},"stand":"mixed","fit":{"dbh_min_cm":2.5,"dbh_max_cm":250,"r2":0.988,"rse":0.250424,"method":"OLS on ln-transformed pseudodata (212 points, generally at 5 cm dbh intervals) generated from published equations; no back-transform correction applied"},"evidence":[{"field":"expression","quote":"bm = Exp(β0 + β1 ln dbh)","locator":"Table 4 footnote, p. 20"},{"field":"expression","quote":"Spruce −2.0773 2.3323 212 250 0.250424 0.988","locator":"Table 4 row, p. 20"},{"field":"fit.dbh_min_cm","quote":"bm = total aboveground biomass (kg) for trees 2.5cm dbh and larger","locator":"Table 4 footnote, p. 20"},{"field":"fit.rse","quote":"Root mean squared error or estimate of the standard deviation of the regression error term in natural log units.","locator":"Table 4 footnote §"},{"field":"fit.cf","quote":"we do not include CFs for the reader to use after back-transformation","locator":"p. 19, Correction factors"}],"check":[{"inputs":{"D":30},"expected":349.084,"origin":"computed","note":"computed from the published form at dbh = 30 cm"},{"inputs":{"D":10},"expected":26.924,"origin":"computed","note":"computed from the published form at dbh = 10 cm"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Group membership: Picea (Table 3). dbh_max_cm is the 'Max dbh of trees measured in published equations'; data points are pseudodata, not trees. Hardwood groups were extended to 230 cm dbh with Freedman (1984) pseudodata. No log-bias correction: the authors deliberately omit it; a user could multiply by exp(RMSE²/2) = 1.0319. Superseded for FIA reporting by NSVB (Westfall et al. 2024) but still widely used in carbon protocols."},{"id":"jenkins-2003-true-fir-hemlock","source":"jenkins-2003","name":"US national species group: True fir/hemlock (Table 4)","output":{"quantity":"agb"},"expression":"exp(-2.5384 + 2.4814 * ln(D))","published":{"expression":"exp(-2.5384 + 2.4814 * ln(dbh))","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"True fir/hemlock species group (softwood), United States","group":"conifer"},"region":{"scope":"national","countries":["US"],"place":"Conterminous United States","biomes":["temperate","boreal"]},"stand":"mixed","fit":{"dbh_min_cm":2.5,"dbh_max_cm":230,"r2":0.992,"rse":0.182329,"method":"OLS on ln-transformed pseudodata (395 points, generally at 5 cm dbh intervals) generated from published equations; no back-transform correction applied"},"evidence":[{"field":"expression","quote":"bm = Exp(β0 + β1 ln dbh)","locator":"Table 4 footnote, p. 20"},{"field":"expression","quote":"True fir/hemlock −2.5384 2.4814 395 230 0.182329 0.992","locator":"Table 4 row, p. 20"},{"field":"fit.dbh_min_cm","quote":"bm = total aboveground biomass (kg) for trees 2.5cm dbh and larger","locator":"Table 4 footnote, p. 20"},{"field":"fit.rse","quote":"Root mean squared error or estimate of the standard deviation of the regression error term in natural log units.","locator":"Table 4 footnote §"},{"field":"fit.cf","quote":"we do not include CFs for the reader to use after back-transformation","locator":"p. 19, Correction factors"}],"check":[{"inputs":{"D":30},"expected":365.5237,"origin":"computed","note":"computed from the published form at dbh = 30 cm"},{"inputs":{"D":10},"expected":23.9324,"origin":"computed","note":"computed from the published form at dbh = 10 cm"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Group membership: Abies and Tsuga (Table 3). dbh_max_cm is the 'Max dbh of trees measured in published equations'; data points are pseudodata, not trees. Hardwood groups were extended to 230 cm dbh with Freedman (1984) pseudodata. No log-bias correction: the authors deliberately omit it; a user could multiply by exp(RMSE²/2) = 1.0168. Superseded for FIA reporting by NSVB (Westfall et al. 2024) but still widely used in carbon protocols."},{"id":"jung-2014-agb","source":"jung-2014","name":"Cryptomeria japonica Aboveground from DBH (Table 3)","output":{"quantity":"agb"},"expression":"1.0 * exp(-2.155 + 2.199 * ln(D))","published":{"expression":"1.0 * exp(-2.155 + 2.199 * ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Cryptomeria japonica","family":"Cupressaceae","group":"conifer"},"region":{"scope":"site","countries":["KR"],"place":"Hannam experimental forest, Mount Halla, Jeju Island, South Korea","biomes":["temperate","subtropical"]},"stand":"plantation","fit":{"n_trees":18,"dbh_min_cm":13,"dbh_max_cm":28,"h_min_m":9,"h_max_m":14,"r2":0.963,"cf":1,"method":"log-log regression with Sprugel correction factor (SAS 9.1)"},"evidence":[{"field":"expression","quote":"Y = exp [a + b*ln(X)]","locator":"Materials and Methods, Data analysis"},{"field":"expression","quote":"Aboveground -2.155 2.199 0.103 0.963 1.000","locator":"Table 3 (columns a, b, RMSE, R2, CF)"},{"field":"fit.n_trees","quote":"A total of 18 representative sample trees were selected based on their DBH class.","locator":"Data collection"},{"field":"fit.dbh_min_cm","quote":"DBH (cm) 20 (13-28)","locator":"Table 1"}],"check":[{"inputs":{"D":15},"expected":44.7013,"origin":"computed","note":"computed from the Table 3 coefficients and CF"},{"inputs":{"D":25},"expected":137.4566,"origin":"computed","note":"computed from the Table 3 coefficients and CF"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Y = CF * exp[a + b*ln(X)], Y in kg, X = DBH in cm; the Sprugel correction factor CF = exp(SEE^2/2) from Table 3 is applied (text: Sprugel correction factors were used to correct the bias). Component composition of the aboveground total is not spelled out; Table 2 lists stem wood, stem bark, branch and needle. Table 3 prints no n per equation; n = 18 harvested sample trees (roots of all 18 reported in Table 2). Single 40-year-old stand."},{"id":"jung-2014-branch","source":"jung-2014","name":"Cryptomeria japonica Branch from DBH (Table 3)","output":{"quantity":"branch_biomass"},"expression":"1.003 * exp(-3.34 + 1.93 * ln(D))","published":{"expression":"1.003 * exp(-3.34 + 1.93 * ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Cryptomeria japonica","family":"Cupressaceae","group":"conifer"},"region":{"scope":"site","countries":["KR"],"place":"Hannam experimental forest, Mount Halla, Jeju Island, South Korea","biomes":["temperate","subtropical"]},"stand":"plantation","fit":{"n_trees":18,"dbh_min_cm":13,"dbh_max_cm":28,"h_min_m":9,"h_max_m":14,"r2":0.714,"cf":1.003,"method":"log-log regression with Sprugel correction factor (SAS 9.1)"},"evidence":[{"field":"expression","quote":"Y = exp [a + b*ln(X)]","locator":"Materials and Methods, Data analysis"},{"field":"expression","quote":"Branch -3.340 1.930 0.294 0.714 1.003","locator":"Table 3 (columns a, b, RMSE, R2, CF)"},{"field":"fit.n_trees","quote":"A total of 18 representative sample trees were selected based on their DBH class.","locator":"Data collection"},{"field":"fit.dbh_min_cm","quote":"DBH (cm) 20 (13-28)","locator":"Table 1"}],"check":[{"inputs":{"D":15},"expected":6.6163,"origin":"computed","note":"computed from the Table 3 coefficients and CF"},{"inputs":{"D":25},"expected":17.733,"origin":"computed","note":"computed from the Table 3 coefficients and CF"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Y = CF * exp[a + b*ln(X)], Y in kg, X = DBH in cm; the Sprugel correction factor CF = exp(SEE^2/2) from Table 3 is applied (text: Sprugel correction factors were used to correct the bias). Table 3 prints no n per equation; n = 18 harvested sample trees (roots of all 18 reported in Table 2). Single 40-year-old stand."},{"id":"jung-2014-foliage","source":"jung-2014","name":"Cryptomeria japonica Needle (foliage) from DBH (Table 3)","output":{"quantity":"foliage_biomass"},"expression":"1.003 * exp(-4.195 + 1.965 * ln(D))","published":{"expression":"1.003 * exp(-4.195 + 1.965 * ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Cryptomeria japonica","family":"Cupressaceae","group":"conifer"},"region":{"scope":"site","countries":["KR"],"place":"Hannam experimental forest, Mount Halla, Jeju Island, South Korea","biomes":["temperate","subtropical"]},"stand":"plantation","fit":{"n_trees":18,"dbh_min_cm":13,"dbh_max_cm":28,"h_min_m":9,"h_max_m":14,"r2":0.711,"cf":1.003,"method":"log-log regression with Sprugel correction factor (SAS 9.1)"},"evidence":[{"field":"expression","quote":"Y = exp [a + b*ln(X)]","locator":"Materials and Methods, Data analysis"},{"field":"expression","quote":"Needle -4.195 1.965 0.301 0.711 1.003","locator":"Table 3 (columns a, b, RMSE, R2, CF)"},{"field":"fit.n_trees","quote":"A total of 18 representative sample trees were selected based on their DBH class.","locator":"Data collection"},{"field":"fit.dbh_min_cm","quote":"DBH (cm) 20 (13-28)","locator":"Table 1"}],"check":[{"inputs":{"D":15},"expected":3.0935,"origin":"computed","note":"computed from the Table 3 coefficients and CF"},{"inputs":{"D":25},"expected":8.4409,"origin":"computed","note":"computed from the Table 3 coefficients and CF"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Y = CF * exp[a + b*ln(X)], Y in kg, X = DBH in cm; the Sprugel correction factor CF = exp(SEE^2/2) from Table 3 is applied (text: Sprugel correction factors were used to correct the bias). Table 3 prints no n per equation; n = 18 harvested sample trees (roots of all 18 reported in Table 2). Single 40-year-old stand."},{"id":"jung-2014-root","source":"jung-2014","name":"Cryptomeria japonica Root from DBH (Table 3)","output":{"quantity":"bgb"},"expression":"1.003 * exp(-3.059 + 2.124 * ln(D))","published":{"expression":"1.003 * exp(-3.059 + 2.124 * ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Cryptomeria japonica","family":"Cupressaceae","group":"conifer"},"region":{"scope":"site","countries":["KR"],"place":"Hannam experimental forest, Mount Halla, Jeju Island, South Korea","biomes":["temperate","subtropical"]},"stand":"plantation","fit":{"n_trees":18,"dbh_min_cm":13,"dbh_max_cm":28,"h_min_m":9,"h_max_m":14,"r2":0.709,"cf":1.003,"method":"log-log regression with Sprugel correction factor (SAS 9.1)"},"evidence":[{"field":"expression","quote":"Y = exp [a + b*ln(X)]","locator":"Materials and Methods, Data analysis"},{"field":"expression","quote":"Root -3.059 2.124 0.327 0.709 1.003","locator":"Table 3 (columns a, b, RMSE, R2, CF)"},{"field":"fit.n_trees","quote":"A total of 18 representative sample trees were selected based on their DBH class.","locator":"Data collection"},{"field":"fit.dbh_min_cm","quote":"DBH (cm) 20 (13-28)","locator":"Table 1"}],"check":[{"inputs":{"D":15},"expected":14.8188,"origin":"computed","note":"computed from the Table 3 coefficients and CF"},{"inputs":{"D":25},"expected":43.855,"origin":"computed","note":"computed from the Table 3 coefficients and CF"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Y = CF * exp[a + b*ln(X)], Y in kg, X = DBH in cm; the Sprugel correction factor CF = exp(SEE^2/2) from Table 3 is applied (text: Sprugel correction factors were used to correct the bias). Table 3 prints no n per equation; n = 18 harvested sample trees (roots of all 18 reported in Table 2). Single 40-year-old stand."},{"id":"jung-2014-stem","source":"jung-2014","name":"Cryptomeria japonica Stem (wood + bark) from DBH (Table 3)","output":{"quantity":"stem_biomass"},"expression":"1.001 * exp(-2.629 + 2.278 * ln(D))","published":{"expression":"1.001 * exp(-2.629 + 2.278 * ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Cryptomeria japonica","family":"Cupressaceae","group":"conifer"},"region":{"scope":"site","countries":["KR"],"place":"Hannam experimental forest, Mount Halla, Jeju Island, South Korea","biomes":["temperate","subtropical"]},"stand":"plantation","fit":{"n_trees":18,"dbh_min_cm":13,"dbh_max_cm":28,"h_min_m":9,"h_max_m":14,"r2":0.939,"cf":1.001,"method":"log-log regression with Sprugel correction factor (SAS 9.1)"},"evidence":[{"field":"expression","quote":"Y = exp [a + b*ln(X)]","locator":"Materials and Methods, Data analysis"},{"field":"expression","quote":"Stem -2.629 2.278 0.139 0.939 1.001","locator":"Table 3 (columns a, b, RMSE, R2, CF)"},{"field":"fit.n_trees","quote":"A total of 18 representative sample trees were selected based on their DBH class.","locator":"Data collection"},{"field":"fit.dbh_min_cm","quote":"DBH (cm) 20 (13-28)","locator":"Table 1"}],"check":[{"inputs":{"D":15},"expected":34.4993,"origin":"computed","note":"computed from the Table 3 coefficients and CF"},{"inputs":{"D":25},"expected":110.4539,"origin":"computed","note":"computed from the Table 3 coefficients and CF"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Y = CF * exp[a + b*ln(X)], Y in kg, X = DBH in cm; the Sprugel correction factor CF = exp(SEE^2/2) from Table 3 is applied (text: Sprugel correction factors were used to correct the bias). Table 3 prints no n per equation; n = 18 harvested sample trees (roots of all 18 reported in Table 2). Single 40-year-old stand."},{"id":"jung-2014-total","source":"jung-2014","name":"Cryptomeria japonica Total (above + below) from DBH (Table 3)","output":{"quantity":"total_biomass"},"expression":"1.0 * exp(-1.777 + 2.169 * ln(D))","published":{"expression":"1.0 * exp(-1.777 + 2.169 * ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Cryptomeria japonica","family":"Cupressaceae","group":"conifer"},"region":{"scope":"site","countries":["KR"],"place":"Hannam experimental forest, Mount Halla, Jeju Island, South Korea","biomes":["temperate","subtropical"]},"stand":"plantation","fit":{"n_trees":18,"dbh_min_cm":13,"dbh_max_cm":28,"h_min_m":9,"h_max_m":14,"r2":0.953,"cf":1,"method":"log-log regression with Sprugel correction factor (SAS 9.1)"},"evidence":[{"field":"expression","quote":"Y = exp [a + b*ln(X)]","locator":"Materials and Methods, Data analysis"},{"field":"expression","quote":"Total -1.777 2.169 0.116 0.953 1.000","locator":"Table 3 (columns a, b, RMSE, R2, CF)"},{"field":"fit.n_trees","quote":"A total of 18 representative sample trees were selected based on their DBH class.","locator":"Data collection"},{"field":"fit.dbh_min_cm","quote":"DBH (cm) 20 (13-28)","locator":"Table 1"}],"check":[{"inputs":{"D":15},"expected":60.1452,"origin":"computed","note":"computed from the Table 3 coefficients and CF"},{"inputs":{"D":25},"expected":182.1338,"origin":"computed","note":"computed from the Table 3 coefficients and CF"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Y = CF * exp[a + b*ln(X)], Y in kg, X = DBH in cm; the Sprugel correction factor CF = exp(SEE^2/2) from Table 3 is applied (text: Sprugel correction factors were used to correct the bias). Includes root. Table 3 prints no n per equation; n = 18 harvested sample trees (roots of all 18 reported in Table 2). Single 40-year-old stand."},{"id":"kachamba-2016-agb-m1","source":"kachamba-2016","name":"Malawi miombo AGB, DBH only (Model 1)","output":{"quantity":"agb","excludes":["foliage"]},"expression":"0.21691 * D^2.318391","published":{"expression":"0.21691 * dbh^2.318391","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Miombo woodland trees","group":"broadleaf"},"region":{"scope":"national","countries":["MW"],"place":"Miombo woodlands at Mtangatanga, Kongwe, Tsamba and Mua-livulezi, Malawi","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":74,"dbh_min_cm":5.3,"dbh_max_cm":111.2,"h_min_m":3,"h_max_m":25,"r2":0.93,"method":"weighted nonlinear regression (SAS PROC MODEL); r2 is pseudo-R2"},"evidence":[{"field":"expression","quote":"Aboveground 1 74 0.21691 × dbh^2.318391 0.93","locator":"Table 5"},{"field":"fit","quote":"All 74 33.4 5.3 111.2 21.8 11.6 3.0 25.0 4.9","locator":"Table 2 (dbh and height ranges)"}],"check":[{"inputs":{"D":20},"expected":225.2,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":60},"expected":2875.61,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Fitted by weighted nonlinear regression, so no back-transform correction factor. Leaves were excluded from the biomass."},{"id":"kachamba-2016-agb-m2","source":"kachamba-2016","name":"Malawi miombo AGB, DBH and height (Model 2, best AIC)","output":{"quantity":"agb","excludes":["foliage"]},"expression":"0.103685 * D^1.921719 * H^0.844561","published":{"expression":"0.103685 * dbh^1.921719 * ht^0.844561","units":{"dbh":"cm","ht":"m"},"variables":{"dbh":"D","ht":"H"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Miombo woodland trees","group":"broadleaf"},"region":{"scope":"national","countries":["MW"],"place":"Miombo woodlands at Mtangatanga, Kongwe, Tsamba and Mua-livulezi, Malawi","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":74,"dbh_min_cm":5.3,"dbh_max_cm":111.2,"h_min_m":3,"h_max_m":25,"r2":0.97,"method":"weighted nonlinear regression (SAS PROC MODEL); r2 is pseudo-R2"},"evidence":[{"field":"expression","quote":"2 74 0.103685 × dbh^1.921719 × ht^0.844561 0.97","locator":"Table 5"},{"field":"fit","quote":"All 74 33.4 5.3 111.2 21.8 11.6 3.0 25.0 4.9","locator":"Table 2 (dbh and height ranges)"}],"check":[{"inputs":{"D":20,"H":12},"expected":267.53,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":60,"H":20},"expected":3401.12,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Fitted by weighted nonlinear regression, so no back-transform correction factor. Leaves were excluded from the biomass."},{"id":"kachamba-2016-agb-m3","source":"kachamba-2016","name":"Malawi miombo AGB, DBH and wood density (Model 3)","output":{"quantity":"agb","excludes":["foliage"]},"expression":"0.290457 * D^2.283998 * rho^0.443619","published":{"expression":"0.290457 * dbh^2.283998 * WD^0.443619","units":{"dbh":"cm","WD":"g/cm3"},"variables":{"dbh":"D","WD":"rho"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Miombo woodland trees","group":"broadleaf"},"region":{"scope":"national","countries":["MW"],"place":"Miombo woodlands at Mtangatanga, Kongwe, Tsamba and Mua-livulezi, Malawi","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":74,"dbh_min_cm":5.3,"dbh_max_cm":111.2,"h_min_m":3,"h_max_m":25,"r2":0.94,"method":"weighted nonlinear regression (SAS PROC MODEL); r2 is pseudo-R2"},"evidence":[{"field":"expression","quote":"3 74 0.290457 × dbh^2.283998 × ρ^0.443619 0.94","locator":"Table 5"},{"field":"fit","quote":"All 74 33.4 5.3 111.2 21.8 11.6 3.0 25.0 4.9","locator":"Table 2 (dbh and height ranges)"}],"check":[{"inputs":{"D":20,"rho":0.7},"expected":232.23,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":60,"rho":0.7},"expected":2855.34,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Fitted by weighted nonlinear regression, so no back-transform correction factor. Leaves were excluded from the biomass. ρ is species-mean wood specific gravity from the global wood density database."},{"id":"kachamba-2016-bgb-m1","source":"kachamba-2016","name":"Malawi miombo belowground biomass, DBH only (Model 1)","output":{"quantity":"bgb"},"expression":"0.284615 * D^1.992658","published":{"expression":"0.284615 * dbh^1.992658","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Miombo woodland trees","group":"broadleaf"},"region":{"scope":"national","countries":["MW"],"place":"Miombo woodlands at Mtangatanga, Kongwe, Tsamba and Mua-livulezi, Malawi","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":41,"r2":0.94,"method":"weighted nonlinear regression (SAS PROC MODEL); r2 is pseudo-R2"},"evidence":[{"field":"expression","quote":"Belowground 1 41 0.284615 × dbh^1.992658 0.94","locator":"Table 5"}],"check":[{"inputs":{"D":20},"expected":111.37,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Fitted by weighted nonlinear regression; no correction factor."},{"id":"kang-2016-agb-d2h","source":"kang-2016","name":"Liriodendron tulipifera Above ground W = aD^2H (Table 11)","output":{"quantity":"agb"},"expression":"0.016 * D^2 * H","published":{"expression":"0.016 * DBH^2 * H","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D","H":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Liriodendron tulipifera","family":"Magnoliaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["KR"],"place":"Suwon (Gyeonggi), Jangseong and Gangjin (Jeollanam-do), South Korea","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":40,"dbh_min_cm":5.9,"dbh_max_cm":38.7,"h_min_m":6.6,"h_max_m":26.6,"r2":0.958,"method":"regression in SPSS 19.0"},"evidence":[{"field":"expression","quote":"Above ground 0.016 0.958","locator":"Table 11 (W=aD^2H)"},{"field":"fit.n_trees","quote":"조사한 백합나무 표준목은 40본이나 뿌리까지 굴취한 것은 21본이다.","locator":"결과 및 고찰 1 (Results 1)"}],"check":[{"inputs":{"D":15,"H":12},"expected":43.2,"origin":"computed","note":"computed from the Table 11 coefficients"},{"inputs":{"D":30,"H":22},"expected":316.8,"origin":"computed","note":"computed from the Table 11 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"W = dry weight in kg (Table 7 in kg), D = DBH in cm, H = tree height in m. The paper prints no correction factor, so none is applied. Above ground = stem + branch + foliage (Table 7). DBH 5.9-38.7 cm and height 6.6-26.6 m are the min and max of the per-site ranges in Table 6 (Suwon, Jangseong, Gangjin; ages 8-34 years)."},{"id":"kang-2016-agb-pow-d","source":"kang-2016","name":"Liriodendron tulipifera Above ground W = aD^b (Table 10)","output":{"quantity":"agb"},"expression":"0.06 * D^2.524","published":{"expression":"0.06 * DBH^2.524","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Liriodendron tulipifera","family":"Magnoliaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["KR"],"place":"Suwon (Gyeonggi), Jangseong and Gangjin (Jeollanam-do), South Korea","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":40,"dbh_min_cm":5.9,"dbh_max_cm":38.7,"r2":0.983,"method":"regression in SPSS 19.0 (power forms fitted on log-transformed data)"},"evidence":[{"field":"expression","quote":"Above ground 0.060 2.524 0.983","locator":"Table 10 (W=aD^b)"},{"field":"expression","quote":"지상부 바이오매스는 W=0.060D 2.524","locator":"결론 (Conclusion)"},{"field":"fit.n_trees","quote":"조사한 백합나무 표준목은 40본이나 뿌리까지 굴취한 것은 21본이다.","locator":"결과 및 고찰 1 (Results 1)"}],"check":[{"inputs":{"D":10},"expected":20.0517,"origin":"computed","note":"computed from the Table 10 coefficients"},{"inputs":{"D":25},"expected":202.5591,"origin":"computed","note":"computed from the Table 10 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"W = dry weight in kg (Table 7 in kg), D = DBH in cm. The paper prints no correction factor, so none is applied. Above ground = stem + branch + foliage (Table 7). DBH 5.9-38.7 cm and height 6.6-26.6 m are the min and max of the per-site ranges in Table 6 (Suwon, Jangseong, Gangjin; ages 8-34 years)."},{"id":"kang-2016-agb-pow-d2h","source":"kang-2016","name":"Liriodendron tulipifera Above ground W = a(D^2H)^b (Table 11)","output":{"quantity":"agb"},"expression":"0.03 * (D^2 * H)^0.927","published":{"expression":"0.03 * (DBH^2 * H)^0.927","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D","H":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Liriodendron tulipifera","family":"Magnoliaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["KR"],"place":"Suwon (Gyeonggi), Jangseong and Gangjin (Jeollanam-do), South Korea","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":40,"dbh_min_cm":5.9,"dbh_max_cm":38.7,"h_min_m":6.6,"h_max_m":26.6,"r2":0.975,"method":"regression in SPSS 19.0 (power forms fitted on log-transformed data)"},"evidence":[{"field":"expression","quote":"Above ground 0.030 0.927 0.975","locator":"Table 11 (W=a(D^2H)^b)"},{"field":"fit.n_trees","quote":"조사한 백합나무 표준목은 40본이나 뿌리까지 굴취한 것은 21본이다.","locator":"결과 및 고찰 1 (Results 1)"}],"check":[{"inputs":{"D":15,"H":12},"expected":45.4983,"origin":"computed","note":"computed from the Table 11 coefficients"},{"inputs":{"D":30,"H":22},"expected":288.4894,"origin":"computed","note":"computed from the Table 11 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"W = dry weight in kg (Table 7 in kg), D = DBH in cm, H = tree height in m. The paper prints no correction factor, so none is applied. Above ground = stem + branch + foliage (Table 7). DBH 5.9-38.7 cm and height 6.6-26.6 m are the min and max of the per-site ranges in Table 6 (Suwon, Jangseong, Gangjin; ages 8-34 years)."},{"id":"kang-2016-agb-pow-dh","source":"kang-2016","name":"Liriodendron tulipifera Above ground W = aD^b H^c (Table 11)","output":{"quantity":"agb"},"expression":"0.055 * D^2.45 * H^0.105","published":{"expression":"0.055 * DBH^2.45 * H^0.105","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D","H":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Liriodendron tulipifera","family":"Magnoliaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["KR"],"place":"Suwon (Gyeonggi), Jangseong and Gangjin (Jeollanam-do), South Korea","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":40,"dbh_min_cm":5.9,"dbh_max_cm":38.7,"h_min_m":6.6,"h_max_m":26.6,"r2":0.983,"method":"regression in SPSS 19.0 (power forms fitted on log-transformed data)"},"evidence":[{"field":"expression","quote":"Above ground 0.055 2.450 0.105 0.983","locator":"Table 11 (W=aD^bH^c)"},{"field":"fit.n_trees","quote":"조사한 백합나무 표준목은 40본이나 뿌리까지 굴취한 것은 21본이다.","locator":"결과 및 고찰 1 (Results 1)"}],"check":[{"inputs":{"D":15,"H":12},"expected":54.3376,"origin":"computed","note":"computed from the Table 11 coefficients"},{"inputs":{"D":30,"H":22},"expected":316.4202,"origin":"computed","note":"computed from the Table 11 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"W = dry weight in kg (Table 7 in kg), D = DBH in cm, H = tree height in m. The paper prints no correction factor, so none is applied. Above ground = stem + branch + foliage (Table 7). DBH 5.9-38.7 cm and height 6.6-26.6 m are the min and max of the per-site ranges in Table 6 (Suwon, Jangseong, Gangjin; ages 8-34 years)."},{"id":"kang-2016-agb-quad-d","source":"kang-2016","name":"Liriodendron tulipifera Above ground W = aD + bD^2 (Table 10)","output":{"quantity":"agb"},"expression":"-3.49 * D + 0.486 * D^2","published":{"expression":"-3.49 * DBH + 0.486 * DBH^2","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Liriodendron tulipifera","family":"Magnoliaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["KR"],"place":"Suwon (Gyeonggi), Jangseong and Gangjin (Jeollanam-do), South Korea","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":40,"dbh_min_cm":5.9,"dbh_max_cm":38.7,"r2":0.957,"method":"regression in SPSS 19.0"},"evidence":[{"field":"expression","quote":"Above ground -3.490 0.486 0.957","locator":"Table 10 (W=aD+bD^2)"},{"field":"fit.n_trees","quote":"조사한 백합나무 표준목은 40본이나 뿌리까지 굴취한 것은 21본이다.","locator":"결과 및 고찰 1 (Results 1)"}],"check":[{"inputs":{"D":15},"expected":57,"origin":"computed","note":"computed from the Table 10 coefficients"},{"inputs":{"D":30},"expected":332.7,"origin":"computed","note":"computed from the Table 10 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"W = dry weight in kg (Table 7 in kg), D = DBH in cm. The paper prints no correction factor, so none is applied. Above ground = stem + branch + foliage (Table 7). Predicts negative biomass below about 12 cm DBH (authors' remark), so the authors prefer the power form. DBH 5.9-38.7 cm and height 6.6-26.6 m are the min and max of the per-site ranges in Table 6 (Suwon, Jangseong, Gangjin; ages 8-34 years)."},{"id":"kang-2016-branch-d2h","source":"kang-2016","name":"Liriodendron tulipifera Branch W = aD^2H (Table 11)","output":{"quantity":"branch_biomass"},"expression":"0.002 * D^2 * H","published":{"expression":"0.002 * DBH^2 * H","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D","H":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Liriodendron tulipifera","family":"Magnoliaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["KR"],"place":"Suwon (Gyeonggi), Jangseong and Gangjin (Jeollanam-do), South Korea","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":40,"dbh_min_cm":5.9,"dbh_max_cm":38.7,"h_min_m":6.6,"h_max_m":26.6,"r2":0.842,"method":"regression in SPSS 19.0"},"evidence":[{"field":"expression","quote":"Branch 0.002 0.842","locator":"Table 11 (W=aD^2H)"},{"field":"fit.n_trees","quote":"조사한 백합나무 표준목은 40본이나 뿌리까지 굴취한 것은 21본이다.","locator":"결과 및 고찰 1 (Results 1)"}],"check":[{"inputs":{"D":15,"H":12},"expected":5.4,"origin":"computed","note":"computed from the Table 11 coefficients"},{"inputs":{"D":30,"H":22},"expected":39.6,"origin":"computed","note":"computed from the Table 11 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"W = dry weight in kg (Table 7 in kg), D = DBH in cm, H = tree height in m. The paper prints no correction factor, so none is applied. DBH 5.9-38.7 cm and height 6.6-26.6 m are the min and max of the per-site ranges in Table 6 (Suwon, Jangseong, Gangjin; ages 8-34 years)."},{"id":"kang-2016-branch-pow-d","source":"kang-2016","name":"Liriodendron tulipifera Branch W = aD^b (Table 10)","output":{"quantity":"branch_biomass"},"expression":"0.003 * D^2.758","published":{"expression":"0.003 * DBH^2.758","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Liriodendron tulipifera","family":"Magnoliaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["KR"],"place":"Suwon (Gyeonggi), Jangseong and Gangjin (Jeollanam-do), South Korea","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":40,"dbh_min_cm":5.9,"dbh_max_cm":38.7,"r2":0.796,"method":"regression in SPSS 19.0 (power forms fitted on log-transformed data)"},"evidence":[{"field":"expression","quote":"Branch 0.003 2.758 0.796","locator":"Table 10 (W=aD^b)"},{"field":"fit.n_trees","quote":"조사한 백합나무 표준목은 40본이나 뿌리까지 굴취한 것은 21본이다.","locator":"결과 및 고찰 1 (Results 1)"}],"check":[{"inputs":{"D":10},"expected":1.7184,"origin":"computed","note":"computed from the Table 10 coefficients"},{"inputs":{"D":25},"expected":21.51,"origin":"computed","note":"computed from the Table 10 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"W = dry weight in kg (Table 7 in kg), D = DBH in cm. The paper prints no correction factor, so none is applied. DBH 5.9-38.7 cm and height 6.6-26.6 m are the min and max of the per-site ranges in Table 6 (Suwon, Jangseong, Gangjin; ages 8-34 years)."},{"id":"kang-2016-branch-pow-d2h","source":"kang-2016","name":"Liriodendron tulipifera Branch W = a(D^2H)^b (Table 11)","output":{"quantity":"branch_biomass"},"expression":"0.002 * (D^2 * H)^0.985","published":{"expression":"0.002 * (DBH^2 * H)^0.985","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D","H":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Liriodendron tulipifera","family":"Magnoliaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["KR"],"place":"Suwon (Gyeonggi), Jangseong and Gangjin (Jeollanam-do), South Korea","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":40,"dbh_min_cm":5.9,"dbh_max_cm":38.7,"h_min_m":6.6,"h_max_m":26.6,"r2":0.747,"method":"regression in SPSS 19.0 (power forms fitted on log-transformed data)"},"evidence":[{"field":"expression","quote":"Branch 0.002 0.985 0.747","locator":"Table 11 (W=a(D^2H)^b)"},{"field":"fit.n_trees","quote":"조사한 백합나무 표준목은 40본이나 뿌리까지 굴취한 것은 21본이다.","locator":"결과 및 고찰 1 (Results 1)"}],"check":[{"inputs":{"D":15,"H":12},"expected":4.7965,"origin":"computed","note":"computed from the Table 11 coefficients"},{"inputs":{"D":30,"H":22},"expected":34.1386,"origin":"computed","note":"computed from the Table 11 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"W = dry weight in kg (Table 7 in kg), D = DBH in cm, H = tree height in m. The paper prints no correction factor, so none is applied. DBH 5.9-38.7 cm and height 6.6-26.6 m are the min and max of the per-site ranges in Table 6 (Suwon, Jangseong, Gangjin; ages 8-34 years)."},{"id":"kang-2016-branch-pow-dh","source":"kang-2016","name":"Liriodendron tulipifera Branch W = aD^b H^c (Table 11)","output":{"quantity":"branch_biomass"},"expression":"0.02 * D^4.452 * H^(-2.43)","published":{"expression":"0.02 * DBH^4.452 * H^(-2.43)","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D","H":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Liriodendron tulipifera","family":"Magnoliaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["KR"],"place":"Suwon (Gyeonggi), Jangseong and Gangjin (Jeollanam-do), South Korea","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":40,"dbh_min_cm":5.9,"dbh_max_cm":38.7,"h_min_m":6.6,"h_max_m":26.6,"r2":0.846,"method":"regression in SPSS 19.0 (power forms fitted on log-transformed data)"},"evidence":[{"field":"expression","quote":"Branch 0.020 4.452 -2.430 0.846","locator":"Table 11 (W=aD^bH^c)"},{"field":"fit.n_trees","quote":"조사한 백합나무 표준목은 40본이나 뿌리까지 굴취한 것은 21본이다.","locator":"결과 및 고찰 1 (Results 1)"}],"check":[{"inputs":{"D":15,"H":12},"expected":8.2144,"origin":"computed","note":"computed from the Table 11 coefficients"},{"inputs":{"D":30,"H":22},"expected":41.218,"origin":"computed","note":"computed from the Table 11 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"W = dry weight in kg (Table 7 in kg), D = DBH in cm, H = tree height in m. The paper prints no correction factor, so none is applied. DBH 5.9-38.7 cm and height 6.6-26.6 m are the min and max of the per-site ranges in Table 6 (Suwon, Jangseong, Gangjin; ages 8-34 years)."},{"id":"kang-2016-branch-quad-d","source":"kang-2016","name":"Liriodendron tulipifera Branch W = aD + bD^2 (Table 10)","output":{"quantity":"branch_biomass"},"expression":"-0.489 * D + 0.058 * D^2","published":{"expression":"-0.489 * DBH + 0.058 * DBH^2","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Liriodendron tulipifera","family":"Magnoliaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["KR"],"place":"Suwon (Gyeonggi), Jangseong and Gangjin (Jeollanam-do), South Korea","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":40,"dbh_min_cm":5.9,"dbh_max_cm":38.7,"r2":0.843,"method":"regression in SPSS 19.0"},"evidence":[{"field":"expression","quote":"Branch -0.489 0.058 0.843","locator":"Table 10 (W=aD+bD^2)"},{"field":"fit.n_trees","quote":"조사한 백합나무 표준목은 40본이나 뿌리까지 굴취한 것은 21본이다.","locator":"결과 및 고찰 1 (Results 1)"}],"check":[{"inputs":{"D":15},"expected":5.715,"origin":"computed","note":"computed from the Table 10 coefficients"},{"inputs":{"D":30},"expected":37.53,"origin":"computed","note":"computed from the Table 10 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"W = dry weight in kg (Table 7 in kg), D = DBH in cm. The paper prints no correction factor, so none is applied. Predicts negative biomass below about 12 cm DBH (authors' remark), so the authors prefer the power form. DBH 5.9-38.7 cm and height 6.6-26.6 m are the min and max of the per-site ranges in Table 6 (Suwon, Jangseong, Gangjin; ages 8-34 years)."},{"id":"kang-2016-foliage-d2h","source":"kang-2016","name":"Liriodendron tulipifera Foliage W = aD^2H (Table 11)","output":{"quantity":"foliage_biomass"},"expression":"0.0003 * D^2 * H","published":{"expression":"0.0003 * DBH^2 * H","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D","H":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Liriodendron tulipifera","family":"Magnoliaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["KR"],"place":"Suwon (Gyeonggi), Jangseong and Gangjin (Jeollanam-do), South Korea","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":40,"dbh_min_cm":5.9,"dbh_max_cm":38.7,"h_min_m":6.6,"h_max_m":26.6,"r2":0.812,"method":"regression in SPSS 19.0"},"evidence":[{"field":"expression","quote":"Foliage 0.0003 0.812","locator":"Table 11 (W=aD^2H)"},{"field":"fit.n_trees","quote":"조사한 백합나무 표준목은 40본이나 뿌리까지 굴취한 것은 21본이다.","locator":"결과 및 고찰 1 (Results 1)"}],"check":[{"inputs":{"D":15,"H":12},"expected":0.81,"origin":"computed","note":"computed from the Table 11 coefficients"},{"inputs":{"D":30,"H":22},"expected":5.94,"origin":"computed","note":"computed from the Table 11 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"W = dry weight in kg (Table 7 in kg), D = DBH in cm, H = tree height in m. The paper prints no correction factor, so none is applied. DBH 5.9-38.7 cm and height 6.6-26.6 m are the min and max of the per-site ranges in Table 6 (Suwon, Jangseong, Gangjin; ages 8-34 years)."},{"id":"kang-2016-foliage-pow-d","source":"kang-2016","name":"Liriodendron tulipifera Foliage W = aD^b (Table 10)","output":{"quantity":"foliage_biomass"},"expression":"0.005 * D^2.092","published":{"expression":"0.005 * DBH^2.092","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Liriodendron tulipifera","family":"Magnoliaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["KR"],"place":"Suwon (Gyeonggi), Jangseong and Gangjin (Jeollanam-do), South Korea","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":40,"dbh_min_cm":5.9,"dbh_max_cm":38.7,"r2":0.584,"method":"regression in SPSS 19.0 (power forms fitted on log-transformed data)"},"evidence":[{"field":"expression","quote":"Foliage 0.005 2.092 0.584","locator":"Table 10 (W=aD^b)"},{"field":"fit.n_trees","quote":"조사한 백합나무 표준목은 40본이나 뿌리까지 굴취한 것은 21본이다.","locator":"결과 및 고찰 1 (Results 1)"}],"check":[{"inputs":{"D":10},"expected":0.618,"origin":"computed","note":"computed from the Table 10 coefficients"},{"inputs":{"D":25},"expected":4.202,"origin":"computed","note":"computed from the Table 10 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"W = dry weight in kg (Table 7 in kg), D = DBH in cm. The paper prints no correction factor, so none is applied. DBH 5.9-38.7 cm and height 6.6-26.6 m are the min and max of the per-site ranges in Table 6 (Suwon, Jangseong, Gangjin; ages 8-34 years)."},{"id":"kang-2016-foliage-pow-d2h","source":"kang-2016","name":"Liriodendron tulipifera Foliage W = a(D^2H)^b (Table 11)","output":{"quantity":"foliage_biomass"},"expression":"0.004 * (D^2 * H)^0.73","published":{"expression":"0.004 * (DBH^2 * H)^0.73","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D","H":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Liriodendron tulipifera","family":"Magnoliaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["KR"],"place":"Suwon (Gyeonggi), Jangseong and Gangjin (Jeollanam-do), South Korea","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":40,"dbh_min_cm":5.9,"dbh_max_cm":38.7,"h_min_m":6.6,"h_max_m":26.6,"r2":0.522,"method":"regression in SPSS 19.0 (power forms fitted on log-transformed data)"},"evidence":[{"field":"expression","quote":"Foliage 0.004 0.730 0.522","locator":"Table 11 (W=a(D^2H)^b)"},{"field":"fit.n_trees","quote":"조사한 백합나무 표준목은 40본이나 뿌리까지 굴취한 것은 21본이다.","locator":"결과 및 고찰 1 (Results 1)"}],"check":[{"inputs":{"D":15,"H":12},"expected":1.2793,"origin":"computed","note":"computed from the Table 11 coefficients"},{"inputs":{"D":30,"H":22},"expected":5.478,"origin":"computed","note":"computed from the Table 11 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"W = dry weight in kg (Table 7 in kg), D = DBH in cm, H = tree height in m. The paper prints no correction factor, so none is applied. DBH 5.9-38.7 cm and height 6.6-26.6 m are the min and max of the per-site ranges in Table 6 (Suwon, Jangseong, Gangjin; ages 8-34 years)."},{"id":"kang-2016-foliage-pow-dh","source":"kang-2016","name":"Liriodendron tulipifera Foliage W = aD^b H^c (Table 11)","output":{"quantity":"foliage_biomass"},"expression":"0.072 * D^4.401 * H^(-3.313)","published":{"expression":"0.072 * DBH^4.401 * H^(-3.313)","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D","H":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Liriodendron tulipifera","family":"Magnoliaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["KR"],"place":"Suwon (Gyeonggi), Jangseong and Gangjin (Jeollanam-do), South Korea","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":40,"dbh_min_cm":5.9,"dbh_max_cm":38.7,"h_min_m":6.6,"h_max_m":26.6,"r2":0.702,"method":"regression in SPSS 19.0 (power forms fitted on log-transformed data)"},"evidence":[{"field":"expression","quote":"Foliage 0.072 4.401 -3.313 0.702","locator":"Table 11 (W=aD^bH^c)"},{"field":"fit.n_trees","quote":"조사한 백합나무 표준목은 40본이나 뿌리까지 굴취한 것은 21본이다.","locator":"결과 및 고찰 1 (Results 1)"}],"check":[{"inputs":{"D":15,"H":12},"expected":2.8707,"origin":"computed","note":"computed from the Table 11 coefficients"},{"inputs":{"D":30,"H":22},"expected":8.1414,"origin":"computed","note":"computed from the Table 11 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"W = dry weight in kg (Table 7 in kg), D = DBH in cm, H = tree height in m. The paper prints no correction factor, so none is applied. DBH 5.9-38.7 cm and height 6.6-26.6 m are the min and max of the per-site ranges in Table 6 (Suwon, Jangseong, Gangjin; ages 8-34 years)."},{"id":"kang-2016-foliage-quad-d","source":"kang-2016","name":"Liriodendron tulipifera Foliage W = aD + bD^2 (Table 10)","output":{"quantity":"foliage_biomass"},"expression":"0.057 * D + 0.005 * D^2","published":{"expression":"0.057 * DBH + 0.005 * DBH^2","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Liriodendron tulipifera","family":"Magnoliaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["KR"],"place":"Suwon (Gyeonggi), Jangseong and Gangjin (Jeollanam-do), South Korea","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":40,"dbh_min_cm":5.9,"dbh_max_cm":38.7,"r2":0.851,"method":"regression in SPSS 19.0"},"evidence":[{"field":"expression","quote":"Foliage 0.057 0.005 0.851","locator":"Table 10 (W=aD+bD^2)"},{"field":"fit.n_trees","quote":"조사한 백합나무 표준목은 40본이나 뿌리까지 굴취한 것은 21본이다.","locator":"결과 및 고찰 1 (Results 1)"}],"check":[{"inputs":{"D":15},"expected":1.98,"origin":"computed","note":"computed from the Table 10 coefficients"},{"inputs":{"D":30},"expected":6.21,"origin":"computed","note":"computed from the Table 10 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"W = dry weight in kg (Table 7 in kg), D = DBH in cm. The paper prints no correction factor, so none is applied. Predicts negative biomass below about 12 cm DBH (authors' remark), so the authors prefer the power form. DBH 5.9-38.7 cm and height 6.6-26.6 m are the min and max of the per-site ranges in Table 6 (Suwon, Jangseong, Gangjin; ages 8-34 years)."},{"id":"kang-2016-root-d2h","source":"kang-2016","name":"Liriodendron tulipifera Root W = aD^2H (Table 11)","output":{"quantity":"bgb"},"expression":"0.004 * D^2 * H","published":{"expression":"0.004 * DBH^2 * H","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D","H":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Liriodendron tulipifera","family":"Magnoliaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["KR"],"place":"Suwon (Gyeonggi), Jangseong and Gangjin (Jeollanam-do), South Korea","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.884,"method":"regression in SPSS 19.0"},"evidence":[{"field":"expression","quote":"Root 0.004 0.884","locator":"Table 11 (W=aD^2H)"}],"check":[{"inputs":{"D":15,"H":12},"expected":10.8,"origin":"computed","note":"computed from the Table 11 coefficients"},{"inputs":{"D":30,"H":22},"expected":79.2,"origin":"computed","note":"computed from the Table 11 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"W = dry weight in kg (Table 7 in kg), D = DBH in cm, H = tree height in m. The paper prints no correction factor, so none is applied. Only 21 of the 40 trees were excavated for roots; the paper does not state n or the DBH/height range for this equation, so they are omitted."},{"id":"kang-2016-root-pow-d","source":"kang-2016","name":"Liriodendron tulipifera Root W = aD^b (Table 10)","output":{"quantity":"bgb"},"expression":"0.01 * D^2.591","published":{"expression":"0.01 * DBH^2.591","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Liriodendron tulipifera","family":"Magnoliaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["KR"],"place":"Suwon (Gyeonggi), Jangseong and Gangjin (Jeollanam-do), South Korea","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.863,"method":"regression in SPSS 19.0 (power forms fitted on log-transformed data)"},"evidence":[{"field":"expression","quote":"Root 0.010 2.591 0.863","locator":"Table 10 (W=aD^b)"},{"field":"expression","quote":"지하부는 W=0.010D 2.591","locator":"결론 (Conclusion)"}],"check":[{"inputs":{"D":10},"expected":3.8994,"origin":"computed","note":"computed from the Table 10 coefficients"},{"inputs":{"D":25},"expected":41.8854,"origin":"computed","note":"computed from the Table 10 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"W = dry weight in kg (Table 7 in kg), D = DBH in cm. The paper prints no correction factor, so none is applied. Only 21 of the 40 trees were excavated for roots; the paper does not state n or the DBH/height range for this equation, so they are omitted."},{"id":"kang-2016-root-pow-d2h","source":"kang-2016","name":"Liriodendron tulipifera Root W = a(D^2H)^b (Table 11)","output":{"quantity":"bgb"},"expression":"0.006 * (D^2 * H)^0.941","published":{"expression":"0.006 * (DBH^2 * H)^0.941","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D","H":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Liriodendron tulipifera","family":"Magnoliaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["KR"],"place":"Suwon (Gyeonggi), Jangseong and Gangjin (Jeollanam-do), South Korea","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.847,"method":"regression in SPSS 19.0 (power forms fitted on log-transformed data)"},"evidence":[{"field":"expression","quote":"Root 0.006 0.941 0.847","locator":"Table 11 (W=a(D^2H)^b)"}],"check":[{"inputs":{"D":15,"H":12},"expected":10.164,"origin":"computed","note":"computed from the Table 11 coefficients"},{"inputs":{"D":30,"H":22},"expected":66.2694,"origin":"computed","note":"computed from the Table 11 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"W = dry weight in kg (Table 7 in kg), D = DBH in cm, H = tree height in m. The paper prints no correction factor, so none is applied. Only 21 of the 40 trees were excavated for roots; the paper does not state n or the DBH/height range for this equation, so they are omitted."},{"id":"kang-2016-root-pow-dh","source":"kang-2016","name":"Liriodendron tulipifera Root W = aD^b H^c (Table 11)","output":{"quantity":"bgb"},"expression":"0.012 * D^2.688 * H^(-0.139)","published":{"expression":"0.012 * DBH^2.688 * H^(-0.139)","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D","H":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Liriodendron tulipifera","family":"Magnoliaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["KR"],"place":"Suwon (Gyeonggi), Jangseong and Gangjin (Jeollanam-do), South Korea","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.863,"method":"regression in SPSS 19.0 (power forms fitted on log-transformed data)"},"evidence":[{"field":"expression","quote":"Root 0.012 2.688 -0.139 0.863","locator":"Table 11 (W=aD^bH^c)"}],"check":[{"inputs":{"D":15,"H":12},"expected":12.3171,"origin":"computed","note":"computed from the Table 11 coefficients"},{"inputs":{"D":30,"H":22},"expected":72.9603,"origin":"computed","note":"computed from the Table 11 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"W = dry weight in kg (Table 7 in kg), D = DBH in cm, H = tree height in m. The paper prints no correction factor, so none is applied. Only 21 of the 40 trees were excavated for roots; the paper does not state n or the DBH/height range for this equation, so they are omitted."},{"id":"kang-2016-root-quad-d","source":"kang-2016","name":"Liriodendron tulipifera Root W = aD + bD^2 (Table 10)","output":{"quantity":"bgb"},"expression":"-1.943 * D + 0.155 * D^2","published":{"expression":"-1.943 * DBH + 0.155 * DBH^2","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Liriodendron tulipifera","family":"Magnoliaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["KR"],"place":"Suwon (Gyeonggi), Jangseong and Gangjin (Jeollanam-do), South Korea","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.919,"method":"regression in SPSS 19.0"},"evidence":[{"field":"expression","quote":"Root -1.943 0.155 0.919","locator":"Table 10 (W=aD+bD^2)"}],"check":[{"inputs":{"D":15},"expected":5.73,"origin":"computed","note":"computed from the Table 10 coefficients"},{"inputs":{"D":30},"expected":81.21,"origin":"computed","note":"computed from the Table 10 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"W = dry weight in kg (Table 7 in kg), D = DBH in cm. The paper prints no correction factor, so none is applied. Predicts negative biomass below about 12 cm DBH (authors' remark), so the authors prefer the power form. Only 21 of the 40 trees were excavated for roots; the paper does not state n or the DBH/height range for this equation, so they are omitted."},{"id":"kang-2016-stem-d2h","source":"kang-2016","name":"Liriodendron tulipifera Stem W = aD^2H (Table 11)","output":{"quantity":"stem_biomass"},"expression":"0.014 * D^2 * H","published":{"expression":"0.014 * DBH^2 * H","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D","H":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Liriodendron tulipifera","family":"Magnoliaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["KR"],"place":"Suwon (Gyeonggi), Jangseong and Gangjin (Jeollanam-do), South Korea","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":40,"dbh_min_cm":5.9,"dbh_max_cm":38.7,"h_min_m":6.6,"h_max_m":26.6,"r2":0.967,"method":"regression in SPSS 19.0"},"evidence":[{"field":"expression","quote":"Stem 0.014 0.967","locator":"Table 11 (W=aD^2H)"},{"field":"fit.n_trees","quote":"조사한 백합나무 표준목은 40본이나 뿌리까지 굴취한 것은 21본이다.","locator":"결과 및 고찰 1 (Results 1)"}],"check":[{"inputs":{"D":15,"H":12},"expected":37.8,"origin":"computed","note":"computed from the Table 11 coefficients"},{"inputs":{"D":30,"H":22},"expected":277.2,"origin":"computed","note":"computed from the Table 11 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"W = dry weight in kg (Table 7 in kg), D = DBH in cm, H = tree height in m. The paper prints no correction factor, so none is applied. DBH 5.9-38.7 cm and height 6.6-26.6 m are the min and max of the per-site ranges in Table 6 (Suwon, Jangseong, Gangjin; ages 8-34 years)."},{"id":"kang-2016-stem-pow-d","source":"kang-2016","name":"Liriodendron tulipifera Stem W = aD^b (Table 10)","output":{"quantity":"stem_biomass"},"expression":"0.042 * D^2.587","published":{"expression":"0.042 * DBH^2.587","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Liriodendron tulipifera","family":"Magnoliaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["KR"],"place":"Suwon (Gyeonggi), Jangseong and Gangjin (Jeollanam-do), South Korea","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":40,"dbh_min_cm":5.9,"dbh_max_cm":38.7,"r2":0.983,"method":"regression in SPSS 19.0 (power forms fitted on log-transformed data)"},"evidence":[{"field":"expression","quote":"Stem 0.042 2.587 0.983","locator":"Table 10 (W=aD^b)"},{"field":"fit.n_trees","quote":"조사한 백합나무 표준목은 40본이나 뿌리까지 굴취한 것은 21본이다.","locator":"결과 및 고찰 1 (Results 1)"}],"check":[{"inputs":{"D":10},"expected":16.2274,"origin":"computed","note":"computed from the Table 10 coefficients"},{"inputs":{"D":25},"expected":173.6681,"origin":"computed","note":"computed from the Table 10 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"W = dry weight in kg (Table 7 in kg), D = DBH in cm. The paper prints no correction factor, so none is applied. DBH 5.9-38.7 cm and height 6.6-26.6 m are the min and max of the per-site ranges in Table 6 (Suwon, Jangseong, Gangjin; ages 8-34 years)."},{"id":"kang-2016-stem-pow-d2h","source":"kang-2016","name":"Liriodendron tulipifera Stem W = a(D^2H)^b (Table 11)","output":{"quantity":"stem_biomass"},"expression":"0.02 * (D^2 * H)^0.957","published":{"expression":"0.02 * (DBH^2 * H)^0.957","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D","H":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Liriodendron tulipifera","family":"Magnoliaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["KR"],"place":"Suwon (Gyeonggi), Jangseong and Gangjin (Jeollanam-do), South Korea","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":40,"dbh_min_cm":5.9,"dbh_max_cm":38.7,"h_min_m":6.6,"h_max_m":26.6,"r2":0.988,"method":"regression in SPSS 19.0 (power forms fitted on log-transformed data)"},"evidence":[{"field":"expression","quote":"Stem 0.020 0.957 0.988","locator":"Table 11 (W=a(D^2H)^b)"},{"field":"fit.n_trees","quote":"조사한 백합나무 표준목은 40본이나 뿌리까지 굴취한 것은 21본이다.","locator":"결과 및 고찰 1 (Results 1)"}],"check":[{"inputs":{"D":15,"H":12},"expected":38.4455,"origin":"computed","note":"computed from the Table 11 coefficients"},{"inputs":{"D":30,"H":22},"expected":258.7847,"origin":"computed","note":"computed from the Table 11 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"W = dry weight in kg (Table 7 in kg), D = DBH in cm, H = tree height in m. The paper prints no correction factor, so none is applied. DBH 5.9-38.7 cm and height 6.6-26.6 m are the min and max of the per-site ranges in Table 6 (Suwon, Jangseong, Gangjin; ages 8-34 years)."},{"id":"kang-2016-stem-pow-dh","source":"kang-2016","name":"Liriodendron tulipifera Stem W = aD^b H^c (Table 11)","output":{"quantity":"stem_biomass"},"expression":"0.025 * D^2.117 * H^0.674","published":{"expression":"0.025 * DBH^2.117 * H^0.674","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D","H":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Liriodendron tulipifera","family":"Magnoliaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["KR"],"place":"Suwon (Gyeonggi), Jangseong and Gangjin (Jeollanam-do), South Korea","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":40,"dbh_min_cm":5.9,"dbh_max_cm":38.7,"h_min_m":6.6,"h_max_m":26.6,"r2":0.988,"method":"regression in SPSS 19.0 (power forms fitted on log-transformed data)"},"evidence":[{"field":"expression","quote":"Stem 0.025 2.117 0.674 0.988","locator":"Table 11 (W=aD^bH^c)"},{"field":"fit.n_trees","quote":"조사한 백합나무 표준목은 40본이나 뿌리까지 굴취한 것은 21본이다.","locator":"결과 및 고찰 1 (Results 1)"}],"check":[{"inputs":{"D":15,"H":12},"expected":41.2186,"origin":"computed","note":"computed from the Table 11 coefficients"},{"inputs":{"D":30,"H":22},"expected":269.0287,"origin":"computed","note":"computed from the Table 11 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"W = dry weight in kg (Table 7 in kg), D = DBH in cm, H = tree height in m. The paper prints no correction factor, so none is applied. DBH 5.9-38.7 cm and height 6.6-26.6 m are the min and max of the per-site ranges in Table 6 (Suwon, Jangseong, Gangjin; ages 8-34 years)."},{"id":"kang-2016-stem-quad-d","source":"kang-2016","name":"Liriodendron tulipifera Stem W = aD + bD^2 (Table 10)","output":{"quantity":"stem_biomass"},"expression":"-3.058 * D + 0.423 * D^2","published":{"expression":"-3.058 * DBH + 0.423 * DBH^2","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Liriodendron tulipifera","family":"Magnoliaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["KR"],"place":"Suwon (Gyeonggi), Jangseong and Gangjin (Jeollanam-do), South Korea","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":40,"dbh_min_cm":5.9,"dbh_max_cm":38.7,"r2":0.964,"method":"regression in SPSS 19.0"},"evidence":[{"field":"expression","quote":"Stem -3.058 0.423 0.964","locator":"Table 10 (W=aD+bD^2)"},{"field":"fit.n_trees","quote":"조사한 백합나무 표준목은 40본이나 뿌리까지 굴취한 것은 21본이다.","locator":"결과 및 고찰 1 (Results 1)"}],"check":[{"inputs":{"D":15},"expected":49.305,"origin":"computed","note":"computed from the Table 10 coefficients"},{"inputs":{"D":30},"expected":288.96,"origin":"computed","note":"computed from the Table 10 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"W = dry weight in kg (Table 7 in kg), D = DBH in cm. The paper prints no correction factor, so none is applied. Predicts negative biomass below about 12 cm DBH (authors' remark), so the authors prefer the power form. DBH 5.9-38.7 cm and height 6.6-26.6 m are the min and max of the per-site ranges in Table 6 (Suwon, Jangseong, Gangjin; ages 8-34 years)."},{"id":"kang-2016-total-d2h","source":"kang-2016","name":"Liriodendron tulipifera Total W = aD^2H (Table 11)","output":{"quantity":"total_biomass"},"expression":"0.021 * D^2 * H","published":{"expression":"0.021 * DBH^2 * H","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D","H":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Liriodendron tulipifera","family":"Magnoliaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["KR"],"place":"Suwon (Gyeonggi), Jangseong and Gangjin (Jeollanam-do), South Korea","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.963,"method":"regression in SPSS 19.0"},"evidence":[{"field":"expression","quote":"Total 0.021 0.963","locator":"Table 11 (W=aD^2H)"}],"check":[{"inputs":{"D":15,"H":12},"expected":56.7,"origin":"computed","note":"computed from the Table 11 coefficients"},{"inputs":{"D":30,"H":22},"expected":415.8,"origin":"computed","note":"computed from the Table 11 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"W = dry weight in kg (Table 7 in kg), D = DBH in cm, H = tree height in m. The paper prints no correction factor, so none is applied. Includes root. Total biomass includes roots (available for 21 trees); n and ranges for this equation are not printed, so they are omitted."},{"id":"kang-2016-total-pow-d","source":"kang-2016","name":"Liriodendron tulipifera Total W = aD^b (Table 10)","output":{"quantity":"total_biomass"},"expression":"0.063 * D^2.578","published":{"expression":"0.063 * DBH^2.578","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Liriodendron tulipifera","family":"Magnoliaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["KR"],"place":"Suwon (Gyeonggi), Jangseong and Gangjin (Jeollanam-do), South Korea","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.977,"method":"regression in SPSS 19.0 (power forms fitted on log-transformed data)"},"evidence":[{"field":"expression","quote":"Total 0.063 2.578 0.977","locator":"Table 10 (W=aD^b)"},{"field":"expression","quote":"전체 바이오매스는 W=0.063D 2.578","locator":"결론 (Conclusion)"}],"check":[{"inputs":{"D":10},"expected":23.8419,"origin":"computed","note":"computed from the Table 10 coefficients"},{"inputs":{"D":25},"expected":253.0637,"origin":"computed","note":"computed from the Table 10 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"W = dry weight in kg (Table 7 in kg), D = DBH in cm. The paper prints no correction factor, so none is applied. Includes root. Total biomass includes roots (available for 21 trees); n and ranges for this equation are not printed, so they are omitted."},{"id":"kang-2016-total-pow-d2h","source":"kang-2016","name":"Liriodendron tulipifera Total W = a(D^2H)^b (Table 11)","output":{"quantity":"total_biomass"},"expression":"0.034 * (D^2 * H)^0.937","published":{"expression":"0.034 * (DBH^2 * H)^0.937","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D","H":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Liriodendron tulipifera","family":"Magnoliaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["KR"],"place":"Suwon (Gyeonggi), Jangseong and Gangjin (Jeollanam-do), South Korea","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.962,"method":"regression in SPSS 19.0 (power forms fitted on log-transformed data)"},"evidence":[{"field":"expression","quote":"Total 0.034 0.937 0.962","locator":"Table 11 (W=a(D^2H)^b)"}],"check":[{"inputs":{"D":15,"H":12},"expected":55.8042,"origin":"computed","note":"computed from the Table 11 coefficients"},{"inputs":{"D":30,"H":22},"expected":360.9559,"origin":"computed","note":"computed from the Table 11 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"W = dry weight in kg (Table 7 in kg), D = DBH in cm, H = tree height in m. The paper prints no correction factor, so none is applied. Includes root. Total biomass includes roots (available for 21 trees); n and ranges for this equation are not printed, so they are omitted."},{"id":"kang-2016-total-pow-dh","source":"kang-2016","name":"Liriodendron tulipifera Total W = aD^b H^c (Table 11)","output":{"quantity":"total_biomass"},"expression":"0.066 * D^2.626 * H^(-0.067)","published":{"expression":"0.066 * DBH^2.626 * H^(-0.067)","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D","H":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Liriodendron tulipifera","family":"Magnoliaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["KR"],"place":"Suwon (Gyeonggi), Jangseong and Gangjin (Jeollanam-do), South Korea","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.977,"method":"regression in SPSS 19.0 (power forms fitted on log-transformed data)"},"evidence":[{"field":"expression","quote":"Total 0.066 2.626 -0.067 0.977","locator":"Table 11 (W=aD^bH^c)"}],"check":[{"inputs":{"D":15,"H":12},"expected":68.4943,"origin":"computed","note":"computed from the Table 11 coefficients"},{"inputs":{"D":30,"H":22},"expected":405.9963,"origin":"computed","note":"computed from the Table 11 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"W = dry weight in kg (Table 7 in kg), D = DBH in cm, H = tree height in m. The paper prints no correction factor, so none is applied. Includes root. Total biomass includes roots (available for 21 trees); n and ranges for this equation are not printed, so they are omitted."},{"id":"kang-2016-total-quad-d","source":"kang-2016","name":"Liriodendron tulipifera Total W = aD + bD^2 (Table 10)","output":{"quantity":"total_biomass"},"expression":"-8.758 * D + 0.795 * D^2","published":{"expression":"-8.758 * DBH + 0.795 * DBH^2","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Liriodendron tulipifera","family":"Magnoliaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["KR"],"place":"Suwon (Gyeonggi), Jangseong and Gangjin (Jeollanam-do), South Korea","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.978,"method":"regression in SPSS 19.0"},"evidence":[{"field":"expression","quote":"Total -8.758 0.795 0.978","locator":"Table 10 (W=aD+bD^2)"}],"check":[{"inputs":{"D":15},"expected":47.505,"origin":"computed","note":"computed from the Table 10 coefficients"},{"inputs":{"D":30},"expected":452.76,"origin":"computed","note":"computed from the Table 10 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"W = dry weight in kg (Table 7 in kg), D = DBH in cm. The paper prints no correction factor, so none is applied. Includes root. Predicts negative biomass below about 12 cm DBH (authors' remark), so the authors prefer the power form. Total biomass includes roots (available for 21 trees); n and ranges for this equation are not printed, so they are omitted."},{"id":"karaban-2023-agb-d-pooled","source":"karaban-2023","name":"Gray alder, European Russia pooled: aboveground biomass from D (Eq. 5)","output":{"quantity":"agb"},"expression":"exp(-2.5395 + 2.4527 * ln(D))","published":{"expression":"exp(-2.5395 + 2.4527 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Alnus incana","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["RU"],"place":"European Russia: northern taiga (Arkhangelsk) plus southern taiga and coniferous-broadleaved subzones","biomes":["boreal","temperate"]},"stand":"mixed","fit":{"rse":0.26,"method":"OLS regression on natural logarithms of the pooled northern and southern data"},"evidence":[{"field":"expression","quote":"ln Pa = –2,5395 + 2,4527 ln D; adjR2 = 0,939, SE = 0,26.","locator":"Eq. (5), p. 46"}],"check":[{"inputs":{"D":5},"expected":4.0876,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":10},"expected":22.3774,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":15},"expected":60.4934,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Generalised model recommended by the authors for aboveground biomass of gray alder in European Russia, combining the new northern taiga data with southern data (Smirnov 1971; Kazimirov et al. 1978; Miezite et al. 2011). Sample size and DBH range of the pooled set are not printed. Natural log; no separate correction factor stated. Reports adjusted R2 = 0.939."},{"id":"karaban-2023-agb-d","source":"karaban-2023","name":"Gray alder, Arkhangelsk: aboveground biomass from D (Table 2)","output":{"quantity":"agb"},"expression":"exp(-2.5641 + 2.4652 * ln(D))","published":{"expression":"exp(-2.5641 + 2.4652 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Alnus incana","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["RU"],"place":"Arkhangelsk region, northern taiga (Primorsky, Krasnoborsky and Kargopolsky districts)","biomes":["boreal"]},"stand":"mixed","fit":{"n_trees":50,"dbh_min_cm":3.6,"dbh_max_cm":16.9,"rse":0.31,"method":"OLS regression on natural logarithms; free term corrected for log transformation (Baskerville 1972)"},"evidence":[{"field":"expression","quote":"ln Pa (1) –2,5641 2,4652 – – 0,867 0,310 (ln Pi = a0 + a1 ln D)","locator":"Table 2, ln Pa row"},{"field":"fit.n_trees","quote":"Полная характеристика полученных данных о 50 модельных деревьях ольхи серой дана в табл. 1.","locator":"Methods, p. 44"},{"field":"fit.dbh_min_cm","quote":"25 20 3,6 5,10 12,22 6,48 0,004 0,001 2,596 0,121 0,230 0,049 2,875 4,250","locator":"Table 1, tree No. 25 (smallest D, 3.6 cm); largest D is tree No. 15, 16.9 cm"}],"check":[{"inputs":{"D":5},"expected":4.0694,"origin":"computed","note":"computed from the published form (coefficients as printed; free term already includes the Baskerville log correction per the Table 2 note)"},{"inputs":{"D":10},"expected":22.4712,"origin":"computed","note":"computed from the published form (coefficients as printed; free term already includes the Baskerville log correction per the Table 2 note)"},{"inputs":{"D":15},"expected":61.0556,"origin":"computed","note":"computed from the published form (coefficients as printed; free term already includes the Baskerville log correction per the Table 2 note)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"The note to Table 2 says the free term includes the correction for logarithmic transformation (Baskerville 1972), so no separate factor is applied. Natural log (ln) as printed. The paper reports adjusted R2 (not R2); adjR2 = 0.867. Stand origin not stated (pure stands or with admixture of other species). DBH range is the min and max of column D in Table 1 over the 50 trees."},{"id":"karaban-2023-bgb-d-agb","source":"karaban-2023","name":"Gray alder, southern taiga and mixed-forest data (Kazimirov 1978, Miezīte 2011): root biomass from D and aboveground biomass (Table 2)","output":{"quantity":"bgb"},"expression":"exp(2.1294 + -3.5935 * ln(D) + 2.4672 * ln(AGB))","published":{"expression":"exp(2.1294 + -3.5935 * ln(D) + 2.4672 * ln(Pa))","units":{"D":"cm","Pa":"kg"},"variables":{"Pa":"AGB"},"output_unit":"kg"},"taxon":{"level":"species","name":"Alnus incana","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["RU","LV"],"place":"Southern taiga and coniferous-broadleaved subzones of European Russia and Latvia (root data of Kazimirov et al. 1978 and Miezīte et al. 2011), not the Arkhangelsk sample","biomes":["boreal","temperate"]},"stand":"mixed","fit":{"n_trees":17,"rse":0.265,"method":"OLS regression on natural logarithms; free term corrected for log transformation (Baskerville 1972)"},"evidence":[{"field":"expression","quote":"ln Pr (3) 2,1294 –3,5935 2,4672 – 0,945 0,265 17 (ln Pr = a0 + a1 ln D + a3 ln Pa)","locator":"Table 2, ln Pr row, eq. (3)"},{"field":"fit.n_trees","quote":"17 определений","locator":"Results, p. 46 (root data from Kazimirov et al. 1978 and Miezite et al. 2011, southern taiga and mixed forest subzones)"}],"check":[{"inputs":{"D":5,"AGB":5},"expected":1.3726,"origin":"computed","note":"computed from the published form (coefficients as printed; free term already includes the Baskerville log correction per the Table 2 note)"},{"inputs":{"D":10,"AGB":20},"expected":3.4769,"origin":"computed","note":"computed from the published form (coefficients as printed; free term already includes the Baskerville log correction per the Table 2 note)"},{"inputs":{"D":15,"AGB":45},"expected":5.9884,"origin":"computed","note":"computed from the published form (coefficients as printed; free term already includes the Baskerville log correction per the Table 2 note)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Root biomass was not measured by the authors: fitted on 17 observations for gray alder from the southern taiga and coniferous-broadleaved subzones (Kazimirov et al. 1978; Miezite et al. 2011), not on the Arkhangelsk trees. Inputs: D in cm and aboveground biomass Pa in kg (Pa = AGB). adjR2 = 0.945. Natural log as printed; Baskerville correction already in the free term."},{"id":"karaban-2023-branch-d","source":"karaban-2023","name":"Gray alder, Arkhangelsk: branch biomass from D (Table 2)","output":{"quantity":"branch_biomass"},"expression":"exp(-4.4668 + 2.4038 * ln(D))","published":{"expression":"exp(-4.4668 + 2.4038 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Alnus incana","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["RU"],"place":"Arkhangelsk region, northern taiga (Primorsky, Krasnoborsky and Kargopolsky districts)","biomes":["boreal"]},"stand":"mixed","fit":{"n_trees":50,"dbh_min_cm":3.6,"dbh_max_cm":16.9,"rse":0.469,"method":"OLS regression on natural logarithms; free term corrected for log transformation (Baskerville 1972)"},"evidence":[{"field":"expression","quote":"ln Pb (1) –4,4668 2,4038 – – 0,729 0,469 50 (ln Pi = a0 + a1 ln D)","locator":"Table 2, ln Pb row"},{"field":"fit.n_trees","quote":"Полная характеристика полученных данных о 50 модельных деревьях ольхи серой дана в табл. 1.","locator":"Methods, p. 44"},{"field":"fit.dbh_min_cm","quote":"25 20 3,6 5,10 12,22 6,48 0,004 0,001 2,596 0,121 0,230 0,049 2,875 4,250","locator":"Table 1, tree No. 25 (smallest D, 3.6 cm); largest D is tree No. 15, 16.9 cm"}],"check":[{"inputs":{"D":5},"expected":0.5499,"origin":"computed","note":"computed from the published form (coefficients as printed; free term already includes the Baskerville log correction per the Table 2 note)"},{"inputs":{"D":10},"expected":2.91,"origin":"computed","note":"computed from the published form (coefficients as printed; free term already includes the Baskerville log correction per the Table 2 note)"},{"inputs":{"D":15},"expected":7.7123,"origin":"computed","note":"computed from the published form (coefficients as printed; free term already includes the Baskerville log correction per the Table 2 note)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"The note to Table 2 says the free term includes the correction for logarithmic transformation (Baskerville 1972), so no separate factor is applied. Natural log (ln) as printed. The paper reports adjusted R2 (not R2); adjR2 = 0.729. Stand origin not stated (pure stands or with admixture of other species). DBH range is the min and max of column D in Table 1 over the 50 trees."},{"id":"karaban-2023-foliage-d","source":"karaban-2023","name":"Gray alder, Arkhangelsk: foliage biomass from D (Table 2)","output":{"quantity":"foliage_biomass"},"expression":"exp(-5.2476 + 1.991 * ln(D))","published":{"expression":"exp(-5.2476 + 1.991 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Alnus incana","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["RU"],"place":"Arkhangelsk region, northern taiga (Primorsky, Krasnoborsky and Kargopolsky districts)","biomes":["boreal"]},"stand":"mixed","fit":{"n_trees":50,"dbh_min_cm":3.6,"dbh_max_cm":16.9,"rse":0.478,"method":"OLS regression on natural logarithms; free term corrected for log transformation (Baskerville 1972)"},"evidence":[{"field":"expression","quote":"ln Pf (1) –5,2476 1,9910 – – 0,639 0,478 (ln Pi = a0 + a1 ln D)","locator":"Table 2, ln Pf row"},{"field":"fit.n_trees","quote":"Полная характеристика полученных данных о 50 модельных деревьях ольхи серой дана в табл. 1.","locator":"Methods, p. 44"},{"field":"fit.dbh_min_cm","quote":"25 20 3,6 5,10 12,22 6,48 0,004 0,001 2,596 0,121 0,230 0,049 2,875 4,250","locator":"Table 1, tree No. 25 (smallest D, 3.6 cm); largest D is tree No. 15, 16.9 cm"}],"check":[{"inputs":{"D":5},"expected":0.1296,"origin":"computed","note":"computed from the published form (coefficients as printed; free term already includes the Baskerville log correction per the Table 2 note)"},{"inputs":{"D":10},"expected":0.5152,"origin":"computed","note":"computed from the published form (coefficients as printed; free term already includes the Baskerville log correction per the Table 2 note)"},{"inputs":{"D":15},"expected":1.155,"origin":"computed","note":"computed from the published form (coefficients as printed; free term already includes the Baskerville log correction per the Table 2 note)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"The note to Table 2 says the free term includes the correction for logarithmic transformation (Baskerville 1972), so no separate factor is applied. Natural log (ln) as printed. The paper reports adjusted R2 (not R2); adjR2 = 0.639. Stand origin not stated (pure stands or with admixture of other species). DBH range is the min and max of column D in Table 1 over the 50 trees."},{"id":"karaban-2023-stem-d","source":"karaban-2023","name":"Gray alder, Arkhangelsk: stem biomass (in bark) from D (Table 2)","output":{"quantity":"stem_biomass"},"expression":"exp(-2.8211 + 2.5081 * ln(D))","published":{"expression":"exp(-2.8211 + 2.5081 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Alnus incana","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["RU"],"place":"Arkhangelsk region, northern taiga (Primorsky, Krasnoborsky and Kargopolsky districts)","biomes":["boreal"]},"stand":"mixed","fit":{"n_trees":50,"dbh_min_cm":3.6,"dbh_max_cm":16.9,"rse":0.357,"method":"OLS regression on natural logarithms; free term corrected for log transformation (Baskerville 1972)"},"evidence":[{"field":"expression","quote":"ln Ps (1) –2,8211 2,5081 – – 0,835 0,357 (ln Pi = a0 + a1 ln D)","locator":"Table 2, ln Ps row"},{"field":"fit.n_trees","quote":"Полная характеристика полученных данных о 50 модельных деревьях ольхи серой дана в табл. 1.","locator":"Methods, p. 44"},{"field":"fit.dbh_min_cm","quote":"25 20 3,6 5,10 12,22 6,48 0,004 0,001 2,596 0,121 0,230 0,049 2,875 4,250","locator":"Table 1, tree No. 25 (smallest D, 3.6 cm); largest D is tree No. 15, 16.9 cm"}],"check":[{"inputs":{"D":5},"expected":3.3721,"origin":"computed","note":"computed from the published form (coefficients as printed; free term already includes the Baskerville log correction per the Table 2 note)"},{"inputs":{"D":10},"expected":19.1828,"origin":"computed","note":"computed from the published form (coefficients as printed; free term already includes the Baskerville log correction per the Table 2 note)"},{"inputs":{"D":15},"expected":53.0355,"origin":"computed","note":"computed from the published form (coefficients as printed; free term already includes the Baskerville log correction per the Table 2 note)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"The note to Table 2 says the free term includes the correction for logarithmic transformation (Baskerville 1972), so no separate factor is applied. Natural log (ln) as printed. The paper reports adjusted R2 (not R2); adjR2 = 0.835. Stand origin not stated (pure stands or with admixture of other species). DBH range is the min and max of column D in Table 1 over the 50 trees. Ps is stem biomass in bark."},{"id":"kartashova-2026-acer-campestre-pag-h","source":"kartashova-2026","name":"Acer campestre, aboveground dry mass vs height (Model 2)","output":{"quantity":"agb"},"expression":"1.84 * exp(-3.195 + 1.174 * ln(H))","published":{"expression":"1.84 * exp(-3.195 + 1.174 * ln(H))","units":{"H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Acer campestre","family":"Sapindaceae","group":"broadleaf"},"region":{"scope":"site","countries":["RU"],"place":"Prigorodnoye Forestry, Levoberezhnoe District Forestry, Voronezh Oblast (pine stands, forest-steppe)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":11,"h_min_m":0.1,"h_max_m":3,"r2":0.558,"cf":1.84,"method":"log-log regression (OLS on natural logs), Baskerville correction factor"},"evidence":[{"field":"expression","quote":"lnPag = a0 + a1lnH; Acer campestre: a0 = -3,195, a1 = 1,174, BaskCF = 1,84","locator":"Eq. (1)/(2) and Table 2 (p. 10-11)"},{"field":"fit.n_trees","quote":"Acer campestre n = 11","locator":"Table 1, p. 9"}],"check":[{"inputs":{"H":0.5},"expected":0.033407,"origin":"computed","note":"hand-computed from the published form (Table 2 coefficients, Baskerville factor BaskCF applied)"},{"inputs":{"H":1.5},"expected":0.121333,"origin":"computed","note":"hand-computed from the published form (Table 2 coefficients, Baskerville factor BaskCF applied)"},{"inputs":{"H":2.5},"expected":0.221018,"origin":"computed","note":"hand-computed from the published form (Table 2 coefficients, Baskerville factor BaskCF applied)"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Understory plant (small tree/shrub) under Scots pine. Output in kg: the text states kg for P; Table 1 headings say g, but the kg reading matches Table 1 ranges. Predictor is plant height H in m. Selected as the significant (p<0.05) model with the best fit among 18 species x fraction x predictor models; many others are not significant and were omitted."},{"id":"kartashova-2026-euonymus-verrucosus-pbg-h","source":"kartashova-2026","name":"Euonymus verrucosus, belowground dry mass vs height (Model 2)","output":{"quantity":"bgb"},"expression":"1.48 * exp(-4.119 + 1.409 * ln(H))","published":{"expression":"1.48 * exp(-4.119 + 1.409 * ln(H))","units":{"H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Euonymus verrucosus","family":"Celastraceae","group":"shrub"},"region":{"scope":"site","countries":["RU"],"place":"Prigorodnoye Forestry, Levoberezhnoe District Forestry, Voronezh Oblast (pine stands, forest-steppe)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":16,"h_min_m":0.3,"h_max_m":1.7,"r2":0.318,"cf":1.48,"method":"log-log regression (OLS on natural logs), Baskerville correction factor"},"evidence":[{"field":"expression","quote":"lnPbg = a0 + a1lnH; Euonymus verrucosus: a0 = -4,119, a1 = 1,409, BaskCF = 1,48","locator":"Eq. (1)/(2) and Table 2 (p. 10-11)"},{"field":"fit.n_trees","quote":"Euonymus verrucosus n = 16","locator":"Table 1, p. 9"}],"check":[{"inputs":{"H":0.5},"expected":0.00906257,"origin":"computed","note":"hand-computed from the published form (Table 2 coefficients, Baskerville factor BaskCF applied)"},{"inputs":{"H":1},"expected":0.0240659,"origin":"computed","note":"hand-computed from the published form (Table 2 coefficients, Baskerville factor BaskCF applied)"},{"inputs":{"H":1.5},"expected":0.0426104,"origin":"computed","note":"hand-computed from the published form (Table 2 coefficients, Baskerville factor BaskCF applied)"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Understory plant (small tree/shrub) under Scots pine. Output in kg: the text states kg for P; Table 1 headings say g, but the kg reading matches Table 1 ranges. Predictor is plant height H in m. Selected as the significant (p<0.05) model with the best fit among 18 species x fraction x predictor models; many others are not significant and were omitted."},{"id":"kartashova-2026-rubus-idaeus-pag-d0","source":"kartashova-2026","name":"Rubus idaeus, aboveground dry mass vs base diameter (Model 1)","output":{"quantity":"agb"},"expression":"1.24 * exp(-3.937 + 0.979 * ln(DRC))","published":{"expression":"1.24 * exp(-3.937 + 0.979 * ln(D0))","units":{"D0":"cm"},"variables":{"D0":"DRC"},"output_unit":"kg"},"taxon":{"level":"species","name":"Rubus idaeus","family":"Rosaceae","group":"shrub"},"region":{"scope":"site","countries":["RU"],"place":"Prigorodnoye Forestry, Levoberezhnoe District Forestry, Voronezh Oblast (pine stands, forest-steppe)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":12,"r2":0.372,"cf":1.24,"method":"log-log regression (OLS on natural logs), Baskerville correction factor"},"evidence":[{"field":"expression","quote":"lnPag = a0 + a1lnD0; Rubus idaeus: a0 = -3,937, a1 = 0,979, BaskCF = 1,24","locator":"Eq. (1)/(2) and Table 2 (p. 10-11)"},{"field":"fit.n_trees","quote":"Rubus idaeus n = 12","locator":"Table 1, p. 9"}],"check":[{"inputs":{"DRC":0.4},"expected":0.00986327,"origin":"computed","note":"hand-computed from the published form (Table 2 coefficients, Baskerville factor BaskCF applied)"},{"inputs":{"DRC":0.8},"expected":0.0194415,"origin":"computed","note":"hand-computed from the published form (Table 2 coefficients, Baskerville factor BaskCF applied)"},{"inputs":{"DRC":1.2},"expected":0.028915,"origin":"computed","note":"hand-computed from the published form (Table 2 coefficients, Baskerville factor BaskCF applied)"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Understory plant (small tree/shrub) under Scots pine. Output in kg: the text states kg for P; Table 1 headings say g, but the kg reading matches the ranges in Table 1 (e.g. Sambucus Pag max 943 g = 0.943 kg). Predictor is base diameter D0 (root collar), mapped to canonical DRC."},{"id":"kartashova-2026-sambucus-pag-d0","source":"kartashova-2026","name":"Sambucus racemosa, aboveground dry mass vs base diameter (Model 1)","output":{"quantity":"agb"},"expression":"1.62 * exp(-2.559 + 4.186 * ln(DRC))","published":{"expression":"1.62 * exp(-2.559 + 4.186 * ln(D0))","units":{"D0":"cm"},"variables":{"D0":"DRC"},"output_unit":"kg"},"taxon":{"level":"species","name":"Sambucus racemosa","family":"Sambucaceae","group":"shrub"},"region":{"scope":"site","countries":["RU"],"place":"Prigorodnoye Forestry, Levoberezhnoe District Forestry, Voronezh Oblast (pine stands, forest-steppe)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":7,"r2":0.903,"cf":1.62,"method":"log-log regression (OLS on natural logs), Baskerville correction factor"},"evidence":[{"field":"expression","quote":"lnPag = a0 + a1lnD0; Sambucus racemosa: a0 = -2,559, a1 = 4,186, BaskCF = 1,62","locator":"Eq. (1)/(2) and Table 2 (p. 10-11)"},{"field":"fit.n_trees","quote":"Sambucus racemosa n = 7","locator":"Table 1, p. 9"}],"check":[{"inputs":{"DRC":0.5},"expected":0.00688722,"origin":"computed","note":"hand-computed from the published form (Table 2 coefficients, Baskerville factor BaskCF applied)"},{"inputs":{"DRC":1},"expected":0.125359,"origin":"computed","note":"hand-computed from the published form (Table 2 coefficients, Baskerville factor BaskCF applied)"},{"inputs":{"DRC":1.5},"expected":0.684342,"origin":"computed","note":"hand-computed from the published form (Table 2 coefficients, Baskerville factor BaskCF applied)"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Understory plant (small tree/shrub) under Scots pine. Output in kg: the text states kg for P; Table 1 headings say g, but the kg reading matches the ranges in Table 1 (e.g. Sambucus Pag max 943 g = 0.943 kg). Predictor is base diameter D0 (root collar), mapped to canonical DRC. n=7 (<10): authors treat as preliminary. Best-supported species in the paper (Q2CV 0.53-0.86)."},{"id":"kartashova-2026-sambucus-pbg-d0","source":"kartashova-2026","name":"Sambucus racemosa, belowground dry mass vs base diameter (Model 1)","output":{"quantity":"bgb"},"expression":"2.32 * exp(-3.075 + 3.786 * ln(DRC))","published":{"expression":"2.32 * exp(-3.075 + 3.786 * ln(D0))","units":{"D0":"cm"},"variables":{"D0":"DRC"},"output_unit":"kg"},"taxon":{"level":"species","name":"Sambucus racemosa","family":"Sambucaceae","group":"shrub"},"region":{"scope":"site","countries":["RU"],"place":"Prigorodnoye Forestry, Levoberezhnoe District Forestry, Voronezh Oblast (pine stands, forest-steppe)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":7,"r2":0.814,"cf":2.32,"method":"log-log regression (OLS on natural logs), Baskerville correction factor"},"evidence":[{"field":"expression","quote":"lnPbg = a0 + a1lnD0; Sambucus racemosa: a0 = -3,075, a1 = 3,786, BaskCF = 2,32","locator":"Eq. (1)/(2) and Table 2 (p. 10-11)"},{"field":"fit.n_trees","quote":"Sambucus racemosa n = 7","locator":"Table 1, p. 9"}],"check":[{"inputs":{"DRC":0.5},"expected":0.00776842,"origin":"computed","note":"hand-computed from the published form (Table 2 coefficients, Baskerville factor BaskCF applied)"},{"inputs":{"DRC":1},"expected":0.10716,"origin":"computed","note":"hand-computed from the published form (Table 2 coefficients, Baskerville factor BaskCF applied)"},{"inputs":{"DRC":1.5},"expected":0.497409,"origin":"computed","note":"hand-computed from the published form (Table 2 coefficients, Baskerville factor BaskCF applied)"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Understory plant (small tree/shrub) under Scots pine. Output in kg: the text states kg for P; Table 1 headings say g, but the kg reading matches the ranges in Table 1 (e.g. Sambucus Pag max 943 g = 0.943 kg). Predictor is base diameter D0 (root collar), mapped to canonical DRC. n=7 (<10): authors treat as preliminary. Best-supported species in the paper (Q2CV 0.53-0.86)."},{"id":"kaushal-2022-balcooa-hd","source":"kaushal-2022","name":"B. balcooa culm height from diameter at breast height (H-D model, Table 9)","output":{"quantity":"height"},"expression":"1.28 * D^1.17","published":{"expression":"1.28 * D^1.17","units":{"D":"cm"},"output_unit":"m"},"taxon":{"level":"species","name":"Bambusa balcooa","family":"Poaceae","group":"bamboo"},"region":{"scope":"regional","countries":["IN"],"place":"Western Himalayan foothills, Uttarakhand (Dehradun and Pantnagar)","biomes":["subtropical"]},"stand":"plantation","fit":{"method":"Weighted maximum-likelihood nonlinear power model H = aD^b (nlme), fitted on 80% of the data"},"evidence":[{"field":"expression","quote":"Allometric equation of the form H = aDb + e, was used to develop the relationship between height (H) with the diameter at breast height","locator":"Methods, H-D relationship"},{"field":"expression","quote":"B. balcooa 1/D0.91 1.28 ± 0.19 1.17 ± 0.09 0.70","locator":"Table 9 (Weight variable, a, b, Adj.R2)"},{"field":"published.units","quote":"Culm diameter (cm) Culm height (m)","locator":"Table 3 headings"}],"check":[{"inputs":{"D":6},"expected":10.414704,"origin":"computed","note":"computed from the Table 9 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Culm-level height model for a bamboo, intended by the authors to fill missing culm heights. D is culm diameter at breast height (cm), H culm height (m); units taken from Table 3 headings, not restated beside the equation. Fitted on 80% of the sample, so n is not stored; Adj. R² is printed but not stored. The paper's biomass models (Tables 5 and 7) predict fresh weight, not dry biomass, and were not added."},{"id":"kaushal-2022-bambos-hd","source":"kaushal-2022","name":"B. bambos culm height from diameter at breast height (H-D model, Table 9)","output":{"quantity":"height"},"expression":"1.29 * D^1.11","published":{"expression":"1.29 * D^1.11","units":{"D":"cm"},"output_unit":"m"},"taxon":{"level":"species","name":"Bambusa bambos","family":"Poaceae","group":"bamboo"},"region":{"scope":"regional","countries":["IN"],"place":"Western Himalayan foothills, Uttarakhand (Dehradun and Pantnagar)","biomes":["subtropical"]},"stand":"plantation","fit":{"method":"Weighted maximum-likelihood nonlinear power model H = aD^b (nlme), fitted on 80% of the data"},"evidence":[{"field":"expression","quote":"Allometric equation of the form H = aDb + e, was used to develop the relationship between height (H) with the diameter at breast height","locator":"Methods, H-D relationship"},{"field":"expression","quote":"B. bambos 1/D0.45 1.29 ± 0.15 1.11 ± 0.06 0.89","locator":"Table 9 (Weight variable, a, b, Adj.R2)"},{"field":"published.units","quote":"Culm diameter (cm) Culm height (m)","locator":"Table 3 headings"}],"check":[{"inputs":{"D":6},"expected":9.426221,"origin":"computed","note":"computed from the Table 9 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Culm-level height model for a bamboo, intended by the authors to fill missing culm heights. D is culm diameter at breast height (cm), H culm height (m); units taken from Table 3 headings, not restated beside the equation. Fitted on 80% of the sample, so n is not stored; Adj. R² is printed but not stored. The paper's biomass models (Tables 5 and 7) predict fresh weight, not dry biomass, and were not added."},{"id":"kaushal-2022-hamiltonii-hd","source":"kaushal-2022","name":"D. hamiltonii culm height from diameter at breast height (H-D model, Table 9)","output":{"quantity":"height"},"expression":"2.3 * D^0.92","published":{"expression":"2.3 * D^0.92","units":{"D":"cm"},"output_unit":"m"},"taxon":{"level":"species","name":"Dendrocalamus hamiltonii","family":"Poaceae","group":"bamboo"},"region":{"scope":"regional","countries":["IN"],"place":"Western Himalayan foothills, Uttarakhand (Dehradun and Pantnagar)","biomes":["subtropical"]},"stand":"plantation","fit":{"method":"Weighted maximum-likelihood nonlinear power model H = aD^b (nlme), fitted on 80% of the data"},"evidence":[{"field":"expression","quote":"Allometric equation of the form H = aDb + e, was used to develop the relationship between height (H) with the diameter at breast height","locator":"Methods, H-D relationship"},{"field":"expression","quote":"D. hamiltonii 1/D0.38 2.30 ± 0.30 0.92 ± 0.06 0.70","locator":"Table 9 (Weight variable, a, b, Adj.R2)"},{"field":"published.units","quote":"Culm diameter (cm) Culm height (m)","locator":"Table 3 headings"}],"check":[{"inputs":{"D":6},"expected":11.957131,"origin":"computed","note":"computed from the Table 9 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Culm-level height model for a bamboo, intended by the authors to fill missing culm heights. D is culm diameter at breast height (cm), H culm height (m); units taken from Table 3 headings, not restated beside the equation. Fitted on 80% of the sample, so n is not stored; Adj. R² is printed but not stored. The paper's biomass models (Tables 5 and 7) predict fresh weight, not dry biomass, and were not added."},{"id":"kaushal-2022-nutans-hd","source":"kaushal-2022","name":"B. nutans culm height from diameter at breast height (H-D model, Table 9)","output":{"quantity":"height"},"expression":"2.58 * D^0.89","published":{"expression":"2.58 * D^0.89","units":{"D":"cm"},"output_unit":"m"},"taxon":{"level":"species","name":"Bambusa nutans","family":"Poaceae","group":"bamboo"},"region":{"scope":"regional","countries":["IN"],"place":"Western Himalayan foothills, Uttarakhand (Dehradun and Pantnagar)","biomes":["subtropical"]},"stand":"plantation","fit":{"method":"Weighted maximum-likelihood nonlinear power model H = aD^b (nlme), fitted on 80% of the data"},"evidence":[{"field":"expression","quote":"Allometric equation of the form H = aDb + e, was used to develop the relationship between height (H) with the diameter at breast height","locator":"Methods, H-D relationship"},{"field":"expression","quote":"B. nutans 1/D1.07 2.58 ± 0.37 0.89 ± 0.09 0.69","locator":"Table 9 (Weight variable, a, b, Adj.R2)"},{"field":"published.units","quote":"Culm diameter (cm) Culm height (m)","locator":"Table 3 headings"}],"check":[{"inputs":{"D":6},"expected":12.710842,"origin":"computed","note":"computed from the Table 9 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Culm-level height model for a bamboo, intended by the authors to fill missing culm heights. D is culm diameter at breast height (cm), H culm height (m); units taken from Table 3 headings, not restated beside the equation. Fitted on 80% of the sample, so n is not stored; Adj. R² is printed but not stored. The paper's biomass models (Tables 5 and 7) predict fresh weight, not dry biomass, and were not added."},{"id":"kaushal-2022-stocksii-hd","source":"kaushal-2022","name":"D. stocksii culm height from diameter at breast height (H-D model, Table 9)","output":{"quantity":"height"},"expression":"1.55 * D^1.18","published":{"expression":"1.55 * D^1.18","units":{"D":"cm"},"output_unit":"m"},"taxon":{"level":"species","name":"Dendrocalamus stocksii","family":"Poaceae","group":"bamboo"},"region":{"scope":"regional","countries":["IN"],"place":"Western Himalayan foothills, Uttarakhand (Dehradun and Pantnagar)","biomes":["subtropical"]},"stand":"plantation","fit":{"method":"Weighted maximum-likelihood nonlinear power model H = aD^b (nlme), fitted on 80% of the data"},"evidence":[{"field":"expression","quote":"Allometric equation of the form H = aDb + e, was used to develop the relationship between height (H) with the diameter at breast height","locator":"Methods, H-D relationship"},{"field":"expression","quote":"D. stocksii 1/D0.41 1.55 ± 0.21 1.18 ± 0.09 0.76","locator":"Table 9 (Weight variable, a, b, Adj.R2)"},{"field":"published.units","quote":"Culm diameter (cm) Culm height (m)","locator":"Table 3 headings"}],"check":[{"inputs":{"D":6},"expected":12.839561,"origin":"computed","note":"computed from the Table 9 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Culm-level height model for a bamboo, intended by the authors to fill missing culm heights. D is culm diameter at breast height (cm), H culm height (m); units taken from Table 3 headings, not restated beside the equation. Fitted on 80% of the sample, so n is not stored; Adj. R² is printed but not stored. The paper's biomass models (Tables 5 and 7) predict fresh weight, not dry biomass, and were not added."},{"id":"kaushal-2022-strictus-hd","source":"kaushal-2022","name":"D. strictus culm height from diameter at breast height (H-D model, Table 9)","output":{"quantity":"height"},"expression":"1.73 * D^0.96","published":{"expression":"1.73 * D^0.96","units":{"D":"cm"},"output_unit":"m"},"taxon":{"level":"species","name":"Dendrocalamus strictus","family":"Poaceae","group":"bamboo"},"region":{"scope":"regional","countries":["IN"],"place":"Western Himalayan foothills, Uttarakhand (Dehradun and Pantnagar)","biomes":["subtropical"]},"stand":"plantation","fit":{"method":"Weighted maximum-likelihood nonlinear power model H = aD^b (nlme), fitted on 80% of the data"},"evidence":[{"field":"expression","quote":"Allometric equation of the form H = aDb + e, was used to develop the relationship between height (H) with the diameter at breast height","locator":"Methods, H-D relationship"},{"field":"expression","quote":"D. strictus 1/D0.13 1.73 ± 0.10 0.96 ± 0.03 0.84","locator":"Table 9 (Weight variable, a, b, Adj.R2)"},{"field":"published.units","quote":"Culm diameter (cm) Culm height (m)","locator":"Table 3 headings"}],"check":[{"inputs":{"D":6},"expected":9.662095,"origin":"computed","note":"computed from the Table 9 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Culm-level height model for a bamboo, intended by the authors to fill missing culm heights. D is culm diameter at breast height (cm), H culm height (m); units taken from Table 3 headings, not restated beside the equation. Fitted on 80% of the sample, so n is not stored; Adj. R² is printed but not stored. The paper's biomass models (Tables 5 and 7) predict fresh weight, not dry biomass, and were not added."},{"id":"kaushal-2022-vulgaris-hd","source":"kaushal-2022","name":"B. vulgaris culm height from diameter at breast height (H-D model, Table 9)","output":{"quantity":"height"},"expression":"1.09 * D^1.24","published":{"expression":"1.09 * D^1.24","units":{"D":"cm"},"output_unit":"m"},"taxon":{"level":"species","name":"Bambusa vulgaris","family":"Poaceae","group":"bamboo"},"region":{"scope":"regional","countries":["IN"],"place":"Western Himalayan foothills, Uttarakhand (Dehradun and Pantnagar)","biomes":["subtropical"]},"stand":"plantation","fit":{"method":"Weighted maximum-likelihood nonlinear power model H = aD^b (nlme), fitted on 80% of the data"},"evidence":[{"field":"expression","quote":"Allometric equation of the form H = aDb + e, was used to develop the relationship between height (H) with the diameter at breast height","locator":"Methods, H-D relationship"},{"field":"expression","quote":"B. vulgaris 1/D1.057 1.09 ± 0.22 1.24 ± 0.11 0.71","locator":"Table 9 (Weight variable, a, b, Adj.R2)"},{"field":"published.units","quote":"Culm diameter (cm) Culm height (m)","locator":"Table 3 headings"}],"check":[{"inputs":{"D":6},"expected":10.053888,"origin":"computed","note":"computed from the Table 9 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Culm-level height model for a bamboo, intended by the authors to fill missing culm heights. D is culm diameter at breast height (cm), H culm height (m); units taken from Table 3 headings, not restated beside the equation. Fitted on 80% of the sample, so n is not stored; Adj. R² is printed but not stored. The paper's biomass models (Tables 5 and 7) predict fresh weight, not dry biomass, and were not added."},{"id":"khun-2008-v-d","source":"khun-2008","name":"Rubber (PR107) stem volume from D (Eq. 7)","output":{"quantity":"stem_volume"},"expression":"0.00024884 * D^2.2953","published":{"expression":"0.00024884 * D^2.2953","units":{"D":"cm"},"output_unit":"m3"},"taxon":{"level":"species","name":"Hevea brasiliensis (clone PR107)","family":"Euphorbiaceae","group":"broadleaf"},"region":{"scope":"site","countries":["KH"],"place":"Krek Rubber Plantation, Kompong Cham Province","biomes":["tropical"]},"stand":"plantation","fit":{"n_trees":60,"dbh_min_cm":20,"dbh_max_cm":62,"h_min_m":16.7,"h_max_m":47,"r2":0.9233,"method":"log-log linear regression (log10) of over-bark stem volume on D (and H), 60 felled trees, ages 36-46 years"},"evidence":[{"field":"expression","quote":"log V = -3.6041 + 2.2953 log D (R2 = 0.9233, N = 60), or V = 0.00024884 D^2.2953","locator":"Eqs. 6-7, p. 338"},{"field":"fit.r2","quote":"R2 = 0.9233, N = 60","locator":"Eq. 6, p. 338"},{"field":"fit.dbh_min_cm","quote":"The range of data is 20-62cm for DBH, 16.7-47.0m for total height, and 0.25 to 3.41m³ for stem volume.","locator":"Results and Discussion, Volume Equations, p. 338"}],"check":[{"inputs":{"D":30},"expected":0.6114,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":45},"expected":1.5507,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Volume is over-bark stem volume of 60 felled PR107 trees (1 m sections, Smalian). Logs are base 10: 10^-3.6041 = 0.00024884 and 10^-3.73563 = 0.00018381 as printed. R2 is of the log-log regression. Authors recommend it as applicable since DBH-only and DBH+H forms did not differ much. Ranges follow the text on p. 338; Table 1 (p. 337) prints per-stand minima/maxima whose overall span is DBH 26.0-62.0 cm and height 16.2-47.3 m, which does not match the text exactly."},{"id":"khun-2008-v-dh","source":"khun-2008","name":"Rubber (PR107) stem volume from D and H (Eq. 9, Schumacher-Hall)","output":{"quantity":"stem_volume"},"expression":"0.00018381 * D^2.23961 * H^0.15334","published":{"expression":"0.00018381 * D^2.23961 * H^0.15334","units":{"D":"cm","H":"m"},"output_unit":"m3"},"taxon":{"level":"species","name":"Hevea brasiliensis (clone PR107)","family":"Euphorbiaceae","group":"broadleaf"},"region":{"scope":"site","countries":["KH"],"place":"Krek Rubber Plantation, Kompong Cham Province","biomes":["tropical"]},"stand":"plantation","fit":{"n_trees":60,"dbh_min_cm":20,"dbh_max_cm":62,"h_min_m":16.7,"h_max_m":47,"r2":0.9245,"method":"log-log linear regression (log10) of over-bark stem volume on D (and H), 60 felled trees, ages 36-46 years"},"evidence":[{"field":"expression","quote":"log V = -3.73563 + 2.23961 log D + 0.15334 log H (R2 = 0.9245, N = 60), or V = 0.00018381 D^2.23961 H^0.15334","locator":"Eqs. 8-9, p. 338"},{"field":"fit.r2","quote":"R2 = 0.9245, N = 60","locator":"Eq. 8, p. 338"},{"field":"fit.dbh_min_cm","quote":"The range of data is 20-62cm for DBH, 16.7-47.0m for total height, and 0.25 to 3.41m³ for stem volume.","locator":"Results and Discussion, Volume Equations, p. 338"}],"check":[{"inputs":{"D":30,"H":28},"expected":0.6229,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":45,"H":32},"expected":1.5766,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Volume is over-bark stem volume of 60 felled PR107 trees (1 m sections, Smalian). Logs are base 10: 10^-3.6041 = 0.00024884 and 10^-3.73563 = 0.00018381 as printed. R2 is of the log-log regression. Ranges follow the text on p. 338; Table 1 (p. 337) prints per-stand minima/maxima whose overall span is DBH 26.0-62.0 cm and height 16.2-47.3 m, which does not match the text exactly."},{"id":"koala-2017-bgb-ba13-all-species","source":"koala-2017","name":"Root biomass from basal area at breast height, all four species","output":{"quantity":"bgb"},"expression":"1084.9 * (0.7853982 * (D/100)^2)^0.88","published":{"expression":"1084.9 * (0.7853982 * (DBH/100)^2)^0.88","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Four Sudanian savanna-woodland species (Anogeissus leiocarpa, Detarium microcarpum, Piliostigma thonningii, Vitellaria paradoxa)","group":"broadleaf"},"region":{"scope":"regional","countries":["BF"],"place":"Tiogo and Laba state forests, Burkina Faso (north Sudanian savanna-woodland)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":100,"dbh_min_cm":1.59,"dbh_max_cm":23.87,"r2":0.56,"method":"nonlinear regression, BGB = a × BA1.3^b"},"evidence":[{"field":"expression","quote":"BA1.3 1084.9 603.0 0.88 0.09 0.56 0.85 <0.0001","locator":"Table 2, BA1.3 row, All species, p. 7"},{"field":"expression","quote":"BGB = a × BA1.3b + ε","locator":"Eq. 4, p. 5"},{"field":"published.units","quote":"basal area (m2) at 1.3 m above ground level (BA1.3)","locator":"Table 2 caption, p. 7"},{"field":"fit.n_trees","quote":"All species 100 31.9±1.6 8 86 21.6±1.4 5 75","locator":"Table 1, p. 4 (N, then C0.2, C1.3 columns)"}],"check":[{"inputs":{"D":10},"expected":15.24,"origin":"computed","note":"computed from the published form with BA1.3 = pi*D^2/4 in m2"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Not one of the authors' best models (they recommend basal area at 0.2 m, BA0.2, which has no canonical diameter variable here, and BA×H terms); this is the breast-height-only fit from Table 2, included because it can be used with DBH. Paper input is basal area at 1.3 m in m2; here BA1.3 is computed from DBH as pi*D^2/4 (0.7853982*(D/100)^2) in both forms. Fit dbh range is the printed C1.3 min and max divided by pi (circumference at 1.3 m, Table 1). BGB is stump plus coarse roots (roots over 5 mm for the non-protected species) from excavation, oven-dry. Table 2 prints a and b to 1 or 2 decimals. No correction factor is stated. Only the BA1.3-only models are included: the paper's height columns are labelled cm while the coefficients only make sense with H in metres, so the BA×H and H models are left out. Generic model fitted across the four species. For forked trees the paper's C1.3 is the quadratic sum of stem circumferences (Eq. 1, p. 4), so D here is the equivalent diameter sqrt(ΣDi²)."},{"id":"koala-2017-bgb-ba13-anogeissus-leiocarpa","source":"koala-2017","name":"Root biomass from basal area at breast height, Anogeissus leiocarpa","output":{"quantity":"bgb"},"expression":"225.4 * (0.7853982 * (D/100)^2)^0.77","published":{"expression":"225.4 * (0.7853982 * (DBH/100)^2)^0.77","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Anogeissus leiocarpa","family":"Combretaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["BF"],"place":"Tiogo and Laba state forests, Burkina Faso (north Sudanian savanna-woodland)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":30,"dbh_min_cm":1.59,"dbh_max_cm":13.05,"r2":0.78,"method":"nonlinear regression, BGB = a × BA1.3^b"},"evidence":[{"field":"expression","quote":"BA1.3 225.4 125.7 0.77 0.09 0.78 0.44 <0.0001","locator":"Table 2, BA1.3 row, Anogeissus leiocarpa, p. 7"},{"field":"expression","quote":"BGB = a × BA1.3b + ε","locator":"Eq. 4, p. 5"},{"field":"published.units","quote":"basal area (m2) at 1.3 m above ground level (BA1.3)","locator":"Table 2 caption, p. 7"},{"field":"fit.n_trees","quote":"Anogeissus leiocarpa 30 27.5±2.7 8 61 18.1±1.8 5 41","locator":"Table 1, p. 4 (N, then C0.2, C1.3 columns)"}],"check":[{"inputs":{"D":10},"expected":5.4,"origin":"computed","note":"computed from the published form with BA1.3 = pi*D^2/4 in m2"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Not one of the authors' best models (they recommend basal area at 0.2 m, BA0.2, which has no canonical diameter variable here, and BA×H terms); this is the breast-height-only fit from Table 2, included because it can be used with DBH. Paper input is basal area at 1.3 m in m2; here BA1.3 is computed from DBH as pi*D^2/4 (0.7853982*(D/100)^2) in both forms. Fit dbh range is the printed C1.3 min and max divided by pi (circumference at 1.3 m, Table 1). BGB is stump plus coarse roots (roots over 5 mm for the non-protected species) from excavation, oven-dry. Table 2 prints a and b to 1 or 2 decimals. No correction factor is stated. Only the BA1.3-only models are included: the paper's height columns are labelled cm while the coefficients only make sense with H in metres, so the BA×H and H models are left out. For forked trees the paper's C1.3 is the quadratic sum of stem circumferences (Eq. 1, p. 4), so D here is the equivalent diameter sqrt(ΣDi²)."},{"id":"koala-2017-bgb-ba13-detarium-microcarpum","source":"koala-2017","name":"Root biomass from basal area at breast height, Detarium microcarpum","output":{"quantity":"bgb"},"expression":"628.7 * (0.7853982 * (D/100)^2)^0.68","published":{"expression":"628.7 * (0.7853982 * (DBH/100)^2)^0.68","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Detarium microcarpum","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["BF"],"place":"Tiogo and Laba state forests, Burkina Faso (north Sudanian savanna-woodland)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":30,"dbh_min_cm":2.23,"dbh_max_cm":23.87,"r2":0.52,"method":"nonlinear regression, BGB = a × BA1.3^b"},"evidence":[{"field":"expression","quote":"BA1.3 628.7 518.3 0.68 0.14 0.52 0.69 <0.0001","locator":"Table 2, BA1.3 row, Detarium microcarpum, p. 7"},{"field":"expression","quote":"BGB = a × BA1.3b + ε","locator":"Eq. 4, p. 5"},{"field":"published.units","quote":"basal area (m2) at 1.3 m above ground level (BA1.3)","locator":"Table 2 caption, p. 7"},{"field":"fit.n_trees","quote":"Detarium microcarpum 30 37.6±3.5 12 86 25.7±3.1 7 75","locator":"Table 1, p. 4 (N, then C0.2, C1.3 columns)"}],"check":[{"inputs":{"D":10},"expected":23.29,"origin":"computed","note":"computed from the published form with BA1.3 = pi*D^2/4 in m2"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Not one of the authors' best models (they recommend basal area at 0.2 m, BA0.2, which has no canonical diameter variable here, and BA×H terms); this is the breast-height-only fit from Table 2, included because it can be used with DBH. Paper input is basal area at 1.3 m in m2; here BA1.3 is computed from DBH as pi*D^2/4 (0.7853982*(D/100)^2) in both forms. Fit dbh range is the printed C1.3 min and max divided by pi (circumference at 1.3 m, Table 1). BGB is stump plus coarse roots (roots over 5 mm for the non-protected species) from excavation, oven-dry. Table 2 prints a and b to 1 or 2 decimals. No correction factor is stated. Only the BA1.3-only models are included: the paper's height columns are labelled cm while the coefficients only make sense with H in metres, so the BA×H and H models are left out. For forked trees the paper's C1.3 is the quadratic sum of stem circumferences (Eq. 1, p. 4), so D here is the equivalent diameter sqrt(ΣDi²)."},{"id":"koala-2017-bgb-ba13-piliostigma-thonningii","source":"koala-2017","name":"Root biomass from basal area at breast height, Piliostigma thonningii","output":{"quantity":"bgb"},"expression":"519.6 * (0.7853982 * (D/100)^2)^0.75","published":{"expression":"519.6 * (0.7853982 * (DBH/100)^2)^0.75","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Piliostigma thonningii","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["BF"],"place":"Tiogo and Laba state forests, Burkina Faso (north Sudanian savanna-woodland)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":30,"dbh_min_cm":1.91,"dbh_max_cm":9.55,"r2":0.58,"method":"nonlinear regression, BGB = a × BA1.3^b"},"evidence":[{"field":"expression","quote":"BA1.3 519.6 456.4 0.75 0.13 0.58 0.64 <0.0001","locator":"Table 2, BA1.3 row, Piliostigma thonningii, p. 7"},{"field":"expression","quote":"BGB = a × BA1.3b + ε","locator":"Eq. 4, p. 5"},{"field":"published.units","quote":"basal area (m2) at 1.3 m above ground level (BA1.3)","locator":"Table 2 caption, p. 7"},{"field":"fit.n_trees","quote":"Piliostigma thonningii 30 26.5±1.7 12 40 15.7±1.4 6 30","locator":"Table 1, p. 4 (N, then C0.2, C1.3 columns)"}],"check":[{"inputs":{"D":10},"expected":13.71,"origin":"computed","note":"computed from the published form with BA1.3 = pi*D^2/4 in m2"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Not one of the authors' best models (they recommend basal area at 0.2 m, BA0.2, which has no canonical diameter variable here, and BA×H terms); this is the breast-height-only fit from Table 2, included because it can be used with DBH. Paper input is basal area at 1.3 m in m2; here BA1.3 is computed from DBH as pi*D^2/4 (0.7853982*(D/100)^2) in both forms. Fit dbh range is the printed C1.3 min and max divided by pi (circumference at 1.3 m, Table 1). BGB is stump plus coarse roots (roots over 5 mm for the non-protected species) from excavation, oven-dry. Table 2 prints a and b to 1 or 2 decimals. No correction factor is stated. Only the BA1.3-only models are included: the paper's height columns are labelled cm while the coefficients only make sense with H in metres, so the BA×H and H models are left out. For forked trees the paper's C1.3 is the quadratic sum of stem circumferences (Eq. 1, p. 4), so D here is the equivalent diameter sqrt(ΣDi²)."},{"id":"koala-2017-bgb-ba13-vitellaria-paradoxa","source":"koala-2017","name":"Root biomass from basal area at breast height, Vitellaria paradoxa","output":{"quantity":"bgb"},"expression":"5759.0 * (0.7853982 * (D/100)^2)^1.15","published":{"expression":"5759.0 * (0.7853982 * (DBH/100)^2)^1.15","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Vitellaria paradoxa","family":"Sapotaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["BF"],"place":"Tiogo and Laba state forests, Burkina Faso (north Sudanian savanna-woodland)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":10,"dbh_min_cm":2.55,"dbh_max_cm":10.82,"r2":0.85,"method":"nonlinear regression, BGB = a × BA1.3^b"},"evidence":[{"field":"expression","quote":"BA1.3 5759.0 6001.4 1.15 0.17 0.85 0.58 <0.0001","locator":"Table 2, BA1.3 row, Vitellaria paradoxa, p. 7"},{"field":"expression","quote":"BGB = a × BA1.3b + ε","locator":"Eq. 4, p. 5"},{"field":"published.units","quote":"basal area (m2) at 1.3 m above ground level (BA1.3)","locator":"Table 2 caption, p. 7"},{"field":"fit.n_trees","quote":"Vitellaria paradoxa 10 29.0±9.1 14 40 19.5±8.5 8 34","locator":"Table 1, p. 4 (N, then C0.2, C1.3 columns)"}],"check":[{"inputs":{"D":10},"expected":21.86,"origin":"computed","note":"computed from the published form with BA1.3 = pi*D^2/4 in m2"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Not one of the authors' best models (they recommend basal area at 0.2 m, BA0.2, which has no canonical diameter variable here, and BA×H terms); this is the breast-height-only fit from Table 2, included because it can be used with DBH. Paper input is basal area at 1.3 m in m2; here BA1.3 is computed from DBH as pi*D^2/4 (0.7853982*(D/100)^2) in both forms. Fit dbh range is the printed C1.3 min and max divided by pi (circumference at 1.3 m, Table 1). BGB is stump plus coarse roots (roots over 5 mm for the non-protected species) from excavation, oven-dry. Table 2 prints a and b to 1 or 2 decimals. No correction factor is stated. Only the BA1.3-only models are included: the paper's height columns are labelled cm while the coefficients only make sense with H in metres, so the BA×H and H models are left out. For forked trees the paper's C1.3 is the quadratic sum of stem circumferences (Eq. 1, p. 4), so D here is the equivalent diameter sqrt(ΣDi²)."},{"id":"koirala-2017-h-log","source":"koirala-2017","name":"Teak height from D (H2, logarithmic)","output":{"quantity":"height"},"expression":"-5.2544 + 6.8603 * ln(D)","published":{"expression":"-5.2544 + 6.8603 * ln(dbh)","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"m"},"taxon":{"level":"species","name":"Tectona grandis","family":"Lamiaceae","group":"broadleaf"},"region":{"scope":"site","countries":["NP"],"place":"Sagarnath Forestry Development Project, Sarlahi district, central lowland Nepal","biomes":["tropical"]},"stand":"plantation","fit":{"n_trees":31,"dbh_min_cm":6.37,"dbh_max_cm":58.92,"h_min_m":5.7,"h_max_m":26.1,"r2":0.928,"method":"least squares on training set (31 of 44 felled trees)"},"evidence":[{"field":"expression","quote":"H = [− 5.2544 + (6.8603 × ln (dbh))]","locator":"Abstract; Table 5, model H2"},{"field":"fit.n_trees","quote":"31 (70 % of the data) were randomly selected to build the model","locator":"Section 2.2"},{"field":"fit.dbh_min_cm","quote":"dbh (cm) 6.37 58.92; H (m) 5.70 26.10","locator":"Table 3, training data set"}],"check":[{"inputs":{"D":10},"expected":10.542,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":30},"expected":18.0788,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":55},"expected":22.2371,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"H is total height excluding the 0.10 m stump. R2 0.928 (adj. 0.921), RMSE 1.46 printed in Table 5. Selected as best height-diameter model by the authors."},{"id":"koirala-2017-v-dbh-h","source":"koirala-2017","name":"Teak stem volume from D and H (V5, generic)","output":{"quantity":"stem_volume"},"expression":"0.3364 + 0.0685 * D - 0.0970 * H","published":{"expression":"0.3364 + 0.0685 * dbh - 0.0970 * H","units":{"dbh":"cm","H":"m"},"variables":{"dbh":"D"},"output_unit":"m3"},"taxon":{"level":"species","name":"Tectona grandis","family":"Lamiaceae","group":"broadleaf"},"region":{"scope":"site","countries":["NP"],"place":"Sagarnath Forestry Development Project, Sarlahi district, central lowland Nepal","biomes":["tropical"]},"stand":"plantation","fit":{"n_trees":31,"dbh_min_cm":6.37,"dbh_max_cm":58.92,"h_min_m":5.7,"h_max_m":26.1,"r2":0.988,"method":"least squares on training set (31 of 44 felled trees)"},"evidence":[{"field":"expression","quote":"V = [0.3364 + (0.0685 × dbh) + (−0.097 × H)]","locator":"Abstract; Table 7, model V5"},{"field":"fit.n_trees","quote":"31 (70 % of the data) were randomly selected to build the model","locator":"Section 2.2"}],"check":[{"inputs":{"D":20,"H":12},"expected":0.5424,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":35,"H":19},"expected":0.8909,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":55,"H":24},"expected":1.7759,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"In the paper H is the height predicted from the H2 equation (H*), not the measured height; with measured height the fit is not what the authors validated. Stump excluded from volume. R2 0.988 (adj. 0.985), RMSE 0.09 m3 (Table 7). The only candidate with all parameters significant."},{"id":"koirala-2017-v-dbh","source":"koirala-2017","name":"Teak stem volume from D (V1, local)","output":{"quantity":"stem_volume"},"expression":"-0.4720 + 0.0414 * D","published":{"expression":"-0.4720 + 0.0414 * dbh","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"m3"},"taxon":{"level":"species","name":"Tectona grandis","family":"Lamiaceae","group":"broadleaf"},"region":{"scope":"site","countries":["NP"],"place":"Sagarnath Forestry Development Project, Sarlahi district, central lowland Nepal","biomes":["tropical"]},"stand":"plantation","fit":{"n_trees":31,"dbh_min_cm":6.37,"dbh_max_cm":58.92,"h_min_m":5.7,"h_max_m":26.1,"r2":0.949,"method":"least squares on training set (31 of 44 felled trees)"},"evidence":[{"field":"expression","quote":"V = a + b × (dbh) ... a -0.4720, b 0.0414","locator":"Table 6 (form V1), Table 7 (estimates)"},{"field":"fit.n_trees","quote":"31 (70 % of the data) were randomly selected to build the model","locator":"Section 2.2"}],"check":[{"inputs":{"D":20},"expected":0.356,"origin":"computed","note":"computed from the published form (coefficients as printed); not meaningful below about 11.4 cm (negative volume)"},{"inputs":{"D":35},"expected":0.977,"origin":"computed","note":"computed from the published form (coefficients as printed); not meaningful below about 11.4 cm (negative volume)"},{"inputs":{"D":55},"expected":1.805,"origin":"computed","note":"computed from the published form (coefficients as printed); not meaningful below about 11.4 cm (negative volume)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Volume is the total stem volume above the 0.10 m stump (stump excluded), summed from log sections and the tree top. Paper calls V1 the local volume equation. R2 0.949 (adj. 0.944), RMSE 0.20 m3 (Table 7). Predicts negative volume for small trees."},{"id":"komiyama-2005-eq10-root","source":"komiyama-2005","name":"Common mangrove root weight (Eq. 10)","output":{"quantity":"bgb"},"expression":"0.199 * rho^0.899 * D^2.22","published":{"expression":"0.199 * rho^0.899 * D^2.22","units":{"rho":"g/cm3","D":"cm"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Mangroves (10 species: Rhizophora, Bruguiera, Ceriops, Avicennia, Sonneratia, Xylocarpus)","group":"mangrove"},"region":{"scope":"regional","countries":["TH","ID"],"place":"Mangrove forests of Thailand and Indonesia","biomes":["tropical","mangrove"]},"stand":"natural","fit":{"n_trees":26,"r2":0.954,"rse":0.181,"cf":1.017,"method":"log-log regression, CF applied (Table 4)"},"evidence":[{"field":"expression","quote":"WR = 0.199ρ^0.899 D^2.22","locator":"Eq. 10, p. 475"},{"field":"fit","quote":"WR = 0.196ρ^0.899 (D²)^1.11 0.954 0.181 1.017","locator":"Table 4 (equation before CF)"},{"field":"fit.n_trees","quote":"Within the 104 tree samples, 26 individual trees were","locator":"Methods, p. 472"}],"check":[{"inputs":{"D":20,"rho":0.8},"expected":125.9,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Root weight includes the prop roots of Rhizophora. D = DR0.3 for Rhizophoraceae, dbh otherwise. Eq. 10 is Table 4's form times CF 1.017."},{"id":"komiyama-2005-eq9-agb","source":"komiyama-2005","name":"Common mangrove above-ground weight (Eq. 9)","output":{"quantity":"agb"},"expression":"0.251 * rho * D^2.46","published":{"expression":"0.251 * rho * D^2.46","units":{"rho":"g/cm3","D":"cm"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Mangroves (10 species: Rhizophora, Bruguiera, Ceriops, Avicennia, Sonneratia, Xylocarpus)","group":"mangrove"},"region":{"scope":"regional","countries":["TH","ID"],"place":"Mangrove forests of Thailand and Indonesia","biomes":["tropical","mangrove"]},"stand":"natural","fit":{"n_trees":104,"dbh_min_cm":5,"dbh_max_cm":48.9,"r2":0.979,"rse":0.085,"cf":1.017,"method":"log-log regression, CF applied (Table 4)"},"evidence":[{"field":"expression","quote":"Wtop = 0.251ρ D^2.46","locator":"Eq. 9, p. 475"},{"field":"fit","quote":"Wtop = 0.247ρ (D²)^1.23 0.979 0.085 1.017","locator":"Table 4 (equation before CF)"},{"field":"fit.n_trees","quote":"The tree samples were 104 individuals including 10 species.","locator":"Fig. 3 caption"}],"check":[{"inputs":{"D":20,"rho":0.8},"expected":318.64,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":40,"rho":0.7},"expected":1534.05,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Eq. 9 is Table 4's 0.247ρ(D²)^1.23 multiplied by CF 1.017. D = DR0.3 (diameter 30 cm above the highest prop root) for Rhizophoraceae and dbh for other species; Wtop excludes Rhizophora prop roots. ρ is wood density in t/m3 (= g/cm3). Trees with D > 5 cm."},{"id":"kraenzel-2000-tectona-grandis-total","source":"kraenzel-2000","name":"Tectona grandis (teak), 20-year-old Panama plantations, total tree biomass incl. roots","output":{"quantity":"total_biomass"},"expression":"10^(2.575 * log10(D) - 1.042)","published":{"expression":"10^(2.575 * log10(DBH) - 1.042)","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Tectona grandis","family":"Lamiaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["PA"],"place":"Four harvest-age (about 20-year) teak plantations in Panama (Boquerón, Peñas Blancas, Tranquilla, Aguas Claras)","biomes":["tropical"]},"stand":"plantation","fit":{"n_trees":9,"dbh_min_cm":16.9,"dbh_max_cm":43.8,"r2":0.9778,"rse":0.056,"method":"OLS on log10(tree biomass) vs log10(DBH); no correction factor reported"},"evidence":[{"field":"expression","quote":"Log Tree B = 2.575(log DBH) - 1.042","locator":"Figure 4, equation 1 (thesis p. 55)"},{"field":"fit.r2","quote":"r2 = 0.9778, SEE = 0.056 (equation 1)","locator":"Figure 4"},{"field":"fit.dbh_min_cm","quote":"diameter at breast height of the nine excavated trees ranged between 16.9 and 43.8 cm","locator":"Results, tree biomass section"},{"field":"output.quantity","quote":"Coarse Roots 14.2 31.4 28.8","locator":"Table 3 (tree totals include coarse and fine roots)"}],"check":[{"inputs":{"D":16.9},"expected":131.7675,"origin":"computed","note":"computed from the published form at the smallest sampled DBH (observed totals ranged 122.1–1365.0 kg)"},{"inputs":{"D":43.8},"expected":1530.3679,"origin":"computed","note":"computed from the published form at the largest sampled DBH"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Tree biomass B (kg dry mass) is the whole tree including excavated coarse and fine roots (Table 3 totals), so this is total above + below biomass; mean root:shoot ratio 0.157. log is base 10. SEE is on the log10 scale. Thesis precursor of Kraenzel et al. (2003) Forest Ecology and Management 173:213–225 (paywalled, not read); coefficients there may differ."},{"id":"kuyah-2012-dbh","source":"kuyah-2012","name":"Trees on farms in western Kenya, DBH only","output":{"quantity":"agb"},"expression":"0.091 * D^2.472","published":{"expression":"0.091 * DBH^2.472","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Trees on farms, mixed species (agricultural landscape)","group":"broadleaf"},"region":{"scope":"site","countries":["KE"],"place":"Yala River basin, western Kenya","biomes":["tropical"]},"stand":"agroforestry","fit":{"n_trees":72,"dbh_min_cm":2.5,"dbh_max_cm":102,"r2":0.977,"method":"power model (coefficients as in Kuyah et al. 2012a)"},"evidence":[{"field":"expression","quote":"(equation 3, AGB = 0.091 × DBH^2.472)","locator":"Kuyah & Rosenstock 2015, Methods / Table 1"},{"field":"fit.n_trees","quote":"72","locator":"Kuyah & Rosenstock 2015, Methods"}],"check":[{"inputs":{"D":20},"expected":149.69,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":50},"expected":1441.77,"origin":"computed","note":"hand-computed from the published form"}],"verification":"secondary","secondary_url":"https://doi.org/10.1007/s10457-014-9747-9","checked_at":"2026-11-01","notes":"Fitted by Kuyah et al. 2012 (not read: paywalled). Read from Kuyah & Rosenstock 2015, which restates it as equation 3. That text does not say whether a log back-transform correction is folded into 0.091; output assumed kg, DBH in cm."},{"id":"kuyah-2016-model1-bayes","source":"kuyah-2016","name":"Miombo mixed-species AGB from DBH, Bayesian (Model 1)","output":{"quantity":"agb"},"expression":"exp(-2.284 + 2.3 * ln(D))","published":{"expression":"exp(-2.284 + 2.3 * ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"33 miombo woodland tree species","group":"mixed"},"region":{"scope":"regional","countries":["MW"],"place":"Kasungu, Salima and Neno districts, Malawi","biomes":["tropical","dryland"]},"stand":"mixed","fit":{"n_trees":88,"dbh_min_cm":5.1,"dbh_max_cm":105,"method":"Hierarchical Bayesian power-law regression (trees nested within sites)"},"evidence":[{"field":"expression","quote":"AGB = 0.102 * DBH2.242 (Model 1)","locator":"Table 4 caption"},{"field":"fit.n_trees","quote":"A total of 88 trees ranging in DBH from 5.1 to 105 cm were harvested","locator":"Section 2.3"},{"field":"output.excludes","quote":"total biomass of aboveground woody parts","locator":"Section 2.5"},{"field":"expression","quote":"Model 1: Intercept −2.284; lnDBH 2.300 (2.242, 2.438)","locator":"Table 4 body"}],"check":[{"inputs":{"D":20},"expected":100.1015,"origin":"computed","note":"computed from the Table 4 body coefficients"},{"inputs":{"D":60},"expected":1252.6198,"origin":"computed","note":"computed from the Table 4 body coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Recommended by the authors: the Bayesian DBH-only power law (lowest DIC, 51.04, and MAPE 27.20%). The paper says the AGB is the \"total biomass of aboveground woody parts\"; leaves were weighed separately, so foliage is flagged as excluded. No correction factor is stated for the back-transform, so none is applied. Stand is a mix of woodland and land-use systems. The Table 4 caption prints AGB = 0.102 * DBH^2.242, but 2.242 is the lower credible bound in the table body, whose point estimates (intercept −2.284, slope 2.300) are used here. AGB is stem + branches + twigs, and twigs include leaves (Section 2.3, Appendix I)."},{"id":"kuyah-2016-model2-ols","source":"kuyah-2016","name":"Miombo mixed-species AGB from DBH, OLS (Model 2)","output":{"quantity":"agb"},"expression":"0.143 * D^2.271","published":{"expression":"0.143 * DBH^2.271","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"33 miombo woodland tree species","group":"mixed"},"region":{"scope":"regional","countries":["MW"],"place":"Kasungu, Salima and Neno districts, Malawi","biomes":["tropical","dryland"]},"stand":"mixed","fit":{"n_trees":88,"dbh_min_cm":5.1,"dbh_max_cm":105,"method":"Ordinary least squares on ln-ln"},"evidence":[{"field":"expression","quote":"AGB = 0.143 * DBH2.271 (Model 2)","locator":"Table 4 caption"},{"field":"fit.n_trees","quote":"A total of 88 trees ranging in DBH from 5.1 to 105 cm were harvested","locator":"Section 2.3"},{"field":"output.excludes","quote":"total biomass of aboveground woody parts","locator":"Section 2.5"}],"check":[{"inputs":{"D":20},"expected":128.82,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":60},"expected":1561.4,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"The OLS comparison model; the authors found it overestimated AGB relative to the Bayesian Model 1 (DIC 59.02, MAPE 27.98%). Models 3-5 add height or crown area with non-significant terms and are not entered. The paper says the AGB is the \"total biomass of aboveground woody parts\"; leaves were weighed separately, so foliage is flagged as excluded. No correction factor is stated for the back-transform, so none is applied. Stand is a mix of woodland and land-use systems. AGB is stem + branches + twigs, and twigs include leaves (Section 2.3, Appendix I)."},{"id":"kuyah-2024-avocado","source":"kuyah-2024","name":"Avocado on Kenyan farms, mean DBH (Eq. 2)","output":{"quantity":"agb"},"expression":"0.0638 * D^2.5435","published":{"expression":"0.0638 * DBH^2.5435","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Persea americana","family":"Lauraceae","group":"broadleaf"},"region":{"scope":"regional","countries":["KE"],"place":"Smallholder farms, Makueni and Kiambu counties, Kenya","biomes":["tropical"]},"stand":"agroforestry","fit":{"dbh_min_cm":5.3,"dbh_max_cm":96.2,"r2":0.86,"method":"power model"},"evidence":[{"field":"expression","quote":"Eq. 2 AGB = 0.0638 × μDBH^2.5435 5.3–96.2 2–52 0.86 18.4","locator":"CIFOR-ICRAF brief, Table 2"},{"field":"expression","quote":"avocado trees (AGB = 0.0638 × DBH^2.5435)","locator":"CIFOR-ICRAF brief, key messages"}],"check":[{"inputs":{"D":20},"expected":130.01,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":50},"expected":1337.06,"origin":"computed","note":"hand-computed from the published form"}],"verification":"secondary","secondary_url":"https://www.cifor-icraf.org/publications/pdf/briefs/Carbon-Sequestration-in-Fruit-Trees.pdf","checked_at":"2026-11-01","notes":"Read from the CIFOR-ICRAF brief (Muthuri, Kuyah, Njoki, Wakaba 2024), not the paper. The brief writes μDBH (mean DBH, for multi-stemmed trees) in its table; tree age 2-52 years; MAPE 18.4%. An infographic version reportedly shows 0.0648: confirm against the paper. Mango Eq. 1 uses mean primary-branch diameter (μDPB) and is not included."},{"id":"lambert-2005-black-spruce","source":"lambert-2005","name":"Canadian national equation, black spruce, dbh only (sum of wood, bark, branches, foliage; Table 3)","output":{"quantity":"agb"},"expression":"0.0477 * D^2.5147 + 0.0153 * D^2.2429 + 0.0278 * D^2.0839 + 0.1648 * D^1.4143","published":{"expression":"0.0477 * dbh^2.5147 + 0.0153 * dbh^2.2429 + 0.0278 * dbh^2.0839 + 0.1648 * dbh^1.4143","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Picea mariana","family":"Pinaceae","group":"conifer"},"region":{"scope":"national","countries":["CA"],"place":"Canada (ENFOR archival data, early 1980s)","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":1534,"dbh_min_cm":1.6,"dbh_max_cm":37.2,"r2":0.96,"method":"Nonlinear seemingly unrelated regression with weight functions; additivity constrained so compartments sum to total"},"evidence":[{"field":"expression","quote":"y wood = β wood1 D^βwood2 + ewood … y bark = β bark1 D^βbark2 + e bark … y foliage = β foliage1 D^βfoliage2 … y branches = β branches1 D^βbranches2","locator":"Eq. 2"},{"field":"expression","quote":"bwood1 0.0477 bwood2 2.5147 bbark1 0.0153 bbark2 2.2429 bbranches1 0.0278 bbranches2 2.0839 bfoliage1 0.1648 bfoliage2 1.4143","locator":"Table 3, Black spruce (rows transcribed)"},{"field":"expression","quote":"Black spruce bwood1 0.0477 0.0010","locator":"Table 3"},{"field":"fit.n_trees","quote":"Black spruce 1534","locator":"Table 2 (No. of trees; dbh range in parentheses)"},{"field":"fit.r2","quote":"Black spruce Total 0.0091 0.96 15.2","locator":"Table 5, dbh-based set (σ̂ii, AdjRSq, RMSE in kg)"}],"check":[{"inputs":{"D":20},"expected":127.5399,"origin":"computed","note":"computed from the published form at dbh = 20 cm"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Total aboveground biomass = wood + bark + branches + foliage, each a power function of dbh (cm), kg dry mass; the total is the sum of the four compartment equations (additivity by construction). r2 is the adjusted R² of the total. The paper also gives dbh+height equations (Table 4). Ung et al. (2008) later revised parameters for some species with BC data; not used here."},{"id":"lambert-2005-jack-pine","source":"lambert-2005","name":"Canadian national equation, jack pine, dbh only (sum of wood, bark, branches, foliage; Table 3)","output":{"quantity":"agb"},"expression":"0.0804 * D^2.4041 + 0.0184 * D^2.0703 + 0.0079 * D^2.4155 + 0.0389 * D^1.729","published":{"expression":"0.0804 * dbh^2.4041 + 0.0184 * dbh^2.0703 + 0.0079 * dbh^2.4155 + 0.0389 * dbh^1.729","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus banksiana","family":"Pinaceae","group":"conifer"},"region":{"scope":"national","countries":["CA"],"place":"Canada (ENFOR archival data, early 1980s)","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":364,"dbh_min_cm":1.7,"dbh_max_cm":41,"r2":0.94,"method":"Nonlinear seemingly unrelated regression with weight functions; additivity constrained so compartments sum to total"},"evidence":[{"field":"expression","quote":"y wood = β wood1 D^βwood2 + ewood … y bark = β bark1 D^βbark2 + e bark … y foliage = β foliage1 D^βfoliage2 … y branches = β branches1 D^βbranches2","locator":"Eq. 2"},{"field":"expression","quote":"bwood1 0.0804 bwood2 2.4041 bbark1 0.0184 bbark2 2.0703 bbranches1 0.0079 bbranches2 2.4155 bfoliage1 0.0389 bfoliage2 1.729","locator":"Table 3, Jack pine (rows transcribed)"},{"field":"expression","quote":"Jack pine bwood1 0.0804 0.0042","locator":"Table 3"},{"field":"fit.n_trees","quote":"Jack pine 364","locator":"Table 2 (No. of trees; dbh range in parentheses)"},{"field":"fit.r2","quote":"Jack pine Total 0.0227 0.94 37.5","locator":"Table 5, dbh-based set (σ̂ii, AdjRSq, RMSE in kg)"}],"check":[{"inputs":{"D":20},"expected":134.8762,"origin":"computed","note":"computed from the published form at dbh = 20 cm"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Total aboveground biomass = wood + bark + branches + foliage, each a power function of dbh (cm), kg dry mass; the total is the sum of the four compartment equations (additivity by construction). r2 is the adjusted R² of the total. The paper also gives dbh+height equations (Table 4). Ung et al. (2008) later revised parameters for some species with BC data; not used here."},{"id":"lambert-2005-red-oak","source":"lambert-2005","name":"Canadian national equation, red oak, dbh only (sum of wood, bark, branches, foliage; Table 3)","output":{"quantity":"agb"},"expression":"0.1754 * D^2.1616 + 0.0381 * D^2.0991 + 0.0085 * D^2.779 + 0.0373 * D^1.674","published":{"expression":"0.1754 * dbh^2.1616 + 0.0381 * dbh^2.0991 + 0.0085 * dbh^2.779 + 0.0373 * dbh^1.674","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus rubra","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"national","countries":["CA"],"place":"Canada (ENFOR archival data, early 1980s)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":117,"dbh_min_cm":1.1,"dbh_max_cm":55.3,"r2":0.91,"method":"Nonlinear seemingly unrelated regression with weight functions; additivity constrained so compartments sum to total"},"evidence":[{"field":"expression","quote":"y wood = β wood1 D^βwood2 + ewood … y bark = β bark1 D^βbark2 + e bark … y foliage = β foliage1 D^βfoliage2 … y branches = β branches1 D^βbranches2","locator":"Eq. 2"},{"field":"expression","quote":"bwood1 0.1754 bwood2 2.1616 bbark1 0.0381 bbark2 2.0991 bbranches1 0.0085 bbranches2 2.779 bfoliage1 0.0373 bfoliage2 1.674","locator":"Table 3, Red oak (rows transcribed)"},{"field":"expression","quote":"Red oak bwood1 0.1754 0.0149","locator":"Table 3"},{"field":"fit.n_trees","quote":"Red oak 117","locator":"Table 2 (No. of trees; dbh range in parentheses)"},{"field":"fit.r2","quote":"Red oak Total 0.0344 0.91 92.3","locator":"Table 5, dbh-based set (σ̂ii, AdjRSq, RMSE in kg)"}],"check":[{"inputs":{"D":20},"expected":175.0508,"origin":"computed","note":"computed from the published form at dbh = 20 cm"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Total aboveground biomass = wood + bark + branches + foliage, each a power function of dbh (cm), kg dry mass; the total is the sum of the four compartment equations (additivity by construction). r2 is the adjusted R² of the total. The paper also gives dbh+height equations (Table 4). Ung et al. (2008) later revised parameters for some species with BC data; not used here."},{"id":"lambert-2005-sugar-maple","source":"lambert-2005","name":"Canadian national equation, sugar maple, dbh only (sum of wood, bark, branches, foliage; Table 3)","output":{"quantity":"agb"},"expression":"0.1315 * D^2.3129 + 0.0631 * D^1.9241 + 0.033 * D^2.3741 + 0.0393 * D^1.693","published":{"expression":"0.1315 * dbh^2.3129 + 0.0631 * dbh^1.9241 + 0.033 * dbh^2.3741 + 0.0393 * dbh^1.693","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Acer saccharum","family":"Sapindaceae","group":"broadleaf"},"region":{"scope":"national","countries":["CA"],"place":"Canada (ENFOR archival data, early 1980s)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":235,"dbh_min_cm":2,"dbh_max_cm":57.8,"r2":0.97,"method":"Nonlinear seemingly unrelated regression with weight functions; additivity constrained so compartments sum to total"},"evidence":[{"field":"expression","quote":"y wood = β wood1 D^βwood2 + ewood … y bark = β bark1 D^βbark2 + e bark … y foliage = β foliage1 D^βfoliage2 … y branches = β branches1 D^βbranches2","locator":"Eq. 2"},{"field":"expression","quote":"bwood1 0.1315 bwood2 2.3129 bbark1 0.0631 bbark2 1.9241 bbranches1 0.033 bbranches2 2.3741 bfoliage1 0.0393 bfoliage2 1.693","locator":"Table 3, Sugar maple (rows transcribed)"},{"field":"expression","quote":"Sugar maple bwood1 0.1315 0.0084","locator":"Table 3"},{"field":"fit.n_trees","quote":"Sugar maple 235","locator":"Table 2 (No. of trees; dbh range in parentheses)"},{"field":"fit.r2","quote":"Sugar maple Total 0.0828 0.97 87.6","locator":"Table 5, dbh-based set (σ̂ii, AdjRSq, RMSE in kg)"}],"check":[{"inputs":{"D":20},"expected":201.1585,"origin":"computed","note":"computed from the published form at dbh = 20 cm"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Total aboveground biomass = wood + bark + branches + foliage, each a power function of dbh (cm), kg dry mass; the total is the sum of the four compartment equations (additivity by construction). r2 is the adjusted R² of the total. The paper also gives dbh+height equations (Table 4). Ung et al. (2008) later revised parameters for some species with BC data; not used here."},{"id":"lambert-2005-trembling-aspen","source":"lambert-2005","name":"Canadian national equation, trembling aspen, dbh only (sum of wood, bark, branches, foliage; Table 3)","output":{"quantity":"agb"},"expression":"0.0605 * D^2.475 + 0.0168 * D^2.3949 + 0.008 * D^2.5214 + 0.0261 * D^1.6304","published":{"expression":"0.0605 * dbh^2.475 + 0.0168 * dbh^2.3949 + 0.008 * dbh^2.5214 + 0.0261 * dbh^1.6304","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Populus tremuloides","family":"Salicaceae","group":"broadleaf"},"region":{"scope":"national","countries":["CA"],"place":"Canada (ENFOR archival data, early 1980s)","biomes":["boreal","temperate"]},"stand":"natural","fit":{"n_trees":773,"dbh_min_cm":0.7,"dbh_max_cm":47.2,"r2":0.95,"method":"Nonlinear seemingly unrelated regression with weight functions; additivity constrained so compartments sum to total"},"evidence":[{"field":"expression","quote":"y wood = β wood1 D^βwood2 + ewood … y bark = β bark1 D^βbark2 + e bark … y foliage = β foliage1 D^βfoliage2 … y branches = β branches1 D^βbranches2","locator":"Eq. 2"},{"field":"expression","quote":"bwood1 0.0605 bwood2 2.475 bbark1 0.0168 bbark2 2.3949 bbranches1 0.008 bbranches2 2.5214 bfoliage1 0.0261 bfoliage2 1.6304","locator":"Table 3, Trembling aspen (rows transcribed)"},{"field":"expression","quote":"Trembling aspen bwood1 0.0605 0.0029","locator":"Table 3"},{"field":"fit.n_trees","quote":"Trembling aspen 773","locator":"Table 2 (No. of trees; dbh range in parentheses)"},{"field":"fit.r2","quote":"Trembling aspen Total 0.0199 0.95 42.6","locator":"Table 5, dbh-based set (σ̂ii, AdjRSq, RMSE in kg)"}],"check":[{"inputs":{"D":20},"expected":141.0603,"origin":"computed","note":"computed from the published form at dbh = 20 cm"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Total aboveground biomass = wood + bark + branches + foliage, each a power function of dbh (cm), kg dry mass; the total is the sum of the four compartment equations (additivity by construction). r2 is the adjusted R² of the total. The paper also gives dbh+height equations (Table 4). Ung et al. (2008) later revised parameters for some species with BC data; not used here."},{"id":"lencinas-2002-vfsc-sh","source":"lencinas-2002","name":"Nothofagus antarctica inside-bark merchantable stem volume (to 15 cm top) from D and H (Schumacher-Hall, Cuadro 4)","output":{"quantity":"stem_volume"},"expression":"0.20379745 / 10000 * D^2.32092575 * H^0.71495048","published":{"expression":"0.20379745 / 10000 * DAP^2.32092575 * HT^0.71495048","units":{"DAP":"cm","HT":"m"},"variables":{"DAP":"D","HT":"H"},"output_unit":"m3"},"taxon":{"level":"species","name":"Nothofagus antarctica","family":"Nothofagaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["AR"],"place":"Central Isla Grande de Tierra del Fuego, Argentina (15 sites)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":251,"dbh_min_cm":7.5,"dbh_max_cm":61,"h_min_m":3.5,"h_max_m":15,"r2":0.93,"method":"nonlinear regression"},"evidence":[{"field":"expression","quote":"V = (a / 10.000) · DAP^b · HT^c (2)","locator":"Ecuación (2), Modelo 2 (estándar tradicional, Schumacher-Hall)"},{"field":"expression","quote":"VFSC = volumen de fuste sin corteza (m3); Modelo 2: a = 0,20379745, b = 2,32092575, c = 0,71495048","locator":"Cuadro 4"},{"field":"fit.n_trees","quote":"Se utilizaron 251 árboles de Nothofagus antarctica a lo largo de Tierra del Fuego (Argentina) (DAP entre 7,5-61,0 cm y HT entre 3,5-15,0 m).","locator":"Resumen"},{"field":"fit.r2","quote":"r2 0,93","locator":"Cuadro 4, Modelo 2"}],"check":[{"inputs":{"D":15,"H":8},"expected":0.04836,"origin":"computed","note":"computed from the published form (coefficients as printed; a divided by 10.000)"},{"inputs":{"D":30,"H":12},"expected":0.32289,"origin":"computed","note":"computed from the published form (coefficients as printed; a divided by 10.000)"},{"inputs":{"D":50,"H":14},"expected":1.1798,"origin":"computed","note":"computed from the published form (coefficients as printed; a divided by 10.000)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Cuadro 4 and the formulas are images on SciELO; coefficients transcribed from them. V in m3, DAP in cm, HT total height in m. Coefficient a is divided by 10.000 in the printed formula. VFSC is the merchantable stem volume inside bark to a 15 cm minimum top diameter (Métodos: 'el fuste sin corteza de extracción hasta un diámetro mínimo de 15 cm'), not the whole stem. The paper also prints Models 3 and 5 (site class CS or stand dominant height HD) and per-stand local models; those need predictors outside the canonical variables and are not included."},{"id":"lencinas-2002-vtcc-sh","source":"lencinas-2002","name":"Nothofagus antarctica total over-bark volume from D and H (Schumacher-Hall, Cuadro 4)","output":{"quantity":"total_volume"},"expression":"0.59330761 / 10000 * D^2.16326966 * H^0.68172248","published":{"expression":"0.59330761 / 10000 * DAP^2.16326966 * HT^0.68172248","units":{"DAP":"cm","HT":"m"},"variables":{"DAP":"D","HT":"H"},"output_unit":"m3"},"taxon":{"level":"species","name":"Nothofagus antarctica","family":"Nothofagaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["AR"],"place":"Central Isla Grande de Tierra del Fuego, Argentina (15 sites)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":251,"dbh_min_cm":7.5,"dbh_max_cm":61,"h_min_m":3.5,"h_max_m":15,"r2":0.943,"method":"nonlinear regression"},"evidence":[{"field":"expression","quote":"V = (a / 10.000) · DAP^b · HT^c (2)","locator":"Ecuación (2), Modelo 2 (estándar tradicional, Schumacher-Hall)"},{"field":"expression","quote":"VTCC = volumen total con corteza (m3); Modelo 2: a = 0,59330761, b = 2,16326966, c = 0,68172248","locator":"Cuadro 4"},{"field":"fit.n_trees","quote":"Se utilizaron 251 árboles de Nothofagus antarctica a lo largo de Tierra del Fuego (Argentina) (DAP entre 7,5-61,0 cm y HT entre 3,5-15,0 m).","locator":"Resumen"},{"field":"fit.r2","quote":"r2 0,943","locator":"Cuadro 4, Modelo 2"}],"check":[{"inputs":{"D":15,"H":8},"expected":0.08573,"origin":"computed","note":"computed from the published form (coefficients as printed; a divided by 10.000)"},{"inputs":{"D":30,"H":12},"expected":0.50628,"origin":"computed","note":"computed from the published form (coefficients as printed; a divided by 10.000)"},{"inputs":{"D":50,"H":14},"expected":1.69805,"origin":"computed","note":"computed from the published form (coefficients as printed; a divided by 10.000)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Cuadro 4 and the formulas are images on SciELO; coefficients transcribed from them. V in m3, DAP in cm, HT total height in m. Coefficient a is divided by 10.000 in the printed formula. VTCC is total volume over bark including the stump and a fine tip down to 5 cm diameter (Métodos: 'incluyó la corteza, el tocón y una punta fina de hasta 5 cm'). The paper also prints Models 3 and 5 (site class CS or stand dominant height HD) and per-stand local models; those need predictors outside the canonical variables and are not included."},{"id":"lisboa-2025-hd-power","source":"lisboa-2025","name":"Mopane height from D (power H-D model)","output":{"quantity":"height"},"expression":"1.3 + 1.225 * D^0.616","published":{"expression":"1.3 + 1.225 * D^0.616","units":{"D":"cm"},"output_unit":"m"},"taxon":{"level":"species","name":"Colophospermum mopane","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["MZ"],"place":"Mabalane (Gaza) and Tambara (Manica) districts, mopane woodland","biomes":["tropical","dryland"]},"stand":"natural","fit":{"dbh_min_cm":5,"dbh_max_cm":109,"h_min_m":3.8,"h_max_m":21.6,"method":"nonlinear regression, H(D) = 1.3 + a D^b"},"evidence":[{"field":"expression","quote":"Power 1.225 ± 0.157 (0.917 to 1.533) 0.616 ± 0.042 (0.533 to 0.699)","locator":"Table 8, p. 13"},{"field":"expression","quote":"H(D) = 1.3 + aDb+ ε","locator":"Table 2, model 5 Power, p. 5"},{"field":"fit.dbh_max_cm","quote":"D range (cm) 5–109","locator":"Table 3, row ID 1 (this study), p. 7"},{"field":"fit.h_max_m","quote":"Total tree height (m) 4.0 9.3 21.6 52 / 3.8 8.3 14.6 32","locator":"Table 4 (Mabalane and Tambara rows; min and max combined), p. 8"}],"check":[{"inputs":{"D":20},"expected":9.05,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Best 2-parameter height-diameter model per the authors (highest Akaike weight); the 3-parameter models are left out because their parameters are not significant. The fixed 1.3 m offset comes from the model form in Table 2; Table 8 labels the coefficients a and b. n is not restated for this fit, so it is omitted. n = 120 sampled trees (Methods p. 3, Table 3), but Table 5 heads the total-AGB column 'n = 84', so the fitted n may be 84."},{"id":"lisboa-2025-rm1-d","source":"lisboa-2025","name":"Mopane root biomass from D (RM1)","output":{"quantity":"bgb"},"expression":"exp(-1.927 + 1.964 * ln(D))","published":{"expression":"exp(-1.927 + 1.964 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Colophospermum mopane","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["MZ"],"place":"Mabalane (Gaza) and Tambara (Manica) districts, mopane woodland","biomes":["tropical","dryland"]},"stand":"natural","fit":{"r2":0.9783,"method":"MM-estimator robust regression (ln Y = ln a + b ln D)"},"evidence":[{"field":"expression","quote":"ln(Y) = ln(a) + b(lnD) + Ɛ RM1 – 1.927 ± 0.2728 (– 2.509 to − 1.3459) 1.964 ± 0.073 (1.808 to 2.120)","locator":"Table 6, model RM1, p. 10"},{"field":"fit.r2","quote":"RM1 ... R-square 97.83","locator":"Table 7, model RM1, p. 10 (printed as a percentage)"},{"field":"notes","quote":"RM1 was the best-fitting model with a higher AICw than RM2 and RM3","locator":"Results, p. 11"}],"check":[{"inputs":{"D":20},"expected":52.28,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Best-fitting root model per the authors. Root biomass (BGB) is stump plus coarse roots from excavation; fine roots under 2 mm were not sampled. n and ranges are not stated separately for the root sample, so they are omitted. No back-transformation correction factor is stated or applied. n = 120 sampled trees (Methods p. 3, Table 3), but Table 5 heads the total-AGB column 'n = 84', so the fitted n may be 84."},{"id":"lisboa-2025-rm3-d2h","source":"lisboa-2025","name":"Mopane root biomass from D²H (RM3)","output":{"quantity":"bgb"},"expression":"exp(-2.797 + 0.803 * ln(D^2 * H))","published":{"expression":"exp(-2.797 + 0.803 * ln(D^2 * H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Colophospermum mopane","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["MZ"],"place":"Mabalane (Gaza) and Tambara (Manica) districts, mopane woodland","biomes":["tropical","dryland"]},"stand":"natural","fit":{"r2":0.978,"method":"MM-estimator robust regression (ln Y = ln a + b ln(D²H))"},"evidence":[{"field":"expression","quote":"ln(Y) = ln(a) + bln(D2H) + Ɛ RM3 – 2.797 ± 0.306 (– 3.450 to − 2.144) 0.803 ± 0.030 (0.739 to 0.867)","locator":"Table 6, model RM3, p. 10"},{"field":"fit.r2","quote":"RM3 ... R-square 97.80","locator":"Table 7, model RM3, p. 10 (printed as a percentage)"}],"check":[{"inputs":{"D":20,"H":9},"expected":43.75,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Root model with D²H; the D+H model RM2 is left out because its height term is not significantly different from zero (95% CI –0.591 to 1.350). Root biomass (BGB) is stump plus coarse roots from excavation; fine roots under 2 mm were not sampled. n and ranges are not stated separately for the root sample, so they are omitted. No back-transformation correction factor is stated or applied. n = 120 sampled trees (Methods p. 3, Table 3), but Table 5 heads the total-AGB column 'n = 84', so the fitted n may be 84."},{"id":"lisboa-2025-tm1-d","source":"lisboa-2025","name":"Mopane total AGB from D (TM1)","output":{"quantity":"agb"},"expression":"exp(-1.740 + 2.289 * ln(D))","published":{"expression":"exp(-1.740 + 2.289 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Colophospermum mopane","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["MZ"],"place":"Mabalane (Gaza) and Tambara (Manica) districts, mopane woodland","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":120,"dbh_min_cm":5,"dbh_max_cm":109,"h_min_m":3.8,"h_max_m":21.6,"r2":0.9481,"method":"log-linear OLS regression (ln Y = ln a + b ln D)"},"evidence":[{"field":"expression","quote":"ln(Y) = ln(a) + b(lnD) + Ɛ TM1 – 1.740 ± 0.168 (– 2.074 to − 1.405) 2.289 ± 0.059 (2.172 to 2.406)","locator":"Table 6, model TM1, p. 10"},{"field":"fit.n_trees","quote":"120 individuals of C. mopane","locator":"Methods, Forest inventory and destructive sampling, p. 3"},{"field":"fit.dbh_max_cm","quote":"D range (cm) 5–109","locator":"Table 3, row ID 1 (this study), p. 7"},{"field":"fit.h_max_m","quote":"Total tree height (m) 4.0 9.3 21.6 52 / 3.8 8.3 14.6 32","locator":"Table 4 (Mabalane and Tambara rows; min and max combined), p. 8"},{"field":"fit.r2","quote":"TM1 ... R-square 94.81","locator":"Table 7, model TM1, p. 10 (printed as a percentage)"}],"check":[{"inputs":{"D":20},"expected":166.87,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Model 1 (D only); the authors suggest it gives lower uncertainty than the D+H model when height must itself be estimated. Total aboveground biomass is the sum of stem, branches (min. 3 cm) and foliage, so leaves are included. The printed intercept is ln(a); no back-transformation correction factor is stated in the paper and none is applied. TM1 to TM3 are the three AGB models the paper fits; all are included. R² is the printed R-square (94.81 %) as a fraction. Table 3 prints the same equation without exp(): Y = – 1.740 + 2.289 ln(D), where Y is ln of biomass. n = 120 sampled trees (Methods p. 3, Table 3), but Table 5 heads the total-AGB column 'n = 84', so the fitted n may be 84."},{"id":"lisboa-2025-tm2-d-h","source":"lisboa-2025","name":"Mopane total AGB from D and H (TM2)","output":{"quantity":"agb"},"expression":"exp(-2.280 + 1.917 * ln(D) + 0.757 * ln(H))","published":{"expression":"exp(-2.280 + 1.917 * ln(D) + 0.757 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Colophospermum mopane","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["MZ"],"place":"Mabalane (Gaza) and Tambara (Manica) districts, mopane woodland","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":120,"dbh_min_cm":5,"dbh_max_cm":109,"h_min_m":3.8,"h_max_m":21.6,"r2":0.9591,"method":"log-linear OLS regression (ln Y = ln a + b ln D + c ln H)"},"evidence":[{"field":"expression","quote":"Y = exp (– 2.280 + 1.917ln(D) + 0.757 ln(H))","locator":"Table 3, model ID 2 (this study), p. 7"},{"field":"fit.n_trees","quote":"120 individuals of C. mopane","locator":"Methods, Forest inventory and destructive sampling, p. 3"},{"field":"fit.dbh_max_cm","quote":"D range (cm) 5–109","locator":"Table 3, row ID 1 (this study), p. 7"},{"field":"fit.h_max_m","quote":"Total tree height (m) 4.0 9.3 21.6 52 / 3.8 8.3 14.6 32","locator":"Table 4 (Mabalane and Tambara rows; min and max combined), p. 8"},{"field":"fit.r2","quote":"TM2 ... R-square 95.91","locator":"Table 7, model TM2, p. 10 (printed as a percentage)"}],"check":[{"inputs":{"D":20,"H":9},"expected":168.36,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Model 2 (D and H). Total aboveground biomass is the sum of stem, branches (min. 3 cm) and foliage, so leaves are included. The printed intercept is ln(a); no back-transformation correction factor is stated in the paper and none is applied. n = 120 sampled trees (Methods p. 3, Table 3), but Table 5 heads the total-AGB column 'n = 84', so the fitted n may be 84."},{"id":"lisboa-2025-tm3-d2h","source":"lisboa-2025","name":"Mopane total AGB from D²H (TM3)","output":{"quantity":"agb"},"expression":"exp(-2.373 + 0.916 * ln(D^2 * H))","published":{"expression":"exp(-2.373 + 0.916 * ln(D^2 * H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Colophospermum mopane","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["MZ"],"place":"Mabalane (Gaza) and Tambara (Manica) districts, mopane woodland","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":120,"dbh_min_cm":5,"dbh_max_cm":109,"h_min_m":3.8,"h_max_m":21.6,"r2":0.9591,"method":"log-linear OLS regression (ln Y = ln a + b ln(D²H))"},"evidence":[{"field":"expression","quote":"ln(Y) = ln(a) + bln(D2H) + Ɛ TM3 – 2.373 ± 0.162 (– 2.696 to − 2.050) 0.916 ± 0.021 (0.875 to 0.957)","locator":"Table 6, model TM3, p. 10"},{"field":"fit.n_trees","quote":"120 individuals of C. mopane","locator":"Methods, Forest inventory and destructive sampling, p. 3"},{"field":"fit.dbh_max_cm","quote":"D range (cm) 5–109","locator":"Table 3, row ID 1 (this study), p. 7"},{"field":"fit.h_max_m","quote":"Total tree height (m) 4.0 9.3 21.6 52 / 3.8 8.3 14.6 32","locator":"Table 4 (Mabalane and Tambara rows; min and max combined), p. 8"},{"field":"fit.r2","quote":"TM3 ... R-square 95.91","locator":"Table 7, model TM3, p. 10 (printed as a percentage)"}],"check":[{"inputs":{"D":20,"H":9},"expected":168.65,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Model 3 (D²H); best by Akaike weight among the three total AGB models per the authors. Total aboveground biomass is the sum of stem, branches (min. 3 cm) and foliage, so leaves are included. The printed intercept is ln(a); no back-transformation correction factor is stated in the paper and none is applied. n = 120 sampled trees (Methods p. 3, Table 3), but Table 5 heads the total-AGB column 'n = 84', so the fitted n may be 84."},{"id":"lwin-2026-ao-agb","source":"lwin-2026","name":"Avicennia officinalis aboveground biomass, a x^b of DBH^2 * H (Table 3)","output":{"quantity":"agb"},"expression":"0.0181 * (D^2 * H)^1.131","published":{"expression":"0.0181 * (DBH^2 * H)^1.131","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D","H":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Avicennia officinalis","family":"Acanthaceae","group":"mangrove"},"region":{"scope":"site","countries":["MM"],"place":"Letkhokkon delta mangrove, Myanmar","biomes":["tropical","mangrove"]},"stand":"natural","fit":{"n_trees":15,"dbh_min_cm":5,"dbh_max_cm":13,"h_min_m":5.6,"h_max_m":8.2,"r2":0.967,"method":"Power function y = a x^b fitted in SPSS Curve Estimation (OLS on log-transformed variables, then back-transformed)"},"evidence":[{"field":"expression","quote":"AGB (kg) DBH2H (cm2 m) 15 0.0181 (±0.0600×10−1) 1.131 (±0.0583) 0.967*","locator":"Table 3"},{"field":"fit.n_trees","quote":"Ao 15 5 13 5.6 8.2","locator":"Table 2"},{"field":"fit.dbh_min_cm","quote":"The A. officinalis had a DBH range of 5.0 cm to 13.0 cm and a H range of 5.6 m to 8.2 m","locator":"Biomass measurement section"}],"check":[{"inputs":{"D":8,"H":6},"expected":15.155,"origin":"computed","note":"computed from the Table 3 coefficients"},{"inputs":{"D":15,"H":9},"expected":99.3677,"origin":"computed","note":"computed from the Table 3 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Power-law fit; the paper states coefficients are back-transformed from the log-log OLS fit and prints no correction factor, so none is applied. Site-level model for the Letkhokkon delta mangrove (Ayeyarwady delta region), Myanmar. AGB is leaf + branch + stem (aboveground, foliage included)."},{"id":"lwin-2026-ao-branch","source":"lwin-2026","name":"Avicennia officinalis branch biomass, a x^b of DBH * H (Table 3)","output":{"quantity":"branch_biomass"},"expression":"0.000574 * (D * H)^2.34","published":{"expression":"0.000574 * (DBH * H)^2.34","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D","H":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Avicennia officinalis","family":"Acanthaceae","group":"mangrove"},"region":{"scope":"site","countries":["MM"],"place":"Letkhokkon delta mangrove, Myanmar","biomes":["tropical","mangrove"]},"stand":"natural","fit":{"n_trees":15,"dbh_min_cm":5,"dbh_max_cm":13,"h_min_m":5.6,"h_max_m":8.2,"r2":0.922,"method":"Power function y = a x^b fitted in SPSS Curve Estimation (OLS on log-transformed variables, then back-transformed)"},"evidence":[{"field":"expression","quote":"Branch (kg) DBHH (cm m) 15 0.0574 ×10−2 (±0.0411×10−2) 2.340 (±0.189) 0.922*","locator":"Table 3"},{"field":"fit.n_trees","quote":"Ao 15 5 13 5.6 8.2","locator":"Table 2"},{"field":"fit.dbh_min_cm","quote":"The A. officinalis had a DBH range of 5.0 cm to 13.0 cm and a H range of 5.6 m to 8.2 m","locator":"Biomass measurement section"}],"check":[{"inputs":{"D":8,"H":6},"expected":4.9319,"origin":"computed","note":"computed from the Table 3 coefficients"},{"inputs":{"D":15,"H":9},"expected":55.4489,"origin":"computed","note":"computed from the Table 3 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Power-law fit; the paper states coefficients are back-transformed from the log-log OLS fit and prints no correction factor, so none is applied. Site-level model for the Letkhokkon delta mangrove (Ayeyarwady delta region), Myanmar."},{"id":"lwin-2026-ao-leaf","source":"lwin-2026","name":"Avicennia officinalis leaf biomass, a x^b of rho * DBH * H (Table 3)","output":{"quantity":"foliage_biomass"},"expression":"0.000802 * (rho * D * H)^2.18","published":{"expression":"0.000802 * (rho * DBH * H)^2.18","units":{"DBH":"cm","H":"m","rho":"g/cm3"},"variables":{"DBH":"D","H":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Avicennia officinalis","family":"Acanthaceae","group":"mangrove"},"region":{"scope":"site","countries":["MM"],"place":"Letkhokkon delta mangrove, Myanmar","biomes":["tropical","mangrove"]},"stand":"natural","fit":{"n_trees":15,"dbh_min_cm":5,"dbh_max_cm":13,"h_min_m":5.6,"h_max_m":8.2,"r2":0.78,"method":"Power function y = a x^b fitted in SPSS Curve Estimation (OLS on log-transformed variables, then back-transformed)"},"evidence":[{"field":"expression","quote":"Leaf (kg) ρDBHH (g cm−3 cm m) 15 0.0802 ×10−2 (±0.0826×10−2) 2.180 (±0.321) 0.780*","locator":"Table 3"},{"field":"fit.n_trees","quote":"Ao 15 5 13 5.6 8.2","locator":"Table 2"},{"field":"fit.dbh_min_cm","quote":"The A. officinalis had a DBH range of 5.0 cm to 13.0 cm and a H range of 5.6 m to 8.2 m","locator":"Biomass measurement section"}],"check":[{"inputs":{"D":8,"H":6,"rho":0.5},"expected":0.8185,"origin":"computed","note":"computed from the Table 3 coefficients"},{"inputs":{"D":15,"H":9,"rho":0.5},"expected":7.7993,"origin":"computed","note":"computed from the Table 3 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Power-law fit; the paper states coefficients are back-transformed from the log-log OLS fit and prints no correction factor, so none is applied. Site-level model for the Letkhokkon delta mangrove (Ayeyarwady delta region), Myanmar. Wood density rho is per-tree basic density measured on trunk discs (species means: 0.557 g/cm3 Ao, 0.471 g/cm3 Sa)."},{"id":"lwin-2026-ao-stem","source":"lwin-2026","name":"Avicennia officinalis stem biomass, a x^b of rho * DBH^2 * H (Table 3)","output":{"quantity":"stem_biomass"},"expression":"0.0489 * (rho * D^2 * H)^0.948","published":{"expression":"0.0489 * (rho * DBH^2 * H)^0.948","units":{"DBH":"cm","H":"m","rho":"g/cm3"},"variables":{"DBH":"D","H":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Avicennia officinalis","family":"Acanthaceae","group":"mangrove"},"region":{"scope":"site","countries":["MM"],"place":"Letkhokkon delta mangrove, Myanmar","biomes":["tropical","mangrove"]},"stand":"natural","fit":{"n_trees":15,"dbh_min_cm":5,"dbh_max_cm":13,"h_min_m":5.6,"h_max_m":8.2,"r2":0.965,"method":"Power function y = a x^b fitted in SPSS Curve Estimation (OLS on log-transformed variables, then back-transformed)"},"evidence":[{"field":"expression","quote":"Stem (kg) ρDBH2H (g cm−3 cm2 m) 15 0.0489 (±0.0126) 0.948 (±0.0504) 0.965*","locator":"Table 3"},{"field":"fit.n_trees","quote":"Ao 15 5 13 5.6 8.2","locator":"Table 2"},{"field":"fit.dbh_min_cm","quote":"The A. officinalis had a DBH range of 5.0 cm to 13.0 cm and a H range of 5.6 m to 8.2 m","locator":"Biomass measurement section"}],"check":[{"inputs":{"D":8,"H":6,"rho":0.5},"expected":7.143,"origin":"computed","note":"computed from the Table 3 coefficients"},{"inputs":{"D":15,"H":9,"rho":0.5},"expected":34.548,"origin":"computed","note":"computed from the Table 3 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Power-law fit; the paper states coefficients are back-transformed from the log-log OLS fit and prints no correction factor, so none is applied. Site-level model for the Letkhokkon delta mangrove (Ayeyarwady delta region), Myanmar. Wood density rho is per-tree basic density measured on trunk discs (species means: 0.557 g/cm3 Ao, 0.471 g/cm3 Sa)."},{"id":"lwin-2026-mixed-d","source":"lwin-2026","name":"Avicennia officinalis + Sonneratia apetala aboveground biomass, a x^b of DBH (Table 5)","output":{"quantity":"agb"},"expression":"0.0894 * (D)^2.45","published":{"expression":"0.0894 * (DBH)^2.45","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Avicennia officinalis and Sonneratia apetala","group":"mangrove"},"region":{"scope":"site","countries":["MM"],"place":"Letkhokkon delta mangrove, Myanmar","biomes":["tropical","mangrove"]},"stand":"natural","fit":{"n_trees":30,"dbh_min_cm":5,"dbh_max_cm":20,"r2":0.934,"method":"Power function y = a x^b fitted in SPSS Curve Estimation (OLS on log-transformed variables, then back-transformed)"},"evidence":[{"field":"expression","quote":"DBH (cm) 30 0.0894 (±0.0226) 2.450 (±0.123) 0.934*","locator":"Table 5"},{"field":"fit.n_trees","quote":"Thirty sample trees of Avicennia officinalis (Ao) and Sonneratia apetala (Sa) were harvested","locator":"Biomass measurement section"},{"field":"fit.dbh_min_cm","quote":"Letkhokkon, Myanmar Mixed 30 5 20 AGB=0.0698(ρDBH2H)0.969 0.95","locator":"Table 6, \"This study\" mixed-species row (n, DBH range (cm) columns)"}],"check":[{"inputs":{"D":8},"expected":14.5851,"origin":"computed","note":"computed from the Table 5 coefficients"},{"inputs":{"D":15},"expected":68.0395,"origin":"computed","note":"computed from the Table 5 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Power-law fit; the paper states coefficients are back-transformed from the log-log OLS fit and prints no correction factor, so none is applied. Site-level model for the Letkhokkon delta mangrove (Ayeyarwady delta region), Myanmar. Mixed-species model for the two dominant species pooled (n = 30); the pooled DBH range 5–20 cm is printed in Table 6 (Ao 5.0–13.0 cm, Sa 5.1–20.0 cm per Table 2); H range of the pooled sample is 4.6–13.6 m per Table 2 but not printed as one range, so left out. The paper reports ρDBH2H as the best-fit mixed model; all six Table 5 forms are included. AGB is leaf + branch + stem (aboveground, foliage included)."},{"id":"lwin-2026-mixed-d2h","source":"lwin-2026","name":"Avicennia officinalis + Sonneratia apetala aboveground biomass, a x^b of DBH^2 * H (Table 5)","output":{"quantity":"agb"},"expression":"0.0425 * (D^2 * H)^0.943","published":{"expression":"0.0425 * (DBH^2 * H)^0.943","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D","H":"H"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Avicennia officinalis and Sonneratia apetala","group":"mangrove"},"region":{"scope":"site","countries":["MM"],"place":"Letkhokkon delta mangrove, Myanmar","biomes":["tropical","mangrove"]},"stand":"natural","fit":{"n_trees":30,"dbh_min_cm":5,"dbh_max_cm":20,"r2":0.92,"method":"Power function y = a x^b fitted in SPSS Curve Estimation (OLS on log-transformed variables, then back-transformed)"},"evidence":[{"field":"expression","quote":"DBH2H (cm2 m) 30 0.0425 (±0.0136) 0.943 (±0.0525) 0.920*","locator":"Table 5"},{"field":"fit.n_trees","quote":"Thirty sample trees of Avicennia officinalis (Ao) and Sonneratia apetala (Sa) were harvested","locator":"Biomass measurement section"},{"field":"fit.dbh_min_cm","quote":"Letkhokkon, Myanmar Mixed 30 5 20 AGB=0.0698(ρDBH2H)0.969 0.95","locator":"Table 6, \"This study\" mixed-species row (n, DBH range (cm) columns)"}],"check":[{"inputs":{"D":8,"H":6},"expected":11.6255,"origin":"computed","note":"computed from the Table 5 coefficients"},{"inputs":{"D":15,"H":9},"expected":55.7632,"origin":"computed","note":"computed from the Table 5 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Power-law fit; the paper states coefficients are back-transformed from the log-log OLS fit and prints no correction factor, so none is applied. Site-level model for the Letkhokkon delta mangrove (Ayeyarwady delta region), Myanmar. Mixed-species model for the two dominant species pooled (n = 30); the pooled DBH range 5–20 cm is printed in Table 6 (Ao 5.0–13.0 cm, Sa 5.1–20.0 cm per Table 2); H range of the pooled sample is 4.6–13.6 m per Table 2 but not printed as one range, so left out. The paper reports ρDBH2H as the best-fit mixed model; all six Table 5 forms are included. AGB is leaf + branch + stem (aboveground, foliage included)."},{"id":"lwin-2026-mixed-dh","source":"lwin-2026","name":"Avicennia officinalis + Sonneratia apetala aboveground biomass, a x^b of DBH * H (Table 5)","output":{"quantity":"agb"},"expression":"0.0308 * (D * H)^1.498","published":{"expression":"0.0308 * (DBH * H)^1.498","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D","H":"H"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Avicennia officinalis and Sonneratia apetala","group":"mangrove"},"region":{"scope":"site","countries":["MM"],"place":"Letkhokkon delta mangrove, Myanmar","biomes":["tropical","mangrove"]},"stand":"natural","fit":{"n_trees":30,"dbh_min_cm":5,"dbh_max_cm":20,"r2":0.891,"method":"Power function y = a x^b fitted in SPSS Curve Estimation (OLS on log-transformed variables, then back-transformed)"},"evidence":[{"field":"expression","quote":"DBHH (cm m) 30 0.0308 (±0.0124) 1.498 (±0.0992) 0.891*","locator":"Table 5"},{"field":"fit.n_trees","quote":"Thirty sample trees of Avicennia officinalis (Ao) and Sonneratia apetala (Sa) were harvested","locator":"Biomass measurement section"},{"field":"fit.dbh_min_cm","quote":"Letkhokkon, Myanmar Mixed 30 5 20 AGB=0.0698(ρDBH2H)0.969 0.95","locator":"Table 6, \"This study\" mixed-species row (n, DBH range (cm) columns)"}],"check":[{"inputs":{"D":8,"H":6},"expected":10.1637,"origin":"computed","note":"computed from the Table 5 coefficients"},{"inputs":{"D":15,"H":9},"expected":47.8399,"origin":"computed","note":"computed from the Table 5 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Power-law fit; the paper states coefficients are back-transformed from the log-log OLS fit and prints no correction factor, so none is applied. Site-level model for the Letkhokkon delta mangrove (Ayeyarwady delta region), Myanmar. Mixed-species model for the two dominant species pooled (n = 30); the pooled DBH range 5–20 cm is printed in Table 6 (Ao 5.0–13.0 cm, Sa 5.1–20.0 cm per Table 2); H range of the pooled sample is 4.6–13.6 m per Table 2 but not printed as one range, so left out. The paper reports ρDBH2H as the best-fit mixed model; all six Table 5 forms are included. AGB is leaf + branch + stem (aboveground, foliage included)."},{"id":"lwin-2026-mixed-rhod","source":"lwin-2026","name":"Avicennia officinalis + Sonneratia apetala aboveground biomass, a x^b of rho * DBH (Table 5)","output":{"quantity":"agb"},"expression":"0.483 * (rho * D)^2.419","published":{"expression":"0.483 * (rho * DBH)^2.419","units":{"DBH":"cm","rho":"g/cm3"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Avicennia officinalis and Sonneratia apetala","group":"mangrove"},"region":{"scope":"site","countries":["MM"],"place":"Letkhokkon delta mangrove, Myanmar","biomes":["tropical","mangrove"]},"stand":"natural","fit":{"n_trees":30,"dbh_min_cm":5,"dbh_max_cm":20,"r2":0.934,"method":"Power function y = a x^b fitted in SPSS Curve Estimation (OLS on log-transformed variables, then back-transformed)"},"evidence":[{"field":"expression","quote":"ρDBH (g cm−3 cm) 30 0.483 (±0.0818) 2.419 (±0.121) 0.934*","locator":"Table 5"},{"field":"fit.n_trees","quote":"Thirty sample trees of Avicennia officinalis (Ao) and Sonneratia apetala (Sa) were harvested","locator":"Biomass measurement section"},{"field":"fit.dbh_min_cm","quote":"Letkhokkon, Myanmar Mixed 30 5 20 AGB=0.0698(ρDBH2H)0.969 0.95","locator":"Table 6, \"This study\" mixed-species row (n, DBH range (cm) columns)"}],"check":[{"inputs":{"D":8,"rho":0.5},"expected":13.8143,"origin":"computed","note":"computed from the Table 5 coefficients"},{"inputs":{"D":15,"rho":0.5},"expected":63.2005,"origin":"computed","note":"computed from the Table 5 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Power-law fit; the paper states coefficients are back-transformed from the log-log OLS fit and prints no correction factor, so none is applied. Site-level model for the Letkhokkon delta mangrove (Ayeyarwady delta region), Myanmar. Wood density rho is per-tree basic density measured on trunk discs (species means: 0.557 g/cm3 Ao, 0.471 g/cm3 Sa). Mixed-species model for the two dominant species pooled (n = 30); the pooled DBH range 5–20 cm is printed in Table 6 (Ao 5.0–13.0 cm, Sa 5.1–20.0 cm per Table 2); H range of the pooled sample is 4.6–13.6 m per Table 2 but not printed as one range, so left out. The paper reports ρDBH2H as the best-fit mixed model; all six Table 5 forms are included. AGB is leaf + branch + stem (aboveground, foliage included)."},{"id":"lwin-2026-mixed-rhod2h","source":"lwin-2026","name":"Avicennia officinalis + Sonneratia apetala aboveground biomass, a x^b of rho * DBH^2 * H (Table 5)","output":{"quantity":"agb"},"expression":"0.0698 * (rho * D^2 * H)^0.969","published":{"expression":"0.0698 * (rho * DBH^2 * H)^0.969","units":{"DBH":"cm","H":"m","rho":"g/cm3"},"variables":{"DBH":"D","H":"H"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Avicennia officinalis and Sonneratia apetala","group":"mangrove"},"region":{"scope":"site","countries":["MM"],"place":"Letkhokkon delta mangrove, Myanmar","biomes":["tropical","mangrove"]},"stand":"natural","fit":{"n_trees":30,"dbh_min_cm":5,"dbh_max_cm":20,"r2":0.95,"method":"Power function y = a x^b fitted in SPSS Curve Estimation (OLS on log-transformed variables, then back-transformed)"},"evidence":[{"field":"expression","quote":"ρDBH2H (g cm−3 cm2 m) 30 0.0698 (±0.0159) 0.969 (±0.0419) 0.950*","locator":"Table 5"},{"field":"fit.n_trees","quote":"Thirty sample trees of Avicennia officinalis (Ao) and Sonneratia apetala (Sa) were harvested","locator":"Biomass measurement section"},{"field":"fit.dbh_min_cm","quote":"Letkhokkon, Myanmar Mixed 30 5 20 AGB=0.0698(ρDBH2H)0.969 0.95","locator":"Table 6, \"This study\" mixed-species row (n, DBH range (cm) columns)"}],"check":[{"inputs":{"D":8,"H":6,"rho":0.5},"expected":11.3861,"origin":"computed","note":"computed from the Table 5 coefficients"},{"inputs":{"D":15,"H":9,"rho":0.5},"expected":57.0274,"origin":"computed","note":"computed from the Table 5 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Power-law fit; the paper states coefficients are back-transformed from the log-log OLS fit and prints no correction factor, so none is applied. Site-level model for the Letkhokkon delta mangrove (Ayeyarwady delta region), Myanmar. Wood density rho is per-tree basic density measured on trunk discs (species means: 0.557 g/cm3 Ao, 0.471 g/cm3 Sa). Mixed-species model for the two dominant species pooled (n = 30); the pooled DBH range 5–20 cm is printed in Table 6 (Ao 5.0–13.0 cm, Sa 5.1–20.0 cm per Table 2); H range of the pooled sample is 4.6–13.6 m per Table 2 but not printed as one range, so left out. The paper reports ρDBH2H as the best-fit mixed model; all six Table 5 forms are included. AGB is leaf + branch + stem (aboveground, foliage included)."},{"id":"lwin-2026-mixed-rhodh","source":"lwin-2026","name":"Avicennia officinalis + Sonneratia apetala aboveground biomass, a x^b of rho * DBH * H (Table 5)","output":{"quantity":"agb"},"expression":"0.0681 * (rho * D * H)^1.562","published":{"expression":"0.0681 * (rho * DBH * H)^1.562","units":{"DBH":"cm","H":"m","rho":"g/cm3"},"variables":{"DBH":"D","H":"H"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Avicennia officinalis and Sonneratia apetala","group":"mangrove"},"region":{"scope":"site","countries":["MM"],"place":"Letkhokkon delta mangrove, Myanmar","biomes":["tropical","mangrove"]},"stand":"natural","fit":{"n_trees":30,"dbh_min_cm":5,"dbh_max_cm":20,"r2":0.936,"method":"Power function y = a x^b fitted in SPSS Curve Estimation (OLS on log-transformed variables, then back-transformed)"},"evidence":[{"field":"expression","quote":"ρDBHH (g cm−3 cm m) 30 0.0681 (±0.0178) 1.562 (±0.0769) 0.936*","locator":"Table 5"},{"field":"fit.n_trees","quote":"Thirty sample trees of Avicennia officinalis (Ao) and Sonneratia apetala (Sa) were harvested","locator":"Biomass measurement section"},{"field":"fit.dbh_min_cm","quote":"Letkhokkon, Myanmar Mixed 30 5 20 AGB=0.0698(ρDBH2H)0.969 0.95","locator":"Table 6, \"This study\" mixed-species row (n, DBH range (cm) columns)"}],"check":[{"inputs":{"D":8,"H":6,"rho":0.5},"expected":9.7507,"origin":"computed","note":"computed from the Table 5 coefficients"},{"inputs":{"D":15,"H":9,"rho":0.5},"expected":49.0365,"origin":"computed","note":"computed from the Table 5 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Power-law fit; the paper states coefficients are back-transformed from the log-log OLS fit and prints no correction factor, so none is applied. Site-level model for the Letkhokkon delta mangrove (Ayeyarwady delta region), Myanmar. Wood density rho is per-tree basic density measured on trunk discs (species means: 0.557 g/cm3 Ao, 0.471 g/cm3 Sa). Mixed-species model for the two dominant species pooled (n = 30); the pooled DBH range 5–20 cm is printed in Table 6 (Ao 5.0–13.0 cm, Sa 5.1–20.0 cm per Table 2); H range of the pooled sample is 4.6–13.6 m per Table 2 but not printed as one range, so left out. The paper reports ρDBH2H as the best-fit mixed model; all six Table 5 forms are included. AGB is leaf + branch + stem (aboveground, foliage included)."},{"id":"lwin-2026-sa-agb","source":"lwin-2026","name":"Sonneratia apetala aboveground biomass, a x^b of DBH^2 * H (Table 4)","output":{"quantity":"agb"},"expression":"0.0229 * (D^2 * H)^1.008","published":{"expression":"0.0229 * (DBH^2 * H)^1.008","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D","H":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Sonneratia apetala","family":"Lythraceae","group":"mangrove"},"region":{"scope":"site","countries":["MM"],"place":"Letkhokkon delta mangrove, Myanmar","biomes":["tropical","mangrove"]},"stand":"natural","fit":{"n_trees":15,"dbh_min_cm":5.1,"dbh_max_cm":20,"h_min_m":4.6,"h_max_m":13.6,"r2":0.986,"method":"Power function y = a x^b fitted in SPSS Curve Estimation (OLS on log-transformed variables, then back-transformed)"},"evidence":[{"field":"expression","quote":"AGB (kg) DBH2H (cm2, m) 15 0.0229 (±0.0493×10−1) 1.008 (±0.0334) 0.986*","locator":"Table 4"},{"field":"fit.n_trees","quote":"Sa 15 5.1 20 4.6 13.6","locator":"Table 2"},{"field":"fit.dbh_min_cm","quote":"The S. apetala had a DBH range of 5.1 cm to 20.0 cm and a H range of 4.6 m to 13.6 m","locator":"Biomass measurement section"}],"check":[{"inputs":{"D":8,"H":6},"expected":9.2223,"origin":"computed","note":"computed from the Table 4 coefficients"},{"inputs":{"D":15,"H":9},"expected":49.2847,"origin":"computed","note":"computed from the Table 4 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Power-law fit; the paper states coefficients are back-transformed from the log-log OLS fit and prints no correction factor, so none is applied. Site-level model for the Letkhokkon delta mangrove (Ayeyarwady delta region), Myanmar. AGB is leaf + branch + stem (aboveground, foliage included)."},{"id":"lwin-2026-sa-branch","source":"lwin-2026","name":"Sonneratia apetala branch biomass, a x^b of DBH * H (Table 4)","output":{"quantity":"branch_biomass"},"expression":"0.00561 * (D * H)^1.507","published":{"expression":"0.00561 * (DBH * H)^1.507","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D","H":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Sonneratia apetala","family":"Lythraceae","group":"mangrove"},"region":{"scope":"site","countries":["MM"],"place":"Letkhokkon delta mangrove, Myanmar","biomes":["tropical","mangrove"]},"stand":"natural","fit":{"n_trees":15,"dbh_min_cm":5.1,"dbh_max_cm":20,"h_min_m":4.6,"h_max_m":13.6,"r2":0.925,"method":"Power function y = a x^b fitted in SPSS Curve Estimation (OLS on log-transformed variables, then back-transformed)"},"evidence":[{"field":"expression","quote":"Branch (kg) DBHH (cm, m) 15 0.0561×10−1 (±0.0287×10−1) 1.507 (±0.119) 0.925*","locator":"Table 4"},{"field":"fit.n_trees","quote":"Sa 15 5.1 20 4.6 13.6","locator":"Table 2"},{"field":"fit.dbh_min_cm","quote":"The S. apetala had a DBH range of 5.1 cm to 20.0 cm and a H range of 4.6 m to 13.6 m","locator":"Biomass measurement section"}],"check":[{"inputs":{"D":8,"H":6},"expected":1.9169,"origin":"computed","note":"computed from the Table 4 coefficients"},{"inputs":{"D":15,"H":9},"expected":9.107,"origin":"computed","note":"computed from the Table 4 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Power-law fit; the paper states coefficients are back-transformed from the log-log OLS fit and prints no correction factor, so none is applied. Site-level model for the Letkhokkon delta mangrove (Ayeyarwady delta region), Myanmar."},{"id":"lwin-2026-sa-leaf","source":"lwin-2026","name":"Sonneratia apetala leaf biomass, a x^b of rho * DBH (Table 4)","output":{"quantity":"foliage_biomass"},"expression":"0.0165 * (rho * D)^2.519","published":{"expression":"0.0165 * (rho * DBH)^2.519","units":{"DBH":"cm","rho":"g/cm3"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Sonneratia apetala","family":"Lythraceae","group":"mangrove"},"region":{"scope":"site","countries":["MM"],"place":"Letkhokkon delta mangrove, Myanmar","biomes":["tropical","mangrove"]},"stand":"natural","fit":{"n_trees":15,"dbh_min_cm":5.1,"dbh_max_cm":20,"h_min_m":4.6,"h_max_m":13.6,"r2":0.696,"method":"Power function y = a x^b fitted in SPSS Curve Estimation (OLS on log-transformed variables, then back-transformed)"},"evidence":[{"field":"expression","quote":"Leaf (kg) ρDBH (g cm−3, cm) 15 0.0165 (±0.0110) 2.519 (±0.462) 0.696*","locator":"Table 4"},{"field":"fit.n_trees","quote":"Sa 15 5.1 20 4.6 13.6","locator":"Table 2"},{"field":"fit.dbh_min_cm","quote":"The S. apetala had a DBH range of 5.1 cm to 20.0 cm and a H range of 4.6 m to 13.6 m","locator":"Biomass measurement section"}],"check":[{"inputs":{"D":8,"rho":0.5},"expected":0.5421,"origin":"computed","note":"computed from the Table 4 coefficients"},{"inputs":{"D":15,"rho":0.5},"expected":2.641,"origin":"computed","note":"computed from the Table 4 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Power-law fit; the paper states coefficients are back-transformed from the log-log OLS fit and prints no correction factor, so none is applied. Site-level model for the Letkhokkon delta mangrove (Ayeyarwady delta region), Myanmar. Wood density rho is per-tree basic density measured on trunk discs (species means: 0.557 g/cm3 Ao, 0.471 g/cm3 Sa)."},{"id":"lwin-2026-sa-stem","source":"lwin-2026","name":"Sonneratia apetala stem biomass, a x^b of DBH^2 * H (Table 4)","output":{"quantity":"stem_biomass"},"expression":"0.0125 * (D^2 * H)^1.046","published":{"expression":"0.0125 * (DBH^2 * H)^1.046","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D","H":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Sonneratia apetala","family":"Lythraceae","group":"mangrove"},"region":{"scope":"site","countries":["MM"],"place":"Letkhokkon delta mangrove, Myanmar","biomes":["tropical","mangrove"]},"stand":"natural","fit":{"n_trees":15,"dbh_min_cm":5.1,"dbh_max_cm":20,"h_min_m":4.6,"h_max_m":13.6,"r2":0.97,"method":"Power function y = a x^b fitted in SPSS Curve Estimation (OLS on log-transformed variables, then back-transformed)"},"evidence":[{"field":"expression","quote":"Stem (kg) DBH2H (cm2, m) 15 0.0125 (±0.0411×10−1) 1.046 (±0.0506) 0.970*","locator":"Table 4"},{"field":"fit.n_trees","quote":"Sa 15 5.1 20 4.6 13.6","locator":"Table 2"},{"field":"fit.dbh_min_cm","quote":"The S. apetala had a DBH range of 5.1 cm to 20.0 cm and a H range of 4.6 m to 13.6 m","locator":"Biomass measurement section"}],"check":[{"inputs":{"D":8,"H":6},"expected":6.3113,"origin":"computed","note":"computed from the Table 4 coefficients"},{"inputs":{"D":15,"H":9},"expected":35.9278,"origin":"computed","note":"computed from the Table 4 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Power-law fit; the paper states coefficients are back-transformed from the log-log OLS fit and prints no correction factor, so none is applied. Site-level model for the Letkhokkon delta mangrove (Ayeyarwady delta region), Myanmar."},{"id":"magalhaes-2015-root-system-d2h","source":"magalhaes-2015","name":"Root system dry biomass from DBH²·H (Table 4, form 6)","output":{"quantity":"bgb"},"expression":"0.007 * (D^2 * H)^1.0226","published":{"expression":"0.007 * (DBH^2 * TH)^1.0226","units":{"DBH":"cm","TH":"m"},"variables":{"DBH":"D","TH":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Androstachys johnsonii","family":"Picrodendraceae","group":"broadleaf"},"region":{"scope":"regional","countries":["MZ"],"place":"Mabote, Funhalouro, Panda, Mandlakaze and Chibuto districts, Inhambane and Gaza provinces","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":93,"dbh_min_cm":5,"dbh_max_cm":32,"h_min_m":5.69,"h_max_m":16,"r2":0.998,"method":"Weighted nonlinear least squares (nls, Gauss-Newton); r2 is the adjusted R² in Table 5; CVr = 23.1551%"},"evidence":[{"field":"expression","quote":"Root system 3 1/0.0003 × DBH3.8639 0.0070 (±0.0015)*** 1.0226 (±0.0251)***","locator":"Table 4, Root system rows, and Eq. (6; Ŷ = b0 × (DBH² × TH)^b1)"},{"field":"fit.n_trees","quote":"93 trees (DBH range 5–32 cm; TH range 5.69–16 m)","locator":"Methods, Data acquisition"},{"field":"fit.dbh_min_cm","quote":"DBH range 5–32 cm","locator":"Methods, Data acquisition"},{"field":"fit.r2","quote":"Root system 3 99.80 23.1551","locator":"Table 5, Root system"},{"field":"output","quote":"The dry weight of the root system was obtained by summing the dry weights of taproot and lateral roots (fine and coarse ones).","locator":"Methods, Data acquisition"}],"check":[{"inputs":{"D":8,"H":7},"expected":3.5999,"origin":"computed","note":"hand-computed from the Table 4 coefficients"},{"inputs":{"D":15,"H":10},"expected":18.752,"origin":"computed","note":"hand-computed from the Table 4 coefficients"},{"inputs":{"D":25,"H":13},"expected":69.708,"origin":"computed","note":"hand-computed from the Table 4 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Best independent root-system model by Adj.R² and CVr (\"model form 6, found to be the best\"). Weight function 1/(0.0003 × DBH^3.8639). The paper prints the DBH²·TH grouping as \"DBH 2 TH b1\" in the extracted text; the grouping is confirmed by b1 ≈ 1.02, as for a volume-like variable. Root system = taproot (including root collar) + lateral roots, excavated to full depth, fine roots included, dry mass at 105 C; stump above 20 cm is not part of it. Independent (not WNSUR additive) model, which the author recommends over the simultaneous ones. One of four independent root-system models in Table 4; all performed almost equally."},{"id":"magalhaes-2015-root-system-dbh-th","source":"magalhaes-2015","name":"Root system dry biomass from DBH and height (Table 4, form 5)","output":{"quantity":"bgb"},"expression":"0.0185 * D^2.199 * H^0.4699","published":{"expression":"0.0185 * DBH^2.199 * TH^0.4699","units":{"DBH":"cm","TH":"m"},"variables":{"DBH":"D","TH":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Androstachys johnsonii","family":"Picrodendraceae","group":"broadleaf"},"region":{"scope":"regional","countries":["MZ"],"place":"Mabote, Funhalouro, Panda, Mandlakaze and Chibuto districts, Inhambane and Gaza provinces","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":93,"dbh_min_cm":5,"dbh_max_cm":32,"h_min_m":5.69,"h_max_m":16,"r2":0.9978,"method":"Weighted nonlinear least squares (nls, Gauss-Newton); r2 is the adjusted R² in Table 5; CVr = 23.406%"},"evidence":[{"field":"expression","quote":"Root system 2 1/0.000008 × DBH1.7645 0.0185 (±0.0064)** 2.1990 (±0.0793)*** 0.4699 (±0.1898)*","locator":"Table 4, Root system rows, and Eq. (5; Ŷ = b0 × DBH^b1 × TH^b2)"},{"field":"fit.n_trees","quote":"93 trees (DBH range 5–32 cm; TH range 5.69–16 m)","locator":"Methods, Data acquisition"},{"field":"fit.dbh_min_cm","quote":"DBH range 5–32 cm","locator":"Methods, Data acquisition"},{"field":"fit.r2","quote":"Root system 2 99.78 23.4060","locator":"Table 5, Root system"},{"field":"output","quote":"The dry weight of the root system was obtained by summing the dry weights of taproot and lateral roots (fine and coarse ones).","locator":"Methods, Data acquisition"}],"check":[{"inputs":{"D":8,"H":7},"expected":4.4687,"origin":"computed","note":"hand-computed from the Table 4 coefficients"},{"inputs":{"D":15,"H":10},"expected":21.052,"origin":"computed","note":"hand-computed from the Table 4 coefficients"},{"inputs":{"D":25,"H":13},"expected":73.229,"origin":"computed","note":"hand-computed from the Table 4 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Ranked below the D²H form (form 6) by CVr but the author notes height improved fit only negligibly and prefers DBH-only or RCD-only models. Weight function 1/(0.000008 × DBH^1.7645). Root system = taproot (including root collar) + lateral roots, excavated to full depth, fine roots included, dry mass at 105 C; stump above 20 cm is not part of it. Independent (not WNSUR additive) model, which the author recommends over the simultaneous ones. One of four independent root-system models in Table 4; all performed almost equally."},{"id":"magalhaes-2015-root-system-dbh","source":"magalhaes-2015","name":"Root system dry biomass from DBH (Table 4, form 4)","output":{"quantity":"bgb"},"expression":"0.0405 * D^2.3402","published":{"expression":"0.0405 * DBH^2.3402","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Androstachys johnsonii","family":"Picrodendraceae","group":"broadleaf"},"region":{"scope":"regional","countries":["MZ"],"place":"Mabote, Funhalouro, Panda, Mandlakaze and Chibuto districts, Inhambane and Gaza provinces","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":93,"dbh_min_cm":5,"dbh_max_cm":32,"r2":0.9973,"method":"Weighted nonlinear least squares (nls, Gauss-Newton); r2 is the adjusted R² in Table 5; CVr = 24.6597%"},"evidence":[{"field":"expression","quote":"Root system 1 1/0.00007 × DBH4.3051 0.0405 (±0.0064)*** 2.3402 (±0.0545)***","locator":"Table 4, Root system rows, and Eq. (4; Ŷ = b0 × DBH^b1)"},{"field":"fit.n_trees","quote":"93 trees (DBH range 5–32 cm; TH range 5.69–16 m)","locator":"Methods, Data acquisition"},{"field":"fit.dbh_min_cm","quote":"DBH range 5–32 cm","locator":"Methods, Data acquisition"},{"field":"fit.r2","quote":"Root system 1 99.73 24.6597","locator":"Table 5, Root system"},{"field":"output","quote":"The dry weight of the root system was obtained by summing the dry weights of taproot and lateral roots (fine and coarse ones).","locator":"Methods, Data acquisition"}],"check":[{"inputs":{"D":8},"expected":5.2586,"origin":"computed","note":"hand-computed from the Table 4 coefficients"},{"inputs":{"D":15},"expected":22.895,"origin":"computed","note":"hand-computed from the Table 4 coefficients"},{"inputs":{"D":25},"expected":75.668,"origin":"computed","note":"hand-computed from the Table 4 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Recommended by the author as the preferred model when only DBH is available (\"models using either DBH or RCD only should be preferred\"). Weight function 1/(0.00007 × DBH^4.3051). Root system = taproot (including root collar) + lateral roots, excavated to full depth, fine roots included, dry mass at 105 C; stump above 20 cm is not part of it. Independent (not WNSUR additive) model, which the author recommends over the simultaneous ones. One of four independent root-system models in Table 4; all performed almost equally."},{"id":"magalhaes-2015-root-system-rcd","source":"magalhaes-2015","name":"Root system dry biomass from root collar diameter (Table 4, form 7)","output":{"quantity":"bgb"},"expression":"0.023 * DRC^2.4519","published":{"expression":"0.023 * RCD^2.4519","units":{"RCD":"cm"},"variables":{"RCD":"DRC"},"output_unit":"kg"},"taxon":{"level":"species","name":"Androstachys johnsonii","family":"Picrodendraceae","group":"broadleaf"},"region":{"scope":"regional","countries":["MZ"],"place":"Mabote, Funhalouro, Panda, Mandlakaze and Chibuto districts, Inhambane and Gaza provinces","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":93,"r2":0.9979,"method":"Weighted nonlinear least squares (nls, Gauss-Newton); r2 is the adjusted R² in Table 5; CVr = 28.879%"},"evidence":[{"field":"expression","quote":"Root system 4 1/0.00007 × RCD4.2484 0.0230 (±0.0042)*** 2.4519 (±0.0608)***","locator":"Table 4, Root system rows, and Eq. (7; Ŷ = b0 × RCD^b1)"},{"field":"fit.n_trees","quote":"93 trees (DBH range 5–32 cm; TH range 5.69–16 m)","locator":"Methods, Data acquisition"},{"field":"fit.r2","quote":"Root system 4 99.79 28.8790","locator":"Table 5, Root system"},{"field":"output","quote":"The dry weight of the root system was obtained by summing the dry weights of taproot and lateral roots (fine and coarse ones).","locator":"Methods, Data acquisition"}],"check":[{"inputs":{"DRC":10},"expected":6.5107,"origin":"computed","note":"hand-computed from the Table 4 coefficients"},{"inputs":{"DRC":20},"expected":35.622,"origin":"computed","note":"hand-computed from the Table 4 coefficients"},{"inputs":{"DRC":30},"expected":96.268,"origin":"computed","note":"hand-computed from the Table 4 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"For felled trees where only stump dimensions are available. RCD is the root collar diameter (mapped to DRC); the paper does not define its measurement height in the text read. Fit range quoted is the DBH range of the sample (RCD range not stated), so dbh_min/max are dropped for this equation. Weight function 1/(0.00007 × RCD^4.2484). Root system = taproot (including root collar) + lateral roots, excavated to full depth, fine roots included, dry mass at 105 C; stump above 20 cm is not part of it. Independent (not WNSUR additive) model, which the author recommends over the simultaneous ones. One of four independent root-system models in Table 4; all performed almost equally."},{"id":"manjate-2025-bspiciformis-stem-volume","source":"manjate-2025","name":"Brachystegia spiciformis stem merchantable volume from D2H","output":{"quantity":"stem_volume"},"expression":"3.32e-05 * (D^2 * H)^0.953","published":{"expression":"3.32e-05 * (DBH^2 * Ht)^0.953","units":{"DBH":"cm","Ht":"m"},"variables":{"DBH":"D","Ht":"H"},"output_unit":"m3"},"taxon":{"level":"species","name":"Brachystegia spiciformis","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MZ"],"place":"Levasflor forests, Cheringoma district, Sofala province","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":37,"dbh_min_cm":17,"dbh_max_cm":81,"h_min_m":12,"h_max_m":26,"method":"Non-linear weighted power model, Y = b0 (DBH^2 Ht)^b1 x error"},"evidence":[{"field":"expression","quote":"Y = 3.32 × 10−5 × (DBH2 × Ht)0.953","locator":"Table 4, stem merchantable wood volume under bark, Model 2"},{"field":"fit.n_trees","quote":"37 B. spiciformis trees (DBH ranging from 17 to 81cm and height ranging from 12 to 26 m)","locator":"Section 2.2"}],"check":[{"inputs":{"D":30,"H":15},"expected":0.28665,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":50,"H":20},"expected":0.99829,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Model 2 (DBH2 x Ht) was the best of the three models by AIC and BIC. Volume is merchantable wood under bark (stem or branches down to a 15 cm top diameter over bark), in m3. No correction factor is stated. Stem part only (from 15 cm diameter over bark)."},{"id":"manjate-2025-bspiciformis-total-volume","source":"manjate-2025","name":"Brachystegia spiciformis total merchantable volume from D2H","output":{"quantity":"total_volume"},"expression":"2.59e-05 * (D^2 * H)^1.008","published":{"expression":"2.59e-05 * (DBH^2 * Ht)^1.008","units":{"DBH":"cm","Ht":"m"},"variables":{"DBH":"D","Ht":"H"},"output_unit":"m3"},"taxon":{"level":"species","name":"Brachystegia spiciformis","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MZ"],"place":"Levasflor forests, Cheringoma district, Sofala province","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":37,"dbh_min_cm":17,"dbh_max_cm":81,"h_min_m":12,"h_max_m":26,"method":"Non-linear weighted power model, Y = b0 (DBH^2 Ht)^b1 x error"},"evidence":[{"field":"expression","quote":"Y = 2.59 × 10−5 × (DBH2 × Ht)1.008","locator":"Table 4, total tree merchantable wood volume under bark, Model 2"},{"field":"fit.n_trees","quote":"37 B. spiciformis trees (DBH ranging from 17 to 81cm and height ranging from 12 to 26 m)","locator":"Section 2.2"}],"check":[{"inputs":{"D":30,"H":15},"expected":0.37729,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":50,"H":20},"expected":1.4121,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Model 2 (DBH2 x Ht) was the best of the three models by AIC and BIC. Volume is merchantable wood under bark (stem or branches down to a 15 cm top diameter over bark), in m3. No correction factor is stated. Total includes stem and large branches."},{"id":"manjate-2025-jglobiflora-stem-volume","source":"manjate-2025","name":"Julbernardia globiflora stem merchantable volume from D2H","output":{"quantity":"stem_volume"},"expression":"8.34e-06 * (D^2 * H)^1.147","published":{"expression":"8.34e-06 * (DBH^2 * Ht)^1.147","units":{"DBH":"cm","Ht":"m"},"variables":{"DBH":"D","Ht":"H"},"output_unit":"m3"},"taxon":{"level":"species","name":"Julbernardia globiflora","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MZ"],"place":"Levasflor forests, Cheringoma district, Sofala province","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":23,"dbh_min_cm":14,"dbh_max_cm":62,"h_min_m":12,"h_max_m":23,"method":"Non-linear weighted power model, Y = b0 (DBH^2 Ht)^b1 x error"},"evidence":[{"field":"expression","quote":"Y = 8.34 × 10−6 × (DBH2 × Ht)1.1470","locator":"Table 5, stem merchantable wood volume under bark, Model 2"},{"field":"fit.n_trees","quote":"23 J. globiflora trees (DBH ranging from 14 to 62 cm and height ranging from 12 to 23 m)","locator":"Section 2.2"}],"check":[{"inputs":{"D":30,"H":15},"expected":0.45568,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":50,"H":20},"expected":2.0459,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Model 2 (DBH2 x Ht) was the best of the three models by AIC and BIC. Volume is merchantable wood under bark (stem or branches down to a 15 cm top diameter over bark), in m3. No correction factor is stated. Exponent printed as 1.1470 in the table; entered as 1.147. Stem part only."},{"id":"manjate-2025-jglobiflora-total-volume","source":"manjate-2025","name":"Julbernardia globiflora total merchantable volume from D2H","output":{"quantity":"total_volume"},"expression":"6.98e-06 * (D^2 * H)^1.196","published":{"expression":"6.98e-06 * (DBH^2 * Ht)^1.196","units":{"DBH":"cm","Ht":"m"},"variables":{"DBH":"D","Ht":"H"},"output_unit":"m3"},"taxon":{"level":"species","name":"Julbernardia globiflora","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MZ"],"place":"Levasflor forests, Cheringoma district, Sofala province","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":23,"dbh_min_cm":14,"dbh_max_cm":62,"h_min_m":12,"h_max_m":23,"method":"Non-linear weighted power model, Y = b0 (DBH^2 Ht)^b1 x error"},"evidence":[{"field":"expression","quote":"Y = 6.98 × 10−6 × (DBH2 × Ht)1.196","locator":"Table 5, total tree merchantable wood volume under bark, Model 2"},{"field":"fit.n_trees","quote":"23 J. globiflora trees (DBH ranging from 14 to 62 cm and height ranging from 12 to 23 m)","locator":"Section 2.2"}],"check":[{"inputs":{"D":30,"H":15},"expected":0.60776,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":50,"H":20},"expected":2.9095,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Model 2 (DBH2 x Ht) was the best of the three models by AIC and BIC. Volume is merchantable wood under bark (stem or branches down to a 15 cm top diameter over bark), in m3. No correction factor is stated. Total includes stem and large branches."},{"id":"manuri-2016-d1","source":"manuri-2016","name":"Kalimantan dipterocarp forest AGB, DBH only (D1)","output":{"quantity":"agb"},"expression":"0.125 * D^2.533","published":{"expression":"0.125 * D^2.533","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Mixed species of dipterocarp forest (80 species)","group":"broadleaf"},"region":{"scope":"regional","countries":["ID"],"place":"Dipterocarp forests of East, Central and West Kalimantan (Malinau, Bulungan, Kapuas Hulu, Seruyan), Indonesia","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":108,"dbh_max_cm":172,"r2":0.821,"method":"OLS on ln-transformed data, back-transformed (REst correction); adjusted r2 on kg scale"},"evidence":[{"field":"expression","quote":"D1 0.125 D^2.533","locator":"Table 2"},{"field":"fit.n_trees","quote":"108 trees","locator":"Abstract"}],"check":[{"inputs":{"D":30},"expected":689.38,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":80},"expected":8268.69,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Fitted by OLS on ln data; Table 2 reports fit after back-transformation with the REst ratio-estimator correction. The paper does not say explicitly whether that factor is folded into the printed power-form coefficient; used as printed. D at 1.3 m or 20 cm above buttress."},{"id":"manuri-2016-dg8","source":"manuri-2016","name":"Kalimantan dipterocarp forest AGB, DBH and wood density (DG8)","output":{"quantity":"agb"},"expression":"0.277 * (D^2 * rho)^1.238","published":{"expression":"0.277 * (D^2 * G)^1.238","units":{"D":"cm","G":"g/cm3"},"variables":{"G":"rho"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Mixed species of dipterocarp forest (80 species)","group":"broadleaf"},"region":{"scope":"regional","countries":["ID"],"place":"Dipterocarp forests of East, Central and West Kalimantan (Malinau, Bulungan, Kapuas Hulu, Seruyan), Indonesia","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":108,"dbh_max_cm":172,"r2":0.924,"method":"OLS on ln-transformed data, back-transformed (REst correction); adjusted r2 on kg scale"},"evidence":[{"field":"expression","quote":"DG8 0.277 (D²G)^1.238","locator":"Table 2"},{"field":"fit.n_trees","quote":"108 trees","locator":"Abstract"}],"check":[{"inputs":{"D":30,"rho":0.6},"expected":668.63,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":80,"rho":0.6},"expected":7583.71,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Fitted by OLS on ln data; Table 2 reports fit after back-transformation with the REst ratio-estimator correction. The paper does not say explicitly whether that factor is folded into the printed power-form coefficient; used as printed. D at 1.3 m or 20 cm above buttress. G (wood density) in g/cm3."},{"id":"manuri-2016-dgh9","source":"manuri-2016","name":"Kalimantan dipterocarp forest AGB, DBH, wood density and height (DGH9)","output":{"quantity":"agb"},"expression":"0.071 * (D^2 * rho * H)^0.973","published":{"expression":"0.071 * (D^2 * G * H)^0.973","units":{"D":"cm","G":"g/cm3","H":"m"},"variables":{"G":"rho"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Mixed species of dipterocarp forest (80 species)","group":"broadleaf"},"region":{"scope":"regional","countries":["ID"],"place":"Dipterocarp forests of East, Central and West Kalimantan (Malinau, Bulungan, Kapuas Hulu, Seruyan), Indonesia","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":108,"dbh_max_cm":172,"r2":0.909,"method":"OLS on ln-transformed data, back-transformed (REst correction); adjusted r2 on kg scale"},"evidence":[{"field":"expression","quote":"DGH9 0.071 (D²GH)^0.973","locator":"Table 2"},{"field":"fit.n_trees","quote":"108 trees","locator":"Abstract"}],"check":[{"inputs":{"D":30,"rho":0.6,"H":25},"expected":741.44,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":80,"rho":0.6,"H":40},"expected":7899.82,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Fitted by OLS on ln data; Table 2 reports fit after back-transformation with the REst ratio-estimator correction. The paper does not say explicitly whether that factor is folded into the printed power-form coefficient; used as printed. D at 1.3 m or 20 cm above buttress. G (wood density) in g/cm3."},{"id":"manuri-2016-dh3","source":"manuri-2016","name":"Kalimantan dipterocarp forest AGB, DBH and height (DH3)","output":{"quantity":"agb"},"expression":"0.068 * D^2.268 * H^0.483","published":{"expression":"0.068 * D^2.268 * H^0.483","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Mixed species of dipterocarp forest (80 species)","group":"broadleaf"},"region":{"scope":"regional","countries":["ID"],"place":"Dipterocarp forests of East, Central and West Kalimantan (Malinau, Bulungan, Kapuas Hulu, Seruyan), Indonesia","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":108,"dbh_max_cm":172,"r2":0.813,"method":"OLS on ln-transformed data, back-transformed (REst correction); adjusted r2 on kg scale"},"evidence":[{"field":"expression","quote":"DH3 0.068 D^2.268 H^0.483","locator":"Table 2"},{"field":"fit.n_trees","quote":"108 trees","locator":"Abstract"}],"check":[{"inputs":{"D":30,"H":25},"expected":720.82,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":80,"H":40},"expected":8365.89,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Fitted by OLS on ln data; Table 2 reports fit after back-transformation with the REst ratio-estimator correction. The paper does not say explicitly whether that factor is folded into the printed power-form coefficient; used as printed. D at 1.3 m or 20 cm above buttress."},{"id":"manyanda-2019-agb-lindi","source":"manyanda-2019","name":"Miombo Lindi AGB from stump diameter","output":{"quantity":"agb","excludes":["foliage"]},"expression":"0.02821 * D30^2.7508","published":{"expression":"0.02821 * SD^2.7508","units":{"SD":"cm"},"variables":{"SD":"D30"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Miombo woodland trees (mixed species)","group":"broadleaf"},"region":{"scope":"site","countries":["TZ"],"place":"Angai Villages Forest Reserve, Lindi, Tanzania","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":47,"r2":0.94,"method":"non-linear mixed-effects regression (nlme), power model"},"evidence":[{"field":"expression","quote":"Lindi = a × (SD) b 0.02821 2.7508 552.8 482.84 42.0 -9.7 0.94","locator":"Table 5, selected model (1)"},{"field":"published.units","quote":"SD is stump diameter (cm)","locator":"Section 2.3.4"},{"field":"fit.n_trees","quote":"AGB and BGB models were developed from 127 and 57 sample trees, respectively","locator":"Abstract (volume: 114 trees)"},{"field":"fit.n_trees","quote":"AGB Manyara 40 … Lindi 47 … Tabora 40","locator":"Table 2"}],"check":[{"inputs":{"D30":30},"expected":326.34,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D30":60},"expected":2196.6,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Stump diameter (SD) is measured over bark just below the felling cut, at least 30 cm above ground (higher when the stump is irregular), so it is mapped to D30 as the nearest canonical variable. Form Y = a × SD^b is the first (non-linear mixed-effects, nlme) model form; the paper selected it as best in every case shown here, and the printed Table row shows it. AGB counts only biomass above the SD measurement point (stump excluded) and leaves were excluded from twigs, hence excludes foliage. The three model forms (1)-(3) are typeset equations; the form of (1) is read from the table row \"= a × (SD) b\". The fit used nlme with random effects; coefficients are the fixed effects as printed. Table 2 gives SD ranges, not DBH, so no dbh range is stored."},{"id":"manyanda-2019-agb-manyara","source":"manyanda-2019","name":"Miombo Manyara AGB from stump diameter","output":{"quantity":"agb","excludes":["foliage"]},"expression":"0.0605 * D30^2.549","published":{"expression":"0.0605 * SD^2.549","units":{"SD":"cm"},"variables":{"SD":"D30"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Miombo woodland trees (mixed species)","group":"broadleaf"},"region":{"scope":"site","countries":["TZ"],"place":"Ayasanda and Duru Haitemba, Manyara, Tanzania","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":40,"r2":0.88,"method":"non-linear mixed-effects regression (nlme), power model"},"evidence":[{"field":"expression","quote":"Manyara = a × (SD) b 0.0605 2.5490 511.7 649.61 44.4 9.3 0.88","locator":"Table 5, selected model (1)"},{"field":"published.units","quote":"SD is stump diameter (cm)","locator":"Section 2.3.4"},{"field":"fit.n_trees","quote":"AGB and BGB models were developed from 127 and 57 sample trees, respectively","locator":"Abstract (volume: 114 trees)"},{"field":"fit.n_trees","quote":"AGB Manyara 40 … Lindi 47 … Tabora 40","locator":"Table 2"}],"check":[{"inputs":{"D30":30},"expected":352.32,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D30":60},"expected":2061.9,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Stump diameter (SD) is measured over bark just below the felling cut, at least 30 cm above ground (higher when the stump is irregular), so it is mapped to D30 as the nearest canonical variable. Form Y = a × SD^b is the first (non-linear mixed-effects, nlme) model form; the paper selected it as best in every case shown here, and the printed Table row shows it. AGB counts only biomass above the SD measurement point (stump excluded) and leaves were excluded from twigs, hence excludes foliage. The three model forms (1)-(3) are typeset equations; the form of (1) is read from the table row \"= a × (SD) b\". The fit used nlme with random effects; coefficients are the fixed effects as printed. Table 2 gives SD ranges, not DBH, so no dbh range is stored."},{"id":"manyanda-2019-agb-regional","source":"manyanda-2019","name":"Miombo Regional AGB from stump diameter","output":{"quantity":"agb","excludes":["foliage"]},"expression":"0.03785 * D30^2.67","published":{"expression":"0.03785 * SD^2.67","units":{"SD":"cm"},"variables":{"SD":"D30"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Miombo woodland trees (mixed species)","group":"broadleaf"},"region":{"scope":"regional","countries":["TZ"],"place":"Miombo woodlands of Manyara, Lindi and Tabora, Tanzania","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":127,"r2":0.92,"method":"non-linear mixed-effects regression (nlme), power model"},"evidence":[{"field":"expression","quote":"Regional = a × (SD) b 0.03785 2.6700 1541.1 551.00 43.8 -7.9 0.92","locator":"Table 5, selected model (1)"},{"field":"published.units","quote":"SD is stump diameter (cm)","locator":"Section 2.3.4"},{"field":"fit.n_trees","quote":"AGB and BGB models were developed from 127 and 57 sample trees, respectively","locator":"Abstract (volume: 114 trees)"},{"field":"fit.n_trees","quote":"AGB Manyara 40 … Lindi 47 … Tabora 40","locator":"Table 2"}],"check":[{"inputs":{"D30":30},"expected":332.64,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D30":60},"expected":2117,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Stump diameter (SD) is measured over bark just below the felling cut, at least 30 cm above ground (higher when the stump is irregular), so it is mapped to D30 as the nearest canonical variable. Form Y = a × SD^b is the first (non-linear mixed-effects, nlme) model form; the paper selected it as best in every case shown here, and the printed Table row shows it. AGB counts only biomass above the SD measurement point (stump excluded) and leaves were excluded from twigs, hence excludes foliage. The three model forms (1)-(3) are typeset equations; the form of (1) is read from the table row \"= a × (SD) b\". The fit used nlme with random effects; coefficients are the fixed effects as printed. Table 2 gives SD ranges, not DBH, so no dbh range is stored."},{"id":"manyanda-2019-agb-tabora","source":"manyanda-2019","name":"Miombo Tabora AGB from stump diameter","output":{"quantity":"agb","excludes":["foliage"]},"expression":"0.0391 * D30^2.6491","published":{"expression":"0.0391 * SD^2.6491","units":{"SD":"cm"},"variables":{"SD":"D30"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Miombo woodland trees (mixed species)","group":"broadleaf"},"region":{"scope":"site","countries":["TZ"],"place":"Nyahua Forest Reserve, Tabora, Tanzania","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":40,"r2":0.925,"method":"non-linear mixed-effects regression (nlme), power model"},"evidence":[{"field":"expression","quote":"Tabora = a × (SD) b 0.0391 2.6491 485.9 483.22 42.9 -11.1 0.925","locator":"Table 5, selected model (1)"},{"field":"published.units","quote":"SD is stump diameter (cm)","locator":"Section 2.3.4"},{"field":"fit.n_trees","quote":"AGB and BGB models were developed from 127 and 57 sample trees, respectively","locator":"Abstract (volume: 114 trees)"},{"field":"fit.n_trees","quote":"AGB Manyara 40 … Lindi 47 … Tabora 40","locator":"Table 2"}],"check":[{"inputs":{"D30":30},"expected":320.05,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D30":60},"expected":2007.6,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Stump diameter (SD) is measured over bark just below the felling cut, at least 30 cm above ground (higher when the stump is irregular), so it is mapped to D30 as the nearest canonical variable. Form Y = a × SD^b is the first (non-linear mixed-effects, nlme) model form; the paper selected it as best in every case shown here, and the printed Table row shows it. AGB counts only biomass above the SD measurement point (stump excluded) and leaves were excluded from twigs, hence excludes foliage. The three model forms (1)-(3) are typeset equations; the form of (1) is read from the table row \"= a × (SD) b\". The fit used nlme with random effects; coefficients are the fixed effects as printed. Table 2 gives SD ranges, not DBH, so no dbh range is stored."},{"id":"manyanda-2019-bgb-regional","source":"manyanda-2019","name":"Miombo Regional BGB from stump diameter","output":{"quantity":"bgb"},"expression":"0.1056 * D30^2.1035","published":{"expression":"0.1056 * SD^2.1035","units":{"SD":"cm"},"variables":{"SD":"D30"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Miombo woodland trees (mixed species)","group":"broadleaf"},"region":{"scope":"regional","countries":["TZ"],"place":"Miombo woodlands of Manyara, Lindi and Tabora, Tanzania","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":57,"r2":0.86,"method":"non-linear mixed-effects regression (nlme), power model"},"evidence":[{"field":"expression","quote":"Regional = a × (SD) b 0.1056 2.1035 623.5 154.01 46.5 -12.2 0.86","locator":"Table 6, selected model (1)"},{"field":"published.units","quote":"SD is stump diameter (cm)","locator":"Section 2.3.4"},{"field":"fit.n_trees","quote":"AGB and BGB models were developed from 127 and 57 sample trees, respectively","locator":"Abstract (volume: 114 trees)"}],"check":[{"inputs":{"D30":30},"expected":135.14,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D30":60},"expected":580.77,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Stump diameter (SD) is measured over bark just below the felling cut, at least 30 cm above ground (higher when the stump is irregular), so it is mapped to D30 as the nearest canonical variable. Form Y = a × SD^b is the first (non-linear mixed-effects, nlme) model form; the paper selected it as best in every case shown here, and the printed Table row shows it. Manyara BGB is not included because the paper selected a different (quadratic) form there. The three model forms (1)-(3) are typeset equations; the form of (1) is read from the table row \"= a × (SD) b\". The fit used nlme with random effects; coefficients are the fixed effects as printed. Table 2 gives SD ranges, not DBH, so no dbh range is stored."},{"id":"manyanda-2019-volume-regional","source":"manyanda-2019","name":"Miombo Regional total volume from stump diameter","output":{"quantity":"total_volume"},"expression":"3.2e-05 * D30^2.7992","published":{"expression":"3.2e-05 * SD^2.7992","units":{"SD":"cm"},"variables":{"SD":"D30"},"output_unit":"m3"},"taxon":{"level":"mixed","name":"Miombo woodland trees (mixed species)","group":"broadleaf"},"region":{"scope":"regional","countries":["TZ"],"place":"Miombo woodlands of Manyara, Lindi and Tabora, Tanzania","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":114,"r2":0.709,"method":"non-linear mixed-effects regression (nlme), power model"},"evidence":[{"field":"expression","quote":"Regional = a × (SD) b 0.000032 2.7992 -90.16 1.01 71.7 -10.5 0.709","locator":"Table 4, selected model (1)"},{"field":"published.units","quote":"SD is stump diameter (cm)","locator":"Section 2.3.4"},{"field":"fit.n_trees","quote":"AGB and BGB models were developed from 127 and 57 sample trees, respectively","locator":"Abstract (volume: 114 trees)"}],"check":[{"inputs":{"D30":30},"expected":0.43642,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D30":60},"expected":3.0377,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Stump diameter (SD) is measured over bark just below the felling cut, at least 30 cm above ground (higher when the stump is irregular), so it is mapped to D30 as the nearest canonical variable. Form Y = a × SD^b is the first (non-linear mixed-effects, nlme) model form; the paper selected it as best in every case shown here, and the printed Table row shows it. Volume is of merchantable stem plus branches (to 2.5 cm top), above the SD point. The three model forms (1)-(3) are typeset equations; the form of (1) is read from the table row \"= a × (SD) b\". The fit used nlme with random effects; coefficients are the fixed effects as printed. Table 2 gives SD ranges, not DBH, so no dbh range is stored."},{"id":"marden-2025-coprosma-agb","source":"marden-2025","name":"Coprosma robusta, NZ, total aboveground biomass from RCD (Table 3)","output":{"quantity":"agb"},"expression":"0.407 * exp(0.298 * DRC)","published":{"expression":"407 * exp(0.0298 * RCD)","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"g"},"taxon":{"level":"species","name":"Coprosma robusta","family":"Rubiaceae","group":"shrub"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.89,"method":"nonlinear least squares, exponential (y = a e^(bx))"},"evidence":[{"field":"expression","quote":"y = 407e0.0298x","locator":"Table 3, Total above-ground biomass, Coprosma robusta"},{"field":"fit.r2","quote":"0.89","locator":"Table 3, Total above-ground biomass, Coprosma robusta, r² column"}],"check":[{"inputs":{"DRC":2},"expected":0.73864,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":2.4328,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":35.554,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations). r² for exponential fits is a pseudo r²."},{"id":"marden-2025-coprosma-bgb","source":"marden-2025","name":"Coprosma robusta, NZ, belowground biomass from RCD (Table 3)","output":{"quantity":"bgb"},"expression":"0.0857 * exp(0.333 * DRC)","published":{"expression":"85.7 * exp(0.0333 * RCD)","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"g"},"taxon":{"level":"species","name":"Coprosma robusta","family":"Rubiaceae","group":"shrub"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.947,"method":"nonlinear least squares, exponential (y = a e^(bx))"},"evidence":[{"field":"expression","quote":"y = 85.7e0.0333x","locator":"Table 3, Total below-ground biomass, Coprosma robusta"},{"field":"fit.r2","quote":"0.947","locator":"Table 3, Total below-ground biomass, Coprosma robusta, r² column"}],"check":[{"inputs":{"DRC":2},"expected":0.16681,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":0.63198,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":12.656,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations). r² for exponential fits is a pseudo r²."},{"id":"marden-2025-coprosma-h","source":"marden-2025","name":"Coprosma robusta, NZ, height from RCD (Table 3)","output":{"quantity":"height"},"expression":"0.453 * ln(10 * DRC)","published":{"expression":"0.453 * ln(RCD)","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"m"},"taxon":{"level":"species","name":"Coprosma robusta","family":"Rubiaceae","group":"shrub"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.945,"method":"ordinary least squares, natural log-linear through origin (y = m ln x)"},"evidence":[{"field":"expression","quote":"y = 0.453ln(x)","locator":"Table 3, Height, Coprosma robusta"},{"field":"fit.r2","quote":"0.945","locator":"Table 3, Height, Coprosma robusta, r² column"}],"check":[{"inputs":{"DRC":2},"expected":1.3571,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":1.8547,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":2.2698,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations)."},{"id":"marden-2025-coprosma-total","source":"marden-2025","name":"Coprosma robusta, NZ, whole-plant biomass from RCD (Table 6)","output":{"quantity":"total_biomass"},"expression":"0.491 * exp(0.306 * DRC)","published":{"expression":"491 * exp(0.0306 * RCD)","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"g"},"taxon":{"level":"species","name":"Coprosma robusta","family":"Rubiaceae","group":"shrub"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.92,"method":"nonlinear least squares, exponential (y = a e^(bx))"},"evidence":[{"field":"expression","quote":"y = 491e0.0306x","locator":"Table 6, Total biomass, Coprosma robusta"},{"field":"fit.r2","quote":"0.92","locator":"Table 6, Total biomass, Coprosma robusta, r² column"}],"check":[{"inputs":{"DRC":2},"expected":0.90546,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":3.0793,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":48.361,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations). r² for exponential fits is a pseudo r²."},{"id":"marden-2025-cordyline-agb","source":"marden-2025","name":"Cordyline australis, NZ, total aboveground biomass from RCD (Table 3)","output":{"quantity":"agb"},"expression":"0.65 * exp(0.212 * DRC)","published":{"expression":"650 * exp(0.0212 * RCD)","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"g"},"taxon":{"level":"species","name":"Cordyline australis","family":"Asparagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.877,"method":"nonlinear least squares, exponential (y = a e^(bx))"},"evidence":[{"field":"expression","quote":"y = 650e0.0212x","locator":"Table 3, Total above-ground biomass, Cordyline australis"},{"field":"fit.r2","quote":"0.877","locator":"Table 3, Total above-ground biomass, Cordyline australis, r² column"}],"check":[{"inputs":{"DRC":2},"expected":0.99324,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":2.3192,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":15.63,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations). r² for exponential fits is a pseudo r²."},{"id":"marden-2025-cordyline-bgb","source":"marden-2025","name":"Cordyline australis, NZ, belowground biomass from RCD (Table 3)","output":{"quantity":"bgb"},"expression":"0.0994 * exp(0.253 * DRC)","published":{"expression":"99.4 * exp(0.0253 * RCD)","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"g"},"taxon":{"level":"species","name":"Cordyline australis","family":"Asparagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.912,"method":"nonlinear least squares, exponential (y = a e^(bx))"},"evidence":[{"field":"expression","quote":"y = 99.4e0.0253x","locator":"Table 3, Total below-ground biomass, Cordyline australis"},{"field":"fit.r2","quote":"0.912","locator":"Table 3, Total below-ground biomass, Cordyline australis, r² column"}],"check":[{"inputs":{"DRC":2},"expected":0.16487,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":0.45357,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":4.4211,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations). r² for exponential fits is a pseudo r²."},{"id":"marden-2025-cordyline-h","source":"marden-2025","name":"Cordyline australis, NZ, height from RCD (Table 3)","output":{"quantity":"height"},"expression":"0.247 * DRC","published":{"expression":"0.0247 * RCD","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"m"},"taxon":{"level":"species","name":"Cordyline australis","family":"Asparagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.965,"method":"ordinary least squares, linear through origin (y = mx)"},"evidence":[{"field":"expression","quote":"y = 0.0247x","locator":"Table 3, Height, Cordyline australis"},{"field":"fit.r2","quote":"0.965","locator":"Table 3, Height, Cordyline australis, r² column"}],"check":[{"inputs":{"DRC":2},"expected":0.494,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":1.482,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":3.705,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations)."},{"id":"marden-2025-cordyline-total","source":"marden-2025","name":"Cordyline australis, NZ, whole-plant biomass from RCD (Table 6)","output":{"quantity":"total_biomass"},"expression":"0.75 * exp(0.219 * DRC)","published":{"expression":"750 * exp(0.0219 * RCD)","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"g"},"taxon":{"level":"species","name":"Cordyline australis","family":"Asparagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.9,"method":"nonlinear least squares, exponential (y = a e^(bx))"},"evidence":[{"field":"expression","quote":"y = 750e0.0219x","locator":"Table 6, Total biomass, Cordyline australis"},{"field":"fit.r2","quote":"0.9","locator":"Table 6, Total biomass, Cordyline australis, r² column"}],"check":[{"inputs":{"DRC":2},"expected":1.1622,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":2.7908,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":20.032,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations). r² for exponential fits is a pseudo r²."},{"id":"marden-2025-coriaria-agb","source":"marden-2025","name":"Coriaria arborea, NZ, total aboveground biomass from RCD (Table 3)","output":{"quantity":"agb"},"expression":"0.294 * DRC","published":{"expression":"29.4 * RCD","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"g"},"taxon":{"level":"species","name":"Coriaria arborea","family":"Coriariaceae","group":"shrub"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.789,"method":"ordinary least squares, linear through origin (y = mx)"},"evidence":[{"field":"expression","quote":"y = 29.4x","locator":"Table 3, Total above-ground biomass, Coriaria arborea"},{"field":"fit.r2","quote":"0.789","locator":"Table 3, Total above-ground biomass, Coriaria arborea, r² column"}],"check":[{"inputs":{"DRC":2},"expected":0.588,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":1.764,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":4.41,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations)."},{"id":"marden-2025-coriaria-bgb","source":"marden-2025","name":"Coriaria arborea, NZ, belowground biomass from RCD (Table 3)","output":{"quantity":"bgb"},"expression":"0.332 * exp(0.0615 * DRC)","published":{"expression":"332 * exp(0.00615 * RCD)","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"g"},"taxon":{"level":"species","name":"Coriaria arborea","family":"Coriariaceae","group":"shrub"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.861,"method":"nonlinear least squares, exponential (y = a e^(bx))"},"evidence":[{"field":"expression","quote":"y = 332e0.00615x","locator":"Table 3, Total below-ground biomass, Coriaria arborea"},{"field":"fit.r2","quote":"0.861","locator":"Table 3, Total below-ground biomass, Coriaria arborea, r² column"}],"check":[{"inputs":{"DRC":2},"expected":0.37545,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":0.48017,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":0.83517,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations). r² for exponential fits is a pseudo r²."},{"id":"marden-2025-coriaria-h","source":"marden-2025","name":"Coriaria arborea, NZ, height from RCD (Table 3)","output":{"quantity":"height"},"expression":"0.38 * ln(10 * DRC)","published":{"expression":"0.38 * ln(RCD)","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"m"},"taxon":{"level":"species","name":"Coriaria arborea","family":"Coriariaceae","group":"shrub"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.901,"method":"ordinary least squares, natural log-linear through origin (y = m ln x)"},"evidence":[{"field":"expression","quote":"y = 0.38ln(x)","locator":"Table 3, Height, Coriaria arborea"},{"field":"fit.r2","quote":"0.901","locator":"Table 3, Height, Coriaria arborea, r² column"}],"check":[{"inputs":{"DRC":2},"expected":1.1384,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":1.5559,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":1.904,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations)."},{"id":"marden-2025-coriaria-total","source":"marden-2025","name":"Coriaria arborea, NZ, whole-plant biomass from RCD (Table 6)","output":{"quantity":"total_biomass"},"expression":"0.394 * DRC","published":{"expression":"39.4 * RCD","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"g"},"taxon":{"level":"species","name":"Coriaria arborea","family":"Coriariaceae","group":"shrub"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.82,"method":"ordinary least squares, linear through origin (y = mx)"},"evidence":[{"field":"expression","quote":"y = 39.4x","locator":"Table 6, Total biomass, Coriaria arborea"},{"field":"fit.r2","quote":"0.82","locator":"Table 6, Total biomass, Coriaria arborea, r² column"}],"check":[{"inputs":{"DRC":2},"expected":0.788,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":2.364,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":5.91,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations)."},{"id":"marden-2025-hoheria-agb","source":"marden-2025","name":"Hoheria populnea, NZ, total aboveground biomass from RCD (Table 3)","output":{"quantity":"agb"},"expression":"0.322 * exp(0.348 * DRC)","published":{"expression":"322 * exp(0.0348 * RCD)","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"g"},"taxon":{"level":"species","name":"Hoheria populnea","family":"Malvaceae","group":"broadleaf"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.858,"method":"nonlinear least squares, exponential (y = a e^(bx))"},"evidence":[{"field":"expression","quote":"y = 322e0.0348x","locator":"Table 3, Total above-ground biomass, Hoheria populnea"},{"field":"fit.r2","quote":"0.858","locator":"Table 3, Total above-ground biomass, Hoheria populnea, r² column"}],"check":[{"inputs":{"DRC":2},"expected":0.64584,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":2.5981,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":59.549,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations). r² for exponential fits is a pseudo r²."},{"id":"marden-2025-hoheria-bgb","source":"marden-2025","name":"Hoheria populnea, NZ, belowground biomass from RCD (Table 3)","output":{"quantity":"bgb"},"expression":"0.11 * exp(0.333 * DRC)","published":{"expression":"110 * exp(0.0333 * RCD)","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"g"},"taxon":{"level":"species","name":"Hoheria populnea","family":"Malvaceae","group":"broadleaf"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.796,"method":"nonlinear least squares, exponential (y = a e^(bx))"},"evidence":[{"field":"expression","quote":"y = 110e0.0333x","locator":"Table 3, Total below-ground biomass, Hoheria populnea"},{"field":"fit.r2","quote":"0.796","locator":"Table 3, Total below-ground biomass, Hoheria populnea, r² column"}],"check":[{"inputs":{"DRC":2},"expected":0.21411,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":0.81117,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":16.244,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations). r² for exponential fits is a pseudo r²."},{"id":"marden-2025-hoheria-h","source":"marden-2025","name":"Hoheria populnea, NZ, height from RCD (Table 3)","output":{"quantity":"height"},"expression":"0.571 * DRC","published":{"expression":"0.0571 * RCD","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"m"},"taxon":{"level":"species","name":"Hoheria populnea","family":"Malvaceae","group":"broadleaf"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.904,"method":"ordinary least squares, linear through origin (y = mx)"},"evidence":[{"field":"expression","quote":"y = 0.0571x","locator":"Table 3, Height, Hoheria populnea"},{"field":"fit.r2","quote":"0.904","locator":"Table 3, Height, Hoheria populnea, r² column"}],"check":[{"inputs":{"DRC":2},"expected":1.142,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":3.426,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":8.565,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations)."},{"id":"marden-2025-hoheria-total","source":"marden-2025","name":"Hoheria populnea, NZ, whole-plant biomass from RCD (Table 6)","output":{"quantity":"total_biomass"},"expression":"0.433 * exp(0.344 * DRC)","published":{"expression":"433 * exp(0.0344 * RCD)","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"g"},"taxon":{"level":"species","name":"Hoheria populnea","family":"Malvaceae","group":"broadleaf"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.85,"method":"nonlinear least squares, exponential (y = a e^(bx))"},"evidence":[{"field":"expression","quote":"y = 433e0.0344x","locator":"Table 6, Total biomass, Hoheria populnea"},{"field":"fit.r2","quote":"0.85","locator":"Table 6, Total biomass, Hoheria populnea, r² column"}],"check":[{"inputs":{"DRC":2},"expected":0.86155,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":3.4109,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":75.413,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations). r² for exponential fits is a pseudo r²."},{"id":"marden-2025-knightia-agb","source":"marden-2025","name":"Knightia excelsa, NZ, total aboveground biomass from RCD (Table 3)","output":{"quantity":"agb"},"expression":"0.0637 * exp(0.526 * DRC)","published":{"expression":"63.7 * exp(0.0526 * RCD)","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"g"},"taxon":{"level":"species","name":"Knightia excelsa","family":"Proteaceae","group":"broadleaf"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.799,"method":"nonlinear least squares, exponential (y = a e^(bx))"},"evidence":[{"field":"expression","quote":"y = 63.7e0.0526x","locator":"Table 3, Total above-ground biomass, Knightia excelsa"},{"field":"fit.r2","quote":"0.799","locator":"Table 3, Total above-ground biomass, Knightia excelsa, r² column"}],"check":[{"inputs":{"DRC":2},"expected":0.1824,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":1.4955,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":170.11,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations). r² for exponential fits is a pseudo r²."},{"id":"marden-2025-knightia-bgb","source":"marden-2025","name":"Knightia excelsa, NZ, belowground biomass from RCD (Table 3)","output":{"quantity":"bgb"},"expression":"0.0213 * exp(0.5 * DRC)","published":{"expression":"21.3 * exp(0.05 * RCD)","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"g"},"taxon":{"level":"species","name":"Knightia excelsa","family":"Proteaceae","group":"broadleaf"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.758,"method":"nonlinear least squares, exponential (y = a e^(bx))"},"evidence":[{"field":"expression","quote":"y = 21.3e0.05x","locator":"Table 3, Total below-ground biomass, Knightia excelsa"},{"field":"fit.r2","quote":"0.758","locator":"Table 3, Total below-ground biomass, Knightia excelsa, r² column"}],"check":[{"inputs":{"DRC":2},"expected":0.057899,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":0.42782,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":38.511,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations). r² for exponential fits is a pseudo r²."},{"id":"marden-2025-knightia-h","source":"marden-2025","name":"Knightia excelsa, NZ, height from RCD (Table 3)","output":{"quantity":"height"},"expression":"0.513 * DRC","published":{"expression":"0.0513 * RCD","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"m"},"taxon":{"level":"species","name":"Knightia excelsa","family":"Proteaceae","group":"broadleaf"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.936,"method":"ordinary least squares, linear through origin (y = mx)"},"evidence":[{"field":"expression","quote":"y = 0.0513x","locator":"Table 3, Height, Knightia excelsa"},{"field":"fit.r2","quote":"0.936","locator":"Table 3, Height, Knightia excelsa, r² column"}],"check":[{"inputs":{"DRC":2},"expected":1.026,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":3.078,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":7.695,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations)."},{"id":"marden-2025-knightia-total","source":"marden-2025","name":"Knightia excelsa, NZ, whole-plant biomass from RCD (Table 6)","output":{"quantity":"total_biomass"},"expression":"0.0849 * exp(0.52 * DRC)","published":{"expression":"84.9 * exp(0.052 * RCD)","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"g"},"taxon":{"level":"species","name":"Knightia excelsa","family":"Proteaceae","group":"broadleaf"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.79,"method":"nonlinear least squares, exponential (y = a e^(bx))"},"evidence":[{"field":"expression","quote":"y = 84.9e0.052x","locator":"Table 6, Total biomass, Knightia excelsa"},{"field":"fit.r2","quote":"0.79","locator":"Table 6, Total biomass, Knightia excelsa, r² column"}],"check":[{"inputs":{"DRC":2},"expected":0.2402,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":1.9227,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":207.21,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations). r² for exponential fits is a pseudo r²."},{"id":"marden-2025-leptospermum-agb","source":"marden-2025","name":"Leptospermum scoparium, NZ, total aboveground biomass from RCD (Table 3)","output":{"quantity":"agb"},"expression":"0.0527 * exp(0.871 * DRC)","published":{"expression":"52.7 * exp(0.0871 * RCD)","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"g"},"taxon":{"level":"species","name":"Leptospermum scoparium","family":"Myrtaceae","group":"shrub"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.949,"method":"nonlinear least squares, exponential (y = a e^(bx))"},"evidence":[{"field":"expression","quote":"y = 52.7e0.0871x","locator":"Table 3, Total above-ground biomass, Leptospermum scoparium"},{"field":"fit.r2","quote":"0.949","locator":"Table 3, Total above-ground biomass, Leptospermum scoparium, r² column"}],"check":[{"inputs":{"DRC":2},"expected":0.30085,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":9.8047,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":24881,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations). r² for exponential fits is a pseudo r²."},{"id":"marden-2025-leptospermum-bgb","source":"marden-2025","name":"Leptospermum scoparium, NZ, belowground biomass from RCD (Table 3)","output":{"quantity":"bgb"},"expression":"0.0141 * exp(0.852 * DRC)","published":{"expression":"14.1 * exp(0.0852 * RCD)","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"g"},"taxon":{"level":"species","name":"Leptospermum scoparium","family":"Myrtaceae","group":"shrub"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.949,"method":"nonlinear least squares, exponential (y = a e^(bx))"},"evidence":[{"field":"expression","quote":"y = 14.1e0.0852x","locator":"Table 3, Total below-ground biomass, Leptospermum scoparium"},{"field":"fit.r2","quote":"0.949","locator":"Table 3, Total below-ground biomass, Leptospermum scoparium, r² column"}],"check":[{"inputs":{"DRC":2},"expected":0.077492,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":2.3406,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":5006.1,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations). r² for exponential fits is a pseudo r²."},{"id":"marden-2025-leptospermum-h","source":"marden-2025","name":"Leptospermum scoparium, NZ, height from RCD (Table 3)","output":{"quantity":"height"},"expression":"0.762 * DRC","published":{"expression":"0.0762 * RCD","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"m"},"taxon":{"level":"species","name":"Leptospermum scoparium","family":"Myrtaceae","group":"shrub"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.936,"method":"ordinary least squares, linear through origin (y = mx)"},"evidence":[{"field":"expression","quote":"y = 0.0762x","locator":"Table 3, Height, Leptospermum scoparium"},{"field":"fit.r2","quote":"0.936","locator":"Table 3, Height, Leptospermum scoparium, r² column"}],"check":[{"inputs":{"DRC":2},"expected":1.524,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":4.572,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":11.43,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations)."},{"id":"marden-2025-leptospermum-total","source":"marden-2025","name":"Leptospermum scoparium, NZ, whole-plant biomass from RCD (Table 6)","output":{"quantity":"total_biomass"},"expression":"0.0667 * exp(0.868 * DRC)","published":{"expression":"66.7 * exp(0.0868 * RCD)","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"g"},"taxon":{"level":"species","name":"Leptospermum scoparium","family":"Myrtaceae","group":"shrub"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.95,"method":"nonlinear least squares, exponential (y = a e^(bx))"},"evidence":[{"field":"expression","quote":"y = 66.7e0.0868x","locator":"Table 6, Total biomass, Leptospermum scoparium"},{"field":"fit.r2","quote":"0.95","locator":"Table 6, Total biomass, Leptospermum scoparium, r² column"}],"check":[{"inputs":{"DRC":2},"expected":0.3785,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":12.188,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":30105,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations). r² for exponential fits is a pseudo r²."},{"id":"marden-2025-myrsine-agb","source":"marden-2025","name":"Myrsine australis, NZ, total aboveground biomass from RCD (Table 3)","output":{"quantity":"agb"},"expression":"0.026 * exp(0.823 * DRC)","published":{"expression":"26 * exp(0.0823 * RCD)","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"g"},"taxon":{"level":"species","name":"Myrsine australis","family":"Primulaceae","group":"shrub"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.861,"method":"nonlinear least squares, exponential (y = a e^(bx))"},"evidence":[{"field":"expression","quote":"y = 26e0.0823x","locator":"Table 3, Total above-ground biomass, Myrsine australis"},{"field":"fit.r2","quote":"0.861","locator":"Table 3, Total above-ground biomass, Myrsine australis, r² column"}],"check":[{"inputs":{"DRC":2},"expected":0.13484,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":3.6268,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":5975,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations). r² for exponential fits is a pseudo r²."},{"id":"marden-2025-myrsine-bgb","source":"marden-2025","name":"Myrsine australis, NZ, belowground biomass from RCD (Table 3)","output":{"quantity":"bgb"},"expression":"0.0129 * exp(0.75 * DRC)","published":{"expression":"12.9 * exp(0.075 * RCD)","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"g"},"taxon":{"level":"species","name":"Myrsine australis","family":"Primulaceae","group":"shrub"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.818,"method":"nonlinear least squares, exponential (y = a e^(bx))"},"evidence":[{"field":"expression","quote":"y = 12.9e0.075x","locator":"Table 3, Total below-ground biomass, Myrsine australis"},{"field":"fit.r2","quote":"0.818","locator":"Table 3, Total below-ground biomass, Myrsine australis, r² column"}],"check":[{"inputs":{"DRC":2},"expected":0.057814,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":1.1612,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":991.75,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations). r² for exponential fits is a pseudo r²."},{"id":"marden-2025-myrsine-h","source":"marden-2025","name":"Myrsine australis, NZ, height from RCD (Table 3)","output":{"quantity":"height"},"expression":"0.348 * ln(10 * DRC)","published":{"expression":"0.348 * ln(RCD)","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"m"},"taxon":{"level":"species","name":"Myrsine australis","family":"Primulaceae","group":"shrub"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.957,"method":"ordinary least squares, natural log-linear through origin (y = m ln x)"},"evidence":[{"field":"expression","quote":"y = 0.348ln(x)","locator":"Table 3, Height, Myrsine australis"},{"field":"fit.r2","quote":"0.957","locator":"Table 3, Height, Myrsine australis, r² column"}],"check":[{"inputs":{"DRC":2},"expected":1.0425,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":1.4248,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":1.7437,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations)."},{"id":"marden-2025-myrsine-total","source":"marden-2025","name":"Myrsine australis, NZ, whole-plant biomass from RCD (Table 6)","output":{"quantity":"total_biomass"},"expression":"0.0388 * exp(0.801 * DRC)","published":{"expression":"38.8 * exp(0.0801 * RCD)","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"g"},"taxon":{"level":"species","name":"Myrsine australis","family":"Primulaceae","group":"shrub"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.85,"method":"nonlinear least squares, exponential (y = a e^(bx))"},"evidence":[{"field":"expression","quote":"y = 38.8e0.0801x","locator":"Table 6, Total biomass, Myrsine australis"},{"field":"fit.r2","quote":"0.85","locator":"Table 6, Total biomass, Myrsine australis, r² column"}],"check":[{"inputs":{"DRC":2},"expected":0.19256,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":4.743,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":6410.3,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations). r² for exponential fits is a pseudo r²."},{"id":"marden-2025-piteug-agb","source":"marden-2025","name":"Pittosporum eugenoides, NZ, total aboveground biomass from RCD (Table 3)","output":{"quantity":"agb"},"expression":"0.221 * exp(0.455 * DRC)","published":{"expression":"221 * exp(0.0455 * RCD)","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"g"},"taxon":{"level":"species","name":"Pittosporum eugenoides","family":"Pittosporaceae","group":"broadleaf"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.897,"method":"nonlinear least squares, exponential (y = a e^(bx))"},"evidence":[{"field":"expression","quote":"y = 221e0.0455x","locator":"Table 3, Total above-ground biomass, Pittosporum eugenoides"},{"field":"fit.r2","quote":"0.897","locator":"Table 3, Total above-ground biomass, Pittosporum eugenoides, r² column"}],"check":[{"inputs":{"DRC":2},"expected":0.54904,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":3.3886,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":203.45,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations). r² for exponential fits is a pseudo r²."},{"id":"marden-2025-piteug-bgb","source":"marden-2025","name":"Pittosporum eugenoides, NZ, belowground biomass from RCD (Table 3)","output":{"quantity":"bgb"},"expression":"0.0539 * exp(0.522 * DRC)","published":{"expression":"53.9 * exp(0.0522 * RCD)","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"g"},"taxon":{"level":"species","name":"Pittosporum eugenoides","family":"Pittosporaceae","group":"broadleaf"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.931,"method":"nonlinear least squares, exponential (y = a e^(bx))"},"evidence":[{"field":"expression","quote":"y = 53.9e0.0522x","locator":"Table 3, Total below-ground biomass, Pittosporum eugenoides"},{"field":"fit.r2","quote":"0.931","locator":"Table 3, Total below-ground biomass, Pittosporum eugenoides, r² column"}],"check":[{"inputs":{"DRC":2},"expected":0.15311,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":1.2354,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":135.55,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations). r² for exponential fits is a pseudo r²."},{"id":"marden-2025-piteug-h","source":"marden-2025","name":"Pittosporum eugenoides, NZ, height from RCD (Table 3)","output":{"quantity":"height"},"expression":"0.499 * DRC","published":{"expression":"0.0499 * RCD","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"m"},"taxon":{"level":"species","name":"Pittosporum eugenoides","family":"Pittosporaceae","group":"broadleaf"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.968,"method":"ordinary least squares, linear through origin (y = mx)"},"evidence":[{"field":"expression","quote":"y = 0.0499x","locator":"Table 3, Height, Pittosporum eugenoides"},{"field":"fit.r2","quote":"0.968","locator":"Table 3, Height, Pittosporum eugenoides, r² column"}],"check":[{"inputs":{"DRC":2},"expected":0.998,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":2.994,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":7.485,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations)."},{"id":"marden-2025-piteug-total","source":"marden-2025","name":"Pittosporum eugenoides, NZ, whole-plant biomass from RCD (Table 6)","output":{"quantity":"total_biomass"},"expression":"0.274 * exp(0.471 * DRC)","published":{"expression":"274 * exp(0.0471 * RCD)","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"g"},"taxon":{"level":"species","name":"Pittosporum eugenoides","family":"Pittosporaceae","group":"broadleaf"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.91,"method":"nonlinear least squares, exponential (y = a e^(bx))"},"evidence":[{"field":"expression","quote":"y = 274e0.0471x","locator":"Table 6, Total biomass, Pittosporum eugenoides"},{"field":"fit.r2","quote":"0.91","locator":"Table 6, Total biomass, Pittosporum eugenoides, r² column"}],"check":[{"inputs":{"DRC":2},"expected":0.70284,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":4.6245,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":320.66,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations). r² for exponential fits is a pseudo r²."},{"id":"marden-2025-pitten-agb","source":"marden-2025","name":"Pittosporum tenuifolium, NZ, total aboveground biomass from RCD (Table 3)","output":{"quantity":"agb"},"expression":"0.137 * exp(0.546 * DRC)","published":{"expression":"137 * exp(0.0546 * RCD)","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"g"},"taxon":{"level":"species","name":"Pittosporum tenuifolium","family":"Pittosporaceae","group":"broadleaf"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.845,"method":"nonlinear least squares, exponential (y = a e^(bx))"},"evidence":[{"field":"expression","quote":"y = 137e0.0546x","locator":"Table 3, Total above-ground biomass, Pittosporum tenuifolium"},{"field":"fit.r2","quote":"0.845","locator":"Table 3, Total above-ground biomass, Pittosporum tenuifolium, r² column"}],"check":[{"inputs":{"DRC":2},"expected":0.40829,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":3.6263,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":493.85,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations). r² for exponential fits is a pseudo r²."},{"id":"marden-2025-pitten-bgb","source":"marden-2025","name":"Pittosporum tenuifolium, NZ, belowground biomass from RCD (Table 3)","output":{"quantity":"bgb"},"expression":"0.0298 * exp(0.613 * DRC)","published":{"expression":"29.8 * exp(0.0613 * RCD)","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"g"},"taxon":{"level":"species","name":"Pittosporum tenuifolium","family":"Pittosporaceae","group":"broadleaf"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.845,"method":"nonlinear least squares, exponential (y = a e^(bx))"},"evidence":[{"field":"expression","quote":"y = 29.8e0.0613x","locator":"Table 3, Total below-ground biomass, Pittosporum tenuifolium"},{"field":"fit.r2","quote":"0.845","locator":"Table 3, Total below-ground biomass, Pittosporum tenuifolium, r² column"}],"check":[{"inputs":{"DRC":2},"expected":0.10155,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":1.1791,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":293.46,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations). r² for exponential fits is a pseudo r²."},{"id":"marden-2025-pitten-h","source":"marden-2025","name":"Pittosporum tenuifolium, NZ, height from RCD (Table 3)","output":{"quantity":"height"},"expression":"0.5 * DRC","published":{"expression":"0.05 * RCD","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"m"},"taxon":{"level":"species","name":"Pittosporum tenuifolium","family":"Pittosporaceae","group":"broadleaf"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.944,"method":"ordinary least squares, linear through origin (y = mx)"},"evidence":[{"field":"expression","quote":"y = 0.05x","locator":"Table 3, Height, Pittosporum tenuifolium"},{"field":"fit.r2","quote":"0.944","locator":"Table 3, Height, Pittosporum tenuifolium, r² column"}],"check":[{"inputs":{"DRC":2},"expected":1,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":3,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":7.5,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations)."},{"id":"marden-2025-pitten-total","source":"marden-2025","name":"Pittosporum tenuifolium, NZ, whole-plant biomass from RCD (Table 6)","output":{"quantity":"total_biomass"},"expression":"0.167 * exp(0.56 * DRC)","published":{"expression":"167 * exp(0.056 * RCD)","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"g"},"taxon":{"level":"species","name":"Pittosporum tenuifolium","family":"Pittosporaceae","group":"broadleaf"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.85,"method":"nonlinear least squares, exponential (y = a e^(bx))"},"evidence":[{"field":"expression","quote":"y = 167e0.056x","locator":"Table 6, Total biomass, Pittosporum tenuifolium"},{"field":"fit.r2","quote":"0.85","locator":"Table 6, Total biomass, Pittosporum tenuifolium, r² column"}],"check":[{"inputs":{"DRC":2},"expected":0.51183,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":4.8078,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":742.66,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations). r² for exponential fits is a pseudo r²."},{"id":"marden-2025-plagianthus-agb","source":"marden-2025","name":"Plagianthus regius, NZ, total aboveground biomass from RCD (Table 3)","output":{"quantity":"agb"},"expression":"0.551 * exp(0.227 * DRC)","published":{"expression":"551 * exp(0.0227 * RCD)","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"g"},"taxon":{"level":"species","name":"Plagianthus regius","family":"Malvaceae","group":"broadleaf"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.869,"method":"nonlinear least squares, exponential (y = a e^(bx))"},"evidence":[{"field":"expression","quote":"y = 551e0.0227x","locator":"Table 3, Total above-ground biomass, Plagianthus regius"},{"field":"fit.r2","quote":"0.869","locator":"Table 3, Total above-ground biomass, Plagianthus regius, r² column"}],"check":[{"inputs":{"DRC":2},"expected":0.8676,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":2.1511,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":16.593,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations). r² for exponential fits is a pseudo r²."},{"id":"marden-2025-plagianthus-bgb","source":"marden-2025","name":"Plagianthus regius, NZ, belowground biomass from RCD (Table 3)","output":{"quantity":"bgb"},"expression":"0.161 * exp(0.256 * DRC)","published":{"expression":"161 * exp(0.0256 * RCD)","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"g"},"taxon":{"level":"species","name":"Plagianthus regius","family":"Malvaceae","group":"broadleaf"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.941,"method":"nonlinear least squares, exponential (y = a e^(bx))"},"evidence":[{"field":"expression","quote":"y = 161e0.0256x","locator":"Table 3, Total below-ground biomass, Plagianthus regius"},{"field":"fit.r2","quote":"0.941","locator":"Table 3, Total below-ground biomass, Plagianthus regius, r² column"}],"check":[{"inputs":{"DRC":2},"expected":0.26865,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":0.748,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":7.4906,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations). r² for exponential fits is a pseudo r²."},{"id":"marden-2025-plagianthus-h","source":"marden-2025","name":"Plagianthus regius, NZ, height from RCD (Table 3)","output":{"quantity":"height"},"expression":"0.646 * ln(10 * DRC)","published":{"expression":"0.646 * ln(RCD)","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"m"},"taxon":{"level":"species","name":"Plagianthus regius","family":"Malvaceae","group":"broadleaf"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.947,"method":"ordinary least squares, natural log-linear through origin (y = m ln x)"},"evidence":[{"field":"expression","quote":"y = 0.646ln(x)","locator":"Table 3, Height, Plagianthus regius"},{"field":"fit.r2","quote":"0.947","locator":"Table 3, Height, Plagianthus regius, r² column"}],"check":[{"inputs":{"DRC":2},"expected":1.9352,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":2.6449,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":3.2369,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations)."},{"id":"marden-2025-plagianthus-total","source":"marden-2025","name":"Plagianthus regius, NZ, whole-plant biomass from RCD (Table 6)","output":{"quantity":"total_biomass"},"expression":"0.711 * exp(0.235 * DRC)","published":{"expression":"711 * exp(0.0235 * RCD)","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"g"},"taxon":{"level":"species","name":"Plagianthus regius","family":"Malvaceae","group":"broadleaf"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.9,"method":"nonlinear least squares, exponential (y = a e^(bx))"},"evidence":[{"field":"expression","quote":"y = 711e0.0235x","locator":"Table 6, Total biomass, Plagianthus regius"},{"field":"fit.r2","quote":"0.9","locator":"Table 6, Total biomass, Plagianthus regius, r² column"}],"check":[{"inputs":{"DRC":2},"expected":1.1376,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":2.9122,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":24.141,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations). r² for exponential fits is a pseudo r²."},{"id":"marden-2025-pseudopanax-agb","source":"marden-2025","name":"Pseudopanax arboreus, NZ, total aboveground biomass from RCD (Table 3)","output":{"quantity":"agb"},"expression":"0.103 * exp(0.47 * DRC)","published":{"expression":"103 * exp(0.047 * RCD)","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"g"},"taxon":{"level":"species","name":"Pseudopanax arboreus","family":"Araliaceae","group":"broadleaf"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.943,"method":"nonlinear least squares, exponential (y = a e^(bx))"},"evidence":[{"field":"expression","quote":"y = 103e0.047x","locator":"Table 3, Total above-ground biomass, Pseudopanax arboreus"},{"field":"fit.r2","quote":"0.943","locator":"Table 3, Total above-ground biomass, Pseudopanax arboreus, r² column"}],"check":[{"inputs":{"DRC":2},"expected":0.26368,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":1.728,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":118.74,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations). r² for exponential fits is a pseudo r²."},{"id":"marden-2025-pseudopanax-bgb","source":"marden-2025","name":"Pseudopanax arboreus, NZ, belowground biomass from RCD (Table 3)","output":{"quantity":"bgb"},"expression":"0.041 * exp(0.421 * DRC)","published":{"expression":"41 * exp(0.0421 * RCD)","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"g"},"taxon":{"level":"species","name":"Pseudopanax arboreus","family":"Araliaceae","group":"broadleaf"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.897,"method":"nonlinear least squares, exponential (y = a e^(bx))"},"evidence":[{"field":"expression","quote":"y = 41e0.0421x","locator":"Table 3, Total below-ground biomass, Pseudopanax arboreus"},{"field":"fit.r2","quote":"0.897","locator":"Table 3, Total below-ground biomass, Pseudopanax arboreus, r² column"}],"check":[{"inputs":{"DRC":2},"expected":0.095161,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":0.51264,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":22.665,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations). r² for exponential fits is a pseudo r²."},{"id":"marden-2025-pseudopanax-h","source":"marden-2025","name":"Pseudopanax arboreus, NZ, height from RCD (Table 3)","output":{"quantity":"height"},"expression":"0.444 * DRC","published":{"expression":"0.0444 * RCD","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"m"},"taxon":{"level":"species","name":"Pseudopanax arboreus","family":"Araliaceae","group":"broadleaf"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.94,"method":"ordinary least squares, linear through origin (y = mx)"},"evidence":[{"field":"expression","quote":"y = 0.0444x","locator":"Table 3, Height, Pseudopanax arboreus"},{"field":"fit.r2","quote":"0.94","locator":"Table 3, Height, Pseudopanax arboreus, r² column"}],"check":[{"inputs":{"DRC":2},"expected":0.888,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":2.664,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":6.66,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations)."},{"id":"marden-2025-pseudopanax-total","source":"marden-2025","name":"Pseudopanax arboreus, NZ, whole-plant biomass from RCD (Table 6)","output":{"quantity":"total_biomass"},"expression":"0.144 * exp(0.458 * DRC)","published":{"expression":"144 * exp(0.0458 * RCD)","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"g"},"taxon":{"level":"species","name":"Pseudopanax arboreus","family":"Araliaceae","group":"broadleaf"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.94,"method":"nonlinear least squares, exponential (y = a e^(bx))"},"evidence":[{"field":"expression","quote":"y = 144e0.0458x","locator":"Table 6, Total biomass, Pseudopanax arboreus"},{"field":"fit.r2","quote":"0.94","locator":"Table 6, Total biomass, Pseudopanax arboreus, r² column"}],"check":[{"inputs":{"DRC":2},"expected":0.3599,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":2.248,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":138.66,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations). r² for exponential fits is a pseudo r²."},{"id":"marden-2025-sophora-agb","source":"marden-2025","name":"Sophora tetraptera, NZ, total aboveground biomass from RCD (Table 3)","output":{"quantity":"agb"},"expression":"0.127 * exp(0.464 * DRC)","published":{"expression":"127 * exp(0.0464 * RCD)","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"g"},"taxon":{"level":"species","name":"Sophora tetraptera","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.8,"method":"nonlinear least squares, exponential (y = a e^(bx))"},"evidence":[{"field":"expression","quote":"y = 127e0.0464x","locator":"Table 3, Total above-ground biomass, Sophora tetraptera"},{"field":"fit.r2","quote":"0.8","locator":"Table 3, Total above-ground biomass, Sophora tetraptera, r² column"}],"check":[{"inputs":{"DRC":2},"expected":0.32124,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":2.0553,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":133.81,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations). r² for exponential fits is a pseudo r²."},{"id":"marden-2025-sophora-bgb","source":"marden-2025","name":"Sophora tetraptera, NZ, belowground biomass from RCD (Table 3)","output":{"quantity":"bgb"},"expression":"0.0256 * exp(0.572 * DRC)","published":{"expression":"25.6 * exp(0.0572 * RCD)","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"g"},"taxon":{"level":"species","name":"Sophora tetraptera","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.757,"method":"nonlinear least squares, exponential (y = a e^(bx))"},"evidence":[{"field":"expression","quote":"y = 25.6e0.0572x","locator":"Table 3, Total below-ground biomass, Sophora tetraptera"},{"field":"fit.r2","quote":"0.757","locator":"Table 3, Total below-ground biomass, Sophora tetraptera, r² column"}],"check":[{"inputs":{"DRC":2},"expected":0.080366,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":0.79202,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":136.3,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations). r² for exponential fits is a pseudo r²."},{"id":"marden-2025-sophora-h","source":"marden-2025","name":"Sophora tetraptera, NZ, height from RCD (Table 3)","output":{"quantity":"height"},"expression":"0.529 * ln(10 * DRC)","published":{"expression":"0.529 * ln(RCD)","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"m"},"taxon":{"level":"species","name":"Sophora tetraptera","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.921,"method":"ordinary least squares, natural log-linear through origin (y = m ln x)"},"evidence":[{"field":"expression","quote":"y = 0.529ln(x)","locator":"Table 3, Height, Sophora tetraptera"},{"field":"fit.r2","quote":"0.921","locator":"Table 3, Height, Sophora tetraptera, r² column"}],"check":[{"inputs":{"DRC":2},"expected":1.5847,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":2.1659,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":2.6506,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations)."},{"id":"marden-2025-sophora-total","source":"marden-2025","name":"Sophora tetraptera, NZ, whole-plant biomass from RCD (Table 6)","output":{"quantity":"total_biomass"},"expression":"0.154 * exp(0.488 * DRC)","published":{"expression":"154 * exp(0.0488 * RCD)","units":{"RCD":"mm"},"variables":{"RCD":"DRC"},"output_unit":"g"},"taxon":{"level":"species","name":"Sophora tetraptera","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"site","countries":["NZ"],"place":"Taruheru River terrace, Gisborne, New Zealand","biomes":["temperate"]},"stand":"plantation","fit":{"r2":0.79,"method":"nonlinear least squares, exponential (y = a e^(bx))"},"evidence":[{"field":"expression","quote":"y = 154e0.0488x","locator":"Table 6, Total biomass, Sophora tetraptera"},{"field":"fit.r2","quote":"0.79","locator":"Table 6, Total biomass, Sophora tetraptera, r² column"}],"check":[{"inputs":{"DRC":2},"expected":0.40869,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":6},"expected":2.8783,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"},{"inputs":{"DRC":15},"expected":232.57,"origin":"computed","note":"hand-computed from the published form (RCD in mm, mass in g, converted)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Open-spaced juvenile plants (2-year-old containerised plants on-grown for 3 years, sampled up to 5 years). The tables are headed 'at age 5 years' but the appendix figures show points from all harvest years, and the paper gives no n or RCD range for these fits, so none is recorded. x is root collar diameter in mm; biomass in g and height in m (units inferred from Table 2 and Appendix 1 means, which the equations reproduce; the paper does not print units beside the equations). r² for exponential fits is a pseudo r²."},{"id":"marroquin-2018-cembroides-agb","source":"marroquin-2018","name":"Pinus cembroides total aboveground biomass from DBH (quadratic in ln D)","output":{"quantity":"agb"},"expression":"exp(5.078 - 3.764*ln(D) + 1.284*(ln(D))^2)","published":{"expression":"exp(5.078 - 3.764*ln(Dn) + 1.284*(ln(Dn))^2)","units":{"Dn":"cm"},"variables":{"Dn":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus cembroides Zucc.","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["MX"],"place":"Cuauhtémoc and El Recreo ejidos, Saltillo, Coahuila","biomes":["dryland","temperate"]},"stand":"plantation","fit":{"n_trees":50,"dbh_min_cm":6.1,"dbh_max_cm":11,"h_min_m":2.9,"h_max_m":4.4,"r2":0.94,"method":"ln-ln least squares in R; no correction factor stated"},"evidence":[{"field":"expression","quote":"Bt 3 5.078 1.59 -3.764 1.51 1.284 0.35","locator":"Cuadro 3 (Bt, modelo 3); R2 ajustada 0.94 in Cuadro 5"},{"field":"model form","quote":"ln B = β0 + β1 ln(Dn) + β2 ln(Dn)2 + ε","locator":"Cuadro 1, modelo 3 (Polinomial de grado 2)"},{"field":"fit.n_trees","quote":"con una muestra de 50 árboles por especie","locator":"Resumen"}],"check":[{"inputs":{"D":7},"expected":13.675,"origin":"computed","note":"computed from the published form (coefficients as printed, no correction factor)"},{"inputs":{"D":9},"expected":20.217,"origin":"computed","note":"computed from the published form (coefficients as printed, no correction factor)"},{"inputs":{"D":11},"expected":31.037,"origin":"computed","note":"computed from the published form (coefficients as printed, no correction factor)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Bt = total biomass (leaves-branches + stem), selected as best model for total biomass in P. cembroides (Resultados, Biomasa por componente). Decimal point in the original. Plantation 22 years old. Biomass by the indirect Adelaide method (leaves-branches by reference branch, stem by Smalian volume times basic density), so the stem and total values are not weighed directly. Cuadro 5 R2 is the adjusted R2. The paper prints no correction factor for the ln back-transform, so none is applied. Ranges are from Cuadro 2 (n = 50)."},{"id":"marroquin-2018-cembroides-stem","source":"marroquin-2018","name":"Pinus cembroides stem biomass from DBH (cubic in ln D)","output":{"quantity":"stem_biomass"},"expression":"exp(-95.506 + 133.347*ln(D) - 61.223*(ln(D))^2 + 9.459*(ln(D))^3)","published":{"expression":"exp(-95.506 + 133.347*ln(Dn) - 61.223*(ln(Dn))^2 + 9.459*(ln(Dn))^3)","units":{"Dn":"cm"},"variables":{"Dn":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus cembroides Zucc.","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["MX"],"place":"Cuauhtémoc and El Recreo ejidos, Saltillo, Coahuila","biomes":["dryland","temperate"]},"stand":"plantation","fit":{"n_trees":50,"dbh_min_cm":6.1,"dbh_max_cm":11,"h_min_m":2.9,"h_max_m":4.4,"r2":0.75,"method":"ln-ln least squares in R; no correction factor stated"},"evidence":[{"field":"expression","quote":"Bf 4 -95.506 42.35 133.347 60.68 -61.223 28.89 9.459 4.57","locator":"Cuadro 3 (Bf, modelo 4); R2 ajustada 0.75 in Cuadro 5"},{"field":"model form","quote":"ln B = β0 + β1 ln(Dn) + β2 ln(Dn)2 + β3 ln(Dn)3 + ε","locator":"Cuadro 1, modelo 4 (Polinomial de grado 3)"},{"field":"fit.n_trees","quote":"con una muestra de 50 árboles por especie","locator":"Resumen"}],"check":[{"inputs":{"D":7},"expected":6.3424,"origin":"computed","note":"computed from the published form (coefficients as printed, no correction factor)"},{"inputs":{"D":9},"expected":9.5247,"origin":"computed","note":"computed from the published form (coefficients as printed, no correction factor)"},{"inputs":{"D":11},"expected":13.977,"origin":"computed","note":"computed from the published form (coefficients as printed, no correction factor)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Bf = stem biomass, selected as best model for stem in P. cembroides (Resultados). The cubic term in ln D has a very large cancelling coefficient set; the fit is only meaningful inside the sampled DBH range. Decimal point in the original. Plantation 22 years old. Biomass by the indirect Adelaide method (leaves-branches by reference branch, stem by Smalian volume times basic density), so the stem and total values are not weighed directly. Cuadro 5 R2 is the adjusted R2. The paper prints no correction factor for the ln back-transform, so none is applied. Ranges are from Cuadro 2 (n = 50)."},{"id":"marroquin-2018-halepensis-agb","source":"marroquin-2018","name":"Pinus halepensis total aboveground biomass from DBH and height (combined variable)","output":{"quantity":"agb"},"expression":"exp(0.064 + 0.54*ln(D^2*H))","published":{"expression":"exp(0.064 + 0.54*ln(Dn^2*H))","units":{"Dn":"cm","H":"m"},"variables":{"Dn":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus halepensis Mill.","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["MX"],"place":"Cuauhtémoc and El Recreo ejidos, Saltillo, Coahuila","biomes":["dryland","temperate"]},"stand":"plantation","fit":{"n_trees":50,"dbh_min_cm":6.9,"dbh_max_cm":22.8,"h_min_m":3.1,"h_max_m":6.7,"r2":0.85,"method":"ln-ln least squares in R; no correction factor stated"},"evidence":[{"field":"expression","quote":"Bt 2 0.064 0.26 0.540 0.04","locator":"Cuadro 4 (Bt, modelo 2); R2 ajustada 0.85 in Cuadro 5"},{"field":"model form","quote":"ln B = β0 + β1 ln(Dn2 H) + ε","locator":"Cuadro 1, modelo 2 (Variable combinada)"},{"field":"fit.n_trees","quote":"con una muestra de 50 árboles por especie","locator":"Resumen"}],"check":[{"inputs":{"D":8,"H":4},"expected":21.293,"origin":"computed","note":"computed from the published form (coefficients as printed, no correction factor)"},{"inputs":{"D":14,"H":5},"expected":43.96,"origin":"computed","note":"computed from the published form (coefficients as printed, no correction factor)"},{"inputs":{"D":21,"H":6},"expected":75.161,"origin":"computed","note":"computed from the published form (coefficients as printed, no correction factor)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Bt model 2, selected for P. halepensis in Resultados (modelo 2 for Bhr, Bf and Bt). The Cuadro 4 row lists the intercept then the slope. Leaves-branches (Bhr) model 2 is not stored: it combines two components with no matching output quantity. Decimal point in the original. Plantation 22 years old. Biomass by the indirect Adelaide method (leaves-branches by reference branch, stem by Smalian volume times basic density), so the stem and total values are not weighed directly. Cuadro 5 R2 is the adjusted R2. The paper prints no correction factor for the ln back-transform, so none is applied. Ranges are from Cuadro 2 (n = 50)."},{"id":"marroquin-2018-halepensis-stem","source":"marroquin-2018","name":"Pinus halepensis stem biomass from DBH and height (combined variable)","output":{"quantity":"stem_biomass"},"expression":"exp(-1.198 + 0.633*ln(D^2*H))","published":{"expression":"exp(-1.198 + 0.633*ln(Dn^2*H))","units":{"Dn":"cm","H":"m"},"variables":{"Dn":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus halepensis Mill.","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["MX"],"place":"Cuauhtémoc and El Recreo ejidos, Saltillo, Coahuila","biomes":["dryland","temperate"]},"stand":"plantation","fit":{"n_trees":50,"dbh_min_cm":6.9,"dbh_max_cm":22.8,"h_min_m":3.1,"h_max_m":6.7,"r2":0.85,"method":"ln-ln least squares in R; no correction factor stated"},"evidence":[{"field":"expression","quote":"Bf 2 -1.198 0.30 0.633 0.04","locator":"Cuadro 4 (Bf, modelo 2); R2 ajustada 0.85 in Cuadro 5"},{"field":"model form","quote":"ln B = β0 + β1 ln(Dn2 H) + ε","locator":"Cuadro 1, modelo 2 (Variable combinada)"},{"field":"fit.n_trees","quote":"con una muestra de 50 árboles por especie","locator":"Resumen"}],"check":[{"inputs":{"D":8,"H":4},"expected":10.096,"origin":"computed","note":"computed from the published form (coefficients as printed, no correction factor)"},{"inputs":{"D":14,"H":5},"expected":23.614,"origin":"computed","note":"computed from the published form (coefficients as printed, no correction factor)"},{"inputs":{"D":21,"H":6},"expected":44.281,"origin":"computed","note":"computed from the published form (coefficients as printed, no correction factor)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Bf model 2, selected for P. halepensis in Resultados (modelo 2 for Bhr, Bf and Bt). The Cuadro 4 row lists the intercept then the slope. Leaves-branches (Bhr) model 2 is not stored: it combines two components with no matching output quantity. Decimal point in the original. Plantation 22 years old. Biomass by the indirect Adelaide method (leaves-branches by reference branch, stem by Smalian volume times basic density), so the stem and total values are not weighed directly. Cuadro 5 R2 is the adjusted R2. The paper prints no correction factor for the ln back-transform, so none is applied. Ranges are from Cuadro 2 (n = 50)."},{"id":"martinez-dominguez-2020-branch","source":"martinez-dominguez-2020","name":"Pinus patula Branch biomass from D and H (Table 4)","output":{"quantity":"branch_biomass"},"expression":"exp(-7.8825 + 1.8028 * ln(D * H))","published":{"expression":"exp(-7.8825 + 1.8028 * ln(D * TH))","units":{"D":"cm","TH":"m"},"variables":{"TH":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus patula","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["MX"],"place":"Ixtlán de Juárez, Sierra Norte, Oaxaca (pine-oak forest)","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":25,"dbh_min_cm":3.5,"dbh_max_cm":25.7,"h_min_m":4.32,"h_max_m":20.18,"r2":0.9825,"method":"nonlinear regression (SAS PROC MODEL), exponential form"},"evidence":[{"field":"expression","quote":"y = e(−β0 + β1 ln (D × TH))","locator":"Section 3.1 (Model 1, Table 1)"},{"field":"expression","quote":"δ0 7.8825, δ1 1.8028, R2 0.9825","locator":"Table 4, Branches row, p. 165"},{"field":"fit.n_trees","quote":"a destructive analysis was made of 25 trees distributed in five diameter classes","locator":"Abstract"},{"field":"fit.dbh_min_cm","quote":"diameter at breast height (D) that varied from 3.5 cm to 25.7 cm, with a total height (TH) fluctuating from 4.32 m to 20.18 m","locator":"Section 3.1"}],"check":[{"inputs":{"D":8,"H":7},"expected":0.5349,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":13,"H":12},"expected":3.3919,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":22,"H":18},"expected":18.1886,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Printed form y = e^(−β0 + β1 ln(D × TH)); the tabulated β0 is positive and enters with a minus sign, as printed. Units are D in cm, TH in m, biomass in kg dry weight (Figure 3). No correction factor stated. Parameters read from Table 4 of the journal PDF (p. 165); the HTML version offers no CSV for Table 4. The paper also fits an additive simultaneous system (Table 6) with slightly different parameters; not added. The foliage model (Table 4: ϖ0 8.1986, ϖ1 1.6628, R2 0.9762) is not added here; the printed additive formula in Section 3.3 shows the foliage intercept without the minus sign, but Figure 3(d) (p. 166) prints the fitted foliage curve as y = e^(−8.198579+(1.66277 ln(D x TH))), n=25, so the sign is a typesetting slip and the model could be added as exp(−8.1986 + 1.6628 ln(D × TH)). Authors recommend use for 5 to 25 cm DBH."},{"id":"martinez-dominguez-2020-root","source":"martinez-dominguez-2020","name":"Pinus patula Belowground (root) biomass from D and H (Table 5)","output":{"quantity":"bgb"},"expression":"exp(-6.4835 + 1.716 * ln(D * H))","published":{"expression":"exp(-6.4835 + 1.716 * ln(D * TH))","units":{"D":"cm","TH":"m"},"variables":{"TH":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus patula","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["MX"],"place":"Ixtlán de Juárez, Sierra Norte, Oaxaca (pine-oak forest)","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":25,"dbh_min_cm":3.5,"dbh_max_cm":25.7,"h_min_m":4.32,"h_max_m":20.18,"r2":0.9848,"method":"nonlinear regression (SAS PROC MODEL), exponential form"},"evidence":[{"field":"expression","quote":"y = e(−β0 + β1 ln (D × TH))","locator":"Section 3.1 (Model 1, Table 1)"},{"field":"expression","quote":"β0 6.4835, β1 1.7160, R2 0.9848","locator":"Table 5, model (1) (CSV table download; p. 166 of the PDF)"},{"field":"fit.n_trees","quote":"a destructive analysis was made of 25 trees distributed in five diameter classes","locator":"Abstract"},{"field":"fit.dbh_min_cm","quote":"diameter at breast height (D) that varied from 3.5 cm to 25.7 cm, with a total height (TH) fluctuating from 4.32 m to 20.18 m","locator":"Section 3.1"}],"check":[{"inputs":{"D":8,"H":7},"expected":1.5281,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":13,"H":12},"expected":8.8645,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":22,"H":18},"expected":43.8426,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Printed form y = e^(−β0 + β1 ln(D × TH)); the tabulated β0 is positive and enters with a minus sign, as printed. Units are D in cm, TH in m, biomass in kg dry weight (Figure 3). No correction factor stated. Parameters read from the journal table CSV downloads. The paper also fits an additive simultaneous system (Table 6) with slightly different parameters; not added. The foliage model (Table 4: ϖ0 8.1986, ϖ1 1.6628, R2 0.9762) is not added here; the printed additive formula in Section 3.3 shows the foliage intercept without the minus sign, but Figure 3(d) (p. 166) prints the fitted foliage curve as y = e^(−8.198579+(1.66277 ln(D x TH))), n=25, so the sign is a typesetting slip and the model could be added as exp(−8.1986 + 1.6628 ln(D × TH)). Authors recommend use for 5 to 25 cm DBH."},{"id":"martinez-dominguez-2020-stem","source":"martinez-dominguez-2020","name":"Pinus patula Stem biomass from D and H (Table 4)","output":{"quantity":"stem_biomass"},"expression":"exp(-5.0347 + 1.7423 * ln(D * H))","published":{"expression":"exp(-5.0347 + 1.7423 * ln(D * TH))","units":{"D":"cm","TH":"m"},"variables":{"TH":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus patula","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["MX"],"place":"Ixtlán de Juárez, Sierra Norte, Oaxaca (pine-oak forest)","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":25,"dbh_min_cm":3.5,"dbh_max_cm":25.7,"h_min_m":4.32,"h_max_m":20.18,"r2":0.9848,"method":"nonlinear regression (SAS PROC MODEL), exponential form"},"evidence":[{"field":"expression","quote":"y = e(−β0 + β1 ln (D × TH))","locator":"Section 3.1 (Model 1, Table 1)"},{"field":"expression","quote":"β0 5.0347, β1 1.7423, R2 0.9848","locator":"Table 4, Stem row, p. 165"},{"field":"fit.n_trees","quote":"a destructive analysis was made of 25 trees distributed in five diameter classes","locator":"Abstract"},{"field":"fit.dbh_min_cm","quote":"diameter at breast height (D) that varied from 3.5 cm to 25.7 cm, with a total height (TH) fluctuating from 4.32 m to 20.18 m","locator":"Section 3.1"}],"check":[{"inputs":{"D":8,"H":7},"expected":7.2331,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":13,"H":12},"expected":43.1061,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":22,"H":18},"expected":218.4851,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Printed form y = e^(−β0 + β1 ln(D × TH)); the tabulated β0 is positive and enters with a minus sign, as printed. Units are D in cm, TH in m, biomass in kg dry weight (Figure 3). No correction factor stated. Parameters read from Table 4 of the journal PDF (p. 165); the HTML version offers no CSV for Table 4. The paper also fits an additive simultaneous system (Table 6) with slightly different parameters; not added. The foliage model (Table 4: ϖ0 8.1986, ϖ1 1.6628, R2 0.9762) is not added here; the printed additive formula in Section 3.3 shows the foliage intercept without the minus sign, but Figure 3(d) (p. 166) prints the fitted foliage curve as y = e^(−8.198579+(1.66277 ln(D x TH))), n=25, so the sign is a typesetting slip and the model could be added as exp(−8.1986 + 1.6628 ln(D × TH)). Authors recommend use for 5 to 25 cm DBH."},{"id":"martinez-dominguez-2020-total","source":"martinez-dominguez-2020","name":"Pinus patula Total biomass (roots, stem, branches, foliage) from D and H (Table 3)","output":{"quantity":"total_biomass"},"expression":"exp(-4.7483 + 1.7395 * ln(D * H))","published":{"expression":"exp(-4.7483 + 1.7395 * ln(D * TH))","units":{"D":"cm","TH":"m"},"variables":{"TH":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus patula","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["MX"],"place":"Ixtlán de Juárez, Sierra Norte, Oaxaca (pine-oak forest)","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":25,"dbh_min_cm":3.5,"dbh_max_cm":25.7,"h_min_m":4.32,"h_max_m":20.18,"r2":0.9886,"method":"nonlinear regression (SAS PROC MODEL), exponential form"},"evidence":[{"field":"expression","quote":"y = e(−β0 + β1 ln (D × TH))","locator":"Section 3.1 (Model 1, Table 1)"},{"field":"expression","quote":"β0 4.7483, β1 1.7395, R2 0.9886","locator":"Table 3, model (1) (CSV table download; p. 164 of the PDF)"},{"field":"fit.n_trees","quote":"a destructive analysis was made of 25 trees distributed in five diameter classes","locator":"Abstract"},{"field":"fit.dbh_min_cm","quote":"diameter at breast height (D) that varied from 3.5 cm to 25.7 cm, with a total height (TH) fluctuating from 4.32 m to 20.18 m","locator":"Section 3.1"}],"check":[{"inputs":{"D":8,"H":7},"expected":9.5239,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":13,"H":12},"expected":56.5952,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":22,"H":18},"expected":286.1082,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Printed form y = e^(−β0 + β1 ln(D × TH)); the tabulated β0 is positive and enters with a minus sign, as printed. Units are D in cm, TH in m, biomass in kg dry weight (Figure 3). No correction factor stated. Parameters read from the journal table CSV downloads. The paper also fits an additive simultaneous system (Table 6) with slightly different parameters; not added. The foliage model (Table 4: ϖ0 8.1986, ϖ1 1.6628, R2 0.9762) is not added here; the printed additive formula in Section 3.3 shows the foliage intercept without the minus sign, but Figure 3(d) (p. 166) prints the fitted foliage curve as y = e^(−8.198579+(1.66277 ln(D x TH))), n=25, so the sign is a typesetting slip and the model could be added as exp(−8.1986 + 1.6628 ln(D × TH)). Authors recommend use for 5 to 25 cm DBH. Total includes roots, stem, branches and foliage."},{"id":"mason-2014-agb","source":"mason-2014","name":"NZ shrubland shrubs and small trees, dry weight from basal area x height","output":{"quantity":"agb"},"expression":"exp(1.0215 * ln(0.785398163397448 * (DRC / 100)^2 * H) + 6.1512)","published":{"expression":"exp(1.0215 * ln(0.785398163397448 * (DRC / 100)^2 * H) + 6.1512)","units":{"DRC":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Shrubland shrubs and small trees, all species (Kunzea ericoides, Leptospermum scoparium, Ulex europaeus, Cytisus scoparius and others)","group":"shrub"},"region":{"scope":"regional","countries":["NZ"],"place":"Oxford (Canterbury) and d'Urville Island, South Island, New Zealand","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":162,"r2":0.93,"method":"iterative function minimisation of residual sum of squares, DW = exp(a ln(BA x Height) + b)"},"evidence":[{"field":"expression","quote":"Dry weight = exp(a • ln(basal area • height) + b) ... fitted on the entire harvested shrub dataset with a = 1.0215 and b = 6.1512","locator":"Eq. 1 and Figure 3 caption"},{"field":"fit.n_trees","quote":"Overall, 162 shrubs were harvested.","locator":"Section 2.3"},{"field":"fit.r2","quote":"The basal area × height allometric equation accurately (R-square = 0.93) predicted shrub dry weight","locator":"Section 3"}],"check":[{"inputs":{"DRC":3,"H":2},"expected":0.5761,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"DRC":8,"H":4},"expected":8.6753,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Paper predictor is total shrub basal area BA (m2, summed over all stems of the shrub) times maximum shrub height (m). BA is written here as pi/4 * (DRC/100)^2 so DRC is the basal diameter of a single stem, or the equivalent diameter sqrt(sum of d^2) for a multi-stemmed shrub. No back-transform correction is stated. Dry weight is of the whole harvested shrub (foliage and stem were weighed separately and, as the text reads, combined)."},{"id":"mendonca-2013-byrsonima-gardneriana","source":"mendonca-2013","name":"Byrsonima gardneriana, total aerial dry biomass from ground-level diameter and height (Table 2)","output":{"quantity":"agb"},"expression":"-92.8787 + 58.8329 * H - 8.94707 * H^2 + 1.79877 * DRC * H + 0.522902 * DRC * H^2","published":{"expression":"-92.8787 + 58.8329 * H - 8.94707 * H^2 + 1.79877 * DAS * H + 0.522902 * DAS * H^2","units":{"DAS":"cm","H":"m"},"variables":{"DAS":"DRC"},"output_unit":"kg"},"taxon":{"level":"species","name":"Byrsonima gardneriana","family":"Malpighiaceae","group":"broadleaf"},"region":{"scope":"site","countries":["BR"],"place":"Casa Nova and Remanso, northern Bahia, lower-middle São Francisco (caatinga arbustivo-arbórea)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":15,"r2":0.962,"method":"regression; model chosen among literature models and Backward/Forward stepwise fits by residual plots, S%, t test and R2"},"evidence":[{"field":"expression","quote":"MS=-92,8787+(58,8329*H)+(-8,94707*H²)+(1,79877*DH)+(0,522902*DH²)","locator":"Table 2, p. 360"},{"field":"fit.n_trees","quote":"amostrados 15 indivíduos, sendo três para cada classe de diâmetro, com exceção da espécie Chamaecrista belemii, em que foram amostrados 30 indivíduos","locator":"Ajuste das equações de regressão, p. 357"},{"field":"fit.r2","quote":"96,2 (R²)","locator":"Table 2, p. 360"}],"check":[{"inputs":{"DRC":4,"H":3},"expected":43.5061,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"DRC":8,"H":4},"expected":123.792,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"DRC":14,"H":6},"expected":352.663,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2 prints R2 as a percentage. D is diameter at ground level (DAS, 'diâmetro ao nível do solo', cm), mapped to DRC; H is total height in m; MS is dry mass in kg (Table 2 footnote). 'DH' and 'DH2' are read as D*H and D*H^2, and 'D2H' as D^2*H (variables listed on p. 358 as DAS*H, DAS*H2, DAS2*H). Total aerial dry biomass (leaves, branches, trunk). Diameter range of the sampled trees printed as 2,5 a 18 cm (ground-level diameter, so not entered as a DBH range): use inside that range. Equations were also fitted by diameter class for all species pooled (Table 3); those are not included here."},{"id":"mendonca-2013-cenostigma-macrophyllum","source":"mendonca-2013","name":"Cenostigma macrophyllum, total aerial dry biomass from ground-level diameter (Table 2)","output":{"quantity":"agb"},"expression":"-0.823377 + 0.129639 * DRC^2","published":{"expression":"-0.823377 + 0.129639 * DAS^2","units":{"DAS":"cm"},"variables":{"DAS":"DRC"},"output_unit":"kg"},"taxon":{"level":"species","name":"Cenostigma macrophyllum","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"site","countries":["BR"],"place":"Casa Nova and Remanso, northern Bahia, lower-middle São Francisco (caatinga arbustivo-arbórea)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":15,"r2":0.931,"method":"regression; model chosen among literature models and Backward/Forward stepwise fits by residual plots, S%, t test and R2"},"evidence":[{"field":"expression","quote":"MS=-0,823377+(0,129639*D²)","locator":"Table 2, p. 360"},{"field":"fit.n_trees","quote":"amostrados 15 indivíduos, sendo três para cada classe de diâmetro, com exceção da espécie Chamaecrista belemii, em que foram amostrados 30 indivíduos","locator":"Ajuste das equações de regressão, p. 357"},{"field":"fit.r2","quote":"93,1 (R²)","locator":"Table 2, p. 360"}],"check":[{"inputs":{"DRC":4},"expected":1.25085,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"DRC":8},"expected":7.47352,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"DRC":14},"expected":24.5859,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2 prints R2 as a percentage. D is diameter at ground level (DAS, 'diâmetro ao nível do solo', cm), mapped to DRC; H is total height in m; MS is dry mass in kg (Table 2 footnote). 'DH' and 'DH2' are read as D*H and D*H^2, and 'D2H' as D^2*H (variables listed on p. 358 as DAS*H, DAS*H2, DAS2*H). Total aerial dry biomass (leaves, branches, trunk). Diameter range of the sampled trees printed as 3,8 a 15 cm (ground-level diameter, so not entered as a DBH range): use inside that range. Equations were also fitted by diameter class for all species pooled (Table 3); those are not included here."},{"id":"mendonca-2013-chamaecrista-belemii","source":"mendonca-2013","name":"Chamaecrista belemii, total aerial dry biomass from ground-level diameter and height (Table 2)","output":{"quantity":"agb"},"expression":"0.722088 - 0.439452 * DRC + 1.57947 * H + 0.763683 * H^2 + 1.04003 * DRC * H + 0.4694498 * DRC * H^2","published":{"expression":"0.722088 - 0.439452 * DAS + 1.57947 * H + 0.763683 * H^2 + 1.04003 * DAS * H + 0.4694498 * DAS * H^2","units":{"DAS":"cm","H":"m"},"variables":{"DAS":"DRC"},"output_unit":"kg"},"taxon":{"level":"species","name":"Chamaecrista belemii","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"site","countries":["BR"],"place":"Casa Nova and Remanso, northern Bahia, lower-middle São Francisco (caatinga arbustivo-arbórea)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":30,"r2":0.791,"method":"regression; model chosen among literature models and Backward/Forward stepwise fits by residual plots, S%, t test and R2"},"evidence":[{"field":"expression","quote":"MS= 0,722088+(-0,439452*D)+(1,57947*H)+(0,763683*H²)+(1,04003*DH)+ (0,4694498*DH²)","locator":"Table 2, p. 360"},{"field":"fit.n_trees","quote":"amostrados 15 indivíduos, sendo três para cada classe de diâmetro, com exceção da espécie Chamaecrista belemii, em que foram amostrados 30 indivíduos","locator":"Ajuste das equações de regressão, p. 357"},{"field":"fit.r2","quote":"79,1 (R²)","locator":"Table 2, p. 360"}],"check":[{"inputs":{"DRC":1.5,"H":1},"expected":4.67028,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"DRC":2.5,"H":1.5},"expected":10.2517,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"DRC":3.5,"H":2},"expected":19.2502,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2 prints R2 as a percentage. D is diameter at ground level (DAS, 'diâmetro ao nível do solo', cm), mapped to DRC; H is total height in m; MS is dry mass in kg (Table 2 footnote). 'DH' and 'DH2' are read as D*H and D*H^2, and 'D2H' as D^2*H (variables listed on p. 358 as DAS*H, DAS*H2, DAS2*H). Total aerial dry biomass (leaves, branches, trunk). Diameter range of the sampled trees printed as 1 a 4 cm (ground-level diameter, so not entered as a DBH range): use inside that range. Sampled with 30 individuals; very small plants (1 to 4 cm). Equations were also fitted by diameter class for all species pooled (Table 3); those are not included here."},{"id":"mendonca-2013-copaifera-coriacea","source":"mendonca-2013","name":"Copaifera coriacea, total aerial dry biomass from ground-level diameter (Table 2)","output":{"quantity":"agb"},"expression":"-11.947 + 3.01001 * DRC","published":{"expression":"-11.947 + 3.01001 * DAS","units":{"DAS":"cm"},"variables":{"DAS":"DRC"},"output_unit":"kg"},"taxon":{"level":"species","name":"Copaifera coriacea","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"site","countries":["BR"],"place":"Casa Nova and Remanso, northern Bahia, lower-middle São Francisco (caatinga arbustivo-arbórea)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":15,"r2":0.967,"method":"regression; model chosen among literature models and Backward/Forward stepwise fits by residual plots, S%, t test and R2"},"evidence":[{"field":"expression","quote":"MS= -11,947+(3,01001*D)","locator":"Table 2, p. 360"},{"field":"fit.n_trees","quote":"amostrados 15 indivíduos, sendo três para cada classe de diâmetro, com exceção da espécie Chamaecrista belemii, em que foram amostrados 30 indivíduos","locator":"Ajuste das equações de regressão, p. 357"},{"field":"fit.r2","quote":"96,7 (R²)","locator":"Table 2, p. 360"}],"check":[{"inputs":{"DRC":5},"expected":3.10305,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"DRC":10},"expected":18.1531,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"DRC":16},"expected":36.2132,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2 prints R2 as a percentage. D is diameter at ground level (DAS, 'diâmetro ao nível do solo', cm), mapped to DRC; H is total height in m; MS is dry mass in kg (Table 2 footnote). 'DH' and 'DH2' are read as D*H and D*H^2, and 'D2H' as D^2*H (variables listed on p. 358 as DAS*H, DAS*H2, DAS2*H). Total aerial dry biomass (leaves, branches, trunk). Diameter range of the sampled trees printed as 3,8 a 18 cm (ground-level diameter, so not entered as a DBH range): use inside that range. Equations were also fitted by diameter class for all species pooled (Table 3); those are not included here."},{"id":"mendonca-2013-maytenus-rigida","source":"mendonca-2013","name":"Maytenus rigida, total aerial dry biomass from ground-level diameter and height (Table 2)","output":{"quantity":"agb"},"expression":"-125.773 + 30.7247 * DRC + 43.1044 * H + 1.60801 * DRC^2 - 10.2886 * DRC * H + 0.577549 * DRC^2 * H","published":{"expression":"-125.773 + 30.7247 * DAS + 43.1044 * H + 1.60801 * DAS^2 - 10.2886 * DAS * H + 0.577549 * DAS^2 * H","units":{"DAS":"cm","H":"m"},"variables":{"DAS":"DRC"},"output_unit":"kg"},"taxon":{"level":"species","name":"Maytenus rigida","family":"Celastraceae","group":"broadleaf"},"region":{"scope":"site","countries":["BR"],"place":"Casa Nova and Remanso, northern Bahia, lower-middle São Francisco (caatinga arbustivo-arbórea)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":15,"r2":0.996,"method":"regression; model chosen among literature models and Backward/Forward stepwise fits by residual plots, S%, t test and R2"},"evidence":[{"field":"expression","quote":"MS = -125,773+(30,7247*D)+(43,1044*H)+ +(1,60801*D²)+(-10,2886*DH)+(0,577549*D²H)","locator":"Table 2, p. 360"},{"field":"fit.n_trees","quote":"amostrados 15 indivíduos, sendo três para cada classe de diâmetro, com exceção da espécie Chamaecrista belemii, em que foram amostrados 30 indivíduos","locator":"Ajuste das equações de regressão, p. 357"},{"field":"fit.r2","quote":"99,6 (R²)","locator":"Table 2, p. 360"}],"check":[{"inputs":{"DRC":6,"H":3},"expected":122.957,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"DRC":10,"H":4},"expected":334.168,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"DRC":14,"H":5},"expected":680.861,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2 prints R2 as a percentage. D is diameter at ground level (DAS, 'diâmetro ao nível do solo', cm), mapped to DRC; H is total height in m; MS is dry mass in kg (Table 2 footnote). 'DH' and 'DH2' are read as D*H and D*H^2, and 'D2H' as D^2*H (variables listed on p. 358 as DAS*H, DAS*H2, DAS2*H). Total aerial dry biomass (leaves, branches, trunk). Diameter range of the sampled trees printed as 5 a 15 cm (ground-level diameter, so not entered as a DBH range): use inside that range. Equations were also fitted by diameter class for all species pooled (Table 3); those are not included here."},{"id":"mendonca-2013-ruprechtia-glauca","source":"mendonca-2013","name":"Ruprechtia glauca, total aerial dry biomass from ground-level diameter (Table 2)","output":{"quantity":"agb"},"expression":"-2.77842 + 1.37031 * DRC","published":{"expression":"-2.77842 + 1.37031 * DAS","units":{"DAS":"cm"},"variables":{"DAS":"DRC"},"output_unit":"kg"},"taxon":{"level":"species","name":"Ruprechtia glauca","family":"Polygonaceae","group":"broadleaf"},"region":{"scope":"site","countries":["BR"],"place":"Casa Nova and Remanso, northern Bahia, lower-middle São Francisco (caatinga arbustivo-arbórea)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":15,"r2":0.955,"method":"regression; model chosen among literature models and Backward/Forward stepwise fits by residual plots, S%, t test and R2"},"evidence":[{"field":"expression","quote":"MS = -2,77842+(1,37031*D)","locator":"Table 2, p. 360"},{"field":"fit.n_trees","quote":"amostrados 15 indivíduos, sendo três para cada classe de diâmetro, com exceção da espécie Chamaecrista belemii, em que foram amostrados 30 indivíduos","locator":"Ajuste das equações de regressão, p. 357"},{"field":"fit.r2","quote":"95,5 (R²)","locator":"Table 2, p. 360"}],"check":[{"inputs":{"DRC":4},"expected":2.70282,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"DRC":10},"expected":10.9247,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"DRC":16},"expected":19.1465,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2 prints R2 as a percentage. D is diameter at ground level (DAS, 'diâmetro ao nível do solo', cm), mapped to DRC; H is total height in m; MS is dry mass in kg (Table 2 footnote). 'DH' and 'DH2' are read as D*H and D*H^2, and 'D2H' as D^2*H (variables listed on p. 358 as DAS*H, DAS*H2, DAS2*H). Total aerial dry biomass (leaves, branches, trunk). Diameter range of the sampled trees printed as 2,5 a 18 cm (ground-level diameter, so not entered as a DBH range): use inside that range. Equations were also fitted by diameter class for all species pooled (Table 3); those are not included here."},{"id":"mendonca-2013-strychnos-rubiginosa","source":"mendonca-2013","name":"Strychnos rubiginosa, total aerial dry biomass from ground-level diameter (Table 2)","output":{"quantity":"agb"},"expression":"0.286847 * DRC^1.59815","published":{"expression":"0.286847 * DAS^1.59815","units":{"DAS":"cm"},"variables":{"DAS":"DRC"},"output_unit":"kg"},"taxon":{"level":"species","name":"Strychnos rubiginosa","family":"Loganiaceae","group":"broadleaf"},"region":{"scope":"site","countries":["BR"],"place":"Casa Nova and Remanso, northern Bahia, lower-middle São Francisco (caatinga arbustivo-arbórea)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":15,"method":"regression; model chosen among literature models and Backward/Forward stepwise fits by residual plots, S%, t test and R2"},"evidence":[{"field":"expression","quote":"MS = 0,286847*(D1,59815)","locator":"Table 2, p. 360"},{"field":"fit.n_trees","quote":"amostrados 15 indivíduos, sendo três para cada classe de diâmetro, com exceção da espécie Chamaecrista belemii, em que foram amostrados 30 indivíduos","locator":"Ajuste das equações de regressão, p. 357"}],"check":[{"inputs":{"DRC":4},"expected":2.62925,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"DRC":8},"expected":7.96019,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"DRC":12},"expected":15.2175,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2 prints R2 as a percentage. D is diameter at ground level (DAS, 'diâmetro ao nível do solo', cm), mapped to DRC; H is total height in m; MS is dry mass in kg (Table 2 footnote). 'DH' and 'DH2' are read as D*H and D*H^2, and 'D2H' as D^2*H (variables listed on p. 358 as DAS*H, DAS*H2, DAS2*H). Total aerial dry biomass (leaves, branches, trunk). Diameter range of the sampled trees printed as 3,5 a 14 cm (ground-level diameter, so not entered as a DBH range): use inside that range. The printed 'D1,59815' has lost its superscript; read as D^1.59815 (the Nelson et al. power model MS = b0*DAS^b1 used in the paper). S, R2 and F are not printed for this species. Equations were also fitted by diameter class for all species pooled (Table 3); those are not included here."},{"id":"mendonca-2013-xymenia-americana","source":"mendonca-2013","name":"Ximenia americana, total aerial dry biomass from ground-level diameter and height (Table 2)","output":{"quantity":"agb"},"expression":"-2.81201 + 0.0817217 * DRC * H^2","published":{"expression":"-2.81201 + 0.0817217 * DAS * H^2","units":{"DAS":"cm","H":"m"},"variables":{"DAS":"DRC"},"output_unit":"kg"},"taxon":{"level":"species","name":"Ximenia americana","family":"Olacaceae","group":"broadleaf"},"region":{"scope":"site","countries":["BR"],"place":"Casa Nova and Remanso, northern Bahia, lower-middle São Francisco (caatinga arbustivo-arbórea)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":15,"r2":0.955,"method":"regression; model chosen among literature models and Backward/Forward stepwise fits by residual plots, S%, t test and R2"},"evidence":[{"field":"expression","quote":"MS = -2,81201+(0,0817217*DH²)","locator":"Table 2, p. 360"},{"field":"fit.n_trees","quote":"amostrados 15 indivíduos, sendo três para cada classe de diâmetro, com exceção da espécie Chamaecrista belemii, em que foram amostrados 30 indivíduos","locator":"Ajuste das equações de regressão, p. 357"},{"field":"fit.r2","quote":"95,5 (R²)","locator":"Table 2, p. 360"}],"check":[{"inputs":{"DRC":5,"H":2},"expected":-1.17758,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"DRC":8,"H":3},"expected":3.07195,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"DRC":11,"H":4},"expected":11.571,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2 prints R2 as a percentage. D is diameter at ground level (DAS, 'diâmetro ao nível do solo', cm), mapped to DRC; H is total height in m; MS is dry mass in kg (Table 2 footnote). 'DH' and 'DH2' are read as D*H and D*H^2, and 'D2H' as D^2*H (variables listed on p. 358 as DAS*H, DAS*H2, DAS2*H). Total aerial dry biomass (leaves, branches, trunk). Diameter range of the sampled trees printed as 4 a 12 cm (ground-level diameter, so not entered as a DBH range): use inside that range. Equations were also fitted by diameter class for all species pooled (Table 3); those are not included here."},{"id":"meng-2019-agb","source":"meng-2019","name":"Natural larch aboveground biomass from dbh and h (Table 5, with CF)","output":{"quantity":"agb"},"expression":"1.008 * (exp(-4.270) * (D^2 * H)^1.001 + exp(-4.016) * (D^2 * H)^0.825 + exp(-4.832) * D^2.601 + exp(-3.080) * D^1.833)","published":{"expression":"1.008 * (exp(-4.270) * (dbh^2 * h)^1.001 + exp(-4.016) * (dbh^2 * h)^0.825 + exp(-4.832) * dbh^2.601 + exp(-3.080) * dbh^1.833)","units":{"dbh":"cm","h":"m"},"variables":{"dbh":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix gmelinii","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Western Daxing'anling Mountains, Inner Mongolia, China","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":58,"dbh_min_cm":3.2,"dbh_max_cm":52,"h_min_m":4.91,"h_max_m":27.72,"cf":1.008,"method":"seemingly unrelated regression (SUR) on log-transformed equations, additive system"},"evidence":[{"field":"expression","quote":"Aboveground lnWag = ln(e−4.270(dbh2 × h)1.001 + e−4.016(dbh2 × h)0.825 + e−4.832dbh2.601 + e−3.080dbh1.833); CF 1.008","locator":"Table 5, Aboveground row"},{"field":"fit.n_trees","quote":"A total of 58 trees were randomly selected","locator":"Section 2.2"}],"check":[{"inputs":{"D":8,"H":7},"expected":13.0386,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":22,"H":17},"expected":186.1802,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":45,"H":25},"expected":1069.4248,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equations reported in Table 5 (best additive system, log scale: ln W = a + b ln x); correction factor CF from Table 5 applied multiplicatively to exp(ln W) (Section 2.6 describes a multiplicative correction factor; the printed Eq. 9 was not readable in the HTML copy, so the multiplicative use is the paper's own description). ln is the natural logarithm. n and ranges from Table 1 / Section 2.2. Wood and bark are separate component equations in the paper (not added individually); they are summed inside the aboveground equation. The Discussion and Conclusions note that the CFs are small (<1.06) and \"can be ignored\", and that applying a CF breaks the additivity of the component equations; the CF is applied here because the paper prints it per equation in Table 5 and describes it as a multiplicative correction (Section 2.6)."},{"id":"meng-2019-branch","source":"meng-2019","name":"Natural larch branch biomass from dbh (Table 5, with CF)","output":{"quantity":"branch_biomass"},"expression":"1.056 * exp(-4.832 + 2.601 * ln(D))","published":{"expression":"1.056 * exp(-4.832 + 2.601 * ln(dbh))","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix gmelinii","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Western Daxing'anling Mountains, Inner Mongolia, China","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":58,"dbh_min_cm":3.2,"dbh_max_cm":52,"h_min_m":4.91,"h_max_m":27.72,"cf":1.056,"method":"seemingly unrelated regression (SUR) on log-transformed equations, additive system"},"evidence":[{"field":"expression","quote":"Branch lnWbr = −4.832 + 2.601ln(dbh); CF 1.056","locator":"Table 5, Branch row"},{"field":"fit.n_trees","quote":"A total of 58 trees were randomly selected","locator":"Section 2.2"}],"check":[{"inputs":{"D":8,"H":7},"expected":1.8797,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":22,"H":17},"expected":26.1092,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":45,"H":25},"expected":167.9418,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equations reported in Table 5 (best additive system, log scale: ln W = a + b ln x); correction factor CF from Table 5 applied multiplicatively to exp(ln W) (Section 2.6 describes a multiplicative correction factor; the printed Eq. 9 was not readable in the HTML copy, so the multiplicative use is the paper's own description). ln is the natural logarithm. n and ranges from Table 1 / Section 2.2. Wood and bark are separate component equations in the paper (not added individually); they are summed inside the aboveground equation. The Discussion and Conclusions note that the CFs are small (<1.06) and \"can be ignored\", and that applying a CF breaks the additivity of the component equations; the CF is applied here because the paper prints it per equation in Table 5 and describes it as a multiplicative correction (Section 2.6)."},{"id":"meng-2019-foliage","source":"meng-2019","name":"Natural larch leaf (foliage) biomass from dbh (Table 5, with CF)","output":{"quantity":"foliage_biomass"},"expression":"1.038 * exp(-3.080 + 1.833 * ln(D))","published":{"expression":"1.038 * exp(-3.080 + 1.833 * ln(dbh))","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Larix gmelinii","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Western Daxing'anling Mountains, Inner Mongolia, China","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":58,"dbh_min_cm":3.2,"dbh_max_cm":52,"h_min_m":4.91,"h_max_m":27.72,"cf":1.038,"method":"seemingly unrelated regression (SUR) on log-transformed equations, additive system"},"evidence":[{"field":"expression","quote":"Leaf lnWlf = −3.080 + 1.833ln(dbh); CF 1.038","locator":"Table 5, Leaf row"},{"field":"fit.n_trees","quote":"A total of 58 trees were randomly selected","locator":"Section 2.2"}],"check":[{"inputs":{"D":8,"H":7},"expected":2.1574,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":22,"H":17},"expected":13.7794,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":45,"H":25},"expected":51.1574,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equations reported in Table 5 (best additive system, log scale: ln W = a + b ln x); correction factor CF from Table 5 applied multiplicatively to exp(ln W) (Section 2.6 describes a multiplicative correction factor; the printed Eq. 9 was not readable in the HTML copy, so the multiplicative use is the paper's own description). ln is the natural logarithm. n and ranges from Table 1 / Section 2.2. Wood and bark are separate component equations in the paper (not added individually); they are summed inside the aboveground equation. The Discussion and Conclusions note that the CFs are small (<1.06) and \"can be ignored\", and that applying a CF breaks the additivity of the component equations; the CF is applied here because the paper prints it per equation in Table 5 and describes it as a multiplicative correction (Section 2.6)."},{"id":"meng-2021-agb-d","source":"meng-2021","name":"Oak aboveground biomass from D, additive system 1 (Table 4)","output":{"quantity":"agb"},"expression":"0.050 * D^2.473 + 0.022 * D^2.249 + 0.011 * D^2.772 + 0.019 * D^1.964","published":{"expression":"0.050 * D^2.473 + 0.022 * D^2.249 + 0.011 * D^2.772 + 0.019 * D^1.964","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"genus","name":"Quercus (Q. mongolica and Q. wutaishanica)","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CN"],"place":"Daxing'anling, Xiaoxing'anling and Changbai mountains, NE China","biomes":["temperate","boreal","montane"]},"stand":"natural","fit":{"n_trees":159,"dbh_min_cm":1.5,"dbh_max_cm":33,"h_min_m":1.4,"h_max_m":20.5,"method":"weighted nonlinear seemingly unrelated regression (NSUR), additive system"},"evidence":[{"field":"expression","quote":"Aboveground Wag = 0.050D2.473 + 0.022D2.249 + 0.011D2.772 + 0.019D1.964","locator":"Table 4, System 1"},{"field":"fit.n_trees","quote":"A total of 159 sample trees consisting of 120 Mongolian oak and 39 Liaodong oak","locator":"Abstract"}],"check":[{"inputs":{"D":5,"H":4},"expected":4.8983,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":15,"H":9},"expected":74.1145,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":28,"H":16},"expected":355.2933,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Fitted on 120 Mongolian oak and 39 Liaodong oak trees (Table 1; D 1.5-33.0 cm). Exponents are printed flattened in the HTML text; read as D^exponent. No R2 recorded (adjusted R2 only). Sum of wood (inside bark), bark, branch and foliage."},{"id":"meng-2021-branch-d","source":"meng-2021","name":"Oak branch biomass from D, additive system 1 (Table 4)","output":{"quantity":"branch_biomass"},"expression":"0.011 * D^2.772","published":{"expression":"0.011 * D^2.772","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"genus","name":"Quercus (Q. mongolica and Q. wutaishanica)","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CN"],"place":"Daxing'anling, Xiaoxing'anling and Changbai mountains, NE China","biomes":["temperate","boreal","montane"]},"stand":"natural","fit":{"n_trees":159,"dbh_min_cm":1.5,"dbh_max_cm":33,"h_min_m":1.4,"h_max_m":20.5,"method":"weighted nonlinear seemingly unrelated regression (NSUR), additive system"},"evidence":[{"field":"expression","quote":"Branch Wbr = 0.011D2.772","locator":"Table 4, System 1"},{"field":"fit.n_trees","quote":"A total of 159 sample trees","locator":"Abstract"}],"check":[{"inputs":{"D":5,"H":4},"expected":0.9527,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":15,"H":9},"expected":20.0225,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":28,"H":16},"expected":112.9574,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Fitted on 120 Mongolian oak and 39 Liaodong oak trees (Table 1; D 1.5-33.0 cm). Exponents are printed flattened in the HTML text; read as D^exponent. No R2 recorded (adjusted R2 only)."},{"id":"meng-2021-branch-dcw","source":"meng-2021","name":"Oak branch biomass from D and crown width, additive system 2 (Table 4)","output":{"quantity":"branch_biomass"},"expression":"0.017 * D^2.156 * CD^0.870","published":{"expression":"0.017 * D^2.156 * CW^0.870","units":{"D":"cm","CW":"m"},"variables":{"CW":"CD"},"output_unit":"kg"},"taxon":{"level":"genus","name":"Quercus (Q. mongolica and Q. wutaishanica)","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CN"],"place":"Daxing'anling, Xiaoxing'anling and Changbai mountains, NE China","biomes":["temperate","boreal","montane"]},"stand":"natural","fit":{"n_trees":159,"dbh_min_cm":1.5,"dbh_max_cm":33,"h_min_m":1.4,"h_max_m":20.5,"method":"weighted nonlinear seemingly unrelated regression (NSUR), additive system"},"evidence":[{"field":"expression","quote":"Branch Wbr = 0.017D2.156CW0.870","locator":"Table 4, System 2"},{"field":"fit.n_trees","quote":"A total of 159 sample trees","locator":"Abstract"}],"check":[{"inputs":{"D":5,"CD":1.5},"expected":0.7774,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":15,"CD":3.5},"expected":17.3556,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":28,"CD":6},"expected":106.5401,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Fitted on 120 Mongolian oak and 39 Liaodong oak trees (Table 1; D 1.5-33.0 cm). Exponents are printed flattened in the HTML text; read as D^exponent. No R2 recorded (adjusted R2 only). CW is crown width (twice the mean crown radius); mapped to canonical CD (crown diameter). Crown width range 0.45-9.70 m (Table 1)."},{"id":"meng-2021-foliage-d","source":"meng-2021","name":"Oak foliage biomass from D, additive system 1 (Table 4)","output":{"quantity":"foliage_biomass"},"expression":"0.019 * D^1.964","published":{"expression":"0.019 * D^1.964","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"genus","name":"Quercus (Q. mongolica and Q. wutaishanica)","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CN"],"place":"Daxing'anling, Xiaoxing'anling and Changbai mountains, NE China","biomes":["temperate","boreal","montane"]},"stand":"natural","fit":{"n_trees":159,"dbh_min_cm":1.5,"dbh_max_cm":33,"h_min_m":1.4,"h_max_m":20.5,"method":"weighted nonlinear seemingly unrelated regression (NSUR), additive system"},"evidence":[{"field":"expression","quote":"Foliage Wfo = 0.019D1.964","locator":"Table 4, System 1"},{"field":"fit.n_trees","quote":"A total of 159 sample trees","locator":"Abstract"}],"check":[{"inputs":{"D":5,"H":4},"expected":0.4483,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":15,"H":9},"expected":3.8779,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":28,"H":16},"expected":13.2121,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Fitted on 120 Mongolian oak and 39 Liaodong oak trees (Table 1; D 1.5-33.0 cm). Exponents are printed flattened in the HTML text; read as D^exponent. No R2 recorded (adjusted R2 only)."},{"id":"meng-2021-foliage-dcw","source":"meng-2021","name":"Oak foliage biomass from D and crown width, additive system 2 (Table 4)","output":{"quantity":"foliage_biomass"},"expression":"0.023 * D^1.645 * CD^0.438","published":{"expression":"0.023 * D^1.645 * CW^0.438","units":{"D":"cm","CW":"m"},"variables":{"CW":"CD"},"output_unit":"kg"},"taxon":{"level":"genus","name":"Quercus (Q. mongolica and Q. wutaishanica)","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CN"],"place":"Daxing'anling, Xiaoxing'anling and Changbai mountains, NE China","biomes":["temperate","boreal","montane"]},"stand":"natural","fit":{"n_trees":159,"dbh_min_cm":1.5,"dbh_max_cm":33,"h_min_m":1.4,"h_max_m":20.5,"method":"weighted nonlinear seemingly unrelated regression (NSUR), additive system"},"evidence":[{"field":"expression","quote":"Foliage Wfo = 0.023D1.645CW0.438","locator":"Table 4, System 2"},{"field":"fit.n_trees","quote":"A total of 159 sample trees","locator":"Abstract"}],"check":[{"inputs":{"D":5,"CD":1.5},"expected":0.3878,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":15,"CD":3.5},"expected":3.4253,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":28,"CD":6},"expected":12.1097,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Fitted on 120 Mongolian oak and 39 Liaodong oak trees (Table 1; D 1.5-33.0 cm). Exponents are printed flattened in the HTML text; read as D^exponent. No R2 recorded (adjusted R2 only). CW is crown width; mapped to canonical CD. Crown width range 0.45-9.70 m (Table 1)."},{"id":"meng-2021-root-d","source":"meng-2021","name":"Oak root biomass from D (Table 3)","output":{"quantity":"bgb"},"expression":"0.086 * D^2.072","published":{"expression":"0.086 * D^2.072","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"genus","name":"Quercus (Q. mongolica and Q. wutaishanica)","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CN"],"place":"Daxing'anling, Xiaoxing'anling and Changbai mountains, NE China","biomes":["temperate","boreal","montane"]},"stand":"natural","fit":{"n_trees":53,"dbh_min_cm":1.5,"dbh_max_cm":32.8,"method":"weighted nonlinear regression (root equations fitted separately)"},"evidence":[{"field":"expression","quote":"Root D 0.086*** 2.072***","locator":"Table 3, Root, predictor D (selected: \"The equation with D as the only predictor was therefore most suitable for root biomass\")"},{"field":"fit.n_trees","quote":"53 trees with a D spanning 1.5-32.8 cm were selected for root biomass collection","locator":"Section 2.2"}],"check":[{"inputs":{"D":5},"expected":2.4142,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":15},"expected":23.5158,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":30},"expected":98.8766,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Root coefficients as listed in Table 3 for model W = b0*D^b1 (Table 3 coefficients; Table 3 caption: regression coefficients with weighting function). Root biomass is root plus stump dry biomass (Section 2.2). 53 excavated trees."},{"id":"miyakuni-2004-agb-a-10yr","source":"miyakuni-2004","name":"Planted Acacia mangium, West Java, aboveground biomass from D, 10-year stand (model A)","output":{"quantity":"agb"},"expression":"0.3944 * D^2.0568","published":{"expression":"0.3944 * dbh^2.0568","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Acacia mangium","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["ID"],"place":"Maribaya and Tenjo ranger districts (Parungpanjang), Perhutani, West Java","biomes":["tropical"]},"stand":"plantation","fit":{"n_trees":16,"r2":0.9032,"method":"log-linear least squares of Y = a·dbh^b"},"evidence":[{"field":"expression","quote":"Y = a·dbh^b; a = 0.3944, b = 2.0568, r2 = 0.9032","locator":"Table 5, model A, stand age 10"},{"field":"fit.n_trees","quote":"We selected 15 trees from the 3-year-old stand, 12 trees from the 5-year-old stand, 16 trees from the 8-year-old stand, and 16 trees from the 10-year-old stand","locator":"Destructive Sampling to Measure the Biomass of Individual Trees, p. 72"}],"check":[{"inputs":{"D":5},"expected":10.804,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":10},"expected":44.951,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":20},"expected":187.02,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Model A: 10-year-old stand. Fitted in log space (log-linear) and printed as a power law; the paper states no back-transformation correction factor and none is applied. The paper does not print the sampled dbh range. Aboveground biomass is the sum of the above-ground organs as defined by the authors (Yag)."},{"id":"miyakuni-2004-agb-a-3yr","source":"miyakuni-2004","name":"Planted Acacia mangium, West Java, aboveground biomass from D, 3-year stand (model A)","output":{"quantity":"agb"},"expression":"0.0414 * D^2.7523","published":{"expression":"0.0414 * dbh^2.7523","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Acacia mangium","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["ID"],"place":"Maribaya and Tenjo ranger districts (Parungpanjang), Perhutani, West Java","biomes":["tropical"]},"stand":"plantation","fit":{"n_trees":15,"r2":0.9727,"method":"log-linear least squares of Y = a·dbh^b"},"evidence":[{"field":"expression","quote":"Y = a·dbh^b; a = 0.0414, b = 2.7523, r2 = 0.9727","locator":"Table 5, model A, stand age 3"},{"field":"fit.n_trees","quote":"We selected 15 trees from the 3-year-old stand, 12 trees from the 5-year-old stand, 16 trees from the 8-year-old stand, and 16 trees from the 10-year-old stand","locator":"Destructive Sampling to Measure the Biomass of Individual Trees, p. 72"}],"check":[{"inputs":{"D":5},"expected":3.4736,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":10},"expected":23.405,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":20},"expected":157.7,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Model A: 3-year-old stand. Fitted in log space (log-linear) and printed as a power law; the paper states no back-transformation correction factor and none is applied. The paper does not print the sampled dbh range. Aboveground biomass is the sum of the above-ground organs as defined by the authors (Yag)."},{"id":"miyakuni-2004-agb-a-5yr","source":"miyakuni-2004","name":"Planted Acacia mangium, West Java, aboveground biomass from D, 5-year stand (model A)","output":{"quantity":"agb"},"expression":"0.2331 * D^2.1348","published":{"expression":"0.2331 * dbh^2.1348","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Acacia mangium","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["ID"],"place":"Maribaya and Tenjo ranger districts (Parungpanjang), Perhutani, West Java","biomes":["tropical"]},"stand":"plantation","fit":{"n_trees":12,"r2":0.9013,"method":"log-linear least squares of Y = a·dbh^b"},"evidence":[{"field":"expression","quote":"Y = a·dbh^b; a = 0.2331, b = 2.1348, r2 = 0.9013","locator":"Table 5, model A, stand age 5"},{"field":"fit.n_trees","quote":"We selected 15 trees from the 3-year-old stand, 12 trees from the 5-year-old stand, 16 trees from the 8-year-old stand, and 16 trees from the 10-year-old stand","locator":"Destructive Sampling to Measure the Biomass of Individual Trees, p. 72"}],"check":[{"inputs":{"D":5},"expected":7.2394,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":10},"expected":31.794,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":20},"expected":139.63,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Model A: 5-year-old stand. Fitted in log space (log-linear) and printed as a power law; the paper states no back-transformation correction factor and none is applied. The paper does not print the sampled dbh range. Aboveground biomass is the sum of the above-ground organs as defined by the authors (Yag)."},{"id":"miyakuni-2004-agb-a-8yr","source":"miyakuni-2004","name":"Planted Acacia mangium, West Java, aboveground biomass from D, 8-year stand (model A)","output":{"quantity":"agb"},"expression":"0.0904 * D^2.4906","published":{"expression":"0.0904 * dbh^2.4906","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Acacia mangium","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["ID"],"place":"Maribaya and Tenjo ranger districts (Parungpanjang), Perhutani, West Java","biomes":["tropical"]},"stand":"plantation","fit":{"n_trees":16,"r2":0.9027,"method":"log-linear least squares of Y = a·dbh^b"},"evidence":[{"field":"expression","quote":"Y = a·dbh^b; a = 0.0904, b = 2.4906, r2 = 0.9027","locator":"Table 5, model A, stand age 8"},{"field":"fit.n_trees","quote":"We selected 15 trees from the 3-year-old stand, 12 trees from the 5-year-old stand, 16 trees from the 8-year-old stand, and 16 trees from the 10-year-old stand","locator":"Destructive Sampling to Measure the Biomass of Individual Trees, p. 72"}],"check":[{"inputs":{"D":5},"expected":4.9776,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":10},"expected":27.975,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":20},"expected":157.22,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Model A: 8-year-old stand. Fitted in log space (log-linear) and printed as a power law; the paper states no back-transformation correction factor and none is applied. The paper does not print the sampled dbh range. Aboveground biomass is the sum of the above-ground organs as defined by the authors (Yag)."},{"id":"miyakuni-2004-agb-b-all-ages","source":"miyakuni-2004","name":"Planted Acacia mangium, West Java, aboveground biomass from D, all ages (model B)","output":{"quantity":"agb"},"expression":"0.0472 * D^2.7055","published":{"expression":"0.0472 * dbh^2.7055","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Acacia mangium","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["ID"],"place":"Maribaya and Tenjo ranger districts (Parungpanjang), Perhutani, West Java","biomes":["tropical"]},"stand":"plantation","fit":{"n_trees":59,"r2":0.9914,"method":"log-linear least squares of Y = a·dbh^b"},"evidence":[{"field":"expression","quote":"Y = a·dbh^b; a = 0.0472, b = 2.7055, r2 = 0.9914","locator":"Table 5, model B, stand age 3-10"},{"field":"fit.n_trees","quote":"We selected 15 trees from the 3-year-old stand, 12 trees from the 5-year-old stand, 16 trees from the 8-year-old stand, and 16 trees from the 10-year-old stand","locator":"Destructive Sampling to Measure the Biomass of Individual Trees, p. 72"}],"check":[{"inputs":{"D":5},"expected":3.6729,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":10},"expected":23.958,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":20},"expected":156.27,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Model B (the authors' recommended general equation): all four stand ages combined (3-10 yr). Fitted in log space (log-linear) and printed as a power law; the paper states no back-transformation correction factor and none is applied. The paper does not print the sampled dbh range. Aboveground biomass is the sum of the above-ground organs as defined by the authors (Yag)."},{"id":"miyakuni-2004-branch-b-all-ages","source":"miyakuni-2004","name":"Planted Acacia mangium, West Java, branch biomass from D, all ages (model B)","output":{"quantity":"branch_biomass"},"expression":"0.0046 * D^2.8669","published":{"expression":"0.0046 * dbh^2.8669","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Acacia mangium","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["ID"],"place":"Maribaya and Tenjo ranger districts (Parungpanjang), Perhutani, West Java","biomes":["tropical"]},"stand":"plantation","fit":{"n_trees":59,"r2":0.9359,"method":"log-linear least squares of Y = a·dbh^b"},"evidence":[{"field":"expression","quote":"Y = a·dbh^b; a = 0.0046, b = 2.8669, r2 = 0.9359","locator":"Table 3, model B, stand age 3-10"},{"field":"fit.n_trees","quote":"We selected 15 trees from the 3-year-old stand, 12 trees from the 5-year-old stand, 16 trees from the 8-year-old stand, and 16 trees from the 10-year-old stand","locator":"Destructive Sampling to Measure the Biomass of Individual Trees, p. 72"}],"check":[{"inputs":{"D":5},"expected":0.46412,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":10},"expected":3.3858,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":20},"expected":24.699,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Model B (the authors' recommended general equation): all four stand ages combined (3-10 yr). Fitted in log space (log-linear) and printed as a power law; the paper states no back-transformation correction factor and none is applied. The paper does not print the sampled dbh range. Branch biomass (Yb) includes dead branches still attached to the tree, as defined by the authors (p. 72)."},{"id":"miyakuni-2004-leaf-b-all-ages","source":"miyakuni-2004","name":"Planted Acacia mangium, West Java, leaf biomass from D, all ages (model B)","output":{"quantity":"foliage_biomass"},"expression":"0.0502 * D^1.5503","published":{"expression":"0.0502 * dbh^1.5503","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Acacia mangium","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["ID"],"place":"Maribaya and Tenjo ranger districts (Parungpanjang), Perhutani, West Java","biomes":["tropical"]},"stand":"plantation","fit":{"n_trees":59,"r2":0.735,"method":"log-linear least squares of Y = a·dbh^b"},"evidence":[{"field":"expression","quote":"Y = a·dbh^b; a = 0.0502, b = 1.5503, r2 = 0.735","locator":"Table 2, model B, stand age 3-10"},{"field":"fit.n_trees","quote":"We selected 15 trees from the 3-year-old stand, 12 trees from the 5-year-old stand, 16 trees from the 8-year-old stand, and 16 trees from the 10-year-old stand","locator":"Destructive Sampling to Measure the Biomass of Individual Trees, p. 72"}],"check":[{"inputs":{"D":5},"expected":0.60858,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":10},"expected":1.7824,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":20},"expected":5.2202,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Model B (the authors' recommended general equation): all four stand ages combined (3-10 yr). Fitted in log space (log-linear) and printed as a power law; the paper states no back-transformation correction factor and none is applied. The paper does not print the sampled dbh range. Aboveground biomass is the sum of the above-ground organs as defined by the authors (Yag)."},{"id":"miyakuni-2004-root-b-all-ages","source":"miyakuni-2004","name":"Planted Acacia mangium, West Java, root biomass from D, all ages (model B)","output":{"quantity":"bgb"},"expression":"0.0058 * D^2.821","published":{"expression":"0.0058 * dbh^2.821","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Acacia mangium","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["ID"],"place":"Maribaya and Tenjo ranger districts (Parungpanjang), Perhutani, West Java","biomes":["tropical"]},"stand":"plantation","fit":{"n_trees":59,"r2":0.9883,"method":"log-linear least squares of Y = a·dbh^b"},"evidence":[{"field":"expression","quote":"Y = a·dbh^b; a = 0.0058, b = 2.821, r2 = 0.9883","locator":"Table 6, model B, stand age 3-10"},{"field":"fit.n_trees","quote":"We selected 15 trees from the 3-year-old stand, 12 trees from the 5-year-old stand, 16 trees from the 8-year-old stand, and 16 trees from the 10-year-old stand","locator":"Destructive Sampling to Measure the Biomass of Individual Trees, p. 72"}],"check":[{"inputs":{"D":5},"expected":0.54353,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":10},"expected":3.8409,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":20},"expected":27.141,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Model B (the authors' recommended general equation): all four stand ages combined (3-10 yr). Fitted in log space (log-linear) and printed as a power law; the paper states no back-transformation correction factor and none is applied. The paper does not print the sampled dbh range. Aboveground biomass is the sum of the above-ground organs as defined by the authors (Yag)."},{"id":"miyakuni-2004-stem-b-all-ages","source":"miyakuni-2004","name":"Planted Acacia mangium, West Java, stem biomass from D, all ages (model B)","output":{"quantity":"stem_biomass"},"expression":"0.0323 * D^2.7515","published":{"expression":"0.0323 * dbh^2.7515","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Acacia mangium","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["ID"],"place":"Maribaya and Tenjo ranger districts (Parungpanjang), Perhutani, West Java","biomes":["tropical"]},"stand":"plantation","fit":{"n_trees":59,"r2":0.9921,"method":"log-linear least squares of Y = a·dbh^b"},"evidence":[{"field":"expression","quote":"Y = a·dbh^b; a = 0.0323, b = 2.7515, r2 = 0.9921","locator":"Table 4, model B, stand age 3-10"},{"field":"fit.n_trees","quote":"We selected 15 trees from the 3-year-old stand, 12 trees from the 5-year-old stand, 16 trees from the 8-year-old stand, and 16 trees from the 10-year-old stand","locator":"Destructive Sampling to Measure the Biomass of Individual Trees, p. 72"}],"check":[{"inputs":{"D":5},"expected":2.7066,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":10},"expected":18.226,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":20},"expected":122.74,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Model B (the authors' recommended general equation): all four stand ages combined (3-10 yr). Fitted in log space (log-linear) and printed as a power law; the paper states no back-transformation correction factor and none is applied. The paper does not print the sampled dbh range. Aboveground biomass is the sum of the above-ground organs as defined by the authors (Yag)."},{"id":"miyakuni-2004-total-b-all-ages","source":"miyakuni-2004","name":"Planted Acacia mangium, West Java, total (above + below) biomass from D, all ages (model B)","output":{"quantity":"total_biomass"},"expression":"0.0528 * D^2.7222","published":{"expression":"0.0528 * dbh^2.7222","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Acacia mangium","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["ID"],"place":"Maribaya and Tenjo ranger districts (Parungpanjang), Perhutani, West Java","biomes":["tropical"]},"stand":"plantation","fit":{"n_trees":59,"r2":0.992,"method":"log-linear least squares of Y = a·dbh^b"},"evidence":[{"field":"expression","quote":"Y = a·dbh^b; a = 0.0528, b = 2.7222, r2 = 0.992","locator":"Table 7, model B, stand age 3-10"},{"field":"fit.n_trees","quote":"We selected 15 trees from the 3-year-old stand, 12 trees from the 5-year-old stand, 16 trees from the 8-year-old stand, and 16 trees from the 10-year-old stand","locator":"Destructive Sampling to Measure the Biomass of Individual Trees, p. 72"}],"check":[{"inputs":{"D":5},"expected":4.2206,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":10},"expected":27.851,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":20},"expected":183.78,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Model B (the authors' recommended general equation): all four stand ages combined (3-10 yr). Fitted in log space (log-linear) and printed as a power law; the paper states no back-transformation correction factor and none is applied. The paper does not print the sampled dbh range. Aboveground biomass is the sum of the above-ground organs as defined by the authors (Yag)."},{"id":"monda-2015-agb-m1","source":"monda-2015","name":"AGB Model 1 (DBH, H, WD), peat swamp forest Sarawak","output":{"quantity":"agb"},"expression":"1.0487 * exp(-2.3785 + 1.7078 * ln(D) + 0.9704 * ln(H) + 0.6389 * ln(rho))","published":{"expression":"1.0487 * exp(-2.3785 + 1.7078 * ln(DBH) + 0.9704 * ln(H) + 0.6389 * ln(WD))","units":{"DBH":"cm","H":"m","WD":"g/cm3"},"variables":{"DBH":"D","WD":"rho"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Mixed tree species, tropical peat swamp forest","group":"broadleaf"},"region":{"scope":"site","countries":["MY"],"place":"Logged-over peat swamp forest, Sarawak (Alan Batu and other sites, PC1-PC3)","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":41,"dbh_min_cm":5.2,"dbh_max_cm":97,"cf":1.0487,"method":"log-log regression of dry weight on ln-transformed predictors, back-transformed and multiplied by the correction factor CF = exp(RSE²/2)"},"evidence":[{"field":"expression","quote":"Model 1: ln(DW)＝a＋b ln(DBH)＋c ln(H)＋d ln(WD)","locator":"Models section, p. 15"},{"field":"expression","quote":"Model 1 −2.3785 1.7078 *** 0.9704 * 0.6389 ns 0.9677 1.0487 25.65 0.00313","locator":"Table 5, Aboveground biomass, p. 19 (columns a, b, c, d, e, adjusted R2, CF, AIC, FI)"},{"field":"fit.n_trees","quote":"Aboveground biomass (n＝41)","locator":"Table 5"},{"field":"fit.dbh_max_cm","quote":"AGB data were obtained for trees ranging in DBH from 5.2 to 97.0 cm","locator":"Discussion, p. 20"}],"check":[{"inputs":{"D":10,"H":12,"rho":0.5},"expected":35.5133,"origin":"computed","note":"computed from the published form (coefficients and CF as printed)"},{"inputs":{"D":30,"H":22,"rho":0.6},"expected":469.0912,"origin":"computed","note":"computed from the published form (coefficients and CF as printed)"},{"inputs":{"D":60,"H":30,"rho":0.55},"expected":1958.5052,"origin":"computed","note":"computed from the published form (coefficients and CF as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Coefficients a-e as printed in Table 5; the e term enters with a minus sign per the model definitions. WD is wood density in Mg m-3, numerically equal to g/cm3. Back-transformed result multiplied by the printed CF. Adjusted R2 0.9677 is not entered as r2. DW is dry mass (kg) of the whole above- or belowground part; hollow cavity volume was measured separately and the models are fitted to the measured biomass of hollow trees."},{"id":"monda-2015-agb-m2","source":"monda-2015","name":"AGB Model 2 (DBH, H, WD and [ln(DBH)]²), peat swamp forest Sarawak","output":{"quantity":"agb"},"expression":"1.0425 * exp(-3.4804 + 3.0581 * ln(D) + 0.6242 * ln(H) + 0.6405 * ln(rho) - 0.2015 * ln(D)^2)","published":{"expression":"1.0425 * exp(-3.4804 + 3.0581 * ln(DBH) + 0.6242 * ln(H) + 0.6405 * ln(WD) - 0.2015 * ln(DBH)^2)","units":{"DBH":"cm","H":"m","WD":"g/cm3"},"variables":{"DBH":"D","WD":"rho"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Mixed tree species, tropical peat swamp forest","group":"broadleaf"},"region":{"scope":"site","countries":["MY"],"place":"Logged-over peat swamp forest, Sarawak (Alan Batu and other sites, PC1-PC3)","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":41,"dbh_min_cm":5.2,"dbh_max_cm":97,"cf":1.0425,"method":"log-log regression of dry weight on ln-transformed predictors, back-transformed and multiplied by the correction factor CF = exp(RSE²/2)"},"evidence":[{"field":"expression","quote":"Model 2: ln(DW)＝a＋b ln(DBH)＋c ln(H)＋d ln(WD)−e [ln(DBH)]2","locator":"Models section, p. 15"},{"field":"expression","quote":"Model 2 −3.4804 3.0581 *** 0.6242 ns 0.6405 ns 0.2015 ** 0.9717 1.0425 21.05 0.00293","locator":"Table 5, Aboveground biomass, p. 19 (columns a, b, c, d, e, adjusted R2, CF, AIC, FI)"},{"field":"fit.n_trees","quote":"Aboveground biomass (n＝41)","locator":"Table 5"},{"field":"fit.dbh_max_cm","quote":"AGB data were obtained for trees ranging in DBH from 5.2 to 97.0 cm","locator":"Discussion, p. 20"}],"check":[{"inputs":{"D":10,"H":12,"rho":0.5},"expected":38.1506,"origin":"computed","note":"computed from the published form (coefficients and CF as printed)"},{"inputs":{"D":30,"H":22,"rho":0.6},"expected":509.6312,"origin":"computed","note":"computed from the published form (coefficients and CF as printed)"},{"inputs":{"D":60,"H":30,"rho":0.55},"expected":1710.212,"origin":"computed","note":"computed from the published form (coefficients and CF as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Coefficients a-e as printed in Table 5; the e term enters with a minus sign per the model definitions. WD is wood density in Mg m-3, numerically equal to g/cm3. Back-transformed result multiplied by the printed CF. Adjusted R2 0.9717 is not entered as r2. DW is dry mass (kg) of the whole above- or belowground part; hollow cavity volume was measured separately and the models are fitted to the measured biomass of hollow trees."},{"id":"monda-2015-agb-m3","source":"monda-2015","name":"AGB Model 3 (DBH, H and [ln(DBH)]²), peat swamp forest Sarawak","output":{"quantity":"agb"},"expression":"1.0444 * exp(-3.8903 + 3.17 * ln(D) + 0.5108 * ln(H) - 0.2013 * ln(D)^2)","published":{"expression":"1.0444 * exp(-3.8903 + 3.17 * ln(DBH) + 0.5108 * ln(H) - 0.2013 * ln(DBH)^2)","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Mixed tree species, tropical peat swamp forest","group":"broadleaf"},"region":{"scope":"site","countries":["MY"],"place":"Logged-over peat swamp forest, Sarawak (Alan Batu and other sites, PC1-PC3)","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":41,"dbh_min_cm":5.2,"dbh_max_cm":97,"cf":1.0444,"method":"log-log regression of dry weight on ln-transformed predictors, back-transformed and multiplied by the correction factor CF = exp(RSE²/2)"},"evidence":[{"field":"expression","quote":"Model 3: ln(DW)＝a＋b ln(DBH)＋c ln(H)−e [ln(DBH)]2","locator":"Models section, p. 15"},{"field":"expression","quote":"Model 3 −3.8903 3.1700 *** 0.5108 ns 0.2013 ** 0.9704 1.0444 21.99 0.00300","locator":"Table 5, Aboveground biomass, p. 19 (columns a, b, c, d, e, adjusted R2, CF, AIC, FI)"},{"field":"fit.n_trees","quote":"Aboveground biomass (n＝41)","locator":"Table 5"},{"field":"fit.dbh_max_cm","quote":"AGB data were obtained for trees ranging in DBH from 5.2 to 97.0 cm","locator":"Discussion, p. 20"}],"check":[{"inputs":{"D":10,"H":12},"expected":38.6426,"origin":"computed","note":"computed from the published form (coefficients and CF as printed)"},{"inputs":{"D":30,"H":22},"expected":485.4981,"origin":"computed","note":"computed from the published form (coefficients and CF as printed)"},{"inputs":{"D":60,"H":30},"expected":1799.0647,"origin":"computed","note":"computed from the published form (coefficients and CF as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Coefficients a-e as printed in Table 5; the e term enters with a minus sign per the model definitions. WD is wood density in Mg m-3, numerically equal to g/cm3. Back-transformed result multiplied by the printed CF. Adjusted R2 0.9704 is not entered as r2. DW is dry mass (kg) of the whole above- or belowground part; hollow cavity volume was measured separately and the models are fitted to the measured biomass of hollow trees."},{"id":"monda-2015-agb-m4","source":"monda-2015","name":"AGB Model 4 (DBH, WD and [ln(DBH)]²), peat swamp forest Sarawak","output":{"quantity":"agb"},"expression":"1.0452 * exp(-3.1574 + 3.7215 * ln(D) + 0.4931 * ln(rho) - 0.2618 * ln(D)^2)","published":{"expression":"1.0452 * exp(-3.1574 + 3.7215 * ln(DBH) + 0.4931 * ln(WD) - 0.2618 * ln(DBH)^2)","units":{"DBH":"cm","WD":"g/cm3"},"variables":{"DBH":"D","WD":"rho"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Mixed tree species, tropical peat swamp forest","group":"broadleaf"},"region":{"scope":"site","countries":["MY"],"place":"Logged-over peat swamp forest, Sarawak (Alan Batu and other sites, PC1-PC3)","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":41,"dbh_min_cm":5.2,"dbh_max_cm":97,"cf":1.0452,"method":"log-log regression of dry weight on ln-transformed predictors, back-transformed and multiplied by the correction factor CF = exp(RSE²/2)"},"evidence":[{"field":"expression","quote":"Model 4: ln(DW)＝a＋b ln(DBH)＋d ln(WD)−e [ln(DBH)]2","locator":"Models section, p. 15"},{"field":"expression","quote":"Model 4 −3.1574 3.7215 *** 0.4931 ns 0.2618 ** 0.9699 1.0452 22.74 0.00303","locator":"Table 5, Aboveground biomass, p. 19 (columns a, b, c, d, e, adjusted R2, CF, AIC, FI)"},{"field":"fit.n_trees","quote":"Aboveground biomass (n＝41)","locator":"Table 5"},{"field":"fit.dbh_max_cm","quote":"AGB data were obtained for trees ranging in DBH from 5.2 to 97.0 cm","locator":"Discussion, p. 20"}],"check":[{"inputs":{"D":10,"rho":0.5},"expected":41.5148,"origin":"computed","note":"computed from the published form (coefficients and CF as printed)"},{"inputs":{"D":30,"rho":0.6},"expected":525.2825,"origin":"computed","note":"computed from the published form (coefficients and CF as printed)"},{"inputs":{"D":60,"rho":0.55},"expected":1703.4189,"origin":"computed","note":"computed from the published form (coefficients and CF as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Coefficients a-e as printed in Table 5; the e term enters with a minus sign per the model definitions. WD is wood density in Mg m-3, numerically equal to g/cm3. Back-transformed result multiplied by the printed CF. Adjusted R2 0.9699 is not entered as r2. DW is dry mass (kg) of the whole above- or belowground part; hollow cavity volume was measured separately and the models are fitted to the measured biomass of hollow trees."},{"id":"monda-2015-agb-m5","source":"monda-2015","name":"AGB Model 5 (DBH only), peat swamp forest Sarawak","output":{"quantity":"agb"},"expression":"1.0581 * exp(-1.4927 + 2.225 * ln(D))","published":{"expression":"1.0581 * exp(-1.4927 + 2.225 * ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Mixed tree species, tropical peat swamp forest","group":"broadleaf"},"region":{"scope":"site","countries":["MY"],"place":"Logged-over peat swamp forest, Sarawak (Alan Batu and other sites, PC1-PC3)","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":41,"dbh_min_cm":5.2,"dbh_max_cm":97,"cf":1.0581,"method":"log-log regression of dry weight on ln-transformed predictors, back-transformed and multiplied by the correction factor CF = exp(RSE²/2)"},"evidence":[{"field":"expression","quote":"Model 5: ln(DW)＝a＋b ln(DBH)","locator":"Models section, p. 15"},{"field":"expression","quote":"Model 5 −1.4927 2.2250 *** 0.9615 1.0581 30.92 0.00342","locator":"Table 5, Aboveground biomass, p. 19 (columns a, b, c, d, e, adjusted R2, CF, AIC, FI)"},{"field":"fit.n_trees","quote":"Aboveground biomass (n＝41)","locator":"Table 5"},{"field":"fit.dbh_max_cm","quote":"AGB data were obtained for trees ranging in DBH from 5.2 to 97.0 cm","locator":"Discussion, p. 20"}],"check":[{"inputs":{"D":10},"expected":39.926,"origin":"computed","note":"computed from the published form (coefficients and CF as printed)"},{"inputs":{"D":30},"expected":460.0978,"origin":"computed","note":"computed from the published form (coefficients and CF as printed)"},{"inputs":{"D":60},"expected":2151.0072,"origin":"computed","note":"computed from the published form (coefficients and CF as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Coefficients a-e as printed in Table 5; the e term enters with a minus sign per the model definitions. WD is wood density in Mg m-3, numerically equal to g/cm3. Back-transformed result multiplied by the printed CF. Adjusted R2 0.9615 is not entered as r2. DW is dry mass (kg) of the whole above- or belowground part; hollow cavity volume was measured separately and the models are fitted to the measured biomass of hollow trees."},{"id":"monda-2015-agb-m6","source":"monda-2015","name":"AGB Model 6 (DBH and [ln(DBH)]²), peat swamp forest Sarawak","output":{"quantity":"agb"},"expression":"1.0459 * exp(-3.5339 + 3.7146 * ln(D) - 0.2529 * ln(D)^2)","published":{"expression":"1.0459 * exp(-3.5339 + 3.7146 * ln(DBH) - 0.2529 * ln(DBH)^2)","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Mixed tree species, tropical peat swamp forest","group":"broadleaf"},"region":{"scope":"site","countries":["MY"],"place":"Logged-over peat swamp forest, Sarawak (Alan Batu and other sites, PC1-PC3)","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":41,"dbh_min_cm":5.2,"dbh_max_cm":97,"cf":1.0459,"method":"log-log regression of dry weight on ln-transformed predictors, back-transformed and multiplied by the correction factor CF = exp(RSE²/2)"},"evidence":[{"field":"expression","quote":"Model 6: ln(DW)＝a＋b ln(DBH)−e [ln(DBH)]2","locator":"Models section, p. 15"},{"field":"expression","quote":"Model 6 −3.5339 3.7146 *** 0.2529 ** 0.9694 1.0459 21.99 0.00305","locator":"Table 5, Aboveground biomass, p. 19 (columns a, b, c, d, e, adjusted R2, CF, AIC, FI)"},{"field":"fit.n_trees","quote":"Aboveground biomass (n＝41)","locator":"Table 5"},{"field":"fit.dbh_max_cm","quote":"AGB data were obtained for trees ranging in DBH from 5.2 to 97.0 cm","locator":"Discussion, p. 20"}],"check":[{"inputs":{"D":10},"expected":41.4012,"origin":"computed","note":"computed from the published form (coefficients and CF as printed)"},{"inputs":{"D":30},"expected":502.4429,"origin":"computed","note":"computed from the published form (coefficients and CF as printed)"},{"inputs":{"D":60},"expected":1772.7745,"origin":"computed","note":"computed from the published form (coefficients and CF as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Coefficients a-e as printed in Table 5; the e term enters with a minus sign per the model definitions. WD is wood density in Mg m-3, numerically equal to g/cm3. Back-transformed result multiplied by the printed CF. Adjusted R2 0.9694 is not entered as r2. DW is dry mass (kg) of the whole above- or belowground part; hollow cavity volume was measured separately and the models are fitted to the measured biomass of hollow trees."},{"id":"monda-2015-bgb-m1","source":"monda-2015","name":"BGB Model 1 (DBH, H, WD), peat swamp forest Sarawak","output":{"quantity":"bgb"},"expression":"1.1334 * exp(-4.0218 + 2.2177 * ln(D) + 0.5784 * ln(H) + 1.1541 * ln(rho))","published":{"expression":"1.1334 * exp(-4.0218 + 2.2177 * ln(DBH) + 0.5784 * ln(H) + 1.1541 * ln(WD))","units":{"DBH":"cm","H":"m","WD":"g/cm3"},"variables":{"DBH":"D","WD":"rho"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Mixed tree species, tropical peat swamp forest","group":"broadleaf"},"region":{"scope":"site","countries":["MY"],"place":"Logged-over peat swamp forest, Sarawak (Alan Batu and other sites, PC1-PC3)","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":32,"dbh_min_cm":5.2,"dbh_max_cm":110.8,"cf":1.1334,"method":"log-log regression of dry weight on ln-transformed predictors, back-transformed and multiplied by the correction factor CF = exp(RSE²/2)"},"evidence":[{"field":"expression","quote":"Model 1: ln(DW)＝a＋b ln(DBH)＋c ln(H)＋d ln(WD)","locator":"Models section, p. 15"},{"field":"expression","quote":"Model 1 −4.0218 2.2177 *** 0.5784 ns 1.1541 ns 0.9521 1.1334 52.25 0.02437","locator":"Table 5, Belowground biomass, p. 19 (columns a, b, c, d, e, adjusted R2, CF, AIC, FI)"},{"field":"fit.n_trees","quote":"Belowground biomass (n＝32)","locator":"Table 5"},{"field":"fit.dbh_max_cm","quote":"BGB data for trees ranging in DBH from 5.2 to 110.8 cm","locator":"Discussion, p. 20"}],"check":[{"inputs":{"D":10,"H":12,"rho":0.5},"expected":6.3419,"origin":"computed","note":"computed from the published form (coefficients and CF as printed)"},{"inputs":{"D":30,"H":22,"rho":0.6},"expected":127.049,"origin":"computed","note":"computed from the published form (coefficients and CF as printed)"},{"inputs":{"D":60,"H":30,"rho":0.55},"expected":639.5334,"origin":"computed","note":"computed from the published form (coefficients and CF as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Coefficients a-e as printed in Table 5; the e term enters with a minus sign per the model definitions. WD is wood density in Mg m-3, numerically equal to g/cm3. Back-transformed result multiplied by the printed CF. Adjusted R2 0.9521 is not entered as r2. DW is dry mass (kg) of the whole above- or belowground part; hollow cavity volume was measured separately and the models are fitted to the measured biomass of hollow trees."},{"id":"monda-2015-bgb-m5","source":"monda-2015","name":"BGB Model 5 (DBH only), peat swamp forest Sarawak","output":{"quantity":"bgb"},"expression":"1.1373 * exp(-4.2149 + 2.6109 * ln(D))","published":{"expression":"1.1373 * exp(-4.2149 + 2.6109 * ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Mixed tree species, tropical peat swamp forest","group":"broadleaf"},"region":{"scope":"site","countries":["MY"],"place":"Logged-over peat swamp forest, Sarawak (Alan Batu and other sites, PC1-PC3)","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":32,"dbh_min_cm":5.2,"dbh_max_cm":110.8,"cf":1.1373,"method":"log-log regression of dry weight on ln-transformed predictors, back-transformed and multiplied by the correction factor CF = exp(RSE²/2)"},"evidence":[{"field":"expression","quote":"Model 5: ln(DW)＝a＋b ln(DBH)","locator":"Models section, p. 15"},{"field":"expression","quote":"Model 5 −4.2149 2.6109 *** 0.9508 1.1373 51.31 0.02466","locator":"Table 5, Belowground biomass, p. 19 (columns a, b, c, d, e, adjusted R2, CF, AIC, FI)"},{"field":"fit.n_trees","quote":"Belowground biomass (n＝32)","locator":"Table 5"},{"field":"fit.dbh_max_cm","quote":"BGB data for trees ranging in DBH from 5.2 to 110.8 cm","locator":"Discussion, p. 20"}],"check":[{"inputs":{"D":10},"expected":6.8591,"origin":"computed","note":"computed from the published form (coefficients and CF as printed)"},{"inputs":{"D":30},"expected":120.7767,"origin":"computed","note":"computed from the published form (coefficients and CF as printed)"},{"inputs":{"D":60},"expected":737.8062,"origin":"computed","note":"computed from the published form (coefficients and CF as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Coefficients a-e as printed in Table 5; the e term enters with a minus sign per the model definitions. WD is wood density in Mg m-3, numerically equal to g/cm3. Back-transformed result multiplied by the printed CF. Adjusted R2 0.9508 is not entered as r2. DW is dry mass (kg) of the whole above- or belowground part; hollow cavity volume was measured separately and the models are fitted to the measured biomass of hollow trees."},{"id":"monda-2015-bgb-m6","source":"monda-2015","name":"BGB Model 6 (DBH and [ln(DBH)]²), peat swamp forest Sarawak","output":{"quantity":"bgb"},"expression":"1.1267 * exp(-6.1049 + 3.9957 * ln(D) - 0.2322 * ln(D)^2)","published":{"expression":"1.1267 * exp(-6.1049 + 3.9957 * ln(DBH) - 0.2322 * ln(DBH)^2)","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Mixed tree species, tropical peat swamp forest","group":"broadleaf"},"region":{"scope":"site","countries":["MY"],"place":"Logged-over peat swamp forest, Sarawak (Alan Batu and other sites, PC1-PC3)","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":32,"dbh_min_cm":5.2,"dbh_max_cm":110.8,"cf":1.1267,"method":"log-log regression of dry weight on ln-transformed predictors, back-transformed and multiplied by the correction factor CF = exp(RSE²/2)"},"evidence":[{"field":"expression","quote":"Model 6: ln(DW)＝a＋b ln(DBH)−e [ln(DBH)]2","locator":"Models section, p. 15"},{"field":"expression","quote":"Model 6 −6.1049 3.9957 *** 0.2322 ns 0.9544 1.1267 49.81 0.02378","locator":"Table 5, Belowground biomass, p. 19 (columns a, b, c, d, e, adjusted R2, CF, AIC, FI)"},{"field":"fit.n_trees","quote":"Belowground biomass (n＝32)","locator":"Table 5"},{"field":"fit.dbh_max_cm","quote":"BGB data for trees ranging in DBH from 5.2 to 110.8 cm","locator":"Discussion, p. 20"}],"check":[{"inputs":{"D":10},"expected":7.2698,"origin":"computed","note":"computed from the published form (coefficients and CF as printed)"},{"inputs":{"D":30},"expected":136.7883,"origin":"computed","note":"computed from the published form (coefficients and CF as printed)"},{"inputs":{"D":60},"expected":653.0439,"origin":"computed","note":"computed from the published form (coefficients and CF as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Coefficients a-e as printed in Table 5; the e term enters with a minus sign per the model definitions. WD is wood density in Mg m-3, numerically equal to g/cm3. Back-transformed result multiplied by the printed CF. Adjusted R2 0.9544 is not entered as r2. DW is dry mass (kg) of the whole above- or belowground part; hollow cavity volume was measured separately and the models are fitted to the measured biomass of hollow trees."},{"id":"moore-2010-eq13","source":"moore-2010","name":"Radiata pine total AGB, weighted arithmetic model Eq. 13","output":{"quantity":"agb"},"expression":"0.1291 * D^2.2718","published":{"expression":"0.1291 * D^2.2718","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus radiata","family":"Pinaceae","group":"conifer"},"region":{"scope":"national","countries":["NZ"],"place":"New Zealand (13 studies, mainly North Island)","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":637,"dbh_min_cm":0.7,"dbh_max_cm":80.6,"h_max_m":42.1,"r2":0.88,"method":"weighted (varPower) mixed-effects model on the arithmetic scale; no back-transformation needed"},"evidence":[{"field":"expression","quote":"AGB = β0 Dβ1 (13)","locator":"Section 2.2, Eq. 13"},{"field":"expression","quote":"0.1291 | 2.2718","locator":"Table II, row Eq. 13 (parameter estimates)"},{"field":"fit.n_trees","quote":"biomass measurements for 637 individual radiata pine trees from 13 different studies","locator":"Section 2.1"},{"field":"fit.r2","quote":"0.88","locator":"Table II, R2 column, Eq. 13"}],"check":[{"inputs":{"D":10},"expected":24.1394,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":25},"expected":193.538,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":50},"expected":934.6442,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"D in cm, H in m, AGB in kg. Fitted directly on the arithmetic scale, so no correction factor. Fit ranges are the pooled data (Table I overall). Eq. 18 under-predicts large trees according to the paper (Section 3.2)."},{"id":"moore-2010-eq14","source":"moore-2010","name":"Radiata pine total AGB, weighted arithmetic model Eq. 14","output":{"quantity":"agb"},"expression":"0.1039 * (D^2 * H)^0.8229","published":{"expression":"0.1039 * (D^2 * H)^0.8229","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus radiata","family":"Pinaceae","group":"conifer"},"region":{"scope":"national","countries":["NZ"],"place":"New Zealand (13 studies, mainly North Island)","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":637,"dbh_min_cm":0.7,"dbh_max_cm":80.6,"h_max_m":42.1,"r2":0.94,"method":"weighted (varPower) mixed-effects model on the arithmetic scale; no back-transformation needed"},"evidence":[{"field":"expression","quote":"AGB = β0 (D2H)β1 (14)","locator":"Section 2.2, Eq. 14"},{"field":"expression","quote":"0.1039 | 0.8229","locator":"Table II, row Eq. 14 (parameter estimates)"},{"field":"fit.n_trees","quote":"biomass measurements for 637 individual radiata pine trees from 13 different studies","locator":"Section 2.1"},{"field":"fit.r2","quote":"0.94","locator":"Table II, R2 column, Eq. 14"}],"check":[{"inputs":{"D":10,"H":9},"expected":28.0325,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":25,"H":20},"expected":244.3221,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":50,"H":35},"expected":1211.6968,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"D in cm, H in m, AGB in kg. Fitted directly on the arithmetic scale, so no correction factor. Fit ranges are the pooled data (Table I overall). Eq. 18 under-predicts large trees according to the paper (Section 3.2)."},{"id":"moore-2010-eq15","source":"moore-2010","name":"Radiata pine total AGB, weighted arithmetic model Eq. 15","output":{"quantity":"agb"},"expression":"0.0944 * D^1.5286 * H","published":{"expression":"0.0944 * D^1.5286 * H","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus radiata","family":"Pinaceae","group":"conifer"},"region":{"scope":"national","countries":["NZ"],"place":"New Zealand (13 studies, mainly North Island)","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":637,"dbh_min_cm":0.7,"dbh_max_cm":80.6,"h_max_m":42.1,"r2":0.95,"method":"weighted (varPower) mixed-effects model on the arithmetic scale; no back-transformation needed"},"evidence":[{"field":"expression","quote":"AGB = β0 Dβ1 H (15)","locator":"Section 2.2, Eq. 15"},{"field":"expression","quote":"0.0944 | 1.5286","locator":"Table II, row Eq. 15 (parameter estimates)"},{"field":"fit.n_trees","quote":"biomass measurements for 637 individual radiata pine trees from 13 different studies","locator":"Section 2.1"},{"field":"fit.r2","quote":"0.95","locator":"Table II, R2 column, Eq. 15"}],"check":[{"inputs":{"D":10,"H":9},"expected":28.6955,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":25,"H":20},"expected":258.7576,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":50,"H":35},"expected":1306.4283,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"D in cm, H in m, AGB in kg. 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Fitted directly on the arithmetic scale, so no correction factor. Fit ranges are the pooled data (Table I overall). Eq. 18 under-predicts large trees according to the paper (Section 3.2)."},{"id":"moore-2010-eq17","source":"moore-2010","name":"Radiata pine total AGB, weighted arithmetic model Eq. 17","output":{"quantity":"agb"},"expression":"0.0977 * D^2.0362 * H^0.3845","published":{"expression":"0.0977 * D^2.0362 * H^0.3845","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus radiata","family":"Pinaceae","group":"conifer"},"region":{"scope":"national","countries":["NZ"],"place":"New Zealand (13 studies, mainly North Island)","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":637,"dbh_min_cm":0.7,"dbh_max_cm":80.6,"h_max_m":42.1,"r2":0.95,"method":"weighted (varPower) mixed-effects model on the arithmetic scale; no back-transformation needed"},"evidence":[{"field":"expression","quote":"AGB = β0 Dβ1 Hβ2 (17)","locator":"Section 2.2, Eq. 17"},{"field":"expression","quote":"0.0977 | 2.0362 | 0.3845","locator":"Table II, row Eq. 17 (parameter estimates)"},{"field":"fit.n_trees","quote":"biomass measurements for 637 individual radiata pine trees from 13 different studies","locator":"Section 2.1"},{"field":"fit.r2","quote":"0.95","locator":"Table II, R2 column, Eq. 17"}],"check":[{"inputs":{"D":10,"H":9},"expected":24.7173,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":25,"H":20},"expected":217.0831,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":50,"H":35},"expected":1104.1586,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"D in cm, H in m, AGB in kg. Fitted directly on the arithmetic scale, so no correction factor. Fit ranges are the pooled data (Table I overall). Eq. 18 under-predicts large trees according to the paper (Section 3.2)."},{"id":"moore-2010-eq18","source":"moore-2010","name":"Radiata pine total AGB, weighted arithmetic model Eq. 18","output":{"quantity":"agb"},"expression":"69.4057 + 0.2877 * D^2","published":{"expression":"69.4057 + 0.2877 * D^2","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus radiata","family":"Pinaceae","group":"conifer"},"region":{"scope":"national","countries":["NZ"],"place":"New Zealand (13 studies, mainly North Island)","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":637,"dbh_min_cm":0.7,"dbh_max_cm":80.6,"h_max_m":42.1,"r2":0.78,"method":"weighted (varPower) mixed-effects model on the arithmetic scale; no back-transformation needed"},"evidence":[{"field":"expression","quote":"AGB = β0 + β1 D2 (18)","locator":"Section 2.2, Eq. 18"},{"field":"expression","quote":"69.4057 | 0.2877","locator":"Table II, row Eq. 18 (parameter estimates)"},{"field":"fit.n_trees","quote":"biomass measurements for 637 individual radiata pine trees from 13 different studies","locator":"Section 2.1"},{"field":"fit.r2","quote":"0.78","locator":"Table II, R2 column, Eq. 18"}],"check":[{"inputs":{"D":10},"expected":98.1757,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":25},"expected":249.2182,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":50},"expected":788.6557,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"D in cm, H in m, AGB in kg. Fitted directly on the arithmetic scale, so no correction factor. Fit ranges are the pooled data (Table I overall). Eq. 18 under-predicts large trees according to the paper (Section 3.2)."},{"id":"moore-2010-eq19","source":"moore-2010","name":"Radiata pine total AGB, weighted arithmetic model Eq. 19","output":{"quantity":"agb"},"expression":"2.0597 + 0.0185 * D^2 * H","published":{"expression":"2.0597 + 0.0185 * D^2 * H","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus radiata","family":"Pinaceae","group":"conifer"},"region":{"scope":"national","countries":["NZ"],"place":"New Zealand (13 studies, mainly North Island)","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":637,"dbh_min_cm":0.7,"dbh_max_cm":80.6,"h_max_m":42.1,"r2":0.94,"method":"weighted (varPower) mixed-effects model on the arithmetic scale; no back-transformation needed"},"evidence":[{"field":"expression","quote":"AGB = β0 + β1 D2H (19)","locator":"Section 2.2, Eq. 19"},{"field":"expression","quote":"2.0597 | 0.0185","locator":"Table II, row Eq. 19 (parameter estimates)"},{"field":"fit.n_trees","quote":"biomass measurements for 637 individual radiata pine trees from 13 different studies","locator":"Section 2.1"},{"field":"fit.r2","quote":"0.94","locator":"Table II, R2 column, Eq. 19"}],"check":[{"inputs":{"D":10,"H":9},"expected":18.7097,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":25,"H":20},"expected":233.3097,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":50,"H":35},"expected":1620.8097,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"D in cm, H in m, AGB in kg. Fitted directly on the arithmetic scale, so no correction factor. Fit ranges are the pooled data (Table I overall). Eq. 18 under-predicts large trees according to the paper (Section 3.2)."},{"id":"moore-2010-eq20","source":"moore-2010","name":"Radiata pine total AGB, weighted arithmetic model Eq. 20","output":{"quantity":"agb"},"expression":"0.7013 + 0.0807 * D^2 * H^0.5","published":{"expression":"0.7013 + 0.0807 * D^2 * H^0.5","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus radiata","family":"Pinaceae","group":"conifer"},"region":{"scope":"national","countries":["NZ"],"place":"New Zealand (13 studies, mainly North Island)","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":637,"dbh_min_cm":0.7,"dbh_max_cm":80.6,"h_max_m":42.1,"r2":0.97,"method":"weighted (varPower) mixed-effects model on the arithmetic scale; no back-transformation needed"},"evidence":[{"field":"expression","quote":"AGB = β0 + β1 D2H0.5 (20)","locator":"Section 2.2, Eq. 20"},{"field":"expression","quote":"0.7013 | 0.0807","locator":"Table II, row Eq. 20 (parameter estimates)"},{"field":"fit.n_trees","quote":"biomass measurements for 637 individual radiata pine trees from 13 different studies","locator":"Section 2.1"},{"field":"fit.r2","quote":"0.97","locator":"Table II, R2 column, Eq. 20"}],"check":[{"inputs":{"D":10,"H":9},"expected":24.9113,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":25,"H":20},"expected":226.2647,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":50,"H":35},"expected":1194.2704,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"D in cm, H in m, AGB in kg. Fitted directly on the arithmetic scale, so no correction factor. Fit ranges are the pooled data (Table I overall). Eq. 18 under-predicts large trees according to the paper (Section 3.2)."},{"id":"moore-2010-eq3","source":"moore-2010","name":"Radiata pine total AGB, log model Eq. 3 (ln D)","output":{"quantity":"agb"},"expression":"exp(-1.9400 + 2.1824 * ln(D)) * 1.137791","published":{"expression":"exp(-1.9400 + 2.1824 * ln(D)) * 1.0474 * 1.0863","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus radiata","family":"Pinaceae","group":"conifer"},"region":{"scope":"national","countries":["NZ"],"place":"New Zealand (13 studies, mainly North Island)","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":637,"dbh_min_cm":0.7,"dbh_max_cm":80.6,"h_max_m":42.1,"r2":0.92,"rse":0.2917,"cf":1.137791,"method":"linear mixed-effects model on ln-transformed data, back-transformed with modified smearing estimate cf1 x cf2"},"evidence":[{"field":"expression","quote":"ln AGB = β0 + β1 ln D (3)","locator":"Section 2.2, Eq. 3"},{"field":"expression","quote":"–1.9400 | 2.1824","locator":"Table II, row Eq. 3 (parameter estimates)"},{"field":"fit.cf","quote":"1.0474 | 1.0863","locator":"Table III, row Eq. 3 (cf1 | cf2)"},{"field":"fit.n_trees","quote":"biomass measurements for 637 individual radiata pine trees from 13 different studies","locator":"Section 2.1"},{"field":"fit.r2","quote":"0.92","locator":"Table II, R2 column, Eq. 3"}],"check":[{"inputs":{"D":10},"expected":24.8846,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":25},"expected":183.8211,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":50},"expected":834.3789,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"D in cm, H in m, AGB in kg, natural log (the paper defines ln as natural). Back-transformed with the modified smearing estimate exp(Xb) cf1 cf2 (Eq. 11); cf1 and cf2 are as printed in Table III and applied as their product. Fit ranges are the pooled data (Table I overall; the text says height from 1.47 m while Table I says 0.32 m, so no h_min given). rse is the RMSE column for the log models. In Eq. 9 the text labels the quadratic coefficient β3 but Table II lists it in the third parameter column."},{"id":"moore-2010-eq4","source":"moore-2010","name":"Radiata pine total AGB, log model Eq. 4 (ln D, (ln D)^2)","output":{"quantity":"agb"},"expression":"exp(-0.5816 + 1.1240 * ln(D) + 0.2030 * ln(D)^2) * 1.113593","published":{"expression":"exp(-0.5816 + 1.1240 * ln(D) + 0.2030 * ln(D)^2) * 1.0273 * 1.084","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus radiata","family":"Pinaceae","group":"conifer"},"region":{"scope":"national","countries":["NZ"],"place":"New Zealand (13 studies, mainly North Island)","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":637,"dbh_min_cm":0.7,"dbh_max_cm":80.6,"h_max_m":42.1,"r2":0.95,"rse":0.2332,"cf":1.113593,"method":"linear mixed-effects model on ln-transformed data, back-transformed with modified smearing estimate cf1 x cf2"},"evidence":[{"field":"expression","quote":"ln AGB = β0 + β1 ln D + β2 (ln D)2 (4)","locator":"Section 2.2, Eq. 4"},{"field":"expression","quote":"–0.5816 | 1.1240 | 0.2030","locator":"Table II, row Eq. 4 (parameter estimates)"},{"field":"fit.cf","quote":"1.0273 | 1.0840","locator":"Table III, row Eq. 4 (cf1 | cf2)"},{"field":"fit.n_trees","quote":"biomass measurements for 637 individual radiata pine trees from 13 different studies","locator":"Section 2.1"},{"field":"fit.r2","quote":"0.95","locator":"Table II, R2 column, Eq. 4"}],"check":[{"inputs":{"D":10},"expected":24.2977,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":25},"expected":190.057,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":50},"expected":1129.8071,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"D in cm, H in m, AGB in kg, natural log (the paper defines ln as natural). Back-transformed with the modified smearing estimate exp(Xb) cf1 cf2 (Eq. 11); cf1 and cf2 are as printed in Table III and applied as their product. Fit ranges are the pooled data (Table I overall; the text says height from 1.47 m while Table I says 0.32 m, so no h_min given). rse is the RMSE column for the log models. In Eq. 9 the text labels the quadratic coefficient β3 but Table II lists it in the third parameter column."},{"id":"moore-2010-eq5","source":"moore-2010","name":"Radiata pine total AGB, log model Eq. 5 (ln D, ln H)","output":{"quantity":"agb"},"expression":"exp(-2.1004 + 1.8594 * ln(D) + 0.4370 * ln(H)) * 1.109005","published":{"expression":"exp(-2.1004 + 1.8594 * ln(D) + 0.4370 * ln(H)) * 1.0382 * 1.0682","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus radiata","family":"Pinaceae","group":"conifer"},"region":{"scope":"national","countries":["NZ"],"place":"New Zealand (13 studies, mainly North Island)","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":637,"dbh_min_cm":0.7,"dbh_max_cm":80.6,"h_max_m":42.1,"r2":0.93,"rse":0.2709,"cf":1.109005,"method":"linear mixed-effects model on ln-transformed data, back-transformed with modified smearing estimate cf1 x cf2"},"evidence":[{"field":"expression","quote":"ln AGB = β0 + β1 ln D + β2 ln H (5)","locator":"Section 2.2, Eq. 5"},{"field":"expression","quote":"–2.1004 | 1.8594 | 0.4370","locator":"Table II, row Eq. 5 (parameter estimates)"},{"field":"fit.cf","quote":"1.0382 | 1.0682","locator":"Table III, row Eq. 5 (cf1 | cf2)"},{"field":"fit.n_trees","quote":"biomass measurements for 637 individual radiata pine trees from 13 different studies","locator":"Section 2.1"},{"field":"fit.r2","quote":"0.93","locator":"Table II, R2 column, Eq. 5"}],"check":[{"inputs":{"D":10,"H":9},"expected":25.6534,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":25,"H":20},"expected":199.8118,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":50,"H":35},"expected":925.8997,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"D in cm, H in m, AGB in kg, natural log (the paper defines ln as natural). Back-transformed with the modified smearing estimate exp(Xb) cf1 cf2 (Eq. 11); cf1 and cf2 are as printed in Table III and applied as their product. Fit ranges are the pooled data (Table I overall; the text says height from 1.47 m while Table I says 0.32 m, so no h_min given). rse is the RMSE column for the log models. In Eq. 9 the text labels the quadratic coefficient β3 but Table II lists it in the third parameter column."},{"id":"moore-2010-eq6","source":"moore-2010","name":"Radiata pine total AGB, log model Eq. 6 (ln D, (ln D)^2, ln H)","output":{"quantity":"agb"},"expression":"exp(-0.9753 + 1.0241 * ln(D) + 0.1811 * ln(D)^2 + 0.3399 * ln(H)) * 1.079649","published":{"expression":"exp(-0.9753 + 1.0241 * ln(D) + 0.1811 * ln(D)^2 + 0.3399 * ln(H)) * 1.0256 * 1.0527","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus radiata","family":"Pinaceae","group":"conifer"},"region":{"scope":"national","countries":["NZ"],"place":"New Zealand (13 studies, mainly North Island)","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":637,"dbh_min_cm":0.7,"dbh_max_cm":80.6,"h_max_m":42.1,"r2":0.95,"rse":0.2268,"cf":1.079649,"method":"linear mixed-effects model on ln-transformed data, back-transformed with modified smearing estimate cf1 x cf2"},"evidence":[{"field":"expression","quote":"ln AGB = β0 + β1 ln D + β2 (ln D)2 + β3 ln H (6)","locator":"Section 2.2, Eq. 6"},{"field":"expression","quote":"–0.9753 | 1.0241 | 0.1811 | 0.3399","locator":"Table II, row Eq. 6 (parameter estimates)"},{"field":"fit.cf","quote":"1.0256 | 1.0527","locator":"Table III, row Eq. 6 (cf1 | cf2)"},{"field":"fit.n_trees","quote":"biomass measurements for 637 individual radiata pine trees from 13 different studies","locator":"Section 2.1"},{"field":"fit.r2","quote":"0.95","locator":"Table II, R2 column, Eq. 6"}],"check":[{"inputs":{"D":10,"H":9},"expected":23.7225,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":25,"H":20},"expected":198.8285,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":50,"H":35},"expected":1197.082,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"D in cm, H in m, AGB in kg, natural log (the paper defines ln as natural). Back-transformed with the modified smearing estimate exp(Xb) cf1 cf2 (Eq. 11); cf1 and cf2 are as printed in Table III and applied as their product. Fit ranges are the pooled data (Table I overall; the text says height from 1.47 m while Table I says 0.32 m, so no h_min given). rse is the RMSE column for the log models. In Eq. 9 the text labels the quadratic coefficient β3 but Table II lists it in the third parameter column."},{"id":"moore-2010-eq7","source":"moore-2010","name":"Radiata pine total AGB, log model Eq. 7 (ln D, (ln D)^2, ln H, (ln H)^2)","output":{"quantity":"agb"},"expression":"exp(-0.9069 + 1.2273 * ln(D) + 0.1411 * ln(D)^2 - 0.0078 * ln(H) + 0.0840 * ln(H)^2) * 1.078311","published":{"expression":"exp(-0.9069 + 1.2273 * ln(D) + 0.1411 * ln(D)^2 - 0.0078 * ln(H) + 0.0840 * ln(H)^2) * 1.0254 * 1.0516","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus radiata","family":"Pinaceae","group":"conifer"},"region":{"scope":"national","countries":["NZ"],"place":"New Zealand (13 studies, mainly North Island)","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":637,"dbh_min_cm":0.7,"dbh_max_cm":80.6,"h_max_m":42.1,"r2":0.95,"rse":0.2266,"cf":1.078311,"method":"linear mixed-effects model on ln-transformed data, back-transformed with modified smearing estimate cf1 x cf2"},"evidence":[{"field":"expression","quote":"ln AGB = β0 + β1 ln D + β2 (ln D)2 + β3 ln H + β4 (ln H)2 (7)","locator":"Section 2.2, Eq. 7"},{"field":"expression","quote":"–0.9069 | 1.2273 | 0.1411 | –0.0078 | 0.0840","locator":"Table II, row Eq. 7 (parameter estimates)"},{"field":"fit.cf","quote":"1.0254 | 1.0516","locator":"Table III, row Eq. 7 (cf1 | cf2)"},{"field":"fit.n_trees","quote":"biomass measurements for 637 individual radiata pine trees from 13 different studies","locator":"Section 2.1"},{"field":"fit.r2","quote":"0.95","locator":"Table II, R2 column, Eq. 7"}],"check":[{"inputs":{"D":10,"H":9},"expected":22.8958,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":25,"H":20},"expected":202.6471,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":50,"H":35},"expected":1291.0043,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"D in cm, H in m, AGB in kg, natural log (the paper defines ln as natural). Back-transformed with the modified smearing estimate exp(Xb) cf1 cf2 (Eq. 11); cf1 and cf2 are as printed in Table III and applied as their product. Fit ranges are the pooled data (Table I overall; the text says height from 1.47 m while Table I says 0.32 m, so no h_min given). rse is the RMSE column for the log models. In Eq. 9 the text labels the quadratic coefficient β3 but Table II lists it in the third parameter column."},{"id":"moore-2010-eq8","source":"moore-2010","name":"Radiata pine total AGB, log model Eq. 8 (ln(D^2 H))","output":{"quantity":"agb"},"expression":"exp(-2.4150 + 0.8186 * ln(D^2 * H)) * 1.141319","published":{"expression":"exp(-2.4150 + 0.8186 * ln(D^2 * H)) * 1.0404 * 1.097","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus radiata","family":"Pinaceae","group":"conifer"},"region":{"scope":"national","countries":["NZ"],"place":"New Zealand (13 studies, mainly North Island)","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":637,"dbh_min_cm":0.7,"dbh_max_cm":80.6,"h_max_m":42.1,"r2":0.93,"rse":0.2768,"cf":1.141319,"method":"linear mixed-effects model on ln-transformed data, back-transformed with modified smearing estimate cf1 x cf2"},"evidence":[{"field":"expression","quote":"ln AGB = β0 + β1 ln D2H (8)","locator":"Section 2.2, Eq. 8"},{"field":"expression","quote":"–2.4150 | 0.8186","locator":"Table II, row Eq. 8 (parameter estimates)"},{"field":"fit.cf","quote":"1.0404 | 1.0970","locator":"Table III, row Eq. 8 (cf1 | cf2)"},{"field":"fit.n_trees","quote":"biomass measurements for 637 individual radiata pine trees from 13 different studies","locator":"Section 2.1"},{"field":"fit.r2","quote":"0.93","locator":"Table II, R2 column, Eq. 8"}],"check":[{"inputs":{"D":10,"H":9},"expected":26.7257,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":25,"H":20},"expected":230.3119,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":50,"H":35},"expected":1132.6968,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"D in cm, H in m, AGB in kg, natural log (the paper defines ln as natural). Back-transformed with the modified smearing estimate exp(Xb) cf1 cf2 (Eq. 11); cf1 and cf2 are as printed in Table III and applied as their product. Fit ranges are the pooled data (Table I overall; the text says height from 1.47 m while Table I says 0.32 m, so no h_min given). rse is the RMSE column for the log models. In Eq. 9 the text labels the quadratic coefficient β3 but Table II lists it in the third parameter column."},{"id":"moore-2010-eq9","source":"moore-2010","name":"Radiata pine total AGB, log model Eq. 9 (ln(D^2 H), its square)","output":{"quantity":"agb"},"expression":"exp(-1.1602 + 0.4859 * ln(D^2 * H) + 0.0219 * ln(D^2 * H)^2) * 1.096674","published":{"expression":"exp(-1.1602 + 0.4859 * ln(D^2 * H) + 0.0219 * ln(D^2 * H)^2) * 1.0281 * 1.0667","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus radiata","family":"Pinaceae","group":"conifer"},"region":{"scope":"national","countries":["NZ"],"place":"New Zealand (13 studies, mainly North Island)","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":637,"dbh_min_cm":0.7,"dbh_max_cm":80.6,"h_max_m":42.1,"r2":0.95,"rse":0.2383,"cf":1.096674,"method":"linear mixed-effects model on ln-transformed data, back-transformed with modified smearing estimate cf1 x cf2"},"evidence":[{"field":"expression","quote":"ln AGB = β0 + β1 ln D2H + β3 (ln D2H)2 (9)","locator":"Section 2.2, Eq. 9"},{"field":"expression","quote":"–1.1602 | 0.4859 | 0.0219","locator":"Table II, row Eq. 9 (parameter estimates)"},{"field":"fit.cf","quote":"1.0281 | 1.0667","locator":"Table III, row Eq. 9 (cf1 | cf2)"},{"field":"fit.n_trees","quote":"biomass measurements for 637 individual radiata pine trees from 13 different studies","locator":"Section 2.1"},{"field":"fit.r2","quote":"0.95","locator":"Table II, R2 column, Eq. 9"}],"check":[{"inputs":{"D":10,"H":9},"expected":25.8093,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":25,"H":20},"expected":236.2065,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":50,"H":35},"expected":1476.1223,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"D in cm, H in m, AGB in kg, natural log (the paper defines ln as natural). Back-transformed with the modified smearing estimate exp(Xb) cf1 cf2 (Eq. 11); cf1 and cf2 are as printed in Table III and applied as their product. Fit ranges are the pooled data (Table I overall; the text says height from 1.47 m while Table I says 0.32 m, so no h_min given). rse is the RMSE column for the log models. In Eq. 9 the text labels the quadratic coefficient β3 but Table II lists it in the third parameter column."},{"id":"morais-2014-vol-m1-gp","source":"morais-2014","name":"Cerrado total volume with bark from DBH and height, Goal Programming (model 1)","output":{"quantity":"total_volume"},"expression":"exp(-9.79192 + 2.44091 * ln(D) + 0.46566 * ln(H))","published":{"expression":"exp(-9.79192 + 2.44091 * ln(DBH) + 0.46566 * ln(Ht))","units":{"DBH":"cm","Ht":"m"},"variables":{"DBH":"D","Ht":"H"},"output_unit":"m3"},"taxon":{"level":"mixed","name":"Cerrado sensu stricto and campo cerrado woody species (99 species)","group":"mixed"},"region":{"scope":"regional","countries":["BR"],"place":"20 forest fragments, Minas Gerais (Inventário Florestal de Minas Gerais)","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":696,"method":"Goal Programming (lpsolve simplex) on ln-transformed Schumacher-Hall model"},"evidence":[{"field":"expression","quote":"Ln (Yi) = B0+ B1Ln(X1i) + B2Ln(X2i) ± Ln (Ɛi)","locator":"Eq. 1, p. 232"},{"field":"expression","quote":"Total volume with bark, model 1, GP: β0 -9.79192; β1 2.44091; β2 0.46566","locator":"Table 2, p. 234"},{"field":"input","quote":"DBH (1.30 meters from the soil)","locator":"Table 1, p. 232"},{"field":"fit.n_trees","quote":"adjustment data used for model adjustment [696 trees]","locator":"Methods, p. 233"}],"check":[{"inputs":{"D":10,"H":5},"expected":0.0326449,"origin":"computed","note":"computed from the Table 2 coefficients"},{"inputs":{"D":20,"H":8},"expected":0.220624,"origin":"computed","note":"computed from the Table 2 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Natural-log model as printed; the paper states no back-transformation correction factor, so none is applied. Volume is total volume with bark. Ht is total height. R² is the adjusted R² from the OLS rows (the paper leaves it blank for GP). The 868 trees were split into 696 for fitting and 172 for validation."},{"id":"morais-2014-vol-m1-ols","source":"morais-2014","name":"Cerrado total volume with bark from DBH and height, OLS (model 1)","output":{"quantity":"total_volume"},"expression":"exp(-9.76984 + 2.42049 * ln(D) + 0.48733 * ln(H))","published":{"expression":"exp(-9.76984 + 2.42049 * ln(DBH) + 0.48733 * ln(Ht))","units":{"DBH":"cm","Ht":"m"},"variables":{"DBH":"D","Ht":"H"},"output_unit":"m3"},"taxon":{"level":"mixed","name":"Cerrado sensu stricto and campo cerrado woody species (99 species)","group":"mixed"},"region":{"scope":"regional","countries":["BR"],"place":"20 forest fragments, Minas Gerais (Inventário Florestal de Minas Gerais)","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":696,"r2":0.98,"method":"Ordinary least squares on ln-transformed Schumacher-Hall model"},"evidence":[{"field":"expression","quote":"Ln (Yi) = B0+ B1Ln(X1i) + B2Ln(X2i) ± Ln (Ɛi)","locator":"Eq. 1, p. 232"},{"field":"expression","quote":"Total volume with bark, model 1, OLS: β0 -9.76984; β1 2.42049; β2 0.48733","locator":"Table 2, p. 234"},{"field":"input","quote":"DBH (1.30 meters from the soil)","locator":"Table 1, p. 232"},{"field":"fit.r2","quote":"R²aj. 0.98","locator":"Table 2, p. 234"},{"field":"fit.n_trees","quote":"adjustment data used for model adjustment [696 trees]","locator":"Methods, p. 233"}],"check":[{"inputs":{"D":10,"H":5},"expected":0.0329709,"origin":"computed","note":"computed from the Table 2 coefficients"},{"inputs":{"D":20,"H":8},"expected":0.221945,"origin":"computed","note":"computed from the Table 2 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Natural-log model as printed; the paper states no back-transformation correction factor, so none is applied. Volume is total volume with bark. Ht is total height. R² is the adjusted R² from the OLS rows (the paper leaves it blank for GP). The 868 trees were split into 696 for fitting and 172 for validation."},{"id":"morais-2014-vol-m4-gp","source":"morais-2014","name":"Cerrado total volume with bark from DBH only, Goal Programming (model 4)","output":{"quantity":"total_volume"},"expression":"exp(-9.56819 + 2.69739 * ln(D))","published":{"expression":"exp(-9.56819 + 2.69739 * ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m3"},"taxon":{"level":"mixed","name":"Cerrado sensu stricto and campo cerrado woody species (99 species)","group":"mixed"},"region":{"scope":"regional","countries":["BR"],"place":"20 forest fragments, Minas Gerais (Inventário Florestal de Minas Gerais)","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":696,"method":"Goal Programming (lpsolve simplex) on ln-transformed Schumacher-Hall model"},"evidence":[{"field":"expression","quote":"Ln (Yi) = B0+ B1Ln(X1i) ± Ln(Ɛi)","locator":"Eq. 2, p. 232"},{"field":"expression","quote":"Total volume with bark, model 4, GP: β0 -9.56819; β1 2.69739","locator":"Table 2, p. 234"},{"field":"input","quote":"DBH (1.30 meters from the soil)","locator":"Table 1, p. 232"},{"field":"fit.n_trees","quote":"adjustment data used for model adjustment [696 trees]","locator":"Methods, p. 233"}],"check":[{"inputs":{"D":10},"expected":0.034832,"origin":"computed","note":"computed from the Table 2 coefficients"},{"inputs":{"D":20},"expected":0.22593,"origin":"computed","note":"computed from the Table 2 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Natural-log model as printed; the paper states no back-transformation correction factor, so none is applied. Volume is total volume with bark. Ht is total height. R² is the adjusted R² from the OLS rows (the paper leaves it blank for GP). The 868 trees were split into 696 for fitting and 172 for validation."},{"id":"morais-2014-vol-m4-ols","source":"morais-2014","name":"Cerrado total volume with bark from DBH only, OLS (model 4)","output":{"quantity":"total_volume"},"expression":"exp(-9.48803 + 2.67035 * ln(D))","published":{"expression":"exp(-9.48803 + 2.67035 * ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m3"},"taxon":{"level":"mixed","name":"Cerrado sensu stricto and campo cerrado woody species (99 species)","group":"mixed"},"region":{"scope":"regional","countries":["BR"],"place":"20 forest fragments, Minas Gerais (Inventário Florestal de Minas Gerais)","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":696,"r2":0.97,"method":"Ordinary least squares on ln-transformed Schumacher-Hall model"},"evidence":[{"field":"expression","quote":"Ln (Yi) = B0+ B1Ln(X1i) ± Ln(Ɛi)","locator":"Eq. 2, p. 232"},{"field":"expression","quote":"Total volume with bark, model 4, OLS: β0 -9.48803; β1 2.67035","locator":"Table 2, p. 234"},{"field":"input","quote":"DBH (1.30 meters from the soil)","locator":"Table 1, p. 232"},{"field":"fit.r2","quote":"R²aj. 0.97","locator":"Table 2, p. 234"},{"field":"fit.n_trees","quote":"adjustment data used for model adjustment [696 trees]","locator":"Methods, p. 233"}],"check":[{"inputs":{"D":10},"expected":0.035461,"origin":"computed","note":"computed from the Table 2 coefficients"},{"inputs":{"D":20},"expected":0.225739,"origin":"computed","note":"computed from the Table 2 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Natural-log model as printed; the paper states no back-transformation correction factor, so none is applied. Volume is total volume with bark. Ht is total height. R² is the adjusted R² from the OLS rows (the paper leaves it blank for GP). The 868 trees were split into 696 for fitting and 172 for validation."},{"id":"mugasha-2013-agb-d","source":"mugasha-2013","name":"Tanzania miombo AGB, DBH only","output":{"quantity":"agb"},"expression":"0.1027 * D^2.4798","published":{"expression":"0.1027 * dbh^2.4798","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Miombo woodland trees","group":"broadleaf"},"region":{"scope":"national","countries":["TZ"],"place":"Miombo woodlands at 4 sites, Tanzania","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":167,"dbh_min_cm":1.1,"dbh_max_cm":110},"evidence":[{"field":"expression","quote":"Mugasha et al. [21] B = 0.1027 × dbh^2.4798 4 167 1.1–110 60","locator":"Kachamba et al. 2016, Table 3"}],"check":[{"inputs":{"D":20},"expected":172.93,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":60},"expected":2636.51,"origin":"computed","note":"hand-computed from the published form"}],"verification":"secondary","secondary_url":"https://doi.org/10.3390/f7020038","checked_at":"2026-11-01","notes":"Taken from Kachamba et al. 2016 (Table 3: 4 sites, 167 trees, dbh 1.1-110 cm, 60 species); the original is paywalled and was not read."},{"id":"mugasha-2013-agb-dh","source":"mugasha-2013","name":"Tanzania miombo AGB, DBH and height","output":{"quantity":"agb"},"expression":"0.0763 * D^2.2046 * H^0.4918","published":{"expression":"0.0763 * dbh^2.2046 * ht^0.4918","units":{"dbh":"cm","ht":"m"},"variables":{"dbh":"D","ht":"H"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Miombo woodland trees","group":"broadleaf"},"region":{"scope":"national","countries":["TZ"],"place":"Miombo woodlands at 4 sites, Tanzania","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":167,"dbh_min_cm":1.1,"dbh_max_cm":110},"evidence":[{"field":"expression","quote":"B = 0.0763 × dbh^2.2046 × ht^0.4918","locator":"Kachamba et al. 2016, Table 3"}],"check":[{"inputs":{"D":20,"H":12},"expected":191.21,"origin":"computed","note":"hand-computed from the published form"}],"verification":"secondary","secondary_url":"https://doi.org/10.3390/f7020038","checked_at":"2026-11-01","notes":"Taken from Kachamba et al. 2016 Table 3; the original is paywalled and was not read."},{"id":"mugasha-2016-agb-dindili-m10","source":"mugasha-2016","name":"Tanzania lowland forest, Dindili (dry lowland forest), D, H and wood density (model 10)","output":{"quantity":"agb"},"expression":"0.1014 * (rho * D^2 * H)^0.951","published":{"expression":"0.1014 * (WD * DBH^2 * HT)^0.951","units":{"WD":"g/cm3","DBH":"cm","HT":"m"},"variables":{"WD":"rho","DBH":"D","HT":"H"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Mixed lowland forest tree species","group":"broadleaf"},"region":{"scope":"site","countries":["TZ"],"place":"Dindili Forest Reserve, Morogoro, Tanzania (dry lowland forest)","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":30,"r2":0.89,"method":"maximum-likelihood non-linear regression with variance function"},"evidence":[{"field":"expression","quote":"Dindili forest 10 0.1014 0.9510 0.638 × dbh1.675 467.52 0.89 418.34","locator":"Table 5 (columns: a, b, c, error, RMSE, R2, AIC)"},{"field":"published.units","quote":"where Y is the volume (m3 tree−1) or biomass (kg tree−1); WD is wood basic density (g cm−3); a, b, and c are model parameters to be estimated.","locator":"Section 2.6.2"},{"field":"fit.n_trees","quote":"A total of 30 trees were selected from each site","locator":"Section 2.3"}],"check":[{"inputs":{"rho":0.6,"D":20,"H":15},"expected":244.39,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"rho":0.8,"D":50,"H":25},"expected":2983.7,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Fitted by maximum-likelihood non-linear regression with a variance function, no back-transformation. Table 5 column \"R2\" is stored as r2. Total AGB is the sum of stump, stem, branches, twigs and leaves, so foliage is included. Wood density WD is the tree's sample-disc basic density (g/cm³). The rendered equation (10) shows \"Y^1 = a × (WD × dbh² × ht)^b\"; the superscript 1 on Y is read as a typesetting artefact."},{"id":"mugasha-2016-agb-dindili-m9","source":"mugasha-2016","name":"Tanzania lowland forest, Dindili (dry lowland forest), D and H (model 9)","output":{"quantity":"agb"},"expression":"0.1568 * (H * D^2)^0.8613","published":{"expression":"0.1568 * (HT * DBH^2)^0.8613","units":{"DBH":"cm","HT":"m"},"variables":{"DBH":"D","HT":"H"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Mixed lowland forest tree species","group":"broadleaf"},"region":{"scope":"site","countries":["TZ"],"place":"Dindili Forest Reserve, Morogoro, Tanzania (dry lowland forest)","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":30,"r2":0.87,"method":"maximum-likelihood non-linear regression with variance function"},"evidence":[{"field":"expression","quote":"Dindili forest 9 0.1568 0.8613 0.585 × dbh1.683 478.61 0.87 415.06","locator":"Table 5 (columns: a, b, c, error, RMSE, R2, AIC)"},{"field":"published.units","quote":"where Y is the volume (m3 tree−1) or biomass (kg tree−1); WD is wood basic density (g cm−3); a, b, and c are model parameters to be estimated.","locator":"Section 2.6.2"},{"field":"fit.n_trees","quote":"A total of 30 trees were selected from each site","locator":"Section 2.3"}],"check":[{"inputs":{"D":20,"H":15},"expected":281.49,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":50,"H":25},"expected":2118.5,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Fitted by maximum-likelihood non-linear regression with a variance function, no back-transformation. Table 5 column \"R2\" is stored as r2. Total AGB is the sum of stump, stem, branches, twigs and leaves, so foliage is included. Wood density WD is the tree's sample-disc basic density (g/cm³)."},{"id":"mugasha-2016-agb-general-m10","source":"mugasha-2016","name":"Tanzania lowland forest, Dindili and Rondo combined, D, H and wood density (model 10)","output":{"quantity":"agb"},"expression":"0.0873 * (rho * D^2 * H)^0.9458","published":{"expression":"0.0873 * (WD * DBH^2 * HT)^0.9458","units":{"WD":"g/cm3","DBH":"cm","HT":"m"},"variables":{"WD":"rho","DBH":"D","HT":"H"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Mixed lowland forest tree species","group":"broadleaf"},"region":{"scope":"regional","countries":["TZ"],"place":"Dindili (Morogoro) and Rondo (Lindi) lowland forests, Tanzania","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":60,"r2":0.87,"method":"maximum-likelihood non-linear regression with variance function"},"evidence":[{"field":"expression","quote":"General 10 0.0873 0.9458 0.559 × dbh1.673 567.9 0.87 840.94","locator":"Table 5 (columns: a, b, c, error, RMSE, R2, AIC)"},{"field":"published.units","quote":"where Y is the volume (m3 tree−1) or biomass (kg tree−1); WD is wood basic density (g cm−3); a, b, and c are model parameters to be estimated.","locator":"Section 2.6.2"},{"field":"fit.n_trees","quote":"A total of 30 trees were selected from each site","locator":"Section 2.3"}],"check":[{"inputs":{"rho":0.6,"D":20,"H":15},"expected":201.63,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"rho":0.8,"D":50,"H":25},"expected":2428.3,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Fitted by maximum-likelihood non-linear regression with a variance function, no back-transformation. Table 5 column \"R2\" is stored as r2. Total AGB is the sum of stump, stem, branches, twigs and leaves, so foliage is included. Wood density WD is the tree's sample-disc basic density (g/cm³). The rendered equation (10) shows \"Y^1 = a × (WD × dbh² × ht)^b\"; the superscript 1 on Y is read as a typesetting artefact."},{"id":"mugasha-2016-agb-rondo-m10","source":"mugasha-2016","name":"Tanzania lowland forest, Rondo (wet lowland forest), D, H and wood density (model 10)","output":{"quantity":"agb"},"expression":"0.07511 * (rho * D^2 * H)^0.9477","published":{"expression":"0.07511 * (WD * DBH^2 * HT)^0.9477","units":{"WD":"g/cm3","DBH":"cm","HT":"m"},"variables":{"WD":"rho","DBH":"D","HT":"H"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Mixed lowland forest tree species","group":"broadleaf"},"region":{"scope":"site","countries":["TZ"],"place":"Rondo Forest Reserve, Lindi, Tanzania (wet lowland forest)","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":30,"r2":0.92,"method":"maximum-likelihood non-linear regression with variance function"},"evidence":[{"field":"expression","quote":"Rondo forest 10 0.07511 0.9477 0.214 × dbh1.780 462.47 0.92 396.58","locator":"Table 5 (columns: a, b, c, error, RMSE, R2, AIC)"},{"field":"published.units","quote":"where Y is the volume (m3 tree−1) or biomass (kg tree−1); WD is wood basic density (g cm−3); a, b, and c are model parameters to be estimated.","locator":"Section 2.6.2"},{"field":"fit.n_trees","quote":"A total of 30 trees were selected from each site","locator":"Section 2.3"}],"check":[{"inputs":{"rho":0.6,"D":20,"H":15},"expected":176.2,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"rho":0.8,"D":50,"H":25},"expected":2132.6,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Fitted by maximum-likelihood non-linear regression with a variance function, no back-transformation. Table 5 column \"R2\" is stored as r2. Total AGB is the sum of stump, stem, branches, twigs and leaves, so foliage is included. Wood density WD is the tree's sample-disc basic density (g/cm³). The rendered equation (10) shows \"Y^1 = a × (WD × dbh² × ht)^b\"; the superscript 1 on Y is read as a typesetting artefact."},{"id":"mugasha-2016-volume-general-m7","source":"mugasha-2016","name":"Tanzania lowland forest, Dindili and Rondo combined, total volume, D only (model 7)","output":{"quantity":"total_volume"},"expression":"-0.0393 + 0.00102 * D^2","published":{"expression":"-0.0393 + 0.00102 * DBH^2","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m3"},"taxon":{"level":"mixed","name":"Mixed lowland forest tree species","group":"broadleaf"},"region":{"scope":"regional","countries":["TZ"],"place":"Dindili (Morogoro) and Rondo (Lindi) lowland forests, Tanzania","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":60,"r2":0.95,"method":"maximum-likelihood non-linear regression with variance function"},"evidence":[{"field":"expression","quote":"Total tree volume General 7 −0.0393 0.00102 — 0.013 × dbh0.5 0.85 0.95 92.06","locator":"Table 3 (columns: a, b, c, error, RMSE, R2, AIC)"},{"field":"published.units","quote":"where Y is the volume (m3 tree−1) or biomass (kg tree−1); WD is wood basic density (g cm−3); a, b, and c are model parameters to be estimated.","locator":"Section 2.6.2"},{"field":"fit.n_trees","quote":"A total of 30 trees were selected from each site","locator":"Section 2.3"}],"check":[{"inputs":{"D":20},"expected":0.3687,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":50},"expected":2.5107,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Fitted by maximum-likelihood non-linear regression with a variance function, no back-transformation. Table 3 column \"R2\" is stored as r2. Total volume is stem plus branches. Table 3 prints the model forms (6)-(10) as images; they were read from the rendered equations. Model (7) is Y = a + b × dbh²."},{"id":"mugasha-2016-volume-general-m8","source":"mugasha-2016","name":"Tanzania lowland forest, Dindili and Rondo combined, total volume, D and H (model 8)","output":{"quantity":"total_volume"},"expression":"7.6e-05 * D^2.3488 * H^0.3848","published":{"expression":"7.6e-05 * DBH^2.3488 * HT^0.3848","units":{"DBH":"cm","HT":"m"},"variables":{"DBH":"D","HT":"H"},"output_unit":"m3"},"taxon":{"level":"mixed","name":"Mixed lowland forest tree species","group":"broadleaf"},"region":{"scope":"regional","countries":["TZ"],"place":"Dindili (Morogoro) and Rondo (Lindi) lowland forests, Tanzania","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":60,"r2":0.95,"method":"maximum-likelihood non-linear regression with variance function"},"evidence":[{"field":"expression","quote":"Total tree volume General 8 0.000076 2.3488 0.3848 0.013 × dbh0.5 0.90 0.95 91.64","locator":"Table 3 (columns: a, b, c, error, RMSE, R2, AIC)"},{"field":"published.units","quote":"where Y is the volume (m3 tree−1) or biomass (kg tree−1); WD is wood basic density (g cm−3); a, b, and c are model parameters to be estimated.","locator":"Section 2.6.2"},{"field":"fit.n_trees","quote":"A total of 30 trees were selected from each site","locator":"Section 2.3"}],"check":[{"inputs":{"D":20,"H":15},"expected":0.24504,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":50,"H":25},"expected":2.5661,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Fitted by maximum-likelihood non-linear regression with a variance function, no back-transformation. Table 3 column \"R2\" is stored as r2. Total volume is stem plus branches. Table 3 prints the model forms (6)-(10) as images; they were read from the rendered equations."},{"id":"mugasha-2019-h-bushlands","source":"mugasha-2019","name":"Tanzania Bushlands, height from D (base model, Table 4)","output":{"quantity":"height"},"expression":"1.3 + 37.0396 * (1 - exp(-0.03778 * D^0.6063))","published":{"expression":"1.3 + 37.0396 * (1 - exp(-0.03778 * DBH^0.6063))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m"},"taxon":{"level":"mixed","name":"Mixed tree species, Bushlands","group":"mixed"},"region":{"scope":"national","countries":["TZ"],"place":"Tanzania Mainland, NAFORMA inventory (Bushlands)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":3669,"dbh_min_cm":1,"dbh_max_cm":83.1,"h_min_m":1.35,"h_max_m":28,"method":"nonlinear mixed-effects regression (random effect on cluster), Weibull form"},"evidence":[{"field":"expression","quote":"1.3 + 37.0396 × (1 − exp(−0.03778 × D0.6063))","locator":"Table 4, Bushlands row"},{"field":"fit.n_trees","quote":"Number of trees 3669","locator":"Table 1, H, Bushlands column"}],"check":[{"inputs":{"D":5},"expected":4.8329,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":20},"expected":8.9784,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":50},"expected":13.633,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Base model (D only) fitted on NAFORMA data. n_trees and ranges are the Table 1 descriptive statistics for this forest type (the data the model was fitted on). Generalized models with basal area/climate are not captured. Exponent printed flattened in the HTML text (D followed by the exponent); read as D^exponent."},{"id":"mugasha-2019-h-cultivated","source":"mugasha-2019","name":"Tanzania Cultivated land, height from D (base model, Table 4)","output":{"quantity":"height"},"expression":"1.3 + 13.6509 * (1 - exp(-0.06223 * D^0.86))","published":{"expression":"1.3 + 13.6509 * (1 - exp(-0.06223 * DBH^0.86))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m"},"taxon":{"level":"mixed","name":"Mixed tree species, Cultivated land","group":"mixed"},"region":{"scope":"national","countries":["TZ"],"place":"Tanzania Mainland, NAFORMA inventory (Cultivated land)","biomes":["tropical"]},"stand":"mixed","fit":{"n_trees":1866,"dbh_min_cm":1,"dbh_max_cm":149.9,"h_min_m":1.5,"h_max_m":35,"method":"nonlinear mixed-effects regression (random effect on cluster), Weibull form"},"evidence":[{"field":"expression","quote":"1.3 + 13.6509 × (1 − exp(−0.06223 × D0.8600))","locator":"Table 4, Cultivated land row"},{"field":"fit.n_trees","quote":"Number of trees 1866","locator":"Table 1, H, Cultivated column"}],"check":[{"inputs":{"D":5},"expected":4.3023,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":20},"expected":8.9281,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":50},"expected":12.693,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Base model (D only) fitted on NAFORMA data. n_trees and ranges are the Table 1 descriptive statistics for this forest type (the data the model was fitted on). Generalized models with basal area/climate are not captured. Exponent printed flattened in the HTML text (D followed by the exponent); read as D^exponent."},{"id":"mugasha-2019-h-eucalyptus","source":"mugasha-2019","name":"Tanzania Eucalyptus species, height from D (base model, Table 4)","output":{"quantity":"height"},"expression":"1.3 + 29.3684 * (1 - exp(-0.03148 * D^1.1061))","published":{"expression":"1.3 + 29.3684 * (1 - exp(-0.03148 * DBH^1.1061))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m"},"taxon":{"level":"mixed","name":"Mixed tree species, Eucalyptus species","group":"broadleaf"},"region":{"scope":"national","countries":["TZ"],"place":"Tanzania Mainland, NAFORMA inventory (Eucalyptus species)","biomes":["tropical"]},"stand":"plantation","fit":{"n_trees":100,"dbh_min_cm":5.2,"dbh_max_cm":82.5,"h_min_m":5,"h_max_m":36,"method":"nonlinear mixed-effects regression (random effect on cluster), Weibull form"},"evidence":[{"field":"expression","quote":"1.3 + 29.3684 × (1 − exp(−0.03148 × D1.1061))","locator":"Table 4, Eucalyptus species row"},{"field":"fit.n_trees","quote":"Number of trees 100","locator":"Table 1, H, Eucalyptus column"}],"check":[{"inputs":{"D":5},"expected":6.3019,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":20},"expected":18.305,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":50},"expected":27.961,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Base model (D only) fitted on NAFORMA data. n_trees and ranges are the Table 1 descriptive statistics for this forest type (the data the model was fitted on). Generalized models with basal area/climate are not captured. Exponent printed flattened in the HTML text (D followed by the exponent); read as D^exponent."},{"id":"mugasha-2019-h-grasslands","source":"mugasha-2019","name":"Tanzania Grasslands, height from D (base model, Table 4)","output":{"quantity":"height"},"expression":"1.3 + 14.7261 * (1 - exp(-0.0536 * D^0.8637))","published":{"expression":"1.3 + 14.7261 * (1 - exp(-0.0536 * DBH^0.8637))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m"},"taxon":{"level":"mixed","name":"Mixed tree species, Grasslands","group":"mixed"},"region":{"scope":"national","countries":["TZ"],"place":"Tanzania Mainland, NAFORMA inventory (Grasslands)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":934,"dbh_min_cm":1,"dbh_max_cm":75,"h_min_m":1.5,"h_max_m":33,"method":"nonlinear mixed-effects regression (random effect on cluster), Weibull form"},"evidence":[{"field":"expression","quote":"1.3 + 14.7261 × (1 − exp(−0.0536 × D0.8637))","locator":"Table 4, Grasslands row"},{"field":"fit.n_trees","quote":"Number of trees 934","locator":"Table 1, H, Grasslands column"}],"check":[{"inputs":{"D":5},"expected":4.1514,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":20},"expected":8.8051,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":50},"expected":12.97,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Base model (D only) fitted on NAFORMA data. n_trees and ranges are the Table 1 descriptive statistics for this forest type (the data the model was fitted on). Generalized models with basal area/climate are not captured. Exponent printed flattened in the HTML text (D followed by the exponent); read as D^exponent."},{"id":"mugasha-2019-h-lowland","source":"mugasha-2019","name":"Tanzania Lowland forest, height from D (base model, Table 4)","output":{"quantity":"height"},"expression":"1.3 + 24.9862 * (1 - exp(-0.0579 * D^0.7682))","published":{"expression":"1.3 + 24.9862 * (1 - exp(-0.0579 * DBH^0.7682))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m"},"taxon":{"level":"mixed","name":"Mixed tree species, Lowland forest","group":"broadleaf"},"region":{"scope":"national","countries":["TZ"],"place":"Tanzania Mainland, NAFORMA inventory (Lowland forest)","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":2278,"dbh_min_cm":1,"dbh_max_cm":122.4,"h_min_m":1.5,"h_max_m":35,"method":"nonlinear mixed-effects regression (random effect on cluster), Weibull form"},"evidence":[{"field":"expression","quote":"1.3 + 24.9862 × (1 − exp(−0.0579 × D0.7682))","locator":"Table 4, Lowland row"},{"field":"fit.n_trees","quote":"Number of trees 2278","locator":"Table 1, H, Lowland column"}],"check":[{"inputs":{"D":5},"expected":5.816,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":20},"expected":12.272,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":50},"expected":18.524,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Base model (D only) fitted on NAFORMA data. n_trees and ranges are the Table 1 descriptive statistics for this forest type (the data the model was fitted on). Generalized models with basal area/climate are not captured. Exponent printed flattened in the HTML text (D followed by the exponent); read as D^exponent."},{"id":"mugasha-2019-h-mangroves","source":"mugasha-2019","name":"Tanzania Mangroves, height from D (base model, Table 4)","output":{"quantity":"height"},"expression":"1.3 + 15.8607 * (1 - exp(-0.0705 * D^0.852))","published":{"expression":"1.3 + 15.8607 * (1 - exp(-0.0705 * DBH^0.852))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m"},"taxon":{"level":"mixed","name":"Mixed tree species, Mangroves","group":"mangrove"},"region":{"scope":"national","countries":["TZ"],"place":"Tanzania Mainland, NAFORMA inventory (Mangroves)","biomes":["tropical","mangrove"]},"stand":"natural","fit":{"n_trees":307,"dbh_min_cm":1,"dbh_max_cm":46.4,"h_min_m":1.5,"h_max_m":27,"method":"nonlinear mixed-effects regression (random effect on cluster), Weibull form"},"evidence":[{"field":"expression","quote":"1.3 + 15.8607 × (1 − exp(−0.0705 × D0.8520))","locator":"Table 4, Mangroves row"},{"field":"fit.n_trees","quote":"Number of trees 307","locator":"Table 1, H, Mangroves column"}],"check":[{"inputs":{"D":5},"expected":5.1469,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":20},"expected":10.745,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":50},"expected":14.961,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Base model (D only) fitted on NAFORMA data. n_trees and ranges are the Table 1 descriptive statistics for this forest type (the data the model was fitted on). Generalized models with basal area/climate are not captured. Exponent printed flattened in the HTML text (D followed by the exponent); read as D^exponent."},{"id":"mugasha-2019-h-montane","source":"mugasha-2019","name":"Tanzania Humid montane forest, height from D (base model, Table 4)","output":{"quantity":"height"},"expression":"1.3 + 25.6752 * (1 - exp(-0.0536 * D^0.8234))","published":{"expression":"1.3 + 25.6752 * (1 - exp(-0.0536 * DBH^0.8234))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m"},"taxon":{"level":"mixed","name":"Mixed tree species, Humid montane forest","group":"broadleaf"},"region":{"scope":"national","countries":["TZ"],"place":"Tanzania Mainland, NAFORMA inventory (Humid montane forest)","biomes":["tropical","montane"]},"stand":"natural","fit":{"n_trees":2111,"dbh_min_cm":1,"dbh_max_cm":141,"h_min_m":1.5,"h_max_m":45,"method":"nonlinear mixed-effects regression (random effect on cluster), Weibull form"},"evidence":[{"field":"expression","quote":"1.3 + 25.6752 × (1 − exp(−0.0536 × D0.8234)","locator":"Table 4, Humid montane row"},{"field":"fit.n_trees","quote":"Number of trees 2111","locator":"Table 1, H, Montane column"}],"check":[{"inputs":{"D":5},"expected":5.9897,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":20},"expected":13.322,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":50},"expected":20.273,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Base model (D only) fitted on NAFORMA data. n_trees and ranges are the Table 1 descriptive statistics for this forest type (the data the model was fitted on). Generalized models with basal area/climate are not captured. Exponent printed flattened in the HTML text (D followed by the exponent); read as D^exponent. Table 4 prints this row with a missing closing parenthesis; closed in the expression."},{"id":"mugasha-2019-h-pines","source":"mugasha-2019","name":"Tanzania Pine species, height from D (base model, Table 4)","output":{"quantity":"height"},"expression":"1.3 + 28.5979 * (1 - exp(-0.0064 * D^1.6174))","published":{"expression":"1.3 + 28.5979 * (1 - exp(-0.0064 * DBH^1.6174))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m"},"taxon":{"level":"mixed","name":"Mixed tree species, Pine species","group":"conifer"},"region":{"scope":"national","countries":["TZ"],"place":"Tanzania Mainland, NAFORMA inventory (Pine species)","biomes":["tropical"]},"stand":"plantation","fit":{"n_trees":340,"dbh_min_cm":1.8,"dbh_max_cm":54.2,"h_min_m":3,"h_max_m":35,"method":"nonlinear mixed-effects regression (random effect on cluster), Weibull form"},"evidence":[{"field":"expression","quote":"1.3 + 28.5979 × (1 − exp(−0.0064 × D1.6174))","locator":"Table 4, Pine species row"},{"field":"fit.n_trees","quote":"Number of trees 340","locator":"Table 1, H, Pines column"}],"check":[{"inputs":{"D":5},"expected":3.6681,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":20},"expected":17.223,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":50},"expected":29.102,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Base model (D only) fitted on NAFORMA data. n_trees and ranges are the Table 1 descriptive statistics for this forest type (the data the model was fitted on). Generalized models with basal area/climate are not captured. Exponent printed flattened in the HTML text (D followed by the exponent); read as D^exponent."},{"id":"mugasha-2019-h-regional","source":"mugasha-2019","name":"Tanzania All Tanzania Mainland forest types (regional model), height from D (base model, Table 4)","output":{"quantity":"height"},"expression":"1.3 + 30.2116 * (1 - exp(-0.0379 * D^0.7451))","published":{"expression":"1.3 + 30.2116 * (1 - exp(-0.0379 * DBH^0.7451))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m"},"taxon":{"level":"mixed","name":"Mixed tree species, All Tanzania Mainland forest types (regional model)","group":"mixed"},"region":{"scope":"national","countries":["TZ"],"place":"Tanzania Mainland, NAFORMA inventory (All Tanzania Mainland forest types (regional model))","biomes":["tropical"]},"stand":"mixed","fit":{"n_trees":31782,"dbh_min_cm":1,"dbh_max_cm":149.9,"h_min_m":1.3,"h_max_m":45,"method":"nonlinear mixed-effects regression (random effect on cluster), Weibull form"},"evidence":[{"field":"expression","quote":"1.3 + 30.2116 × (1 − exp(−0.0379 × D0.7451))","locator":"Table 4, Reginal (sic) row"},{"field":"fit.n_trees","quote":"Number of trees 31782","locator":"Table 1, H, All column"}],"check":[{"inputs":{"D":5},"expected":4.8694,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":20},"expected":10.29,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":50},"expected":16.496,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Base model (D only) fitted on NAFORMA data. n_trees and ranges are the Table 1 descriptive statistics for this forest type (the data the model was fitted on). Generalized models with basal area/climate are not captured. Exponent printed flattened in the HTML text (D followed by the exponent); read as D^exponent. Table 4 labels the row Reginal (sic)."},{"id":"mugasha-2019-h-wetlands","source":"mugasha-2019","name":"Tanzania Wetland forests, height from D (base model, Table 4)","output":{"quantity":"height"},"expression":"1.3 + 20.4098 * exp(-23.1909 / (D + 6.7727))","published":{"expression":"1.3 + 20.4098 * exp(-23.1909 / (DBH + 6.7727))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m"},"taxon":{"level":"mixed","name":"Mixed tree species, Wetland forests","group":"mixed"},"region":{"scope":"national","countries":["TZ"],"place":"Tanzania Mainland, NAFORMA inventory (Wetland forests)","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":97,"dbh_min_cm":2.2,"dbh_max_cm":93,"h_min_m":2,"h_max_m":25,"method":"nonlinear mixed-effects regression (random effect on cluster), Ratkowsky form"},"evidence":[{"field":"expression","quote":"1.3 + 20.4098 × exp(−23.1909/(D + 6.7727))","locator":"Table 4, Wetlands row"},{"field":"fit.n_trees","quote":"Number of trees 97","locator":"Table 1, H, Wetlands column"}],"check":[{"inputs":{"D":5},"expected":4.1466,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":20},"expected":9.8831,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":50},"expected":14.865,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Base model (D only), Ratkowsky form selected for wetlands (Table 4). n_trees and ranges are the Table 1 statistics for wetlands."},{"id":"mugasha-2019-h-woodlands","source":"mugasha-2019","name":"Tanzania Miombo woodlands, height from D (base model, Table 4)","output":{"quantity":"height"},"expression":"1.3 + 24.3701 * (1 - exp(-0.0405 * D^0.807))","published":{"expression":"1.3 + 24.3701 * (1 - exp(-0.0405 * DBH^0.807))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m"},"taxon":{"level":"mixed","name":"Mixed tree species, Miombo woodlands","group":"broadleaf"},"region":{"scope":"national","countries":["TZ"],"place":"Tanzania Mainland, NAFORMA inventory (Miombo woodlands)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":20080,"dbh_min_cm":1,"dbh_max_cm":123.4,"h_min_m":1.3,"h_max_m":36,"method":"nonlinear mixed-effects regression (random effect on cluster), Weibull form"},"evidence":[{"field":"expression","quote":"1.3 + 24.3701 × (1 − exp(−0.0405 × D0.8070))","locator":"Table 4, Woodlands row"},{"field":"fit.n_trees","quote":"Number of trees 20080","locator":"Table 1, H, Miombo column"}],"check":[{"inputs":{"D":5},"expected":4.6616,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":20},"expected":10.198,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":50},"expected":16.262,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Base model (D only) fitted on NAFORMA data. n_trees and ranges are the Table 1 descriptive statistics for this forest type (the data the model was fitted on). Generalized models with basal area/climate are not captured. Exponent printed flattened in the HTML text (D followed by the exponent); read as D^exponent. Table 4 labels the row Woodlands; Table 1 column is Miombo, used for n and ranges."},{"id":"mwakalukwa-2014-b-spiciformis-dh","source":"mwakalukwa-2014","name":"Dry miombo, total AGB, Brachystegia spiciformis, D and H","output":{"quantity":"agb"},"expression":"1.0081 * exp(-2.6071 + 2.0638 * ln(D) + 0.7847 * ln(H))","published":{"expression":"1.0081 * exp(-2.6071 + 2.0638 * ln(DBH) + 0.7847 * ln(HT))","units":{"DBH":"cm","HT":"m"},"variables":{"DBH":"D","HT":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Brachystegia spiciformis","group":"broadleaf"},"region":{"scope":"site","countries":["TZ"],"place":"Gangalamtumba Village Land Forest Reserve, Iringa, Tanzania (dry miombo woodland)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":40,"dbh_min_cm":1.2,"dbh_max_cm":54.3,"h_min_m":2,"h_max_m":17.2,"r2":0.998,"cf":1.0081,"method":"OLS on ln-transformed data"},"evidence":[{"field":"expression","quote":"Brachystegia spiciformis (N = 40) ... Total biomass (df = 37) 3 −2.6071 (0.149) 2.0638 (0.078) 0.7847 (0.155) 1.2–54.3 0.998 0.127 1.60","locator":"Table 1, total biomass, model 3"},{"field":"fit.cf","quote":"CF = exp⁡(RMSE2/2), which was applied to the predicted values of volume and biomass","locator":"Section 2.5 (Sprugel correction)"},{"field":"published.units","quote":"Y is volume (m3) or biomass (kg); Dbh is diameter at breast height (cm); ht is total height (m); and wd is wood density (kg m−3).","locator":"Table 1 note"},{"field":"fit.dbh_max_cm","quote":"The minimum and maximum sizes of sample trees/shrubs were 1.4 cm and 62.0 cm in diameter at breast height","locator":"Section 2.2 (study-wide)"}],"check":[{"inputs":{"D":20,"H":10},"expected":219.29,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":40,"H":14},"expected":1193.9,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"ln-ln OLS (species models) or linear mixed model with species random effect (group models); total aboveground biomass is stump + stem and branches + twigs and leaves, so foliage is included. The paper states CF = exp(RMSE²/2) and that it was applied to predictions; the CF value (1.0081) is not printed and is computed here from the printed RMSE (0.127) by that stated formula, and applied in both forms. The R² shown for group models is the likelihood-ratio R² named in the Table 2 note; for species models it is adjusted R²."},{"id":"mwakalukwa-2014-c-molle-dh","source":"mwakalukwa-2014","name":"Dry miombo, total AGB, Combretum molle, D and H","output":{"quantity":"agb"},"expression":"1.0146 * exp(-2.4539 + 1.9685 * ln(D) + 0.7545 * ln(H))","published":{"expression":"1.0146 * exp(-2.4539 + 1.9685 * ln(DBH) + 0.7545 * ln(HT))","units":{"DBH":"cm","HT":"m"},"variables":{"DBH":"D","HT":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Combretum molle","group":"broadleaf"},"region":{"scope":"site","countries":["TZ"],"place":"Gangalamtumba Village Land Forest Reserve, Iringa, Tanzania (dry miombo woodland)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":41,"dbh_min_cm":2.2,"dbh_max_cm":26.5,"h_min_m":2.6,"h_max_m":9.4,"r2":0.987,"cf":1.0146,"method":"OLS on ln-transformed data"},"evidence":[{"field":"expression","quote":"Combretum molle (N = 41) ... Total biomass (df = 38) 3 −2.4539 (0.165) 1.9685 (0.099) 0.7545 (0.183) 2.2–26.5 0.987 0.170 2.88","locator":"Table 1, total biomass, model 3"},{"field":"fit.cf","quote":"CF = exp⁡(RMSE2/2), which was applied to the predicted values of volume and biomass","locator":"Section 2.5 (Sprugel correction)"},{"field":"published.units","quote":"Y is volume (m3) or biomass (kg); Dbh is diameter at breast height (cm); ht is total height (m); and wd is wood density (kg m−3).","locator":"Table 1 note"},{"field":"fit.dbh_max_cm","quote":"The minimum and maximum sizes of sample trees/shrubs were 1.4 cm and 62.0 cm in diameter at breast height","locator":"Section 2.2 (study-wide)"}],"check":[{"inputs":{"D":20,"H":10},"expected":180.37,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":40,"H":14},"expected":909.89,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"ln-ln OLS (species models) or linear mixed model with species random effect (group models); total aboveground biomass is stump + stem and branches + twigs and leaves, so foliage is included. The paper states CF = exp(RMSE²/2) and that it was applied to predictions; the CF value (1.0146) is not printed and is computed here from the printed RMSE (0.17) by that stated formula, and applied in both forms. The R² shown for group models is the likelihood-ratio R² named in the Table 2 note; for species models it is adjusted R²."},{"id":"mwakalukwa-2014-combined-d","source":"mwakalukwa-2014","name":"Dry miombo, total AGB, All 44 species (trees and shrubs), D only","output":{"quantity":"agb"},"expression":"1.0297 * exp(-1.9564 + 2.326 * ln(D))","published":{"expression":"1.0297 * exp(-1.9564 + 2.326 * ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Trees and shrubs, 44 species","group":"broadleaf"},"region":{"scope":"site","countries":["TZ"],"place":"Gangalamtumba Village Land Forest Reserve, Iringa, Tanzania (dry miombo woodland)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":104,"dbh_min_cm":1.4,"dbh_max_cm":62,"h_min_m":2.5,"h_max_m":18.2,"r2":0.974,"cf":1.0297,"method":"linear mixed model on ln-transformed data (species random effect)"},"evidence":[{"field":"expression","quote":"Combined (N = 104); 44 species ... Total biomass ... (df = 101) 4 −1.9564 (0.102) 2.3260 (0.035) — 1.4–62 0.974 0.242 0.327 12.60","locator":"Table 2, total biomass, model 4"},{"field":"fit.cf","quote":"CF = exp⁡(RMSE2/2), which was applied to the predicted values of volume and biomass","locator":"Section 2.5 (Sprugel correction)"},{"field":"published.units","quote":"Y is volume (m3) or biomass (kg); Dbh is diameter at breast height (cm); ht is total height (m); and wd is wood density (kg m−3).","locator":"Table 2 note"},{"field":"fit.dbh_max_cm","quote":"The minimum and maximum sizes of sample trees/shrubs were 1.4 cm and 62.0 cm in diameter at breast height","locator":"Section 2.2 (study-wide)"}],"check":[{"inputs":{"D":20},"expected":154.62,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":40},"expected":775.26,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"ln-ln OLS (species models) or linear mixed model with species random effect (group models); total aboveground biomass is stump + stem and branches + twigs and leaves, so foliage is included. The paper states CF = exp(RMSE²/2) and that it was applied to predictions; the CF value (1.0297) is not printed and is computed here from the printed RMSE (0.242) by that stated formula, and applied in both forms. The R² shown for group models is the likelihood-ratio R² named in the Table 2 note; for species models it is adjusted R²."},{"id":"mwakalukwa-2014-combined-dh","source":"mwakalukwa-2014","name":"Dry miombo, total AGB, All 44 species (trees and shrubs), D and H","output":{"quantity":"agb"},"expression":"1.0167 * exp(-2.6896 + 1.9041 * ln(D) + 0.9377 * ln(H))","published":{"expression":"1.0167 * exp(-2.6896 + 1.9041 * ln(DBH) + 0.9377 * ln(HT))","units":{"DBH":"cm","HT":"m"},"variables":{"DBH":"D","HT":"H"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Trees and shrubs, 44 species","group":"broadleaf"},"region":{"scope":"site","countries":["TZ"],"place":"Gangalamtumba Village Land Forest Reserve, Iringa, Tanzania (dry miombo woodland)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":104,"dbh_min_cm":1.4,"dbh_max_cm":62,"h_min_m":2.5,"h_max_m":18.2,"r2":0.983,"cf":1.0167,"method":"linear mixed model on ln-transformed data (species random effect)"},"evidence":[{"field":"expression","quote":"Combined (N = 104); 44 species ... Total biomass (df = 100) 3 −2.6896 (0.131) 1.9041 (0.064) 0.9377 (0.128) 1.4–62 0.983 0.182 0.317 8.96","locator":"Table 2, total biomass, model 3"},{"field":"fit.cf","quote":"CF = exp⁡(RMSE2/2), which was applied to the predicted values of volume and biomass","locator":"Section 2.5 (Sprugel correction)"},{"field":"published.units","quote":"Y is volume (m3) or biomass (kg); Dbh is diameter at breast height (cm); ht is total height (m); and wd is wood density (kg m−3).","locator":"Table 2 note"},{"field":"fit.dbh_max_cm","quote":"The minimum and maximum sizes of sample trees/shrubs were 1.4 cm and 62.0 cm in diameter at breast height","locator":"Section 2.2 (study-wide)"}],"check":[{"inputs":{"D":20,"H":10},"expected":179.52,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":40,"H":14},"expected":921.13,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"ln-ln OLS (species models) or linear mixed model with species random effect (group models); total aboveground biomass is stump + stem and branches + twigs and leaves, so foliage is included. The paper states CF = exp(RMSE²/2) and that it was applied to predictions; the CF value (1.0167) is not printed and is computed here from the printed RMSE (0.182) by that stated formula, and applied in both forms. The R² shown for group models is the likelihood-ratio R² named in the Table 2 note; for species models it is adjusted R²."},{"id":"mwakalukwa-2014-combined-wd","source":"mwakalukwa-2014","name":"Dry miombo, total AGB, All 44 species (trees and shrubs), D, H and wood density","output":{"quantity":"agb"},"expression":"1.0176 * exp(-8.8819 + 0.9497 * ln(1000 * rho * D^2 * H))","published":{"expression":"1.0176 * exp(-8.8819 + 0.9497 * ln(wd * DBH^2 * HT))","units":{"wd":"kg/m3","DBH":"cm","HT":"m"},"variables":{"wd":"rho","DBH":"D","HT":"H"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Trees and shrubs, 44 species","group":"broadleaf"},"region":{"scope":"site","countries":["TZ"],"place":"Gangalamtumba Village Land Forest Reserve, Iringa, Tanzania (dry miombo woodland)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":104,"dbh_min_cm":1.4,"dbh_max_cm":62,"h_min_m":2.5,"h_max_m":18.2,"r2":0.988,"cf":1.0176,"method":"linear mixed model on ln-transformed data (species random effect)"},"evidence":[{"field":"expression","quote":"Combined (N = 104); 44 species ... Total biomass ... (df = 101) 6 −8.8819 (0.139) 0.9497 (0.010) — 1.4–62 0.988 0.187 0.162 6.40","locator":"Table 2, total biomass, model 6"},{"field":"fit.cf","quote":"CF = exp⁡(RMSE2/2), which was applied to the predicted values of volume and biomass","locator":"Section 2.5 (Sprugel correction)"},{"field":"published.units","quote":"Y is volume (m3) or biomass (kg); Dbh is diameter at breast height (cm); ht is total height (m); and wd is wood density (kg m−3).","locator":"Table 2 note"},{"field":"fit.dbh_max_cm","quote":"The minimum and maximum sizes of sample trees/shrubs were 1.4 cm and 62.0 cm in diameter at breast height","locator":"Section 2.2 (study-wide)"}],"check":[{"inputs":{"D":20,"H":10,"rho":0.6},"expected":162,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":40,"H":14,"rho":0.7},"expected":963.02,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"ln-ln OLS (species models) or linear mixed model with species random effect (group models); total aboveground biomass is stump + stem and branches + twigs and leaves, so foliage is included. The paper states CF = exp(RMSE²/2) and that it was applied to predictions; the CF value (1.0176) is not printed and is computed here from the printed RMSE (0.187) by that stated formula, and applied in both forms. The R² shown for group models is the likelihood-ratio R² named in the Table 2 note; for species models it is adjusted R². Wood density is in kg/m³ per the table note (the text says g/cm³ in one place); the coefficients only give plausible values with kg/m³. The canonical form multiplies rho (g/cm³) by 1000."},{"id":"mwakalukwa-2014-d-arbutifolia-dh","source":"mwakalukwa-2014","name":"Dry miombo, total AGB, Dalbergia arbutifolia, D and H","output":{"quantity":"agb"},"expression":"1.0113 * exp(-2.7097 + 1.99 * ln(D) + 0.9035 * ln(H))","published":{"expression":"1.0113 * exp(-2.7097 + 1.99 * ln(DBH) + 0.9035 * ln(HT))","units":{"DBH":"cm","HT":"m"},"variables":{"DBH":"D","HT":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Dalbergia arbutifolia","group":"shrub"},"region":{"scope":"site","countries":["TZ"],"place":"Gangalamtumba Village Land Forest Reserve, Iringa, Tanzania (dry miombo woodland)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":37,"dbh_min_cm":1.8,"dbh_max_cm":21.5,"h_min_m":2.6,"h_max_m":8.8,"r2":0.99,"cf":1.0113,"method":"OLS on ln-transformed data"},"evidence":[{"field":"expression","quote":"Dalbergia arbutifolia (N = 37) ... Total biomass (df = 34) 3 −2.7097 (0.199) 1.9900 (0.062) 0.9035 (0.159) 1.8–21.5 0.990 0.150 1.22","locator":"Table 1, total biomass, model 3"},{"field":"fit.cf","quote":"CF = exp⁡(RMSE2/2), which was applied to the predicted values of volume and biomass","locator":"Section 2.5 (Sprugel correction)"},{"field":"published.units","quote":"Y is volume (m3) or biomass (kg); Dbh is diameter at breast height (cm); ht is total height (m); and wd is wood density (kg m−3).","locator":"Table 1 note"},{"field":"fit.dbh_max_cm","quote":"The minimum and maximum sizes of sample trees/shrubs were 1.4 cm and 62.0 cm in diameter at breast height","locator":"Section 2.2 (study-wide)"}],"check":[{"inputs":{"D":20,"H":10},"expected":209.23,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":40,"H":14},"expected":1126.4,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"ln-ln OLS (species models) or linear mixed model with species random effect (group models); total aboveground biomass is stump + stem and branches + twigs and leaves, so foliage is included. The paper states CF = exp(RMSE²/2) and that it was applied to predictions; the CF value (1.0113) is not printed and is computed here from the printed RMSE (0.15) by that stated formula, and applied in both forms. The R² shown for group models is the likelihood-ratio R² named in the Table 2 note; for species models it is adjusted R²."},{"id":"mwakalukwa-2014-trees-dh","source":"mwakalukwa-2014","name":"Dry miombo, total AGB, Trees (28 species), D and H","output":{"quantity":"agb"},"expression":"1.007 * exp(-3.1399 + 1.7586 * ln(D) + 1.2934 * ln(H))","published":{"expression":"1.007 * exp(-3.1399 + 1.7586 * ln(DBH) + 1.2934 * ln(HT))","units":{"DBH":"cm","HT":"m"},"variables":{"DBH":"D","HT":"H"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Trees, 28 species","group":"broadleaf"},"region":{"scope":"site","countries":["TZ"],"place":"Gangalamtumba Village Land Forest Reserve, Iringa, Tanzania (dry miombo woodland)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":72,"dbh_min_cm":1.4,"dbh_max_cm":62,"h_min_m":2.5,"h_max_m":18.2,"r2":0.992,"cf":1.007,"method":"linear mixed model on ln-transformed data (species random effect)"},"evidence":[{"field":"expression","quote":"Trees (N = 72); 28 species ... Total biomass (df = 69) 3 −3.1399 (0.123) 1.7586 (0.057) 1.2934 (0.115) 1.4–62 0.992 0.118 0.278 2.47","locator":"Table 2, total biomass, model 3"},{"field":"fit.cf","quote":"CF = exp⁡(RMSE2/2), which was applied to the predicted values of volume and biomass","locator":"Section 2.5 (Sprugel correction)"},{"field":"published.units","quote":"Y is volume (m3) or biomass (kg); Dbh is diameter at breast height (cm); ht is total height (m); and wd is wood density (kg m−3).","locator":"Table 2 note"},{"field":"fit.dbh_max_cm","quote":"The minimum and maximum sizes of sample trees/shrubs were 1.4 cm and 62.0 cm in diameter at breast height","locator":"Section 2.2 (study-wide)"}],"check":[{"inputs":{"D":20,"H":10},"expected":166.26,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":40,"H":14},"expected":869.31,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"ln-ln OLS (species models) or linear mixed model with species random effect (group models); total aboveground biomass is stump + stem and branches + twigs and leaves, so foliage is included. The paper states CF = exp(RMSE²/2) and that it was applied to predictions; the CF value (1.007) is not printed and is computed here from the printed RMSE (0.118) by that stated formula, and applied in both forms. The R² shown for group models is the likelihood-ratio R² named in the Table 2 note; for species models it is adjusted R²."},{"id":"mwakalukwa-2014-trees-wd","source":"mwakalukwa-2014","name":"Dry miombo, total AGB, Trees (28 species), D, H and wood density","output":{"quantity":"agb"},"expression":"1.0086 * exp(-9.188 + 0.9668 * ln(1000 * rho * D^2 * H))","published":{"expression":"1.0086 * exp(-9.188 + 0.9668 * ln(wd * DBH^2 * HT))","units":{"wd":"kg/m3","DBH":"cm","HT":"m"},"variables":{"wd":"rho","DBH":"D","HT":"H"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Trees, 28 species","group":"broadleaf"},"region":{"scope":"site","countries":["TZ"],"place":"Gangalamtumba Village Land Forest Reserve, Iringa, Tanzania (dry miombo woodland)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":72,"dbh_min_cm":1.4,"dbh_max_cm":62,"h_min_m":2.5,"h_max_m":18.2,"r2":0.996,"cf":1.0086,"method":"linear mixed model on ln-transformed data (species random effect)"},"evidence":[{"field":"expression","quote":"Trees (N = 72); 28 species ... Total biomass ... (df = 70) 6 −9.1880 (0.101) 0.9668 (0.007) — 1.4–62 0.996 0.131 0.052 1.32","locator":"Table 2, total biomass, model 6"},{"field":"fit.cf","quote":"CF = exp⁡(RMSE2/2), which was applied to the predicted values of volume and biomass","locator":"Section 2.5 (Sprugel correction)"},{"field":"published.units","quote":"Y is volume (m3) or biomass (kg); Dbh is diameter at breast height (cm); ht is total height (m); and wd is wood density (kg m−3).","locator":"Table 2 note"},{"field":"fit.dbh_max_cm","quote":"The minimum and maximum sizes of sample trees/shrubs were 1.4 cm and 62.0 cm in diameter at breast height","locator":"Section 2.2 (study-wide)"}],"check":[{"inputs":{"D":20,"H":10,"rho":0.6},"expected":151.99,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":40,"H":14,"rho":0.7},"expected":933,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"ln-ln OLS (species models) or linear mixed model with species random effect (group models); total aboveground biomass is stump + stem and branches + twigs and leaves, so foliage is included. The paper states CF = exp(RMSE²/2) and that it was applied to predictions; the CF value (1.0086) is not printed and is computed here from the printed RMSE (0.131) by that stated formula, and applied in both forms. The R² shown for group models is the likelihood-ratio R² named in the Table 2 note; for species models it is adjusted R². Wood density is in kg/m³ per the table note (the text says g/cm³ in one place); the coefficients only give plausible values with kg/m³. The canonical form multiplies rho (g/cm³) by 1000."},{"id":"nam-2016-eq10","source":"nam-2016","name":"Vietnam evergreen forest AGB with DBH, height and wood density (Eq. 10)","output":{"quantity":"agb"},"expression":"1.030 * exp(-3.081 + 0.966 * ln(D^2 * H) + 0.305 * ln(rho))","published":{"expression":"1.030 * exp(-3.081 + 0.966 * ln(DBH^2 * H) + 0.305 * ln(WD))","units":{"DBH":"cm","H":"m","WD":"g/cm3"},"variables":{"DBH":"D","WD":"rho"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Mixed species of tropical evergreen forest (45 species)","group":"broadleaf"},"region":{"scope":"site","countries":["VN"],"place":"K'Bang district, Gia Lai province, Central Highlands, Vietnam","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":300,"dbh_min_cm":1.8,"dbh_max_cm":115,"r2":0.986,"rse":0.245,"cf":1.03,"method":"OLS on ln-transformed data, adjusted R2 (Table 2 model 8)"},"evidence":[{"field":"expression","quote":"ln(AGB) = −3.081 + 0.966 ln(DBH²H) + 0.305 ln(WD)","locator":"Eq. 10"},{"field":"fit","quote":"8 ln(AGB) = a + hln(DBH2H) + cln(WD) 0.986 0.245 -841.2 19.8 1.030","locator":"Table 2, model 8"},{"field":"fit.n_trees","quote":"a total of 300 trees pertaining to 45 species","locator":"Methods"},{"field":"fit.dbh","quote":"AGB = exp(-3.051+0.966ln(DBH2H) +0.305ln(WD)) ... 300 ... 1.8–115.0 ... Vietnam","locator":"Table 5"}],"check":[{"inputs":{"D":30,"H":20,"rho":0.63},"expected":529.87,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":60,"H":30,"rho":0.63},"expected":2991.31,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Eq. 10 times the CF 1.030 from Table 2. The paper's Eq. 11 back-transformed form prints 'exp(3,051 + ... + 3.05 ln(WD))', a typo; Table 5 prints exp(-3.051 + 0.966 ln(DBH2H) + 0.305 ln(WD)), i.e. the CF folded into the intercept (ln 1.030 = 0.030). H is the felled stem length. Functional-group models (Eq. 12-15) have no printed CF and are not included."},{"id":"namm-2020-bgb-ba","source":"namm-2020","name":"Tanoak root biomass from basal area (best AICc model, Table 2)","output":{"quantity":"bgb"},"expression":"exp(6.683 + 0.8149 * ln(0.000078539816 * D^2))","published":{"expression":"exp(6.683 + 0.8149 * ln(0.000078539816 * DBH^2))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Notholithocarpus densiflorus","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["US"],"place":"L.W. Schatz Demonstration Tree Farm, Humboldt County, California","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":12,"dbh_min_cm":1.9,"dbh_max_cm":52.4,"h_min_m":2.7,"h_max_m":21.1,"r2":0.9425,"method":"linear mixed model on ln scale (block random effect), excavated root systems"},"evidence":[{"field":"expression","quote":"ln (Belowground biomass) = 6.683 + 0.8149( ln BA )","locator":"Table 2, last row (lowest AICc)"},{"field":"fit.n_trees","quote":"n = 12 trees","locator":"Table 2 caption"},{"field":"fit.dbh_min_cm","quote":"the dbh of individual stems were between 1.9 cm and 52.4 cm","locator":"Results, p. 53"},{"field":"fit.h_min_m","quote":"Tree heights ranged from 2.7 m to 21.1 m","locator":"Results, p. 53"},{"field":"fit.r2","quote":"0.9425","locator":"Table 2, R2 adj. of the best-AICc model"}],"check":[{"inputs":{"D":31.1},"expected":98,"origin":"published","note":"Results, p. 53: tanoak with average tree BA of 0.076 m2 (single-stemmed dbh 31.1 cm) expected to store 98 kg belowground (rounded in paper)"},{"inputs":{"D":15},"expected":29.7915,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":45},"expected":178.5273,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"The paper's predictor is total stem basal area BA (m2, summed over all stems of a multi-stemmed tanoak). Here BA is written as pi/4 * (DBH/100)^2, so D is the dbh of a single stem; for multi-stemmed trees use the summed basal area instead. Output is belowground biomass excluding stump, in kg. r2 is the adjusted R2 as printed. The paper does not state a back-transformation correction factor, so none is applied. Other candidate models (with crown position, SDI, height) and the root:shoot models (arcsine transform, coefficients not legible in the text layer) were not added."},{"id":"nath-2019-model1","source":"nath-2019","name":"NE India mixed-forest AGB from DBH, power law (Model 1, second best)","output":{"quantity":"agb"},"expression":"0.18 * D^2.16 * 1.32","published":{"expression":"0.18 * D^2.16 * 1.32","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Dominant tree species of four NE Indian forest types","group":"mixed"},"region":{"scope":"regional","countries":["IN"],"place":"North East India (tropical semi-evergreen, tropical wet evergreen, sub-tropical broad leaved and sub-tropical pine forest)","biomes":["tropical","subtropical","montane"]},"stand":"natural","fit":{"n_trees":303,"dbh_min_cm":10.1,"dbh_max_cm":90,"r2":0.705,"cf":1.32,"method":"Linear mixed model on log scale (forest type random effect), back-transformed with CF = exp(MSE/2)"},"evidence":[{"field":"expression","quote":"AGBest = 0.18D2.16 × 1.32","locator":"Abstract"},{"field":"fit.n_trees","quote":"Sample tree data (a total of 303 trees) were collected from four major forest types","locator":"Section 2.2"},{"field":"fit.dbh_min_cm","quote":"seven diameter classes were formed: 10.1–20 cm, 20.1–30 cm, 30.1–40 cm, 40.1–50 cm, 50.1–60 cm, 60.1–70 cm, and 70.1–90 cm","locator":"Section 2.2"},{"field":"fit.cf","quote":"Upon back transformation, each model was multiplied with a correction factor (CF) estimated from the residual variance or mean square error (MSE) using the formula CF = exp(MSE/2)","locator":"Section 2.3"},{"field":"published.units","quote":"AGB is total above-ground biomass in kg dry matter tree−1, ... D is diameter at breast height in centimeters","locator":"Section 2.3"},{"field":"fit.r2","quote":"1 ... LME −1.73 (0.45) 2.16 (0.10) - 705 0.705 0.749","locator":"Table 2, Model 1 LME row (Adj R2 column)"}],"check":[{"inputs":{"D":30},"expected":368.4922,"origin":"computed","note":"computed from the published form in the Abstract"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Coefficients as printed in the Abstract and Results (two decimals). Table 2 (LME, Model 1) prints ln(a) = −1.73 (SE 0.45) and b = 2.16 (SE 0.10); exp(−1.73) = 0.177, consistent with the printed 0.18, and the Model 1 residual variance 0.56 (Table 3) gives CF = exp(0.56/2) = 1.32. r2 is the adjusted R2 of the LME fit as printed in Table 2 (R2 = 1 − RVm/RVi for the mixed model). The 1.32 correction factor is part of the printed equation. Model 3 (0.32(D²Hδ)^0.75 × 1.34, the authors' best) was not added: the text gives wood density in kg m-3 but the printed form only gives plausible biomass with g/cm3, so the unit is unclear. DBH range is the sampling-class span, not a stated fitted range."},{"id":"navarro-2020-p-oocarpa-m1","source":"navarro-2020","name":"Pinus oocarpa, power model, D only (model 1)","output":{"quantity":"agb"},"expression":"0.10012 * D^2.4589","published":{"expression":"0.10012 * D^2.4589","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus oocarpa Schiede","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["MX"],"place":"Microcuenca del río Hueyapa, Guerrero (bosque templado)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":33,"dbh_min_cm":12.5,"dbh_max_cm":82,"h_min_m":7.15,"h_max_m":29.1,"method":"Power model fitted as log-linear regression (Table 3, models 1-2); no correction factor stated"},"evidence":[{"field":"expression","quote":"B̂i = 0.10012 * D^2.4589","locator":"Table 4, model 1"},{"field":"fit.n_trees","quote":"33 árboles","locator":"Resumen / Table 2"}],"check":[{"inputs":{"D":33.3},"expected":554.701,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":61.1},"expected":2467.28,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"The authors recommend this model for P. oocarpa (p. 8). R2adj 0.977. Total aboveground biomass (stem, branches, foliage, cones). No back-transformation correction factor is stated, none applied."},{"id":"navarro-2020-p-oocarpa-m2","source":"navarro-2020","name":"Pinus oocarpa, power model, D²H (model 2)","output":{"quantity":"agb"},"expression":"0.03384 * (D^2 * H)^0.9774","published":{"expression":"0.03384 * (D^2 * H)^0.9774","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus oocarpa Schiede","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["MX"],"place":"Microcuenca del río Hueyapa, Guerrero (bosque templado)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":33,"dbh_min_cm":12.5,"dbh_max_cm":82,"h_min_m":7.15,"h_max_m":29.1,"method":"Power model fitted as log-linear regression (Table 3, models 1-2); no correction factor stated"},"evidence":[{"field":"expression","quote":"B̂i = 0.03384 * (D² * H)^0.9774","locator":"Table 4, model 2"},{"field":"fit.n_trees","quote":"33 árboles","locator":"Resumen / Table 2"}],"check":[{"inputs":{"D":33.3,"H":13.7},"expected":413.557,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":61.1,"H":22.5},"expected":2199.92,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"R2adj 0.974. Total aboveground biomass (stem, branches, foliage, cones). No back-transformation correction factor is stated, none applied."},{"id":"navarro-2020-q-resinosa-m1","source":"navarro-2020","name":"Quercus resinosa, power model, D only (model 1)","output":{"quantity":"agb"},"expression":"0.09206 * D^2.5417","published":{"expression":"0.09206 * D^2.5417","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus resinosa Liebmann","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Microcuenca del río Hueyapa, Guerrero (bosque templado)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":19,"dbh_min_cm":14.1,"dbh_max_cm":57.7,"h_min_m":10.4,"h_max_m":22.8,"method":"Power model fitted as log-linear regression (Table 3, models 1-2); no correction factor stated"},"evidence":[{"field":"expression","quote":"B̂i = 0.09206 * D^2.5417","locator":"Table 5, model 1"},{"field":"fit.n_trees","quote":"19 para la segunda","locator":"Resumen / Table 2"}],"check":[{"inputs":{"D":27.2},"expected":407.676,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":44.6},"expected":1432.8,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"The authors say it can also be used for Q. resinosa (p. 8). R2adj 0.955. Total aboveground biomass (stem, branches, foliage). No back-transformation correction factor is stated, none applied."},{"id":"navarro-2020-q-resinosa-m2","source":"navarro-2020","name":"Quercus resinosa, power model, D²H (model 2)","output":{"quantity":"agb"},"expression":"0.01532 * (D^2 * H)^1.0958","published":{"expression":"0.01532 * (D^2 * H)^1.0958","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus resinosa Liebmann","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Microcuenca del río Hueyapa, Guerrero (bosque templado)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":19,"dbh_min_cm":14.1,"dbh_max_cm":57.7,"h_min_m":10.4,"h_max_m":22.8,"method":"Power model fitted as log-linear regression (Table 3, models 1-2); no correction factor stated"},"evidence":[{"field":"expression","quote":"B̂i = 0.01532 * (D² * H)^1.0958","locator":"Table 5, model 2"},{"field":"fit.n_trees","quote":"19 para la segunda","locator":"Resumen / Table 2"}],"check":[{"inputs":{"D":27.2,"H":14.1},"expected":387.77,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":44.6,"H":19.1},"expected":1598.44,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"R2adj 0.979. The authors' statistically best model for Q. resinosa is the Box-Cox model 4, not added. Total aboveground biomass (stem, branches, foliage). No back-transformation correction factor is stated, none applied."},{"id":"ntonmen-2022-agb-d-h","source":"ntonmen-2022","name":"Understorey AGB from D30 and height","output":{"quantity":"agb"},"expression":"exp(-3.215 + 1.665 * ln(D30) + 0.958 * ln(H))","published":{"expression":"exp(-3.215 + 1.665 * ln(D) + 0.958 * ln(H))","units":{"D":"cm","H":"m"},"variables":{"D":"D30"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Understorey trees and saplings, 184 species (stems 1–10 cm diameter)","group":"broadleaf"},"region":{"scope":"site","countries":["CM"],"place":"Semi-deciduous rainforest, East region, Cameroon","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":1023,"h_min_m":0.86,"h_max_m":15.55,"rse":0.423,"method":"log-log regression, lnM = a + b ln(X1) + ..."},"evidence":[{"field":"expression","quote":"lnM= a + b × ln(D) + c × ln(H) 1023 -3.215*** 1.665*** 0.958*** 0.192 0.423 0.935 1149 0.09 2.45","locator":"Table 2, block \"All (1≤ diameter <10 cm)\", p. 5"},{"field":"published.units","quote":"H: tree height; ρ: wood density; C: crown diameter; N: sample size; a, b, c and d are the model’s fitted parameters","locator":"Table 3 note, p. 6"},{"field":"fit.n_trees","quote":"AGB and several measurement variables (diameter, height, crown diameter, and wood density) were measured on 1023 understorey stems belonging to 184 species","locator":"Data collection, p. 3"},{"field":"notes","quote":"The diameter was measured at 30 cm aboveground level","locator":"Data collection, p. 3"},{"field":"notes","quote":"The correction factor (CF) calculated by the formula CF= RSE²/2 (5)","locator":"Data analysis, p. 4"}],"check":[{"inputs":{"D30":3,"H":4},"expected":0.944,"origin":"computed","note":"computed with python3 from the published form (uncorrected, as printed)"},{"inputs":{"D30":8,"H":9},"expected":10.509,"origin":"computed","note":"computed with python3 from the published form (uncorrected, as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Selected from Table 2/3 \"All\" (1 ≤ diameter < 10 cm, n = 1023) block; the paper also gives separate seedling (1-5 cm) and sapling (5-10 cm) fits and crown-diameter models (not included: crown diameter unit is ambiguous, Table 1 header says cm but values are 0.19-7.55). D is the stem diameter at 30 cm above ground (D30), not DBH, so no DBH range is stored; Table 1 gives D 1.00-9.99 cm and H 0.86-15.55 m for the whole data set. Wood density is the mean of base, trunk and branch samples (dry weight / fresh volume). Published as the plain exp() back-transform: the paper lists a CF column (= RSE²/2, an additive term on the log scale) but does not print the corrected equation, so no correction factor is applied or stored. Total AGB = trunk + branches + leaves (dry mass, oven-dried at 105/70 °C). Recommended by the authors: the models with more predictors fit better (Adj.R² up to 0.956 with four predictors); the D-only model is the simplest."},{"id":"ntonmen-2022-agb-d-rho","source":"ntonmen-2022","name":"Understorey AGB from D30 and wood density","output":{"quantity":"agb"},"expression":"exp(-2.144 + 2.505 * ln(D30) + 1.164 * ln(rho))","published":{"expression":"exp(-2.144 + 2.505 * ln(D) + 1.164 * ln(rho))","units":{"D":"cm","rho":"g/cm3"},"variables":{"D":"D30"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Understorey trees and saplings, 184 species (stems 1–10 cm diameter)","group":"broadleaf"},"region":{"scope":"site","countries":["CM"],"place":"Semi-deciduous rainforest, East region, Cameroon","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":1023,"rse":0.419,"method":"log-log regression, lnM = a + b ln(X1) + ..."},"evidence":[{"field":"expression","quote":"lnM= a + b × ln(D) + c × ln(ρ) 1023 -2.144*** 2.505*** 1.164*** 0.184 0.419 0.936 1126 0.09 1.16","locator":"Table 2, block \"All (1≤ diameter <10 cm)\", p. 5"},{"field":"published.units","quote":"H: tree height; ρ: wood density; C: crown diameter; N: sample size; a, b, c and d are the model’s fitted parameters","locator":"Table 3 note, p. 6"},{"field":"fit.n_trees","quote":"AGB and several measurement variables (diameter, height, crown diameter, and wood density) were measured on 1023 understorey stems belonging to 184 species","locator":"Data collection, p. 3"},{"field":"notes","quote":"The diameter was measured at 30 cm aboveground level","locator":"Data collection, p. 3"},{"field":"notes","quote":"The correction factor (CF) calculated by the formula CF= RSE²/2 (5)","locator":"Data analysis, p. 4"}],"check":[{"inputs":{"D30":3,"rho":0.56},"expected":0.935,"origin":"computed","note":"computed with python3 from the published form (uncorrected, as printed)"},{"inputs":{"D30":8,"rho":0.6},"expected":11.827,"origin":"computed","note":"computed with python3 from the published form (uncorrected, as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Selected from Table 2/3 \"All\" (1 ≤ diameter < 10 cm, n = 1023) block; the paper also gives separate seedling (1-5 cm) and sapling (5-10 cm) fits and crown-diameter models (not included: crown diameter unit is ambiguous, Table 1 header says cm but values are 0.19-7.55). D is the stem diameter at 30 cm above ground (D30), not DBH, so no DBH range is stored; Table 1 gives D 1.00-9.99 cm and H 0.86-15.55 m for the whole data set. Wood density is the mean of base, trunk and branch samples (dry weight / fresh volume). Published as the plain exp() back-transform: the paper lists a CF column (= RSE²/2, an additive term on the log scale) but does not print the corrected equation, so no correction factor is applied or stored. Total AGB = trunk + branches + leaves (dry mass, oven-dried at 105/70 °C). Recommended by the authors: the models with more predictors fit better (Adj.R² up to 0.956 with four predictors); the D-only model is the simplest."},{"id":"ntonmen-2022-agb-d","source":"ntonmen-2022","name":"Understorey AGB from D30 (1-10 cm stems)","output":{"quantity":"agb"},"expression":"exp(-2.811 + 2.474 * ln(D30))","published":{"expression":"exp(-2.811 + 2.474 * ln(D))","units":{"D":"cm"},"variables":{"D":"D30"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Understorey trees and saplings, 184 species (stems 1–10 cm diameter)","group":"broadleaf"},"region":{"scope":"site","countries":["CM"],"place":"Semi-deciduous rainforest, East region, Cameroon","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":1023,"rse":0.475,"method":"log-log regression, lnM = a + b ln(X1) + ..."},"evidence":[{"field":"expression","quote":"lnM= a + b × ln(D) 1023 -2.811*** 2.474*** 0.199 0.475 0.918 1384 0.11 0.11","locator":"Table 2, block \"All (1≤ diameter <10 cm)\", p. 5"},{"field":"published.units","quote":"H: tree height; ρ: wood density; C: crown diameter; N: sample size; a, b, c and d are the model’s fitted parameters","locator":"Table 3 note, p. 6"},{"field":"fit.n_trees","quote":"AGB and several measurement variables (diameter, height, crown diameter, and wood density) were measured on 1023 understorey stems belonging to 184 species","locator":"Data collection, p. 3"},{"field":"notes","quote":"The diameter was measured at 30 cm aboveground level","locator":"Data collection, p. 3"},{"field":"notes","quote":"The correction factor (CF) calculated by the formula CF= RSE²/2 (5)","locator":"Data analysis, p. 4"}],"check":[{"inputs":{"D30":3},"expected":0.911,"origin":"computed","note":"computed with python3 from the published form (uncorrected, as printed)"},{"inputs":{"D30":8},"expected":10.314,"origin":"computed","note":"computed with python3 from the published form (uncorrected, as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Selected from Table 2/3 \"All\" (1 ≤ diameter < 10 cm, n = 1023) block; the paper also gives separate seedling (1-5 cm) and sapling (5-10 cm) fits and crown-diameter models (not included: crown diameter unit is ambiguous, Table 1 header says cm but values are 0.19-7.55). D is the stem diameter at 30 cm above ground (D30), not DBH, so no DBH range is stored; Table 1 gives D 1.00-9.99 cm and H 0.86-15.55 m for the whole data set. Wood density is the mean of base, trunk and branch samples (dry weight / fresh volume). Published as the plain exp() back-transform: the paper lists a CF column (= RSE²/2, an additive term on the log scale) but does not print the corrected equation, so no correction factor is applied or stored. Total AGB = trunk + branches + leaves (dry mass, oven-dried at 105/70 °C). Recommended by the authors: the models with more predictors fit better (Adj.R² up to 0.956 with four predictors); the D-only model is the simplest."},{"id":"ntonmen-2022-agb-d2h-rho","source":"ntonmen-2022","name":"Understorey AGB from D30²·H and wood density","output":{"quantity":"agb"},"expression":"exp(-2.554 + 0.88 * ln(D30^2 * H) + 1.1 * ln(rho))","published":{"expression":"exp(-2.554 + 0.88 * ln(D^2 * H) + 1.1 * ln(rho))","units":{"D":"cm","rho":"g/cm3","H":"m"},"variables":{"D":"D30"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Understorey trees and saplings, 184 species (stems 1–10 cm diameter)","group":"broadleaf"},"region":{"scope":"site","countries":["CM"],"place":"Semi-deciduous rainforest, East region, Cameroon","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":1023,"h_min_m":0.86,"h_max_m":15.55,"rse":0.367,"method":"log-log regression, lnM = a + b ln(X1) + ..."},"evidence":[{"field":"expression","quote":"lnM= a + b × ln(D2 × H) + c × ln(ρ) 1023 -2.554*** 0.880*** 1.100*** 0.158 0.367 0.951 854 0.07 1.10","locator":"Table 2, block \"All (1≤ diameter <10 cm)\", p. 5"},{"field":"published.units","quote":"H: tree height; ρ: wood density; C: crown diameter; N: sample size; a, b, c and d are the model’s fitted parameters","locator":"Table 3 note, p. 6"},{"field":"fit.n_trees","quote":"AGB and several measurement variables (diameter, height, crown diameter, and wood density) were measured on 1023 understorey stems belonging to 184 species","locator":"Data collection, p. 3"},{"field":"notes","quote":"The diameter was measured at 30 cm aboveground level","locator":"Data collection, p. 3"},{"field":"notes","quote":"The correction factor (CF) calculated by the formula CF= RSE²/2 (5)","locator":"Data analysis, p. 4"}],"check":[{"inputs":{"D30":3,"H":4,"rho":0.56},"expected":0.962,"origin":"computed","note":"computed with python3 from the published form (uncorrected, as printed)"},{"inputs":{"D30":8,"H":9,"rho":0.6},"expected":11.911,"origin":"computed","note":"computed with python3 from the published form (uncorrected, as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Selected from Table 2/3 \"All\" (1 ≤ diameter < 10 cm, n = 1023) block; the paper also gives separate seedling (1-5 cm) and sapling (5-10 cm) fits and crown-diameter models (not included: crown diameter unit is ambiguous, Table 1 header says cm but values are 0.19-7.55). D is the stem diameter at 30 cm above ground (D30), not DBH, so no DBH range is stored; Table 1 gives D 1.00-9.99 cm and H 0.86-15.55 m for the whole data set. Wood density is the mean of base, trunk and branch samples (dry weight / fresh volume). Published as the plain exp() back-transform: the paper lists a CF column (= RSE²/2, an additive term on the log scale) but does not print the corrected equation, so no correction factor is applied or stored. Total AGB = trunk + branches + leaves (dry mass, oven-dried at 105/70 °C). Recommended by the authors: the models with more predictors fit better (Adj.R² up to 0.956 with four predictors); the D-only model is the simplest."},{"id":"ntonmen-2022-trunk-d-h-rho","source":"ntonmen-2022","name":"Understorey trunk biomass from D30, height and wood density","output":{"quantity":"stem_biomass"},"expression":"exp(-3.48 + 1.731 * ln(D30) + 1.096 * ln(H) + 0.897 * ln(rho))","published":{"expression":"exp(-3.48 + 1.731 * ln(D) + 1.096 * ln(H) + 0.897 * ln(rho))","units":{"D":"cm","rho":"g/cm3","H":"m"},"variables":{"D":"D30"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Understorey trees and saplings, 184 species (stems 1–10 cm diameter)","group":"broadleaf"},"region":{"scope":"site","countries":["CM"],"place":"Semi-deciduous rainforest, East region, Cameroon","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":1023,"h_min_m":0.86,"h_max_m":15.55,"rse":0.438,"method":"log-log regression, lnM = a + b ln(X1) + ..."},"evidence":[{"field":"expression","quote":"lnM= a + b × ln(D)+c × ln(H) + d × ln (ρ) 1023 -3.480*** 1.731*** 1.096*** 0.897*** 1.318 0.438 0.939 1220 0.10 2.44","locator":"Table 3, block \"Trunk\", p. 6"},{"field":"published.units","quote":"H: tree height; ρ: wood density; C: crown diameter; N: sample size; a, b, c and d are the model’s fitted parameters","locator":"Table 3 note, p. 6"},{"field":"fit.n_trees","quote":"AGB and several measurement variables (diameter, height, crown diameter, and wood density) were measured on 1023 understorey stems belonging to 184 species","locator":"Data collection, p. 3"},{"field":"notes","quote":"The diameter was measured at 30 cm aboveground level","locator":"Data collection, p. 3"},{"field":"notes","quote":"The correction factor (CF) calculated by the formula CF= RSE²/2 (5)","locator":"Data analysis, p. 4"}],"check":[{"inputs":{"D30":3,"H":4,"rho":0.56},"expected":0.56,"origin":"computed","note":"computed with python3 from the published form (uncorrected, as printed)"},{"inputs":{"D30":8,"H":9,"rho":0.6},"expected":7.921,"origin":"computed","note":"computed with python3 from the published form (uncorrected, as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Selected from Table 2/3 \"All\" (1 ≤ diameter < 10 cm, n = 1023) block; the paper also gives separate seedling (1-5 cm) and sapling (5-10 cm) fits and crown-diameter models (not included: crown diameter unit is ambiguous, Table 1 header says cm but values are 0.19-7.55). D is the stem diameter at 30 cm above ground (D30), not DBH, so no DBH range is stored; Table 1 gives D 1.00-9.99 cm and H 0.86-15.55 m for the whole data set. Wood density is the mean of base, trunk and branch samples (dry weight / fresh volume). Published as the plain exp() back-transform: the paper lists a CF column (= RSE²/2, an additive term on the log scale) but does not print the corrected equation, so no correction factor is applied or stored. Total AGB = trunk + branches + leaves (dry mass, oven-dried at 105/70 °C). Recommended by the authors: the models with more predictors fit better (Adj.R² up to 0.956 with four predictors); the D-only model is the simplest. Stem (trunk) component only."},{"id":"ounban-2016-euca-agb-d","source":"ounban-2016","name":"Eucalyptus camaldulensis AGB from D","output":{"quantity":"agb"},"expression":"0.199 * D^2.185","published":{"expression":"0.199 * D^2.185","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Eucalyptus camaldulensis","family":"Myrtaceae","group":"broadleaf"},"region":{"scope":"national","countries":["TH"],"place":"Plantations across Thailand","biomes":["tropical"]},"stand":"plantation","fit":{"n_trees":94,"dbh_min_cm":0.5,"dbh_max_cm":19.8,"h_min_m":1.7,"h_max_m":26,"r2":0.918,"method":"Least-squares power regression on untransformed data (weighted data from 12-13 published datasets)"},"evidence":[{"field":"expression","quote":"AGB = 0.199(D)2.185","locator":"Table 6"},{"field":"fit.n_trees","quote":"13 datasets with a total of 94 trees were chosen for E. camaldulensis","locator":"Methods, Compilation of biomass allometric equations"},{"field":"fit.dbh_min_cm","quote":"The ranges in the diameters and heights of trees in the dataset were 4.4–41.2 cm and 5.5–31.0 m for T. grandis, and 0.5–19.8 and 1.7–26.0 m for E. camaldulensis","locator":"Methods, Compilation of biomass allometric equations"},{"field":"fit.method","quote":"Linear regressions of untransformed data were used in the present study because log transformed data introduced a systematic bias","locator":"Methods, Reconstruction of biomass allometric equations"}],"check":[{"inputs":{"D":8},"expected":18.7113,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":15},"expected":73.8946,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"General (multi-site) equation fitted on pooled data compiled from published Thai plantation studies (theses, proceedings, reports), not on new felled trees; validated by the authors on independent harvests. D in cm, H in m, output kg dry weight per tree. AGB is the sum of stem, branches and leaves."},{"id":"ounban-2016-euca-agb-d2h","source":"ounban-2016","name":"Eucalyptus camaldulensis AGB from D²H","output":{"quantity":"agb"},"expression":"0.035 * (D^2*H)^0.953","published":{"expression":"0.035 * (D^2*H)^0.953","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Eucalyptus camaldulensis","family":"Myrtaceae","group":"broadleaf"},"region":{"scope":"national","countries":["TH"],"place":"Plantations across Thailand","biomes":["tropical"]},"stand":"plantation","fit":{"n_trees":94,"dbh_min_cm":0.5,"dbh_max_cm":19.8,"h_min_m":1.7,"h_max_m":26,"r2":0.982,"method":"Least-squares power regression on untransformed data (weighted data from 12-13 published datasets)"},"evidence":[{"field":"expression","quote":"AGB = 0.035(D2H)0.953","locator":"Table 4"},{"field":"fit.n_trees","quote":"13 datasets with a total of 94 trees were chosen for E. camaldulensis","locator":"Methods, Compilation of biomass allometric equations"},{"field":"fit.dbh_min_cm","quote":"The ranges in the diameters and heights of trees in the dataset were 4.4–41.2 cm and 5.5–31.0 m for T. grandis, and 0.5–19.8 and 1.7–26.0 m for E. camaldulensis","locator":"Methods, Compilation of biomass allometric equations"},{"field":"fit.method","quote":"Linear regressions of untransformed data were used in the present study because log transformed data introduced a systematic bias","locator":"Methods, Reconstruction of biomass allometric equations"}],"check":[{"inputs":{"D":8,"H":10},"expected":16.5332,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":15,"H":18},"expected":95.934,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"General (multi-site) equation fitted on pooled data compiled from published Thai plantation studies (theses, proceedings, reports), not on new felled trees; validated by the authors on independent harvests. D in cm, H in m, output kg dry weight per tree. AGB is the sum of stem, branches and leaves. The abstract prints this model as AGB = 0.033(D2H)0.959, while Table 4 and Table 6 print 0.035(D2H)0.953; the table values are used here."},{"id":"ounban-2016-euca-leaf-d2h","source":"ounban-2016","name":"Eucalyptus camaldulensis leaf biomass from D²H","output":{"quantity":"foliage_biomass"},"expression":"0.013 * (D^2*H)^0.721","published":{"expression":"0.013 * (D^2*H)^0.721","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Eucalyptus camaldulensis","family":"Myrtaceae","group":"broadleaf"},"region":{"scope":"national","countries":["TH"],"place":"Plantations across Thailand","biomes":["tropical"]},"stand":"plantation","fit":{"n_trees":94,"dbh_min_cm":0.5,"dbh_max_cm":19.8,"h_min_m":1.7,"h_max_m":26,"r2":0.705,"method":"Least-squares power regression on untransformed data (weighted data from 12-13 published datasets)"},"evidence":[{"field":"expression","quote":"Wl = 0.013(D2H)0.721","locator":"Table 4"},{"field":"fit.n_trees","quote":"13 datasets with a total of 94 trees were chosen for E. camaldulensis","locator":"Methods, Compilation of biomass allometric equations"},{"field":"fit.dbh_min_cm","quote":"The ranges in the diameters and heights of trees in the dataset were 4.4–41.2 cm and 5.5–31.0 m for T. grandis, and 0.5–19.8 and 1.7–26.0 m for E. camaldulensis","locator":"Methods, Compilation of biomass allometric equations"},{"field":"fit.method","quote":"Linear regressions of untransformed data were used in the present study because log transformed data introduced a systematic bias","locator":"Methods, Reconstruction of biomass allometric equations"},{"field":"notes","quote":"general allometric equations for branches and leaves were excluded in the present study—only the stem and total aboveground biomass estimations were reported","locator":"Results and discussion, Construction of general allometric equations, p. 51"}],"check":[{"inputs":{"D":8,"H":10},"expected":1.3715,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":15,"H":18},"expected":5.187,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"General (multi-site) equation fitted on pooled data compiled from published Thai plantation studies (theses, proceedings, reports), not on new felled trees; validated by the authors on independent harvests. D in cm, H in m, output kg dry weight per tree. AGB is the sum of stem, branches and leaves. Component symbol in the paper: Wl. The paper labels Wb as bark in its tables but as branches in the text, so no branch or bark model is entered. Caution: although Tables 3 and 4 print this leaf model, the authors state that the slope of the branch and leaf components differed significantly among spacings (ANCOVA) and that \"general allometric equations for branches and leaves were excluded in the present study—only the stem and total aboveground biomass estimations were reported\" (Results and discussion, Construction of general allometric equations)."},{"id":"ounban-2016-euca-stem-d","source":"ounban-2016","name":"Eucalyptus camaldulensis stem (wood + bark) biomass from D","output":{"quantity":"stem_biomass"},"expression":"0.092 * D^2.429","published":{"expression":"0.092 * D^2.429","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Eucalyptus camaldulensis","family":"Myrtaceae","group":"broadleaf"},"region":{"scope":"national","countries":["TH"],"place":"Plantations across Thailand","biomes":["tropical"]},"stand":"plantation","fit":{"n_trees":94,"dbh_min_cm":0.5,"dbh_max_cm":19.8,"h_min_m":1.7,"h_max_m":26,"r2":0.946,"method":"Least-squares power regression on untransformed data (weighted data from 12-13 published datasets)"},"evidence":[{"field":"expression","quote":"Ws = 0.092(D)2.429","locator":"Table 6"},{"field":"fit.n_trees","quote":"13 datasets with a total of 94 trees were chosen for E. camaldulensis","locator":"Methods, Compilation of biomass allometric equations"},{"field":"fit.dbh_min_cm","quote":"The ranges in the diameters and heights of trees in the dataset were 4.4–41.2 cm and 5.5–31.0 m for T. grandis, and 0.5–19.8 and 1.7–26.0 m for E. camaldulensis","locator":"Methods, Compilation of biomass allometric equations"},{"field":"fit.method","quote":"Linear regressions of untransformed data were used in the present study because log transformed data introduced a systematic bias","locator":"Methods, Reconstruction of biomass allometric equations"}],"check":[{"inputs":{"D":8},"expected":14.3679,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":15},"expected":66.1475,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"General (multi-site) equation fitted on pooled data compiled from published Thai plantation studies (theses, proceedings, reports), not on new felled trees; validated by the authors on independent harvests. D in cm, H in m, output kg dry weight per tree. AGB is the sum of stem, branches and leaves. Component symbol in the paper: Ws. The paper labels Wb as bark in its tables but as branches in the text, so no branch or bark model is entered."},{"id":"ounban-2016-euca-stem-d2h","source":"ounban-2016","name":"Eucalyptus camaldulensis stem (wood + bark) biomass from D²H","output":{"quantity":"stem_biomass"},"expression":"0.019 * (D^2*H)^1.005","published":{"expression":"0.019 * (D^2*H)^1.005","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Eucalyptus camaldulensis","family":"Myrtaceae","group":"broadleaf"},"region":{"scope":"national","countries":["TH"],"place":"Plantations across Thailand","biomes":["tropical"]},"stand":"plantation","fit":{"n_trees":94,"dbh_min_cm":0.5,"dbh_max_cm":19.8,"h_min_m":1.7,"h_max_m":26,"r2":0.977,"method":"Least-squares power regression on untransformed data (weighted data from 12-13 published datasets)"},"evidence":[{"field":"expression","quote":"Ws = 0.019(D2H)1.005","locator":"Table 4"},{"field":"fit.n_trees","quote":"13 datasets with a total of 94 trees were chosen for E. camaldulensis","locator":"Methods, Compilation of biomass allometric equations"},{"field":"fit.dbh_min_cm","quote":"The ranges in the diameters and heights of trees in the dataset were 4.4–41.2 cm and 5.5–31.0 m for T. grandis, and 0.5–19.8 and 1.7–26.0 m for E. camaldulensis","locator":"Methods, Compilation of biomass allometric equations"},{"field":"fit.method","quote":"Linear regressions of untransformed data were used in the present study because log transformed data introduced a systematic bias","locator":"Methods, Reconstruction of biomass allometric equations"}],"check":[{"inputs":{"D":8,"H":10},"expected":12.5593,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":15,"H":18},"expected":80.2132,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"General (multi-site) equation fitted on pooled data compiled from published Thai plantation studies (theses, proceedings, reports), not on new felled trees; validated by the authors on independent harvests. D in cm, H in m, output kg dry weight per tree. AGB is the sum of stem, branches and leaves. Component symbol in the paper: Ws. The paper labels Wb as bark in its tables but as branches in the text, so no branch or bark model is entered."},{"id":"ounban-2016-teak-agb-d","source":"ounban-2016","name":"Tectona grandis AGB from D","output":{"quantity":"agb"},"expression":"0.077 * D^2.546","published":{"expression":"0.077 * D^2.546","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Tectona grandis","family":"Lamiaceae","group":"broadleaf"},"region":{"scope":"national","countries":["TH"],"place":"Plantations across Thailand","biomes":["tropical"]},"stand":"plantation","fit":{"n_trees":84,"dbh_min_cm":4.4,"dbh_max_cm":41.2,"h_min_m":5.5,"h_max_m":31,"r2":0.978,"method":"Least-squares power regression on untransformed data (weighted data from 12-13 published datasets)"},"evidence":[{"field":"expression","quote":"AGB = 0.077(D)2.546","locator":"Table 5"},{"field":"fit.n_trees","quote":"12 datasets with a total of 84 trees were chosen for T. grandis","locator":"Methods, Compilation of biomass allometric equations"},{"field":"fit.dbh_min_cm","quote":"The ranges in the diameters and heights of trees in the dataset were 4.4–41.2 cm and 5.5–31.0 m for T. grandis, and 0.5–19.8 and 1.7–26.0 m for E. camaldulensis","locator":"Methods, Compilation of biomass allometric equations"},{"field":"fit.method","quote":"Linear regressions of untransformed data were used in the present study because log transformed data introduced a systematic bias","locator":"Methods, Reconstruction of biomass allometric equations"}],"check":[{"inputs":{"D":15},"expected":76.001,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":25},"expected":279.0268,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"General (multi-site) equation fitted on pooled data compiled from published Thai plantation studies (theses, proceedings, reports), not on new felled trees; validated by the authors on independent harvests. D in cm, H in m, output kg dry weight per tree. AGB is the sum of stem, branches and leaves."},{"id":"ounban-2016-teak-agb-d2h","source":"ounban-2016","name":"Tectona grandis AGB from D²H","output":{"quantity":"agb"},"expression":"0.045 * (D^2*H)^0.921","published":{"expression":"0.045 * (D^2*H)^0.921","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Tectona grandis","family":"Lamiaceae","group":"broadleaf"},"region":{"scope":"national","countries":["TH"],"place":"Plantations across Thailand","biomes":["tropical"]},"stand":"plantation","fit":{"n_trees":84,"dbh_min_cm":4.4,"dbh_max_cm":41.2,"h_min_m":5.5,"h_max_m":31,"r2":0.975,"method":"Least-squares power regression on untransformed data (weighted data from 12-13 published datasets)"},"evidence":[{"field":"expression","quote":"AGB = 0.045(D2H)0.921","locator":"Table 3"},{"field":"fit.n_trees","quote":"12 datasets with a total of 84 trees were chosen for T. grandis","locator":"Methods, Compilation of biomass allometric equations"},{"field":"fit.dbh_min_cm","quote":"The ranges in the diameters and heights of trees in the dataset were 4.4–41.2 cm and 5.5–31.0 m for T. grandis, and 0.5–19.8 and 1.7–26.0 m for E. camaldulensis","locator":"Methods, Compilation of biomass allometric equations"},{"field":"fit.method","quote":"Linear regressions of untransformed data were used in the present study because log transformed data introduced a systematic bias","locator":"Methods, Reconstruction of biomass allometric equations"}],"check":[{"inputs":{"D":15,"H":14},"expected":75.0165,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":25,"H":20},"expected":266.9726,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"General (multi-site) equation fitted on pooled data compiled from published Thai plantation studies (theses, proceedings, reports), not on new felled trees; validated by the authors on independent harvests. D in cm, H in m, output kg dry weight per tree. AGB is the sum of stem, branches and leaves."},{"id":"ounban-2016-teak-leaf-d2h","source":"ounban-2016","name":"Tectona grandis leaf biomass from D²H","output":{"quantity":"foliage_biomass"},"expression":"0.022 * (D^2*H)^0.694","published":{"expression":"0.022 * (D^2*H)^0.694","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Tectona grandis","family":"Lamiaceae","group":"broadleaf"},"region":{"scope":"national","countries":["TH"],"place":"Plantations across Thailand","biomes":["tropical"]},"stand":"plantation","fit":{"n_trees":84,"dbh_min_cm":4.4,"dbh_max_cm":41.2,"h_min_m":5.5,"h_max_m":31,"r2":0.692,"method":"Least-squares power regression on untransformed data (weighted data from 12-13 published datasets)"},"evidence":[{"field":"expression","quote":"Wl = 0.022(D2H)0.694","locator":"Table 3"},{"field":"fit.n_trees","quote":"12 datasets with a total of 84 trees were chosen for T. grandis","locator":"Methods, Compilation of biomass allometric equations"},{"field":"fit.dbh_min_cm","quote":"The ranges in the diameters and heights of trees in the dataset were 4.4–41.2 cm and 5.5–31.0 m for T. grandis, and 0.5–19.8 and 1.7–26.0 m for E. camaldulensis","locator":"Methods, Compilation of biomass allometric equations"},{"field":"fit.method","quote":"Linear regressions of untransformed data were used in the present study because log transformed data introduced a systematic bias","locator":"Methods, Reconstruction of biomass allometric equations"},{"field":"notes","quote":"general allometric equations for branches and leaves were excluded in the present study—only the stem and total aboveground biomass estimations were reported","locator":"Results and discussion, Construction of general allometric equations, p. 51"}],"check":[{"inputs":{"D":15,"H":14},"expected":5.8918,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":25,"H":20},"expected":15.3348,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"General (multi-site) equation fitted on pooled data compiled from published Thai plantation studies (theses, proceedings, reports), not on new felled trees; validated by the authors on independent harvests. D in cm, H in m, output kg dry weight per tree. AGB is the sum of stem, branches and leaves. Component symbol in the paper: Wl. The paper labels Wb as bark in its tables but as branches in the text, so no branch or bark model is entered. Caution: although Tables 3 and 4 print this leaf model, the authors state that the slope of the branch and leaf components differed significantly among spacings (ANCOVA) and that \"general allometric equations for branches and leaves were excluded in the present study—only the stem and total aboveground biomass estimations were reported\" (Results and discussion, Construction of general allometric equations)."},{"id":"ounban-2016-teak-stem-d","source":"ounban-2016","name":"Tectona grandis stem (wood + bark) biomass from D","output":{"quantity":"stem_biomass"},"expression":"0.055 * D^2.558","published":{"expression":"0.055 * D^2.558","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Tectona grandis","family":"Lamiaceae","group":"broadleaf"},"region":{"scope":"national","countries":["TH"],"place":"Plantations across Thailand","biomes":["tropical"]},"stand":"plantation","fit":{"n_trees":84,"dbh_min_cm":4.4,"dbh_max_cm":41.2,"h_min_m":5.5,"h_max_m":31,"r2":0.978,"method":"Least-squares power regression on untransformed data (weighted data from 12-13 published datasets)"},"evidence":[{"field":"expression","quote":"Ws = 0.055(D)2.558","locator":"Table 5"},{"field":"fit.n_trees","quote":"12 datasets with a total of 84 trees were chosen for T. grandis","locator":"Methods, Compilation of biomass allometric equations"},{"field":"fit.dbh_min_cm","quote":"The ranges in the diameters and heights of trees in the dataset were 4.4–41.2 cm and 5.5–31.0 m for T. grandis, and 0.5–19.8 and 1.7–26.0 m for E. camaldulensis","locator":"Methods, Compilation of biomass allometric equations"},{"field":"fit.method","quote":"Linear regressions of untransformed data were used in the present study because log transformed data introduced a systematic bias","locator":"Methods, Reconstruction of biomass allometric equations"}],"check":[{"inputs":{"D":15},"expected":56.0795,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":25},"expected":207.154,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"General (multi-site) equation fitted on pooled data compiled from published Thai plantation studies (theses, proceedings, reports), not on new felled trees; validated by the authors on independent harvests. D in cm, H in m, output kg dry weight per tree. AGB is the sum of stem, branches and leaves. Component symbol in the paper: Ws. The paper labels Wb as bark in its tables but as branches in the text, so no branch or bark model is entered."},{"id":"ounban-2016-teak-stem-d2h","source":"ounban-2016","name":"Tectona grandis stem (wood + bark) biomass from D²H","output":{"quantity":"stem_biomass"},"expression":"0.031 * (D^2*H)^0.932","published":{"expression":"0.031 * (D^2*H)^0.932","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Tectona grandis","family":"Lamiaceae","group":"broadleaf"},"region":{"scope":"national","countries":["TH"],"place":"Plantations across Thailand","biomes":["tropical"]},"stand":"plantation","fit":{"n_trees":84,"dbh_min_cm":4.4,"dbh_max_cm":41.2,"h_min_m":5.5,"h_max_m":31,"r2":0.988,"method":"Least-squares power regression on untransformed data (weighted data from 12-13 published datasets)"},"evidence":[{"field":"expression","quote":"Ws = 0.031(D2H)0.932","locator":"Table 3"},{"field":"fit.n_trees","quote":"12 datasets with a total of 84 trees were chosen for T. grandis","locator":"Methods, Compilation of biomass allometric equations"},{"field":"fit.dbh_min_cm","quote":"The ranges in the diameters and heights of trees in the dataset were 4.4–41.2 cm and 5.5–31.0 m for T. grandis, and 0.5–19.8 and 1.7–26.0 m for E. camaldulensis","locator":"Methods, Compilation of biomass allometric equations"},{"field":"fit.method","quote":"Linear regressions of untransformed data were used in the present study because log transformed data introduced a systematic bias","locator":"Methods, Reconstruction of biomass allometric equations"}],"check":[{"inputs":{"D":15,"H":14},"expected":56.466,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":25,"H":20},"expected":204.0243,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"General (multi-site) equation fitted on pooled data compiled from published Thai plantation studies (theses, proceedings, reports), not on new felled trees; validated by the authors on independent harvests. D in cm, H in m, output kg dry weight per tree. AGB is the sum of stem, branches and leaves. Component symbol in the paper: Ws. The paper labels Wb as bark in its tables but as branches in the text, so no branch or bark model is entered."},{"id":"owate-2018-agb-poly","source":"owate-2018","name":"Grevillea robusta on farms, polynomial in DBH (selected model)","output":{"quantity":"agb"},"expression":"0.248 * D^2 + 6.243 * D - 15.45","published":{"expression":"0.248 * DBH^2 + 6.243 * DBH - 15.45","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Grevillea robusta","family":"Proteaceae","group":"broadleaf"},"region":{"scope":"site","countries":["KE"],"place":"Maragua subcounty, Murang'a County, central Kenya (farms)","biomes":["tropical"]},"stand":"agroforestry","fit":{"n_trees":33,"dbh_min_cm":1.5,"dbh_max_cm":29.8,"h_min_m":3.6,"h_max_m":24.8,"r2":0.94,"method":"polynomial regression on untransformed data"},"evidence":[{"field":"expression","quote":"AGB=0.248DBH2 + 6.243DBH – 15.45","locator":"Table 7"},{"field":"fit.n_trees","quote":"33","locator":"Appendix Table 10 (trees 1-33)"}],"check":[{"inputs":{"D":15},"expected":134,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":28},"expected":353.79,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Selected by the authors. Returns negative AGB below about 2.3 cm DBH, inside the fitted range; use owate-2018-agb-power for trees that small. the authors say the trees do not grow beyond 40 cm DBH and the model should not be applied to larger trees. DBH range from Appendix Table 10."},{"id":"owate-2018-agb-power","source":"owate-2018","name":"Grevillea robusta on farms, power model in DBH","output":{"quantity":"agb"},"expression":"1.384 * D^1.665","published":{"expression":"1.384 * DBH^1.665","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Grevillea robusta","family":"Proteaceae","group":"broadleaf"},"region":{"scope":"site","countries":["KE"],"place":"Maragua subcounty, Murang'a County, central Kenya (farms)","biomes":["tropical"]},"stand":"agroforestry","fit":{"n_trees":33,"dbh_min_cm":1.5,"dbh_max_cm":29.8,"h_min_m":3.6,"h_max_m":24.8,"r2":0.98,"method":"power regression"},"evidence":[{"field":"expression","quote":"AGB=1.384DBH1.665","locator":"Table 6 (power model)"}],"check":[{"inputs":{"D":15},"expected":125.7,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":28},"expected":355.35,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Table 6 lists it with R2 0.98, SEE 0.99 and MRE 3.2; the authors selected the polynomial instead (Table 7). Safer than the polynomial for small trees."},{"id":"pan-2022-bgb-total-additive-heilongjiang","source":"pan-2022","name":"Birch total root biomass, additive system (coarse + medium + fine), Heilongjiang site","output":{"quantity":"bgb"},"expression":"exp(-0.9679 + 2.2547 * ln(D) - 1.1789 * ln(H)) + exp(-2.7028 + 2.2534 * ln(D) - 0.6586 * ln(H)) + exp(-3.7903 + 2.313 * ln(D) - 0.361 * ln(H))","published":{"expression":"exp(-0.9679 + 2.2547 * ln(DBH) - 1.1789 * ln(HT) + 0.2733 * 0 - 0.8561 * 0) + exp(-2.7028 + 2.2534 * ln(DBH) - 0.6586 * ln(HT) - 0.3815 * 0 - 0.7157 * 0) + exp(-3.7903 + 2.313 * ln(DBH) - 0.361 * ln(HT) - 0.3346 * 0 - 0.2382 * 0)","units":{"DBH":"cm","HT":"m"},"variables":{"DBH":"D","HT":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Betula platyphylla","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"site","countries":["CN"],"place":"Maoer mountains, Heilongjiang Province, Northeast China","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":493,"dbh_min_cm":3.4,"dbh_max_cm":11.9,"h_min_m":4.5,"h_max_m":14,"method":"log-transformed (multiplicative error) nonlinear system with site dummies"},"evidence":[{"field":"fit.n_trees","quote":"with a total of 493 sample trees","locator":"Section 2.1"},{"field":"fit.dbh_min_cm","quote":"Min 3.40 4.50 0.10 0.02 0.02 0.14","locator":"Table 2 (DBH 3.4 cm, HT 4.5 m minimum)"},{"field":"fit.dbh_max_cm","quote":"Max 11.90 14.00 9.29 10.19 3.98 20.27","locator":"Table 2 (DBH 11.9 cm, HT 14.0 m maximum)"},{"field":"expression","quote":"Y4 = Yt = M ∑ m=1 Ym = f1(X1, B1) + f2(X2, β2) + f3(X3, β3) + ε4","locator":"Eq. 7, Section 2.4"},{"field":"expression","quote":"fc(D, H; βt) = exp(βc1 + βc2 ln DBH + βc3 ln HT + βcs2S2 + βcs3S3 + εc)","locator":"Eq. 21, Section 3.2"},{"field":"expression","quote":"Coarse βc1 −0.9679 0.2008 0.0000; βc2 2.2547 0.1435 0.0000; βc3 −1.1789 0.1369 0.0000; βcs2 0.2733 0.0932 0.0034; βcs3 −0.8561 0.0943 0.0000","locator":"Table 5"},{"field":"expression","quote":"Medium βm1 −2.7028 0.1985 0.0000; βm2 2.2534 0.1356 0.0000; βm3 −0.6586 0.1282 0.0000; βms2 −0.3815 0.1287 0.0031; βms3 −0.7157 0.0746 0.0000","locator":"Table 5"},{"field":"expression","quote":"Fine βc1 −3.7903 0.2251 0.0000; βc2 2.313 0.1463 0.0000; βc3 −0.361 0.1446 0.0126; βcs2 −0.3346 0.1323 0.0116; βcs3 −0.2382 0.0572 0.0000","locator":"Table 5 (fine-root rows are printed with the symbols of the coarse root, βc...; read as the fine-root parameters)"}],"check":[{"inputs":{"D":8,"H":9.4},"expected":5.837,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":11,"H":13},"expected":9.1585,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Sum of the three additive root-class equations (Eq. 7, 21-23). Site: Heilongjiang (Maoer mountains), baseline site with S2 = 0 and S3 = 0. Table 5 prints the fine-root rows with the symbols of the coarse root; the order of the rows (Coarse, Medium, Fine) is used to assign them. The paper fits one model with site dummies (Liaoning when S2 = 1 and S3 = 0, Jilin when S2 = 0 and S3 = 1, Heilongjiang when S2 = 0 and S3 = 0); this file sets the dummies for one site. It is fitted on all 493 trees from the three sites (Heilongjiang 333, Jilin 26, Liaoning 134 per Table 1), so the site term is a shift on common slopes. The paper reports no back-transform correction factor for the log-normal error and none is applied. The paper reports only ten-fold cross-validation R2, not a fit R2, so none is given here. Roots were excavated and sieved into coarse (>5 mm), medium (2-5 mm) and fine (<2 mm) classes; the total includes all three."},{"id":"pan-2022-bgb-total-additive-jilin","source":"pan-2022","name":"Birch total root biomass, additive system (coarse + medium + fine), Jilin site","output":{"quantity":"bgb"},"expression":"exp(-0.9679 + 2.2547 * ln(D) - 1.1789 * ln(H) - 0.8561) + exp(-2.7028 + 2.2534 * ln(D) - 0.6586 * ln(H) - 0.7157) + exp(-3.7903 + 2.313 * ln(D) - 0.361 * ln(H) - 0.2382)","published":{"expression":"exp(-0.9679 + 2.2547 * ln(DBH) - 1.1789 * ln(HT) + 0.2733 * 0 - 0.8561 * 1) + exp(-2.7028 + 2.2534 * ln(DBH) - 0.6586 * ln(HT) - 0.3815 * 0 - 0.7157 * 1) + exp(-3.7903 + 2.313 * ln(DBH) - 0.361 * ln(HT) - 0.3346 * 0 - 0.2382 * 1)","units":{"DBH":"cm","HT":"m"},"variables":{"DBH":"D","HT":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Betula platyphylla","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"site","countries":["CN"],"place":"Jilin Province, Northeast China","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":493,"dbh_min_cm":3.4,"dbh_max_cm":11.9,"h_min_m":4.5,"h_max_m":14,"method":"log-transformed (multiplicative error) nonlinear system with site dummies"},"evidence":[{"field":"fit.n_trees","quote":"with a total of 493 sample trees","locator":"Section 2.1"},{"field":"fit.dbh_min_cm","quote":"Min 3.40 4.50 0.10 0.02 0.02 0.14","locator":"Table 2 (DBH 3.4 cm, HT 4.5 m minimum)"},{"field":"fit.dbh_max_cm","quote":"Max 11.90 14.00 9.29 10.19 3.98 20.27","locator":"Table 2 (DBH 11.9 cm, HT 14.0 m maximum)"},{"field":"expression","quote":"Y4 = Yt = M ∑ m=1 Ym = f1(X1, B1) + f2(X2, β2) + f3(X3, β3) + ε4","locator":"Eq. 7, Section 2.4"},{"field":"expression","quote":"fc(D, H; βt) = exp(βc1 + βc2 ln DBH + βc3 ln HT + βcs2S2 + βcs3S3 + εc)","locator":"Eq. 21, Section 3.2"},{"field":"expression","quote":"Coarse βc1 −0.9679 0.2008 0.0000; βc2 2.2547 0.1435 0.0000; βc3 −1.1789 0.1369 0.0000; βcs2 0.2733 0.0932 0.0034; βcs3 −0.8561 0.0943 0.0000","locator":"Table 5"},{"field":"expression","quote":"Medium βm1 −2.7028 0.1985 0.0000; βm2 2.2534 0.1356 0.0000; βm3 −0.6586 0.1282 0.0000; βms2 −0.3815 0.1287 0.0031; βms3 −0.7157 0.0746 0.0000","locator":"Table 5"},{"field":"expression","quote":"Fine βc1 −3.7903 0.2251 0.0000; βc2 2.313 0.1463 0.0000; βc3 −0.361 0.1446 0.0126; βcs2 −0.3346 0.1323 0.0116; βcs3 −0.2382 0.0572 0.0000","locator":"Table 5 (fine-root rows are printed with the symbols of the coarse root, βc...; read as the fine-root parameters)"}],"check":[{"inputs":{"D":8,"H":9.4},"expected":3.0343,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":11,"H":13},"expected":4.8998,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Sum of the three additive root-class equations (Eq. 7, 21-23). Site: Jilin, S2 = 0 and S3 = 1. Table 5 prints the fine-root rows with the symbols of the coarse root; the order of the rows (Coarse, Medium, Fine) is used to assign them. The paper fits one model with site dummies (Liaoning when S2 = 1 and S3 = 0, Jilin when S2 = 0 and S3 = 1, Heilongjiang when S2 = 0 and S3 = 0); this file sets the dummies for one site. It is fitted on all 493 trees from the three sites (Heilongjiang 333, Jilin 26, Liaoning 134 per Table 1), so the site term is a shift on common slopes. The paper reports no back-transform correction factor for the log-normal error and none is applied. The paper reports only ten-fold cross-validation R2, not a fit R2, so none is given here. Roots were excavated and sieved into coarse (>5 mm), medium (2-5 mm) and fine (<2 mm) classes; the total includes all three."},{"id":"pan-2022-bgb-total-additive-liaoning","source":"pan-2022","name":"Birch total root biomass, additive system (coarse + medium + fine), Liaoning site","output":{"quantity":"bgb"},"expression":"exp(-0.9679 + 2.2547 * ln(D) - 1.1789 * ln(H) + 0.2733) + exp(-2.7028 + 2.2534 * ln(D) - 0.6586 * ln(H) - 0.3815) + exp(-3.7903 + 2.313 * ln(D) - 0.361 * ln(H) - 0.3346)","published":{"expression":"exp(-0.9679 + 2.2547 * ln(DBH) - 1.1789 * ln(HT) + 0.2733 * 1 - 0.8561 * 0) + exp(-2.7028 + 2.2534 * ln(DBH) - 0.6586 * ln(HT) - 0.3815 * 1 - 0.7157 * 0) + exp(-3.7903 + 2.313 * ln(DBH) - 0.361 * ln(HT) - 0.3346 * 1 - 0.2382 * 0)","units":{"DBH":"cm","HT":"m"},"variables":{"DBH":"D","HT":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Betula platyphylla","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"site","countries":["CN"],"place":"Liaoning Province, Northeast China","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":493,"dbh_min_cm":3.4,"dbh_max_cm":11.9,"h_min_m":4.5,"h_max_m":14,"method":"log-transformed (multiplicative error) nonlinear system with site dummies"},"evidence":[{"field":"fit.n_trees","quote":"with a total of 493 sample trees","locator":"Section 2.1"},{"field":"fit.dbh_min_cm","quote":"Min 3.40 4.50 0.10 0.02 0.02 0.14","locator":"Table 2 (DBH 3.4 cm, HT 4.5 m minimum)"},{"field":"fit.dbh_max_cm","quote":"Max 11.90 14.00 9.29 10.19 3.98 20.27","locator":"Table 2 (DBH 11.9 cm, HT 14.0 m maximum)"},{"field":"expression","quote":"Y4 = Yt = M ∑ m=1 Ym = f1(X1, B1) + f2(X2, β2) + f3(X3, β3) + ε4","locator":"Eq. 7, Section 2.4"},{"field":"expression","quote":"fc(D, H; βt) = exp(βc1 + βc2 ln DBH + βc3 ln HT + βcs2S2 + βcs3S3 + εc)","locator":"Eq. 21, Section 3.2"},{"field":"expression","quote":"Coarse βc1 −0.9679 0.2008 0.0000; βc2 2.2547 0.1435 0.0000; βc3 −1.1789 0.1369 0.0000; βcs2 0.2733 0.0932 0.0034; βcs3 −0.8561 0.0943 0.0000","locator":"Table 5"},{"field":"expression","quote":"Medium βm1 −2.7028 0.1985 0.0000; βm2 2.2534 0.1356 0.0000; βm3 −0.6586 0.1282 0.0000; βms2 −0.3815 0.1287 0.0031; βms3 −0.7157 0.0746 0.0000","locator":"Table 5"},{"field":"expression","quote":"Fine βc1 −3.7903 0.2251 0.0000; βc2 2.313 0.1463 0.0000; βc3 −0.361 0.1446 0.0126; βcs2 −0.3346 0.1323 0.0116; βcs3 −0.2382 0.0572 0.0000","locator":"Table 5 (fine-root rows are printed with the symbols of the coarse root, βc...; read as the fine-root parameters)"}],"check":[{"inputs":{"D":8,"H":9.4},"expected":5.8839,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":11,"H":13},"expected":8.9279,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Sum of the three additive root-class equations (Eq. 7, 21-23). Site: Liaoning, S2 = 1 and S3 = 0. Table 5 prints the fine-root rows with the symbols of the coarse root; the order of the rows (Coarse, Medium, Fine) is used to assign them. The paper fits one model with site dummies (Liaoning when S2 = 1 and S3 = 0, Jilin when S2 = 0 and S3 = 1, Heilongjiang when S2 = 0 and S3 = 0); this file sets the dummies for one site. It is fitted on all 493 trees from the three sites (Heilongjiang 333, Jilin 26, Liaoning 134 per Table 1), so the site term is a shift on common slopes. The paper reports no back-transform correction factor for the log-normal error and none is applied. The paper reports only ten-fold cross-validation R2, not a fit R2, so none is given here. Roots were excavated and sieved into coarse (>5 mm), medium (2-5 mm) and fine (<2 mm) classes; the total includes all three."},{"id":"pan-2022-bgb-total-disagg-heilongjiang","source":"pan-2022","name":"Birch total root biomass, disaggregated model (Eq. 24), Heilongjiang site","output":{"quantity":"bgb"},"expression":"exp(-1.0113 + 2.2706 * ln(D) - 0.8676 * ln(H))","published":{"expression":"exp(-1.0113 + 2.2706 * ln(DBH) - 0.8676 * ln(HT) - 0.0108 * 0 - 0.6541 * 0)","units":{"DBH":"cm","HT":"m"},"variables":{"DBH":"D","HT":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Betula platyphylla","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"site","countries":["CN"],"place":"Maoer mountains, Heilongjiang Province, Northeast China","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":493,"dbh_min_cm":3.4,"dbh_max_cm":11.9,"h_min_m":4.5,"h_max_m":14,"method":"log-transformed (multiplicative error) nonlinear system with site dummies"},"evidence":[{"field":"fit.n_trees","quote":"with a total of 493 sample trees","locator":"Section 2.1"},{"field":"fit.dbh_min_cm","quote":"Min 3.40 4.50 0.10 0.02 0.02 0.14","locator":"Table 2 (DBH 3.4 cm, HT 4.5 m minimum)"},{"field":"fit.dbh_max_cm","quote":"Max 11.90 14.00 9.29 10.19 3.98 20.27","locator":"Table 2 (DBH 11.9 cm, HT 14.0 m maximum)"},{"field":"expression","quote":"ft(D, H; βt) = exp[Bt1 + βt2 ln DBH + βt3 ln HT + βts2S2 + βts3S3]","locator":"Eq. 24, Section 3.3"},{"field":"expression","quote":"ft βt1 −1.0113 0.1807 0.0000; βt2 2.2706 0.1251 0.0000; βt3 −0.8676 0.12 0.0000; βts2 −0.0108 0.0946 0.9088; βts3 −0.6541 0.0682 0.0000","locator":"Table 6"}],"check":[{"inputs":{"D":8,"H":9.4},"expected":5.8488,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":11,"H":13},"expected":9.0976,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Total root biomass function ft of the disaggregated system. Site: Heilongjiang (Maoer mountains), baseline site with S2 = 0 and S3 = 0. The paper fits one model with site dummies (Liaoning when S2 = 1 and S3 = 0, Jilin when S2 = 0 and S3 = 1, Heilongjiang when S2 = 0 and S3 = 0); this file sets the dummies for one site. It is fitted on all 493 trees from the three sites (Heilongjiang 333, Jilin 26, Liaoning 134 per Table 1), so the site term is a shift on common slopes. The paper reports no back-transform correction factor for the log-normal error and none is applied. The paper reports only ten-fold cross-validation R2, not a fit R2, so none is given here. Roots were excavated and sieved into coarse (>5 mm), medium (2-5 mm) and fine (<2 mm) classes; the total includes all three."},{"id":"pan-2022-bgb-total-disagg-jilin","source":"pan-2022","name":"Birch total root biomass, disaggregated model (Eq. 24), Jilin site","output":{"quantity":"bgb"},"expression":"exp(-1.0113 + 2.2706 * ln(D) - 0.8676 * ln(H) - 0.6541)","published":{"expression":"exp(-1.0113 + 2.2706 * ln(DBH) - 0.8676 * ln(HT) - 0.0108 * 0 - 0.6541 * 1)","units":{"DBH":"cm","HT":"m"},"variables":{"DBH":"D","HT":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Betula platyphylla","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"site","countries":["CN"],"place":"Jilin Province, Northeast China","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":493,"dbh_min_cm":3.4,"dbh_max_cm":11.9,"h_min_m":4.5,"h_max_m":14,"method":"log-transformed (multiplicative error) nonlinear system with site dummies"},"evidence":[{"field":"fit.n_trees","quote":"with a total of 493 sample trees","locator":"Section 2.1"},{"field":"fit.dbh_min_cm","quote":"Min 3.40 4.50 0.10 0.02 0.02 0.14","locator":"Table 2 (DBH 3.4 cm, HT 4.5 m minimum)"},{"field":"fit.dbh_max_cm","quote":"Max 11.90 14.00 9.29 10.19 3.98 20.27","locator":"Table 2 (DBH 11.9 cm, HT 14.0 m maximum)"},{"field":"expression","quote":"ft(D, H; βt) = exp[Bt1 + βt2 ln DBH + βt3 ln HT + βts2S2 + βts3S3]","locator":"Eq. 24, Section 3.3"},{"field":"expression","quote":"ft βt1 −1.0113 0.1807 0.0000; βt2 2.2706 0.1251 0.0000; βt3 −0.8676 0.12 0.0000; βts2 −0.0108 0.0946 0.9088; βts3 −0.6541 0.0682 0.0000","locator":"Table 6"}],"check":[{"inputs":{"D":8,"H":9.4},"expected":3.0409,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":11,"H":13},"expected":4.7299,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Total root biomass function ft of the disaggregated system. Site: Jilin, S2 = 0 and S3 = 1. The paper fits one model with site dummies (Liaoning when S2 = 1 and S3 = 0, Jilin when S2 = 0 and S3 = 1, Heilongjiang when S2 = 0 and S3 = 0); this file sets the dummies for one site. It is fitted on all 493 trees from the three sites (Heilongjiang 333, Jilin 26, Liaoning 134 per Table 1), so the site term is a shift on common slopes. The paper reports no back-transform correction factor for the log-normal error and none is applied. The paper reports only ten-fold cross-validation R2, not a fit R2, so none is given here. Roots were excavated and sieved into coarse (>5 mm), medium (2-5 mm) and fine (<2 mm) classes; the total includes all three."},{"id":"pan-2022-bgb-total-disagg-liaoning","source":"pan-2022","name":"Birch total root biomass, disaggregated model (Eq. 24), Liaoning site","output":{"quantity":"bgb"},"expression":"exp(-1.0113 + 2.2706 * ln(D) - 0.8676 * ln(H) - 0.0108)","published":{"expression":"exp(-1.0113 + 2.2706 * ln(DBH) - 0.8676 * ln(HT) - 0.0108 * 1 - 0.6541 * 0)","units":{"DBH":"cm","HT":"m"},"variables":{"DBH":"D","HT":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Betula platyphylla","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"site","countries":["CN"],"place":"Liaoning Province, Northeast China","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":493,"dbh_min_cm":3.4,"dbh_max_cm":11.9,"h_min_m":4.5,"h_max_m":14,"method":"log-transformed (multiplicative error) nonlinear system with site dummies"},"evidence":[{"field":"fit.n_trees","quote":"with a total of 493 sample trees","locator":"Section 2.1"},{"field":"fit.dbh_min_cm","quote":"Min 3.40 4.50 0.10 0.02 0.02 0.14","locator":"Table 2 (DBH 3.4 cm, HT 4.5 m minimum)"},{"field":"fit.dbh_max_cm","quote":"Max 11.90 14.00 9.29 10.19 3.98 20.27","locator":"Table 2 (DBH 11.9 cm, HT 14.0 m maximum)"},{"field":"expression","quote":"ft(D, H; βt) = exp[Bt1 + βt2 ln DBH + βt3 ln HT + βts2S2 + βts3S3]","locator":"Eq. 24, Section 3.3"},{"field":"expression","quote":"ft βt1 −1.0113 0.1807 0.0000; βt2 2.2706 0.1251 0.0000; βt3 −0.8676 0.12 0.0000; βts2 −0.0108 0.0946 0.9088; βts3 −0.6541 0.0682 0.0000","locator":"Table 6"}],"check":[{"inputs":{"D":8,"H":9.4},"expected":5.786,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":11,"H":13},"expected":8.9999,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Total root biomass function ft of the disaggregated system. Site: Liaoning, S2 = 1 and S3 = 0. The paper fits one model with site dummies (Liaoning when S2 = 1 and S3 = 0, Jilin when S2 = 0 and S3 = 1, Heilongjiang when S2 = 0 and S3 = 0); this file sets the dummies for one site. It is fitted on all 493 trees from the three sites (Heilongjiang 333, Jilin 26, Liaoning 134 per Table 1), so the site term is a shift on common slopes. The paper reports no back-transform correction factor for the log-normal error and none is applied. The paper reports only ten-fold cross-validation R2, not a fit R2, so none is given here. Roots were excavated and sieved into coarse (>5 mm), medium (2-5 mm) and fine (<2 mm) classes; the total includes all three."},{"id":"paramonov-2022-agb","source":"paramonov-2022","name":"Willow (Salix spp.) aboveground biomass, northern taiga, Arkhangelsk","output":{"quantity":"agb"},"expression":"exp(-2.2814 + 2.3413 * ln(D))","published":{"expression":"exp(-2.2814 + 2.3413 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"genus","name":"Salix","family":"Salicaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["RU"],"place":"Arkhangelsk region, northern taiga, Russia","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":52,"rse":0.207,"method":"static allometry ln Pi = a0 + a1 ln D, regression fitted in Statgraphics-19"},"evidence":[{"field":"expression","quote":"ln Pi = a0 + a1ln D (1); ln Pa –2,2814 2,3413 0,916 0,207 (coefficients a0, a1, adjR2, SE)","locator":"Eq. 1 and Table 2"},{"field":"fit.n_trees","quote":"Характеристика модельных деревьев ивы, взятых на 52 пробных площадях Архангельской области","locator":"Table 1 caption"}],"check":[{"inputs":{"D":5},"expected":4.4228,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":8},"expected":13.2925,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":12},"expected":34.3469,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Model ln Pi = a0 + a1 ln D with natural log (stated as ln); biomass Pi in kg oven-dry, D at breast height in cm. The paper states no back-transformation correction factor, so none is applied. The SE printed in Table 2 is used as rse. The paper reports adjusted R2 only, so r2 is omitted. n = 52 sample trees taken from the 52 plots in Table 1. Stem biomass is stem with bark ('Ps')."},{"id":"paramonov-2022-branch","source":"paramonov-2022","name":"Willow (Salix spp.) branch biomass, northern taiga, Arkhangelsk","output":{"quantity":"branch_biomass"},"expression":"exp(-5.0265 + 2.722 * ln(D))","published":{"expression":"exp(-5.0265 + 2.722 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"genus","name":"Salix","family":"Salicaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["RU"],"place":"Arkhangelsk region, northern taiga, Russia","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":52,"rse":0.468,"method":"static allometry ln Pi = a0 + a1 ln D, regression fitted in Statgraphics-19"},"evidence":[{"field":"expression","quote":"ln Pi = a0 + a1ln D (1); ln Pb –5,0265 2,7220 0,742 0,468 (coefficients a0, a1, adjR2, SE)","locator":"Eq. 1 and Table 2"},{"field":"fit.n_trees","quote":"Характеристика модельных деревьев ивы, взятых на 52 пробных площадях Архангельской области","locator":"Table 1 caption"}],"check":[{"inputs":{"D":5},"expected":0.5243,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":8},"expected":1.8846,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":12},"expected":5.6826,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Model ln Pi = a0 + a1 ln D with natural log (stated as ln); biomass Pi in kg oven-dry, D at breast height in cm. The paper states no back-transformation correction factor, so none is applied. The SE printed in Table 2 is used as rse. The paper reports adjusted R2 only, so r2 is omitted. n = 52 sample trees taken from the 52 plots in Table 1. Stem biomass is stem with bark ('Ps')."},{"id":"paramonov-2022-foliage","source":"paramonov-2022","name":"Willow (Salix spp.) foliage biomass, northern taiga, Arkhangelsk","output":{"quantity":"foliage_biomass"},"expression":"exp(-5.276 + 1.9644 * ln(D))","published":{"expression":"exp(-5.276 + 1.9644 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"genus","name":"Salix","family":"Salicaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["RU"],"place":"Arkhangelsk region, northern taiga, Russia","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":52,"rse":0.435,"method":"static allometry ln Pi = a0 + a1 ln D, regression fitted in Statgraphics-19"},"evidence":[{"field":"expression","quote":"ln Pi = a0 + a1ln D (1); ln Pf –5,2760 1, 9644 0,633 0,435 (coefficients a0, a1, adjR2, SE)","locator":"Eq. 1 and Table 2"},{"field":"fit.n_trees","quote":"Характеристика модельных деревьев ивы, взятых на 52 пробных площадях Архангельской области","locator":"Table 1 caption"}],"check":[{"inputs":{"D":5},"expected":0.1207,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":8},"expected":0.3039,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":12},"expected":0.6739,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Model ln Pi = a0 + a1 ln D with natural log (stated as ln); biomass Pi in kg oven-dry, D at breast height in cm. The paper states no back-transformation correction factor, so none is applied. The SE printed in Table 2 is used as rse. The paper reports adjusted R2 only, so r2 is omitted. n = 52 sample trees taken from the 52 plots in Table 1. Stem biomass is stem with bark ('Ps')."},{"id":"paramonov-2022-stem","source":"paramonov-2022","name":"Willow (Salix spp.) stem biomass with bark, northern taiga, Arkhangelsk","output":{"quantity":"stem_biomass"},"expression":"exp(-2.3671 + 2.2861 * ln(D))","published":{"expression":"exp(-2.3671 + 2.2861 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"genus","name":"Salix","family":"Salicaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["RU"],"place":"Arkhangelsk region, northern taiga, Russia","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":52,"rse":0.233,"method":"static allometry ln Pi = a0 + a1 ln D, regression fitted in Statgraphics-19"},"evidence":[{"field":"expression","quote":"ln Pi = a0 + a1ln D (1); ln Ps –2,3671 2,2861 0,891 0,233 (coefficients a0, a1, adjR2, SE)","locator":"Eq. 1 and Table 2"},{"field":"fit.n_trees","quote":"Характеристика модельных деревьев ивы, взятых на 52 пробных площадях Архангельской области","locator":"Table 1 caption"}],"check":[{"inputs":{"D":5},"expected":3.7145,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":8},"expected":10.8777,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":12},"expected":27.4851,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Model ln Pi = a0 + a1 ln D with natural log (stated as ln); biomass Pi in kg oven-dry, D at breast height in cm. The paper states no back-transformation correction factor, so none is applied. The SE printed in Table 2 is used as rse. The paper reports adjusted R2 only, so r2 is omitted. n = 52 sample trees taken from the 52 plots in Table 1. Stem biomass is stem with bark ('Ps')."},{"id":"pathibang-2026-branch-quadratic","source":"pathibang-2026","name":"Sonneratia alba branch biomass, quadratic model (D)","output":{"quantity":"branch_biomass"},"expression":"287.956 - 36.906 * D + 1.157 * D^2","published":{"expression":"287.956 - 36.906 * D + 1.157 * D^2","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Sonneratia alba","group":"mangrove"},"region":{"scope":"site","countries":["ID"],"place":"Tanah Merah Mangrove Forest, Kupang, East Nusa Tenggara","biomes":["tropical","mangrove"]},"stand":"natural","fit":{"n_trees":8,"r2":0.705,"method":"quadratic model B = a + bD + cD^2"},"evidence":[{"field":"expression","quote":"Quadratic B = 287.956-36.906D+1.157D^2 70.5% 35.502","locator":"Table 4, Quadratic row"},{"field":"fit.n_trees","quote":"A total of 14 trees were felled to serve as measurement samples: 8 for model development and 6 for model validation.","locator":"Results and Discussion, p. 908"},{"field":"fit.r2","quote":"70.5%","locator":"Table 4, Quadratic row"}],"check":[{"inputs":{"D":12},"expected":11.692,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":20},"expected":12.636,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":26},"expected":110.53,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Stand origin is not stated in the paper; classified natural from its reference to natural forest stands. Fitted on 8 of the 14 felled trees (the other 6 were held out for validation); the paper prints no DBH range for the fitting trees. The polynomial goes negative between about D = 14 and 18 cm, inside the sampled size range; the paper's Conclusion prints the linear coefficient as 3.906D, while Tables 4 and 12 print 36.906D (table value used)."},{"id":"pathibang-2026-leaf-multiple-power","source":"pathibang-2026","name":"Sonneratia alba leaf biomass, multiple power model (D, H)","output":{"quantity":"foliage_biomass"},"expression":"0.000022 * D^2.124 * H^2.621","published":{"expression":"0.000022 * D^2.124 * H^2.621","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Sonneratia alba","group":"mangrove"},"region":{"scope":"site","countries":["ID"],"place":"Tanah Merah Mangrove Forest, Kupang, East Nusa Tenggara","biomes":["tropical","mangrove"]},"stand":"natural","fit":{"n_trees":8,"r2":0.738,"method":"multiple power model B = a D^b H^c"},"evidence":[{"field":"expression","quote":"Multiple Power B = 0.000022D^(2.124) H^(2.621) 73.8% 0.717","locator":"Table 5, Multiple Power row"},{"field":"fit.n_trees","quote":"A total of 14 trees were felled to serve as measurement samples: 8 for model development and 6 for model validation.","locator":"Results and Discussion, p. 908"},{"field":"fit.r2","quote":"73.8%","locator":"Table 5, Multiple Power row"}],"check":[{"inputs":{"D":12,"H":7},"expected":0.7073,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":18,"H":8},"expected":2.3748,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":26,"H":10},"expected":9.3074,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Stand origin is not stated in the paper; classified natural from its reference to natural forest stands. Fitted on 8 of the 14 felled trees (the other 6 were held out for validation); the paper prints no DBH range for the fitting trees."},{"id":"pathibang-2026-stem-exponential","source":"pathibang-2026","name":"Sonneratia alba stem biomass, exponential model (D)","output":{"quantity":"stem_biomass"},"expression":"4.884 * exp(0.127 * D)","published":{"expression":"4.884 * exp(0.127 * D)","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Sonneratia alba","group":"mangrove"},"region":{"scope":"site","countries":["ID"],"place":"Tanah Merah Mangrove Forest, Kupang, East Nusa Tenggara","biomes":["tropical","mangrove"]},"stand":"natural","fit":{"n_trees":8,"r2":0.931,"method":"exponential model B = a e^(bD)"},"evidence":[{"field":"expression","quote":"Exponential B = 4.884e^(0.127D) 93.1% 0.193","locator":"Table 3, Exponential row"},{"field":"fit.n_trees","quote":"A total of 14 trees were felled to serve as measurement samples: 8 for model development and 6 for model validation.","locator":"Results and Discussion, p. 908"},{"field":"fit.r2","quote":"93.1%","locator":"Table 3, Exponential row"}],"check":[{"inputs":{"D":12},"expected":22.42,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":18},"expected":48.037,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":26},"expected":132.68,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Stand origin is not stated in the paper; classified natural from its reference to natural forest stands. Fitted on 8 of the 14 felled trees (the other 6 were held out for validation); the paper prints no DBH range for the fitting trees."},{"id":"pathibang-2026-stem-multiple-power","source":"pathibang-2026","name":"Sonneratia alba stem biomass, multiple power model (D, H)","output":{"quantity":"stem_biomass"},"expression":"0.042 * D^2.569 * H^0.162","published":{"expression":"0.042 * D^2.569 * H^0.162","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Sonneratia alba","group":"mangrove"},"region":{"scope":"site","countries":["ID"],"place":"Tanah Merah Mangrove Forest, Kupang, East Nusa Tenggara","biomes":["tropical","mangrove"]},"stand":"natural","fit":{"n_trees":8,"r2":0.97,"method":"multiple power model B = a D^b H^c"},"evidence":[{"field":"expression","quote":"Multiple Power B = 0.042D^(2.569)H^(0.162) 97% 0.138","locator":"Table 3, Multiple Power row"},{"field":"fit.n_trees","quote":"A total of 14 trees were felled to serve as measurement samples: 8 for model development and 6 for model validation.","locator":"Results and Discussion, p. 908"},{"field":"fit.r2","quote":"97%","locator":"Table 3, Multiple Power row"}],"check":[{"inputs":{"D":12,"H":7},"expected":34.086,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":18,"H":8},"expected":98.706,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":26,"H":10},"expected":263.22,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Stand origin is not stated in the paper; classified natural from its reference to natural forest stands. Fitted on 8 of the 14 felled trees (the other 6 were held out for validation); the paper prints no DBH range for the fitting trees."},{"id":"pathibang-2026-stem-power","source":"pathibang-2026","name":"Sonneratia alba stem biomass, power model (D)","output":{"quantity":"stem_biomass"},"expression":"0.036 * D^2.503","published":{"expression":"0.036 * D^2.503","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Sonneratia alba","group":"mangrove"},"region":{"scope":"site","countries":["ID"],"place":"Tanah Merah Mangrove Forest, Kupang, East Nusa Tenggara","biomes":["tropical","mangrove"]},"stand":"natural","fit":{"n_trees":8,"r2":0.968,"method":"power model B = a D^b"},"evidence":[{"field":"expression","quote":"Power B = 0.036D^2.503 96.8% 0.131","locator":"Table 3, Power row"},{"field":"fit.n_trees","quote":"A total of 14 trees were felled to serve as measurement samples: 8 for model development and 6 for model validation.","locator":"Results and Discussion, p. 908"},{"field":"fit.r2","quote":"96.8%","locator":"Table 3, Power row"}],"check":[{"inputs":{"D":12},"expected":18.092,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":18},"expected":49.917,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":26},"expected":125.31,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Stand origin is not stated in the paper; classified natural from its reference to natural forest stands. Fitted on 8 of the 14 felled trees (the other 6 were held out for validation); the paper prints no DBH range for the fitting trees."},{"id":"pathibang-2026-total-exponential","source":"pathibang-2026","name":"Sonneratia alba total aboveground biomass, exponential model (D)","output":{"quantity":"agb"},"expression":"5.607 * exp(0.142 * D)","published":{"expression":"5.607 * exp(0.142 * D)","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Sonneratia alba","group":"mangrove"},"region":{"scope":"site","countries":["ID"],"place":"Tanah Merah Mangrove Forest, Kupang, East Nusa Tenggara","biomes":["tropical","mangrove"]},"stand":"natural","fit":{"n_trees":8,"r2":0.916,"method":"exponential model B = a e^(bD)"},"evidence":[{"field":"expression","quote":"Exponential B = 5.607e^0.142D 91.6% 0.233","locator":"Table 6, Exponential row"},{"field":"fit.n_trees","quote":"A total of 14 trees were felled to serve as measurement samples: 8 for model development and 6 for model validation.","locator":"Results and Discussion, p. 908"},{"field":"fit.r2","quote":"91.6%","locator":"Table 6, Exponential row"}],"check":[{"inputs":{"D":12},"expected":30.815,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":18},"expected":72.242,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":26},"expected":224.98,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Stand origin is not stated in the paper; classified natural from its reference to natural forest stands. Fitted on 8 of the 14 felled trees (the other 6 were held out for validation); the paper prints no DBH range for the fitting trees. Total is the sum of stem, branch and leaf biomass (Table 2). Selected by the authors as the best total-biomass model."},{"id":"pathibang-2026-total-multiple-power","source":"pathibang-2026","name":"Sonneratia alba total aboveground biomass, multiple power model (D, H)","output":{"quantity":"agb"},"expression":"0.033 * D^2.518 * H^0.253","published":{"expression":"0.033 * D^2.518 * H^0.253","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Sonneratia alba","group":"mangrove"},"region":{"scope":"site","countries":["ID"],"place":"Tanah Merah Mangrove Forest, Kupang, East Nusa Tenggara","biomes":["tropical","mangrove"]},"stand":"natural","fit":{"n_trees":8,"r2":0.885,"method":"multiple power model B = a D^b H^c"},"evidence":[{"field":"expression","quote":"Multiple Power B = 0.033D^(2.518) H^0.253 88.5% 0.299","locator":"Table 6, Multiple Power row"},{"field":"fit.n_trees","quote":"A total of 14 trees were felled to serve as measurement samples: 8 for model development and 6 for model validation.","locator":"Results and Discussion, p. 908"},{"field":"fit.r2","quote":"88.5%","locator":"Table 6, Multiple Power row"}],"check":[{"inputs":{"D":12,"H":7},"expected":28.165,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":18,"H":8},"expected":80.867,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":26,"H":10},"expected":215.98,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Stand origin is not stated in the paper; classified natural from its reference to natural forest stands. Fitted on 8 of the 14 felled trees (the other 6 were held out for validation); the paper prints no DBH range for the fitting trees. Total is the sum of stem, branch and leaf biomass (Table 2)."},{"id":"pathibang-2026-total-power","source":"pathibang-2026","name":"Sonneratia alba total aboveground biomass, power model (D)","output":{"quantity":"agb"},"expression":"0.049 * D^2.622","published":{"expression":"0.049 * D^2.622","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Sonneratia alba","group":"mangrove"},"region":{"scope":"site","countries":["ID"],"place":"Tanah Merah Mangrove Forest, Kupang, East Nusa Tenggara","biomes":["tropical","mangrove"]},"stand":"natural","fit":{"n_trees":8,"r2":0.88,"method":"power model B = a D^b"},"evidence":[{"field":"expression","quote":"Power B = 0.049D^2.622 88% 0.279","locator":"Table 6, Power row"},{"field":"fit.n_trees","quote":"A total of 14 trees were felled to serve as measurement samples: 8 for model development and 6 for model validation.","locator":"Results and Discussion, p. 908"},{"field":"fit.r2","quote":"88%","locator":"Table 6, Power row"}],"check":[{"inputs":{"D":12},"expected":33.099,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":18},"expected":95.834,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":26},"expected":251.34,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Stand origin is not stated in the paper; classified natural from its reference to natural forest stands. Fitted on 8 of the 14 felled trees (the other 6 were held out for validation); the paper prints no DBH range for the fitting trees. Total is the sum of stem, branch and leaf biomass (Table 2)."},{"id":"petrova-2026-birch-agb","source":"petrova-2026","name":"Betula pendula total aboveground biomass vs DBH (Eq. 4), forest-swamp, Middle Urals","output":{"quantity":"agb"},"expression":"exp(-1.7505 + 2.1177 * ln(D))","published":{"expression":"exp(-1.7505 + 2.1177 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Betula pendula","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"site","countries":["RU"],"place":"Forest-swamp system by Lake Isetskoe, Sverdlovsk Oblast, Middle Urals","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":18,"dbh_min_cm":1.1,"dbh_max_cm":17.1,"h_min_m":2.1,"h_max_m":14.5,"rse":0.357,"method":"log-log regression (OLS on natural logs); Baskerville correction included in the intercept"},"evidence":[{"field":"expression","quote":"lnPi = a0 + a1lnD (4); lnPa: a0 = –1,7505, a1 = 2,1177","locator":"Eq. (4) and Table 4, p. 126"},{"field":"fit.n_trees","quote":"18 и 12 деревьев соответственно березы и сосны","locator":"Abstract (RU)"}],"check":[{"inputs":{"D":5},"expected":5.24779,"origin":"computed","note":"hand-computed from the published form (Table 4 coefficients)"},{"inputs":{"D":10},"expected":22.7755,"origin":"computed","note":"hand-computed from the published form (Table 4 coefficients)"},{"inputs":{"D":15},"expected":53.7497,"origin":"computed","note":"hand-computed from the published form (Table 4 coefficients)"}],"verification":"original_read","checked_at":"2026-11-01","notes":"The Baskerville log-correction is already in the printed intercept a0 (Table 4 footnote), so no separate factor. adjusted R2 reported: 0.944 (not used as r2). Pa excludes dead branches (reported separately as Pmort); the contract cannot express that exclusion. Only the 4 main fractions (stem in bark, branches, foliage, total) are added; bark and dead-branch fits omitted. 18 birch and 12 pine trees from 4 plots in one forest-swamp system."},{"id":"petrova-2026-birch-br","source":"petrova-2026","name":"Betula pendula branches biomass vs DBH (Eq. 4), forest-swamp, Middle Urals","output":{"quantity":"branch_biomass"},"expression":"exp(-4.348 + 2.3432 * ln(D))","published":{"expression":"exp(-4.348 + 2.3432 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Betula pendula","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"site","countries":["RU"],"place":"Forest-swamp system by Lake Isetskoe, Sverdlovsk Oblast, Middle Urals","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":18,"dbh_min_cm":1.1,"dbh_max_cm":17.1,"h_min_m":2.1,"h_max_m":14.5,"rse":0.554,"method":"log-log regression (OLS on natural logs); Baskerville correction included in the intercept"},"evidence":[{"field":"expression","quote":"lnPi = a0 + a1lnD (4); lnPbr: a0 = –4,348, a1 = 2,3432","locator":"Eq. (4) and Table 4, p. 126"},{"field":"fit.n_trees","quote":"18 и 12 деревьев соответственно березы и сосны","locator":"Abstract (RU)"}],"check":[{"inputs":{"D":5},"expected":0.561713,"origin":"computed","note":"hand-computed from the published form (Table 4 coefficients)"},{"inputs":{"D":10},"expected":2.85028,"origin":"computed","note":"hand-computed from the published form (Table 4 coefficients)"},{"inputs":{"D":15},"expected":7.37063,"origin":"computed","note":"hand-computed from the published form (Table 4 coefficients)"}],"verification":"original_read","checked_at":"2026-11-01","notes":"The Baskerville log-correction is already in the printed intercept a0 (Table 4 footnote), so no separate factor. adjusted R2 reported: 0.896 (not used as r2). Pa excludes dead branches (reported separately as Pmort); the contract cannot express that exclusion. Only the 4 main fractions (stem in bark, branches, foliage, total) are added; bark and dead-branch fits omitted. 18 birch and 12 pine trees from 4 plots in one forest-swamp system."},{"id":"petrova-2026-birch-f","source":"petrova-2026","name":"Betula pendula foliage biomass vs DBH (Eq. 4), forest-swamp, Middle Urals","output":{"quantity":"foliage_biomass"},"expression":"exp(-3.6302 + 1.7688 * ln(D))","published":{"expression":"exp(-3.6302 + 1.7688 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Betula pendula","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"site","countries":["RU"],"place":"Forest-swamp system by Lake Isetskoe, Sverdlovsk Oblast, Middle Urals","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":18,"dbh_min_cm":1.1,"dbh_max_cm":17.1,"h_min_m":2.1,"h_max_m":14.5,"rse":0.514,"method":"log-log regression (OLS on natural logs); Baskerville correction included in the intercept"},"evidence":[{"field":"expression","quote":"lnPi = a0 + a1lnD (4); lnPf: a0 = –3,6302, a1 = 1,7688","locator":"Eq. (4) and Table 4, p. 126"},{"field":"fit.n_trees","quote":"18 и 12 деревьев соответственно березы и сосны","locator":"Abstract (RU)"}],"check":[{"inputs":{"D":5},"expected":0.456838,"origin":"computed","note":"hand-computed from the published form (Table 4 coefficients)"},{"inputs":{"D":10},"expected":1.55677,"origin":"computed","note":"hand-computed from the published form (Table 4 coefficients)"},{"inputs":{"D":15},"expected":3.18929,"origin":"computed","note":"hand-computed from the published form (Table 4 coefficients)"}],"verification":"original_read","checked_at":"2026-11-01","notes":"The Baskerville log-correction is already in the printed intercept a0 (Table 4 footnote), so no separate factor. adjusted R2 reported: 0.85 (not used as r2). Pa excludes dead branches (reported separately as Pmort); the contract cannot express that exclusion. Only the 4 main fractions (stem in bark, branches, foliage, total) are added; bark and dead-branch fits omitted. 18 birch and 12 pine trees from 4 plots in one forest-swamp system."},{"id":"petrova-2026-birch-st","source":"petrova-2026","name":"Betula pendula stem in bark biomass vs DBH (Eq. 4), forest-swamp, Middle Urals","output":{"quantity":"stem_biomass"},"expression":"exp(-1.9888 + 2.1307 * ln(D))","published":{"expression":"exp(-1.9888 + 2.1307 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Betula pendula","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"site","countries":["RU"],"place":"Forest-swamp system by Lake Isetskoe, Sverdlovsk Oblast, Middle Urals","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":18,"dbh_min_cm":1.1,"dbh_max_cm":17.1,"h_min_m":2.1,"h_max_m":14.5,"rse":0.349,"method":"log-log regression (OLS on natural logs); Baskerville correction included in the intercept"},"evidence":[{"field":"expression","quote":"lnPi = a0 + a1lnD (4); lnPst: a0 = –1,9888, a1 = 2,1307","locator":"Eq. (4) and Table 4, p. 126"},{"field":"fit.n_trees","quote":"18 и 12 деревьев соответственно березы и сосны","locator":"Abstract (RU)"}],"check":[{"inputs":{"D":5},"expected":4.22251,"origin":"computed","note":"hand-computed from the published form (Table 4 coefficients)"},{"inputs":{"D":10},"expected":18.4916,"origin":"computed","note":"hand-computed from the published form (Table 4 coefficients)"},{"inputs":{"D":15},"expected":43.8705,"origin":"computed","note":"hand-computed from the published form (Table 4 coefficients)"}],"verification":"original_read","checked_at":"2026-11-01","notes":"The Baskerville log-correction is already in the printed intercept a0 (Table 4 footnote), so no separate factor. adjusted R2 reported: 0.947 (not used as r2). Pa excludes dead branches (reported separately as Pmort); the contract cannot express that exclusion. Only the 4 main fractions (stem in bark, branches, foliage, total) are added; bark and dead-branch fits omitted. 18 birch and 12 pine trees from 4 plots in one forest-swamp system."},{"id":"petrova-2026-pine-agb","source":"petrova-2026","name":"Pinus sylvestris total aboveground biomass vs DBH (Eq. 4), forest-swamp, Middle Urals","output":{"quantity":"agb"},"expression":"exp(-2.1517 + 2.2508 * ln(D))","published":{"expression":"exp(-2.1517 + 2.2508 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus sylvestris","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["RU"],"place":"Forest-swamp system by Lake Isetskoe, Sverdlovsk Oblast, Middle Urals","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":12,"dbh_min_cm":2.4,"dbh_max_cm":21.3,"h_min_m":3.67,"h_max_m":12.8,"rse":0.238,"method":"log-log regression (OLS on natural logs); Baskerville correction included in the intercept"},"evidence":[{"field":"expression","quote":"lnPi = a0 + a1lnD (4); lnPa: a0 = –2,1517, a1 = 2,2508","locator":"Eq. (4) and Table 4, p. 126"},{"field":"fit.n_trees","quote":"18 и 12 деревьев соответственно березы и сосны","locator":"Abstract (RU)"}],"check":[{"inputs":{"D":5},"expected":4.35282,"origin":"computed","note":"hand-computed from the published form (Table 4 coefficients)"},{"inputs":{"D":10},"expected":20.7171,"origin":"computed","note":"hand-computed from the published form (Table 4 coefficients)"},{"inputs":{"D":15},"expected":51.603,"origin":"computed","note":"hand-computed from the published form (Table 4 coefficients)"}],"verification":"original_read","checked_at":"2026-11-01","notes":"The Baskerville log-correction is already in the printed intercept a0 (Table 4 footnote), so no separate factor. adjusted R2 reported: 0.974 (not used as r2). Pa excludes dead branches (reported separately as Pmort); the contract cannot express that exclusion. Only the 4 main fractions (stem in bark, branches, foliage, total) are added; bark and dead-branch fits omitted. 18 birch and 12 pine trees from 4 plots in one forest-swamp system. Sampled pines are P. sylvestris f. uliginosa and f. litwinowii (Table 1, p. 121)."},{"id":"petrova-2026-pine-br","source":"petrova-2026","name":"Pinus sylvestris branches biomass vs DBH (Eq. 4), forest-swamp, Middle Urals","output":{"quantity":"branch_biomass"},"expression":"exp(-4.8556 + 2.5829 * ln(D))","published":{"expression":"exp(-4.8556 + 2.5829 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus sylvestris","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["RU"],"place":"Forest-swamp system by Lake Isetskoe, Sverdlovsk Oblast, Middle Urals","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":12,"dbh_min_cm":2.4,"dbh_max_cm":21.3,"h_min_m":3.67,"h_max_m":12.8,"rse":0.53,"method":"log-log regression (OLS on natural logs); Baskerville correction included in the intercept"},"evidence":[{"field":"expression","quote":"lnPi = a0 + a1lnD (4); lnPbr: a0 = –4,8556, a1 = 2,5829","locator":"Eq. (4) and Table 4, p. 126"},{"field":"fit.n_trees","quote":"18 и 12 деревьев соответственно березы и сосны","locator":"Abstract (RU)"}],"check":[{"inputs":{"D":5},"expected":0.49729,"origin":"computed","note":"hand-computed from the published form (Table 4 coefficients)"},{"inputs":{"D":10},"expected":2.97947,"origin":"computed","note":"hand-computed from the published form (Table 4 coefficients)"},{"inputs":{"D":15},"expected":8.49114,"origin":"computed","note":"hand-computed from the published form (Table 4 coefficients)"}],"verification":"original_read","checked_at":"2026-11-01","notes":"The Baskerville log-correction is already in the printed intercept a0 (Table 4 footnote), so no separate factor. adjusted R2 reported: 0.908 (not used as r2). Pa excludes dead branches (reported separately as Pmort); the contract cannot express that exclusion. Only the 4 main fractions (stem in bark, branches, foliage, total) are added; bark and dead-branch fits omitted. 18 birch and 12 pine trees from 4 plots in one forest-swamp system. Sampled pines are P. sylvestris f. uliginosa and f. litwinowii (Table 1, p. 121)."},{"id":"petrova-2026-pine-f","source":"petrova-2026","name":"Pinus sylvestris foliage biomass vs DBH (Eq. 4), forest-swamp, Middle Urals","output":{"quantity":"foliage_biomass"},"expression":"exp(-3.0228 + 1.6412 * ln(D))","published":{"expression":"exp(-3.0228 + 1.6412 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus sylvestris","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["RU"],"place":"Forest-swamp system by Lake Isetskoe, Sverdlovsk Oblast, Middle Urals","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":12,"dbh_min_cm":2.4,"dbh_max_cm":21.3,"h_min_m":3.67,"h_max_m":12.8,"rse":0.503,"method":"log-log regression (OLS on natural logs); Baskerville correction included in the intercept"},"evidence":[{"field":"expression","quote":"lnPi = a0 + a1lnD (4); lnPf: a0 = –3,0228, a1 = 1,6412","locator":"Eq. (4) and Table 4, p. 126"},{"field":"fit.n_trees","quote":"18 и 12 деревьев соответственно березы и сосны","locator":"Abstract (RU)"}],"check":[{"inputs":{"D":5},"expected":0.682911,"origin":"computed","note":"hand-computed from the published form (Table 4 coefficients)"},{"inputs":{"D":10},"expected":2.13017,"origin":"computed","note":"hand-computed from the published form (Table 4 coefficients)"},{"inputs":{"D":15},"expected":4.14396,"origin":"computed","note":"hand-computed from the published form (Table 4 coefficients)"}],"verification":"original_read","checked_at":"2026-11-01","notes":"The Baskerville log-correction is already in the printed intercept a0 (Table 4 footnote), so no separate factor. adjusted R2 reported: 0.813 (not used as r2). Pa excludes dead branches (reported separately as Pmort); the contract cannot express that exclusion. Only the 4 main fractions (stem in bark, branches, foliage, total) are added; bark and dead-branch fits omitted. 18 birch and 12 pine trees from 4 plots in one forest-swamp system. Sampled pines are P. sylvestris f. uliginosa and f. litwinowii (Table 1, p. 121)."},{"id":"petrova-2026-pine-st","source":"petrova-2026","name":"Pinus sylvestris stem in bark biomass vs DBH (Eq. 4), forest-swamp, Middle Urals","output":{"quantity":"stem_biomass"},"expression":"exp(-2.4721 + 2.261 * ln(D))","published":{"expression":"exp(-2.4721 + 2.261 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus sylvestris","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["RU"],"place":"Forest-swamp system by Lake Isetskoe, Sverdlovsk Oblast, Middle Urals","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":12,"dbh_min_cm":2.4,"dbh_max_cm":21.3,"h_min_m":3.67,"h_max_m":12.8,"rse":0.229,"method":"log-log regression (OLS on natural logs); Baskerville correction included in the intercept"},"evidence":[{"field":"expression","quote":"lnPi = a0 + a1lnD (4); lnPst: a0 = –2,4721, a1 = 2,261","locator":"Eq. (4) and Table 4, p. 126"},{"field":"fit.n_trees","quote":"18 и 12 деревьев соответственно березы и сосны","locator":"Abstract (RU)"}],"check":[{"inputs":{"D":5},"expected":3.21182,"origin":"computed","note":"hand-computed from the published form (Table 4 coefficients)"},{"inputs":{"D":10},"expected":15.395,"origin":"computed","note":"hand-computed from the published form (Table 4 coefficients)"},{"inputs":{"D":15},"expected":38.5055,"origin":"computed","note":"hand-computed from the published form (Table 4 coefficients)"}],"verification":"original_read","checked_at":"2026-11-01","notes":"The Baskerville log-correction is already in the printed intercept a0 (Table 4 footnote), so no separate factor. adjusted R2 reported: 0.976 (not used as r2). Pa excludes dead branches (reported separately as Pmort); the contract cannot express that exclusion. Only the 4 main fractions (stem in bark, branches, foliage, total) are added; bark and dead-branch fits omitted. 18 birch and 12 pine trees from 4 plots in one forest-swamp system. Sampled pines are P. sylvestris f. uliginosa and f. litwinowii (Table 1, p. 121)."},{"id":"pienaar-2025-branch-eq8","source":"pienaar-2025","name":"Radiata pine branch from DBH (Eq. 8)","output":{"quantity":"branch_biomass"},"expression":"1.093 * exp(-3.432 + 2.09*ln(D))","published":{"expression":"1.093 * exp(-3.432 + 2.09*ln(DBH))","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus radiata","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["ZA"],"place":"Boland region, Western Cape, South Africa","biomes":["temperate"]},"stand":"plantation","fit":{"dbh_min_cm":10.4,"dbh_max_cm":38.9,"r2":0.7,"cf":1.093,"method":"ln-ln linear regression (R lm), Baskerville correction factor"},"evidence":[{"field":"expression","quote":"Branch, Eq. 8, Ln(DBH): β0 = -3.432, β1 = 2.09, CF = 1.093","locator":"Table 3"},{"field":"expression","quote":"ln (Y) = β0 + β1ln(X1) + ⋯ + βjln(Χj) needs to be multiplied by the CF to transform the values to the arithmetic scale","locator":"Table 3 footnote"},{"field":"fit.r2","quote":"R2 = 0.7","locator":"Table 3"},{"field":"fit.dbh_min_cm","quote":"the sample trees in this study range from 10.4 cm to 38.9 cm","locator":"Discussion"}],"check":[{"inputs":{"D":15,"H":14},"expected":10.1427,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":30,"H":22},"expected":43.1822,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Natural-log model; correction factor CF = exp(RSE²/2) (Baskerville) as printed in Table 3 is applied in the expression. H is total tree height (m). Stand-level site: 4 plantation sites aged 13 to 20 years. Needle and branch tree-level totals come from branch-level upscaling; two outliers were removed, leaving 18 trees, so n is not entered here. Biomass is oven-dry mass. Eq. 10 is the authors' best model for stemwood and total."},{"id":"pienaar-2025-foliage-eq8","source":"pienaar-2025","name":"Radiata pine needle from DBH (Eq. 8)","output":{"quantity":"foliage_biomass"},"expression":"1.057 * exp(-2.481 + 1.624*ln(D))","published":{"expression":"1.057 * exp(-2.481 + 1.624*ln(DBH))","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus radiata","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["ZA"],"place":"Boland region, Western Cape, South Africa","biomes":["temperate"]},"stand":"plantation","fit":{"dbh_min_cm":10.4,"dbh_max_cm":38.9,"r2":0.69,"cf":1.057,"method":"ln-ln linear regression (R lm), Baskerville correction factor"},"evidence":[{"field":"expression","quote":"Needle, Eq. 8, Ln(DBH): β0 = -2.481, β1 = 1.624, CF = 1.057","locator":"Table 3"},{"field":"expression","quote":"ln (Y) = β0 + β1ln(X1) + ⋯ + βjln(Χj) needs to be multiplied by the CF to transform the values to the arithmetic scale","locator":"Table 3 footnote"},{"field":"fit.r2","quote":"R2 = 0.69","locator":"Table 3"},{"field":"fit.dbh_min_cm","quote":"the sample trees in this study range from 10.4 cm to 38.9 cm","locator":"Discussion"}],"check":[{"inputs":{"D":15,"H":14},"expected":7.1872,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":30,"H":22},"expected":22.1531,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Natural-log model; correction factor CF = exp(RSE²/2) (Baskerville) as printed in Table 3 is applied in the expression. H is total tree height (m). Stand-level site: 4 plantation sites aged 13 to 20 years. Needle and branch tree-level totals come from branch-level upscaling; two outliers were removed, leaving 18 trees, so n is not entered here. Biomass is oven-dry mass. Eq. 10 is the authors' best model for stemwood and total."},{"id":"pienaar-2025-stem-eq10","source":"pienaar-2025","name":"Radiata pine stemwood from DBH²H (Eq. 10)","output":{"quantity":"stem_biomass"},"expression":"1.029 * exp(-3.607 + 0.911*ln(D^2*H))","published":{"expression":"1.029 * exp(-3.607 + 0.911*ln(DBH^2*H))","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus radiata","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["ZA"],"place":"Boland region, Western Cape, South Africa","biomes":["temperate"]},"stand":"plantation","fit":{"dbh_min_cm":10.4,"dbh_max_cm":38.9,"h_min_m":10.88,"h_max_m":25.52,"r2":0.91,"cf":1.029,"method":"ln-ln linear regression (R lm), Baskerville correction factor"},"evidence":[{"field":"expression","quote":"Stemwood, Eq. 10, Ln(DBH2H): β0 = -3.607, β1 = 0.911, CF = 1.029","locator":"Table 3"},{"field":"expression","quote":"ln (Y) = β0 + β1ln(X1) + ⋯ + βjln(Χj) needs to be multiplied by the CF to transform the values to the arithmetic scale","locator":"Table 3 footnote"},{"field":"fit.r2","quote":"R2 = 0.91","locator":"Table 3"},{"field":"fit.dbh_min_cm","quote":"the sample trees in this study range from 10.4 cm to 38.9 cm","locator":"Discussion"},{"field":"fit.h_min_m","quote":"DBH (cm) 20 38.9 10.4 24.5 8.3; H (m) 20 25.52 10.88 16.78 3.89 (n, Max, Min, Mean, SD)","locator":"Table 1, Upscaling II"}],"check":[{"inputs":{"D":15,"H":14},"expected":42.9414,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":30,"H":22},"expected":229.1802,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Natural-log model; correction factor CF = exp(RSE²/2) (Baskerville) as printed in Table 3 is applied in the expression. H is total tree height (m). Stand-level site: 4 plantation sites aged 13 to 20 years. Biomass is oven-dry mass. Eq. 10 is the authors' best model for stemwood and total. Stemwood (SW) is stem wood without bark; bark is a separate component in Table 3 and is not included here. Table 1 lists 19 stemwood (SW) values against 20 felled trees, so n for the stemwood models is not stated unambiguously and is left out."},{"id":"pienaar-2025-stem-eq8","source":"pienaar-2025","name":"Radiata pine stemwood from DBH (Eq. 8)","output":{"quantity":"stem_biomass"},"expression":"1.033 * exp(-2.557 + 2.3*ln(D))","published":{"expression":"1.033 * exp(-2.557 + 2.3*ln(DBH))","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus radiata","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["ZA"],"place":"Boland region, Western Cape, South Africa","biomes":["temperate"]},"stand":"plantation","fit":{"dbh_min_cm":10.4,"dbh_max_cm":38.9,"h_min_m":10.88,"h_max_m":25.52,"r2":0.89,"cf":1.033,"method":"ln-ln linear regression (R lm), Baskerville correction factor"},"evidence":[{"field":"expression","quote":"Stemwood, Eq. 8, Ln(DBH): β0 = -2.557, β1 = 2.3, CF = 1.033","locator":"Table 3"},{"field":"expression","quote":"ln (Y) = β0 + β1ln(X1) + ⋯ + βjln(Χj) needs to be multiplied by the CF to transform the values to the arithmetic scale","locator":"Table 3 footnote"},{"field":"fit.r2","quote":"R2 = 0.89","locator":"Table 3"},{"field":"fit.dbh_min_cm","quote":"the sample trees in this study range from 10.4 cm to 38.9 cm","locator":"Discussion"},{"field":"fit.h_min_m","quote":"DBH (cm) 20 38.9 10.4 24.5 8.3; H (m) 20 25.52 10.88 16.78 3.89 (n, Max, Min, Mean, SD)","locator":"Table 1, Upscaling II"}],"check":[{"inputs":{"D":15,"H":14},"expected":40.6087,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":30,"H":22},"expected":199.9808,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Natural-log model; correction factor CF = exp(RSE²/2) (Baskerville) as printed in Table 3 is applied in the expression. H is total tree height (m). Stand-level site: 4 plantation sites aged 13 to 20 years. Biomass is oven-dry mass. Eq. 10 is the authors' best model for stemwood and total. Stemwood (SW) is stem wood without bark; bark is a separate component in Table 3 and is not included here. Table 1 lists 19 stemwood (SW) values against 20 felled trees, so n for the stemwood models is not stated unambiguously and is left out."},{"id":"pienaar-2025-total-eq10","source":"pienaar-2025","name":"Radiata pine total aboveground from DBH²H (Eq. 10)","output":{"quantity":"agb"},"expression":"1.03 * exp(-2.31 + 0.817*ln(D^2*H))","published":{"expression":"1.03 * exp(-2.31 + 0.817*ln(DBH^2*H))","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus radiata","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["ZA"],"place":"Boland region, Western Cape, South Africa","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":20,"dbh_min_cm":10.4,"dbh_max_cm":38.9,"h_min_m":10.88,"h_max_m":25.52,"r2":0.89,"cf":1.03,"method":"ln-ln linear regression (R lm), Baskerville correction factor"},"evidence":[{"field":"expression","quote":"Total, Eq. 10, Ln(DBH2H): β0 = -2.31, β1 = 0.817, CF = 1.03","locator":"Table 3"},{"field":"expression","quote":"ln (Y) = β0 + β1ln(X1) + ⋯ + βjln(Χj) needs to be multiplied by the CF to transform the values to the arithmetic scale","locator":"Table 3 footnote"},{"field":"fit.r2","quote":"R2 = 0.89","locator":"Table 3"},{"field":"fit.n_trees","quote":"A total of 20 Radiata pine trees were felled for biomass across 4 sites in the Boland region","locator":"Section 2 (Materials and methods)"},{"field":"fit.dbh_min_cm","quote":"the sample trees in this study range from 10.4 cm to 38.9 cm","locator":"Discussion"},{"field":"fit.h_min_m","quote":"DBH (cm) 20 38.9 10.4 24.5 8.3; H (m) 20 25.52 10.88 16.78 3.89 (n, Max, Min, Mean, SD)","locator":"Table 1, Upscaling II"}],"check":[{"inputs":{"D":15,"H":14},"expected":73.7457,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":30,"H":22},"expected":331.1254,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Natural-log model; correction factor CF = exp(RSE²/2) (Baskerville) as printed in Table 3 is applied in the expression. H is total tree height (m). Stand-level site: 4 plantation sites aged 13 to 20 years. Sum of the component models underestimates this total for large trees (paper, Biomass estimation section). Biomass is oven-dry mass. Eq. 10 is the authors' best model for stemwood and total."},{"id":"pienaar-2025-total-eq8","source":"pienaar-2025","name":"Radiata pine total aboveground from DBH (Eq. 8)","output":{"quantity":"agb"},"expression":"1.032 * exp(-1.385 + 2.067*ln(D))","published":{"expression":"1.032 * exp(-1.385 + 2.067*ln(DBH))","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus radiata","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["ZA"],"place":"Boland region, Western Cape, South Africa","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":20,"dbh_min_cm":10.4,"dbh_max_cm":38.9,"h_min_m":10.88,"h_max_m":25.52,"r2":0.87,"cf":1.032,"method":"ln-ln linear regression (R lm), Baskerville correction factor"},"evidence":[{"field":"expression","quote":"Total, Eq. 8, Ln(DBH): β0 = -1.385, β1 = 2.067, CF = 1.032","locator":"Table 3"},{"field":"expression","quote":"ln (Y) = β0 + β1ln(X1) + ⋯ + βjln(Χj) needs to be multiplied by the CF to transform the values to the arithmetic scale","locator":"Table 3 footnote"},{"field":"fit.r2","quote":"R2 = 0.87","locator":"Table 3"},{"field":"fit.n_trees","quote":"A total of 20 Radiata pine trees were felled for biomass across 4 sites in the Boland region","locator":"Section 2 (Materials and methods)"},{"field":"fit.dbh_min_cm","quote":"the sample trees in this study range from 10.4 cm to 38.9 cm","locator":"Discussion"},{"field":"fit.h_min_m","quote":"DBH (cm) 20 38.9 10.4 24.5 8.3; H (m) 20 25.52 10.88 16.78 3.89 (n, Max, Min, Mean, SD)","locator":"Table 1, Upscaling II"}],"check":[{"inputs":{"D":15,"H":14},"expected":69.6887,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":30,"H":22},"expected":292.0058,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Natural-log model; correction factor CF = exp(RSE²/2) (Baskerville) as printed in Table 3 is applied in the expression. H is total tree height (m). Stand-level site: 4 plantation sites aged 13 to 20 years. Sum of the component models underestimates this total for large trees (paper, Biomass estimation section). Biomass is oven-dry mass. Eq. 10 is the authors' best model for stemwood and total."},{"id":"pienaar-2025-total-eq9","source":"pienaar-2025","name":"Radiata pine total aboveground from DBH, H (Eq. 9)","output":{"quantity":"agb"},"expression":"1.031 * exp(-2.09 + 1.753*ln(D) + 0.604*ln(H))","published":{"expression":"1.031 * exp(-2.09 + 1.753*ln(DBH) + 0.604*ln(H))","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus radiata","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["ZA"],"place":"Boland region, Western Cape, South Africa","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":20,"dbh_min_cm":10.4,"dbh_max_cm":38.9,"h_min_m":10.88,"h_max_m":25.52,"r2":0.88,"cf":1.031,"method":"ln-ln linear regression (R lm), Baskerville correction factor"},"evidence":[{"field":"expression","quote":"Total, Eq. 9, Ln(DBH), Ln(H): β0 = -2.09, β1 = 1.753, β2 = 0.604, CF = 1.031","locator":"Table 3"},{"field":"expression","quote":"ln (Y) = β0 + β1ln(X1) + ⋯ + βjln(Χj) needs to be multiplied by the CF to transform the values to the arithmetic scale","locator":"Table 3 footnote"},{"field":"fit.r2","quote":"R2 = 0.88","locator":"Table 3"},{"field":"fit.n_trees","quote":"A total of 20 Radiata pine trees were felled for biomass across 4 sites in the Boland region","locator":"Section 2 (Materials and methods)"},{"field":"fit.dbh_min_cm","quote":"the sample trees in this study range from 10.4 cm to 38.9 cm","locator":"Discussion"},{"field":"fit.h_min_m","quote":"DBH (cm) 20 38.9 10.4 24.5 8.3; H (m) 20 25.52 10.88 16.78 3.89 (n, Max, Min, Mean, SD)","locator":"Table 1, Upscaling II"}],"check":[{"inputs":{"D":15,"H":14},"expected":72.3657,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":30,"H":22},"expected":320.4794,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Natural-log model; correction factor CF = exp(RSE²/2) (Baskerville) as printed in Table 3 is applied in the expression. H is total tree height (m). Stand-level site: 4 plantation sites aged 13 to 20 years. Sum of the component models underestimates this total for large trees (paper, Biomass estimation section). Biomass is oven-dry mass. Eq. 10 is the authors' best model for stemwood and total."},{"id":"poudel-2016-df-agb","source":"poudel-2016","name":"Douglas-fir total aboveground biomass, simple SUR (D only)","output":{"quantity":"agb"},"expression":"exp(-0.349 + 1.925 * ln(D)) + exp(-3.247 + 1.919 * ln(D)) + exp(-2.604 + 1.942 * ln(D)) + exp(-3.242 + 1.758 * ln(D))","published":{"expression":"exp(-0.349 + 1.925 * ln(D)) + exp(-3.247 + 1.919 * ln(D)) + exp(-2.604 + 1.942 * ln(D)) + exp(-3.242 + 1.758 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pseudotsuga menziesii","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["US"],"place":"Oregon, USA (several forests)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":22,"dbh_min_cm":19.3,"dbh_max_cm":114,"method":"seemingly unrelated regression (simple SUR), component equations constrained to sum to total, fitted in original scale"},"evidence":[{"field":"expression","quote":"Total = Σ exp(aij + aij*X1 ...) over bole, bark, branch and foliage; simple SUR uses X1 = ln(DBH) only","locator":"Eq. 6 and Table 3, Simple SUR, Douglas-fir"},{"field":"fit.n_trees","quote":"22 Douglas-fir (Pseudotsuga menziesii (Mirbel) Franco) and 33 lodgepole pine (Pinus contorta) trees","locator":"Materials and Methods, Data and Study Area"}],"check":[{"inputs":{"D":20},"expected":270.0274,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":50},"expected":1571.2054,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":100},"expected":5956.2268,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Read from the author's accepted manuscript (draft, manuscript ID cjfr-2015-0256.R1), not the typeset article; values may differ from the final print. Total is the sum of the four component equations (bole, bark, branch, foliage) from the constrained SUR system, so it includes foliage and bark. Fitted in original scale, no correction factor. Extended SUR models (height, crown length) not included."},{"id":"poudel-2016-df-branch","source":"poudel-2016","name":"Douglas-fir branch biomass, simple SUR (D only)","output":{"quantity":"branch_biomass"},"expression":"exp(-2.604 + 1.942 * ln(D))","published":{"expression":"exp(-2.604 + 1.942 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pseudotsuga menziesii","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["US"],"place":"Oregon, USA (several forests)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":22,"dbh_min_cm":19.3,"dbh_max_cm":114,"method":"seemingly unrelated regression (simple SUR), component equations constrained to sum to total, fitted in original scale"},"evidence":[{"field":"expression","quote":"Branch = exp(a31 + a32*X1); a31 = -2.604, a32 = 1.942","locator":"Eqs. 2-5 (X1 = ln DBH) and Table 3, Simple SUR, Douglas-fir"},{"field":"fit.n_trees","quote":"22 Douglas-fir (Pseudotsuga menziesii (Mirbel) Franco) and 33 lodgepole pine (Pinus contorta) trees","locator":"Materials and Methods, Data and Study Area"}],"check":[{"inputs":{"D":20},"expected":24.8712,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":50},"expected":147.3998,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":100},"expected":566.366,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Read from the author's accepted manuscript (draft, manuscript ID cjfr-2015-0256.R1), not the typeset article; values may differ from the final print. Fitted in original scale (nonlinear SUR), so no log back-transform correction. DBH in cm, biomass in kg (Eq. 2-5 text). Extended SUR models using height and crown length are not included (crown length is not a canonical variable)."},{"id":"poudel-2016-df-foliage","source":"poudel-2016","name":"Douglas-fir foliage biomass, simple SUR (D only)","output":{"quantity":"foliage_biomass"},"expression":"exp(-3.242 + 1.758 * ln(D))","published":{"expression":"exp(-3.242 + 1.758 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pseudotsuga menziesii","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["US"],"place":"Oregon, USA (several forests)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":22,"dbh_min_cm":19.3,"dbh_max_cm":114,"method":"seemingly unrelated regression (simple SUR), component equations constrained to sum to total, fitted in original scale"},"evidence":[{"field":"expression","quote":"Foliage = exp(a41 + a42*X1); a41 = -3.242, a42 = 1.758","locator":"Eqs. 2-5 (X1 = ln DBH) and Table 3, Simple SUR, Douglas-fir"},{"field":"fit.n_trees","quote":"22 Douglas-fir (Pseudotsuga menziesii (Mirbel) Franco) and 33 lodgepole pine (Pinus contorta) trees","locator":"Materials and Methods, Data and Study Area"}],"check":[{"inputs":{"D":20},"expected":7.5723,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":50},"expected":37.9146,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":100},"expected":128.2382,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Read from the author's accepted manuscript (draft, manuscript ID cjfr-2015-0256.R1), not the typeset article; values may differ from the final print. Fitted in original scale (nonlinear SUR), so no log back-transform correction. DBH in cm, biomass in kg (Eq. 2-5 text). Extended SUR models using height and crown length are not included (crown length is not a canonical variable)."},{"id":"poudel-2016-df-stem","source":"poudel-2016","name":"Douglas-fir bole biomass, simple SUR (D only)","output":{"quantity":"stem_biomass"},"expression":"exp(-0.349 + 1.925 * ln(D))","published":{"expression":"exp(-0.349 + 1.925 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pseudotsuga menziesii","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["US"],"place":"Oregon, USA (several forests)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":22,"dbh_min_cm":19.3,"dbh_max_cm":114,"method":"seemingly unrelated regression (simple SUR), component equations constrained to sum to total, fitted in original scale"},"evidence":[{"field":"expression","quote":"Bole = exp(a11 + a12*X1); a11 = -0.349, a12 = 1.925","locator":"Eqs. 2-5 (X1 = ln DBH) and Table 3, Simple SUR, Douglas-fir"},{"field":"fit.n_trees","quote":"22 Douglas-fir (Pseudotsuga menziesii (Mirbel) Franco) and 33 lodgepole pine (Pinus contorta) trees","locator":"Materials and Methods, Data and Study Area"}],"check":[{"inputs":{"D":20},"expected":225.3793,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":50},"expected":1315.0688,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":100},"expected":4993.8009,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Read from the author's accepted manuscript (draft, manuscript ID cjfr-2015-0256.R1), not the typeset article; values may differ from the final print. Fitted in original scale (nonlinear SUR), so no log back-transform correction. DBH in cm, biomass in kg (Eq. 2-5 text). Bole is stem wood; bark is reported as a separate component (not provided here as there is no matching output quantity). Extended SUR models using height and crown length are not included (crown length is not a canonical variable)."},{"id":"poudel-2016-lp-agb","source":"poudel-2016","name":"Lodgepole pine total aboveground biomass, simple SUR (D only)","output":{"quantity":"agb"},"expression":"exp(-2.374 + 2.373 * ln(D)) + exp(-4.401 + 2.105 * ln(D)) + exp(-3.384 + 2.202 * ln(D)) + exp(-2.472 + 1.637 * ln(D))","published":{"expression":"exp(-2.374 + 2.373 * ln(D)) + exp(-4.401 + 2.105 * ln(D)) + exp(-3.384 + 2.202 * ln(D)) + exp(-2.472 + 1.637 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus contorta","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["US"],"place":"Oregon, USA (several forests)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":33,"dbh_min_cm":13.5,"dbh_max_cm":42.9,"method":"seemingly unrelated regression (simple SUR), component equations constrained to sum to total, fitted in original scale"},"evidence":[{"field":"expression","quote":"Total = Σ exp(aij + aij*X1 ...) over bole, bark, branch and foliage; simple SUR uses X1 = ln(DBH) only","locator":"Eq. 6 and Table 3, Simple SUR, Lodgepole pine"},{"field":"fit.n_trees","quote":"22 Douglas-fir (Pseudotsuga menziesii (Mirbel) Franco) and 33 lodgepole pine (Pinus contorta) trees","locator":"Materials and Methods, Data and Study Area"}],"check":[{"inputs":{"D":15},"expected":81.4839,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25},"expected":261.0852,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":40},"expected":768.3737,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Read from the author's accepted manuscript (draft, manuscript ID cjfr-2015-0256.R1), not the typeset article; values may differ from the final print. Total is the sum of the four component equations (bole, bark, branch, foliage) from the constrained SUR system, so it includes foliage and bark. Fitted in original scale, no correction factor. Extended SUR models (height, crown length) not included."},{"id":"poudel-2016-lp-branch","source":"poudel-2016","name":"Lodgepole pine branch biomass, simple SUR (D only)","output":{"quantity":"branch_biomass"},"expression":"exp(-3.384 + 2.202 * ln(D))","published":{"expression":"exp(-3.384 + 2.202 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus contorta","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["US"],"place":"Oregon, USA (several forests)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":33,"dbh_min_cm":13.5,"dbh_max_cm":42.9,"method":"seemingly unrelated regression (simple SUR), component equations constrained to sum to total, fitted in original scale"},"evidence":[{"field":"expression","quote":"Branch = exp(a31 + a32*X1); a31 = -3.384, a32 = 2.202","locator":"Eqs. 2-5 (X1 = ln DBH) and Table 3, Simple SUR, Lodgepole pine"},{"field":"fit.n_trees","quote":"22 Douglas-fir (Pseudotsuga menziesii (Mirbel) Franco) and 33 lodgepole pine (Pinus contorta) trees","locator":"Materials and Methods, Data and Study Area"}],"check":[{"inputs":{"D":15},"expected":13.1856,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25},"expected":40.608,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":40},"expected":114.3098,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Read from the author's accepted manuscript (draft, manuscript ID cjfr-2015-0256.R1), not the typeset article; values may differ from the final print. Fitted in original scale (nonlinear SUR), so no log back-transform correction. DBH in cm, biomass in kg (Eq. 2-5 text). Extended SUR models using height and crown length are not included (crown length is not a canonical variable)."},{"id":"poudel-2016-lp-foliage","source":"poudel-2016","name":"Lodgepole pine foliage biomass, simple SUR (D only)","output":{"quantity":"foliage_biomass"},"expression":"exp(-2.472 + 1.637 * ln(D))","published":{"expression":"exp(-2.472 + 1.637 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus contorta","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["US"],"place":"Oregon, USA (several forests)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":33,"dbh_min_cm":13.5,"dbh_max_cm":42.9,"method":"seemingly unrelated regression (simple SUR), component equations constrained to sum to total, fitted in original scale"},"evidence":[{"field":"expression","quote":"Foliage = exp(a41 + a42*X1); a41 = -2.472, a42 = 1.637","locator":"Eqs. 2-5 (X1 = ln DBH) and Table 3, Simple SUR, Lodgepole pine"},{"field":"fit.n_trees","quote":"22 Douglas-fir (Pseudotsuga menziesii (Mirbel) Franco) and 33 lodgepole pine (Pinus contorta) trees","locator":"Materials and Methods, Data and Study Area"}],"check":[{"inputs":{"D":15},"expected":7.107,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25},"expected":16.4003,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":40},"expected":35.3994,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Read from the author's accepted manuscript (draft, manuscript ID cjfr-2015-0256.R1), not the typeset article; values may differ from the final print. Fitted in original scale (nonlinear SUR), so no log back-transform correction. DBH in cm, biomass in kg (Eq. 2-5 text). Extended SUR models using height and crown length are not included (crown length is not a canonical variable)."},{"id":"poudel-2016-lp-stem","source":"poudel-2016","name":"Lodgepole pine bole biomass, simple SUR (D only)","output":{"quantity":"stem_biomass"},"expression":"exp(-2.374 + 2.373 * ln(D))","published":{"expression":"exp(-2.374 + 2.373 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus contorta","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["US"],"place":"Oregon, USA (several forests)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":33,"dbh_min_cm":13.5,"dbh_max_cm":42.9,"method":"seemingly unrelated regression (simple SUR), component equations constrained to sum to total, fitted in original scale"},"evidence":[{"field":"expression","quote":"Bole = exp(a11 + a12*X1); a11 = -2.374, a12 = 2.373","locator":"Eqs. 2-5 (X1 = ln DBH) and Table 3, Simple SUR, Lodgepole pine"},{"field":"fit.n_trees","quote":"22 Douglas-fir (Pseudotsuga menziesii (Mirbel) Franco) and 33 lodgepole pine (Pinus contorta) trees","locator":"Materials and Methods, Data and Study Area"}],"check":[{"inputs":{"D":15},"expected":57.5241,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25},"expected":193.3288,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":40},"expected":589.7572,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Read from the author's accepted manuscript (draft, manuscript ID cjfr-2015-0256.R1), not the typeset article; values may differ from the final print. Fitted in original scale (nonlinear SUR), so no log back-transform correction. DBH in cm, biomass in kg (Eq. 2-5 text). Bole is stem wood; bark is reported as a separate component (not provided here as there is no matching output quantity). Extended SUR models using height and crown length are not included (crown length is not a canonical variable)."},{"id":"poudel-2019-abies-amabilis","source":"poudel-2019","name":"Pacific silver fir total aboveground biomass from DBH and height (Table 4)","output":{"quantity":"agb"},"expression":"exp(-2.7231 + 1.8546 * ln(D) + 0.7567 * ln(H))","published":{"expression":"exp(-2.7231 + 1.8546 * ln(DBH) + 0.7567 * ln(HT))","units":{"DBH":"cm","HT":"m"},"variables":{"DBH":"D","HT":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Abies amabilis","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["US"],"place":"Western U.S.A., legacy destructive-sampling biomass collection (Radtke et al. 2015)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":37,"dbh_min_cm":4.5,"dbh_max_cm":90.4,"h_min_m":3.1,"h_max_m":40.3,"method":"nonlinear regression, response not log-transformed (CF = 1.0000)"},"evidence":[{"field":"expression","quote":"Pacific silver fir a, b, c, d, CF: −2.7231 1.8546 0.7567 CF 1.0000; model form exp(a + bX1 + cX2)","locator":"Table 4, species row and table note"},{"field":"fit.n_trees","quote":"Pacific silver fir ... n 37","locator":"Table 1"},{"field":"fit.dbh_min_cm","quote":"Pacific silver fir DBH min 4.5 max 90.4; HT min 3.1 max 40.3","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":15},"expected":131.8898,"origin":"computed","note":"computed from the Table 4 coefficients"},{"inputs":{"D":40,"H":25},"expected":702.0602,"origin":"computed","note":"computed from the Table 4 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"AGB is total aboveground live-tree biomass (stem, bark, branches, foliage). X1 = ln(DBH), X2 = ln(HT), DBH in cm and HT in m. Species identified from the common name in Table 4 (scientific name added from the standard species symbol). Stand type is not stated. Observed ranges in Table 1 cover all trees of the species used."},{"id":"poudel-2019-abies-concolor","source":"poudel-2019","name":"White fir total aboveground biomass from DBH (Table 4)","output":{"quantity":"agb"},"expression":"1.0089 * exp(-1.5759 + 2.2315 * ln(D))","published":{"expression":"1.0089 * exp(-1.5759 + 2.2315 * ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Abies concolor","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["US"],"place":"Western U.S.A., legacy destructive-sampling biomass collection (Radtke et al. 2015)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":10,"dbh_min_cm":28.4,"dbh_max_cm":66.5,"h_min_m":17.7,"h_max_m":39.7,"cf":1.0089,"method":"regression on ln(AGB) with Baskerville log-bias correction factor"},"evidence":[{"field":"expression","quote":"White fir a, b, c, d, CF: −1.5759 2.2315 CF 1.0089; model form exp(a + bX1)","locator":"Table 4, species row and table note"},{"field":"fit.n_trees","quote":"White fir ... n 10","locator":"Table 1"},{"field":"fit.dbh_min_cm","quote":"White fir DBH min 28.4 max 66.5; HT min 17.7 max 39.7","locator":"Table 1"}],"check":[{"inputs":{"D":15},"expected":87.8802,"origin":"computed","note":"computed from the Table 4 coefficients"},{"inputs":{"D":35},"expected":582.1452,"origin":"computed","note":"computed from the Table 4 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"AGB is total aboveground live-tree biomass (stem, bark, branches, foliage). X1 = ln(DBH), X2 = ln(HT), DBH in cm and HT in m. Species identified from the common name in Table 4 (scientific name added from the standard species symbol). Stand type is not stated. Observed ranges in Table 1 cover all trees of the species used."},{"id":"poudel-2019-abies-grandis","source":"poudel-2019","name":"Grand fir total aboveground biomass from DBH (Table 4)","output":{"quantity":"agb"},"expression":"exp(-2.2106 + 2.4297 * ln(D))","published":{"expression":"exp(-2.2106 + 2.4297 * ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Abies grandis","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["US"],"place":"Western U.S.A., legacy destructive-sampling biomass collection (Radtke et al. 2015)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":17,"dbh_min_cm":12.4,"dbh_max_cm":84.3,"h_min_m":8.7,"h_max_m":44.4,"method":"nonlinear regression, response not log-transformed (CF = 1.0000)"},"evidence":[{"field":"expression","quote":"Grand fir a, b, c, d, CF: −2.2106 2.4297 CF 1.0000; model form exp(a + bX1)","locator":"Table 4, species row and table note"},{"field":"fit.n_trees","quote":"Grand fir ... n 17","locator":"Table 1"},{"field":"fit.dbh_min_cm","quote":"Grand fir DBH min 12.4 max 84.3; HT min 8.7 max 44.4","locator":"Table 1"}],"check":[{"inputs":{"D":15},"expected":78.9764,"origin":"computed","note":"computed from the Table 4 coefficients"},{"inputs":{"D":35},"expected":618.8291,"origin":"computed","note":"computed from the Table 4 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"AGB is total aboveground live-tree biomass (stem, bark, branches, foliage). X1 = ln(DBH), X2 = ln(HT), DBH in cm and HT in m. Species identified from the common name in Table 4 (scientific name added from the standard species symbol). Stand type is not stated. Observed ranges in Table 1 cover all trees of the species used."},{"id":"poudel-2019-abies-lasiocarpa","source":"poudel-2019","name":"Subalpine fir total aboveground biomass from DBH and height (Table 4)","output":{"quantity":"agb"},"expression":"exp(-5.5175 + 2.6795 * ln(D) + 1.2805 * ln(H) + (-0.0759) * H)","published":{"expression":"exp(-5.5175 + 2.6795 * ln(DBH) + 1.2805 * ln(HT) + (-0.0759) * HT)","units":{"DBH":"cm","HT":"m"},"variables":{"DBH":"D","HT":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Abies lasiocarpa","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["US"],"place":"Western U.S.A., legacy destructive-sampling biomass collection (Radtke et al. 2015)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":98,"dbh_min_cm":3.5,"dbh_max_cm":44.4,"h_min_m":2.2,"h_max_m":27.9,"method":"nonlinear regression, response not log-transformed (CF = 1.0000)"},"evidence":[{"field":"expression","quote":"Subalpine fir a, b, c, d, CF: −5.5175 2.6795 1.2805 −0.0759 CF 1.0000; model form exp(a + bX1 + cX2 + dX3)","locator":"Table 4, species row and table note"},{"field":"fit.n_trees","quote":"Subalpine fir ... n 98","locator":"Table 1"},{"field":"fit.dbh_min_cm","quote":"Subalpine fir DBH min 3.5 max 44.4; HT min 2.2 max 27.9","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":15},"expected":126.3079,"origin":"computed","note":"computed from the Table 4 coefficients"},{"inputs":{"D":40,"H":25},"expected":728.5986,"origin":"computed","note":"computed from the Table 4 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"AGB is total aboveground live-tree biomass (stem, bark, branches, foliage). X1 = ln(DBH), X2 = ln(HT), DBH in cm and HT in m. Species identified from the common name in Table 4 (scientific name added from the standard species symbol). Stand type is not stated. Observed ranges in Table 1 cover all trees of the species used."},{"id":"poudel-2019-alnus-rubra","source":"poudel-2019","name":"Red alder total aboveground biomass from DBH and height (Table 4)","output":{"quantity":"agb"},"expression":"1.0281 * exp(-3.8516 + 2.3174 * ln(D) + 0.6283 * ln(H))","published":{"expression":"1.0281 * exp(-3.8516 + 2.3174 * ln(DBH) + 0.6283 * ln(HT))","units":{"DBH":"cm","HT":"m"},"variables":{"DBH":"D","HT":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Alnus rubra","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["US"],"place":"Western U.S.A., legacy destructive-sampling biomass collection (Radtke et al. 2015)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":25,"dbh_min_cm":9.3,"dbh_max_cm":51.8,"h_min_m":7.4,"h_max_m":31.6,"cf":1.0281,"method":"regression on ln(AGB) with Baskerville log-bias correction factor"},"evidence":[{"field":"expression","quote":"Red alder a, b, c, d, CF: −3.8516 2.3174 0.6283 CF 1.0281; model form exp(a + bX1 + cX2)","locator":"Table 4, species row and table note"},{"field":"fit.n_trees","quote":"Red alder ... n 25","locator":"Table 1"},{"field":"fit.dbh_min_cm","quote":"Red alder DBH min 9.3 max 51.8; HT min 7.4 max 31.6","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":15},"expected":123.9515,"origin":"computed","note":"computed from the Table 4 coefficients"},{"inputs":{"D":40,"H":25},"expected":851.6208,"origin":"computed","note":"computed from the Table 4 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"AGB is total aboveground live-tree biomass (stem, bark, branches, foliage). X1 = ln(DBH), X2 = ln(HT), DBH in cm and HT in m. Species identified from the common name in Table 4 (scientific name added from the standard species symbol). Stand type is not stated. Observed ranges in Table 1 cover all trees of the species used."},{"id":"poudel-2019-betula-papyrifera","source":"poudel-2019","name":"Paper birch total aboveground biomass from DBH (Table 4)","output":{"quantity":"agb"},"expression":"1.0179 * exp(-2.5782 + 2.5299 * ln(D))","published":{"expression":"1.0179 * exp(-2.5782 + 2.5299 * ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Betula papyrifera","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["US"],"place":"Western U.S.A., legacy destructive-sampling biomass collection (Radtke et al. 2015)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":23,"dbh_min_cm":4.7,"dbh_max_cm":30.6,"h_min_m":5.6,"h_max_m":21.9,"cf":1.0179,"method":"regression on ln(AGB) with Baskerville log-bias correction factor"},"evidence":[{"field":"expression","quote":"Paper birch a, b, c, d, CF: −2.5782 2.5299 CF 1.0179; model form exp(a + bX1)","locator":"Table 4, species row and table note"},{"field":"fit.n_trees","quote":"Paper birch ... n 23","locator":"Table 1"},{"field":"fit.dbh_min_cm","quote":"Paper birch DBH min 4.7 max 30.6; HT min 5.6 max 21.9","locator":"Table 1"}],"check":[{"inputs":{"D":15},"expected":73.013,"origin":"computed","note":"computed from the Table 4 coefficients"},{"inputs":{"D":35},"expected":622.7946,"origin":"computed","note":"computed from the Table 4 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"AGB is total aboveground live-tree biomass (stem, bark, branches, foliage). X1 = ln(DBH), X2 = ln(HT), DBH in cm and HT in m. Species identified from the common name in Table 4 (scientific name added from the standard species symbol). Stand type is not stated. Observed ranges in Table 1 cover all trees of the species used."},{"id":"poudel-2019-juniperus-osteosperma","source":"poudel-2019","name":"Utah juniper total aboveground biomass from DBH (Table 4)","output":{"quantity":"agb"},"expression":"exp(-0.7457 + 1.8999 * ln(D))","published":{"expression":"exp(-0.7457 + 1.8999 * ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Juniperus osteosperma","family":"Cupressaceae","group":"conifer"},"region":{"scope":"regional","countries":["US"],"place":"Western U.S.A., legacy destructive-sampling biomass collection (Radtke et al. 2015)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":33,"dbh_min_cm":4.1,"dbh_max_cm":50.5,"h_min_m":2.7,"h_max_m":9.4,"method":"nonlinear regression, response not log-transformed (CF = 1.0000)"},"evidence":[{"field":"expression","quote":"Utah juniper a, b, c, d, CF: −0.7457 1.8999 CF 1.0000; model form exp(a + bX1)","locator":"Table 4, species row and table note"},{"field":"fit.n_trees","quote":"Utah juniper ... n 33","locator":"Table 1"},{"field":"fit.dbh_min_cm","quote":"Utah juniper DBH min 4.1 max 50.5; HT min 2.7 max 9.4","locator":"Table 1"}],"check":[{"inputs":{"D":15},"expected":81.3959,"origin":"computed","note":"computed from the Table 4 coefficients"},{"inputs":{"D":35},"expected":407.1191,"origin":"computed","note":"computed from the Table 4 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"AGB is total aboveground live-tree biomass (stem, bark, branches, foliage). X1 = ln(DBH), X2 = ln(HT), DBH in cm and HT in m. Species identified from the common name in Table 4 (scientific name added from the standard species symbol). Stand type is not stated. Observed ranges in Table 1 cover all trees of the species used."},{"id":"poudel-2019-picea-engelmannii","source":"poudel-2019","name":"Engelmann spruce total aboveground biomass from DBH and height (Table 4)","output":{"quantity":"agb"},"expression":"exp(-2.6483 + 1.4762 * ln(D) + 1.1357 * ln(H))","published":{"expression":"exp(-2.6483 + 1.4762 * ln(DBH) + 1.1357 * ln(HT))","units":{"DBH":"cm","HT":"m"},"variables":{"DBH":"D","HT":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Picea engelmannii","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["US"],"place":"Western U.S.A., legacy destructive-sampling biomass collection (Radtke et al. 2015)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":74,"dbh_min_cm":0.7,"dbh_max_cm":57.6,"h_min_m":1.5,"h_max_m":40.8,"method":"nonlinear regression, response not log-transformed (CF = 1.0000)"},"evidence":[{"field":"expression","quote":"Engelmann spruce a, b, c, d, CF: −2.6483 1.4762 1.1357 CF 1.0000; model form exp(a + bX1 + cX2)","locator":"Table 4, species row and table note"},{"field":"fit.n_trees","quote":"Engelmann spruce ... n 74","locator":"Table 1"},{"field":"fit.dbh_min_cm","quote":"Engelmann spruce DBH min 0.7 max 57.6; HT min 1.5 max 40.8","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":15},"expected":127.6807,"origin":"computed","note":"computed from the Table 4 coefficients"},{"inputs":{"D":40,"H":25},"expected":634.5405,"origin":"computed","note":"computed from the Table 4 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"AGB is total aboveground live-tree biomass (stem, bark, branches, foliage). X1 = ln(DBH), X2 = ln(HT), DBH in cm and HT in m. Species identified from the common name in Table 4 (scientific name added from the standard species symbol). Stand type is not stated. Observed ranges in Table 1 cover all trees of the species used."},{"id":"poudel-2019-picea-glauca","source":"poudel-2019","name":"White spruce total aboveground biomass from DBH and height (Table 4)","output":{"quantity":"agb"},"expression":"exp(-1.9682 + 1.9401 * ln(D) + 0.421 * ln(H))","published":{"expression":"exp(-1.9682 + 1.9401 * ln(DBH) + 0.421 * ln(HT))","units":{"DBH":"cm","HT":"m"},"variables":{"DBH":"D","HT":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Picea glauca","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["US"],"place":"Western U.S.A., legacy destructive-sampling biomass collection (Radtke et al. 2015)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":108,"dbh_min_cm":3.6,"dbh_max_cm":57.6,"h_min_m":2.2,"h_max_m":37.5,"method":"nonlinear regression, response not log-transformed (CF = 1.0000)"},"evidence":[{"field":"expression","quote":"White spruce a, b, c, d, CF: −1.9682 1.9401 0.421 CF 1.0000; model form exp(a + bX1 + cX2)","locator":"Table 4, species row and table note"},{"field":"fit.n_trees","quote":"White spruce ... n 108","locator":"Table 1"},{"field":"fit.dbh_min_cm","quote":"White spruce DBH min 3.6 max 57.6; HT min 2.2 max 37.5","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":15},"expected":146.0442,"origin":"computed","note":"computed from the Table 4 coefficients"},{"inputs":{"D":40,"H":25},"expected":694.8818,"origin":"computed","note":"computed from the Table 4 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"AGB is total aboveground live-tree biomass (stem, bark, branches, foliage). X1 = ln(DBH), X2 = ln(HT), DBH in cm and HT in m. Species identified from the common name in Table 4 (scientific name added from the standard species symbol). Stand type is not stated. Observed ranges in Table 1 cover all trees of the species used."},{"id":"poudel-2019-picea-mariana","source":"poudel-2019","name":"Black spruce total aboveground biomass from DBH and height (Table 4)","output":{"quantity":"agb"},"expression":"exp(-2.6988 + 1.9463 * ln(D) + 0.6183 * ln(H))","published":{"expression":"exp(-2.6988 + 1.9463 * ln(DBH) + 0.6183 * ln(HT))","units":{"DBH":"cm","HT":"m"},"variables":{"DBH":"D","HT":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Picea mariana","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["US"],"place":"Western U.S.A., legacy destructive-sampling biomass collection (Radtke et al. 2015)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":67,"dbh_min_cm":3.5,"dbh_max_cm":38.4,"h_min_m":2.9,"h_max_m":30.1,"method":"nonlinear regression, response not log-transformed (CF = 1.0000)"},"evidence":[{"field":"expression","quote":"Black spruce a, b, c, d, CF: −2.6988 1.9463 0.6183 CF 1.0000; model form exp(a + bX1 + cX2)","locator":"Table 4, species row and table note"},{"field":"fit.n_trees","quote":"Black spruce ... n 67","locator":"Table 1"},{"field":"fit.dbh_min_cm","quote":"Black spruce DBH min 3.5 max 38.4; HT min 2.9 max 30.1","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":15},"expected":122.2638,"origin":"computed","note":"computed from the Table 4 coefficients"},{"inputs":{"D":40,"H":25},"expected":646.1922,"origin":"computed","note":"computed from the Table 4 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"AGB is total aboveground live-tree biomass (stem, bark, branches, foliage). X1 = ln(DBH), X2 = ln(HT), DBH in cm and HT in m. Species identified from the common name in Table 4 (scientific name added from the standard species symbol). Stand type is not stated. Observed ranges in Table 1 cover all trees of the species used."},{"id":"poudel-2019-picea-sitchensis","source":"poudel-2019","name":"Sitka spruce total aboveground biomass from DBH and height (Table 4)","output":{"quantity":"agb"},"expression":"1.0091 * exp(-2.5826 + 1.8196 * ln(D) + 0.7108 * ln(H))","published":{"expression":"1.0091 * exp(-2.5826 + 1.8196 * ln(DBH) + 0.7108 * ln(HT))","units":{"DBH":"cm","HT":"m"},"variables":{"DBH":"D","HT":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Picea sitchensis","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["US"],"place":"Western U.S.A., legacy destructive-sampling biomass collection (Radtke et al. 2015)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":19,"dbh_min_cm":7.2,"dbh_max_cm":47.8,"h_min_m":4.6,"h_max_m":40.7,"cf":1.0091,"method":"regression on ln(AGB) with Baskerville log-bias correction factor"},"evidence":[{"field":"expression","quote":"Sitka spruce a, b, c, d, CF: −2.5826 1.8196 0.7108 CF 1.0091; model form exp(a + bX1 + cX2)","locator":"Table 4, species row and table note"},{"field":"fit.n_trees","quote":"Sitka spruce ... n 19","locator":"Table 1"},{"field":"fit.dbh_min_cm","quote":"Sitka spruce DBH min 7.2 max 47.8; HT min 4.6 max 40.7","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":15},"expected":121.7994,"origin":"computed","note":"computed from the Table 4 coefficients"},{"inputs":{"D":40,"H":25},"expected":618.1436,"origin":"computed","note":"computed from the Table 4 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"AGB is total aboveground live-tree biomass (stem, bark, branches, foliage). X1 = ln(DBH), X2 = ln(HT), DBH in cm and HT in m. Species identified from the common name in Table 4 (scientific name added from the standard species symbol). Stand type is not stated. Observed ranges in Table 1 cover all trees of the species used."},{"id":"poudel-2019-pinus-contorta","source":"poudel-2019","name":"Lodgepole pine total aboveground biomass from DBH and height (Table 4)","output":{"quantity":"agb"},"expression":"exp(-1.8641 + 1.801 * ln(D) + 0.5617 * ln(H))","published":{"expression":"exp(-1.8641 + 1.801 * ln(DBH) + 0.5617 * ln(HT))","units":{"DBH":"cm","HT":"m"},"variables":{"DBH":"D","HT":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus contorta","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["US"],"place":"Western U.S.A., legacy destructive-sampling biomass collection (Radtke et al. 2015)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":218,"dbh_min_cm":0.9,"dbh_max_cm":60,"h_min_m":1.5,"h_max_m":39.6,"method":"nonlinear regression, response not log-transformed (CF = 1.0000)"},"evidence":[{"field":"expression","quote":"Lodgepole pine a, b, c, d, CF: −1.8641 1.801 0.5617 CF 1.0000; model form exp(a + bX1 + cX2)","locator":"Table 4, species row and table note"},{"field":"fit.n_trees","quote":"Lodgepole pine ... n 218","locator":"Table 1"},{"field":"fit.dbh_min_cm","quote":"Lodgepole pine DBH min 0.9 max 60.0; HT min 1.5 max 39.6","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":15},"expected":156.3857,"origin":"computed","note":"computed from the Table 4 coefficients"},{"inputs":{"D":40,"H":25},"expected":726.0468,"origin":"computed","note":"computed from the Table 4 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"AGB is total aboveground live-tree biomass (stem, bark, branches, foliage). X1 = ln(DBH), X2 = ln(HT), DBH in cm and HT in m. Species identified from the common name in Table 4 (scientific name added from the standard species symbol). Stand type is not stated. Observed ranges in Table 1 cover all trees of the species used."},{"id":"poudel-2019-pinus-jeffreyi","source":"poudel-2019","name":"Jeffrey pine total aboveground biomass from DBH (Table 4)","output":{"quantity":"agb"},"expression":"1.0258 * exp(-3.1894 + 3.2244 * ln(D))","published":{"expression":"1.0258 * exp(-3.1894 + 3.2244 * ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus jeffreyi","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["US"],"place":"Western U.S.A., legacy destructive-sampling biomass collection (Radtke et al. 2015)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":9,"dbh_min_cm":14.5,"dbh_max_cm":43.4,"h_min_m":8.4,"h_max_m":21,"cf":1.0258,"method":"regression on ln(AGB) with Baskerville log-bias correction factor"},"evidence":[{"field":"expression","quote":"Jeffrey pine a, b, c, d, CF: −3.1894 3.2244 CF 1.0258; model form exp(a + bX1)","locator":"Table 4, species row and table note"},{"field":"fit.n_trees","quote":"Jeffrey pine ... n 9","locator":"Table 1"},{"field":"fit.dbh_min_cm","quote":"Jeffrey pine DBH min 14.5 max 43.4; HT min 8.4 max 21.0","locator":"Table 1"}],"check":[{"inputs":{"D":15},"expected":261.8861,"origin":"computed","note":"computed from the Table 4 coefficients"},{"inputs":{"D":35},"expected":4023.6192,"origin":"computed","note":"computed from the Table 4 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"AGB is total aboveground live-tree biomass (stem, bark, branches, foliage). X1 = ln(DBH), X2 = ln(HT), DBH in cm and HT in m. Species identified from the common name in Table 4 (scientific name added from the standard species symbol). Stand type is not stated. Observed ranges in Table 1 cover all trees of the species used."},{"id":"poudel-2019-pinus-monophylla","source":"poudel-2019","name":"Singleleaf pinyon total aboveground biomass from DBH and height (Table 4)","output":{"quantity":"agb"},"expression":"exp(-0.5048 + 1.4016 * ln(D) + 0.8522 * ln(H))","published":{"expression":"exp(-0.5048 + 1.4016 * ln(DBH) + 0.8522 * ln(HT))","units":{"DBH":"cm","HT":"m"},"variables":{"DBH":"D","HT":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus monophylla","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["US"],"place":"Western U.S.A., legacy destructive-sampling biomass collection (Radtke et al. 2015)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":75,"dbh_min_cm":0.4,"dbh_max_cm":115.6,"h_min_m":1.4,"h_max_m":14,"method":"nonlinear regression, response not log-transformed (CF = 1.0000)"},"evidence":[{"field":"expression","quote":"Singleleaf pinyon a, b, c, d, CF: −0.5048 1.4016 0.8522 CF 1.0000; model form exp(a + bX1 + cX2)","locator":"Table 4, species row and table note"},{"field":"fit.n_trees","quote":"Singleleaf pinyon ... n 75","locator":"Table 1"},{"field":"fit.dbh_min_cm","quote":"Singleleaf pinyon DBH min 0.4 max 115.6; HT min 1.4 max 14.0","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":15},"expected":404.1632,"origin":"computed","note":"computed from the Table 4 coefficients"},{"inputs":{"D":40,"H":25},"expected":1650.2126,"origin":"computed","note":"computed from the Table 4 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"AGB is total aboveground live-tree biomass (stem, bark, branches, foliage). X1 = ln(DBH), X2 = ln(HT), DBH in cm and HT in m. Species identified from the common name in Table 4 (scientific name added from the standard species symbol). Stand type is not stated. Observed ranges in Table 1 cover all trees of the species used."},{"id":"poudel-2019-pinus-ponderosa","source":"poudel-2019","name":"Ponderosa pine total aboveground biomass from DBH and height (Table 4)","output":{"quantity":"agb"},"expression":"1.0246 * exp(-0.6616 + 0.8288 * ln(D) + 0.2127 * ln(D)^2 + 0.4145 * ln(H))","published":{"expression":"1.0246 * exp(-0.6616 + 0.8288 * ln(DBH) + 0.2127 * ln(DBH)^2 + 0.4145 * ln(HT))","units":{"DBH":"cm","HT":"m"},"variables":{"DBH":"D","HT":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus ponderosa","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["US"],"place":"Western U.S.A., legacy destructive-sampling biomass collection (Radtke et al. 2015)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":158,"dbh_min_cm":0.8,"dbh_max_cm":63,"h_min_m":1.4,"h_max_m":37.9,"cf":1.0246,"method":"regression on ln(AGB) with Baskerville log-bias correction factor"},"evidence":[{"field":"expression","quote":"Ponderosa pine a, b, c, d, CF: −0.6616 0.8288 0.2127 0.4145 CF 1.0246; model form exp(a + bX1 + cX1² + dX2)","locator":"Table 4, species row and table note"},{"field":"fit.n_trees","quote":"Ponderosa pine ... n 158","locator":"Table 1"},{"field":"fit.dbh_min_cm","quote":"Ponderosa pine DBH min 0.8 max 63.0; HT min 1.4 max 37.9","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":15},"expected":131.2245,"origin":"computed","note":"computed from the Table 4 coefficients"},{"inputs":{"D":40,"H":25},"expected":771.7459,"origin":"computed","note":"computed from the Table 4 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"AGB is total aboveground live-tree biomass (stem, bark, branches, foliage). X1 = ln(DBH), X2 = ln(HT), DBH in cm and HT in m. Species identified from the common name in Table 4 (scientific name added from the standard species symbol). Stand type is not stated. Observed ranges in Table 1 cover all trees of the species used."},{"id":"poudel-2019-populus-tremuloides","source":"poudel-2019","name":"Quaking aspen total aboveground biomass from DBH and height (Table 4)","output":{"quantity":"agb"},"expression":"exp(-3.0439 + 2.0345 * ln(D) + 0.642 * ln(H))","published":{"expression":"exp(-3.0439 + 2.0345 * ln(DBH) + 0.642 * ln(HT))","units":{"DBH":"cm","HT":"m"},"variables":{"DBH":"D","HT":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Populus tremuloides","family":"Salicaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["US"],"place":"Western U.S.A., legacy destructive-sampling biomass collection (Radtke et al. 2015)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":26,"dbh_min_cm":6,"dbh_max_cm":34.8,"h_min_m":5.4,"h_max_m":25.6,"method":"nonlinear regression, response not log-transformed (CF = 1.0000)"},"evidence":[{"field":"expression","quote":"Quaking aspen a, b, c, d, CF: −3.0439 2.0345 0.642 CF 1.0000; model form exp(a + bX1 + cX2)","locator":"Table 4, species row and table note"},{"field":"fit.n_trees","quote":"Quaking aspen ... n 26","locator":"Table 1"},{"field":"fit.dbh_min_cm","quote":"Quaking aspen DBH min 6.0 max 34.8; HT min 5.4 max 25.6","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":15},"expected":120.2395,"origin":"computed","note":"computed from the Table 4 coefficients"},{"inputs":{"D":40,"H":25},"expected":683.785,"origin":"computed","note":"computed from the Table 4 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"AGB is total aboveground live-tree biomass (stem, bark, branches, foliage). X1 = ln(DBH), X2 = ln(HT), DBH in cm and HT in m. Species identified from the common name in Table 4 (scientific name added from the standard species symbol). Stand type is not stated. Observed ranges in Table 1 cover all trees of the species used."},{"id":"poudel-2019-populus-trichocarpa","source":"poudel-2019","name":"Black cottonwood total aboveground biomass from DBH and height (Table 4)","output":{"quantity":"agb"},"expression":"exp(-3.8009 + 1.63 * ln(D) + 1.3354 * ln(H))","published":{"expression":"exp(-3.8009 + 1.63 * ln(DBH) + 1.3354 * ln(HT))","units":{"DBH":"cm","HT":"m"},"variables":{"DBH":"D","HT":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Populus trichocarpa","family":"Salicaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["US"],"place":"Western U.S.A., legacy destructive-sampling biomass collection (Radtke et al. 2015)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":19,"dbh_min_cm":7.4,"dbh_max_cm":30.6,"h_min_m":6.9,"h_max_m":23.5,"method":"nonlinear regression, response not log-transformed (CF = 1.0000)"},"evidence":[{"field":"expression","quote":"Black cottonwood a, b, c, d, CF: −3.8009 1.63 1.3354 CF 1.0000; model form exp(a + bX1 + cX2)","locator":"Table 4, species row and table note"},{"field":"fit.n_trees","quote":"Black cottonwood ... n 19","locator":"Table 1"},{"field":"fit.dbh_min_cm","quote":"Black cottonwood DBH min 7.4 max 30.6; HT min 6.9 max 23.5","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":15},"expected":109.7795,"origin":"computed","note":"computed from the Table 4 coefficients"},{"inputs":{"D":40,"H":25},"expected":672.1357,"origin":"computed","note":"computed from the Table 4 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"AGB is total aboveground live-tree biomass (stem, bark, branches, foliage). X1 = ln(DBH), X2 = ln(HT), DBH in cm and HT in m. Species identified from the common name in Table 4 (scientific name added from the standard species symbol). Stand type is not stated. Observed ranges in Table 1 cover all trees of the species used."},{"id":"poudel-2019-pseudotsuga-menziesii","source":"poudel-2019","name":"Douglas-fir total aboveground biomass from DBH and height (Table 4)","output":{"quantity":"agb"},"expression":"exp(-2.8246 + 1.6385 * ln(D) + 1.0474 * ln(H))","published":{"expression":"exp(-2.8246 + 1.6385 * ln(DBH) + 1.0474 * ln(HT))","units":{"DBH":"cm","HT":"m"},"variables":{"DBH":"D","HT":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pseudotsuga menziesii","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["US"],"place":"Western U.S.A., legacy destructive-sampling biomass collection (Radtke et al. 2015)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":424,"dbh_min_cm":1.8,"dbh_max_cm":114,"h_min_m":2.4,"h_max_m":64,"method":"nonlinear regression, response not log-transformed (CF = 1.0000)"},"evidence":[{"field":"expression","quote":"Douglas-fir a, b, c, d, CF: −2.8246 1.6385 1.0474 CF 1.0000; model form exp(a + bX1 + cX2)","locator":"Table 4, species row and table note"},{"field":"fit.n_trees","quote":"Douglas-fir ... n 424","locator":"Table 1"},{"field":"fit.dbh_min_cm","quote":"Douglas-fir DBH min 1.8 max 114.0; HT min 2.4 max 64.0","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":15},"expected":137.0463,"origin":"computed","note":"computed from the Table 4 coefficients"},{"inputs":{"D":40,"H":25},"expected":728.567,"origin":"computed","note":"computed from the Table 4 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"AGB is total aboveground live-tree biomass (stem, bark, branches, foliage). X1 = ln(DBH), X2 = ln(HT), DBH in cm and HT in m. Species identified from the common name in Table 4 (scientific name added from the standard species symbol). Stand type is not stated. Observed ranges in Table 1 cover all trees of the species used."},{"id":"poudel-2019-sequoia-sempervirens","source":"poudel-2019","name":"Redwood total aboveground biomass from DBH and height (Table 4)","output":{"quantity":"agb"},"expression":"1.0205 * exp(-3.0491 + 1.9407 * ln(D) + 0.6876 * ln(H))","published":{"expression":"1.0205 * exp(-3.0491 + 1.9407 * ln(DBH) + 0.6876 * ln(HT))","units":{"DBH":"cm","HT":"m"},"variables":{"DBH":"D","HT":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Sequoia sempervirens","family":"Cupressaceae","group":"conifer"},"region":{"scope":"regional","countries":["US"],"place":"Western U.S.A., legacy destructive-sampling biomass collection (Radtke et al. 2015)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":141,"dbh_min_cm":8.3,"dbh_max_cm":681,"h_min_m":9.4,"h_max_m":115.6,"cf":1.0205,"method":"regression on ln(AGB) with Baskerville log-bias correction factor"},"evidence":[{"field":"expression","quote":"Redwood a, b, c, d, CF: −3.0491 1.9407 0.6876 CF 1.0205; model form exp(a + bX1 + cX2)","locator":"Table 4, species row and table note"},{"field":"fit.n_trees","quote":"Redwood ... n 141","locator":"Table 1"},{"field":"fit.dbh_min_cm","quote":"Redwood DBH min 8.3 max 681.0; HT min 9.4 max 115.6","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":15},"expected":104.2785,"origin":"computed","note":"computed from the Table 4 coefficients"},{"inputs":{"D":40,"H":25},"expected":568.7836,"origin":"computed","note":"computed from the Table 4 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"AGB is total aboveground live-tree biomass (stem, bark, branches, foliage). X1 = ln(DBH), X2 = ln(HT), DBH in cm and HT in m. Species identified from the common name in Table 4 (scientific name added from the standard species symbol). Stand type is not stated. Observed ranges in Table 1 cover all trees of the species used."},{"id":"poudel-2019-sequoiadendron-giganteum","source":"poudel-2019","name":"Giant sequoia total aboveground biomass from DBH and height (Table 4)","output":{"quantity":"agb"},"expression":"1.0356 * exp(-3.8735 + 2.1251 * ln(D) + 0.601 * ln(H))","published":{"expression":"1.0356 * exp(-3.8735 + 2.1251 * ln(DBH) + 0.601 * ln(HT))","units":{"DBH":"cm","HT":"m"},"variables":{"DBH":"D","HT":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Sequoiadendron giganteum","family":"Cupressaceae","group":"conifer"},"region":{"scope":"regional","countries":["US"],"place":"Western U.S.A., legacy destructive-sampling biomass collection (Radtke et al. 2015)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":43,"dbh_min_cm":15.9,"dbh_max_cm":850.7,"h_min_m":8.3,"h_max_m":96.3,"cf":1.0356,"method":"regression on ln(AGB) with Baskerville log-bias correction factor"},"evidence":[{"field":"expression","quote":"Giant sequoia a, b, c, d, CF: −3.8735 2.1251 0.601 CF 1.0356; model form exp(a + bX1 + cX2)","locator":"Table 4, species row and table note"},{"field":"fit.n_trees","quote":"Giant sequoia ... n 43","locator":"Table 1"},{"field":"fit.dbh_min_cm","quote":"Giant sequoia DBH min 15.9 max 850.7; HT min 8.3 max 96.3","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":15},"expected":63.7679,"origin":"computed","note":"computed from the Table 4 coefficients"},{"inputs":{"D":40,"H":25},"expected":378.1395,"origin":"computed","note":"computed from the Table 4 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"AGB is total aboveground live-tree biomass (stem, bark, branches, foliage). X1 = ln(DBH), X2 = ln(HT), DBH in cm and HT in m. Species identified from the common name in Table 4 (scientific name added from the standard species symbol). Stand type is not stated. Observed ranges in Table 1 cover all trees of the species used."},{"id":"poudel-2019-thuja-plicata","source":"poudel-2019","name":"Western redcedar total aboveground biomass from DBH and height (Table 4)","output":{"quantity":"agb"},"expression":"1.0151 * exp(-2.5443 + 1.5701 * ln(D) + 0.9162 * ln(H))","published":{"expression":"1.0151 * exp(-2.5443 + 1.5701 * ln(DBH) + 0.9162 * ln(HT))","units":{"DBH":"cm","HT":"m"},"variables":{"DBH":"D","HT":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Thuja plicata","family":"Cupressaceae","group":"conifer"},"region":{"scope":"regional","countries":["US"],"place":"Western U.S.A., legacy destructive-sampling biomass collection (Radtke et al. 2015)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":50,"dbh_min_cm":3.8,"dbh_max_cm":54.2,"h_min_m":3.4,"h_max_m":32.4,"cf":1.0151,"method":"regression on ln(AGB) with Baskerville log-bias correction factor"},"evidence":[{"field":"expression","quote":"Western redcedar a, b, c, d, CF: −2.5443 1.5701 0.9162 CF 1.0151; model form exp(a + bX1 + cX2)","locator":"Table 4, species row and table note"},{"field":"fit.n_trees","quote":"Western redcedar ... n 50","locator":"Table 1"},{"field":"fit.dbh_min_cm","quote":"Western redcedar DBH min 3.8 max 54.2; HT min 3.4 max 32.4","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":15},"expected":105.1515,"origin":"computed","note":"computed from the Table 4 coefficients"},{"inputs":{"D":40,"H":25},"expected":498.5634,"origin":"computed","note":"computed from the Table 4 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"AGB is total aboveground live-tree biomass (stem, bark, branches, foliage). X1 = ln(DBH), X2 = ln(HT), DBH in cm and HT in m. Species identified from the common name in Table 4 (scientific name added from the standard species symbol). Stand type is not stated. Observed ranges in Table 1 cover all trees of the species used."},{"id":"poudel-2019-tsuga-heterophylla","source":"poudel-2019","name":"Western hemlock total aboveground biomass from DBH and height (Table 4)","output":{"quantity":"agb"},"expression":"1.0209 * exp(-2.7552 + 1.8521 * ln(D) + 0.7642 * ln(H))","published":{"expression":"1.0209 * exp(-2.7552 + 1.8521 * ln(DBH) + 0.7642 * ln(HT))","units":{"DBH":"cm","HT":"m"},"variables":{"DBH":"D","HT":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Tsuga heterophylla","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["US"],"place":"Western U.S.A., legacy destructive-sampling biomass collection (Radtke et al. 2015)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":115,"dbh_min_cm":3.1,"dbh_max_cm":77.8,"h_min_m":3.5,"h_max_m":53,"cf":1.0209,"method":"regression on ln(AGB) with Baskerville log-bias correction factor"},"evidence":[{"field":"expression","quote":"Western hemlock a, b, c, d, CF: −2.7552 1.8521 0.7642 CF 1.0209; model form exp(a + bX1 + cX2)","locator":"Table 4, species row and table note"},{"field":"fit.n_trees","quote":"Western hemlock ... n 115","locator":"Table 1"},{"field":"fit.dbh_min_cm","quote":"Western hemlock DBH min 3.1 max 77.8; HT min 3.5 max 53.0","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":15},"expected":132.0753,"origin":"computed","note":"computed from the Table 4 coefficients"},{"inputs":{"D":40,"H":25},"expected":704.5245,"origin":"computed","note":"computed from the Table 4 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"AGB is total aboveground live-tree biomass (stem, bark, branches, foliage). X1 = ln(DBH), X2 = ln(HT), DBH in cm and HT in m. Species identified from the common name in Table 4 (scientific name added from the standard species symbol). Stand type is not stated. Observed ranges in Table 1 cover all trees of the species used."},{"id":"poudel-2019-tsuga-mertensiana","source":"poudel-2019","name":"Mountain hemlock total aboveground biomass from DBH (Table 4)","output":{"quantity":"agb"},"expression":"exp(-0.9861 + 2.0975 * ln(D))","published":{"expression":"exp(-0.9861 + 2.0975 * ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Tsuga mertensiana","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["US"],"place":"Western U.S.A., legacy destructive-sampling biomass collection (Radtke et al. 2015)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":9,"dbh_min_cm":13.5,"dbh_max_cm":76.2,"h_min_m":6.1,"h_max_m":37.2,"method":"nonlinear regression, response not log-transformed (CF = 1.0000)"},"evidence":[{"field":"expression","quote":"Mountain hemlock a, b, c, d, CF: −0.9861 2.0975 CF 1.0000; model form exp(a + bX1)","locator":"Table 4, species row and table note"},{"field":"fit.n_trees","quote":"Mountain hemlock ... n 9","locator":"Table 1"},{"field":"fit.dbh_min_cm","quote":"Mountain hemlock DBH min 13.5 max 76.2; HT min 6.1 max 37.2","locator":"Table 1"}],"check":[{"inputs":{"D":15},"expected":109.2933,"origin":"computed","note":"computed from the Table 4 coefficients"},{"inputs":{"D":35},"expected":646.2863,"origin":"computed","note":"computed from the Table 4 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"AGB is total aboveground live-tree biomass (stem, bark, branches, foliage). X1 = ln(DBH), X2 = ln(HT), DBH in cm and HT in m. Species identified from the common name in Table 4 (scientific name added from the standard species symbol). Stand type is not stated. Observed ranges in Table 1 cover all trees of the species used."},{"id":"prado-1991-branches-d-d2h","source":"prado-1991","name":"Eucalyptus globulus branch (>4 cm) dry weight (Cuadro 2)","output":{"quantity":"branch_biomass"},"expression":"17.912236 - 3.17988 * D + 0.00316 * (D^2 * H)","published":{"expression":"17.912236 - 3.17988 * DAP + 0.00316 * (DAP^2 * H)","units":{"DAP":"cm","H":"m"},"variables":{"DAP":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Eucalyptus globulus subsp. globulus","family":"Myrtaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CL"],"place":"Coastal zone of Valparaíso Region (Longotoma, Peñuelas, Santa Marta), central Chile","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":41,"r2":0.73,"method":"stepwise linear regression on dry weight (Cuadro 2)"},"evidence":[{"field":"expression","quote":"PRAM = 17,912236 - 3,17988 D + 0,00316 (D²H)","locator":"Cuadro 2, RAMAS (> 4cm) row, p. 64"},{"field":"fit.n_trees","quote":"se utilizó una muestra de 41 árboles extraídos de tres parcelas","locator":"Metodos, Muestreo, p. 60"},{"field":"fit.r2","quote":"RAMAS (> 4cm) ... 0,73","locator":"Cuadro 2, R² column, p. 64"}],"check":[{"inputs":{"D":20,"H":20},"expected":-20.4054,"origin":"computed","note":"hand-computed from the Cuadro 2 form"},{"inputs":{"D":35,"H":25},"expected":3.3914,"origin":"computed","note":"hand-computed from the Cuadro 2 form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Branches thicker than 4 cm only (twigs and leaves are separate components). Very imprecise: the authors report a 89.7% mean square error and advise taking branches by difference. Trees from three unmanaged 20-25 year old coppice-origin (monte alto) stands. The paper does not print DBH or height ranges of the fitted sample, only a table of diameter classes, so none is given. H is read as total height (HTOT): the paper's own stand-table comparison feeds DAP and HT into these functions. No correction factor is stated for the log models, so none applies here. Not additive with the other component functions, as the authors note."},{"id":"prado-1991-stem-f10-d2h","source":"prado-1991","name":"Eucalyptus globulus stem dry weight to 10 cm top (Cuadro 2)","output":{"quantity":"stem_biomass"},"expression":"-4.170064 + 0.014155 * (D^2 * H)","published":{"expression":"-4.170064 + 0.014155 * (DAP^2 * H)","units":{"DAP":"cm","H":"m"},"variables":{"DAP":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Eucalyptus globulus subsp. globulus","family":"Myrtaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CL"],"place":"Coastal zone of Valparaíso Region (Longotoma, Peñuelas, Santa Marta), central Chile","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":41,"r2":0.98,"method":"stepwise linear regression on dry weight (Cuadro 2)"},"evidence":[{"field":"expression","quote":"PF10 = - 4,170064 + 0,014155 (D²H)","locator":"Cuadro 2, FUSTE (D.L 10 cm) row, p. 64"},{"field":"fit.n_trees","quote":"se utilizó una muestra de 41 árboles extraídos de tres parcelas","locator":"Metodos, Muestreo, p. 60"},{"field":"fit.r2","quote":"FUSTE (D.L 10 cm) ... 0,98","locator":"Cuadro 2, R² column, p. 64"}],"check":[{"inputs":{"D":20,"H":20},"expected":109.0699,"origin":"computed","note":"hand-computed from the Cuadro 2 form"},{"inputs":{"D":35,"H":25},"expected":429.3268,"origin":"computed","note":"hand-computed from the Cuadro 2 form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Stem from the stump (30 cm) up to a 10 cm utilisation limit. The paper does not say whether the stem weight includes bark. Trees from three unmanaged 20-25 year old coppice-origin (monte alto) stands. The paper does not print DBH or height ranges of the fitted sample, only a table of diameter classes, so none is given. H is read as total height (HTOT): the paper's own stand-table comparison feeds DAP and HT into these functions. No correction factor is stated for the log models, so none applies here. Not additive with the other component functions, as the authors note."},{"id":"prado-1991-stem-f4-d2h","source":"prado-1991","name":"Eucalyptus globulus stem dry weight to 4 cm top (Cuadro 2)","output":{"quantity":"stem_biomass"},"expression":"13.289 + 0.01394 * (D^2 * H)","published":{"expression":"13.289 + 0.01394 * (DAP^2 * H)","units":{"DAP":"cm","H":"m"},"variables":{"DAP":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Eucalyptus globulus subsp. globulus","family":"Myrtaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CL"],"place":"Coastal zone of Valparaíso Region (Longotoma, Peñuelas, Santa Marta), central Chile","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":41,"r2":0.98,"method":"stepwise linear regression on dry weight (Cuadro 2)"},"evidence":[{"field":"expression","quote":"PF4 = 13,289 + 0,01394 (D²H)","locator":"Cuadro 2, FUSTE (D.L 4 cm) row, p. 64"},{"field":"fit.n_trees","quote":"se utilizó una muestra de 41 árboles extraídos de tres parcelas","locator":"Metodos, Muestreo, p. 60"},{"field":"fit.r2","quote":"FUSTE (D.L 4 cm) ... 0,98","locator":"Cuadro 2, R² column, p. 64"}],"check":[{"inputs":{"D":20,"H":20},"expected":124.809,"origin":"computed","note":"hand-computed from the Cuadro 2 form"},{"inputs":{"D":35,"H":25},"expected":440.2015,"origin":"computed","note":"hand-computed from the Cuadro 2 form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Stem from the stump (30 cm) up to a 4 cm utilisation limit. The paper does not say whether the stem weight includes bark (bark of the stem is weighed separately). Trees from three unmanaged 20-25 year old coppice-origin (monte alto) stands. The paper does not print DBH or height ranges of the fitted sample, only a table of diameter classes, so none is given. H is read as total height (HTOT): the paper's own stand-table comparison feeds DAP and HT into these functions. No correction factor is stated for the log models, so none applies here. Not additive with the other component functions, as the authors note."},{"id":"prado-1991-total-d","source":"prado-1991","name":"Eucalyptus globulus total dry weight from D (Cuadro 2)","output":{"quantity":"agb"},"expression":"-35.3503 + 0.54647 * D^2","published":{"expression":"-35.3503 + 0.54647 * DAP^2","units":{"DAP":"cm"},"variables":{"DAP":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Eucalyptus globulus subsp. globulus","family":"Myrtaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["CL"],"place":"Coastal zone of Valparaíso Region (Longotoma, Peñuelas, Santa Marta), central Chile","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":41,"r2":0.98,"method":"stepwise linear regression on dry weight (Cuadro 2)"},"evidence":[{"field":"expression","quote":"PTOT = - 35,3503 + 0,54647 D²","locator":"Cuadro 2, TOTAL row, p. 64"},{"field":"fit.n_trees","quote":"se utilizó una muestra de 41 árboles extraídos de tres parcelas","locator":"Metodos, Muestreo, p. 60"},{"field":"fit.r2","quote":"TOTAL ... 0,98","locator":"Cuadro 2, R² column, p. 64"}],"check":[{"inputs":{"D":20},"expected":183.2377,"origin":"computed","note":"hand-computed from the Cuadro 2 form"},{"inputs":{"D":35},"expected":634.0755,"origin":"computed","note":"hand-computed from the Cuadro 2 form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Total dry weight per tree (kg) from DAP only; the paper's Grafico 1 draws it for DAP 14 to 40 cm ('dentro del rango en que la función es confiable'). The Cuadro 2 PTOT is the total of stem, bark, branches, twigs and leaves; the paper does not name stump or roots, so no exclusion is stated. Trees from three unmanaged 20-25 year old coppice-origin (monte alto) stands. The paper does not print DBH or height ranges of the fitted sample, only a table of diameter classes, so none is given. H is read as total height (HTOT): the paper's own stand-table comparison feeds DAP and HT into these functions. No correction factor is stated for the log models, so none applies here. Not additive with the other component functions, as the authors note."},{"id":"prayogo-2018-dbh","source":"prayogo-2018","name":"Areca palm (pinang) AGB from DBH","output":{"quantity":"agb"},"expression":"0.0689 * D^2.5977","published":{"expression":"0.0689 * D^2.5977","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Areca catechu","family":"Arecaceae","group":"palm"},"region":{"scope":"site","countries":["ID"],"place":"Wambena village, Depapre, Jayapura, Papua","biomes":["tropical"]},"stand":"agroforestry","fit":{"n_trees":9,"r2":0.74,"method":"power regression"},"evidence":[{"field":"expression","quote":"TDW (AGB) = 0.0689 D 2.5977 (R² = 0.74)","locator":"Results and Discussion, p. 385"},{"field":"fit.n_trees","quote":"A total of 9 palms were measured","locator":"Materials and Methods"}],"check":[{"inputs":{"D":6},"expected":7.2381,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":9},"expected":20.7518,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":11},"expected":34.9498,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"D is stem diameter at 1.3 m (D1.3, called DBH in Fig. 4). AGB = stem (WBT) plus leaf dry weight, fruit and flowers taken into account; kg dry mass. Palms sampled in classes of <6, 6-9, 9-11 and >11 cm DBH (3 per class); exact min and max not printed. The two height equations (AGB = 0.8164 H^1.4202 and AGB = 0.03883*H*D^1.2) are left out because the paper calls H both total plant height and stem height."},{"id":"puc-kauil-2020-model1-multi","source":"puc-kauil-2020","name":"Small-tree total AGB, multi-species, wood density model (Model I)","output":{"quantity":"agb"},"expression":"0.078479 * (rho * D^2 * H)^0.945339","published":{"expression":"0.078479 * (rho * DBH^2 * H)^0.945339","units":{"DBH":"cm","H":"m","rho":"g/cm3"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"22 small-diameter (DBH ≤ 10 cm) tree species of secondary tropical forest","group":"broadleaf"},"region":{"scope":"regional","countries":["MX"],"place":"Southeast Yucatan peninsula (between Sian Ka'an, Quintana Roo, and Calakmul, Campeche)","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":311,"dbh_min_cm":1,"dbh_max_cm":10,"method":"Nonlinear weighted OLS (SAS PROC MODEL), multi-species"},"evidence":[{"field":"expression","quote":"AGBtotal-tree multi-species=0.078479(ρ·DBH2·H)0.945339","locator":"Tab. 1, p. 168"},{"field":"fit.n_trees","quote":"311 trees in total","locator":"Biomass data collection, p. 167"},{"field":"fit.dbh_max_cm","quote":"22 species ranging from 1 to 10 cm DBH","locator":"Biomass data collection, p. 167"}],"check":[{"inputs":{"D":6,"H":7,"rho":0.55},"expected":8.307,"origin":"computed","note":"computed from the Tab. 1 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Multi-species total-tree equation (stem + branches + foliage) from Model I. No correction factor is stated for this form. The paper lists adj-R2 0.96 and RMSE 0.1389. Tab. 1 prints the stem, branch and foliage component equations too; not added here."},{"id":"puc-kauil-2020-model2-multi","source":"puc-kauil-2020","name":"Small-tree total AGB, multi-species, DBH and height model (Model II)","output":{"quantity":"agb"},"expression":"exp(-2.97501) * (D^2 * H)^0.957051","published":{"expression":"exp(-2.97501) * (DBH^2 * H)^0.957051","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"22 small-diameter (DBH ≤ 10 cm) tree species of secondary tropical forest","group":"broadleaf"},"region":{"scope":"regional","countries":["MX"],"place":"Southeast Yucatan peninsula (between Sian Ka'an, Quintana Roo, and Calakmul, Campeche)","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":311,"dbh_min_cm":1,"dbh_max_cm":10,"method":"Nonlinear weighted OLS (SAS PROC MODEL), multi-species"},"evidence":[{"field":"expression","quote":"AGBtotal-tree multi-species= exp(-2.97501)(DBH2·H)0.957051","locator":"Tab. 1, p. 168"},{"field":"fit.n_trees","quote":"311 trees in total","locator":"Biomass data collection, p. 167"},{"field":"fit.dbh_max_cm","quote":"22 species ranging from 1 to 10 cm DBH","locator":"Biomass data collection, p. 167"}],"check":[{"inputs":{"D":6,"H":7},"expected":10.1445,"origin":"computed","note":"computed from the Tab. 1 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Multi-species total-tree equation (stem + branches + foliage) from Model II, which needs no wood density. The paper lists adj-R2 0.95 and RMSE 0.1552. No correction factor is stated."},{"id":"qirom-2020-all-species-d","source":"qirom-2020","name":"Peat swamp forest, all species, volume from D (model 3)","output":{"quantity":"stem_volume"},"expression":"0.00042 * D^2.2254","published":{"expression":"0.00042 * DBH^2.2254","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m3"},"taxon":{"level":"mixed","name":"Mixed peat swamp forest species (6 species, Dipterocarpaceae and others)","group":"broadleaf"},"region":{"scope":"site","countries":["ID"],"place":"IUPHHK PT Tingang Karya Mandiri peat swamp forest, Central Kalimantan","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":84,"dbh_min_cm":5.6,"dbh_max_cm":29.2,"h_min_m":6,"h_max_m":24,"r2":0.955,"method":"ordinary least squares, non-linear power form V = a0 D^a1"},"evidence":[{"field":"expression","quote":"V = 0.00042 D2.22540 dengan R2 95,5 %","locator":"Best model, all species, p. 10 (Tabel 3 model 3)"},{"field":"fit.n_trees","quote":"Keseluruhan jenis Diameter 13,4 5,6 29,2 5,3 84","locator":"Tabel 1, Penyusunan Model"}],"check":[{"inputs":{"D":8},"expected":0.042952,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":15},"expected":0.17399,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25},"expected":0.54228,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Volume to a 5 cm top diameter by Smalian's formula on 2 m sections (stem volume, no branches). Diameter was taken at 1.3 m or 20 cm above ground (as printed: 'setinggi dada (1,3 m) atau 20 cm di atas permukaan tanah'); the paper does not say which trees used which. Natural-log form as printed, with no correction factor stated. Fit ranges are those of the model-development subset (70% of the trees, Table 1)."},{"id":"qirom-2020-dipterocarpaceae-d2h","source":"qirom-2020","name":"Peat swamp forest, Dipterocarpaceae group, volume from D and H (model 7)","output":{"quantity":"stem_volume"},"expression":"0.000074 * (D^2 * H)^0.954143","published":{"expression":"0.000074 * (DBH^2 * H)^0.954143","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D","H":"H"},"output_unit":"m3"},"taxon":{"level":"family","name":"Dipterocarpaceae","family":"Dipterocarpaceae","group":"broadleaf"},"region":{"scope":"site","countries":["ID"],"place":"IUPHHK PT Tingang Karya Mandiri peat swamp forest, Central Kalimantan","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":42,"dbh_min_cm":6.3,"dbh_max_cm":29.2,"h_min_m":8.2,"h_max_m":20.2,"r2":0.989,"method":"ordinary least squares, non-linear power form V = a0 (D2H)^a1"},"evidence":[{"field":"expression","quote":"V = 0,000074(D2H)0,954143 R2 = 98,9 %","locator":"Best model, Dipterocarpaceae group, p. 10 (Tabel 3 model 7)"},{"field":"fit.n_trees","quote":"Kelompok dipterocarpaceae Diameter 13,0 6,3 29,2 4,5 42","locator":"Tabel 1, Penyusunan Model"}],"check":[{"inputs":{"D":10,"H":12},"expected":0.064152,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":16},"expected":0.31686,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":28,"H":20},"expected":0.74506,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Volume to a 5 cm top diameter by Smalian's formula on 2 m sections (stem volume, no branches). Diameter was taken at 1.3 m or 20 cm above ground (as printed: 'setinggi dada (1,3 m) atau 20 cm di atas permukaan tanah'); the paper does not say which trees used which. Natural-log form as printed, with no correction factor stated. Fit ranges are those of the model-development subset (70% of the trees, Table 1)."},{"id":"qirom-2020-non-dipterocarpaceae-ln-d","source":"qirom-2020","name":"Peat swamp forest, non-Dipterocarpaceae group, volume from D (model 1)","output":{"quantity":"stem_volume"},"expression":"exp(-8.398596 + 2.4688 * ln(D))","published":{"expression":"exp(-8.398596 + 2.4688 * ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m3"},"taxon":{"level":"mixed","name":"Non-dipterocarp species group (P. rostratum, C. soulattri, D. pectinatum, as printed)","group":"broadleaf"},"region":{"scope":"site","countries":["ID"],"place":"IUPHHK PT Tingang Karya Mandiri peat swamp forest, Central Kalimantan","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":42,"dbh_min_cm":5.6,"dbh_max_cm":27,"h_min_m":6,"h_max_m":24,"r2":0.973,"method":"ordinary least squares on ln(V) = a0 + a1 ln(D)"},"evidence":[{"field":"expression","quote":"ln (V ) = -8.398596 + 2.4688 ln (D ) ... R2 97,3 %","locator":"Best model, non-Dipterocarpaceae group, p. 10 (Tabel 3 model 1)"},{"field":"fit.n_trees","quote":"Kelompok non-dipterocarpaceae Diameter 13,9 5,6 27,0 6,0 42","locator":"Tabel 1, Penyusunan Model"}],"check":[{"inputs":{"D":8},"expected":0.038202,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":15},"expected":0.18033,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25},"expected":0.63646,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Volume to a 5 cm top diameter by Smalian's formula on 2 m sections (stem volume, no branches). Diameter was taken at 1.3 m or 20 cm above ground (as printed: 'setinggi dada (1,3 m) atau 20 cm di atas permukaan tanah'); the paper does not say which trees used which. Natural-log form as printed, with no correction factor stated. Fit ranges are those of the model-development subset (70% of the trees, Table 1). Caution: Tabel 3 prints identical coefficients for models 1, 2, 5 and 6 in both the Dipterocarpaceae and non-Dipterocarpaceae groups (with different F and Se values), which looks like a typesetting error in the paper; the text on p. 10 attributes this model 1 to the non-Dipterocarpaceae group, which is the reading used here."},{"id":"ramirez-2022-age18-agb-d2","source":"ramirez-2022","name":"Total aboveground biomass, 18-year secondary montane forest, DAP² only","output":{"quantity":"agb"},"expression":"exp(9.546 + 1.348 * ln((D/100)^2))","published":{"expression":"exp(9.546 + 1.348 * ln(Dap^2))","units":{"Dap":"m"},"variables":{"Dap":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Secondary montane forest trees, mixed species","group":"broadleaf"},"region":{"scope":"site","countries":["EC"],"place":"Cotacachi, Imbabura, NW Ecuador (1850 m a.s.l.)","biomes":["tropical","montane"]},"stand":"natural","fit":{"method":"regression on ln-transformed variables; coefficients as printed"},"evidence":[{"field":"expression","quote":"Bt = e^(9,546 + 1,348*ln(Dap²))","locator":"Tabla 4, p. 88 (total, 18-year)"}],"check":[{"inputs":{"D":10},"expected":28.1692,"origin":"computed","note":"hand-computed from the published form (Dap in m)"},{"inputs":{"D":25},"expected":333.1359,"origin":"computed","note":"hand-computed from the published form (Dap in m)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap is in metres in the paper (Tabla 4 footnote), Ht in m, biomass in kg; printed as e^(a + b*ln(...)), natural log, no correction factor stated. Per-model adjusted R2 is in Tabla 4 but it is adjusted R2 and the per-model n is not stated, so both left out. Total = stem + branches + leaves. Stand age approx. (owner information)."},{"id":"ramirez-2022-age18-agb-d2h","source":"ramirez-2022","name":"Total aboveground biomass, 18-year secondary montane forest, DAP²·Ht","output":{"quantity":"agb"},"expression":"exp(6.060 + 1.055 * ln((D/100)^2*H))","published":{"expression":"exp(6.060 + 1.055 * ln(Dap^2*Ht))","units":{"Dap":"m","Ht":"m"},"variables":{"Dap":"D","Ht":"H"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Secondary montane forest trees, mixed species","group":"broadleaf"},"region":{"scope":"site","countries":["EC"],"place":"Cotacachi, Imbabura, NW Ecuador (1850 m a.s.l.)","biomes":["tropical","montane"]},"stand":"natural","fit":{"method":"regression on ln-transformed variables; coefficients as printed"},"evidence":[{"field":"expression","quote":"Bt = e^(6,060 + 1,055*ln(Dap²Ht))","locator":"Tabla 4, p. 88 (total, 18-year)"}],"check":[{"inputs":{"D":10,"H":8},"expected":29.8253,"origin":"computed","note":"hand-computed from the published form (Dap in m)"},{"inputs":{"D":25,"H":15},"expected":400.179,"origin":"computed","note":"hand-computed from the published form (Dap in m)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap is in metres in the paper (Tabla 4 footnote), Ht in m, biomass in kg; printed as e^(a + b*ln(...)), natural log, no correction factor stated. Per-model adjusted R2 is in Tabla 4 but it is adjusted R2 and the per-model n is not stated, so both left out. Total = stem + branches + leaves. Stand age approx. (owner information)."},{"id":"ramirez-2022-age18-branch-d2","source":"ramirez-2022","name":"Branch biomass, 18-year secondary montane forest, DAP² only","output":{"quantity":"branch_biomass"},"expression":"exp(8.122 + 1.340 * ln((D/100)^2))","published":{"expression":"exp(8.122 + 1.340 * ln(Dap^2))","units":{"Dap":"m"},"variables":{"Dap":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Secondary montane forest trees, mixed species","group":"broadleaf"},"region":{"scope":"site","countries":["EC"],"place":"Cotacachi, Imbabura, NW Ecuador (1850 m a.s.l.)","biomes":["tropical","montane"]},"stand":"natural","fit":{"method":"regression on ln-transformed variables; coefficients as printed"},"evidence":[{"field":"expression","quote":"Br = e^(8,122 + 1,340*ln(Dap²))","locator":"Tabla 4, p. 88 (ramas, 18-year)"}],"check":[{"inputs":{"D":10},"expected":7.0362,"origin":"computed","note":"hand-computed from the published form (Dap in m)"},{"inputs":{"D":25},"expected":82.001,"origin":"computed","note":"hand-computed from the published form (Dap in m)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap is in metres in the paper (Tabla 4 footnote), Ht in m, biomass in kg; printed as e^(a + b*ln(...)), natural log, no correction factor stated. Per-model adjusted R2 is in Tabla 4 but it is adjusted R2 and the per-model n is not stated, so both left out. Total = stem + branches + leaves. Stand age approx. (owner information)."},{"id":"ramirez-2022-age18-branch-d2h","source":"ramirez-2022","name":"Branch biomass, 18-year secondary montane forest, DAP²·Ht","output":{"quantity":"branch_biomass"},"expression":"exp(4.675 + 1.030 * ln((D/100)^2*H))","published":{"expression":"exp(4.675 + 1.030 * ln(Dap^2*Ht))","units":{"Dap":"m","Ht":"m"},"variables":{"Dap":"D","Ht":"H"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Secondary montane forest trees, mixed species","group":"broadleaf"},"region":{"scope":"site","countries":["EC"],"place":"Cotacachi, Imbabura, NW Ecuador (1850 m a.s.l.)","biomes":["tropical","montane"]},"stand":"natural","fit":{"method":"regression on ln-transformed variables; coefficients as printed"},"evidence":[{"field":"expression","quote":"Br = e^(4,675 + 1,030*ln(Dap²Ht))","locator":"Tabla 4, p. 88 (ramas, 18-year)"}],"check":[{"inputs":{"D":10,"H":8},"expected":7.9526,"origin":"computed","note":"hand-computed from the published form (Dap in m)"},{"inputs":{"D":25,"H":15},"expected":100.3361,"origin":"computed","note":"hand-computed from the published form (Dap in m)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap is in metres in the paper (Tabla 4 footnote), Ht in m, biomass in kg; printed as e^(a + b*ln(...)), natural log, no correction factor stated. Per-model adjusted R2 is in Tabla 4 but it is adjusted R2 and the per-model n is not stated, so both left out. Total = stem + branches + leaves. Stand age approx. (owner information)."},{"id":"ramirez-2022-age18-foliage-d2","source":"ramirez-2022","name":"Foliage biomass, 18-year secondary montane forest, DAP² only","output":{"quantity":"foliage_biomass"},"expression":"exp(7.110 + 1.345 * ln((D/100)^2))","published":{"expression":"exp(7.110 + 1.345 * ln(Dap^2))","units":{"Dap":"m"},"variables":{"Dap":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Secondary montane forest trees, mixed species","group":"broadleaf"},"region":{"scope":"site","countries":["EC"],"place":"Cotacachi, Imbabura, NW Ecuador (1850 m a.s.l.)","biomes":["tropical","montane"]},"stand":"natural","fit":{"method":"regression on ln-transformed variables; coefficients as printed"},"evidence":[{"field":"expression","quote":"Bh = e^(7,110 + 1,345*ln(Dap²))","locator":"Tabla 4, p. 88 (hojas, 18-year)"}],"check":[{"inputs":{"D":10},"expected":2.4994,"origin":"computed","note":"hand-computed from the published form (Dap in m)"},{"inputs":{"D":25},"expected":29.3963,"origin":"computed","note":"hand-computed from the published form (Dap in m)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap is in metres in the paper (Tabla 4 footnote), Ht in m, biomass in kg; printed as e^(a + b*ln(...)), natural log, no correction factor stated. Per-model adjusted R2 is in Tabla 4 but it is adjusted R2 and the per-model n is not stated, so both left out. Total = stem + branches + leaves. Stand age approx. (owner information)."},{"id":"ramirez-2022-age18-foliage-d2h","source":"ramirez-2022","name":"Foliage biomass, 18-year secondary montane forest, DAP²·Ht","output":{"quantity":"foliage_biomass"},"expression":"exp(3.632 + 1.042 * ln((D/100)^2*H))","published":{"expression":"exp(3.632 + 1.042 * ln(Dap^2*Ht))","units":{"Dap":"m","Ht":"m"},"variables":{"Dap":"D","Ht":"H"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Secondary montane forest trees, mixed species","group":"broadleaf"},"region":{"scope":"site","countries":["EC"],"place":"Cotacachi, Imbabura, NW Ecuador (1850 m a.s.l.)","biomes":["tropical","montane"]},"stand":"natural","fit":{"method":"regression on ln-transformed variables; coefficients as printed"},"evidence":[{"field":"expression","quote":"Bh = e^(3,632 + 1,042*ln(Dap²Ht))","locator":"Tabla 4, p. 88 (hojas, 18-year)"}],"check":[{"inputs":{"D":10,"H":8},"expected":2.7188,"origin":"computed","note":"hand-computed from the published form (Dap in m)"},{"inputs":{"D":25,"H":15},"expected":35.3307,"origin":"computed","note":"hand-computed from the published form (Dap in m)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap is in metres in the paper (Tabla 4 footnote), Ht in m, biomass in kg; printed as e^(a + b*ln(...)), natural log, no correction factor stated. Per-model adjusted R2 is in Tabla 4 but it is adjusted R2 and the per-model n is not stated, so both left out. Total = stem + branches + leaves. Stand age approx. (owner information)."},{"id":"ramirez-2022-age18-stem-d2","source":"ramirez-2022","name":"Stem biomass, 18-year secondary montane forest, DAP² only","output":{"quantity":"stem_biomass"},"expression":"exp(9.156 + 1.354 * ln((D/100)^2))","published":{"expression":"exp(9.156 + 1.354 * ln(Dap^2))","units":{"Dap":"m"},"variables":{"Dap":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Secondary montane forest trees, mixed species","group":"broadleaf"},"region":{"scope":"site","countries":["EC"],"place":"Cotacachi, Imbabura, NW Ecuador (1850 m a.s.l.)","biomes":["tropical","montane"]},"stand":"natural","fit":{"method":"regression on ln-transformed variables; coefficients as printed"},"evidence":[{"field":"expression","quote":"Bf = e^(9,156 + 1,354*ln(Dap²))","locator":"Tabla 4, p. 88 (fuste, 18-year)"}],"check":[{"inputs":{"D":10},"expected":18.5524,"origin":"computed","note":"hand-computed from the published form (Dap in m)"},{"inputs":{"D":25},"expected":221.8308,"origin":"computed","note":"hand-computed from the published form (Dap in m)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap is in metres in the paper (Tabla 4 footnote), Ht in m, biomass in kg; printed as e^(a + b*ln(...)), natural log, no correction factor stated. Per-model adjusted R2 is in Tabla 4 but it is adjusted R2 and the per-model n is not stated, so both left out. Total = stem + branches + leaves. Stand age approx. (owner information)."},{"id":"ramirez-2022-age18-stem-d2h","source":"ramirez-2022","name":"Stem biomass, 18-year secondary montane forest, DAP²·Ht","output":{"quantity":"stem_biomass"},"expression":"exp(5.645 + 1.07 * ln((D/100)^2*H))","published":{"expression":"exp(5.645 + 1.07 * ln(Dap^2*Ht))","units":{"Dap":"m","Ht":"m"},"variables":{"Dap":"D","Ht":"H"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Secondary montane forest trees, mixed species","group":"broadleaf"},"region":{"scope":"site","countries":["EC"],"place":"Cotacachi, Imbabura, NW Ecuador (1850 m a.s.l.)","biomes":["tropical","montane"]},"stand":"natural","fit":{"method":"regression on ln-transformed variables; coefficients as printed"},"evidence":[{"field":"expression","quote":"Bf = e^(5,645 + 1,07*ln(Dap²Ht))","locator":"Tabla 4, p. 88 (fuste, 18-year)"}],"check":[{"inputs":{"D":10,"H":8},"expected":18.9626,"origin":"computed","note":"hand-computed from the published form (Dap in m)"},{"inputs":{"D":25,"H":15},"expected":263.9986,"origin":"computed","note":"hand-computed from the published form (Dap in m)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap is in metres in the paper (Tabla 4 footnote), Ht in m, biomass in kg; printed as e^(a + b*ln(...)), natural log, no correction factor stated. Per-model adjusted R2 is in Tabla 4 but it is adjusted R2 and the per-model n is not stated, so both left out. Total = stem + branches + leaves. Stand age approx. (owner information)."},{"id":"ramirez-2022-age30-agb-d2","source":"ramirez-2022","name":"Total aboveground biomass, 30-year secondary montane forest, DAP² only","output":{"quantity":"agb"},"expression":"exp(8.882 + 1.301 * ln((D/100)^2))","published":{"expression":"exp(8.882 + 1.301 * ln(Dap^2))","units":{"Dap":"m"},"variables":{"Dap":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Secondary montane forest trees, mixed species","group":"broadleaf"},"region":{"scope":"site","countries":["EC"],"place":"Cotacachi, Imbabura, NW Ecuador (1850 m a.s.l.)","biomes":["tropical","montane"]},"stand":"natural","fit":{"method":"regression on ln-transformed variables; coefficients as printed"},"evidence":[{"field":"expression","quote":"Bt = e^(8,882 + 1,301*ln(Dap²))","locator":"Tabla 4, p. 88 (total, 30-year)"}],"check":[{"inputs":{"D":10},"expected":18.0054,"origin":"computed","note":"hand-computed from the published form (Dap in m)"},{"inputs":{"D":25},"expected":195.3635,"origin":"computed","note":"hand-computed from the published form (Dap in m)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap is in metres in the paper (Tabla 4 footnote), Ht in m, biomass in kg; printed as e^(a + b*ln(...)), natural log, no correction factor stated. Per-model adjusted R2 is in Tabla 4 but it is adjusted R2 and the per-model n is not stated, so both left out. Total = stem + branches + leaves. Stand age approx. (owner information)."},{"id":"ramirez-2022-age30-agb-d2h","source":"ramirez-2022","name":"Total aboveground biomass, 30-year secondary montane forest, DAP²·Ht","output":{"quantity":"agb"},"expression":"exp(5.797 + 1.024 * ln((D/100)^2*H))","published":{"expression":"exp(5.797 + 1.024 * ln(Dap^2*Ht))","units":{"Dap":"m","Ht":"m"},"variables":{"Dap":"D","Ht":"H"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Secondary montane forest trees, mixed species","group":"broadleaf"},"region":{"scope":"site","countries":["EC"],"place":"Cotacachi, Imbabura, NW Ecuador (1850 m a.s.l.)","biomes":["tropical","montane"]},"stand":"natural","fit":{"method":"regression on ln-transformed variables; coefficients as printed"},"evidence":[{"field":"expression","quote":"Bt = e^(5,797 + 1,024*ln(Dap²Ht))","locator":"Tabla 4, p. 88 (total, 30-year)"}],"check":[{"inputs":{"D":10,"H":8},"expected":24.7953,"origin":"computed","note":"hand-computed from the published form (Dap in m)"},{"inputs":{"D":25,"H":15},"expected":308.2504,"origin":"computed","note":"hand-computed from the published form (Dap in m)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap is in metres in the paper (Tabla 4 footnote), Ht in m, biomass in kg; printed as e^(a + b*ln(...)), natural log, no correction factor stated. Per-model adjusted R2 is in Tabla 4 but it is adjusted R2 and the per-model n is not stated, so both left out. Total = stem + branches + leaves. Stand age approx. (owner information)."},{"id":"ramirez-2022-age30-branch-d2","source":"ramirez-2022","name":"Branch biomass, 30-year secondary montane forest, DAP² only","output":{"quantity":"branch_biomass"},"expression":"exp(7.457 + 1.300 * ln((D/100)^2))","published":{"expression":"exp(7.457 + 1.300 * ln(Dap^2))","units":{"Dap":"m"},"variables":{"Dap":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Secondary montane forest trees, mixed species","group":"broadleaf"},"region":{"scope":"site","countries":["EC"],"place":"Cotacachi, Imbabura, NW Ecuador (1850 m a.s.l.)","biomes":["tropical","montane"]},"stand":"natural","fit":{"method":"regression on ln-transformed variables; coefficients as printed"},"evidence":[{"field":"expression","quote":"Br = e^(7,457 + 1,300*ln(Dap²))","locator":"Tabla 4, p. 88 (ramas, 30-year)"}],"check":[{"inputs":{"D":10},"expected":4.3504,"origin":"computed","note":"hand-computed from the published form (Dap in m)"},{"inputs":{"D":25},"expected":47.117,"origin":"computed","note":"hand-computed from the published form (Dap in m)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap is in metres in the paper (Tabla 4 footnote), Ht in m, biomass in kg; printed as e^(a + b*ln(...)), natural log, no correction factor stated. Per-model adjusted R2 is in Tabla 4 but it is adjusted R2 and the per-model n is not stated, so both left out. Total = stem + branches + leaves. Stand age approx. (owner information)."},{"id":"ramirez-2022-age30-branch-d2h","source":"ramirez-2022","name":"Branch biomass, 30-year secondary montane forest, DAP²·Ht","output":{"quantity":"branch_biomass"},"expression":"exp(4.385 + 1.011 * ln((D/100)^2*H))","published":{"expression":"exp(4.385 + 1.011 * ln(Dap^2*Ht))","units":{"Dap":"m","Ht":"m"},"variables":{"Dap":"D","Ht":"H"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Secondary montane forest trees, mixed species","group":"broadleaf"},"region":{"scope":"site","countries":["EC"],"place":"Cotacachi, Imbabura, NW Ecuador (1850 m a.s.l.)","biomes":["tropical","montane"]},"stand":"natural","fit":{"method":"regression on ln-transformed variables; coefficients as printed"},"evidence":[{"field":"expression","quote":"Br = e^(4,385 + 1,011*ln(Dap²Ht))","locator":"Tabla 4, p. 88 (ramas, 30-year)"}],"check":[{"inputs":{"D":10,"H":8},"expected":6.2432,"origin":"computed","note":"hand-computed from the published form (Dap in m)"},{"inputs":{"D":25,"H":15},"expected":75.17,"origin":"computed","note":"hand-computed from the published form (Dap in m)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap is in metres in the paper (Tabla 4 footnote), Ht in m, biomass in kg; printed as e^(a + b*ln(...)), natural log, no correction factor stated. Per-model adjusted R2 is in Tabla 4 but it is adjusted R2 and the per-model n is not stated, so both left out. Total = stem + branches + leaves. Stand age approx. (owner information)."},{"id":"ramirez-2022-age30-foliage-d2","source":"ramirez-2022","name":"Foliage biomass, 30-year secondary montane forest, DAP² only","output":{"quantity":"foliage_biomass"},"expression":"exp(6.161 + 1.307 * ln((D/100)^2))","published":{"expression":"exp(6.161 + 1.307 * ln(Dap^2))","units":{"Dap":"m"},"variables":{"Dap":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Secondary montane forest trees, mixed species","group":"broadleaf"},"region":{"scope":"site","countries":["EC"],"place":"Cotacachi, Imbabura, NW Ecuador (1850 m a.s.l.)","biomes":["tropical","montane"]},"stand":"natural","fit":{"method":"regression on ln-transformed variables; coefficients as printed"},"evidence":[{"field":"expression","quote":"Bh = e^(6,161 + 1,307*ln(Dap²))","locator":"Tabla 4, p. 88 (hojas, 30-year)"}],"check":[{"inputs":{"D":10},"expected":1.1526,"origin":"computed","note":"hand-computed from the published form (Dap in m)"},{"inputs":{"D":25},"expected":12.6446,"origin":"computed","note":"hand-computed from the published form (Dap in m)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap is in metres in the paper (Tabla 4 footnote), Ht in m, biomass in kg; printed as e^(a + b*ln(...)), natural log, no correction factor stated. Per-model adjusted R2 is in Tabla 4 but it is adjusted R2 and the per-model n is not stated, so both left out. Total = stem + branches + leaves. Stand age approx. (owner information)."},{"id":"ramirez-2022-age30-foliage-d2h","source":"ramirez-2022","name":"Foliage biomass, 30-year secondary montane forest, DAP²·Ht","output":{"quantity":"foliage_biomass"},"expression":"exp(2.999 + 1.100 * ln((D/100)^2*H))","published":{"expression":"exp(2.999 + 1.100 * ln(Dap^2*Ht))","units":{"Dap":"m","Ht":"m"},"variables":{"Dap":"D","Ht":"H"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Secondary montane forest trees, mixed species","group":"broadleaf"},"region":{"scope":"site","countries":["EC"],"place":"Cotacachi, Imbabura, NW Ecuador (1850 m a.s.l.)","biomes":["tropical","montane"]},"stand":"natural","fit":{"method":"regression on ln-transformed variables; coefficients as printed"},"evidence":[{"field":"expression","quote":"Bh = e^(2,999 + 1,100*ln(Dap²Ht))","locator":"Tabla 4, p. 88 (hojas, 30-year)"}],"check":[{"inputs":{"D":10,"H":8},"expected":1.2469,"origin":"computed","note":"hand-computed from the published form (Dap in m)"},{"inputs":{"D":25,"H":15},"expected":18.6904,"origin":"computed","note":"hand-computed from the published form (Dap in m)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap is in metres in the paper (Tabla 4 footnote), Ht in m, biomass in kg; printed as e^(a + b*ln(...)), natural log, no correction factor stated. Per-model adjusted R2 is in Tabla 4 but it is adjusted R2 and the per-model n is not stated, so both left out. Total = stem + branches + leaves. Stand age approx. (owner information)."},{"id":"ramirez-2022-age30-stem-d2","source":"ramirez-2022","name":"Stem biomass, 30-year secondary montane forest, DAP² only","output":{"quantity":"stem_biomass"},"expression":"exp(8.516 + 1.303 * ln((D/100)^2))","published":{"expression":"exp(8.516 + 1.303 * ln(Dap^2))","units":{"Dap":"m"},"variables":{"Dap":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Secondary montane forest trees, mixed species","group":"broadleaf"},"region":{"scope":"site","countries":["EC"],"place":"Cotacachi, Imbabura, NW Ecuador (1850 m a.s.l.)","biomes":["tropical","montane"]},"stand":"natural","fit":{"method":"regression on ln-transformed variables; coefficients as printed"},"evidence":[{"field":"expression","quote":"Bf = e^(8,516 + 1,303*ln(Dap²))","locator":"Tabla 4, p. 88 (fuste, 30-year)"}],"check":[{"inputs":{"D":10},"expected":12.3723,"origin":"computed","note":"hand-computed from the published form (Dap in m)"},{"inputs":{"D":25},"expected":134.7359,"origin":"computed","note":"hand-computed from the published form (Dap in m)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap is in metres in the paper (Tabla 4 footnote), Ht in m, biomass in kg; printed as e^(a + b*ln(...)), natural log, no correction factor stated. Per-model adjusted R2 is in Tabla 4 but it is adjusted R2 and the per-model n is not stated, so both left out. Total = stem + branches + leaves. Stand age approx. (owner information)."},{"id":"ramirez-2022-age30-stem-d2h","source":"ramirez-2022","name":"Stem biomass, 30-year secondary montane forest, DAP²·Ht","output":{"quantity":"stem_biomass"},"expression":"exp(5.428 + 1.016 * ln((D/100)^2*H))","published":{"expression":"exp(5.428 + 1.016 * ln(Dap^2*Ht))","units":{"Dap":"m","Ht":"m"},"variables":{"Dap":"D","Ht":"H"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Secondary montane forest trees, mixed species","group":"broadleaf"},"region":{"scope":"site","countries":["EC"],"place":"Cotacachi, Imbabura, NW Ecuador (1850 m a.s.l.)","biomes":["tropical","montane"]},"stand":"natural","fit":{"method":"regression on ln-transformed variables; coefficients as printed"},"evidence":[{"field":"expression","quote":"Bf = e^(5,428 + 1,016*ln(Dap²Ht))","locator":"Tabla 4, p. 88 (fuste, 30-year)"}],"check":[{"inputs":{"D":10,"H":8},"expected":17.494,"origin":"computed","note":"hand-computed from the published form (Dap in m)"},{"inputs":{"D":25,"H":15},"expected":213.2423,"origin":"computed","note":"hand-computed from the published form (Dap in m)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap is in metres in the paper (Tabla 4 footnote), Ht in m, biomass in kg; printed as e^(a + b*ln(...)), natural log, no correction factor stated. Per-model adjusted R2 is in Tabla 4 but it is adjusted R2 and the per-model n is not stated, so both left out. Total = stem + branches + leaves. Stand age approx. (owner information)."},{"id":"ramirez-2022-age50-agb-d2","source":"ramirez-2022","name":"Total aboveground biomass, 50-year secondary montane forest, DAP² only","output":{"quantity":"agb"},"expression":"exp(9.738 + 1.352 * ln((D/100)^2))","published":{"expression":"exp(9.738 + 1.352 * ln(Dap^2))","units":{"Dap":"m"},"variables":{"Dap":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Secondary montane forest trees, mixed species","group":"broadleaf"},"region":{"scope":"site","countries":["EC"],"place":"Cotacachi, Imbabura, NW Ecuador (1850 m a.s.l.)","biomes":["tropical","montane"]},"stand":"natural","fit":{"method":"regression on ln-transformed variables; coefficients as printed"},"evidence":[{"field":"expression","quote":"Bt = e^(9,738 + 1,352*ln(Dap²))","locator":"Tabla 4, p. 88 (total, 50-year)"}],"check":[{"inputs":{"D":10},"expected":33.5089,"origin":"computed","note":"hand-computed from the published form (Dap in m)"},{"inputs":{"D":25},"expected":399.199,"origin":"computed","note":"hand-computed from the published form (Dap in m)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap is in metres in the paper (Tabla 4 footnote), Ht in m, biomass in kg; printed as e^(a + b*ln(...)), natural log, no correction factor stated. Per-model adjusted R2 is in Tabla 4 but it is adjusted R2 and the per-model n is not stated, so both left out. Total = stem + branches + leaves. Stand age approx. (owner information)."},{"id":"ramirez-2022-age50-agb-d2h","source":"ramirez-2022","name":"Total aboveground biomass, 50-year secondary montane forest, DAP²·Ht","output":{"quantity":"agb"},"expression":"exp(6.129 + 1.022 * ln((D/100)^2*H))","published":{"expression":"exp(6.129 + 1.022 * ln(Dap^2*Ht))","units":{"Dap":"m","Ht":"m"},"variables":{"Dap":"D","Ht":"H"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Secondary montane forest trees, mixed species","group":"broadleaf"},"region":{"scope":"site","countries":["EC"],"place":"Cotacachi, Imbabura, NW Ecuador (1850 m a.s.l.)","biomes":["tropical","montane"]},"stand":"natural","fit":{"method":"regression on ln-transformed variables; coefficients as printed"},"evidence":[{"field":"expression","quote":"Bt = e^(6,129 + 1,022*ln(Dap²Ht))","locator":"Tabla 4, p. 88 (total, 50-year)"}],"check":[{"inputs":{"D":10,"H":8},"expected":34.7335,"origin":"computed","note":"hand-computed from the published form (Dap in m)"},{"inputs":{"D":25,"H":15},"expected":429.6804,"origin":"computed","note":"hand-computed from the published form (Dap in m)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap is in metres in the paper (Tabla 4 footnote), Ht in m, biomass in kg; printed as e^(a + b*ln(...)), natural log, no correction factor stated. Per-model adjusted R2 is in Tabla 4 but it is adjusted R2 and the per-model n is not stated, so both left out. Total = stem + branches + leaves. Stand age approx. (owner information)."},{"id":"ramirez-2022-age50-branch-d2","source":"ramirez-2022","name":"Branch biomass, 50-year secondary montane forest, DAP² only","output":{"quantity":"branch_biomass"},"expression":"exp(8.173 + 1.352 * ln((D/100)^2))","published":{"expression":"exp(8.173 + 1.352 * ln(Dap^2))","units":{"Dap":"m"},"variables":{"Dap":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Secondary montane forest trees, mixed species","group":"broadleaf"},"region":{"scope":"site","countries":["EC"],"place":"Cotacachi, Imbabura, NW Ecuador (1850 m a.s.l.)","biomes":["tropical","montane"]},"stand":"natural","fit":{"method":"regression on ln-transformed variables; coefficients as printed"},"evidence":[{"field":"expression","quote":"Br = e^(8,173 + 1,352*ln(Dap²))","locator":"Tabla 4, p. 88 (ramas, 50-year)"}],"check":[{"inputs":{"D":10},"expected":7.0063,"origin":"computed","note":"hand-computed from the published form (Dap in m)"},{"inputs":{"D":25},"expected":83.4677,"origin":"computed","note":"hand-computed from the published form (Dap in m)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap is in metres in the paper (Tabla 4 footnote), Ht in m, biomass in kg; printed as e^(a + b*ln(...)), natural log, no correction factor stated. Per-model adjusted R2 is in Tabla 4 but it is adjusted R2 and the per-model n is not stated, so both left out. Total = stem + branches + leaves. Stand age approx. (owner information)."},{"id":"ramirez-2022-age50-branch-d2h","source":"ramirez-2022","name":"Branch biomass, 50-year secondary montane forest, DAP²·Ht","output":{"quantity":"branch_biomass"},"expression":"exp(4.565 + 1.022 * ln((D/100)^2*H))","published":{"expression":"exp(4.565 + 1.022 * ln(Dap^2*Ht))","units":{"Dap":"m","Ht":"m"},"variables":{"Dap":"D","Ht":"H"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Secondary montane forest trees, mixed species","group":"broadleaf"},"region":{"scope":"site","countries":["EC"],"place":"Cotacachi, Imbabura, NW Ecuador (1850 m a.s.l.)","biomes":["tropical","montane"]},"stand":"natural","fit":{"method":"regression on ln-transformed variables; coefficients as printed"},"evidence":[{"field":"expression","quote":"Br = e^(4,565 + 1,022*ln(Dap²Ht))","locator":"Tabla 4, p. 88 (ramas, 50-year)"}],"check":[{"inputs":{"D":10,"H":8},"expected":7.2696,"origin":"computed","note":"hand-computed from the published form (Dap in m)"},{"inputs":{"D":25,"H":15},"expected":89.9309,"origin":"computed","note":"hand-computed from the published form (Dap in m)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap is in metres in the paper (Tabla 4 footnote), Ht in m, biomass in kg; printed as e^(a + b*ln(...)), natural log, no correction factor stated. Per-model adjusted R2 is in Tabla 4 but it is adjusted R2 and the per-model n is not stated, so both left out. Total = stem + branches + leaves. Stand age approx. (owner information)."},{"id":"ramirez-2022-age50-foliage-d2","source":"ramirez-2022","name":"Foliage biomass, 50-year secondary montane forest, DAP² only","output":{"quantity":"foliage_biomass"},"expression":"exp(6.857 + 1.357 * ln((D/100)^2))","published":{"expression":"exp(6.857 + 1.357 * ln(Dap^2))","units":{"Dap":"m"},"variables":{"Dap":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Secondary montane forest trees, mixed species","group":"broadleaf"},"region":{"scope":"site","countries":["EC"],"place":"Cotacachi, Imbabura, NW Ecuador (1850 m a.s.l.)","biomes":["tropical","montane"]},"stand":"natural","fit":{"method":"regression on ln-transformed variables; coefficients as printed"},"evidence":[{"field":"expression","quote":"Bh = e^(6,857 + 1,357*ln(Dap²))","locator":"Tabla 4, p. 88 (hojas, 50-year)"}],"check":[{"inputs":{"D":10},"expected":1.8364,"origin":"computed","note":"hand-computed from the published form (Dap in m)"},{"inputs":{"D":25},"expected":22.0783,"origin":"computed","note":"hand-computed from the published form (Dap in m)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap is in metres in the paper (Tabla 4 footnote), Ht in m, biomass in kg; printed as e^(a + b*ln(...)), natural log, no correction factor stated. Per-model adjusted R2 is in Tabla 4 but it is adjusted R2 and the per-model n is not stated, so both left out. Total = stem + branches + leaves. Stand age approx. (owner information)."},{"id":"ramirez-2022-age50-foliage-d2h","source":"ramirez-2022","name":"Foliage biomass, 50-year secondary montane forest, DAP²·Ht","output":{"quantity":"foliage_biomass"},"expression":"exp(3.236 + 1.027 * ln((D/100)^2*H))","published":{"expression":"exp(3.236 + 1.027 * ln(Dap^2*Ht))","units":{"Dap":"m","Ht":"m"},"variables":{"Dap":"D","Ht":"H"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Secondary montane forest trees, mixed species","group":"broadleaf"},"region":{"scope":"site","countries":["EC"],"place":"Cotacachi, Imbabura, NW Ecuador (1850 m a.s.l.)","biomes":["tropical","montane"]},"stand":"natural","fit":{"method":"regression on ln-transformed variables; coefficients as printed"},"evidence":[{"field":"expression","quote":"Bh = e^(3,236 + 1,027*ln(Dap²Ht))","locator":"Tabla 4, p. 88 (hojas, 50-year)"}],"check":[{"inputs":{"D":10,"H":8},"expected":1.9004,"origin":"computed","note":"hand-computed from the published form (Dap in m)"},{"inputs":{"D":25,"H":15},"expected":23.8008,"origin":"computed","note":"hand-computed from the published form (Dap in m)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap is in metres in the paper (Tabla 4 footnote), Ht in m, biomass in kg; printed as e^(a + b*ln(...)), natural log, no correction factor stated. Per-model adjusted R2 is in Tabla 4 but it is adjusted R2 and the per-model n is not stated, so both left out. Total = stem + branches + leaves. Stand age approx. (owner information)."},{"id":"ramirez-2022-age50-stem-d2","source":"ramirez-2022","name":"Stem biomass, 50-year secondary montane forest, DAP² only","output":{"quantity":"stem_biomass"},"expression":"exp(9.420 + 1.349 * ln((D/100)^2))","published":{"expression":"exp(9.420 + 1.349 * ln(Dap^2))","units":{"Dap":"m"},"variables":{"Dap":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Secondary montane forest trees, mixed species","group":"broadleaf"},"region":{"scope":"site","countries":["EC"],"place":"Cotacachi, Imbabura, NW Ecuador (1850 m a.s.l.)","biomes":["tropical","montane"]},"stand":"natural","fit":{"method":"regression on ln-transformed variables; coefficients as printed"},"evidence":[{"field":"expression","quote":"Bf = e^(9,420 + 1,349*ln(Dap²))","locator":"Tabla 4, p. 88 (fuste, 50-year)"}],"check":[{"inputs":{"D":10},"expected":24.7203,"origin":"computed","note":"hand-computed from the published form (Dap in m)"},{"inputs":{"D":25},"expected":292.8843,"origin":"computed","note":"hand-computed from the published form (Dap in m)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap is in metres in the paper (Tabla 4 footnote), Ht in m, biomass in kg; printed as e^(a + b*ln(...)), natural log, no correction factor stated. Per-model adjusted R2 is in Tabla 4 but it is adjusted R2 and the per-model n is not stated, so both left out. Total = stem + branches + leaves. Stand age approx. (owner information)."},{"id":"ramirez-2022-age50-stem-d2h","source":"ramirez-2022","name":"Stem biomass, 50-year secondary montane forest, DAP²·Ht","output":{"quantity":"stem_biomass"},"expression":"exp(5.820 + 1.020 * ln((D/100)^2*H))","published":{"expression":"exp(5.820 + 1.020 * ln(Dap^2*Ht))","units":{"Dap":"m","Ht":"m"},"variables":{"Dap":"D","Ht":"H"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Secondary montane forest trees, mixed species","group":"broadleaf"},"region":{"scope":"site","countries":["EC"],"place":"Cotacachi, Imbabura, NW Ecuador (1850 m a.s.l.)","biomes":["tropical","montane"]},"stand":"natural","fit":{"method":"regression on ln-transformed variables; coefficients as printed"},"evidence":[{"field":"expression","quote":"Bf = e^(5,820 + 1,020*ln(Dap²Ht))","locator":"Tabla 4, p. 88 (fuste, 50-year)"}],"check":[{"inputs":{"D":10,"H":8},"expected":25.6298,"origin":"computed","note":"hand-computed from the published form (Dap in m)"},{"inputs":{"D":25,"H":15},"expected":315.5038,"origin":"computed","note":"hand-computed from the published form (Dap in m)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap is in metres in the paper (Tabla 4 footnote), Ht in m, biomass in kg; printed as e^(a + b*ln(...)), natural log, no correction factor stated. Per-model adjusted R2 is in Tabla 4 but it is adjusted R2 and the per-model n is not stated, so both left out. Total = stem + branches + leaves. Stand age approx. (owner information)."},{"id":"ramirez-2022-general-agb-d2","source":"ramirez-2022","name":"Total aboveground biomass, all ages pooled (general) secondary montane forest, DAP² only","output":{"quantity":"agb"},"expression":"exp(9.292 + 1.316 * ln((D/100)^2))","published":{"expression":"exp(9.292 + 1.316 * ln(Dap^2))","units":{"Dap":"m"},"variables":{"Dap":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Secondary montane forest trees, mixed species","group":"broadleaf"},"region":{"scope":"site","countries":["EC"],"place":"Cotacachi, Imbabura, NW Ecuador (1850 m a.s.l.)","biomes":["tropical","montane"]},"stand":"natural","fit":{"method":"regression on ln-transformed variables; coefficients as printed"},"evidence":[{"field":"expression","quote":"Bt = e^(9,292 + 1,316*ln(Dap²))","locator":"Tabla 4, p. 88 (total, General)"}],"check":[{"inputs":{"D":10},"expected":25.32,"origin":"computed","note":"hand-computed from the published form (Dap in m)"},{"inputs":{"D":25},"expected":282.3855,"origin":"computed","note":"hand-computed from the published form (Dap in m)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap is in metres in the paper (Tabla 4 footnote), Ht in m, biomass in kg; printed as e^(a + b*ln(...)), natural log, no correction factor stated. Per-model adjusted R2 is in Tabla 4 but it is adjusted R2 and the per-model n is not stated, so both left out. Total = stem + branches + leaves."},{"id":"ramirez-2022-general-agb-d2h","source":"ramirez-2022","name":"Total aboveground biomass, all ages pooled (general) secondary montane forest, DAP²·Ht","output":{"quantity":"agb"},"expression":"exp(6.020 + 1.040 * ln((D/100)^2*H))","published":{"expression":"exp(6.020 + 1.040 * ln(Dap^2*Ht))","units":{"Dap":"m","Ht":"m"},"variables":{"Dap":"D","Ht":"H"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Secondary montane forest trees, mixed species","group":"broadleaf"},"region":{"scope":"site","countries":["EC"],"place":"Cotacachi, Imbabura, NW Ecuador (1850 m a.s.l.)","biomes":["tropical","montane"]},"stand":"natural","fit":{"method":"regression on ln-transformed variables; coefficients as printed"},"evidence":[{"field":"expression","quote":"Bt = e^(6,020 + 1,040*ln(Dap²Ht))","locator":"Tabla 4, p. 88 (total, General)"}],"check":[{"inputs":{"D":10,"H":8},"expected":29.7623,"origin":"computed","note":"hand-computed from the published form (Dap in m)"},{"inputs":{"D":25,"H":15},"expected":384.8601,"origin":"computed","note":"hand-computed from the published form (Dap in m)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap is in metres in the paper (Tabla 4 footnote), Ht in m, biomass in kg; printed as e^(a + b*ln(...)), natural log, no correction factor stated. Per-model adjusted R2 is in Tabla 4 but it is adjusted R2 and the per-model n is not stated, so both left out. Total = stem + branches + leaves."},{"id":"ramirez-2022-general-branch-d2","source":"ramirez-2022","name":"Branch biomass, all ages pooled (general) secondary montane forest, DAP² only","output":{"quantity":"branch_biomass"},"expression":"exp(7.783 + 1.302 * ln((D/100)^2))","published":{"expression":"exp(7.783 + 1.302 * ln(Dap^2))","units":{"Dap":"m"},"variables":{"Dap":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Secondary montane forest trees, mixed species","group":"broadleaf"},"region":{"scope":"site","countries":["EC"],"place":"Cotacachi, Imbabura, NW Ecuador (1850 m a.s.l.)","biomes":["tropical","montane"]},"stand":"natural","fit":{"method":"regression on ln-transformed variables; coefficients as printed"},"evidence":[{"field":"expression","quote":"Br = e^(7,783 + 1,302*ln(Dap²))","locator":"Tabla 4, p. 88 (ramas, General)"}],"check":[{"inputs":{"D":10},"expected":5.9719,"origin":"computed","note":"hand-computed from the published form (Dap in m)"},{"inputs":{"D":25},"expected":64.9157,"origin":"computed","note":"hand-computed from the published form (Dap in m)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap is in metres in the paper (Tabla 4 footnote), Ht in m, biomass in kg; printed as e^(a + b*ln(...)), natural log, no correction factor stated. Per-model adjusted R2 is in Tabla 4 but it is adjusted R2 and the per-model n is not stated, so both left out. Total = stem + branches + leaves."},{"id":"ramirez-2022-general-branch-d2h","source":"ramirez-2022","name":"Branch biomass, all ages pooled (general) secondary montane forest, DAP²·Ht","output":{"quantity":"branch_biomass"},"expression":"exp(4.441 + 1.009 * ln((D/100)^2*H))","published":{"expression":"exp(4.441 + 1.009 * ln(Dap^2*Ht))","units":{"Dap":"m","Ht":"m"},"variables":{"Dap":"D","Ht":"H"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Secondary montane forest trees, mixed species","group":"broadleaf"},"region":{"scope":"site","countries":["EC"],"place":"Cotacachi, Imbabura, NW Ecuador (1850 m a.s.l.)","biomes":["tropical","montane"]},"stand":"natural","fit":{"method":"regression on ln-transformed variables; coefficients as printed"},"evidence":[{"field":"expression","quote":"Br = e^(4,441 + 1,009*ln(Dap²Ht))","locator":"Tabla 4, p. 88 (ramas, General)"}],"check":[{"inputs":{"D":10,"H":8},"expected":6.6362,"origin":"computed","note":"hand-computed from the published form (Dap in m)"},{"inputs":{"D":25,"H":15},"expected":79.5098,"origin":"computed","note":"hand-computed from the published form (Dap in m)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap is in metres in the paper (Tabla 4 footnote), Ht in m, biomass in kg; printed as e^(a + b*ln(...)), natural log, no correction factor stated. Per-model adjusted R2 is in Tabla 4 but it is adjusted R2 and the per-model n is not stated, so both left out. Total = stem + branches + leaves."},{"id":"ramirez-2022-general-foliage-d2","source":"ramirez-2022","name":"Foliage biomass, all ages pooled (general) secondary montane forest, DAP² only","output":{"quantity":"foliage_biomass"},"expression":"exp(6.432 + 1.276 * ln((D/100)^2))","published":{"expression":"exp(6.432 + 1.276 * ln(Dap^2))","units":{"Dap":"m"},"variables":{"Dap":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Secondary montane forest trees, mixed species","group":"broadleaf"},"region":{"scope":"site","countries":["EC"],"place":"Cotacachi, Imbabura, NW Ecuador (1850 m a.s.l.)","biomes":["tropical","montane"]},"stand":"natural","fit":{"method":"regression on ln-transformed variables; coefficients as printed"},"evidence":[{"field":"expression","quote":"Bh = e^(6,432 + 1,276*ln(Dap²))","locator":"Tabla 4, p. 88 (hojas, General)"}],"check":[{"inputs":{"D":10},"expected":1.7433,"origin":"computed","note":"hand-computed from the published form (Dap in m)"},{"inputs":{"D":25},"expected":18.0686,"origin":"computed","note":"hand-computed from the published form (Dap in m)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap is in metres in the paper (Tabla 4 footnote), Ht in m, biomass in kg; printed as e^(a + b*ln(...)), natural log, no correction factor stated. Per-model adjusted R2 is in Tabla 4 but it is adjusted R2 and the per-model n is not stated, so both left out. Total = stem + branches + leaves."},{"id":"ramirez-2022-general-foliage-d2h","source":"ramirez-2022","name":"Foliage biomass, all ages pooled (general) secondary montane forest, DAP²·Ht","output":{"quantity":"foliage_biomass"},"expression":"exp(3.158 + 0.990 * ln((D/100)^2*H))","published":{"expression":"exp(3.158 + 0.990 * ln(Dap^2*Ht))","units":{"Dap":"m","Ht":"m"},"variables":{"Dap":"D","Ht":"H"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Secondary montane forest trees, mixed species","group":"broadleaf"},"region":{"scope":"site","countries":["EC"],"place":"Cotacachi, Imbabura, NW Ecuador (1850 m a.s.l.)","biomes":["tropical","montane"]},"stand":"natural","fit":{"method":"regression on ln-transformed variables; coefficients as printed"},"evidence":[{"field":"expression","quote":"Bh = e^(3,158 + 0,990*ln(Dap²Ht))","locator":"Tabla 4, p. 88 (hojas, General)"}],"check":[{"inputs":{"D":10,"H":8},"expected":1.93,"origin":"computed","note":"hand-computed from the published form (Dap in m)"},{"inputs":{"D":25,"H":15},"expected":22.0675,"origin":"computed","note":"hand-computed from the published form (Dap in m)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap is in metres in the paper (Tabla 4 footnote), Ht in m, biomass in kg; printed as e^(a + b*ln(...)), natural log, no correction factor stated. Per-model adjusted R2 is in Tabla 4 but it is adjusted R2 and the per-model n is not stated, so both left out. Total = stem + branches + leaves."},{"id":"ramirez-2022-general-stem-d2","source":"ramirez-2022","name":"Stem biomass, all ages pooled (general) secondary montane forest, DAP² only","output":{"quantity":"stem_biomass"},"expression":"exp(8.966 + 1.326 * ln((D/100)^2))","published":{"expression":"exp(8.966 + 1.326 * ln(Dap^2))","units":{"Dap":"m"},"variables":{"Dap":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Secondary montane forest trees, mixed species","group":"broadleaf"},"region":{"scope":"site","countries":["EC"],"place":"Cotacachi, Imbabura, NW Ecuador (1850 m a.s.l.)","biomes":["tropical","montane"]},"stand":"natural","fit":{"method":"regression on ln-transformed variables; coefficients as printed"},"evidence":[{"field":"expression","quote":"Bf = e^(8,966 + 1,326*ln(Dap²))","locator":"Tabla 4, p. 88 (fuste, General)"}],"check":[{"inputs":{"D":10},"expected":17.4536,"origin":"computed","note":"hand-computed from the published form (Dap in m)"},{"inputs":{"D":25},"expected":198.2537,"origin":"computed","note":"hand-computed from the published form (Dap in m)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap is in metres in the paper (Tabla 4 footnote), Ht in m, biomass in kg; printed as e^(a + b*ln(...)), natural log, no correction factor stated. Per-model adjusted R2 is in Tabla 4 but it is adjusted R2 and the per-model n is not stated, so both left out. Total = stem + branches + leaves."},{"id":"ramirez-2022-general-stem-d2h","source":"ramirez-2022","name":"Stem biomass, all ages pooled (general) secondary montane forest, DAP²·Ht","output":{"quantity":"stem_biomass"},"expression":"exp(5.565 + 1.028 * ln((D/100)^2*H))","published":{"expression":"exp(5.565 + 1.028 * ln(Dap^2*Ht))","units":{"Dap":"m","Ht":"m"},"variables":{"Dap":"D","Ht":"H"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Secondary montane forest trees, mixed species","group":"broadleaf"},"region":{"scope":"site","countries":["EC"],"place":"Cotacachi, Imbabura, NW Ecuador (1850 m a.s.l.)","biomes":["tropical","montane"]},"stand":"natural","fit":{"method":"regression on ln-transformed variables; coefficients as printed"},"evidence":[{"field":"expression","quote":"Bf = e^(5,565 + 1,028*ln(Dap²Ht))","locator":"Tabla 4, p. 88 (fuste, General)"}],"check":[{"inputs":{"D":10,"H":8},"expected":19.4637,"origin":"computed","note":"hand-computed from the published form (Dap in m)"},{"inputs":{"D":25,"H":15},"expected":244.3629,"origin":"computed","note":"hand-computed from the published form (Dap in m)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap is in metres in the paper (Tabla 4 footnote), Ht in m, biomass in kg; printed as e^(a + b*ln(...)), natural log, no correction factor stated. Per-model adjusted R2 is in Tabla 4 but it is adjusted R2 and the per-model n is not stated, so both left out. Total = stem + branches + leaves."},{"id":"ramirez-pelaez-2018-polylepis-incana","source":"ramirez-pelaez-2018","name":"Polylepis incana AGB from DBH (Tabla 4, power form)","output":{"quantity":"agb"},"expression":"0.118 * D^2.0078","published":{"expression":"0.118 * DAP^2.0078","units":{"DAP":"cm"},"variables":{"DAP":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Polylepis incana","family":"Rosaceae","group":"broadleaf"},"region":{"scope":"site","countries":["PE"],"place":"Poccrac, Ticapampa district (Recuay), Áncash, Peru; native high-Andean Polylepis forest","biomes":["tropical","montane"]},"stand":"natural","fit":{"n_trees":15,"dbh_min_cm":5,"dbh_max_cm":20,"r2":0.936,"method":"OLS on ln(M) vs ln(DAP) in SPSS 22, back-transformed without correction factor"},"evidence":[{"field":"expression","quote":"Polylepis incana M = 0,118 DAP2.0078","locator":"Tabla 4, p. 112 (exponent printed as superscript)"},{"field":"fit.r2","quote":"Polylepis incana -2,137 2,0078 15 0,968 0,936 0,929 0,043","locator":"Tabla 3, p. 112 (LNB, A, N, r, r², r² corregido, error tipo residual)"},{"field":"fit.n_trees","quote":"han sido diseñadas a partir de 15 datos","locator":"Resumen, p. 105"},{"field":"fit.dbh_min_cm","quote":"La medida del DAP de los árboles de Polylepis seleccionados están dentro del rango que va desde 5 cm a 20cm.","locator":"Resumen, p. 105"}],"check":[{"inputs":{"D":11.2},"expected":15.0835,"origin":"computed","note":"computed from the published power form; Tabla 1 tree 1 (DAP 11,2 cm) weighed 16,5 kg"},{"inputs":{"D":18},"expected":39.1037,"origin":"computed","note":"computed from the published power form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"M is aboveground biomass in kg (Tabla 1 header 'M (Kg)'). Trees were air-dried in shade to constant weight (about 8 weeks), not oven-dried, so 'dry' mass may be slightly high. The linear form in Tabla 4 prints 'Ln(M) = -2,371 + 2,0078Ln(DAP)', which conflicts with Tabla 3 (LNB = -2,137) and with 0,118 = exp(-2,137); the power form is used here. The harvested trees in Tabla 1 span DAP 6,0–18,0 cm; 5–20 cm is the range the authors state. No log-bias correction factor applied by the authors. Same data republished in Rev. Tayacaja 1(1):17-27 (2018)."},{"id":"ramirez-pelaez-2018-polylepis-sericea","source":"ramirez-pelaez-2018","name":"Polylepis sericea AGB from DBH (Tabla 4, power form)","output":{"quantity":"agb"},"expression":"0.1135 * D^2.025","published":{"expression":"0.1135 * DAP^2.025","units":{"DAP":"cm"},"variables":{"DAP":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Polylepis sericea","family":"Rosaceae","group":"broadleaf"},"region":{"scope":"site","countries":["PE"],"place":"Poccrac, Ticapampa district (Recuay), Áncash, Peru; native high-Andean Polylepis forest","biomes":["tropical","montane"]},"stand":"natural","fit":{"n_trees":15,"dbh_min_cm":5,"dbh_max_cm":20,"r2":0.941,"method":"OLS on ln(M) vs ln(DAP) in SPSS 22, back-transformed without correction factor"},"evidence":[{"field":"expression","quote":"Ploylepis sericea M = 0.1135 DAP2.025","locator":"Tabla 4, p. 112 (species name misspelt in the table; exponent printed as superscript)"},{"field":"expression","quote":"Ln(M) = -2.1757+ 2.025 Ln(DAP)","locator":"Tabla 4, p. 112"},{"field":"fit.r2","quote":"Polylepis sericea -2.1757 2,0250 15 0,970 0,941 0,934 0,041","locator":"Tabla 3, p. 112"},{"field":"fit.dbh_min_cm","quote":"La medida del DAP de los árboles de Polylepis seleccionados están dentro del rango que va desde 5 cm a 20cm.","locator":"Resumen, p. 105"}],"check":[{"inputs":{"D":12},"expected":17.3915,"origin":"computed","note":"computed from the published power form; Tabla 2 tree 2 (DAP 12,0 cm) weighed 17,0 kg"},{"inputs":{"D":18},"expected":39.5296,"origin":"computed","note":"computed from the published power form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"M is aboveground biomass in kg. Trees were air-dried in shade to constant weight, not oven-dried. Harvested trees in Tabla 2 span DAP 5,8–18,0 cm. No log-bias correction factor applied by the authors."},{"id":"ramos-veintimilla-2025-branch","source":"ramos-veintimilla-2025","name":"Branch biomass, Eucalyptus saligna young plantation, dbh only","output":{"quantity":"branch_biomass"},"expression":"exp(-3.63 + 2.37 * ln(D))","published":{"expression":"exp(-3.63 + 2.37 * ln(dbh))","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Eucalyptus saligna","family":"Myrtaceae","group":"broadleaf"},"region":{"scope":"site","countries":["EC"],"place":"Tunshi Experimental Station, ESPOCH, Chimborazo (Lower Montane thorny steppe)","biomes":["subtropical","montane"]},"stand":"plantation","fit":{"n_trees":46,"dbh_min_cm":5.9,"dbh_max_cm":21,"h_min_m":5.4,"h_max_m":14.8,"r2":0.6,"method":"OLS on Ln(B) vs Ln(dbh); no correction factor applied"},"evidence":[{"field":"expression","quote":"Ln(B) = −3.63 + 2.37∗Ln(dbh)","locator":"Table 2"},{"field":"fit.n_trees","quote":"the research involved 46 trees","locator":"Abstract"},{"field":"fit.dbh_min_cm","quote":"These trees had a dbh between 5.9 and 21.0 cm and 5.4 to 14.8 m of total height (ht).","locator":"Materials and Methods"}],"check":[{"inputs":{"D":8},"expected":3.663,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":15},"expected":16.2498,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Ln is the natural log as printed. Published without correction factor (Table 3 compares with and without CF; the authors give the model without CF, so none is applied). dbh in cm, biomass in kg/tree."},{"id":"ramos-veintimilla-2025-foliage","source":"ramos-veintimilla-2025","name":"Leaf biomass, Eucalyptus saligna young plantation, dbh only","output":{"quantity":"foliage_biomass"},"expression":"exp(-2.61 + 1.86 * ln(D))","published":{"expression":"exp(-2.61 + 1.86 * ln(dbh))","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Eucalyptus saligna","family":"Myrtaceae","group":"broadleaf"},"region":{"scope":"site","countries":["EC"],"place":"Tunshi Experimental Station, ESPOCH, Chimborazo (Lower Montane thorny steppe)","biomes":["subtropical","montane"]},"stand":"plantation","fit":{"n_trees":46,"dbh_min_cm":5.9,"dbh_max_cm":21,"h_min_m":5.4,"h_max_m":14.8,"method":"OLS on Ln(B) vs Ln(dbh); no correction factor applied"},"evidence":[{"field":"expression","quote":"Ln(B) = −2.61 + 1.86∗Ln(dbh)","locator":"Table 2"},{"field":"fit.n_trees","quote":"the research involved 46 trees","locator":"Abstract"},{"field":"fit.dbh_min_cm","quote":"These trees had a dbh between 5.9 and 21.0 cm and 5.4 to 14.8 m of total height (ht).","locator":"Materials and Methods"}],"check":[{"inputs":{"D":8},"expected":3.5175,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":15},"expected":11.3246,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Ln is the natural log as printed. Published without correction factor (Table 3 compares with and without CF; the authors give the model without CF, so none is applied). dbh in cm, biomass in kg/tree. Table 2 prints R2 and adjusted R2 in a way that does not reconcile for this component, so r2 is left out."},{"id":"ramos-veintimilla-2025-stem","source":"ramos-veintimilla-2025","name":"Stem biomass, Eucalyptus saligna young plantation, dbh only","output":{"quantity":"stem_biomass"},"expression":"exp(-1.49 + 2.0 * ln(D))","published":{"expression":"exp(-1.49 + 2.0 * ln(dbh))","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Eucalyptus saligna","family":"Myrtaceae","group":"broadleaf"},"region":{"scope":"site","countries":["EC"],"place":"Tunshi Experimental Station, ESPOCH, Chimborazo (Lower Montane thorny steppe)","biomes":["subtropical","montane"]},"stand":"plantation","fit":{"n_trees":46,"dbh_min_cm":5.9,"dbh_max_cm":21,"h_min_m":5.4,"h_max_m":14.8,"method":"OLS on Ln(B) vs Ln(dbh); no correction factor applied"},"evidence":[{"field":"expression","quote":"Ln(B) = −1.49 + 2.00∗Ln(dbh)","locator":"Table 2"},{"field":"fit.n_trees","quote":"the research involved 46 trees","locator":"Abstract"},{"field":"fit.dbh_min_cm","quote":"These trees had a dbh between 5.9 and 21.0 cm and 5.4 to 14.8 m of total height (ht).","locator":"Materials and Methods"}],"check":[{"inputs":{"D":8},"expected":14.4238,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":15},"expected":50.7088,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Ln is the natural log as printed. Published without correction factor (Table 3 compares with and without CF; the authors give the model without CF, so none is applied). dbh in cm, biomass in kg/tree. Table 2 prints R2 and adjusted R2 in a way that does not reconcile for this component, so r2 is left out."},{"id":"ramos-veintimilla-2025-total","source":"ramos-veintimilla-2025","name":"Total aboveground biomass, Eucalyptus saligna young plantation, dbh only","output":{"quantity":"agb"},"expression":"exp(-0.952 + 1.97 * ln(D))","published":{"expression":"exp(-0.952 + 1.97 * ln(dbh))","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Eucalyptus saligna","family":"Myrtaceae","group":"broadleaf"},"region":{"scope":"site","countries":["EC"],"place":"Tunshi Experimental Station, ESPOCH, Chimborazo (Lower Montane thorny steppe)","biomes":["subtropical","montane"]},"stand":"plantation","fit":{"n_trees":46,"dbh_min_cm":5.9,"dbh_max_cm":21,"h_min_m":5.4,"h_max_m":14.8,"r2":0.8,"method":"OLS on Ln(B) vs Ln(dbh); no correction factor applied"},"evidence":[{"field":"expression","quote":"Ln(B) = −0.952 + 1.97∗Ln(dbh)","locator":"Table 2"},{"field":"fit.n_trees","quote":"the research involved 46 trees","locator":"Abstract"},{"field":"fit.dbh_min_cm","quote":"These trees had a dbh between 5.9 and 21.0 cm and 5.4 to 14.8 m of total height (ht).","locator":"Materials and Methods"}],"check":[{"inputs":{"D":8},"expected":23.2081,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":15},"expected":80.0666,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Ln is the natural log as printed. Published without correction factor (Table 3 compares with and without CF; the authors give the model without CF, so none is applied). dbh in cm, biomass in kg/tree."},{"id":"repola-2008-betula-total","source":"repola-2008","name":"Birch total above-ground biomass excluding foliage, Model 1a (Eq. 11)","output":{"quantity":"agb","excludes":["foliage"]},"expression":"exp(-3.654 + 10.582 * (2 + 1.25*D)/((2 + 1.25*D) + 12) + 3.018 * H/(H + 22) + (0.00068 + 0.00727)/2)","published":{"expression":"exp(-3.654 + 10.582 * (2 + 1.25*d)/((2 + 1.25*d) + 12) + 3.018 * h/(h + 22) + (0.00068 + 0.00727)/2)","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"genus","name":"Betula","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"national","countries":["FI"],"place":"Finland, mineral-soil stands (mostly southern and central Finland)","biomes":["boreal","temperate"]},"stand":"mixed","fit":{"n_trees":127,"dbh_min_cm":2.5,"dbh_max_cm":38,"cf":1.00398,"method":"Multivariate linear mixed model on ln(biomass) with stand random effects (fitted jointly with component equations); fixed part shown, with variance correction (var(u)+var(e))/2 added to the intercept"},"evidence":[{"field":"expression","quote":"ln(yki) = b0 + b1 dSki/(dSki + 12) + b2 hki/(hki + 22) + u5k + e5ki","locator":"Eq. 11, p. 612"},{"field":"expression","quote":"Total above-ground Eq. (11) N = 127 b0 –3.654 b1 10.582 b2 3.018; u5k 0.00068; e5ki 0.00727","locator":"Table 4, p. 613"},{"field":"expression","quote":"dSki = 2 + 1.25 dki","locator":"variable definitions"},{"field":"fit.cf","quote":"a variance correction term, (σu² + σe²)/2 … should be added to the intercept","locator":"Section 2.4 (2009) / Section 3 (2008)"}],"check":[{"inputs":{"D":20,"H":18},"expected":153.5575,"origin":"computed","note":"computed from the published form (with variance correction) at d = 20 cm, h = 18 m"}],"verification":"original_read","checked_at":"2026-11-01","notes":"B. pendula (66% of sample trees) and B. pubescens (34%) pooled. The paper states foliage biomass was not included in the total above-ground biomass, so this is AGB of stem, bark and living + dead branches without leaves. Variance correction (0.00068+0.00727)/2 added to the intercept in both forms. Sanity check: the uncorrected fixed part averaged over the four plot 4_11 trees of Table 7 gives 94.5 kg, matching Predfixed in Table 8."},{"id":"repola-2009-picea-abies-total","source":"repola-2009","name":"Norway spruce total above-ground biomass, Model 1c (Eq. 17)","output":{"quantity":"agb"},"expression":"exp(-1.808 + 9.482 * (2 + 1.25*D)/((2 + 1.25*D) + 20) + 0.469 * ln(H) + (0.006 + 0.013)/2)","published":{"expression":"exp(-1.808 + 9.482 * (2 + 1.25*d)/((2 + 1.25*d) + 20) + 0.469 * ln(h) + (0.006 + 0.013)/2)","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Picea abies","family":"Pinaceae","group":"conifer"},"region":{"scope":"national","countries":["FI"],"place":"Finland, mineral-soil stands (mostly southern and central Finland)","biomes":["boreal"]},"stand":"mixed","fit":{"n_trees":166,"cf":1.00955,"method":"Multivariate linear mixed model on ln(biomass) with stand random effects (fitted jointly with component equations); fixed part shown, with variance correction (var(u)+var(e))/2 added to the intercept"},"evidence":[{"field":"expression","quote":"ln(yki) = b0 + b1 dSki/(dSki + 20) + b2 ln(hki) + uk + eki","locator":"Eq. 17, p. 633"},{"field":"expression","quote":"Total Eq. 17 N = 166 b0 –1.808 b1 9.482 b2 0.469 var(uk) 0.006 var(eki) 0.013","locator":"Table 7, p. 634"},{"field":"expression","quote":"dSki = 2 + 1.25 dki","locator":"variable definitions"},{"field":"fit.cf","quote":"a variance correction term, (σu² + σe²)/2 … should be added to the intercept","locator":"Section 2.4 (2009) / Section 3 (2008)"}],"check":[{"inputs":{"D":20,"H":18},"expected":149.0364,"origin":"computed","note":"computed from the published form (with variance correction) at d = 20 cm, h = 18 m"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Total above-ground biomass of the stem wood, bark, living and dead branches and needles. dS = 2 + 1.25d. Variance correction (0.006+0.013)/2 = 0.0095 added to the intercept in both forms. Sample trees spanned d 1.7–41.7 cm and h 2.1–35.0 m (Table 3, all 613 trees); the total equation used 166 trees, so no fit range is stated. Mineral-soil stands, Finland."},{"id":"repola-2009-pinus-sylvestris-total","source":"repola-2009","name":"Scots pine total above-ground biomass, Model 1a (Eq. 9)","output":{"quantity":"agb"},"expression":"exp(-3.198 + 9.547 * (2 + 1.25*D)/((2 + 1.25*D) + 12) + 3.241 * H/(H + 20) + (0.009 + 0.010)/2)","published":{"expression":"exp(-3.198 + 9.547 * (2 + 1.25*d)/((2 + 1.25*d) + 12) + 3.241 * h/(h + 20) + (0.009 + 0.010)/2)","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus sylvestris","family":"Pinaceae","group":"conifer"},"region":{"scope":"national","countries":["FI"],"place":"Finland, mineral-soil stands (mostly southern and central Finland)","biomes":["boreal"]},"stand":"mixed","fit":{"n_trees":285,"cf":1.00955,"method":"Multivariate linear mixed model on ln(biomass) with stand random effects (fitted jointly with component equations); fixed part shown, with variance correction (var(u)+var(e))/2 added to the intercept"},"evidence":[{"field":"expression","quote":"ln(yki) = b0 + b1 dSki/(dSki + 12) + b2 hki/(hki + 20) + uk + eki","locator":"Eq. 9, p. 631"},{"field":"expression","quote":"Total Eq. 9 N = 285 b0 –3.198 b1 9.547 b2 3.241 var(uk) 0.009 var(eki) 0.010","locator":"Table 5, p. 632"},{"field":"expression","quote":"dSki = 2 + 1.25 dki","locator":"variable definitions"},{"field":"fit.cf","quote":"a variance correction term, (σu² + σe²)/2 … should be added to the intercept","locator":"Section 2.4 (2009) / Section 3 (2008)"}],"check":[{"inputs":{"D":20,"H":18},"expected":142.049,"origin":"computed","note":"computed from the published form (with variance correction) at d = 20 cm, h = 18 m"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Total above-ground biomass of the stem wood, bark, living and dead branches and needles. dS = 2 + 1.25d is a transformation of dbh (cm), not a stump diameter. The variance correction (var(uk)+var(eki))/2 = 0.0095 is added to the intercept as the paper prescribes, in both published and canonical forms. Sample trees spanned d 1.5–35.8 cm and h 2.0–28.6 m (Table 3, all 908 trees); the total equation used a subset of 285 trees, so no fit range is stated. Mineral-soil stands, Finland."},{"id":"repola-2014-agb-birch","source":"repola-2014","name":"Birch aboveground biomass, young dense stands, N Sweden (Table 5)","output":{"quantity":"agb"},"expression":"exp(-4.074 + (0.002 + 0.018) / 2 + 7.970 * D / (D + 3) + (16.922) * H / (H + 10) + (-3.210) * ln(H))","published":{"expression":"exp(-4.074 + (0.002 + 0.018) / 2 + 7.970 * dbh / (dbh + 3) + (16.922) * h / (h + 10) + (-3.210) * ln(h))","units":{"dbh":"cm","h":"m"},"variables":{"dbh":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"genus","name":"Betula","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["SE"],"place":"Six young, dense, naturally regenerated stands in northern Sweden (63.26-65.69 N)","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":86,"dbh_min_cm":1,"dbh_max_cm":11,"h_min_m":1.8,"h_max_m":8.6,"method":"linear mixed model of ln(biomass) with random stand effect; ln(y) = Intercept + b1 dbh/(dbh + n) + b2 h/(h + m) + b3 ln(h)"},"evidence":[{"field":"expression","quote":"Total above-ground, kg, birch: Intercept −4.074; dbh/(dbh + n) 7.970; h/(h + m) 16.922; ln(h) −3.210; n 3; m 10; var(uk) 0.002; var(eki) 0.018","locator":"Table 5, p. 12"},{"field":"expression","quote":"a variance correction term, ((var(uk) + var(eki))/2) should be added to the intercept to correct for bias due to the logarithmic transformation","locator":"Section 2.6, p. 10"},{"field":"fit.n_trees","quote":"In total, 280 trees were included in this destructive aboveground biomass study, of which 126 were pine, 68 spruce and 86 birch.","locator":"Section 2.4, p. 6"},{"field":"fit.dbh_max_cm","quote":"The range of dbh was 1–22 cm, 1–21 cm and 1–11 cm for pine, spruce and birch, respectively","locator":"Section 2.4, p. 6"},{"field":"fit.h_max_m","quote":"The range of heights was 1.7–11.7 m, 1.6–13.3 m and 1.8–8.6 m for pine, spruce and birch, respectively","locator":"Section 2.4, p. 6"}],"check":[{"inputs":{"D":5,"H":5},"expected":4.0214,"origin":"computed","note":"hand-computed from the Table 5 coefficients with the (var(u) + var(e))/2 intercept correction"},{"inputs":{"D":10,"H":8},"expected":18.4055,"origin":"computed","note":"hand-computed from the Table 5 coefficients with the (var(u) + var(e))/2 intercept correction"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Fitted on pine-dominated mixed stands; fit n, DBH and height ranges are the species sample ranges. Expression applies the paper's stated additive correction (var(uk) + var(eki))/2 to the intercept. Variance values are as printed in Table 5; no other correction factor is stated. The paper models the total independently of the components, so it need not equal their sum. Birch coefficients are for Betula pendula and B. pubescens pooled. "},{"id":"repola-2014-agb-pine","source":"repola-2014","name":"Scots pine aboveground biomass, young dense stands, N Sweden (Table 5)","output":{"quantity":"agb"},"expression":"exp(-2.274 + (0.002 + 0.030) / 2 + 9.302 * D / (D + 9) + (0.933) * H / (H + 16))","published":{"expression":"exp(-2.274 + (0.002 + 0.030) / 2 + 9.302 * dbh / (dbh + 9) + (0.933) * h / (h + 16))","units":{"dbh":"cm","h":"m"},"variables":{"dbh":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus sylvestris","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["SE"],"place":"Six young, dense, naturally regenerated stands in northern Sweden (63.26-65.69 N)","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":126,"dbh_min_cm":1,"dbh_max_cm":22,"h_min_m":1.7,"h_max_m":11.7,"method":"linear mixed model of ln(biomass) with random stand effect; ln(y) = Intercept + b1 dbh/(dbh + n) + b2 h/(h + m)"},"evidence":[{"field":"expression","quote":"Total above-ground, kg, Scots pine: Intercept −2.274; dbh/(dbh + n) 9.302; h/(h + m) 0.933; n 9; m 16; var(uk) 0.002; var(eki) 0.030","locator":"Table 5, p. 12"},{"field":"expression","quote":"a variance correction term, ((var(uk) + var(eki))/2) should be added to the intercept to correct for bias due to the logarithmic transformation","locator":"Section 2.6, p. 10"},{"field":"fit.n_trees","quote":"In total, 280 trees were included in this destructive aboveground biomass study, of which 126 were pine, 68 spruce and 86 birch.","locator":"Section 2.4, p. 6"},{"field":"fit.dbh_max_cm","quote":"The range of dbh was 1–22 cm, 1–21 cm and 1–11 cm for pine, spruce and birch, respectively","locator":"Section 2.4, p. 6"},{"field":"fit.h_max_m","quote":"The range of heights was 1.7–11.7 m, 1.6–13.3 m and 1.8–8.6 m for pine, spruce and birch, respectively","locator":"Section 2.4, p. 6"}],"check":[{"inputs":{"D":5,"H":5},"expected":3.6193,"origin":"computed","note":"hand-computed from the Table 5 coefficients with the (var(u) + var(e))/2 intercept correction"},{"inputs":{"D":12,"H":9},"expected":29.7643,"origin":"computed","note":"hand-computed from the Table 5 coefficients with the (var(u) + var(e))/2 intercept correction"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Fitted on pine-dominated mixed stands; fit n, DBH and height ranges are the species sample ranges. Expression applies the paper's stated additive correction (var(uk) + var(eki))/2 to the intercept. Variance values are as printed in Table 5; no other correction factor is stated. The paper models the total independently of the components, so it need not equal their sum. "},{"id":"repola-2014-agb-spruce","source":"repola-2014","name":"Norway spruce aboveground biomass, young dense stands, N Sweden (Table 5)","output":{"quantity":"agb"},"expression":"exp(-1.626 + (0.020 + 0.039) / 2 + 10.093 * D / (D + 11))","published":{"expression":"exp(-1.626 + (0.020 + 0.039) / 2 + 10.093 * dbh / (dbh + 11))","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Picea abies","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["SE"],"place":"Six young, dense, naturally regenerated stands in northern Sweden (63.26-65.69 N)","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":68,"dbh_min_cm":1,"dbh_max_cm":21,"h_min_m":1.6,"h_max_m":13.3,"method":"linear mixed model of ln(biomass) with random stand effect; ln(y) = Intercept + b1 dbh/(dbh + n)"},"evidence":[{"field":"expression","quote":"Total above-ground, kg, Norway spruce: Intercept −1.626; dbh/(dbh + n) 10.093; n 11; var(uk) 0.020; var(eki) 0.039","locator":"Table 5, p. 12"},{"field":"expression","quote":"a variance correction term, ((var(uk) + var(eki))/2) should be added to the intercept to correct for bias due to the logarithmic transformation","locator":"Section 2.6, p. 10"},{"field":"fit.n_trees","quote":"In total, 280 trees were included in this destructive aboveground biomass study, of which 126 were pine, 68 spruce and 86 birch.","locator":"Section 2.4, p. 6"},{"field":"fit.dbh_max_cm","quote":"The range of dbh was 1–22 cm, 1–21 cm and 1–11 cm for pine, spruce and birch, respectively","locator":"Section 2.4, p. 6"},{"field":"fit.h_max_m","quote":"The range of heights was 1.7–11.7 m, 1.6–13.3 m and 1.8–8.6 m for pine, spruce and birch, respectively","locator":"Section 2.4, p. 6"}],"check":[{"inputs":{"D":5},"expected":4.7472,"origin":"computed","note":"hand-computed from the Table 5 coefficients with the (var(u) + var(e))/2 intercept correction"},{"inputs":{"D":12},"expected":39.2289,"origin":"computed","note":"hand-computed from the Table 5 coefficients with the (var(u) + var(e))/2 intercept correction"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Fitted on pine-dominated mixed stands; fit n, DBH and height ranges are the species sample ranges. Expression applies the paper's stated additive correction (var(uk) + var(eki))/2 to the intercept. Variance values are as printed in Table 5; no other correction factor is stated. The paper models the total independently of the components, so it need not equal their sum. Height is not an input for this model (low dbh-h variation)."},{"id":"repola-2014-branch-birch","source":"repola-2014","name":"Birch living branch biomass, young dense stands, N Sweden (Table 5)","output":{"quantity":"branch_biomass"},"expression":"exp(-4.190 + (0.011 + 0.105) / 2 + 11.826 * D / (D + 6) + (-3.939) * H / (H + 10))","published":{"expression":"exp(-4.190 + (0.011 + 0.105) / 2 + 11.826 * dbh / (dbh + 6) + (-3.939) * h / (h + 10))","units":{"dbh":"cm","h":"m"},"variables":{"dbh":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"genus","name":"Betula","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["SE"],"place":"Six young, dense, naturally regenerated stands in northern Sweden (63.26-65.69 N)","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":86,"dbh_min_cm":1,"dbh_max_cm":11,"h_min_m":1.8,"h_max_m":8.6,"method":"linear mixed model of ln(biomass) with random stand effect; ln(y) = Intercept + b1 dbh/(dbh + n) + b2 h/(h + m)"},"evidence":[{"field":"expression","quote":"Living branches, kg, birch: Intercept −4.190; dbh/(dbh + n) 11.826; h/(h + m) −3.939; n 6; m 10; var(uk) 0.011; var(eki) 0.105","locator":"Table 5, p. 12"},{"field":"expression","quote":"a variance correction term, ((var(uk) + var(eki))/2) should be added to the intercept to correct for bias due to the logarithmic transformation","locator":"Section 2.6, p. 10"},{"field":"fit.n_trees","quote":"In total, 280 trees were included in this destructive aboveground biomass study, of which 126 were pine, 68 spruce and 86 birch.","locator":"Section 2.4, p. 6"},{"field":"fit.dbh_max_cm","quote":"The range of dbh was 1–22 cm, 1–21 cm and 1–11 cm for pine, spruce and birch, respectively","locator":"Section 2.4, p. 6"},{"field":"fit.h_max_m","quote":"The range of heights was 1.7–11.7 m, 1.6–13.3 m and 1.8–8.6 m for pine, spruce and birch, respectively","locator":"Section 2.4, p. 6"}],"check":[{"inputs":{"D":5,"H":5},"expected":0.9328,"origin":"computed","note":"hand-computed from the Table 5 coefficients with the (var(u) + var(e))/2 intercept correction"},{"inputs":{"D":10,"H":8},"expected":4.5203,"origin":"computed","note":"hand-computed from the Table 5 coefficients with the (var(u) + var(e))/2 intercept correction"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Fitted on pine-dominated mixed stands; fit n, DBH and height ranges are the species sample ranges. Expression applies the paper's stated additive correction (var(uk) + var(eki))/2 to the intercept. Variance values are as printed in Table 5; no other correction factor is stated. Living branches only (dead branches are modelled separately and not included). Birch coefficients are for Betula pendula and B. pubescens pooled. "},{"id":"repola-2014-branch-pine","source":"repola-2014","name":"Scots pine living branch biomass, young dense stands, N Sweden (Table 5)","output":{"quantity":"branch_biomass"},"expression":"exp(-2.949 + (0.005 + 0.131) / 2 + 15.444 * D / (D + 9) + (-6.350) * H / (H + 4))","published":{"expression":"exp(-2.949 + (0.005 + 0.131) / 2 + 15.444 * dbh / (dbh + 9) + (-6.350) * h / (h + 4))","units":{"dbh":"cm","h":"m"},"variables":{"dbh":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus sylvestris","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["SE"],"place":"Six young, dense, naturally regenerated stands in northern Sweden (63.26-65.69 N)","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":126,"dbh_min_cm":1,"dbh_max_cm":22,"h_min_m":1.7,"h_max_m":11.7,"method":"linear mixed model of ln(biomass) with random stand effect; ln(y) = Intercept + b1 dbh/(dbh + n) + b2 h/(h + m)"},"evidence":[{"field":"expression","quote":"Living branches, kg, Scots pine: Intercept −2.949; dbh/(dbh + n) 15.444; h/(h + m) −6.350; n 9; m 4; var(uk) 0.005; var(eki) 0.131","locator":"Table 5, p. 12"},{"field":"expression","quote":"a variance correction term, ((var(uk) + var(eki))/2) should be added to the intercept to correct for bias due to the logarithmic transformation","locator":"Section 2.6, p. 10"},{"field":"fit.n_trees","quote":"In total, 280 trees were included in this destructive aboveground biomass study, of which 126 were pine, 68 spruce and 86 birch.","locator":"Section 2.4, p. 6"},{"field":"fit.dbh_max_cm","quote":"The range of dbh was 1–22 cm, 1–21 cm and 1–11 cm for pine, spruce and birch, respectively","locator":"Section 2.4, p. 6"},{"field":"fit.h_max_m","quote":"The range of heights was 1.7–11.7 m, 1.6–13.3 m and 1.8–8.6 m for pine, spruce and birch, respectively","locator":"Section 2.4, p. 6"}],"check":[{"inputs":{"D":5,"H":5},"expected":0.4094,"origin":"computed","note":"hand-computed from the Table 5 coefficients with the (var(u) + var(e))/2 intercept correction"},{"inputs":{"D":12,"H":9},"expected":4.702,"origin":"computed","note":"hand-computed from the Table 5 coefficients with the (var(u) + var(e))/2 intercept correction"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Fitted on pine-dominated mixed stands; fit n, DBH and height ranges are the species sample ranges. Expression applies the paper's stated additive correction (var(uk) + var(eki))/2 to the intercept. Variance values are as printed in Table 5; no other correction factor is stated. Living branches only (dead branches are modelled separately and not included). "},{"id":"repola-2014-branch-spruce","source":"repola-2014","name":"Norway spruce living branch biomass, young dense stands, N Sweden (Table 5)","output":{"quantity":"branch_biomass"},"expression":"exp(-3.390 + (0.059 + 0.093) / 2 + 12.228 * D / (D + 8) + (-3.834) * H / (H + 8))","published":{"expression":"exp(-3.390 + (0.059 + 0.093) / 2 + 12.228 * dbh / (dbh + 8) + (-3.834) * h / (h + 8))","units":{"dbh":"cm","h":"m"},"variables":{"dbh":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Picea abies","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["SE"],"place":"Six young, dense, naturally regenerated stands in northern Sweden (63.26-65.69 N)","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":68,"dbh_min_cm":1,"dbh_max_cm":21,"h_min_m":1.6,"h_max_m":13.3,"method":"linear mixed model of ln(biomass) with random stand effect; ln(y) = Intercept + b1 dbh/(dbh + n) + b2 h/(h + m)"},"evidence":[{"field":"expression","quote":"Living branches, kg, Norway spruce: Intercept −3.390; dbh/(dbh + n) 12.228; h/(h + m) −3.834; n 8; m 8; var(uk) 0.059; var(eki) 0.093","locator":"Table 5, p. 12"},{"field":"expression","quote":"a variance correction term, ((var(uk) + var(eki))/2) should be added to the intercept to correct for bias due to the logarithmic transformation","locator":"Section 2.6, p. 10"},{"field":"fit.n_trees","quote":"In total, 280 trees were included in this destructive aboveground biomass study, of which 126 were pine, 68 spruce and 86 birch.","locator":"Section 2.4, p. 6"},{"field":"fit.dbh_max_cm","quote":"The range of dbh was 1–22 cm, 1–21 cm and 1–11 cm for pine, spruce and birch, respectively","locator":"Section 2.4, p. 6"},{"field":"fit.h_max_m","quote":"The range of heights was 1.7–11.7 m, 1.6–13.3 m and 1.8–8.6 m for pine, spruce and birch, respectively","locator":"Section 2.4, p. 6"}],"check":[{"inputs":{"D":5,"H":4},"expected":1.1175,"origin":"computed","note":"hand-computed from the Table 5 coefficients with the (var(u) + var(e))/2 intercept correction"},{"inputs":{"D":12,"H":9},"expected":7.3378,"origin":"computed","note":"hand-computed from the Table 5 coefficients with the (var(u) + var(e))/2 intercept correction"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Fitted on pine-dominated mixed stands; fit n, DBH and height ranges are the species sample ranges. Expression applies the paper's stated additive correction (var(uk) + var(eki))/2 to the intercept. Variance values are as printed in Table 5; no other correction factor is stated. Living branches only (dead branches are modelled separately and not included). "},{"id":"repola-2014-foliage-birch","source":"repola-2014","name":"Birch foliage biomass, young dense stands, N Sweden (Table 5)","output":{"quantity":"foliage_biomass"},"expression":"exp(-5.551 + (0.120 + 0.126) / 2 + 8.584 * D / (D + 5))","published":{"expression":"exp(-5.551 + (0.120 + 0.126) / 2 + 8.584 * dbh / (dbh + 5))","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"genus","name":"Betula","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["SE"],"place":"Six young, dense, naturally regenerated stands in northern Sweden (63.26-65.69 N)","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":86,"dbh_min_cm":1,"dbh_max_cm":11,"h_min_m":1.8,"h_max_m":8.6,"method":"linear mixed model of ln(biomass) with random stand effect; ln(y) = Intercept + b1 dbh/(dbh + n)"},"evidence":[{"field":"expression","quote":"Foliage, kg, birch: Intercept −5.551; dbh/(dbh + n) 8.584; n 5; var(uk) 0.120; var(eki) 0.126","locator":"Table 5, p. 12"},{"field":"expression","quote":"a variance correction term, ((var(uk) + var(eki))/2) should be added to the intercept to correct for bias due to the logarithmic transformation","locator":"Section 2.6, p. 10"},{"field":"fit.n_trees","quote":"In total, 280 trees were included in this destructive aboveground biomass study, of which 126 were pine, 68 spruce and 86 birch.","locator":"Section 2.4, p. 6"},{"field":"fit.dbh_max_cm","quote":"The range of dbh was 1–22 cm, 1–21 cm and 1–11 cm for pine, spruce and birch, respectively","locator":"Section 2.4, p. 6"},{"field":"fit.h_max_m","quote":"The range of heights was 1.7–11.7 m, 1.6–13.3 m and 1.8–8.6 m for pine, spruce and birch, respectively","locator":"Section 2.4, p. 6"}],"check":[{"inputs":{"D":5},"expected":0.3211,"origin":"computed","note":"hand-computed from the Table 5 coefficients with the (var(u) + var(e))/2 intercept correction"},{"inputs":{"D":10},"expected":1.3427,"origin":"computed","note":"hand-computed from the Table 5 coefficients with the (var(u) + var(e))/2 intercept correction"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Fitted on pine-dominated mixed stands; fit n, DBH and height ranges are the species sample ranges. Expression applies the paper's stated additive correction (var(uk) + var(eki))/2 to the intercept. Variance values are as printed in Table 5; no other correction factor is stated. Birch coefficients are for Betula pendula and B. pubescens pooled. Height is not an input for this model (low dbh-h variation)."},{"id":"repola-2014-foliage-pine","source":"repola-2014","name":"Scots pine foliage biomass, young dense stands, N Sweden (Table 5)","output":{"quantity":"foliage_biomass"},"expression":"exp(1.850 + (0.023 + 0.105) / 2 + 12.504 * D / (D + 5) + (-10.624) * H / (H + 1))","published":{"expression":"exp(1.850 + (0.023 + 0.105) / 2 + 12.504 * dbh / (dbh + 5) + (-10.624) * h / (h + 1))","units":{"dbh":"cm","h":"m"},"variables":{"dbh":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus sylvestris","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["SE"],"place":"Six young, dense, naturally regenerated stands in northern Sweden (63.26-65.69 N)","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":126,"dbh_min_cm":1,"dbh_max_cm":22,"h_min_m":1.7,"h_max_m":11.7,"method":"linear mixed model of ln(biomass) with random stand effect; ln(y) = Intercept + b1 dbh/(dbh + n) + b2 h/(h + m)"},"evidence":[{"field":"expression","quote":"Foliage, kg, Scots pine: Intercept 1.850; dbh/(dbh + n) 12.504; h/(h + m) −10.624; n 5; m 1; var(uk) 0.023; var(eki) 0.105","locator":"Table 5, p. 12"},{"field":"expression","quote":"a variance correction term, ((var(uk) + var(eki))/2) should be added to the intercept to correct for bias due to the logarithmic transformation","locator":"Section 2.6, p. 10"},{"field":"fit.n_trees","quote":"In total, 280 trees were included in this destructive aboveground biomass study, of which 126 were pine, 68 spruce and 86 birch.","locator":"Section 2.4, p. 6"},{"field":"fit.dbh_max_cm","quote":"The range of dbh was 1–22 cm, 1–21 cm and 1–11 cm for pine, spruce and birch, respectively","locator":"Section 2.4, p. 6"},{"field":"fit.h_max_m","quote":"The range of heights was 1.7–11.7 m, 1.6–13.3 m and 1.8–8.6 m for pine, spruce and birch, respectively","locator":"Section 2.4, p. 6"}],"check":[{"inputs":{"D":5,"H":5},"expected":0.5029,"origin":"computed","note":"hand-computed from the Table 5 coefficients with the (var(u) + var(e))/2 intercept correction"},{"inputs":{"D":12,"H":9},"expected":3.2503,"origin":"computed","note":"hand-computed from the Table 5 coefficients with the (var(u) + var(e))/2 intercept correction"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Fitted on pine-dominated mixed stands; fit n, DBH and height ranges are the species sample ranges. Expression applies the paper's stated additive correction (var(uk) + var(eki))/2 to the intercept. Variance values are as printed in Table 5; no other correction factor is stated. "},{"id":"repola-2014-foliage-spruce","source":"repola-2014","name":"Norway spruce foliage biomass, young dense stands, N Sweden (Table 5)","output":{"quantity":"foliage_biomass"},"expression":"exp(-2.924 + (0.027 + 0.113) / 2 + 8.464 * D / (D + 8))","published":{"expression":"exp(-2.924 + (0.027 + 0.113) / 2 + 8.464 * dbh / (dbh + 8))","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Picea abies","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["SE"],"place":"Six young, dense, naturally regenerated stands in northern Sweden (63.26-65.69 N)","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":68,"dbh_min_cm":1,"dbh_max_cm":21,"h_min_m":1.6,"h_max_m":13.3,"method":"linear mixed model of ln(biomass) with random stand effect; ln(y) = Intercept + b1 dbh/(dbh + n)"},"evidence":[{"field":"expression","quote":"Foliage, kg, Norway spruce: Intercept −2.924; dbh/(dbh + n) 8.464; n 8; var(uk) 0.027; var(eki) 0.113","locator":"Table 5, p. 12"},{"field":"expression","quote":"a variance correction term, ((var(uk) + var(eki))/2) should be added to the intercept to correct for bias due to the logarithmic transformation","locator":"Section 2.6, p. 10"},{"field":"fit.n_trees","quote":"In total, 280 trees were included in this destructive aboveground biomass study, of which 126 were pine, 68 spruce and 86 birch.","locator":"Section 2.4, p. 6"},{"field":"fit.dbh_max_cm","quote":"The range of dbh was 1–22 cm, 1–21 cm and 1–11 cm for pine, spruce and birch, respectively","locator":"Section 2.4, p. 6"},{"field":"fit.h_max_m","quote":"The range of heights was 1.7–11.7 m, 1.6–13.3 m and 1.8–8.6 m for pine, spruce and birch, respectively","locator":"Section 2.4, p. 6"}],"check":[{"inputs":{"D":5},"expected":1.4939,"origin":"computed","note":"hand-computed from the Table 5 coefficients with the (var(u) + var(e))/2 intercept correction"},{"inputs":{"D":12},"expected":9.2479,"origin":"computed","note":"hand-computed from the Table 5 coefficients with the (var(u) + var(e))/2 intercept correction"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Fitted on pine-dominated mixed stands; fit n, DBH and height ranges are the species sample ranges. Expression applies the paper's stated additive correction (var(uk) + var(eki))/2 to the intercept. Variance values are as printed in Table 5; no other correction factor is stated. Height is not an input for this model (low dbh-h variation)."},{"id":"repola-2014-stem-birch","source":"repola-2014","name":"Birch stem biomass, young dense stands, N Sweden (Table 5)","output":{"quantity":"stem_biomass"},"expression":"exp(-4.879 + (0.001 + 0.016) / 2 + 8.037 * D / (D + 2) + (22.614) * H / (H + 12) + (-4.003) * ln(H))","published":{"expression":"exp(-4.879 + (0.001 + 0.016) / 2 + 8.037 * dbh / (dbh + 2) + (22.614) * h / (h + 12) + (-4.003) * ln(h))","units":{"dbh":"cm","h":"m"},"variables":{"dbh":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"genus","name":"Betula","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["SE"],"place":"Six young, dense, naturally regenerated stands in northern Sweden (63.26-65.69 N)","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":86,"dbh_min_cm":1,"dbh_max_cm":11,"h_min_m":1.8,"h_max_m":8.6,"method":"linear mixed model of ln(biomass) with random stand effect; ln(y) = Intercept + b1 dbh/(dbh + n) + b2 h/(h + m) + b3 ln(h)"},"evidence":[{"field":"expression","quote":"Stem, kg, birch: Intercept −4.879; dbh/(dbh + n) 8.037; h/(h + m) 22.614; ln(h) −4.003; n 2; m 12; var(uk) 0.001; var(eki) 0.016","locator":"Table 5, p. 12"},{"field":"expression","quote":"a variance correction term, ((var(uk) + var(eki))/2) should be added to the intercept to correct for bias due to the logarithmic transformation","locator":"Section 2.6, p. 10"},{"field":"fit.n_trees","quote":"In total, 280 trees were included in this destructive aboveground biomass study, of which 126 were pine, 68 spruce and 86 birch.","locator":"Section 2.4, p. 6"},{"field":"fit.dbh_max_cm","quote":"The range of dbh was 1–22 cm, 1–21 cm and 1–11 cm for pine, spruce and birch, respectively","locator":"Section 2.4, p. 6"},{"field":"fit.h_max_m","quote":"The range of heights was 1.7–11.7 m, 1.6–13.3 m and 1.8–8.6 m for pine, spruce and birch, respectively","locator":"Section 2.4, p. 6"}],"check":[{"inputs":{"D":5,"H":5},"expected":2.9412,"origin":"computed","note":"hand-computed from the Table 5 coefficients with the (var(u) + var(e))/2 intercept correction"},{"inputs":{"D":10,"H":8},"expected":12.7891,"origin":"computed","note":"hand-computed from the Table 5 coefficients with the (var(u) + var(e))/2 intercept correction"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Fitted on pine-dominated mixed stands; fit n, DBH and height ranges are the species sample ranges. Expression applies the paper's stated additive correction (var(uk) + var(eki))/2 to the intercept. Variance values are as printed in Table 5; no other correction factor is stated. Birch coefficients are for Betula pendula and B. pubescens pooled. "},{"id":"repola-2014-stem-pine","source":"repola-2014","name":"Scots pine stem biomass, young dense stands, N Sweden (Table 5)","output":{"quantity":"stem_biomass"},"expression":"exp(-3.010 + (0.003 + 0.018) / 2 + 7.999 * D / (D + 8) + (2.959) * H / (H + 13))","published":{"expression":"exp(-3.010 + (0.003 + 0.018) / 2 + 7.999 * dbh / (dbh + 8) + (2.959) * h / (h + 13))","units":{"dbh":"cm","h":"m"},"variables":{"dbh":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus sylvestris","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["SE"],"place":"Six young, dense, naturally regenerated stands in northern Sweden (63.26-65.69 N)","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":126,"dbh_min_cm":1,"dbh_max_cm":22,"h_min_m":1.7,"h_max_m":11.7,"method":"linear mixed model of ln(biomass) with random stand effect; ln(y) = Intercept + b1 dbh/(dbh + n) + b2 h/(h + m)"},"evidence":[{"field":"expression","quote":"Stem, kg, Scots pine: Intercept −3.010; dbh/(dbh + n) 7.999; h/(h + m) 2.959; n 8; m 13; var(uk) 0.003; var(eki) 0.018","locator":"Table 5, p. 12"},{"field":"expression","quote":"a variance correction term, ((var(uk) + var(eki))/2) should be added to the intercept to correct for bias due to the logarithmic transformation","locator":"Section 2.6, p. 10"},{"field":"fit.n_trees","quote":"In total, 280 trees were included in this destructive aboveground biomass study, of which 126 were pine, 68 spruce and 86 birch.","locator":"Section 2.4, p. 6"},{"field":"fit.dbh_max_cm","quote":"The range of dbh was 1–22 cm, 1–21 cm and 1–11 cm for pine, spruce and birch, respectively","locator":"Section 2.4, p. 6"},{"field":"fit.h_max_m","quote":"The range of heights was 1.7–11.7 m, 1.6–13.3 m and 1.8–8.6 m for pine, spruce and birch, respectively","locator":"Section 2.4, p. 6"}],"check":[{"inputs":{"D":5,"H":5},"expected":2.4571,"origin":"computed","note":"hand-computed from the Table 5 coefficients with the (var(u) + var(e))/2 intercept correction"},{"inputs":{"D":12,"H":9},"expected":20.2955,"origin":"computed","note":"hand-computed from the Table 5 coefficients with the (var(u) + var(e))/2 intercept correction"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Fitted on pine-dominated mixed stands; fit n, DBH and height ranges are the species sample ranges. Expression applies the paper's stated additive correction (var(uk) + var(eki))/2 to the intercept. Variance values are as printed in Table 5; no other correction factor is stated. "},{"id":"repola-2014-stem-spruce","source":"repola-2014","name":"Norway spruce stem biomass, young dense stands, N Sweden (Table 5)","output":{"quantity":"stem_biomass"},"expression":"exp(-2.669 + (0.010 + 0.020) / 2 + 10.482 * D / (D + 10))","published":{"expression":"exp(-2.669 + (0.010 + 0.020) / 2 + 10.482 * dbh / (dbh + 10))","units":{"dbh":"cm"},"variables":{"dbh":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Picea abies","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["SE"],"place":"Six young, dense, naturally regenerated stands in northern Sweden (63.26-65.69 N)","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":68,"dbh_min_cm":1,"dbh_max_cm":21,"h_min_m":1.6,"h_max_m":13.3,"method":"linear mixed model of ln(biomass) with random stand effect; ln(y) = Intercept + b1 dbh/(dbh + n)"},"evidence":[{"field":"expression","quote":"Stem, kg, Norway spruce: Intercept −2.669; dbh/(dbh + n) 10.482; n 10; var(uk) 0.010; var(eki) 0.020","locator":"Table 5, p. 12"},{"field":"expression","quote":"a variance correction term, ((var(uk) + var(eki))/2) should be added to the intercept to correct for bias due to the logarithmic transformation","locator":"Section 2.6, p. 10"},{"field":"fit.n_trees","quote":"In total, 280 trees were included in this destructive aboveground biomass study, of which 126 were pine, 68 spruce and 86 birch.","locator":"Section 2.4, p. 6"},{"field":"fit.dbh_max_cm","quote":"The range of dbh was 1–22 cm, 1–21 cm and 1–11 cm for pine, spruce and birch, respectively","locator":"Section 2.4, p. 6"},{"field":"fit.h_max_m","quote":"The range of heights was 1.7–11.7 m, 1.6–13.3 m and 1.8–8.6 m for pine, spruce and birch, respectively","locator":"Section 2.4, p. 6"}],"check":[{"inputs":{"D":5},"expected":2.3164,"origin":"computed","note":"hand-computed from the Table 5 coefficients with the (var(u) + var(e))/2 intercept correction"},{"inputs":{"D":12},"expected":21.4014,"origin":"computed","note":"hand-computed from the Table 5 coefficients with the (var(u) + var(e))/2 intercept correction"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Fitted on pine-dominated mixed stands; fit n, DBH and height ranges are the species sample ranges. Expression applies the paper's stated additive correction (var(uk) + var(eki))/2 to the intercept. Variance values are as printed in Table 5; no other correction factor is stated. Height is not an input for this model (low dbh-h variation)."},{"id":"riofrio-2013-acacia-melanoxylon","source":"riofrio-2013","name":"Acacia melanoxylon AGB in Andean agroforestry, sum of SUR component models (DBH, height)","output":{"quantity":"agb"},"expression":"0.083622 * D^1.826783 * H^0.689611 + 0.365815 * D^2 - 1.044164 * H - 0.170251 * D * H","published":{"expression":"0.083622*DBH^1.826783*Ht^0.689611 + 0.101503*DBH^2 - 1.044164*Ht + 0.144577*DBH^2 - 0.094715*DBH*Ht + 0.119735*DBH^2 - 0.075536*DBH*Ht","units":{"DBH":"cm","Ht":"m"},"variables":{"DBH":"D","Ht":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Acacia melanoxylon","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["EC"],"place":"Two INIAP agroforestry systems, inter-Andean western cordillera of northern/central Ecuador, above 3000 m (Bosque Siempreverde Montano Alto)","biomes":["tropical","montane"]},"stand":"agroforestry","fit":{"n_trees":30,"dbh_min_cm":13.4,"dbh_max_cm":31.5,"h_min_m":11.3,"h_max_m":24.3,"r2":0.906,"method":"Component models (stem, coarse branches, thin branches, leaves) fitted by SUR; total = sum of components"},"evidence":[{"field":"expression","quote":"W f = 0,083622*DBH 1,826783 *Ht 0,689611","locator":"Tabla 4, Acacia, Fuste"},{"field":"expression","quote":"W rg = 0,101503*DBH2 – 1,044164*Ht","locator":"Tabla 4, Acacia, Ramas gruesas"},{"field":"expression","quote":"W rd = 0,144577*DBH2 - 0,094715*DBH*Ht","locator":"Tabla 4, Acacia, Ramas delgadas"},{"field":"expression","quote":"W h = 0,119735*DBH2 - 0,075536*DBH*Ht","locator":"Tabla 4, Acacia, Hojas"},{"field":"fit.r2","quote":"Biomasa total 44,34 0,906","locator":"Tabla 4, Acacia (RMSE kg, R2 ajustado)"},{"field":"fit.dbh_min_cm","quote":"Acacia 30 22,4 4,4 13,4 31,5 17,9 2,4 11,3 24,3","locator":"Tabla 1"}],"check":[{"inputs":{"D":22.4,"H":17.9},"expected":275.6212,"origin":"computed","note":"computed at the sample means (observed mean Wt 286,8 kg, Tabla 1)"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Introduced species widely planted in Andean agroforestry. Total aboveground dry biomass (kg) is the sum of the four Tabla 4 component equations; exponents printed as superscripts in the stem model."},{"id":"riofrio-2013-alnus-acuminata","source":"riofrio-2013","name":"Alnus acuminata (aliso) AGB, sum of SUR component models (DBH, height)","output":{"quantity":"agb"},"expression":"0.347148 * D^2 + 0.003688 * D^2 * H - 1.267285 * H","published":{"expression":"0.1483*DBH^2 + 0.003688*DBH^2*Ht + 0.080183*DBH^2 - 0.569041*Ht + 0.085229*DBH^2 - 0.483528*Ht + 0.033436*DBH^2 - 0.214716*Ht","units":{"DBH":"cm","Ht":"m"},"variables":{"DBH":"D","Ht":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Alnus acuminata","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["EC"],"place":"Two INIAP agroforestry systems, inter-Andean western cordillera of northern/central Ecuador, above 3000 m (Bosque Siempreverde Montano Alto)","biomes":["tropical","montane"]},"stand":"agroforestry","fit":{"n_trees":30,"dbh_min_cm":9.3,"dbh_max_cm":20.3,"h_min_m":6.8,"h_max_m":12.8,"r2":0.938,"method":"Component models (stem, coarse branches, thin branches, leaves) fitted simultaneously by seemingly unrelated regression (SUR); total = sum of components"},"evidence":[{"field":"expression","quote":"W f = 0,1483*DBH2+0,003688*DBH2*Ht","locator":"Tabla 4, Aliso, Fuste"},{"field":"expression","quote":"W rg = 0,080183*DBH2 - 0,569041*Ht","locator":"Tabla 4, Aliso, Ramas gruesas"},{"field":"expression","quote":"W rd = 0,085229DBH2 - 0,483528*Ht","locator":"Tabla 4, Aliso, Ramillas delgadas"},{"field":"expression","quote":"W h = 0,033436*DBH2 - 0,214716*Ht","locator":"Tabla 4, Aliso, Hojas"},{"field":"fit.r2","quote":"Biomasa total 9,72 0,938","locator":"Tabla 4, Aliso (RMSE kg, R2 ajustado)"},{"field":"fit.dbh_min_cm","quote":"Aliso 30 14,5 3,2 9,3 20,3 10,7 1,4 6,8 12,8","locator":"Tabla 1 (n, DBH mean SD min max, Ht mean SD min max)"}],"check":[{"inputs":{"D":14.5,"H":10.7},"expected":67.7247,"origin":"computed","note":"computed from the sum of published components at the sample means (observed mean Wt 71,1 kg, Tabla 1)"},{"inputs":{"D":20,"H":12},"expected":141.3542,"origin":"computed","note":"computed from the sum of published components"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Total aboveground dry biomass (kg) is the sum of the four additive SUR component equations in Tabla 4 (stem with bark, coarse branches 2–7 cm, thin branches <2 cm, leaves); the paper prints no single total equation. r2 is the adjusted R² of total biomass. Linear models, no log correction. The negative height terms make predictions unreliable for short, thick trees outside the fitted range. A journal version is Riofrío et al. (2015) Biomass and Bioenergy 80:252-259 (not read)."},{"id":"riofrio-2013-buddleja-coriacea","source":"riofrio-2013","name":"Buddleja coriacea (colle) AGB per stem from diameter at 30 cm and height (sum of SUR components)","output":{"quantity":"agb"},"expression":"0.025016 * D30^2 * H","published":{"expression":"0.01489*d^2*Ht + 0.006169*d^2*Ht + 0.003957*d^2*Ht","units":{"d":"cm","Ht":"m"},"variables":{"d":"D30","Ht":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Buddleja coriacea","family":"Scrophulariaceae","group":"shrub"},"region":{"scope":"regional","countries":["EC"],"place":"Two INIAP agroforestry systems, inter-Andean western cordillera of northern/central Ecuador, above 3000 m (Bosque Siempreverde Montano Alto)","biomes":["tropical","montane"]},"stand":"agroforestry","fit":{"n_trees":13,"h_min_m":3.1,"h_max_m":5.1,"r2":0.925,"method":"Component models (coarse branches >2 cm, thin branches, leaves) fitted by SUR; total = sum of components"},"evidence":[{"field":"expression","quote":"W rg = 0,01489*d2 *Ht","locator":"Tabla 4, Colle, Ramas gruesas"},{"field":"expression","quote":"W rd = 0,006169*d2 *Ht","locator":"Tabla 4, Colle, Ramas delgadas"},{"field":"expression","quote":"W h = 0,003957 *d2 *Ht","locator":"Tabla 4, Colle, Hojas"},{"field":"fit.r2","quote":"Biomasa total 2,09 0,925","locator":"Tabla 4, Colle (RMSE kg, R2 ajustado)"},{"field":"notes","quote":"sólo se seleccionó una rama por individuo para el muestreo destructivo, considerándose a cada muestra como un individuo diferente","locator":"Metodología, Datos"},{"field":"fit.n_trees","quote":"Colle 13 11,1* 2,2 8,6 15,6 4,2 0,6 3,1 5,1","locator":"Tabla 1 (* = diameter at 30 cm above ground)"}],"check":[{"inputs":{"D30":11.1,"H":4.2},"expected":12.9453,"origin":"computed","note":"computed at the sample means (observed mean Wt 13,8 kg, Tabla 1)"},{"inputs":{"D30":15,"H":5},"expected":28.143,"origin":"computed","note":"computed from the sum of published components"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Multi-stemmed shrub (3–7 stems from the base): each sampled stem was treated as one individual, so the model gives biomass per stem; sum over stems for a plant. D30 = stem diameter 30 cm above ground (fitted range 8,6–15,6 cm). Total is the sum of the three Tabla 4 component equations."},{"id":"rohling-2019-bgb-birch","source":"rohling-2019","name":"Betula pendula, Germany, belowground biomass from DBH (Eq. 4, Tab. 1)","output":{"quantity":"bgb"},"expression":"0.04582 * D^2.23951","published":{"expression":"0.04582 * DBH^2.23951","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Betula pendula","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["DE"],"place":"20 forest stands in Brandenburg, Saxony-Anhalt and Thuringia, Germany","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":48,"dbh_min_cm":8.2,"dbh_max_cm":52.9,"method":"weighted (1/DBH²) nonlinear least squares power function"},"evidence":[{"field":"expression","quote":"BGB = β1 · DBH^β2; Birch β1 0.04582 (0.0092-0.0824), β2 2.23951 (2.0047-2.4742), ME 0.81, RMSE 26.9","locator":"Eq. 4 and Tab. 1, p. 168"},{"field":"fit.n_trees","quote":"48 Birches, 39 Oaks and 54 Pines were sampled","locator":"Material and methods, Study sites, p. 167"},{"field":"fit.dbh_max_cm","quote":"DBH ranged from 7.2 up to 53.2 cm for Pine, from 7.4 to 42.0 cm for Oak and from 8.2 to 52.9 cm for Birch","locator":"Study sites, pp. 167-168"}],"check":[{"inputs":{"D":10},"expected":7.9536,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":25},"expected":61.909,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":40},"expected":177.37,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dry mass of coarse roots (2 mm and thicker) including the belowground stump; fine roots excluded. Units not printed beside Tab. 1 but BGB is reported in kg and DBH in cm throughout the paper. The paper gives model efficiency (ME) and RMSE, not R², so none is recorded."},{"id":"rohling-2019-bgb-oak","source":"rohling-2019","name":"Quercus robur and Q. petraea, Germany, belowground biomass from DBH (Eq. 4, Tab. 1)","output":{"quantity":"bgb"},"expression":"0.040113 * D^2.227842","published":{"expression":"0.040113 * DBH^2.227842","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"genus","name":"Quercus (Q. robur and Q. petraea pooled)","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["DE"],"place":"20 forest stands in Brandenburg, Saxony-Anhalt and Thuringia, Germany","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":39,"dbh_min_cm":7.4,"dbh_max_cm":42,"method":"weighted (1/DBH²) nonlinear least squares power function"},"evidence":[{"field":"expression","quote":"BGB = β1 · DBH^β2; Oak β1 0.040113 (0.0253-0.0548), β2 2.227842 (2.1179-2.3377), ME 0.98, RMSE 5.2","locator":"Eq. 4 and Tab. 1, p. 168"},{"field":"fit.n_trees","quote":"48 Birches, 39 Oaks and 54 Pines were sampled","locator":"Material and methods, Study sites, p. 167"},{"field":"fit.dbh_max_cm","quote":"DBH ranged from 7.2 up to 53.2 cm for Pine, from 7.4 to 42.0 cm for Oak and from 8.2 to 52.9 cm for Birch","locator":"Study sites, pp. 167-168"}],"check":[{"inputs":{"D":10},"expected":6.7784,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":25},"expected":52.2,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":40},"expected":148.74,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dry mass of coarse roots (2 mm and thicker) including the belowground stump; fine roots excluded. Units not printed beside Tab. 1 but BGB is reported in kg and DBH in cm throughout the paper. The paper gives model efficiency (ME) and RMSE, not R², so none is recorded."},{"id":"rohling-2019-bgb-pine","source":"rohling-2019","name":"Pinus sylvestris, Germany, belowground biomass from DBH (Eq. 4, Tab. 1)","output":{"quantity":"bgb"},"expression":"0.010617 * D^2.593122","published":{"expression":"0.010617 * DBH^2.593122","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus sylvestris","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["DE"],"place":"20 forest stands in Brandenburg, Saxony-Anhalt and Thuringia, Germany","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":54,"dbh_min_cm":7.2,"dbh_max_cm":53.2,"method":"weighted (1/DBH²) nonlinear least squares power function"},"evidence":[{"field":"expression","quote":"BGB = β1 · DBH^β2; Pine β1 0.010617 (0.0053-0.0159), β2 2.593122 (2.4549-2.7312), ME 0.95, RMSE 13.7","locator":"Eq. 4 and Tab. 1, p. 168"},{"field":"fit.n_trees","quote":"48 Birches, 39 Oaks and 54 Pines were sampled","locator":"Material and methods, Study sites, p. 167"},{"field":"fit.dbh_max_cm","quote":"DBH ranged from 7.2 up to 53.2 cm for Pine, from 7.4 to 42.0 cm for Oak and from 8.2 to 52.9 cm for Birch","locator":"Study sites, pp. 167-168"}],"check":[{"inputs":{"D":10},"expected":4.1603,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":25},"expected":44.775,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":40},"expected":151.47,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dry mass of coarse roots (2 mm and thicker) including the belowground stump; fine roots excluded. Units not printed beside Tab. 1 but BGB is reported in kg and DBH in cm throughout the paper. The paper gives model efficiency (ME) and RMSE, not R², so none is recorded."},{"id":"romero-2020-mb1-chave-d-rho","source":"romero-2020","name":"Commercial stem biomass from DBH and wood density (MB1)","output":{"quantity":"stem_biomass"},"expression":"1000 * exp(-6.51456) * D^1.93113 * rho^1.317114 * 1.048296","published":{"expression":"exp(-6.51456) * d^1.93113 * p^1.317114 * 1.048296","units":{"d":"cm","p":"g/cm3"},"variables":{"d":"D","p":"rho"},"output_unit":"Mg"},"taxon":{"level":"mixed","name":"20 commercial tree species of a managed forest (DBH >= 50 cm)","group":"broadleaf"},"region":{"scope":"site","countries":["BR"],"place":"Fazenda Antimari I and II, Porto Acre, Acre","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":223,"dbh_min_cm":50.4,"dbh_max_cm":149.9,"r2":0.78,"cf":1.048296,"method":"Linear regression on ln(B) vs ln(d) and ln(p), back-transformed with correction factor"},"evidence":[{"field":"expression","quote":"ln(B) = β0 + β1 ln(d) + β2 ln(p) + ε","locator":"Table 1, MB1 (Chave et al. 2005 form)"},{"field":"fit.r2","quote":"MB1 −6.51456 * 1.93113 * 1.317114 * 1.296 0.78 753.60 0.857 1.048296","locator":"Table 4 (β0, β1, β2, RMSE, R2, AIC, MAD, CF)"},{"field":"fit.dbh_min_cm","quote":"Total 223 50.4–149.9 79.6 ± 19.8 0.27–0.89 0.56 ± 0.16","locator":"Table 2 (n, DBH range and mean, wood density range and mean)"}],"check":[{"inputs":{"D":60,"rho":0.56},"expected":1965.3,"origin":"computed","note":"computed from the published form (B in Mg times 1000)"},{"inputs":{"D":100,"rho":0.7},"expected":7071,"origin":"computed","note":"computed from the published form (B in Mg times 1000)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"B is in Mg in the paper (methods: biomass in Mg), converted to kg in the canonical form. p is the species mean basic density (g/cm3). Biomass is commercial stem volume times basic density. R2 is on the log scale. Applies to commercial stems only (stump at 30 cm, buttresses removed, crown left in the forest) of trees with DBH >= 50 cm; do not use for whole-tree totals. The authors selected the equations with commercial stem length l as the best ones; these are the ones that use only canonical variables."},{"id":"romero-2020-mv1-husch-log","source":"romero-2020","name":"Commercial stem volume from DBH, Husch log model (MV1)","output":{"quantity":"stem_volume"},"expression":"exp(-6.5125) * D^1.88558 * 1.0527","published":{"expression":"exp(-6.5125) * d^1.88558 * 1.0527","units":{"d":"cm"},"variables":{"d":"D"},"output_unit":"m3"},"taxon":{"level":"mixed","name":"20 commercial tree species of a managed forest (DBH >= 50 cm)","group":"broadleaf"},"region":{"scope":"site","countries":["BR"],"place":"Fazenda Antimari I and II, Porto Acre, Acre","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":223,"dbh_min_cm":50.4,"dbh_max_cm":149.9,"r2":0.67,"cf":1.0527,"method":"Linear regression on ln(V) vs ln(d), back-transformed with correction factor"},"evidence":[{"field":"expression","quote":"ln(V) = β0 + β1 ln(d) + ε","locator":"Table 1, MV1 (Husch 1963; logarithmic)"},{"field":"fit.r2","quote":"MV1 −6.51250 * 1.88558 * 2.318 0.67 1011.70 1.621 1.0527","locator":"Table 3 (β0, β1, RMSE, R2, AIC, MAD, CF)"},{"field":"fit.dbh_min_cm","quote":"Total 223 50.4–149.9 79.6 ± 19.8 0.27–0.89 0.56 ± 0.16","locator":"Table 2 (n, DBH range and mean, wood density range and mean)"}],"check":[{"inputs":{"D":60},"expected":3.5222,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":100},"expected":9.2283,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Commercial stem volume over bark (Smalian) in m3. Coefficients and CF as printed; the CF multiplies the back-transformed estimate. R2 is on the log scale. Applies to commercial stems only (stump at 30 cm, buttresses removed, crown left in the forest) of trees with DBH >= 50 cm; do not use for whole-tree totals. The authors selected the equations with commercial stem length l as the best ones; these are the ones that use only canonical variables."},{"id":"romero-2020-mv4-husch-power","source":"romero-2020","name":"Commercial stem volume from DBH, Husch power model (MV4)","output":{"quantity":"stem_volume"},"expression":"0.0014095 * D^1.909563","published":{"expression":"0.0014095 * d^1.909563","units":{"d":"cm"},"variables":{"d":"D"},"output_unit":"m3"},"taxon":{"level":"mixed","name":"20 commercial tree species of a managed forest (DBH >= 50 cm)","group":"broadleaf"},"region":{"scope":"site","countries":["BR"],"place":"Fazenda Antimari I and II, Porto Acre, Acre","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":223,"dbh_min_cm":50.4,"dbh_max_cm":149.9,"method":"Nonlinear least squares, V = b0 d^b1"},"evidence":[{"field":"expression","quote":"MV4 0.0014095 * 1.909563 * 2.317 - 1011.52 1.615 -","locator":"Table 3 (β0, β1, RMSE, R2, AIC, MAD, CF)"},{"field":"fit.dbh_min_cm","quote":"Total 223 50.4–149.9 79.6 ± 19.8 0.27–0.89 0.56 ± 0.16","locator":"Table 2 (n, DBH range and mean, wood density range and mean)"}],"check":[{"inputs":{"D":60},"expected":3.5039,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":100},"expected":9.2938,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Nonlinear fit in original units, so no correction factor (printed as \"-\"). Commercial stem volume over bark (Smalian) in m3. Applies to commercial stems only (stump at 30 cm, buttresses removed, crown left in the forest) of trees with DBH >= 50 cm; do not use for whole-tree totals. The authors selected the equations with commercial stem length l as the best ones; these are the ones that use only canonical variables."},{"id":"rufini-2010-sh-r1-fvol-bark","source":"rufini-2010","name":"Cerrado s.s. MG, Stem volume with bark, Schumacher-Hall log, SF 1, 2, 3, 4 sub-basins (region 1)","output":{"quantity":"stem_volume"},"expression":"exp(-9.359090131 + 1.4142164584 * ln(D) + 1.2521751953 * ln(H))","published":{"expression":"exp(-9.359090131 + 1.4142164584 * ln(Dap) + 1.2521751953 * ln(H))","units":{"Dap":"cm","H":"m"},"variables":{"Dap":"D"},"output_unit":"m3"},"taxon":{"level":"mixed","name":"Cerrado sensu stricto tree species (mixed)","group":"mixed"},"region":{"scope":"regional","countries":["BR"],"place":"Minas Gerais, Sao Francisco river basin, SF 1, 2, 3, 4 sub-basins (region 1)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":157,"r2":0.9435,"method":"log-transformed linear regression (Schumacher-Hall log) on Huber rigorous cubing data"},"evidence":[{"field":"expression","quote":"Ln(VFcc) = -9,359090131 + 1,4142164584* Ln(Dap) + 1,2521751953 * Ln(H)","locator":"Table 1 (selected equations by region)"},{"field":"fit.n_trees","quote":"157 árvores para a região 1","locator":"2.2 Base de dados, p. 2"}],"check":[{"inputs":{"D":5,"H":3},"expected":0.00332149,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":5},"expected":0.0167822,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":8},"expected":0.0805682,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap, H and volume units are not spelled out beside the model; read as Dap in cm (derived from girth in cm at 1.30 m), total height H in m, volume in m3 (Table headings give Syx in m3); magnitudes are consistent with these units. No back-transformation correction factor is stated, so none is applied. R2 printed as a percentage. Stem volume ('fuste') excludes branches."},{"id":"rufini-2010-sh-r1-fvol-nobark","source":"rufini-2010","name":"Cerrado s.s. MG, Stem volume without bark, Schumacher-Hall log, SF 1, 2, 3, 4 sub-basins (region 1)","output":{"quantity":"stem_volume"},"expression":"exp(-9.8952037838 + 1.3636681218 * ln(D) + 1.4676421551 * ln(H))","published":{"expression":"exp(-9.8952037838 + 1.3636681218 * ln(Dap) + 1.4676421551 * ln(H))","units":{"Dap":"cm","H":"m"},"variables":{"Dap":"D"},"output_unit":"m3"},"taxon":{"level":"mixed","name":"Cerrado sensu stricto tree species (mixed)","group":"mixed"},"region":{"scope":"regional","countries":["BR"],"place":"Minas Gerais, Sao Francisco river basin, SF 1, 2, 3, 4 sub-basins (region 1)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":157,"r2":0.9427,"method":"log-transformed linear regression (Schumacher-Hall log) on Huber rigorous cubing data"},"evidence":[{"field":"expression","quote":"Ln(VFsc) = -9,8952037838 + 1,3636681218 * Ln(Dap) + 1,4676421551 * Ln(H)","locator":"Table 1 (selected equations by region)"},{"field":"fit.n_trees","quote":"157 árvores para a região 1","locator":"2.2 Base de dados, p. 2"}],"check":[{"inputs":{"D":5,"H":3},"expected":0.00226973,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":5},"expected":0.0123616,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":8},"expected":0.0634094,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap, H and volume units are not spelled out beside the model; read as Dap in cm (derived from girth in cm at 1.30 m), total height H in m, volume in m3 (Table headings give Syx in m3); magnitudes are consistent with these units. No back-transformation correction factor is stated, so none is applied. R2 printed as a percentage. Volume without bark ('sem casca'). Stem volume ('fuste') excludes branches."},{"id":"rufini-2010-sh-r1-tvol-bark","source":"rufini-2010","name":"Cerrado s.s. MG, Total volume with bark, Schumacher-Hall log, SF 1, 2, 3, 4 sub-basins (region 1)","output":{"quantity":"total_volume"},"expression":"exp(-9.8295559061 + 2.352792258 * ln(D) + 0.6087571437 * ln(H))","published":{"expression":"exp(-9.8295559061 + 2.352792258 * ln(Dap) + 0.6087571437 * ln(H))","units":{"Dap":"cm","H":"m"},"variables":{"Dap":"D"},"output_unit":"m3"},"taxon":{"level":"mixed","name":"Cerrado sensu stricto tree species (mixed)","group":"mixed"},"region":{"scope":"regional","countries":["BR"],"place":"Minas Gerais, Sao Francisco river basin, SF 1, 2, 3, 4 sub-basins (region 1)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":157,"r2":0.9863,"method":"log-transformed linear regression (Schumacher-Hall log) on Huber rigorous cubing data"},"evidence":[{"field":"expression","quote":"Ln(VTcc) = -9,8295559061 + 2,352792258 * Ln(Dap) + 0,6087571437 * Ln(H)","locator":"Table 1 (selected equations by region)"},{"field":"fit.n_trees","quote":"157 árvores para a região 1","locator":"2.2 Base de dados, p. 2"}],"check":[{"inputs":{"D":5,"H":3},"expected":0.00463511,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":5},"expected":0.0323127,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":8},"expected":0.219732,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap, H and volume units are not spelled out beside the model; read as Dap in cm (derived from girth in cm at 1.30 m), total height H in m, volume in m3 (Table headings give Syx in m3); magnitudes are consistent with these units. No back-transformation correction factor is stated, so none is applied. R2 printed as a percentage. Total volume includes stem and branches down to 3 cm diameter."},{"id":"rufini-2010-sh-r1-tvol-nobark","source":"rufini-2010","name":"Cerrado s.s. MG, Total volume without bark, Schumacher-Hall log, SF 1, 2, 3, 4 sub-basins (region 1)","output":{"quantity":"total_volume"},"expression":"exp(-10.3656695589 + 2.302243921 * ln(D) + 0.8242241035 * ln(H))","published":{"expression":"exp(-10.3656695589 + 2.302243921 * ln(Dap) + 0.8242241035 * ln(H))","units":{"Dap":"cm","H":"m"},"variables":{"Dap":"D"},"output_unit":"m3"},"taxon":{"level":"mixed","name":"Cerrado sensu stricto tree species (mixed)","group":"mixed"},"region":{"scope":"regional","countries":["BR"],"place":"Minas Gerais, Sao Francisco river basin, SF 1, 2, 3, 4 sub-basins (region 1)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":157,"r2":0.9848,"method":"log-transformed linear regression (Schumacher-Hall log) on Huber rigorous cubing data"},"evidence":[{"field":"expression","quote":"Ln(VTsc) = -10,3656695589 + 2,302243921 * Ln(Dap) + 0,8242241035 * Ln(H)","locator":"Table 1 (selected equations by region)"},{"field":"fit.n_trees","quote":"157 árvores para a região 1","locator":"2.2 Base de dados, p. 2"}],"check":[{"inputs":{"D":5,"H":3},"expected":0.00316739,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":5},"expected":0.0238012,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":8},"expected":0.172935,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap, H and volume units are not spelled out beside the model; read as Dap in cm (derived from girth in cm at 1.30 m), total height H in m, volume in m3 (Table headings give Syx in m3); magnitudes are consistent with these units. No back-transformation correction factor is stated, so none is applied. R2 printed as a percentage. Volume without bark ('sem casca'). Total volume includes stem and branches down to 3 cm diameter. Table 2 (combination 1, region 1 alone) prints this same model with slightly different coefficients (-10,3522044532 + 2,2930636383 * Ln(Dap) + 0,8312726915 * Ln(H), R2 98,44%); the Table 1 values are kept here. The two differ by under 1% in predicted volume."},{"id":"rufini-2010-sh-r2-fvol-bark","source":"rufini-2010","name":"Cerrado s.s. MG, Stem volume with bark, Schumacher-Hall log, SF 5, 6, 10 sub-basins (region 2)","output":{"quantity":"stem_volume"},"expression":"exp(-9.4778588031 + 1.5987243415 * ln(D) + 1.0831591575 * ln(H))","published":{"expression":"exp(-9.4778588031 + 1.5987243415 * ln(Dap) + 1.0831591575 * ln(H))","units":{"Dap":"cm","H":"m"},"variables":{"Dap":"D"},"output_unit":"m3"},"taxon":{"level":"mixed","name":"Cerrado sensu stricto tree species (mixed)","group":"mixed"},"region":{"scope":"regional","countries":["BR"],"place":"Minas Gerais, Sao Francisco river basin, SF 5, 6, 10 sub-basins (region 2)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":113,"r2":0.9709,"method":"log-transformed linear regression (Schumacher-Hall log) on Huber rigorous cubing data"},"evidence":[{"field":"expression","quote":"Ln(VFcc) = -9,4778588031 + 1,5987243415 * Ln(Dap) + 1,0831591575 * Ln(H)","locator":"Table 1 (selected equations by region)"},{"field":"fit.n_trees","quote":"113 árvores para a região 2","locator":"2.2 Base de dados, p. 2"}],"check":[{"inputs":{"D":5,"H":3},"expected":0.00329668,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":5},"expected":0.0173635,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":8},"expected":0.0874977,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap, H and volume units are not spelled out beside the model; read as Dap in cm (derived from girth in cm at 1.30 m), total height H in m, volume in m3 (Table headings give Syx in m3); magnitudes are consistent with these units. No back-transformation correction factor is stated, so none is applied. R2 printed as a percentage. Stem volume ('fuste') excludes branches."},{"id":"rufini-2010-sh-r2-fvol-nobark","source":"rufini-2010","name":"Cerrado s.s. MG, Stem volume without bark, Schumacher-Hall log, SF 5, 6, 10 sub-basins (region 2)","output":{"quantity":"stem_volume"},"expression":"exp(-9.9796582821 + 1.5264557777 * ln(D) + 1.3249346219 * ln(H))","published":{"expression":"exp(-9.9796582821 + 1.5264557777 * ln(Dap) + 1.3249346219 * ln(H))","units":{"Dap":"cm","H":"m"},"variables":{"Dap":"D"},"output_unit":"m3"},"taxon":{"level":"mixed","name":"Cerrado sensu stricto tree species (mixed)","group":"mixed"},"region":{"scope":"regional","countries":["BR"],"place":"Minas Gerais, Sao Francisco river basin, SF 5, 6, 10 sub-basins (region 2)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":113,"r2":0.9704,"method":"log-transformed linear regression (Schumacher-Hall log) on Huber rigorous cubing data"},"evidence":[{"field":"expression","quote":"Ln(VFsc) = -9,9796582821 + 1,5264557777 * Ln(Dap) + 1,3249346219 * Ln(H)","locator":"Table 1 (selected equations by region)"},{"field":"fit.n_trees","quote":"113 árvores para a região 2","locator":"2.2 Base de dados, p. 2"}],"check":[{"inputs":{"D":5,"H":3},"expected":0.00231735,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":5},"expected":0.0131351,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":8},"expected":0.0705325,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap, H and volume units are not spelled out beside the model; read as Dap in cm (derived from girth in cm at 1.30 m), total height H in m, volume in m3 (Table headings give Syx in m3); magnitudes are consistent with these units. No back-transformation correction factor is stated, so none is applied. R2 printed as a percentage. Volume without bark ('sem casca'). Stem volume ('fuste') excludes branches."},{"id":"rufini-2010-sh-r2-tvol-bark","source":"rufini-2010","name":"Cerrado s.s. MG, Total volume with bark, Schumacher-Hall log, SF 5, 6, 10 sub-basins (region 2)","output":{"quantity":"total_volume"},"expression":"exp(-9.6160446621 + 2.3668524642 * ln(D) + 0.4627242326 * ln(H))","published":{"expression":"exp(-9.6160446621 + 2.3668524642 * ln(Dap) + 0.4627242326 * ln(H))","units":{"Dap":"cm","H":"m"},"variables":{"Dap":"D"},"output_unit":"m3"},"taxon":{"level":"mixed","name":"Cerrado sensu stricto tree species (mixed)","group":"mixed"},"region":{"scope":"regional","countries":["BR"],"place":"Minas Gerais, Sao Francisco river basin, SF 5, 6, 10 sub-basins (region 2)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":113,"r2":0.9874,"method":"log-transformed linear regression (Schumacher-Hall log) on Huber rigorous cubing data"},"evidence":[{"field":"expression","quote":"Ln(VTcc) = -9,6160446621 + 2,3668524642 * Ln(Dap) + 0,4627242326 * Ln(H)","locator":"Table 1 (selected equations by region)"},{"field":"fit.n_trees","quote":"113 árvores para a região 2","locator":"2.2 Base de dados, p. 2"}],"check":[{"inputs":{"D":5,"H":3},"expected":0.00499965,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":5},"expected":0.0326654,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":8},"expected":0.209427,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap, H and volume units are not spelled out beside the model; read as Dap in cm (derived from girth in cm at 1.30 m), total height H in m, volume in m3 (Table headings give Syx in m3); magnitudes are consistent with these units. No back-transformation correction factor is stated, so none is applied. R2 printed as a percentage. Total volume includes stem and branches down to 3 cm diameter."},{"id":"rufini-2010-sh-r2-tvol-nobark","source":"rufini-2010","name":"Cerrado s.s. MG, Total volume without bark, Schumacher-Hall log, SF 5, 6, 10 sub-basins (region 2)","output":{"quantity":"total_volume"},"expression":"exp(-10.1178441412 + 2.2945839 * ln(D) + 0.704499697 * ln(H))","published":{"expression":"exp(-10.1178441412 + 2.2945839 * ln(Dap) + 0.704499697 * ln(H))","units":{"Dap":"cm","H":"m"},"variables":{"Dap":"D"},"output_unit":"m3"},"taxon":{"level":"mixed","name":"Cerrado sensu stricto tree species (mixed)","group":"mixed"},"region":{"scope":"regional","countries":["BR"],"place":"Minas Gerais, Sao Francisco river basin, SF 5, 6, 10 sub-basins (region 2)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":113,"r2":0.9875,"method":"log-transformed linear regression (Schumacher-Hall log) on Huber rigorous cubing data"},"evidence":[{"field":"expression","quote":"Ln(VTsc) = -10,1178441412 + 2,294583900 * Ln(Dap) + 0,704499697 * Ln(H)","locator":"Table 1 (selected equations by region)"},{"field":"fit.n_trees","quote":"113 árvores para a região 2","locator":"2.2 Base de dados, p. 2"}],"check":[{"inputs":{"D":5,"H":3},"expected":0.00351442,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":5},"expected":0.0247107,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":8},"expected":0.168821,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap, H and volume units are not spelled out beside the model; read as Dap in cm (derived from girth in cm at 1.30 m), total height H in m, volume in m3 (Table headings give Syx in m3); magnitudes are consistent with these units. No back-transformation correction factor is stated, so none is applied. R2 printed as a percentage. Volume without bark ('sem casca'). Total volume includes stem and branches down to 3 cm diameter."},{"id":"rufini-2010-sh-r23-fvol-bark","source":"rufini-2010","name":"Cerrado s.s. MG, Stem volume with bark, Schumacher-Hall log, regions 2 and 3 pooled","output":{"quantity":"stem_volume"},"expression":"exp(-9.517097 + 1.635911663 * ln(D) + 1.0633449911 * ln(H))","published":{"expression":"exp(-9.517097 + 1.635911663 * ln(Dap) + 1.0633449911 * ln(H))","units":{"Dap":"cm","H":"m"},"variables":{"Dap":"D"},"output_unit":"m3"},"taxon":{"level":"mixed","name":"Cerrado sensu stricto tree species (mixed)","group":"mixed"},"region":{"scope":"regional","countries":["BR"],"place":"Minas Gerais, Sao Francisco river basin, SF 5, 6, 10 and SF 7, 8, 9 sub-basins (regions 2 and 3 pooled)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"r2":0.9686,"method":"log-transformed linear regression (Schumacher-Hall log) on pooled Huber rigorous cubing data, regions 2 and 3 (identity test accepted)"},"evidence":[{"field":"expression","quote":"Ln(VFcc) = -9,517097 + 1,635911663 * Ln(Dap) + 1,0633449911 * Ln(H)","locator":"Table 2, combination 23"},{"field":"fit.r2","quote":"96,86 (R2 %)","locator":"Table 2, combination 23"}],"check":[{"inputs":{"D":5,"H":3},"expected":0.00329287,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":5},"expected":0.0176171,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":8},"expected":0.0902493,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Pooled fit for regions 2 and 3 after the Graybill identity test found them similar. n for the pooled fit is not printed and is left out. Dap, H and volume units are not spelled out beside the model; read as Dap in cm, H in m, volume in m3 (consistent magnitudes). No back-transformation correction factor is stated, so none is applied. R2 printed as a percentage."},{"id":"rufini-2010-sh-r23-fvol-nobark","source":"rufini-2010","name":"Cerrado s.s. MG, Stem volume without bark, Schumacher-Hall log, regions 2 and 3 pooled","output":{"quantity":"stem_volume"},"expression":"exp(-10.0185310695 + 1.595186012 * ln(D) + 1.256733019 * ln(H))","published":{"expression":"exp(-10.0185310695 + 1.595186012 * ln(Dap) + 1.256733019 * ln(H))","units":{"Dap":"cm","H":"m"},"variables":{"Dap":"D"},"output_unit":"m3"},"taxon":{"level":"mixed","name":"Cerrado sensu stricto tree species (mixed)","group":"mixed"},"region":{"scope":"regional","countries":["BR"],"place":"Minas Gerais, Sao Francisco river basin, SF 5, 6, 10 and SF 7, 8, 9 sub-basins (regions 2 and 3 pooled)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"r2":0.9681,"method":"log-transformed linear regression (Schumacher-Hall log) on pooled Huber rigorous cubing data, regions 2 and 3 (identity test accepted)"},"evidence":[{"field":"expression","quote":"Ln(VFsc) = -10,0185310695 + 1,595186012 * Ln(Dap) + 1,256733019 * Ln(H)","locator":"Table 2, combination 23"},{"field":"fit.r2","quote":"96,81 (R2 %)","locator":"Table 2, combination 23"}],"check":[{"inputs":{"D":5,"H":3},"expected":0.00230998,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":5},"expected":0.0132621,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":8},"expected":0.0723328,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Pooled fit for regions 2 and 3 after the Graybill identity test found them similar. n for the pooled fit is not printed and is left out. Dap, H and volume units are not spelled out beside the model; read as Dap in cm, H in m, volume in m3 (consistent magnitudes). No back-transformation correction factor is stated, so none is applied. R2 printed as a percentage."},{"id":"rufini-2010-sh-r23-tvol-bark","source":"rufini-2010","name":"Cerrado s.s. MG, Total volume with bark, Schumacher-Hall log, regions 2 and 3 pooled","output":{"quantity":"total_volume"},"expression":"exp(-9.6836972937 + 2.404913352 * ln(D) + 0.455585292 * ln(H))","published":{"expression":"exp(-9.6836972937 + 2.404913352 * ln(Dap) + 0.455585292 * ln(H))","units":{"Dap":"cm","H":"m"},"variables":{"Dap":"D"},"output_unit":"m3"},"taxon":{"level":"mixed","name":"Cerrado sensu stricto tree species (mixed)","group":"mixed"},"region":{"scope":"regional","countries":["BR"],"place":"Minas Gerais, Sao Francisco river basin, SF 5, 6, 10 and SF 7, 8, 9 sub-basins (regions 2 and 3 pooled)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"r2":0.9864,"method":"log-transformed linear regression (Schumacher-Hall log) on pooled Huber rigorous cubing data, regions 2 and 3 (identity test accepted)"},"evidence":[{"field":"expression","quote":"Ln(VTcc) = -9,6836972937 + 2,404913352 * Ln(Dap) + 0,455585292 * Ln(H)","locator":"Table 2, combination 23"},{"field":"fit.r2","quote":"98,64 (R2 %)","locator":"Table 2, combination 23"}],"check":[{"inputs":{"D":5,"H":3},"expected":0.00492896,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":5},"expected":0.0329441,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":8},"expected":0.216134,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Pooled fit for regions 2 and 3 after the Graybill identity test found them similar. n for the pooled fit is not printed and is left out. Dap, H and volume units are not spelled out beside the model; read as Dap in cm, H in m, volume in m3 (consistent magnitudes). No back-transformation correction factor is stated, so none is applied. R2 printed as a percentage."},{"id":"rufini-2010-sh-r23-tvol-nobark","source":"rufini-2010","name":"Cerrado s.s. MG, Total volume without bark, Schumacher-Hall log, regions 2 and 3 pooled","output":{"quantity":"total_volume"},"expression":"exp(-10.1851313632 + 2.364187701 * ln(D) + 0.6489733199 * ln(H))","published":{"expression":"exp(-10.1851313632 + 2.364187701 * ln(Dap) + 0.6489733199 * ln(H))","units":{"Dap":"cm","H":"m"},"variables":{"Dap":"D"},"output_unit":"m3"},"taxon":{"level":"mixed","name":"Cerrado sensu stricto tree species (mixed)","group":"mixed"},"region":{"scope":"regional","countries":["BR"],"place":"Minas Gerais, Sao Francisco river basin, SF 5, 6, 10 and SF 7, 8, 9 sub-basins (regions 2 and 3 pooled)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"r2":0.9853,"method":"log-transformed linear regression (Schumacher-Hall log) on pooled Huber rigorous cubing data, regions 2 and 3 (identity test accepted)"},"evidence":[{"field":"expression","quote":"Ln(VTsc) = -10,1851313632 + 2,364187701 * Ln(Dap) + 0,6489733199 * Ln(H)","locator":"Table 2, combination 23"},{"field":"fit.r2","quote":"98,53 (R2 %)","locator":"Table 2, combination 23"}],"check":[{"inputs":{"D":5,"H":3},"expected":0.00345771,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":5},"expected":0.0248001,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":8},"expected":0.173226,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Pooled fit for regions 2 and 3 after the Graybill identity test found them similar. n for the pooled fit is not printed and is left out. Dap, H and volume units are not spelled out beside the model; read as Dap in cm, H in m, volume in m3 (consistent magnitudes). No back-transformation correction factor is stated, so none is applied. R2 printed as a percentage."},{"id":"rufini-2010-sh-r3-fvol-bark","source":"rufini-2010","name":"Cerrado s.s. MG, Stem volume with bark, Schumacher-Hall log, SF 7, 8, 9 sub-basins (region 3)","output":{"quantity":"stem_volume"},"expression":"exp(-9.5167250058 + 1.6443496226 * ln(D) + 1.0583352334 * ln(H))","published":{"expression":"exp(-9.5167250058 + 1.6443496226 * ln(Dap) + 1.0583352334 * ln(H))","units":{"Dap":"cm","H":"m"},"variables":{"Dap":"D"},"output_unit":"m3"},"taxon":{"level":"mixed","name":"Cerrado sensu stricto tree species (mixed)","group":"mixed"},"region":{"scope":"regional","countries":["BR"],"place":"Minas Gerais, Sao Francisco river basin, SF 7, 8, 9 sub-basins (region 3)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":227,"r2":0.9679,"method":"log-transformed linear regression (Schumacher-Hall log) on Huber rigorous cubing data"},"evidence":[{"field":"expression","quote":"Ln(VFcc) = -9,5167250058 + 1,6443496226 * Ln(Dap) + 1,0583352334 * Ln(H)","locator":"Table 1 (selected equations by region)"},{"field":"fit.n_trees","quote":"227 árvores para a região 3","locator":"2.2 Base de dados, p. 2"}],"check":[{"inputs":{"D":5,"H":3},"expected":0.00332081,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":5},"expected":0.0178251,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":8},"expected":0.0916345,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap, H and volume units are not spelled out beside the model; read as Dap in cm (derived from girth in cm at 1.30 m), total height H in m, volume in m3 (Table headings give Syx in m3); magnitudes are consistent with these units. No back-transformation correction factor is stated, so none is applied. R2 printed as a percentage. Stem volume ('fuste') excludes branches."},{"id":"rufini-2010-sh-r3-fvol-nobark","source":"rufini-2010","name":"Cerrado s.s. MG, Stem volume without bark, Schumacher-Hall log, SF 7, 8, 9 sub-basins (region 3)","output":{"quantity":"stem_volume"},"expression":"exp(-10.0174841625 + 1.620757414 * ln(D) + 1.2252977599 * ln(H))","published":{"expression":"exp(-10.0174841625 + 1.620757414 * ln(Dap) + 1.2252977599 * ln(H))","units":{"Dap":"cm","H":"m"},"variables":{"Dap":"D"},"output_unit":"m3"},"taxon":{"level":"mixed","name":"Cerrado sensu stricto tree species (mixed)","group":"mixed"},"region":{"scope":"regional","countries":["BR"],"place":"Minas Gerais, Sao Francisco river basin, SF 7, 8, 9 sub-basins (region 3)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":227,"r2":0.9672,"method":"log-transformed linear regression (Schumacher-Hall log) on Huber rigorous cubing data"},"evidence":[{"field":"expression","quote":"Ln(VFsc) = -10,0174841625 + 1,620757414 * Ln(Dap) + 1,2252977599 * Ln(H)","locator":"Table 1 (selected equations by region)"},{"field":"fit.n_trees","quote":"227 árvores para a região 3","locator":"2.2 Base de dados, p. 2"}],"check":[{"inputs":{"D":5,"H":3},"expected":0.00232776,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":5},"expected":0.0133865,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":8},"expected":0.0732268,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap, H and volume units are not spelled out beside the model; read as Dap in cm (derived from girth in cm at 1.30 m), total height H in m, volume in m3 (Table headings give Syx in m3); magnitudes are consistent with these units. No back-transformation correction factor is stated, so none is applied. R2 printed as a percentage. Volume without bark ('sem casca'). Stem volume ('fuste') excludes branches."},{"id":"rufini-2010-sh-r3-tvol-bark","source":"rufini-2010","name":"Cerrado s.s. MG, Total volume with bark, Schumacher-Hall log, SF 7, 8, 9 sub-basins (region 3)","output":{"quantity":"total_volume"},"expression":"exp(-9.7289673246 + 2.4207715832 * ln(D) + 0.4608810281 * ln(H))","published":{"expression":"exp(-9.7289673246 + 2.4207715832 * ln(Dap) + 0.4608810281 * ln(H))","units":{"Dap":"cm","H":"m"},"variables":{"Dap":"D"},"output_unit":"m3"},"taxon":{"level":"mixed","name":"Cerrado sensu stricto tree species (mixed)","group":"mixed"},"region":{"scope":"regional","countries":["BR"],"place":"Minas Gerais, Sao Francisco river basin, SF 7, 8, 9 sub-basins (region 3)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":227,"r2":0.9864,"method":"log-transformed linear regression (Schumacher-Hall log) on Huber rigorous cubing data"},"evidence":[{"field":"expression","quote":"Ln(VTcc) = -9,7289673246 + 2,4207715832 * Ln(Dap) + 0,4608810281 * Ln(H)","locator":"Table 1 (selected equations by region)"},{"field":"fit.n_trees","quote":"227 árvores para a região 3","locator":"2.2 Base de dados, p. 2"}],"check":[{"inputs":{"D":5,"H":3},"expected":0.00486078,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":5},"expected":0.0329364,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":8},"expected":0.219016,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap, H and volume units are not spelled out beside the model; read as Dap in cm (derived from girth in cm at 1.30 m), total height H in m, volume in m3 (Table headings give Syx in m3); magnitudes are consistent with these units. No back-transformation correction factor is stated, so none is applied. R2 printed as a percentage. Total volume includes stem and branches down to 3 cm diameter."},{"id":"rufini-2010-sh-r3-tvol-nobark","source":"rufini-2010","name":"Cerrado s.s. MG, Total volume without bark, Schumacher-Hall log, SF 7, 8, 9 sub-basins (region 3)","output":{"quantity":"total_volume"},"expression":"exp(-10.2297264813 + 2.397179375 * ln(D) + 0.6278435546 * ln(H))","published":{"expression":"exp(-10.2297264813 + 2.397179375 * ln(Dap) + 0.6278435546 * ln(H))","units":{"Dap":"cm","H":"m"},"variables":{"Dap":"D"},"output_unit":"m3"},"taxon":{"level":"mixed","name":"Cerrado sensu stricto tree species (mixed)","group":"mixed"},"region":{"scope":"regional","countries":["BR"],"place":"Minas Gerais, Sao Francisco river basin, SF 7, 8, 9 sub-basins (region 3)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":227,"r2":0.9846,"method":"log-transformed linear regression (Schumacher-Hall log) on Huber rigorous cubing data"},"evidence":[{"field":"expression","quote":"Ln(VTsc) = -10,2297264813 + 2,397179375 * Ln(Dap) + 0,6278435546 * Ln(H)","locator":"Table 1 (selected equations by region)"},{"field":"fit.n_trees","quote":"227 árvores para a região 3","locator":"2.2 Base de dados, p. 2"}],"check":[{"inputs":{"D":5,"H":3},"expected":0.00340722,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":5},"expected":0.0247349,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":8},"expected":0.17502,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap, H and volume units are not spelled out beside the model; read as Dap in cm (derived from girth in cm at 1.30 m), total height H in m, volume in m3 (Table headings give Syx in m3); magnitudes are consistent with these units. No back-transformation correction factor is stated, so none is applied. R2 printed as a percentage. Volume without bark ('sem casca'). Total volume includes stem and branches down to 3 cm diameter."},{"id":"rufini-2010-spurr-r1-fvol-bark","source":"rufini-2010","name":"Cerrado s.s. MG, Stem volume with bark, Spurr log, SF 1, 2, 3, 4 sub-basins (region 1)","output":{"quantity":"stem_volume"},"expression":"exp(-9.0906864718 + 0.8295402352 * ln(D^2 * H))","published":{"expression":"exp(-9.0906864718 + 0.8295402352 * ln(Dap^2 * H))","units":{"Dap":"cm","H":"m"},"variables":{"Dap":"D"},"output_unit":"m3"},"taxon":{"level":"mixed","name":"Cerrado sensu stricto tree species (mixed)","group":"mixed"},"region":{"scope":"regional","countries":["BR"],"place":"Minas Gerais, Sao Francisco river basin, SF 1, 2, 3, 4 sub-basins (region 1)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":157,"r2":0.9321,"method":"log-transformed linear regression (Spurr log) on Huber rigorous cubing data"},"evidence":[{"field":"expression","quote":"Ln(VFcc) = -9,0906864718 + 0,8295402352 * Ln((Dap^2) * H)","locator":"Table 1 (selected equations by region)"},{"field":"fit.n_trees","quote":"157 árvores para a região 1","locator":"2.2 Base de dados, p. 2"}],"check":[{"inputs":{"D":5,"H":3},"expected":0.00404952,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":5},"expected":0.0195375,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":8},"expected":0.091123,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap, H and volume units are not spelled out beside the model; read as Dap in cm (derived from girth in cm at 1.30 m), total height H in m, volume in m3 (Table headings give Syx in m3); magnitudes are consistent with these units. No back-transformation correction factor is stated, so none is applied. R2 printed as a percentage. Stem volume ('fuste') excludes branches."},{"id":"rufini-2010-spurr-r1-fvol-nobark","source":"rufini-2010","name":"Cerrado s.s. MG, Stem volume without bark, Spurr log, SF 1, 2, 3, 4 sub-basins (region 1)","output":{"quantity":"stem_volume"},"expression":"exp(-9.5082535905 + 0.8583409257 * ln(D^2 * H))","published":{"expression":"exp(-9.5082535905 + 0.8583409257 * ln(Dap^2 * H))","units":{"Dap":"cm","H":"m"},"variables":{"Dap":"D"},"output_unit":"m3"},"taxon":{"level":"mixed","name":"Cerrado sensu stricto tree species (mixed)","group":"mixed"},"region":{"scope":"regional","countries":["BR"],"place":"Minas Gerais, Sao Francisco river basin, SF 1, 2, 3, 4 sub-basins (region 1)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":157,"r2":0.9206,"method":"log-transformed linear regression (Spurr log) on Huber rigorous cubing data"},"evidence":[{"field":"expression","quote":"Ln(VFsc) = -9,5082535905 + 0,8583409257 * Ln((Dap^2) * H)","locator":"Table 1 (selected equations by region)"},{"field":"fit.n_trees","quote":"157 árvores para a região 1","locator":"2.2 Base de dados, p. 2"}],"check":[{"inputs":{"D":5,"H":3},"expected":0.00302037,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":5},"expected":0.0153906,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":8},"expected":0.0757237,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap, H and volume units are not spelled out beside the model; read as Dap in cm (derived from girth in cm at 1.30 m), total height H in m, volume in m3 (Table headings give Syx in m3); magnitudes are consistent with these units. No back-transformation correction factor is stated, so none is applied. R2 printed as a percentage. Volume without bark ('sem casca'). Stem volume ('fuste') excludes branches."},{"id":"rufini-2010-spurr-r1-tvol-bark","source":"rufini-2010","name":"Cerrado s.s. MG, Total volume with bark, Spurr log, SF 1, 2, 3, 4 sub-basins (region 1)","output":{"quantity":"total_volume"},"expression":"exp(-10.1090745528 + 1.0488940347 * ln(D^2 * H))","published":{"expression":"exp(-10.1090745528 + 1.0488940347 * ln(Dap^2 * H))","units":{"Dap":"cm","H":"m"},"variables":{"Dap":"D"},"output_unit":"m3"},"taxon":{"level":"mixed","name":"Cerrado sensu stricto tree species (mixed)","group":"mixed"},"region":{"scope":"regional","countries":["BR"],"place":"Minas Gerais, Sao Francisco river basin, SF 1, 2, 3, 4 sub-basins (region 1)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":157,"r2":0.9781,"method":"log-transformed linear regression (Spurr log) on Huber rigorous cubing data"},"evidence":[{"field":"expression","quote":"Ln(VTcc) = -10,1090745528 + 1,0488940347 * Ln((Dap^2) * H)","locator":"Table 1 (selected equations by region)"},{"field":"fit.n_trees","quote":"157 árvores para a região 1","locator":"2.2 Base de dados, p. 2"}],"check":[{"inputs":{"D":5,"H":3},"expected":0.00377073,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":5},"expected":0.0275815,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":8},"expected":0.193293,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap, H and volume units are not spelled out beside the model; read as Dap in cm (derived from girth in cm at 1.30 m), total height H in m, volume in m3 (Table headings give Syx in m3); magnitudes are consistent with these units. No back-transformation correction factor is stated, so none is applied. R2 printed as a percentage. Total volume includes stem and branches down to 3 cm diameter."},{"id":"rufini-2010-spurr-r1-tvol-nobark","source":"rufini-2010","name":"Cerrado s.s. MG, Total volume without bark, Spurr log, SF 1, 2, 3, 4 sub-basins (region 1)","output":{"quantity":"total_volume"},"expression":"exp(-10.5266416714 + 1.0776947252 * ln(D^2 * H))","published":{"expression":"exp(-10.5266416714 + 1.0776947252 * ln(Dap^2 * H))","units":{"Dap":"cm","H":"m"},"variables":{"Dap":"D"},"output_unit":"m3"},"taxon":{"level":"mixed","name":"Cerrado sensu stricto tree species (mixed)","group":"mixed"},"region":{"scope":"regional","countries":["BR"],"place":"Minas Gerais, Sao Francisco river basin, SF 1, 2, 3, 4 sub-basins (region 1)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":157,"r2":0.9823,"method":"log-transformed linear regression (Spurr log) on Huber rigorous cubing data"},"evidence":[{"field":"expression","quote":"Ln(VTsc) = -10,5266416714 + 1,0776947252 * Ln((Dap^2) * H)","locator":"Table 1 (selected equations by region)"},{"field":"fit.n_trees","quote":"157 árvores para a região 1","locator":"2.2 Base de dados, p. 2"}],"check":[{"inputs":{"D":5,"H":3},"expected":0.00281243,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":5},"expected":0.0217272,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":8},"expected":0.160627,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap, H and volume units are not spelled out beside the model; read as Dap in cm (derived from girth in cm at 1.30 m), total height H in m, volume in m3 (Table headings give Syx in m3); magnitudes are consistent with these units. No back-transformation correction factor is stated, so none is applied. R2 printed as a percentage. Volume without bark ('sem casca'). Total volume includes stem and branches down to 3 cm diameter."},{"id":"rufini-2010-spurr-r2-fvol-bark","source":"rufini-2010","name":"Cerrado s.s. MG, Stem volume with bark, Spurr log, SF 5, 6, 10 sub-basins (region 2)","output":{"quantity":"stem_volume"},"expression":"exp(-9.4115232717 + 0.8668856693 * ln(D^2 * H))","published":{"expression":"exp(-9.4115232717 + 0.8668856693 * ln(Dap^2 * H))","units":{"Dap":"cm","H":"m"},"variables":{"Dap":"D"},"output_unit":"m3"},"taxon":{"level":"mixed","name":"Cerrado sensu stricto tree species (mixed)","group":"mixed"},"region":{"scope":"regional","countries":["BR"],"place":"Minas Gerais, Sao Francisco river basin, SF 5, 6, 10 sub-basins (region 2)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":113,"r2":0.9698,"method":"log-transformed linear regression (Spurr log) on Huber rigorous cubing data"},"evidence":[{"field":"expression","quote":"Ln(VFcc) = -9,4115232717 + 0,8668856693 * Ln((Dap^2) * H)","locator":"Table 1 (selected equations by region)"},{"field":"fit.n_trees","quote":"113 árvores para a região 2","locator":"2.2 Base de dados, p. 2"}],"check":[{"inputs":{"D":5,"H":3},"expected":0.00345216,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":5},"expected":0.0178783,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":8},"expected":0.08937,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap, H and volume units are not spelled out beside the model; read as Dap in cm (derived from girth in cm at 1.30 m), total height H in m, volume in m3 (Table headings give Syx in m3); magnitudes are consistent with these units. No back-transformation correction factor is stated, so none is applied. R2 printed as a percentage. Stem volume ('fuste') excludes branches."},{"id":"rufini-2010-spurr-r2-fvol-nobark","source":"rufini-2010","name":"Cerrado s.s. MG, Stem volume without bark, Spurr log, SF 5, 6, 10 sub-basins (region 2)","output":{"quantity":"stem_volume"},"expression":"exp(-9.84836332 + 0.8968741413 * ln(D^2 * H))","published":{"expression":"exp(-9.84836332 + 0.8968741413 * ln(Dap^2 * H))","units":{"Dap":"cm","H":"m"},"variables":{"Dap":"D"},"output_unit":"m3"},"taxon":{"level":"mixed","name":"Cerrado sensu stricto tree species (mixed)","group":"mixed"},"region":{"scope":"regional","countries":["BR"],"place":"Minas Gerais, Sao Francisco river basin, SF 5, 6, 10 sub-basins (region 2)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":113,"r2":0.9659,"method":"log-transformed linear regression (Spurr log) on Huber rigorous cubing data"},"evidence":[{"field":"expression","quote":"Ln(VFsc) = -9,84836332 + 0,8968741413 * Ln((Dap^2) * H)","locator":"Table 1 (selected equations by region)"},{"field":"fit.n_trees","quote":"113 árvores para a região 2","locator":"2.2 Base de dados, p. 2"}],"check":[{"inputs":{"D":5,"H":3},"expected":0.00253866,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":5},"expected":0.013917,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":8},"expected":0.073551,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap, H and volume units are not spelled out beside the model; read as Dap in cm (derived from girth in cm at 1.30 m), total height H in m, volume in m3 (Table headings give Syx in m3); magnitudes are consistent with these units. No back-transformation correction factor is stated, so none is applied. R2 printed as a percentage. Volume without bark ('sem casca'). Stem volume ('fuste') excludes branches."},{"id":"rufini-2010-spurr-r2-tvol-bark","source":"rufini-2010","name":"Cerrado s.s. MG, Total volume with bark, Spurr log, SF 5, 6, 10 sub-basins (region 2)","output":{"quantity":"total_volume"},"expression":"exp(-9.7845036394 + 1.0119504143 * ln(D^2 * H))","published":{"expression":"exp(-9.7845036394 + 1.0119504143 * ln(Dap^2 * H))","units":{"Dap":"cm","H":"m"},"variables":{"Dap":"D"},"output_unit":"m3"},"taxon":{"level":"mixed","name":"Cerrado sensu stricto tree species (mixed)","group":"mixed"},"region":{"scope":"regional","countries":["BR"],"place":"Minas Gerais, Sao Francisco river basin, SF 5, 6, 10 sub-basins (region 2)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":113,"r2":0.9814,"method":"log-transformed linear regression (Spurr log) on Huber rigorous cubing data"},"evidence":[{"field":"expression","quote":"Ln(VTcc) = -9,7845036394 + 1,0119504143 * Ln((Dap^2) * H)","locator":"Table 1 (selected equations by region)"},{"field":"fit.n_trees","quote":"113 árvores para a região 2","locator":"2.2 Base de dados, p. 2"}],"check":[{"inputs":{"D":5,"H":3},"expected":0.00444747,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":5},"expected":0.0303297,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":8},"expected":0.198464,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap, H and volume units are not spelled out beside the model; read as Dap in cm (derived from girth in cm at 1.30 m), total height H in m, volume in m3 (Table headings give Syx in m3); magnitudes are consistent with these units. No back-transformation correction factor is stated, so none is applied. R2 printed as a percentage. Total volume includes stem and branches down to 3 cm diameter."},{"id":"rufini-2010-spurr-r2-tvol-nobark","source":"rufini-2010","name":"Cerrado s.s. MG, Total volume without bark, Spurr log, SF 5, 6, 10 sub-basins (region 2)","output":{"quantity":"total_volume"},"expression":"exp(-10.2213436877 + 1.0419388864 * ln(D^2 * H))","published":{"expression":"exp(-10.2213436877 + 1.0419388864 * ln(Dap^2 * H))","units":{"Dap":"cm","H":"m"},"variables":{"Dap":"D"},"output_unit":"m3"},"taxon":{"level":"mixed","name":"Cerrado sensu stricto tree species (mixed)","group":"mixed"},"region":{"scope":"regional","countries":["BR"],"place":"Minas Gerais, Sao Francisco river basin, SF 5, 6, 10 sub-basins (region 2)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":113,"r2":0.9854,"method":"log-transformed linear regression (Spurr log) on Huber rigorous cubing data"},"evidence":[{"field":"expression","quote":"Ln(VTsc) = -10,2213436877 + 1,0419388864 * Ln((Dap^2) * H)","locator":"Table 1 (selected equations by region)"},{"field":"fit.n_trees","quote":"113 árvores para a região 2","locator":"2.2 Base de dados, p. 2"}],"check":[{"inputs":{"D":5,"H":3},"expected":0.00327059,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":5},"expected":0.0236096,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":8},"expected":0.163335,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap, H and volume units are not spelled out beside the model; read as Dap in cm (derived from girth in cm at 1.30 m), total height H in m, volume in m3 (Table headings give Syx in m3); magnitudes are consistent with these units. No back-transformation correction factor is stated, so none is applied. R2 printed as a percentage. Volume without bark ('sem casca'). Total volume includes stem and branches down to 3 cm diameter."},{"id":"rufini-2010-spurr-r3-fvol-bark","source":"rufini-2010","name":"Cerrado s.s. MG, Stem volume with bark, Spurr log, SF 7, 8, 9 sub-basins (region 3)","output":{"quantity":"stem_volume"},"expression":"exp(-9.4609802313 + 0.8777634851 * ln(D^2 * H))","published":{"expression":"exp(-9.4609802313 + 0.8777634851 * ln(Dap^2 * H))","units":{"Dap":"cm","H":"m"},"variables":{"Dap":"D"},"output_unit":"m3"},"taxon":{"level":"mixed","name":"Cerrado sensu stricto tree species (mixed)","group":"mixed"},"region":{"scope":"regional","countries":["BR"],"place":"Minas Gerais, Sao Francisco river basin, SF 7, 8, 9 sub-basins (region 3)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":227,"r2":0.9673,"method":"log-transformed linear regression (Spurr log) on Huber rigorous cubing data"},"evidence":[{"field":"expression","quote":"Ln(VFcc) = -9,4609802313 + 0,8777634851 * Ln((Dap^2) * H)","locator":"Table 1 (selected equations by region)"},{"field":"fit.n_trees","quote":"227 árvores para a região 3","locator":"2.2 Base de dados, p. 2"}],"check":[{"inputs":{"D":5,"H":3},"expected":0.00344357,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":5},"expected":0.0182056,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":8},"expected":0.0928627,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap, H and volume units are not spelled out beside the model; read as Dap in cm (derived from girth in cm at 1.30 m), total height H in m, volume in m3 (Table headings give Syx in m3); magnitudes are consistent with these units. No back-transformation correction factor is stated, so none is applied. R2 printed as a percentage. Stem volume ('fuste') excludes branches."},{"id":"rufini-2010-spurr-r3-fvol-nobark","source":"rufini-2010","name":"Cerrado s.s. MG, Stem volume without bark, Spurr log, SF 7, 8, 9 sub-basins (region 3)","output":{"quantity":"stem_volume"},"expression":"exp(-9.9195440894 + 0.9080445212 * ln(D^2 * H))","published":{"expression":"exp(-9.9195440894 + 0.9080445212 * ln(Dap^2 * H))","units":{"Dap":"cm","H":"m"},"variables":{"Dap":"D"},"output_unit":"m3"},"taxon":{"level":"mixed","name":"Cerrado sensu stricto tree species (mixed)","group":"mixed"},"region":{"scope":"regional","countries":["BR"],"place":"Minas Gerais, Sao Francisco river basin, SF 7, 8, 9 sub-basins (region 3)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":227,"r2":0.965,"method":"log-transformed linear regression (Spurr log) on Huber rigorous cubing data"},"evidence":[{"field":"expression","quote":"Ln(VFsc) = -9,9195440894 + 0,9080445212 * Ln((Dap^2) * H)","locator":"Table 1 (selected equations by region)"},{"field":"fit.n_trees","quote":"227 árvores para a região 3","locator":"2.2 Base de dados, p. 2"}],"check":[{"inputs":{"D":5,"H":3},"expected":0.00248105,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":5},"expected":0.0138925,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":8},"expected":0.0749599,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap, H and volume units are not spelled out beside the model; read as Dap in cm (derived from girth in cm at 1.30 m), total height H in m, volume in m3 (Table headings give Syx in m3); magnitudes are consistent with these units. No back-transformation correction factor is stated, so none is applied. R2 printed as a percentage. Volume without bark ('sem casca'). Stem volume ('fuste') excludes branches."},{"id":"rufini-2010-spurr-r3-tvol-bark","source":"rufini-2010","name":"Cerrado s.s. MG, Total volume with bark, Spurr log, SF 7, 8, 9 sub-basins (region 3)","output":{"quantity":"total_volume"},"expression":"exp(-9.9058850892 + 1.033963445 * ln(D^2 * H))","published":{"expression":"exp(-9.9058850892 + 1.033963445 * ln(Dap^2 * H))","units":{"Dap":"cm","H":"m"},"variables":{"Dap":"D"},"output_unit":"m3"},"taxon":{"level":"mixed","name":"Cerrado sensu stricto tree species (mixed)","group":"mixed"},"region":{"scope":"regional","countries":["BR"],"place":"Minas Gerais, Sao Francisco river basin, SF 7, 8, 9 sub-basins (region 3)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":227,"r2":0.9804,"method":"log-transformed linear regression (Spurr log) on Huber rigorous cubing data"},"evidence":[{"field":"expression","quote":"Ln(VTcc) = -9,9058850892 + 1,033963445 * Ln((Dap^2) * H)","locator":"Table 1 (selected equations by region)"},{"field":"fit.n_trees","quote":"227 árvores para a região 3","locator":"2.2 Base de dados, p. 2"}],"check":[{"inputs":{"D":5,"H":3},"expected":0.00433185,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":5},"expected":0.030801,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":8},"expected":0.209955,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap, H and volume units are not spelled out beside the model; read as Dap in cm (derived from girth in cm at 1.30 m), total height H in m, volume in m3 (Table headings give Syx in m3); magnitudes are consistent with these units. No back-transformation correction factor is stated, so none is applied. R2 printed as a percentage. Total volume includes stem and branches down to 3 cm diameter."},{"id":"rufini-2010-spurr-r3-tvol-nobark","source":"rufini-2010","name":"Cerrado s.s. MG, Total volume without bark, Spurr log, SF 7, 8, 9 sub-basins (region 3)","output":{"quantity":"total_volume"},"expression":"exp(-10.3644489473 + 1.064244481 * ln(D^2 * H))","published":{"expression":"exp(-10.3644489473 + 1.064244481 * ln(Dap^2 * H))","units":{"Dap":"cm","H":"m"},"variables":{"Dap":"D"},"output_unit":"m3"},"taxon":{"level":"mixed","name":"Cerrado sensu stricto tree species (mixed)","group":"mixed"},"region":{"scope":"regional","countries":["BR"],"place":"Minas Gerais, Sao Francisco river basin, SF 7, 8, 9 sub-basins (region 3)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":227,"r2":0.9814,"method":"log-transformed linear regression (Spurr log) on Huber rigorous cubing data"},"evidence":[{"field":"expression","quote":"Ln(VTsc) = -10,3644489473 + 1,064244481 * Ln((Dap^2) * H)","locator":"Table 1 (selected equations by region)"},{"field":"fit.n_trees","quote":"227 árvores para a região 3","locator":"2.2 Base de dados, p. 2"}],"check":[{"inputs":{"D":5,"H":3},"expected":0.00312105,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":5},"expected":0.023504,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":8},"expected":0.169478,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dap, H and volume units are not spelled out beside the model; read as Dap in cm (derived from girth in cm at 1.30 m), total height H in m, volume in m3 (Table headings give Syx in m3); magnitudes are consistent with these units. No back-transformation correction factor is stated, so none is applied. R2 printed as a percentage. Volume without bark ('sem casca'). Total volume includes stem and branches down to 3 cm diameter."},{"id":"ruiz-aquino-2014-crassifolia-agb","source":"ruiz-aquino-2014","name":"Quercus crassifolia, total aboveground biomass (Eq. 4, D²H)","output":{"quantity":"agb"},"expression":"exp(-2.8664 + 0.9276 * ln(D^2 * H))","published":{"expression":"exp(-2.8664 + 0.9276 * ln(DN^2 * AT))","units":{"DN":"cm","AT":"m"},"variables":{"DN":"D","AT":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus crassifolia Humb. & Bonpl.","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Ixtlán de Juárez, Oaxaca","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":16,"dbh_min_cm":5,"dbh_max_cm":31,"h_min_m":7.2,"h_max_m":25,"method":"Nonlinear exponential model (Eq. 4) fitted by SAS PROC MODEL; no correction factor stated"},"evidence":[{"field":"expression","quote":"y = e^[−β0+β1 ln(DN²×AT)] (4); β0 = 2,8664, β1 = 0,9276","locator":"Table 5, Eq. 4"},{"field":"fit.n_trees","quote":"Se muestrearon 16 árboles por cada especie","locator":"Resumen / Table 2"}],"check":[{"inputs":{"D":12.8,"H":12.5},"expected":67.1008,"origin":"computed","note":"computed from the published form (Tables 4-7 coefficients, minus sign on β0)"},{"inputs":{"D":23.2,"H":19.7},"expected":308.417,"origin":"computed","note":"computed from the published form (Tables 4-7 coefficients, minus sign on β0)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"The paper prints the model as e^[−β0 + β1 ln(DN² × AT)] with the tabulated β0 positive; applied with the minus sign (it also matches the paper's biomass expansion factor Eq. 12). Dry mass at 100 °C; stem includes bark. Adjusted R2 (not stored): 0.9825."},{"id":"ruiz-aquino-2014-crassifolia-branch","source":"ruiz-aquino-2014","name":"Quercus crassifolia, branch biomass (Eq. 4, D²H)","output":{"quantity":"branch_biomass"},"expression":"exp(-6.2523 + 1.0953 * ln(D^2 * H))","published":{"expression":"exp(-6.2523 + 1.0953 * ln(DN^2 * AT))","units":{"DN":"cm","AT":"m"},"variables":{"DN":"D","AT":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus crassifolia Humb. & Bonpl.","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Ixtlán de Juárez, Oaxaca","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":16,"dbh_min_cm":5,"dbh_max_cm":31,"h_min_m":7.2,"h_max_m":25,"method":"Nonlinear exponential model (Eq. 4) fitted by SAS PROC MODEL; no correction factor stated"},"evidence":[{"field":"expression","quote":"y = e^[−β0+β1 ln(DN²×AT)] (4); β0 = 6,2523, β1 = 1,0953","locator":"Table 7"},{"field":"fit.n_trees","quote":"Se muestrearon 16 árboles por cada especie","locator":"Resumen / Table 2"}],"check":[{"inputs":{"D":12.8,"H":12.5},"expected":8.15756,"origin":"computed","note":"computed from the published form (Tables 4-7 coefficients, minus sign on β0)"},{"inputs":{"D":23.2,"H":19.7},"expected":49.4001,"origin":"computed","note":"computed from the published form (Tables 4-7 coefficients, minus sign on β0)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"The paper prints the model as e^[−β0 + β1 ln(DN² × AT)] with the tabulated β0 positive; applied with the minus sign (it also matches the paper's biomass expansion factor Eq. 12). Dry mass at 100 °C; stem includes bark. Adjusted R2 (not stored): 0.956."},{"id":"ruiz-aquino-2014-crassifolia-foliage","source":"ruiz-aquino-2014","name":"Quercus crassifolia, foliage biomass (Eq. 4, D²H)","output":{"quantity":"foliage_biomass"},"expression":"exp(-9.6246 + 1.2118 * ln(D^2 * H))","published":{"expression":"exp(-9.6246 + 1.2118 * ln(DN^2 * AT))","units":{"DN":"cm","AT":"m"},"variables":{"DN":"D","AT":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus crassifolia Humb. & Bonpl.","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Ixtlán de Juárez, Oaxaca","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":16,"dbh_min_cm":5,"dbh_max_cm":31,"h_min_m":7.2,"h_max_m":25,"method":"Nonlinear exponential model (Eq. 4) fitted by SAS PROC MODEL; no correction factor stated"},"evidence":[{"field":"expression","quote":"y = e^[−β0+β1 ln(DN²×AT)] (4); β0 = 9,6246, β1 = 1,2118","locator":"Table 7"},{"field":"fit.n_trees","quote":"Se muestrearon 16 árboles por cada especie","locator":"Resumen / Table 2"}],"check":[{"inputs":{"D":12.8,"H":12.5},"expected":0.680392,"origin":"computed","note":"computed from the published form (Tables 4-7 coefficients, minus sign on β0)"},{"inputs":{"D":23.2,"H":19.7},"expected":4.99023,"origin":"computed","note":"computed from the published form (Tables 4-7 coefficients, minus sign on β0)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"The paper prints the model as e^[−β0 + β1 ln(DN² × AT)] with the tabulated β0 positive; applied with the minus sign (it also matches the paper's biomass expansion factor Eq. 12). Dry mass at 100 °C; stem includes bark. Adjusted R2 (not stored): 0.9887."},{"id":"ruiz-aquino-2014-crassifolia-stem","source":"ruiz-aquino-2014","name":"Quercus crassifolia, stem biomass (Eq. 4, D²H)","output":{"quantity":"stem_biomass"},"expression":"exp(-2.6861 + 0.8872 * ln(D^2 * H))","published":{"expression":"exp(-2.6861 + 0.8872 * ln(DN^2 * AT))","units":{"DN":"cm","AT":"m"},"variables":{"DN":"D","AT":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus crassifolia Humb. & Bonpl.","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Ixtlán de Juárez, Oaxaca","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":16,"dbh_min_cm":5,"dbh_max_cm":31,"h_min_m":7.2,"h_max_m":25,"method":"Nonlinear exponential model (Eq. 4) fitted by SAS PROC MODEL; no correction factor stated"},"evidence":[{"field":"expression","quote":"y = e^[−β0+β1 ln(DN²×AT)] (4); β0 = 2,6861, β1 = 0,8872","locator":"Table 7"},{"field":"fit.n_trees","quote":"Se muestrearon 16 árboles por cada especie","locator":"Resumen / Table 2"}],"check":[{"inputs":{"D":12.8,"H":12.5},"expected":59.0546,"origin":"computed","note":"computed from the published form (Tables 4-7 coefficients, minus sign on β0)"},{"inputs":{"D":23.2,"H":19.7},"expected":253.988,"origin":"computed","note":"computed from the published form (Tables 4-7 coefficients, minus sign on β0)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"The paper prints the model as e^[−β0 + β1 ln(DN² × AT)] with the tabulated β0 positive; applied with the minus sign (it also matches the paper's biomass expansion factor Eq. 12). Dry mass at 100 °C; stem includes bark. Adjusted R2 (not stored): 0.979."},{"id":"ruiz-aquino-2014-laurina-agb","source":"ruiz-aquino-2014","name":"Quercus laurina, total aboveground biomass (Eq. 4, D²H)","output":{"quantity":"agb"},"expression":"exp(-4.3375 + 1.076 * ln(D^2 * H))","published":{"expression":"exp(-4.3375 + 1.076 * ln(DN^2 * AT))","units":{"DN":"cm","AT":"m"},"variables":{"DN":"D","AT":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus laurina Humb. & Bonpl.","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Ixtlán de Juárez, Oaxaca","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":16,"dbh_min_cm":6,"dbh_max_cm":31,"h_min_m":9.6,"h_max_m":25.5,"method":"Nonlinear exponential model (Eq. 4) fitted by SAS PROC MODEL; no correction factor stated"},"evidence":[{"field":"expression","quote":"y = e^[−β0+β1 ln(DN²×AT)] (4); β0 = 4,3375, β1 = 1,076","locator":"Table 4, Eq. 4"},{"field":"fit.n_trees","quote":"Se muestrearon 16 árboles por cada especie","locator":"Resumen / Table 2"}],"check":[{"inputs":{"D":13.5,"H":14.4},"expected":62.3913,"origin":"computed","note":"computed from the published form (Tables 4-7 coefficients, minus sign on β0)"},{"inputs":{"D":23.5,"H":20.7},"expected":303.927,"origin":"computed","note":"computed from the published form (Tables 4-7 coefficients, minus sign on β0)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"The paper prints the model as e^[−β0 + β1 ln(DN² × AT)] with the tabulated β0 positive; applied with the minus sign (it also matches the paper's biomass expansion factor Eq. 12). Dry mass at 100 °C; stem includes bark. Adjusted R2 (not stored): 0.9914."},{"id":"ruiz-aquino-2014-laurina-branch","source":"ruiz-aquino-2014","name":"Quercus laurina, branch biomass (Eq. 4, D²H)","output":{"quantity":"branch_biomass"},"expression":"exp(-7.3582 + 1.1962 * ln(D^2 * H))","published":{"expression":"exp(-7.3582 + 1.1962 * ln(DN^2 * AT))","units":{"DN":"cm","AT":"m"},"variables":{"DN":"D","AT":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus laurina Humb. & Bonpl.","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Ixtlán de Juárez, Oaxaca","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":16,"dbh_min_cm":6,"dbh_max_cm":31,"h_min_m":9.6,"h_max_m":25.5,"method":"Nonlinear exponential model (Eq. 4) fitted by SAS PROC MODEL; no correction factor stated"},"evidence":[{"field":"expression","quote":"y = e^[−β0+β1 ln(DN²×AT)] (4); β0 = 7,3582, β1 = 1,1962","locator":"Table 6"},{"field":"fit.n_trees","quote":"Se muestrearon 16 árboles por cada especie","locator":"Resumen / Table 2"}],"check":[{"inputs":{"D":13.5,"H":14.4},"expected":7.83823,"origin":"computed","note":"computed from the published form (Tables 4-7 coefficients, minus sign on β0)"},{"inputs":{"D":23.5,"H":20.7},"expected":45.5702,"origin":"computed","note":"computed from the published form (Tables 4-7 coefficients, minus sign on β0)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"The paper prints the model as e^[−β0 + β1 ln(DN² × AT)] with the tabulated β0 positive; applied with the minus sign (it also matches the paper's biomass expansion factor Eq. 12). Dry mass at 100 °C; stem includes bark. Adjusted R2 (not stored): 0.9864."},{"id":"ruiz-aquino-2014-laurina-foliage","source":"ruiz-aquino-2014","name":"Quercus laurina, foliage biomass (Eq. 4, D²H)","output":{"quantity":"foliage_biomass"},"expression":"exp(-9.1315 + 1.1801 * ln(D^2 * H))","published":{"expression":"exp(-9.1315 + 1.1801 * ln(DN^2 * AT))","units":{"DN":"cm","AT":"m"},"variables":{"DN":"D","AT":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus laurina Humb. & Bonpl.","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Ixtlán de Juárez, Oaxaca","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":16,"dbh_min_cm":6,"dbh_max_cm":31,"h_min_m":9.6,"h_max_m":25.5,"method":"Nonlinear exponential model (Eq. 4) fitted by SAS PROC MODEL; no correction factor stated"},"evidence":[{"field":"expression","quote":"y = e^[−β0+β1 ln(DN²×AT)] (4); β0 = 9,1315, β1 = 1,1801","locator":"Table 6"},{"field":"fit.n_trees","quote":"Se muestrearon 16 árboles por cada especie","locator":"Resumen / Table 2"}],"check":[{"inputs":{"D":13.5,"H":14.4},"expected":1.1723,"origin":"computed","note":"computed from the published form (Tables 4-7 coefficients, minus sign on β0)"},{"inputs":{"D":23.5,"H":20.7},"expected":6.65596,"origin":"computed","note":"computed from the published form (Tables 4-7 coefficients, minus sign on β0)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"The paper prints the model as e^[−β0 + β1 ln(DN² × AT)] with the tabulated β0 positive; applied with the minus sign (it also matches the paper's biomass expansion factor Eq. 12). Dry mass at 100 °C; stem includes bark. Adjusted R2 (not stored): 0.9845."},{"id":"ruiz-aquino-2014-laurina-stem","source":"ruiz-aquino-2014","name":"Quercus laurina, stem biomass (Eq. 4, D²H)","output":{"quantity":"stem_biomass"},"expression":"exp(-4.2772 + 1.0493 * ln(D^2 * H))","published":{"expression":"exp(-4.2772 + 1.0493 * ln(DN^2 * AT))","units":{"DN":"cm","AT":"m"},"variables":{"DN":"D","AT":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus laurina Humb. & Bonpl.","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["MX"],"place":"Ixtlán de Juárez, Oaxaca","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":16,"dbh_min_cm":6,"dbh_max_cm":31,"h_min_m":9.6,"h_max_m":25.5,"method":"Nonlinear exponential model (Eq. 4) fitted by SAS PROC MODEL; no correction factor stated"},"evidence":[{"field":"expression","quote":"y = e^[−β0+β1 ln(DN²×AT)] (4); β0 = 4,2772, β1 = 1,0493","locator":"Table 6"},{"field":"fit.n_trees","quote":"Se muestrearon 16 árboles por cada especie","locator":"Resumen / Table 2"}],"check":[{"inputs":{"D":13.5,"H":14.4},"expected":53.7061,"origin":"computed","note":"computed from the published form (Tables 4-7 coefficients, minus sign on β0)"},{"inputs":{"D":23.5,"H":20.7},"expected":251.54,"origin":"computed","note":"computed from the published form (Tables 4-7 coefficients, minus sign on β0)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"The paper prints the model as e^[−β0 + β1 ln(DN² × AT)] with the tabulated β0 positive; applied with the minus sign (it also matches the paper's biomass expansion factor Eq. 12). Dry mass at 100 °C; stem includes bark. Adjusted R2 (not stored): 0.99."},{"id":"ruiz-peinado-2012-alnus-glutinosa-root","source":"ruiz-peinado-2012","name":"Alnus glutinosa root biomass (Table 2)","output":{"quantity":"bgb"},"expression":"0.214 * D^2","published":{"expression":"0.214 * d^2","units":{"d":"cm"},"variables":{"d":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Alnus glutinosa","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"national","countries":["ES"],"place":"Spain (sample zones per species, Figure 1)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":5,"method":"regression fitted independently of the aboveground system"},"evidence":[{"field":"expression","quote":"Wr = 0.214 · d²","locator":"Table 2, Alnus glutinosa, Roots row"},{"field":"fit.n_trees","quote":"Alnus glutinosa ... 5","locator":"Table 1, Alnus glutinosa row, root biomass n column"}],"check":[{"inputs":{"D":15},"expected":48.15,"origin":"computed","note":"computed from the Table 2 coefficients"},{"inputs":{"D":35},"expected":262.15,"origin":"computed","note":"computed from the Table 2 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Belowground biomass; fewer trees than aboveground (one tree per diameter class). Table 1 diameter range covers all sample trees, not only the root subset, so no DBH range is set. Stand type is not stated per species in the paper. Branch equations for this species are not added."},{"id":"ruiz-peinado-2012-alnus-glutinosa-stem","source":"ruiz-peinado-2012","name":"Alnus glutinosa stem with bark biomass (Table 2)","output":{"quantity":"stem_biomass"},"expression":"0.0191 * D^2 * H","published":{"expression":"0.0191 * d^2 * h","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Alnus glutinosa","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"national","countries":["ES"],"place":"Spain (sample zones per species, Figure 1)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":16,"dbh_min_cm":8.3,"dbh_max_cm":47.3,"h_min_m":2.8,"h_max_m":16.7,"method":"seemingly unrelated regression with weighting"},"evidence":[{"field":"expression","quote":"Ws = 0.0191 · d² · h","locator":"Table 2, Alnus glutinosa, Stem row"},{"field":"fit.n_trees","quote":"Alnus glutinosa ... 16","locator":"Table 1, Alnus glutinosa row, aboveground biomass n column"},{"field":"fit.dbh_min_cm","quote":"Alnus glutinosa 8.3 47.3","locator":"Table 1, diameter min/max (all sample trees of the species)"}],"check":[{"inputs":{"D":20,"H":10},"expected":76.4,"origin":"computed","note":"computed from the Table 2 coefficients"},{"inputs":{"D":35,"H":15},"expected":350.9625,"origin":"computed","note":"computed from the Table 2 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Stem with bark (commercial volume, up to a top diameter of 7 cm); fitted jointly with the branch equations by SUR to keep components additive. Stand type is not stated per species in the paper. Branch equations for this species are not added."},{"id":"ruiz-peinado-2012-castanea-sativa-root","source":"ruiz-peinado-2012","name":"Castanea sativa root biomass (Table 2)","output":{"quantity":"bgb"},"expression":"0.0211 * D^2.804","published":{"expression":"0.0211 * d^2.804","units":{"d":"cm"},"variables":{"d":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Castanea sativa","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"national","countries":["ES"],"place":"Spain (sample zones per species, Figure 1)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":11,"method":"regression fitted independently of the aboveground system"},"evidence":[{"field":"expression","quote":"Wr = 0.0211 · d^2.804","locator":"Table 2, Castanea sativa, Roots row"},{"field":"fit.n_trees","quote":"Castanea sativa ... 11","locator":"Table 1, Castanea sativa row, root biomass n column"}],"check":[{"inputs":{"D":15},"expected":41.8834,"origin":"computed","note":"computed from the Table 2 coefficients"},{"inputs":{"D":35},"expected":450.6602,"origin":"computed","note":"computed from the Table 2 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Belowground biomass; fewer trees than aboveground (one tree per diameter class). Table 1 diameter range covers all sample trees, not only the root subset, so no DBH range is set. Stand type is not stated per species in the paper. Branch equations for this species are not added."},{"id":"ruiz-peinado-2012-castanea-sativa-stem","source":"ruiz-peinado-2012","name":"Castanea sativa stem with bark biomass (Table 2)","output":{"quantity":"stem_biomass"},"expression":"0.0142 * D^2 * H","published":{"expression":"0.0142 * d^2 * h","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Castanea sativa","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"national","countries":["ES"],"place":"Spain (sample zones per species, Figure 1)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":24,"dbh_min_cm":10.7,"dbh_max_cm":50.6,"h_min_m":5.8,"h_max_m":14.7,"method":"seemingly unrelated regression with weighting"},"evidence":[{"field":"expression","quote":"Ws = 0.0142 · d² · h","locator":"Table 2, Castanea sativa, Stem row"},{"field":"fit.n_trees","quote":"Castanea sativa ... 24","locator":"Table 1, Castanea sativa row, aboveground biomass n column"},{"field":"fit.dbh_min_cm","quote":"Castanea sativa 10.7 50.6","locator":"Table 1, diameter min/max (all sample trees of the species)"}],"check":[{"inputs":{"D":20,"H":10},"expected":56.8,"origin":"computed","note":"computed from the Table 2 coefficients"},{"inputs":{"D":35,"H":15},"expected":260.925,"origin":"computed","note":"computed from the Table 2 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Stem with bark (commercial volume, up to a top diameter of 7 cm); fitted jointly with the branch equations by SUR to keep components additive. Stand type is not stated per species in the paper. Branch equations for this species are not added."},{"id":"ruiz-peinado-2012-ceratonia-siliqua-root","source":"ruiz-peinado-2012","name":"Ceratonia siliqua root biomass (Table 2)","output":{"quantity":"bgb"},"expression":"0.335 * D^2","published":{"expression":"0.335 * d^2","units":{"d":"cm"},"variables":{"d":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Ceratonia siliqua","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"national","countries":["ES"],"place":"Spain (sample zones per species, Figure 1)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":7,"method":"regression fitted independently of the aboveground system"},"evidence":[{"field":"expression","quote":"Wr = 0.335 · d²","locator":"Table 2, Ceratonia siliqua, Roots row"},{"field":"fit.n_trees","quote":"Ceratonia siliqua ... 7","locator":"Table 1, Ceratonia siliqua row, root biomass n column"}],"check":[{"inputs":{"D":15},"expected":75.375,"origin":"computed","note":"computed from the Table 2 coefficients"},{"inputs":{"D":35},"expected":410.375,"origin":"computed","note":"computed from the Table 2 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Belowground biomass; fewer trees than aboveground (one tree per diameter class). Table 1 diameter range covers all sample trees, not only the root subset, so no DBH range is set. Stand type is not stated per species in the paper. Branch equations for this species are not added."},{"id":"ruiz-peinado-2012-ceratonia-siliqua-stem","source":"ruiz-peinado-2012","name":"Ceratonia siliqua stem with bark biomass (Table 2)","output":{"quantity":"stem_biomass"},"expression":"0.142 * D^1.974","published":{"expression":"0.142 * d^1.974","units":{"d":"cm"},"variables":{"d":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Ceratonia siliqua","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"national","countries":["ES"],"place":"Spain (sample zones per species, Figure 1)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":19,"dbh_min_cm":10.2,"dbh_max_cm":42.9,"h_min_m":5.3,"h_max_m":12.9,"method":"seemingly unrelated regression with weighting"},"evidence":[{"field":"expression","quote":"Ws = 0.142 · d^1.974","locator":"Table 2, Ceratonia siliqua, Stem row"},{"field":"fit.n_trees","quote":"Ceratonia siliqua ... 19","locator":"Table 1, Ceratonia siliqua row, aboveground biomass n column"},{"field":"fit.dbh_min_cm","quote":"Ceratonia siliqua 10.2 42.9","locator":"Table 1, diameter min/max (all sample trees of the species)"}],"check":[{"inputs":{"D":15},"expected":29.7778,"origin":"computed","note":"computed from the Table 2 coefficients"},{"inputs":{"D":35},"expected":158.591,"origin":"computed","note":"computed from the Table 2 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Stem with bark (commercial volume, up to a top diameter of 7 cm); fitted jointly with the branch equations by SUR to keep components additive. Stand type is not stated per species in the paper. Branch equations for this species are not added."},{"id":"ruiz-peinado-2012-fagus-sylvatica-root","source":"ruiz-peinado-2012","name":"Fagus sylvatica root biomass (Table 2)","output":{"quantity":"bgb"},"expression":"0.106 * D^2","published":{"expression":"0.106 * d^2","units":{"d":"cm"},"variables":{"d":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Fagus sylvatica","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"national","countries":["ES"],"place":"Spain (sample zones per species, Figure 1)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":14,"method":"regression fitted independently of the aboveground system"},"evidence":[{"field":"expression","quote":"Wr = 0.106 · d²","locator":"Table 2, Fagus sylvatica, Roots row"},{"field":"fit.n_trees","quote":"Fagus sylvatica ... 14","locator":"Table 1, Fagus sylvatica row, root biomass n column"}],"check":[{"inputs":{"D":15},"expected":23.85,"origin":"computed","note":"computed from the Table 2 coefficients"},{"inputs":{"D":35},"expected":129.85,"origin":"computed","note":"computed from the Table 2 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Belowground biomass; fewer trees than aboveground (one tree per diameter class). Table 1 diameter range covers all sample trees, not only the root subset, so no DBH range is set. Stand type is not stated per species in the paper. Branch equations for this species are not added."},{"id":"ruiz-peinado-2012-fagus-sylvatica-stem","source":"ruiz-peinado-2012","name":"Fagus sylvatica stem with bark biomass (Table 2)","output":{"quantity":"stem_biomass"},"expression":"0.0676 * D^2 + 0.0182 * D^2 * H","published":{"expression":"0.0676 * d^2 + 0.0182 * d^2 * h","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Fagus sylvatica","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"national","countries":["ES"],"place":"Spain (sample zones per species, Figure 1)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":72,"dbh_min_cm":9.5,"dbh_max_cm":74.8,"h_min_m":9,"h_max_m":30.9,"method":"seemingly unrelated regression with weighting"},"evidence":[{"field":"expression","quote":"Ws = 0.0676 · d² + 0.0182 · d² · h","locator":"Table 2, Fagus sylvatica, Stem row"},{"field":"fit.n_trees","quote":"Fagus sylvatica ... 72","locator":"Table 1, Fagus sylvatica row, aboveground biomass n column"},{"field":"fit.dbh_min_cm","quote":"Fagus sylvatica 9.5 74.8","locator":"Table 1, diameter min/max (all sample trees of the species)"}],"check":[{"inputs":{"D":20,"H":10},"expected":99.84,"origin":"computed","note":"computed from the Table 2 coefficients"},{"inputs":{"D":35,"H":15},"expected":417.235,"origin":"computed","note":"computed from the Table 2 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Stem with bark (commercial volume, up to a top diameter of 7 cm); fitted jointly with the branch equations by SUR to keep components additive. Stand type is not stated per species in the paper. Branch equations for this species are not added."},{"id":"ruiz-peinado-2012-fraxinus-angustifolia-root","source":"ruiz-peinado-2012","name":"Fraxinus angustifolia root biomass (Table 2)","output":{"quantity":"bgb"},"expression":"0.359 * D^2","published":{"expression":"0.359 * d^2","units":{"d":"cm"},"variables":{"d":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Fraxinus angustifolia","family":"Oleaceae","group":"broadleaf"},"region":{"scope":"national","countries":["ES"],"place":"Spain (sample zones per species, Figure 1)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":8,"method":"regression fitted independently of the aboveground system"},"evidence":[{"field":"expression","quote":"Wr = 0.359 · d²","locator":"Table 2, Fraxinus angustifolia, Roots row"},{"field":"fit.n_trees","quote":"Fraxinus angustifolia ... 8","locator":"Table 1, Fraxinus angustifolia row, root biomass n column"}],"check":[{"inputs":{"D":15},"expected":80.775,"origin":"computed","note":"computed from the Table 2 coefficients"},{"inputs":{"D":35},"expected":439.775,"origin":"computed","note":"computed from the Table 2 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Belowground biomass; fewer trees than aboveground (one tree per diameter class). Table 1 diameter range covers all sample trees, not only the root subset, so no DBH range is set. Stand type is not stated per species in the paper. Branch equations for this species are not added."},{"id":"ruiz-peinado-2012-fraxinus-angustifolia-stem","source":"ruiz-peinado-2012","name":"Fraxinus angustifolia stem with bark biomass (Table 2)","output":{"quantity":"stem_biomass"},"expression":"0.0296 * D^2 * H","published":{"expression":"0.0296 * d^2 * h","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Fraxinus angustifolia","family":"Oleaceae","group":"broadleaf"},"region":{"scope":"national","countries":["ES"],"place":"Spain (sample zones per species, Figure 1)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":26,"dbh_min_cm":7.2,"dbh_max_cm":52.2,"h_min_m":2.8,"h_max_m":10,"method":"seemingly unrelated regression with weighting"},"evidence":[{"field":"expression","quote":"Ws = 0.0296 · d² · h","locator":"Table 2, Fraxinus angustifolia, Stem row"},{"field":"fit.n_trees","quote":"Fraxinus angustifolia ... 26","locator":"Table 1, Fraxinus angustifolia row, aboveground biomass n column"},{"field":"fit.dbh_min_cm","quote":"Fraxinus angustifolia 7.2 52.2","locator":"Table 1, diameter min/max (all sample trees of the species)"}],"check":[{"inputs":{"D":20,"H":10},"expected":118.4,"origin":"computed","note":"computed from the Table 2 coefficients"},{"inputs":{"D":35,"H":15},"expected":543.9,"origin":"computed","note":"computed from the Table 2 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Stem with bark (commercial volume, up to a top diameter of 7 cm); fitted jointly with the branch equations by SUR to keep components additive. Stand type is not stated per species in the paper. Branch equations for this species are not added."},{"id":"ruiz-peinado-2012-olea-europaea-root","source":"ruiz-peinado-2012","name":"Olea europaea var. sylvestris root biomass (Table 2)","output":{"quantity":"bgb"},"expression":"0.147 * D^2","published":{"expression":"0.147 * d^2","units":{"d":"cm"},"variables":{"d":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Olea europaea var. sylvestris","family":"Oleaceae","group":"broadleaf"},"region":{"scope":"national","countries":["ES"],"place":"Spain (sample zones per species, Figure 1)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":5,"method":"regression fitted independently of the aboveground system"},"evidence":[{"field":"expression","quote":"Wr = 0.147 · d²","locator":"Table 2, Olea europaea var. sylvestris, Roots row"},{"field":"fit.n_trees","quote":"Olea europaea var. sylvestris ... 5","locator":"Table 1, Olea europaea var. sylvestris row, root biomass n column"}],"check":[{"inputs":{"D":15},"expected":33.075,"origin":"computed","note":"computed from the Table 2 coefficients"},{"inputs":{"D":35},"expected":180.075,"origin":"computed","note":"computed from the Table 2 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Belowground biomass; fewer trees than aboveground (one tree per diameter class). Table 1 diameter range covers all sample trees, not only the root subset, so no DBH range is set. Stand type is not stated per species in the paper. Branch equations for this species are not added."},{"id":"ruiz-peinado-2012-olea-europaea-stem","source":"ruiz-peinado-2012","name":"Olea europaea var. sylvestris stem with bark biomass (Table 2)","output":{"quantity":"stem_biomass"},"expression":"0.0114 * D^2 * H","published":{"expression":"0.0114 * d^2 * h","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Olea europaea var. sylvestris","family":"Oleaceae","group":"broadleaf"},"region":{"scope":"national","countries":["ES"],"place":"Spain (sample zones per species, Figure 1)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":17,"dbh_min_cm":10,"dbh_max_cm":40.5,"h_min_m":4.9,"h_max_m":11,"method":"seemingly unrelated regression with weighting"},"evidence":[{"field":"expression","quote":"Ws = 0.0114 · d² · h","locator":"Table 2, Olea europaea var. sylvestris, Stem row"},{"field":"fit.n_trees","quote":"Olea europaea var. sylvestris ... 17","locator":"Table 1, Olea europaea var. sylvestris row, aboveground biomass n column"},{"field":"fit.dbh_min_cm","quote":"Olea europaea var. sylvestris 10.0 40.5","locator":"Table 1, diameter min/max (all sample trees of the species)"}],"check":[{"inputs":{"D":20,"H":10},"expected":45.6,"origin":"computed","note":"computed from the Table 2 coefficients"},{"inputs":{"D":35,"H":15},"expected":209.475,"origin":"computed","note":"computed from the Table 2 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Stem with bark (commercial volume, up to a top diameter of 7 cm); fitted jointly with the branch equations by SUR to keep components additive. Stand type is not stated per species in the paper. Branch equations for this species are not added."},{"id":"ruiz-peinado-2012-populus-euramericana-root","source":"ruiz-peinado-2012","name":"Populus x euramericana root biomass (Table 2)","output":{"quantity":"bgb"},"expression":"0.122 * D^2","published":{"expression":"0.122 * d^2","units":{"d":"cm"},"variables":{"d":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Populus x euramericana","family":"Salicaceae","group":"broadleaf"},"region":{"scope":"national","countries":["ES"],"place":"Spain (sample zones per species, Figure 1)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":8,"method":"regression fitted independently of the aboveground system"},"evidence":[{"field":"expression","quote":"Wr = 0.122 · d²","locator":"Table 2, Populus x euramericana, Roots row"},{"field":"fit.n_trees","quote":"Populus x euramericana ... 8","locator":"Table 1, Populus x euramericana row, root biomass n column"}],"check":[{"inputs":{"D":15},"expected":27.45,"origin":"computed","note":"computed from the Table 2 coefficients"},{"inputs":{"D":35},"expected":149.45,"origin":"computed","note":"computed from the Table 2 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Belowground biomass; fewer trees than aboveground (one tree per diameter class). Table 1 diameter range covers all sample trees, not only the root subset, so no DBH range is set. Stand type is not stated per species in the paper. Branch equations for this species are not added."},{"id":"ruiz-peinado-2012-populus-euramericana-stem","source":"ruiz-peinado-2012","name":"Populus x euramericana stem with bark biomass (Table 2)","output":{"quantity":"stem_biomass"},"expression":"0.0130 * D^2 * H","published":{"expression":"0.0130 * d^2 * h","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Populus x euramericana","family":"Salicaceae","group":"broadleaf"},"region":{"scope":"national","countries":["ES"],"place":"Spain (sample zones per species, Figure 1)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":32,"dbh_min_cm":11.4,"dbh_max_cm":50.7,"h_min_m":9.6,"h_max_m":31.1,"method":"seemingly unrelated regression with weighting"},"evidence":[{"field":"expression","quote":"Ws = 0.0130 · d² · h","locator":"Table 2, Populus x euramericana, Stem row"},{"field":"fit.n_trees","quote":"Populus x euramericana ... 32","locator":"Table 1, Populus x euramericana row, aboveground biomass n column"},{"field":"fit.dbh_min_cm","quote":"Populus x euramericana 11.4 50.7","locator":"Table 1, diameter min/max (all sample trees of the species)"}],"check":[{"inputs":{"D":20,"H":10},"expected":52,"origin":"computed","note":"computed from the Table 2 coefficients"},{"inputs":{"D":35,"H":15},"expected":238.875,"origin":"computed","note":"computed from the Table 2 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Stem with bark (commercial volume, up to a top diameter of 7 cm); fitted jointly with the branch equations by SUR to keep components additive. Stand type is not stated per species in the paper. Branch equations for this species are not added."},{"id":"ruiz-peinado-2012-quercus-canariensis-root","source":"ruiz-peinado-2012","name":"Quercus canariensis root biomass (Table 2)","output":{"quantity":"bgb"},"expression":"0.135 * D^2","published":{"expression":"0.135 * d^2","units":{"d":"cm"},"variables":{"d":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus canariensis","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"national","countries":["ES"],"place":"Spain (sample zones per species, Figure 1)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":6,"method":"regression fitted independently of the aboveground system"},"evidence":[{"field":"expression","quote":"Wr = 0.135 · d²","locator":"Table 2, Quercus canariensis, Roots row"},{"field":"fit.n_trees","quote":"Quercus canariensis ... 6","locator":"Table 1, Quercus canariensis row, root biomass n column"}],"check":[{"inputs":{"D":15},"expected":30.375,"origin":"computed","note":"computed from the Table 2 coefficients"},{"inputs":{"D":35},"expected":165.375,"origin":"computed","note":"computed from the Table 2 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Belowground biomass; fewer trees than aboveground (one tree per diameter class). Table 1 diameter range covers all sample trees, not only the root subset, so no DBH range is set. Stand type is not stated per species in the paper. Branch equations for this species are not added."},{"id":"ruiz-peinado-2012-quercus-canariensis-stem","source":"ruiz-peinado-2012","name":"Quercus canariensis stem with bark biomass (Table 2)","output":{"quantity":"stem_biomass"},"expression":"0.0126 * D^2 * H","published":{"expression":"0.0126 * d^2 * h","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus canariensis","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"national","countries":["ES"],"place":"Spain (sample zones per species, Figure 1)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":23,"dbh_min_cm":10,"dbh_max_cm":60,"h_min_m":7.5,"h_max_m":19.5,"method":"seemingly unrelated regression with weighting"},"evidence":[{"field":"expression","quote":"Ws = 0.0126 · d² · h","locator":"Table 2, Quercus canariensis, Stem row"},{"field":"fit.n_trees","quote":"Quercus canariensis ... 23","locator":"Table 1, Quercus canariensis row, aboveground biomass n column"},{"field":"fit.dbh_min_cm","quote":"Quercus canariensis 10.0 60.0","locator":"Table 1, diameter min/max (all sample trees of the species)"}],"check":[{"inputs":{"D":20,"H":10},"expected":50.4,"origin":"computed","note":"computed from the Table 2 coefficients"},{"inputs":{"D":35,"H":15},"expected":231.525,"origin":"computed","note":"computed from the Table 2 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Stem with bark (commercial volume, up to a top diameter of 7 cm); fitted jointly with the branch equations by SUR to keep components additive. Stand type is not stated per species in the paper. Branch equations for this species are not added."},{"id":"ruiz-peinado-2012-quercus-faginea-root","source":"ruiz-peinado-2012","name":"Quercus faginea root biomass (Table 2)","output":{"quantity":"bgb"},"expression":"0.169 * D^2","published":{"expression":"0.169 * d^2","units":{"d":"cm"},"variables":{"d":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus faginea","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"national","countries":["ES"],"place":"Spain (sample zones per species, Figure 1)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":8,"method":"regression fitted independently of the aboveground system"},"evidence":[{"field":"expression","quote":"Wr = 0.169 · d²","locator":"Table 2, Quercus faginea, Roots row"},{"field":"fit.n_trees","quote":"Quercus faginea ... 8","locator":"Table 1, Quercus faginea row, root biomass n column"}],"check":[{"inputs":{"D":15},"expected":38.025,"origin":"computed","note":"computed from the Table 2 coefficients"},{"inputs":{"D":35},"expected":207.025,"origin":"computed","note":"computed from the Table 2 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Belowground biomass; fewer trees than aboveground (one tree per diameter class). Table 1 diameter range covers all sample trees, not only the root subset, so no DBH range is set. Stand type is not stated per species in the paper. Branch equations for this species are not added."},{"id":"ruiz-peinado-2012-quercus-faginea-stem","source":"ruiz-peinado-2012","name":"Quercus faginea stem with bark biomass (Table 2)","output":{"quantity":"stem_biomass"},"expression":"0.154 * D^2","published":{"expression":"0.154 * d^2","units":{"d":"cm"},"variables":{"d":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus faginea","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"national","countries":["ES"],"place":"Spain (sample zones per species, Figure 1)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":24,"dbh_min_cm":9.5,"dbh_max_cm":46.5,"h_min_m":4.9,"h_max_m":14.7,"method":"seemingly unrelated regression with weighting"},"evidence":[{"field":"expression","quote":"Ws = 0.154 · d²","locator":"Table 2, Quercus faginea, Stem row"},{"field":"fit.n_trees","quote":"Quercus faginea ... 24","locator":"Table 1, Quercus faginea row, aboveground biomass n column"},{"field":"fit.dbh_min_cm","quote":"Quercus faginea 9.5 46.5","locator":"Table 1, diameter min/max (all sample trees of the species)"}],"check":[{"inputs":{"D":15},"expected":34.65,"origin":"computed","note":"computed from the Table 2 coefficients"},{"inputs":{"D":35},"expected":188.65,"origin":"computed","note":"computed from the Table 2 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Stem with bark (commercial volume, up to a top diameter of 7 cm); fitted jointly with the branch equations by SUR to keep components additive. Stand type is not stated per species in the paper. Branch equations for this species are not added."},{"id":"ruiz-peinado-2012-quercus-ilex-root","source":"ruiz-peinado-2012","name":"Quercus ilex root biomass (Table 2)","output":{"quantity":"bgb"},"expression":"0.254 * D^2","published":{"expression":"0.254 * d^2","units":{"d":"cm"},"variables":{"d":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus ilex","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"national","countries":["ES"],"place":"Spain (sample zones per species, Figure 1)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":11,"method":"regression fitted independently of the aboveground system"},"evidence":[{"field":"expression","quote":"Wr = 0.254 · d²","locator":"Table 2, Quercus ilex, Roots row"},{"field":"fit.n_trees","quote":"Quercus ilex ... 11","locator":"Table 1, Quercus ilex row, root biomass n column"}],"check":[{"inputs":{"D":15},"expected":57.15,"origin":"computed","note":"computed from the Table 2 coefficients"},{"inputs":{"D":35},"expected":311.15,"origin":"computed","note":"computed from the Table 2 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Belowground biomass; fewer trees than aboveground (one tree per diameter class). Table 1 diameter range covers all sample trees, not only the root subset, so no DBH range is set. Stand type is not stated per species in the paper. Branch equations for this species are not added."},{"id":"ruiz-peinado-2012-quercus-ilex-stem","source":"ruiz-peinado-2012","name":"Quercus ilex stem with bark biomass (Table 2)","output":{"quantity":"stem_biomass"},"expression":"0.143 * D^2","published":{"expression":"0.143 * d^2","units":{"d":"cm"},"variables":{"d":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus ilex","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"national","countries":["ES"],"place":"Spain (sample zones per species, Figure 1)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":43,"dbh_min_cm":7.8,"dbh_max_cm":85.9,"h_min_m":3.9,"h_max_m":12.5,"method":"seemingly unrelated regression with weighting"},"evidence":[{"field":"expression","quote":"Ws = 0.143 · d²","locator":"Table 2, Quercus ilex, Stem row"},{"field":"fit.n_trees","quote":"Quercus ilex ... 43","locator":"Table 1, Quercus ilex row, aboveground biomass n column"},{"field":"fit.dbh_min_cm","quote":"Quercus ilex 7.8 85.9","locator":"Table 1, diameter min/max (all sample trees of the species)"}],"check":[{"inputs":{"D":15},"expected":32.175,"origin":"computed","note":"computed from the Table 2 coefficients"},{"inputs":{"D":35},"expected":175.175,"origin":"computed","note":"computed from the Table 2 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Stem with bark (commercial volume, up to a top diameter of 7 cm); fitted jointly with the branch equations by SUR to keep components additive. Stand type is not stated per species in the paper. Branch equations for this species are not added."},{"id":"ruiz-peinado-2012-quercus-pyrenaica-root","source":"ruiz-peinado-2012","name":"Quercus pyrenaica root biomass (Table 2)","output":{"quantity":"bgb"},"expression":"0.143 * D^2","published":{"expression":"0.143 * d^2","units":{"d":"cm"},"variables":{"d":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus pyrenaica","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"national","countries":["ES"],"place":"Spain (sample zones per species, Figure 1)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":13,"method":"regression fitted independently of the aboveground system"},"evidence":[{"field":"expression","quote":"Wr = 0.143 · d²","locator":"Table 2, Quercus pyrenaica, Roots row"},{"field":"fit.n_trees","quote":"Quercus pyrenaica ... 13","locator":"Table 1, Quercus pyrenaica row, root biomass n column"}],"check":[{"inputs":{"D":15},"expected":32.175,"origin":"computed","note":"computed from the Table 2 coefficients"},{"inputs":{"D":35},"expected":175.175,"origin":"computed","note":"computed from the Table 2 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Belowground biomass; fewer trees than aboveground (one tree per diameter class). Table 1 diameter range covers all sample trees, not only the root subset, so no DBH range is set. Stand type is not stated per species in the paper. Branch equations for this species are not added."},{"id":"ruiz-peinado-2012-quercus-suber-root","source":"ruiz-peinado-2012","name":"Quercus suber root biomass (Table 2)","output":{"quantity":"bgb"},"expression":"0.0829 * D^2","published":{"expression":"0.0829 * d^2","units":{"d":"cm"},"variables":{"d":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus suber","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"national","countries":["ES"],"place":"Spain (sample zones per species, Figure 1)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":11,"method":"regression fitted independently of the aboveground system"},"evidence":[{"field":"expression","quote":"Wr = 0.0829 · d²","locator":"Table 2, Quercus suber, Roots row"},{"field":"fit.n_trees","quote":"Quercus suber ... 11","locator":"Table 1, Quercus suber row, root biomass n column"}],"check":[{"inputs":{"D":15},"expected":18.6525,"origin":"computed","note":"computed from the Table 2 coefficients"},{"inputs":{"D":35},"expected":101.5525,"origin":"computed","note":"computed from the Table 2 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Belowground biomass; fewer trees than aboveground (one tree per diameter class). Table 1 diameter range covers all sample trees, not only the root subset, so no DBH range is set. Stand type is not stated per species in the paper. Branch equations for this species are not added."},{"id":"ruiz-peinado-2012-quercus-suber-stem","source":"ruiz-peinado-2012","name":"Quercus suber stem with bark biomass (Table 2)","output":{"quantity":"stem_biomass"},"expression":"0.00525 * D^2 * H + 0.278 * D * H","published":{"expression":"0.00525 * d^2 * h + 0.278 * d * h","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus suber","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"national","countries":["ES"],"place":"Spain (sample zones per species, Figure 1)","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":33,"dbh_min_cm":10.5,"dbh_max_cm":83,"h_min_m":3.5,"h_max_m":14,"method":"seemingly unrelated regression with weighting"},"evidence":[{"field":"expression","quote":"Ws = 0.00525 · d² · h + 0.278 · d · h","locator":"Table 2, Quercus suber, Stem row"},{"field":"fit.n_trees","quote":"Quercus suber ... 33","locator":"Table 1, Quercus suber row, aboveground biomass n column"},{"field":"fit.dbh_min_cm","quote":"Quercus suber 10.5 83.0","locator":"Table 1, diameter min/max (all sample trees of the species)"}],"check":[{"inputs":{"D":20,"H":10},"expected":76.6,"origin":"computed","note":"computed from the Table 2 coefficients"},{"inputs":{"D":35,"H":15},"expected":242.4188,"origin":"computed","note":"computed from the Table 2 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Stem with bark (commercial volume, up to a top diameter of 7 cm); fitted jointly with the branch equations by SUR to keep components additive. Stand type is not stated per species in the paper. Branch equations for this species are not added."},{"id":"ryan-2011-root","source":"ryan-2011","name":"Miombo coarse root biomass, DBH only","output":{"quantity":"bgb"},"expression":"exp(2.262 * ln(D) - 3.370) / 0.47","published":{"expression":"exp(2.262 * ln(DBH) - 3.370) / 0.47","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Miombo woodland trees","group":"broadleaf"},"region":{"scope":"site","countries":["MZ"],"place":"Nhambita, Sofala province, Mozambique","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":23,"r2":0.94,"rse":0.43,"method":"OLS on ln-transformed data, no correction factor"},"evidence":[{"field":"expression","quote":"log(Bdest,r) = 2.262 log(DBH,dest)-3.370","locator":"Table 1"},{"field":"notes","quote":"the mean (47%±0.20) was used for all conversions to C mass","locator":"Methods"}],"check":[{"inputs":{"D":20},"expected":64.16,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Paper gives kg carbon; divided by the paper's 0.47 carbon fraction to give kg dry mass. No correction factor, as in the paper."},{"id":"ryan-2011-stem","source":"ryan-2011","name":"Miombo stem biomass (trunk and branches), DBH only","output":{"quantity":"agb","excludes":["foliage"]},"expression":"exp(2.601 * ln(D) - 3.629) / 0.47","published":{"expression":"exp(2.601 * ln(DBH) - 3.629) / 0.47","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Miombo woodland trees","group":"broadleaf"},"region":{"scope":"site","countries":["MZ"],"place":"Nhambita, Sofala province, Mozambique","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":29,"dbh_min_cm":5,"dbh_max_cm":73,"r2":0.93,"rse":0.52,"method":"OLS on ln-transformed data, no correction factor"},"evidence":[{"field":"expression","quote":"log(Bdest,s) = 2.601 log(DBH,dest)-3.629","locator":"Table 1"},{"field":"fit.dbh","quote":"The 29 sampled trees ranged in DBH from 5-73 cm.","locator":"Results, Tree stem and root biomass"},{"field":"notes","quote":"the mean (47%±0.20) was used for all conversions to C mass","locator":"Methods"}],"check":[{"inputs":{"D":20},"expected":136.72,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":50},"expected":1482.07,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-01","notes":"The paper's equation gives kg carbon (log is natural log). Converted here to kg dry mass by dividing by the paper's mean carbon fraction 0.47; that division is in both expressions. Stem biomass covers trunk and branches; leaves are not included, so it slightly underestimates total AGB. Back-transformed without a correction factor, as the authors did."},{"id":"salas-2002-roble-v-d2h","source":"salas-2002","name":"Nothofagus obliqua (roble) total volume, ln v from ln(d²h) (Cuadro 5, Grupo 3)","output":{"quantity":"total_volume"},"expression":"exp(-9.918535 + 0.95733 * ln(D^2 * H))","published":{"expression":"exp(-9.918535 + 0.95733 * ln(d^2 * h))","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"m3"},"taxon":{"level":"species","name":"Nothofagus obliqua","family":"Nothofagaceae","group":"broadleaf"},"region":{"scope":"site","countries":["CL"],"place":"Predio Rucamanque, Temuco, Araucanía (38°39'S 72°35'W)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":107,"dbh_min_cm":11.5,"dbh_max_cm":121,"h_min_m":9.8,"h_max_m":53.5,"method":"ordinary least squares, ln(v) = b0 + b1 ln(d²h)"},"evidence":[{"field":"expression","quote":"Roble: Ln v = b0 + b1 Ln d²h; b0 = −9,918535; b1 = 0,95733","locator":"Cuadro 5 (Ecuaciones de volumen total de las especies de Rucamanque), Roble row; model form is modelo 9 of Cuadro 1, Ln(v) = b0 + b1 Ln d²h (Kawas 1978)"},{"field":"fit.n_trees","quote":"Grupo 3 Roble (n = 107)","locator":"Cuadro 3"},{"field":"fit.dbh_min_cm","quote":"d [cm] mínimo 11,5; máximo 121,0; h [m] mínimo 9,8; máximo 53,5","locator":"Cuadro 3, Grupo 3"}],"check":[{"inputs":{"D":20,"H":15},"expected":0.20388,"origin":"computed","note":"computed from the published form (coefficients as printed, natural log, no correction factor)"},{"inputs":{"D":45,"H":27},"expected":1.69068,"origin":"computed","note":"computed from the published form (coefficients as printed, natural log, no correction factor)"},{"inputs":{"D":90,"H":40},"expected":9.28635,"origin":"computed","note":"computed from the published form (coefficients as printed, natural log, no correction factor)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table values are images on SciELO. Ln is the natural log (paper defines Ln as base neperiana). No back-transformation correction factor is printed, so none is applied. v is total over-bark volume obtained by non-destructive relascope cubing. Other groups (laurel-lingue-tepa, ulmo, tineo) need the diameter at 6 m (d6), which is not a canonical variable, and are not included. The reported R2a (0,985, Cuadro 5) is adjusted, so not entered as r2. Cuadro 2 is the covariance-analysis species matrix; the descriptive statistics by group are in Cuadro 3 and the recommended equations in Cuadro 5."},{"id":"sampaio-2005-all-9-dbh-h","source":"sampaio-2005","name":"Nine caatinga species, DBH x height","output":{"quantity":"agb"},"expression":"0.0612 * (D * H)^1.5811","published":{"expression":"0.0612 * (DBH * H)^1.5811","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Nine caatinga species, all but Cereus jamacaru","group":"mixed"},"region":{"scope":"site","countries":["BR"],"place":"Santaluz (Bahia) and Petrolina (Pernambuco), Depressão Sertaneja, Brazilian semiarid","biomes":["tropical","dryland"]},"stand":"natural","fit":{"r2":0.9478,"method":"power equation B = a*(x*H)^b (oven-dry aboveground biomass, kg)"},"evidence":[{"field":"expression","quote":"All but C. jamacaru: 0.0612*(DBH*H)1.5811 R2 0.9478","locator":"Table 2, p. 938"},{"field":"fit.r2","quote":"R2 0.9478","locator":"Table 2, p. 938"}],"check":[{"inputs":{"D":5,"H":4},"expected":6.97927,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":15,"H":7},"expected":96.0404,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2 prints each equation as a*DGL^b or a*DBH^b with the exponent as superscript (flattened here with ^). Biomass is oven-dry aboveground plant biomass in kg (Table 2 title), diameters in cm. Wood dried at 60 C. Plants were cut at the base and the stump was included in the weighed biomass. Perimeters were converted to diameters assuming a circular shape; for branching below measuring height, branch areas were summed into one equivalent diameter. DGL is stem diameter at ground level, mapped to DRC. Group equation; n not stated for the group and left out. H is total plant height (m), including the stump."},{"id":"sampaio-2005-all-9-dbh","source":"sampaio-2005","name":"Nine caatinga species, all but Cereus jamacaru, DBH","output":{"quantity":"agb"},"expression":"0.173 * D^2.295","published":{"expression":"0.173 * DBH^2.295","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Nine caatinga species, all but Cereus jamacaru","group":"mixed"},"region":{"scope":"site","countries":["BR"],"place":"Santaluz (Bahia) and Petrolina (Pernambuco), Depressão Sertaneja, Brazilian semiarid","biomes":["tropical","dryland"]},"stand":"natural","fit":{"dbh_min_cm":2,"dbh_max_cm":50,"r2":0.9184,"method":"power equation B = a*x^b (oven-dry aboveground biomass, kg)"},"evidence":[{"field":"expression","quote":"All but C. jamacaru: 0.1730*DBH2.2950 R2 0.9184","locator":"Table 2, p. 938"},{"field":"fit.r2","quote":"R2 0.9184","locator":"Table 2, p. 938"},{"field":"fit.dbh_max_cm","quote":"Caatinga 0.1730 2.295 34 1371 2-50 This work","locator":"Table 3, p. 941"}],"check":[{"inputs":{"D":5},"expected":6.95316,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":15},"expected":86.5318,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2 prints each equation as a*DGL^b or a*DBH^b with the exponent as superscript (flattened here with ^). Biomass is oven-dry aboveground plant biomass in kg (Table 2 title), diameters in cm. Wood dried at 60 C. Plants were cut at the base and the stump was included in the weighed biomass. Perimeters were converted to diameters assuming a circular shape; for branching below measuring height, branch areas were summed into one equivalent diameter. DGL is stem diameter at ground level, mapped to DRC. Group equation; n not stated for the group and left out. The DBH range 2-50 cm is as printed in Table 3 (This work); the abstract says this equation is valid up to 30 cm."},{"id":"sampaio-2005-all-9-dgl-h","source":"sampaio-2005","name":"Nine caatinga species, DGL x height","output":{"quantity":"agb"},"expression":"0.0292 * (DRC * H)^1.6371","published":{"expression":"0.0292 * (DGL * H)^1.6371","units":{"DGL":"cm","H":"m"},"variables":{"DGL":"DRC"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Nine caatinga species, all but Cereus jamacaru","group":"mixed"},"region":{"scope":"site","countries":["BR"],"place":"Santaluz (Bahia) and Petrolina (Pernambuco), Depressão Sertaneja, Brazilian semiarid","biomes":["tropical","dryland"]},"stand":"natural","fit":{"r2":0.9382,"method":"power equation B = a*(x*H)^b (oven-dry aboveground biomass, kg)"},"evidence":[{"field":"expression","quote":"All but C. jamacaru: 0.0292*(DGL*H)1.6371 R2 0.9382","locator":"Table 2, p. 938"},{"field":"fit.r2","quote":"R2 0.9382","locator":"Table 2, p. 938"}],"check":[{"inputs":{"DRC":5,"H":4},"expected":3.93821,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"DRC":15,"H":7},"expected":59.4664,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2 prints each equation as a*DGL^b or a*DBH^b with the exponent as superscript (flattened here with ^). Biomass is oven-dry aboveground plant biomass in kg (Table 2 title), diameters in cm. Wood dried at 60 C. Plants were cut at the base and the stump was included in the weighed biomass. Perimeters were converted to diameters assuming a circular shape; for branching below measuring height, branch areas were summed into one equivalent diameter. DGL is stem diameter at ground level, mapped to DRC. Group equation; n not stated for the group and left out. H is total plant height (m), including the stump."},{"id":"sampaio-2005-all-9-dgl","source":"sampaio-2005","name":"Nine caatinga species, all but Cereus jamacaru, ground-level diameter","output":{"quantity":"agb"},"expression":"0.0644 * DRC^2.3948","published":{"expression":"0.0644 * DGL^2.3948","units":{"DGL":"cm"},"variables":{"DGL":"DRC"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Nine caatinga species, all but Cereus jamacaru","group":"mixed"},"region":{"scope":"site","countries":["BR"],"place":"Santaluz (Bahia) and Petrolina (Pernambuco), Depressão Sertaneja, Brazilian semiarid","biomes":["tropical","dryland"]},"stand":"natural","fit":{"r2":0.9207,"method":"power equation B = a*x^b (oven-dry aboveground biomass, kg)"},"evidence":[{"field":"expression","quote":"All but C. jamacaru: 0.0644*DGL2.3948 R2 0.9207","locator":"Table 2, p. 938"},{"field":"fit.r2","quote":"R2 0.9207","locator":"Table 2, p. 938"}],"check":[{"inputs":{"DRC":5},"expected":3.03934,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"DRC":15},"expected":42.2075,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2 prints each equation as a*DGL^b or a*DBH^b with the exponent as superscript (flattened here with ^). Biomass is oven-dry aboveground plant biomass in kg (Table 2 title), diameters in cm. Wood dried at 60 C. Plants were cut at the base and the stump was included in the weighed biomass. Perimeters were converted to diameters assuming a circular shape; for branching below measuring height, branch areas were summed into one equivalent diameter. DGL is stem diameter at ground level, mapped to DRC. Group equation; n not stated for the group and left out."},{"id":"sampaio-2005-anadenanthera-macrocarpa-dbh","source":"sampaio-2005","name":"Anadenanthera macrocarpa, caatinga, DBH","output":{"quantity":"agb"},"expression":"0.2482 * D^2.1628","published":{"expression":"0.2482 * DBH^2.1628","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Anadenanthera macrocarpa","group":"broadleaf"},"region":{"scope":"site","countries":["BR"],"place":"Santaluz (Bahia) and Petrolina (Pernambuco), Depressão Sertaneja, Brazilian semiarid","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":30,"r2":0.9372,"method":"power equation B = a*x^b (oven-dry aboveground biomass, kg)"},"evidence":[{"field":"expression","quote":"A. macrocarpa: 0.2482*DBH2.1628 R2 0.9372","locator":"Table 2, p. 938"},{"field":"fit.r2","quote":"R2 0.9372","locator":"Table 2, p. 938"},{"field":"fit.n_trees","quote":"Each species was represented by 30 individuals","locator":"Material and methods, p. 936"}],"check":[{"inputs":{"D":5},"expected":8.0637,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":15},"expected":86.7865,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2 prints each equation as a*DGL^b or a*DBH^b with the exponent as superscript (flattened here with ^). Biomass is oven-dry aboveground plant biomass in kg (Table 2 title), diameters in cm. Wood dried at 60 C. Plants were cut at the base and the stump was included in the weighed biomass. Perimeters were converted to diameters assuming a circular shape; for branching below measuring height, branch areas were summed into one equivalent diameter. DGL is stem diameter at ground level, mapped to DRC. "},{"id":"sampaio-2005-anadenanthera-macrocarpa-dgl","source":"sampaio-2005","name":"Anadenanthera macrocarpa, caatinga, ground-level diameter","output":{"quantity":"agb"},"expression":"0.1395 * DRC^2.1579","published":{"expression":"0.1395 * DGL^2.1579","units":{"DGL":"cm"},"variables":{"DGL":"DRC"},"output_unit":"kg"},"taxon":{"level":"species","name":"Anadenanthera macrocarpa","group":"broadleaf"},"region":{"scope":"site","countries":["BR"],"place":"Santaluz (Bahia) and Petrolina (Pernambuco), Depressão Sertaneja, Brazilian semiarid","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":30,"r2":0.9232,"method":"power equation B = a*x^b (oven-dry aboveground biomass, kg)"},"evidence":[{"field":"expression","quote":"A. macrocarpa: 0.1395*DGL2.1579 R2 0.9232","locator":"Table 2, p. 938"},{"field":"fit.r2","quote":"R2 0.9232","locator":"Table 2, p. 938"},{"field":"fit.n_trees","quote":"Each species was represented by 30 individuals","locator":"Material and methods, p. 936"}],"check":[{"inputs":{"DRC":5},"expected":4.49657,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"DRC":15},"expected":48.1351,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2 prints each equation as a*DGL^b or a*DBH^b with the exponent as superscript (flattened here with ^). Biomass is oven-dry aboveground plant biomass in kg (Table 2 title), diameters in cm. Wood dried at 60 C. Plants were cut at the base and the stump was included in the weighed biomass. Perimeters were converted to diameters assuming a circular shape; for branching below measuring height, branch areas were summed into one equivalent diameter. DGL is stem diameter at ground level, mapped to DRC. "},{"id":"sampaio-2005-aspidosperma-pyrifolium-dbh","source":"sampaio-2005","name":"Aspidosperma pyrifolium, caatinga, DBH","output":{"quantity":"agb"},"expression":"0.3675 * D^1.8355","published":{"expression":"0.3675 * DBH^1.8355","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Aspidosperma pyrifolium","group":"broadleaf"},"region":{"scope":"site","countries":["BR"],"place":"Santaluz (Bahia) and Petrolina (Pernambuco), Depressão Sertaneja, Brazilian semiarid","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":30,"r2":0.8527,"method":"power equation B = a*x^b (oven-dry aboveground biomass, kg)"},"evidence":[{"field":"expression","quote":"A. pyrifolium: 0.3675*DBH1.8355 R2 0.8527","locator":"Table 2, p. 938"},{"field":"fit.r2","quote":"R2 0.8527","locator":"Table 2, p. 938"},{"field":"fit.n_trees","quote":"Each species was represented by 30 individuals","locator":"Material and methods, p. 936"}],"check":[{"inputs":{"D":5},"expected":7.05045,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":15},"expected":52.963,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2 prints each equation as a*DGL^b or a*DBH^b with the exponent as superscript (flattened here with ^). Biomass is oven-dry aboveground plant biomass in kg (Table 2 title), diameters in cm. Wood dried at 60 C. Plants were cut at the base and the stump was included in the weighed biomass. Perimeters were converted to diameters assuming a circular shape; for branching below measuring height, branch areas were summed into one equivalent diameter. DGL is stem diameter at ground level, mapped to DRC. "},{"id":"sampaio-2005-aspidosperma-pyrifolium-dgl","source":"sampaio-2005","name":"Aspidosperma pyrifolium, caatinga, ground-level diameter","output":{"quantity":"agb"},"expression":"0.2455 * DRC^1.7726","published":{"expression":"0.2455 * DGL^1.7726","units":{"DGL":"cm"},"variables":{"DGL":"DRC"},"output_unit":"kg"},"taxon":{"level":"species","name":"Aspidosperma pyrifolium","group":"broadleaf"},"region":{"scope":"site","countries":["BR"],"place":"Santaluz (Bahia) and Petrolina (Pernambuco), Depressão Sertaneja, Brazilian semiarid","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":30,"r2":0.9265,"method":"power equation B = a*x^b (oven-dry aboveground biomass, kg)"},"evidence":[{"field":"expression","quote":"A. pyrifolium: 0.2455*DGL1.7726 R2 0.9265","locator":"Table 2, p. 938"},{"field":"fit.r2","quote":"R2 0.9265","locator":"Table 2, p. 938"},{"field":"fit.n_trees","quote":"Each species was represented by 30 individuals","locator":"Material and methods, p. 936"}],"check":[{"inputs":{"DRC":5},"expected":4.25643,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"DRC":15},"expected":29.8395,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2 prints each equation as a*DGL^b or a*DBH^b with the exponent as superscript (flattened here with ^). Biomass is oven-dry aboveground plant biomass in kg (Table 2 title), diameters in cm. Wood dried at 60 C. Plants were cut at the base and the stump was included in the weighed biomass. Perimeters were converted to diameters assuming a circular shape; for branching below measuring height, branch areas were summed into one equivalent diameter. DGL is stem diameter at ground level, mapped to DRC. "},{"id":"sampaio-2005-caesalpinia-pyramidalis-dbh","source":"sampaio-2005","name":"Caesalpinia pyramidalis, caatinga, DBH","output":{"quantity":"agb"},"expression":"0.2365 * D^2.1928","published":{"expression":"0.2365 * DBH^2.1928","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Caesalpinia pyramidalis","group":"broadleaf"},"region":{"scope":"site","countries":["BR"],"place":"Santaluz (Bahia) and Petrolina (Pernambuco), Depressão Sertaneja, Brazilian semiarid","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":30,"r2":0.8198,"method":"power equation B = a*x^b (oven-dry aboveground biomass, kg)"},"evidence":[{"field":"expression","quote":"C. pyramidalis: 0.2365*DBH2.1928 R2 0.8198","locator":"Table 2, p. 938"},{"field":"fit.r2","quote":"R2 0.8198","locator":"Table 2, p. 938"},{"field":"fit.n_trees","quote":"Each species was represented by 30 individuals","locator":"Material and methods, p. 936"}],"check":[{"inputs":{"D":5},"expected":8.06367,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":15},"expected":89.6941,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2 prints each equation as a*DGL^b or a*DBH^b with the exponent as superscript (flattened here with ^). Biomass is oven-dry aboveground plant biomass in kg (Table 2 title), diameters in cm. Wood dried at 60 C. Plants were cut at the base and the stump was included in the weighed biomass. Perimeters were converted to diameters assuming a circular shape; for branching below measuring height, branch areas were summed into one equivalent diameter. DGL is stem diameter at ground level, mapped to DRC. "},{"id":"sampaio-2005-caesalpinia-pyramidalis-dgl","source":"sampaio-2005","name":"Caesalpinia pyramidalis, caatinga, ground-level diameter","output":{"quantity":"agb"},"expression":"0.2804 * DRC^1.9274","published":{"expression":"0.2804 * DGL^1.9274","units":{"DGL":"cm"},"variables":{"DGL":"DRC"},"output_unit":"kg"},"taxon":{"level":"species","name":"Caesalpinia pyramidalis","group":"broadleaf"},"region":{"scope":"site","countries":["BR"],"place":"Santaluz (Bahia) and Petrolina (Pernambuco), Depressão Sertaneja, Brazilian semiarid","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":30,"r2":0.9015,"method":"power equation B = a*x^b (oven-dry aboveground biomass, kg)"},"evidence":[{"field":"expression","quote":"C. pyramidalis: 0.2804*DGL1.9274 R2 0.9015","locator":"Table 2, p. 938"},{"field":"fit.r2","quote":"R2 0.9015","locator":"Table 2, p. 938"},{"field":"fit.n_trees","quote":"Each species was represented by 30 individuals","locator":"Material and methods, p. 936"}],"check":[{"inputs":{"DRC":5},"expected":6.23696,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"DRC":15},"expected":51.8294,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2 prints each equation as a*DGL^b or a*DBH^b with the exponent as superscript (flattened here with ^). Biomass is oven-dry aboveground plant biomass in kg (Table 2 title), diameters in cm. Wood dried at 60 C. Plants were cut at the base and the stump was included in the weighed biomass. Perimeters were converted to diameters assuming a circular shape; for branching below measuring height, branch areas were summed into one equivalent diameter. DGL is stem diameter at ground level, mapped to DRC. "},{"id":"sampaio-2005-croton-sonderianus-dbh","source":"sampaio-2005","name":"Croton sonderianus, caatinga, DBH","output":{"quantity":"agb"},"expression":"0.3569 * D^1.8565","published":{"expression":"0.3569 * DBH^1.8565","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Croton sonderianus","group":"broadleaf"},"region":{"scope":"site","countries":["BR"],"place":"Santaluz (Bahia) and Petrolina (Pernambuco), Depressão Sertaneja, Brazilian semiarid","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":30,"r2":0.8414,"method":"power equation B = a*x^b (oven-dry aboveground biomass, kg)"},"evidence":[{"field":"expression","quote":"C. sonderianus: 0.3569*DBH1.8565 R2 0.8414","locator":"Table 2, p. 938"},{"field":"fit.r2","quote":"R2 0.8414","locator":"Table 2, p. 938"},{"field":"fit.n_trees","quote":"Each species was represented by 30 individuals","locator":"Material and methods, p. 936"}],"check":[{"inputs":{"D":5},"expected":7.08246,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":15},"expected":54.4452,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2 prints each equation as a*DGL^b or a*DBH^b with the exponent as superscript (flattened here with ^). Biomass is oven-dry aboveground plant biomass in kg (Table 2 title), diameters in cm. Wood dried at 60 C. Plants were cut at the base and the stump was included in the weighed biomass. Perimeters were converted to diameters assuming a circular shape; for branching below measuring height, branch areas were summed into one equivalent diameter. DGL is stem diameter at ground level, mapped to DRC. "},{"id":"sampaio-2005-croton-sonderianus-dgl","source":"sampaio-2005","name":"Croton sonderianus, caatinga, ground-level diameter","output":{"quantity":"agb"},"expression":"0.1482 * DRC^1.8741","published":{"expression":"0.1482 * DGL^1.8741","units":{"DGL":"cm"},"variables":{"DGL":"DRC"},"output_unit":"kg"},"taxon":{"level":"species","name":"Croton sonderianus","group":"broadleaf"},"region":{"scope":"site","countries":["BR"],"place":"Santaluz (Bahia) and Petrolina (Pernambuco), Depressão Sertaneja, Brazilian semiarid","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":30,"r2":0.8266,"method":"power equation B = a*x^b (oven-dry aboveground biomass, kg)"},"evidence":[{"field":"expression","quote":"C. sonderianus: 0.1482*DGL1.8741 R2 0.8266","locator":"Table 2, p. 938"},{"field":"fit.r2","quote":"R2 0.8266","locator":"Table 2, p. 938"},{"field":"fit.n_trees","quote":"Each species was represented by 30 individuals","locator":"Material and methods, p. 936"}],"check":[{"inputs":{"DRC":5},"expected":3.02544,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"DRC":15},"expected":23.7116,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2 prints each equation as a*DGL^b or a*DBH^b with the exponent as superscript (flattened here with ^). Biomass is oven-dry aboveground plant biomass in kg (Table 2 title), diameters in cm. Wood dried at 60 C. Plants were cut at the base and the stump was included in the weighed biomass. Perimeters were converted to diameters assuming a circular shape; for branching below measuring height, branch areas were summed into one equivalent diameter. DGL is stem diameter at ground level, mapped to DRC. "},{"id":"sampaio-2005-jatropha-mollissima-dbh","source":"sampaio-2005","name":"Jatropha mollissima, caatinga, DBH","output":{"quantity":"agb"},"expression":"0.197 * D^1.8145","published":{"expression":"0.197 * DBH^1.8145","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Jatropha mollissima","group":"broadleaf"},"region":{"scope":"site","countries":["BR"],"place":"Santaluz (Bahia) and Petrolina (Pernambuco), Depressão Sertaneja, Brazilian semiarid","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":30,"r2":0.8288,"method":"power equation B = a*x^b (oven-dry aboveground biomass, kg)"},"evidence":[{"field":"expression","quote":"J. mollissima: 0.1970*DBH1.8145 R2 0.8288","locator":"Table 2, p. 938"},{"field":"fit.r2","quote":"R2 0.8288","locator":"Table 2, p. 938"},{"field":"fit.n_trees","quote":"Each species was represented by 30 individuals","locator":"Material and methods, p. 936"}],"check":[{"inputs":{"D":5},"expected":3.65382,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":15},"expected":26.8215,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2 prints each equation as a*DGL^b or a*DBH^b with the exponent as superscript (flattened here with ^). Biomass is oven-dry aboveground plant biomass in kg (Table 2 title), diameters in cm. Wood dried at 60 C. Plants were cut at the base and the stump was included in the weighed biomass. Perimeters were converted to diameters assuming a circular shape; for branching below measuring height, branch areas were summed into one equivalent diameter. DGL is stem diameter at ground level, mapped to DRC. "},{"id":"sampaio-2005-jatropha-mollissima-dgl","source":"sampaio-2005","name":"Jatropha mollissima, caatinga, ground-level diameter","output":{"quantity":"agb"},"expression":"0.0689 * DRC^2.0557","published":{"expression":"0.0689 * DGL^2.0557","units":{"DGL":"cm"},"variables":{"DGL":"DRC"},"output_unit":"kg"},"taxon":{"level":"species","name":"Jatropha mollissima","group":"broadleaf"},"region":{"scope":"site","countries":["BR"],"place":"Santaluz (Bahia) and Petrolina (Pernambuco), Depressão Sertaneja, Brazilian semiarid","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":30,"r2":0.7668,"method":"power equation B = a*x^b (oven-dry aboveground biomass, kg)"},"evidence":[{"field":"expression","quote":"J. mollissima: 0.0689*DGL2.0557 R2 0.7668","locator":"Table 2, p. 938"},{"field":"fit.r2","quote":"R2 0.7668","locator":"Table 2, p. 938"},{"field":"fit.n_trees","quote":"Each species was represented by 30 individuals","locator":"Material and methods, p. 936"}],"check":[{"inputs":{"DRC":5},"expected":1.88405,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"DRC":15},"expected":18.0264,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2 prints each equation as a*DGL^b or a*DBH^b with the exponent as superscript (flattened here with ^). Biomass is oven-dry aboveground plant biomass in kg (Table 2 title), diameters in cm. Wood dried at 60 C. Plants were cut at the base and the stump was included in the weighed biomass. Perimeters were converted to diameters assuming a circular shape; for branching below measuring height, branch areas were summed into one equivalent diameter. DGL is stem diameter at ground level, mapped to DRC. "},{"id":"sampaio-2005-large-6-dbh","source":"sampaio-2005","name":"Large caatinga species (the six listed after the three small ones), DBH","output":{"quantity":"agb"},"expression":"0.2368 * D^2.2219","published":{"expression":"0.2368 * DBH^2.2219","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Large caatinga species (the six listed after the three small ones)","group":"mixed"},"region":{"scope":"site","countries":["BR"],"place":"Santaluz (Bahia) and Petrolina (Pernambuco), Depressão Sertaneja, Brazilian semiarid","biomes":["tropical","dryland"]},"stand":"natural","fit":{"r2":0.9455,"method":"power equation B = a*x^b (oven-dry aboveground biomass, kg)"},"evidence":[{"field":"expression","quote":"Large species (next 6): 0.2368*DBH2.2219 R2 0.9455","locator":"Table 2, p. 938"},{"field":"fit.r2","quote":"R2 0.9455","locator":"Table 2, p. 938"}],"check":[{"inputs":{"D":5},"expected":8.46103,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":15},"expected":97.1715,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2 prints each equation as a*DGL^b or a*DBH^b with the exponent as superscript (flattened here with ^). Biomass is oven-dry aboveground plant biomass in kg (Table 2 title), diameters in cm. Wood dried at 60 C. Plants were cut at the base and the stump was included in the weighed biomass. Perimeters were converted to diameters assuming a circular shape; for branching below measuring height, branch areas were summed into one equivalent diameter. DGL is stem diameter at ground level, mapped to DRC. Group equation; n not stated for the group and left out."},{"id":"sampaio-2005-large-6-dgl","source":"sampaio-2005","name":"Large caatinga species (the six listed after the three small ones), ground-level diameter","output":{"quantity":"agb"},"expression":"0.0871 * DRC^2.3366","published":{"expression":"0.0871 * DGL^2.3366","units":{"DGL":"cm"},"variables":{"DGL":"DRC"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Large caatinga species (the six listed after the three small ones)","group":"mixed"},"region":{"scope":"site","countries":["BR"],"place":"Santaluz (Bahia) and Petrolina (Pernambuco), Depressão Sertaneja, Brazilian semiarid","biomes":["tropical","dryland"]},"stand":"natural","fit":{"r2":0.9505,"method":"power equation B = a*x^b (oven-dry aboveground biomass, kg)"},"evidence":[{"field":"expression","quote":"Large species (next 6): 0.0871*DGL2.3366 R2 0.9505","locator":"Table 2, p. 938"},{"field":"fit.r2","quote":"R2 0.9505","locator":"Table 2, p. 938"}],"check":[{"inputs":{"DRC":5},"expected":3.7431,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"DRC":15},"expected":48.761,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2 prints each equation as a*DGL^b or a*DBH^b with the exponent as superscript (flattened here with ^). Biomass is oven-dry aboveground plant biomass in kg (Table 2 title), diameters in cm. Wood dried at 60 C. Plants were cut at the base and the stump was included in the weighed biomass. Perimeters were converted to diameters assuming a circular shape; for branching below measuring height, branch areas were summed into one equivalent diameter. DGL is stem diameter at ground level, mapped to DRC. Group equation; n not stated for the group and left out."},{"id":"sampaio-2005-maytenus-rigida-dbh","source":"sampaio-2005","name":"Maytenus rigida, caatinga, DBH","output":{"quantity":"agb"},"expression":"0.346 * D^2.0231","published":{"expression":"0.346 * DBH^2.0231","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Maytenus rigida","group":"broadleaf"},"region":{"scope":"site","countries":["BR"],"place":"Santaluz (Bahia) and Petrolina (Pernambuco), Depressão Sertaneja, Brazilian semiarid","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":30,"r2":0.9501,"method":"power equation B = a*x^b (oven-dry aboveground biomass, kg)"},"evidence":[{"field":"expression","quote":"M. rigida: 0.3460*DBH2.0231 R2 0.9501","locator":"Table 2, p. 938"},{"field":"fit.r2","quote":"R2 0.9501","locator":"Table 2, p. 938"},{"field":"fit.n_trees","quote":"Each species was represented by 30 individuals","locator":"Material and methods, p. 936"}],"check":[{"inputs":{"D":5},"expected":8.97764,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":15},"expected":82.8755,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2 prints each equation as a*DGL^b or a*DBH^b with the exponent as superscript (flattened here with ^). Biomass is oven-dry aboveground plant biomass in kg (Table 2 title), diameters in cm. Wood dried at 60 C. Plants were cut at the base and the stump was included in the weighed biomass. Perimeters were converted to diameters assuming a circular shape; for branching below measuring height, branch areas were summed into one equivalent diameter. DGL is stem diameter at ground level, mapped to DRC. "},{"id":"sampaio-2005-maytenus-rigida-dgl","source":"sampaio-2005","name":"Maytenus rigida, caatinga, ground-level diameter","output":{"quantity":"agb"},"expression":"0.1142 * DRC^2.2543","published":{"expression":"0.1142 * DGL^2.2543","units":{"DGL":"cm"},"variables":{"DGL":"DRC"},"output_unit":"kg"},"taxon":{"level":"species","name":"Maytenus rigida","group":"broadleaf"},"region":{"scope":"site","countries":["BR"],"place":"Santaluz (Bahia) and Petrolina (Pernambuco), Depressão Sertaneja, Brazilian semiarid","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":30,"r2":0.9605,"method":"power equation B = a*x^b (oven-dry aboveground biomass, kg)"},"evidence":[{"field":"expression","quote":"M. rigida: 0.1142*DGL2.2543 R2 0.9605","locator":"Table 2, p. 938"},{"field":"fit.r2","quote":"R2 0.9605","locator":"Table 2, p. 938"},{"field":"fit.n_trees","quote":"Each species was represented by 30 individuals","locator":"Material and methods, p. 936"}],"check":[{"inputs":{"DRC":5},"expected":4.29887,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"DRC":15},"expected":51.1598,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2 prints each equation as a*DGL^b or a*DBH^b with the exponent as superscript (flattened here with ^). Biomass is oven-dry aboveground plant biomass in kg (Table 2 title), diameters in cm. Wood dried at 60 C. Plants were cut at the base and the stump was included in the weighed biomass. Perimeters were converted to diameters assuming a circular shape; for branching below measuring height, branch areas were summed into one equivalent diameter. DGL is stem diameter at ground level, mapped to DRC. "},{"id":"sampaio-2005-mimosa-hostilis-dbh","source":"sampaio-2005","name":"Mimosa hostilis, caatinga, DBH","output":{"quantity":"agb"},"expression":"0.3127 * D^2.1183","published":{"expression":"0.3127 * DBH^2.1183","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Mimosa hostilis","group":"broadleaf"},"region":{"scope":"site","countries":["BR"],"place":"Santaluz (Bahia) and Petrolina (Pernambuco), Depressão Sertaneja, Brazilian semiarid","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":30,"r2":0.9594,"method":"power equation B = a*x^b (oven-dry aboveground biomass, kg)"},"evidence":[{"field":"expression","quote":"M. hostilis: 0.3127*DBH2.1183 R2 0.9594","locator":"Table 2, p. 938"},{"field":"fit.r2","quote":"R2 0.9594","locator":"Table 2, p. 938"},{"field":"fit.n_trees","quote":"Each species was represented by 30 individuals","locator":"Material and methods, p. 936"}],"check":[{"inputs":{"D":5},"expected":9.45706,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":15},"expected":96.9264,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2 prints each equation as a*DGL^b or a*DBH^b with the exponent as superscript (flattened here with ^). Biomass is oven-dry aboveground plant biomass in kg (Table 2 title), diameters in cm. Wood dried at 60 C. Plants were cut at the base and the stump was included in the weighed biomass. Perimeters were converted to diameters assuming a circular shape; for branching below measuring height, branch areas were summed into one equivalent diameter. DGL is stem diameter at ground level, mapped to DRC. "},{"id":"sampaio-2005-mimosa-hostilis-dgl","source":"sampaio-2005","name":"Mimosa hostilis, caatinga, ground-level diameter","output":{"quantity":"agb"},"expression":"0.1064 * DRC^2.2907","published":{"expression":"0.1064 * DGL^2.2907","units":{"DGL":"cm"},"variables":{"DGL":"DRC"},"output_unit":"kg"},"taxon":{"level":"species","name":"Mimosa hostilis","group":"broadleaf"},"region":{"scope":"site","countries":["BR"],"place":"Santaluz (Bahia) and Petrolina (Pernambuco), Depressão Sertaneja, Brazilian semiarid","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":30,"r2":0.9699,"method":"power equation B = a*x^b (oven-dry aboveground biomass, kg)"},"evidence":[{"field":"expression","quote":"M. hostilis: 0.1064*DGL2.2907 R2 0.9699","locator":"Table 2, p. 938"},{"field":"fit.r2","quote":"R2 0.9699","locator":"Table 2, p. 938"},{"field":"fit.n_trees","quote":"Each species was represented by 30 individuals","locator":"Material and methods, p. 936"}],"check":[{"inputs":{"DRC":5},"expected":4.2469,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"DRC":15},"expected":52.6034,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2 prints each equation as a*DGL^b or a*DBH^b with the exponent as superscript (flattened here with ^). Biomass is oven-dry aboveground plant biomass in kg (Table 2 title), diameters in cm. Wood dried at 60 C. Plants were cut at the base and the stump was included in the weighed biomass. Perimeters were converted to diameters assuming a circular shape; for branching below measuring height, branch areas were summed into one equivalent diameter. DGL is stem diameter at ground level, mapped to DRC. "},{"id":"sampaio-2005-myracrodruon-urundeuva-dbh","source":"sampaio-2005","name":"Myracrodruon urundeuva, caatinga, DBH","output":{"quantity":"agb"},"expression":"0.1397 * D^2.4659","published":{"expression":"0.1397 * DBH^2.4659","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Myracrodruon urundeuva","group":"broadleaf"},"region":{"scope":"site","countries":["BR"],"place":"Santaluz (Bahia) and Petrolina (Pernambuco), Depressão Sertaneja, Brazilian semiarid","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":30,"r2":0.9821,"method":"power equation B = a*x^b (oven-dry aboveground biomass, kg)"},"evidence":[{"field":"expression","quote":"M. urundeuva: 0.1397*DBH2.4659 R2 0.9821","locator":"Table 2, p. 938"},{"field":"fit.r2","quote":"R2 0.9821","locator":"Table 2, p. 938"},{"field":"fit.n_trees","quote":"Each species was represented by 30 individuals","locator":"Material and methods, p. 936"}],"check":[{"inputs":{"D":5},"expected":7.39242,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":15},"expected":110.999,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2 prints each equation as a*DGL^b or a*DBH^b with the exponent as superscript (flattened here with ^). Biomass is oven-dry aboveground plant biomass in kg (Table 2 title), diameters in cm. Wood dried at 60 C. Plants were cut at the base and the stump was included in the weighed biomass. Perimeters were converted to diameters assuming a circular shape; for branching below measuring height, branch areas were summed into one equivalent diameter. DGL is stem diameter at ground level, mapped to DRC. "},{"id":"sampaio-2005-myracrodruon-urundeuva-dgl","source":"sampaio-2005","name":"Myracrodruon urundeuva, caatinga, ground-level diameter","output":{"quantity":"agb"},"expression":"0.0596 * DRC^2.4878","published":{"expression":"0.0596 * DGL^2.4878","units":{"DGL":"cm"},"variables":{"DGL":"DRC"},"output_unit":"kg"},"taxon":{"level":"species","name":"Myracrodruon urundeuva","group":"broadleaf"},"region":{"scope":"site","countries":["BR"],"place":"Santaluz (Bahia) and Petrolina (Pernambuco), Depressão Sertaneja, Brazilian semiarid","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":30,"r2":0.9739,"method":"power equation B = a*x^b (oven-dry aboveground biomass, kg)"},"evidence":[{"field":"expression","quote":"M. urundeuva: 0.0596*DGL2.4878 R2 0.9739","locator":"Table 2, p. 938"},{"field":"fit.r2","quote":"R2 0.9739","locator":"Table 2, p. 938"},{"field":"fit.n_trees","quote":"Each species was represented by 30 individuals","locator":"Material and methods, p. 936"}],"check":[{"inputs":{"DRC":5},"expected":3.26696,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"DRC":15},"expected":50.2488,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2 prints each equation as a*DGL^b or a*DBH^b with the exponent as superscript (flattened here with ^). Biomass is oven-dry aboveground plant biomass in kg (Table 2 title), diameters in cm. Wood dried at 60 C. Plants were cut at the base and the stump was included in the weighed biomass. Perimeters were converted to diameters assuming a circular shape; for branching below measuring height, branch areas were summed into one equivalent diameter. DGL is stem diameter at ground level, mapped to DRC. "},{"id":"sampaio-2005-schinopsis-glabra-dbh","source":"sampaio-2005","name":"Schinopsis glabra, caatinga, DBH","output":{"quantity":"agb"},"expression":"0.2274 * D^2.271","published":{"expression":"0.2274 * DBH^2.271","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Schinopsis glabra","group":"broadleaf"},"region":{"scope":"site","countries":["BR"],"place":"Santaluz (Bahia) and Petrolina (Pernambuco), Depressão Sertaneja, Brazilian semiarid","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":30,"r2":0.9742,"method":"power equation B = a*x^b (oven-dry aboveground biomass, kg)"},"evidence":[{"field":"expression","quote":"S. glabra: 0.2274*DBH2.2710 R2 0.9742","locator":"Table 2, p. 938"},{"field":"fit.r2","quote":"R2 0.9742","locator":"Table 2, p. 938"},{"field":"fit.n_trees","quote":"Each species was represented by 30 individuals","locator":"Material and methods, p. 936"}],"check":[{"inputs":{"D":5},"expected":8.79329,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":15},"expected":106.584,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2 prints each equation as a*DGL^b or a*DBH^b with the exponent as superscript (flattened here with ^). Biomass is oven-dry aboveground plant biomass in kg (Table 2 title), diameters in cm. Wood dried at 60 C. Plants were cut at the base and the stump was included in the weighed biomass. Perimeters were converted to diameters assuming a circular shape; for branching below measuring height, branch areas were summed into one equivalent diameter. DGL is stem diameter at ground level, mapped to DRC. "},{"id":"sampaio-2005-schinopsis-glabra-dgl","source":"sampaio-2005","name":"Schinopsis glabra, caatinga, ground-level diameter","output":{"quantity":"agb"},"expression":"0.1452 * DRC^2.2137","published":{"expression":"0.1452 * DGL^2.2137","units":{"DGL":"cm"},"variables":{"DGL":"DRC"},"output_unit":"kg"},"taxon":{"level":"species","name":"Schinopsis glabra","group":"broadleaf"},"region":{"scope":"site","countries":["BR"],"place":"Santaluz (Bahia) and Petrolina (Pernambuco), Depressão Sertaneja, Brazilian semiarid","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":30,"r2":0.9674,"method":"power equation B = a*x^b (oven-dry aboveground biomass, kg)"},"evidence":[{"field":"expression","quote":"S. glabra: 0.1452*DGL2.2137 R2 0.9674","locator":"Table 2, p. 938"},{"field":"fit.r2","quote":"R2 0.9674","locator":"Table 2, p. 938"},{"field":"fit.n_trees","quote":"Each species was represented by 30 individuals","locator":"Material and methods, p. 936"}],"check":[{"inputs":{"DRC":5},"expected":5.12008,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"DRC":15},"expected":58.2747,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2 prints each equation as a*DGL^b or a*DBH^b with the exponent as superscript (flattened here with ^). Biomass is oven-dry aboveground plant biomass in kg (Table 2 title), diameters in cm. Wood dried at 60 C. Plants were cut at the base and the stump was included in the weighed biomass. Perimeters were converted to diameters assuming a circular shape; for branching below measuring height, branch areas were summed into one equivalent diameter. DGL is stem diameter at ground level, mapped to DRC. "},{"id":"sampaio-2005-small-3-dbh","source":"sampaio-2005","name":"Small caatinga species (A. pyrifolium, C. sonderianus, J. mollissima), DBH","output":{"quantity":"agb"},"expression":"0.2627 * D^1.901","published":{"expression":"0.2627 * DBH^1.901","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Small caatinga species (A. pyrifolium, C. sonderianus, J. mollissima)","group":"mixed"},"region":{"scope":"site","countries":["BR"],"place":"Santaluz (Bahia) and Petrolina (Pernambuco), Depressão Sertaneja, Brazilian semiarid","biomes":["tropical","dryland"]},"stand":"natural","fit":{"r2":0.8189,"method":"power equation B = a*x^b (oven-dry aboveground biomass, kg)"},"evidence":[{"field":"expression","quote":"Small species (top 3): 0.2627*DBH1.9010 R2 0.8189","locator":"Table 2, p. 938"},{"field":"fit.r2","quote":"R2 0.8189","locator":"Table 2, p. 938"}],"check":[{"inputs":{"D":5},"expected":5.60018,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":15},"expected":45.2074,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2 prints each equation as a*DGL^b or a*DBH^b with the exponent as superscript (flattened here with ^). Biomass is oven-dry aboveground plant biomass in kg (Table 2 title), diameters in cm. Wood dried at 60 C. Plants were cut at the base and the stump was included in the weighed biomass. Perimeters were converted to diameters assuming a circular shape; for branching below measuring height, branch areas were summed into one equivalent diameter. DGL is stem diameter at ground level, mapped to DRC. Group equation; n not stated for the group and left out."},{"id":"sampaio-2005-small-3-dgl","source":"sampaio-2005","name":"Small caatinga species (A. pyrifolium, C. sonderianus, J. mollissima), ground-level diameter","output":{"quantity":"agb"},"expression":"0.0644 * DRC^2.1999","published":{"expression":"0.0644 * DGL^2.1999","units":{"DGL":"cm"},"variables":{"DGL":"DRC"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Small caatinga species (A. pyrifolium, C. sonderianus, J. mollissima)","group":"mixed"},"region":{"scope":"site","countries":["BR"],"place":"Santaluz (Bahia) and Petrolina (Pernambuco), Depressão Sertaneja, Brazilian semiarid","biomes":["tropical","dryland"]},"stand":"natural","fit":{"r2":0.8467,"method":"power equation B = a*x^b (oven-dry aboveground biomass, kg)"},"evidence":[{"field":"expression","quote":"Small species (top 3): 0.0644*DGL2.1999 R2 0.8467","locator":"Table 2, p. 938"},{"field":"fit.r2","quote":"R2 0.8467","locator":"Table 2, p. 938"}],"check":[{"inputs":{"DRC":5},"expected":2.22101,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"DRC":15},"expected":24.8983,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Table 2 prints each equation as a*DGL^b or a*DBH^b with the exponent as superscript (flattened here with ^). Biomass is oven-dry aboveground plant biomass in kg (Table 2 title), diameters in cm. Wood dried at 60 C. Plants were cut at the base and the stump was included in the weighed biomass. Perimeters were converted to diameters assuming a circular shape; for branching below measuring height, branch areas were summed into one equivalent diameter. DGL is stem diameter at ground level, mapped to DRC. Group equation; n not stated for the group and left out."},{"id":"santana-2021-agb-independent","source":"santana-2021","name":"Parque Cerrado, total aboveground biomass, independent fit (Table 2)","output":{"quantity":"agb"},"expression":"0.21220 * D^2.01655 * H^0.18081","published":{"expression":"0.21220 * DAP^2.01655 * Ht^0.18081","units":{"DAP":"cm","Ht":"m"},"variables":{"DAP":"D","Ht":"H"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Parque Cerrado tree species (mixed)","group":"mixed"},"region":{"scope":"site","countries":["BR"],"place":"Northwest Goiás, Parque Cerrado (Cerrado biome)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":97,"method":"nonlinear least squares (Schumacher-Hall form), independent fit"},"evidence":[{"field":"expression","quote":"AGB = 0.21220 * DAP^2.01655 * Ht^0.18081","locator":"Table 2, p. 712"},{"field":"fit.n_trees","quote":"97 indivíduos presentes em dez parcelas de 10 metros x 10 metros","locator":"2.1 Caracterização da área e coleta de dados, p. 709"}],"check":[{"inputs":{"D":5,"H":4},"expected":7.00022,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":6},"expected":30.4785,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":9},"expected":132.701,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Total aboveground biomass includes stem with bark, branches and leaves. Equation printed with DAP and Ht as variables; units are not stated beside the model and are read as DAP in cm and Ht in m (the paper gives the DAP >= 5 cm inclusion criterion and biomass in kg); magnitudes are consistent. Adjusted R2 (not R2) is printed, so fit.r2 is left out. The paper reports no DAP or height range of the fitted trees (only the DAP >= 5 cm inclusion criterion), so none is given. Dry biomass from 97 destructively sampled trees in ten 10 m x 10 m plots."},{"id":"santana-2021-agb-wnsur","source":"santana-2021","name":"Parque Cerrado, total aboveground biomass as stem + crown, simultaneous WNSUR system (Table 4)","output":{"quantity":"agb"},"expression":"0.01987 * D^2.00834 * H^1.00618 + 0.25989 * D^1.9124 * H^(-0.12066)","published":{"expression":"0.01987 * DAP^2.00834 * Ht^1.00618 + 0.25989 * DAP^1.9124 * Ht^(-0.12066)","units":{"DAP":"cm","Ht":"m"},"variables":{"DAP":"D","Ht":"H"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Parque Cerrado tree species (mixed)","group":"mixed"},"region":{"scope":"site","countries":["BR"],"place":"Northwest Goiás, Parque Cerrado (Cerrado biome)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":97,"method":"weighted nonlinear seemingly unrelated regression (WNSUR) system, Schumacher-Hall form"},"evidence":[{"field":"expression","quote":"AGB = BF + BC (BF = 0.01987 * DAP^2.00834 * Ht^1.00618; BC = 0.25989 * DAP^1.91240 * Ht^-0.12066)","locator":"Table 4, p. 712"},{"field":"fit.n_trees","quote":"97 indivíduos presentes em dez parcelas de 10 metros x 10 metros","locator":"2.1 Caracterização da área e coleta de dados, p. 709"}],"check":[{"inputs":{"D":5,"H":4},"expected":6.80488,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":6},"expected":29.4004,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":9},"expected":135.684,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Total is the sum of the system's stem (BF) and crown (BC, branches and leaves) equations, as the paper defines AGB = BF + BC in Table 4. Equation printed with DAP and Ht as variables; units are not stated beside the model and are read as DAP in cm and Ht in m (the paper gives the DAP >= 5 cm inclusion criterion and biomass in kg); magnitudes are consistent. Adjusted R2 (not R2) is printed, so fit.r2 is left out. The paper reports no DAP or height range of the fitted trees (only the DAP >= 5 cm inclusion criterion), so none is given. Dry biomass from 97 destructively sampled trees in ten 10 m x 10 m plots."},{"id":"santana-2021-stem-independent","source":"santana-2021","name":"Parque Cerrado, stem biomass with bark, independent fit (Table 2)","output":{"quantity":"stem_biomass"},"expression":"0.01544 * D^2.01859 * H^1.11354","published":{"expression":"0.01544 * DAP^2.01859 * Ht^1.11354","units":{"DAP":"cm","Ht":"m"},"variables":{"DAP":"D","Ht":"H"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Parque Cerrado tree species (mixed)","group":"mixed"},"region":{"scope":"site","countries":["BR"],"place":"Northwest Goiás, Parque Cerrado (Cerrado biome)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":97,"method":"nonlinear least squares (Schumacher-Hall form), independent fit"},"evidence":[{"field":"expression","quote":"BF = 0.01544 * DAP^2.01859 * Ht^1.11354","locator":"Table 2, p. 712"},{"field":"fit.n_trees","quote":"97 indivíduos presentes em dez parcelas de 10 metros x 10 metros","locator":"2.1 Caracterização da área e coleta de dados, p. 709"}],"check":[{"inputs":{"D":5,"H":4},"expected":1.86208,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":6},"expected":11.8506,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":9},"expected":75.419,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"BF is stem biomass (fuste com casca). Equation printed with DAP and Ht as variables; units are not stated beside the model and are read as DAP in cm and Ht in m (the paper gives the DAP >= 5 cm inclusion criterion and biomass in kg); magnitudes are consistent. Adjusted R2 (not R2) is printed, so fit.r2 is left out. The paper reports no DAP or height range of the fitted trees (only the DAP >= 5 cm inclusion criterion), so none is given. Dry biomass from 97 destructively sampled trees in ten 10 m x 10 m plots."},{"id":"santana-2021-stem-wnsur","source":"santana-2021","name":"Parque Cerrado, stem biomass with bark, simultaneous WNSUR fit (Table 4)","output":{"quantity":"stem_biomass"},"expression":"0.01987 * D^2.00834 * H^1.00618","published":{"expression":"0.01987 * DAP^2.00834 * Ht^1.00618","units":{"DAP":"cm","Ht":"m"},"variables":{"DAP":"D","Ht":"H"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Parque Cerrado tree species (mixed)","group":"mixed"},"region":{"scope":"site","countries":["BR"],"place":"Northwest Goiás, Parque Cerrado (Cerrado biome)","biomes":["tropical","dryland"]},"stand":"natural","fit":{"n_trees":97,"method":"weighted nonlinear seemingly unrelated regression (WNSUR) system, Schumacher-Hall form"},"evidence":[{"field":"expression","quote":"BF = 0.01987 * DAP^2.00834 * Ht^1.00618","locator":"Table 4, p. 712"},{"field":"fit.n_trees","quote":"97 indivíduos presentes em dez parcelas de 10 metros x 10 metros","locator":"2.1 Caracterização da área e coleta de dados, p. 709"}],"check":[{"inputs":{"D":5,"H":4},"expected":2.03118,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":10,"H":6},"expected":12.2885,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":9},"expected":74.3444,"origin":"computed","note":"hand-computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Part of an additive system in which AGB = BF + BC. Equation printed with DAP and Ht as variables; units are not stated beside the model and are read as DAP in cm and Ht in m (the paper gives the DAP >= 5 cm inclusion criterion and biomass in kg); magnitudes are consistent. Adjusted R2 (not R2) is printed, so fit.r2 is left out. The paper reports no DAP or height range of the fitted trees (only the DAP >= 5 cm inclusion criterion), so none is given. Dry biomass from 97 destructively sampled trees in ten 10 m x 10 m plots."},{"id":"santos-2020-astronium-lecointei","source":"santos-2020","name":"Commercial stem volume from DBH, Astronium lecointei (species-specific, Table 2)","output":{"quantity":"stem_volume"},"expression":"exp(-6.92187 + 2.02237 * ln(D))","published":{"expression":"exp(-6.92187 + 2.02237 * ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m3"},"taxon":{"level":"species","name":"Astronium lecointei","family":"Anacardiaceae","group":"broadleaf"},"region":{"scope":"site","countries":["BR"],"place":"Tapajós National Forest, Pará (community forest management concession), eastern Brazilian Amazon","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":1222,"dbh_min_cm":50,"r2":0.63,"method":"Model 2 (Husch) fitted by least squares on ln(vc); r2 is the adjusted R² recalculated in arithmetic units; Syx = 2.164 m3 (26.7%)"},"evidence":[{"field":"expression","quote":"A. lecointei vc = exp(-6.92187 + 2.02237ln(DBH)) 0.63 2.164 26.7","locator":"Table 2, SSEs rows"},{"field":"fit.n_trees","quote":"Astronium lecointei Ducke Muiracatiara 1,222 136","locator":"Table 1 (columns: adjustment, validation)"},{"field":"fit.dbh_min_cm","quote":"29,119 trees (50.0 cm ≤ DBH ≤ 175.0 cm) of 43 commercial species","locator":"Material and Methods, Data collection"},{"field":"output","quote":"composed the commercial volume (vc) of the stem","locator":"Material and Methods, Data collection"}],"check":[{"inputs":{"D":60},"expected":3.89,"origin":"computed","note":"hand-computed from the Table 2 coefficients"},{"inputs":{"D":90},"expected":8.8323,"origin":"computed","note":"hand-computed from the Table 2 coefficients"},{"inputs":{"D":130},"expected":18.58,"origin":"computed","note":"hand-computed from the Table 2 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Species-specific equation (A. lecointei, Muiracatiara). vc is the commercial volume of the stem (sum of Smalian log volumes, hollows discounted), not total tree volume. No back-transformation correction factor is stated, so none is applied. n_trees is the adjustment (fitting) set; DBH range is that of the whole dataset (all species), not stated per species. Ten percent of trees were held out for validation. 8 of the 36+1 species equations in Table 2 were added (the ten most important commercial species by harvested volume plus H. petraeum); the generic FMA equation was rejected by the authors' own paired t-test. "},{"id":"santos-2020-couratari","source":"santos-2020","name":"Commercial stem volume from DBH, Couratari (species-specific, Table 2)","output":{"quantity":"stem_volume"},"expression":"exp(-5.53516 + 1.71104 * ln(D))","published":{"expression":"exp(-5.53516 + 1.71104 * ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m3"},"taxon":{"level":"genus","name":"Couratari","family":"Lecythidaceae","group":"broadleaf"},"region":{"scope":"site","countries":["BR"],"place":"Tapajós National Forest, Pará (community forest management concession), eastern Brazilian Amazon","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":2974,"dbh_min_cm":50,"r2":0.48,"method":"Model 2 (Husch) fitted by least squares on ln(vc); r2 is the adjusted R² recalculated in arithmetic units; Syx = 2.635 m3 (31.0%)"},"evidence":[{"field":"expression","quote":"Couratari sp. vc = exp(-5.53516 + 1.71104ln(DBH)) 0.48 2.635 31.0","locator":"Table 2, SSEs rows"},{"field":"fit.n_trees","quote":"Couratari sp. Tauarí 2,974 330","locator":"Table 1 (columns: adjustment, validation)"},{"field":"fit.dbh_min_cm","quote":"29,119 trees (50.0 cm ≤ DBH ≤ 175.0 cm) of 43 commercial species","locator":"Material and Methods, Data collection"},{"field":"output","quote":"composed the commercial volume (vc) of the stem","locator":"Material and Methods, Data collection"}],"check":[{"inputs":{"D":60},"expected":4.3511,"origin":"computed","note":"hand-computed from the Table 2 coefficients"},{"inputs":{"D":90},"expected":8.7076,"origin":"computed","note":"hand-computed from the Table 2 coefficients"},{"inputs":{"D":130},"expected":16.336,"origin":"computed","note":"hand-computed from the Table 2 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Species-specific equation (Couratari sp., Tauarí). vc is the commercial volume of the stem (sum of Smalian log volumes, hollows discounted), not total tree volume. No back-transformation correction factor is stated, so none is applied. n_trees is the adjustment (fitting) set; DBH range is that of the whole dataset (all species), not stated per species. Ten percent of trees were held out for validation. 8 of the 36+1 species equations in Table 2 were added (the ten most important commercial species by harvested volume plus H. petraeum); the generic FMA equation was rejected by the authors' own paired t-test. Couratari sp. in the paper (species not identified); genus-level taxon."},{"id":"santos-2020-hymenaea-courbaril","source":"santos-2020","name":"Commercial stem volume from DBH, Hymenaea courbaril (species-specific, Table 2)","output":{"quantity":"stem_volume"},"expression":"exp(-6.24458 + 1.90015 * ln(D))","published":{"expression":"exp(-6.24458 + 1.90015 * ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m3"},"taxon":{"level":"species","name":"Hymenaea courbaril","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"site","countries":["BR"],"place":"Tapajós National Forest, Pará (community forest management concession), eastern Brazilian Amazon","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":1487,"dbh_min_cm":50,"r2":0.69,"method":"Model 2 (Husch) fitted by least squares on ln(vc); r2 is the adjusted R² recalculated in arithmetic units; Syx = 2.86 m3 (21.2%)"},"evidence":[{"field":"expression","quote":"H. courbaril vc = exp(-6.24458 + 1.90015ln(DBH)) 0.69 2.860 21.2","locator":"Table 2, SSEs rows"},{"field":"fit.n_trees","quote":"Hymenaea courbaril L. Jatobá 1,487 165","locator":"Table 1 (columns: adjustment, validation)"},{"field":"fit.dbh_min_cm","quote":"29,119 trees (50.0 cm ≤ DBH ≤ 175.0 cm) of 43 commercial species","locator":"Material and Methods, Data collection"},{"field":"output","quote":"composed the commercial volume (vc) of the stem","locator":"Material and Methods, Data collection"}],"check":[{"inputs":{"D":60},"expected":4.6427,"origin":"computed","note":"hand-computed from the Table 2 coefficients"},{"inputs":{"D":90},"expected":10.032,"origin":"computed","note":"hand-computed from the Table 2 coefficients"},{"inputs":{"D":130},"expected":20.175,"origin":"computed","note":"hand-computed from the Table 2 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Species-specific equation (H. courbaril, Jatobá). vc is the commercial volume of the stem (sum of Smalian log volumes, hollows discounted), not total tree volume. No back-transformation correction factor is stated, so none is applied. n_trees is the adjustment (fitting) set; DBH range is that of the whole dataset (all species), not stated per species. Ten percent of trees were held out for validation. 8 of the 36+1 species equations in Table 2 were added (the ten most important commercial species by harvested volume plus H. petraeum); the generic FMA equation was rejected by the authors' own paired t-test. "},{"id":"santos-2020-hymenolobium-petraeum","source":"santos-2020","name":"Commercial stem volume from DBH, Hymenolobium petraeum (species-specific, Table 2)","output":{"quantity":"stem_volume"},"expression":"exp(-7.22502 + 2.09783 * ln(D))","published":{"expression":"exp(-7.22502 + 2.09783 * ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m3"},"taxon":{"level":"species","name":"Hymenolobium petraeum","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"site","countries":["BR"],"place":"Tapajós National Forest, Pará (community forest management concession), eastern Brazilian Amazon","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":247,"dbh_min_cm":50,"r2":0.61,"method":"Model 2 (Husch) fitted by least squares on ln(vc); r2 is the adjusted R² recalculated in arithmetic units; Syx = 5.567 m3 (36.4%)"},"evidence":[{"field":"expression","quote":"H. petraeum vc = exp(-7.22502 + 2.09783ln(DBH)) 0.61 5.567 36.4","locator":"Table 2, SSEs rows"},{"field":"fit.n_trees","quote":"Hymenolobium petraeum Ducke Angelim pedra 247 27","locator":"Table 1 (columns: adjustment, validation)"},{"field":"fit.dbh_min_cm","quote":"29,119 trees (50.0 cm ≤ DBH ≤ 175.0 cm) of 43 commercial species","locator":"Material and Methods, Data collection"},{"field":"output","quote":"composed the commercial volume (vc) of the stem","locator":"Material and Methods, Data collection"}],"check":[{"inputs":{"D":60},"expected":3.9127,"origin":"computed","note":"hand-computed from the Table 2 coefficients"},{"inputs":{"D":90},"expected":9.1597,"origin":"computed","note":"hand-computed from the Table 2 coefficients"},{"inputs":{"D":130},"expected":19.811,"origin":"computed","note":"hand-computed from the Table 2 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Species-specific equation (H. petraeum, Angelim pedra). vc is the commercial volume of the stem (sum of Smalian log volumes, hollows discounted), not total tree volume. No back-transformation correction factor is stated, so none is applied. n_trees is the adjustment (fitting) set; DBH range is that of the whole dataset (all species), not stated per species. Ten percent of trees were held out for validation. 8 of the 36+1 species equations in Table 2 were added (the ten most important commercial species by harvested volume plus H. petraeum); the generic FMA equation was rejected by the authors' own paired t-test. One of the species with very large trees; the paper notes generic equations underestimated its volume by 15.7-16.6% versus 4.4% for this equation."},{"id":"santos-2020-lecythis-lurida","source":"santos-2020","name":"Commercial stem volume from DBH, Lecythis lurida (species-specific, Table 2)","output":{"quantity":"stem_volume"},"expression":"exp(-6.78776 + 1.95013 * ln(D))","published":{"expression":"exp(-6.78776 + 1.95013 * ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m3"},"taxon":{"level":"species","name":"Lecythis lurida","family":"Lecythidaceae","group":"broadleaf"},"region":{"scope":"site","countries":["BR"],"place":"Tapajós National Forest, Pará (community forest management concession), eastern Brazilian Amazon","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":2836,"dbh_min_cm":50,"r2":0.62,"method":"Model 2 (Husch) fitted by least squares on ln(vc); r2 is the adjusted R² recalculated in arithmetic units; Syx = 1.686 m3 (27.5%)"},"evidence":[{"field":"expression","quote":"L. lurida vc = exp(-6.78776 + 1.95013ln(DBH)) 0.62 1.686 27.5","locator":"Table 2, SSEs rows"},{"field":"fit.n_trees","quote":"Lecythis lurida (Miers) S.A.Mori Jarana 2,836 315","locator":"Table 1 (columns: adjustment, validation)"},{"field":"fit.dbh_min_cm","quote":"29,119 trees (50.0 cm ≤ DBH ≤ 175.0 cm) of 43 commercial species","locator":"Material and Methods, Data collection"},{"field":"output","quote":"composed the commercial volume (vc) of the stem","locator":"Material and Methods, Data collection"}],"check":[{"inputs":{"D":60},"expected":3.3093,"origin":"computed","note":"hand-computed from the Table 2 coefficients"},{"inputs":{"D":90},"expected":7.2969,"origin":"computed","note":"hand-computed from the Table 2 coefficients"},{"inputs":{"D":130},"expected":14.948,"origin":"computed","note":"hand-computed from the Table 2 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Species-specific equation (L. lurida, Jarana). vc is the commercial volume of the stem (sum of Smalian log volumes, hollows discounted), not total tree volume. No back-transformation correction factor is stated, so none is applied. n_trees is the adjustment (fitting) set; DBH range is that of the whole dataset (all species), not stated per species. Ten percent of trees were held out for validation. 8 of the 36+1 species equations in Table 2 were added (the ten most important commercial species by harvested volume plus H. petraeum); the generic FMA equation was rejected by the authors' own paired t-test. "},{"id":"santos-2020-manilkara-huberi","source":"santos-2020","name":"Commercial stem volume from DBH, Manilkara huberi (species-specific, Table 2)","output":{"quantity":"stem_volume"},"expression":"exp(-5.95341 + 1.76982 * ln(D))","published":{"expression":"exp(-5.95341 + 1.76982 * ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m3"},"taxon":{"level":"species","name":"Manilkara huberi","family":"Sapotaceae","group":"broadleaf"},"region":{"scope":"site","countries":["BR"],"place":"Tapajós National Forest, Pará (community forest management concession), eastern Brazilian Amazon","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":6582,"dbh_min_cm":50,"r2":0.6,"method":"Model 2 (Husch) fitted by least squares on ln(vc); r2 is the adjusted R² recalculated in arithmetic units; Syx = 1.759 m3 (28.4%)"},"evidence":[{"field":"expression","quote":"M. huberi vc = exp(-5.95341 + 1.76982ln(DBH)) 0.60 1.759 28.4","locator":"Table 2, SSEs rows"},{"field":"fit.n_trees","quote":"Manilkara huberi (Ducke) A. Chev. Maçaranduba 6,582 728","locator":"Table 1 (columns: adjustment, validation)"},{"field":"fit.dbh_min_cm","quote":"29,119 trees (50.0 cm ≤ DBH ≤ 175.0 cm) of 43 commercial species","locator":"Material and Methods, Data collection"},{"field":"output","quote":"composed the commercial volume (vc) of the stem","locator":"Material and Methods, Data collection"}],"check":[{"inputs":{"D":60},"expected":3.6431,"origin":"computed","note":"hand-computed from the Table 2 coefficients"},{"inputs":{"D":90},"expected":7.4666,"origin":"computed","note":"hand-computed from the Table 2 coefficients"},{"inputs":{"D":130},"expected":14.314,"origin":"computed","note":"hand-computed from the Table 2 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Species-specific equation (M. huberi, Maçaranduba). vc is the commercial volume of the stem (sum of Smalian log volumes, hollows discounted), not total tree volume. No back-transformation correction factor is stated, so none is applied. n_trees is the adjustment (fitting) set; DBH range is that of the whole dataset (all species), not stated per species. Ten percent of trees were held out for validation. 8 of the 36+1 species equations in Table 2 were added (the ten most important commercial species by harvested volume plus H. petraeum); the generic FMA equation was rejected by the authors' own paired t-test. The most important commercial species of the study."},{"id":"santos-2020-mezilaurus-itauba","source":"santos-2020","name":"Commercial stem volume from DBH, Mezilaurus itauba (species-specific, Table 2)","output":{"quantity":"stem_volume"},"expression":"exp(-7.25817 + 2.05543 * ln(D))","published":{"expression":"exp(-7.25817 + 2.05543 * ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m3"},"taxon":{"level":"species","name":"Mezilaurus itauba","family":"Lauraceae","group":"broadleaf"},"region":{"scope":"site","countries":["BR"],"place":"Tapajós National Forest, Pará (community forest management concession), eastern Brazilian Amazon","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":593,"dbh_min_cm":50,"r2":0.68,"method":"Model 2 (Husch) fitted by least squares on ln(vc); r2 is the adjusted R² recalculated in arithmetic units; Syx = 1.712 m3 (26.2%)"},"evidence":[{"field":"expression","quote":"M. itauba vc = exp(-7.25817 + 2.05543ln(DBH)) 0.68 1.712 26.2","locator":"Table 2, SSEs rows"},{"field":"fit.n_trees","quote":"Mezilaurus itauba (Meisn.) Taub. ex Mez. Itaúba 593 65","locator":"Table 1 (columns: adjustment, validation)"},{"field":"fit.dbh_min_cm","quote":"29,119 trees (50.0 cm ≤ DBH ≤ 175.0 cm) of 43 commercial species","locator":"Material and Methods, Data collection"},{"field":"output","quote":"composed the commercial volume (vc) of the stem","locator":"Material and Methods, Data collection"}],"check":[{"inputs":{"D":60},"expected":3.1819,"origin":"computed","note":"hand-computed from the Table 2 coefficients"},{"inputs":{"D":90},"expected":7.3219,"origin":"computed","note":"hand-computed from the Table 2 coefficients"},{"inputs":{"D":130},"expected":15.591,"origin":"computed","note":"hand-computed from the Table 2 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Species-specific equation (M. itauba, Itaúba). vc is the commercial volume of the stem (sum of Smalian log volumes, hollows discounted), not total tree volume. No back-transformation correction factor is stated, so none is applied. n_trees is the adjustment (fitting) set; DBH range is that of the whole dataset (all species), not stated per species. Ten percent of trees were held out for validation. 8 of the 36+1 species equations in Table 2 were added (the ten most important commercial species by harvested volume plus H. petraeum); the generic FMA equation was rejected by the authors' own paired t-test. "},{"id":"santos-2020-vochysia-maxima","source":"santos-2020","name":"Commercial stem volume from DBH, Vochysia maxima (species-specific, Table 2)","output":{"quantity":"stem_volume"},"expression":"exp(-6.66554 + 1.90852 * ln(D))","published":{"expression":"exp(-6.66554 + 1.90852 * ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m3"},"taxon":{"level":"species","name":"Vochysia maxima","family":"Vochysiaceae","group":"broadleaf"},"region":{"scope":"site","countries":["BR"],"place":"Tapajós National Forest, Pará (community forest management concession), eastern Brazilian Amazon","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":1541,"dbh_min_cm":50,"r2":0.55,"method":"Model 2 (Husch) fitted by least squares on ln(vc); r2 is the adjusted R² recalculated in arithmetic units; Syx = 3.027 m3 (34.0%)"},"evidence":[{"field":"expression","quote":"V. maxima vc = exp(-6.66554 + 1.90852ln(DBH)) 0.55 3.027 34.0","locator":"Table 2, SSEs rows"},{"field":"fit.n_trees","quote":"Vochysia maxima Ducke Quaruba 1,541 172","locator":"Table 1 (columns: adjustment, validation)"},{"field":"fit.dbh_min_cm","quote":"29,119 trees (50.0 cm ≤ DBH ≤ 175.0 cm) of 43 commercial species","locator":"Material and Methods, Data collection"},{"field":"output","quote":"composed the commercial volume (vc) of the stem","locator":"Material and Methods, Data collection"}],"check":[{"inputs":{"D":60},"expected":3.1538,"origin":"computed","note":"hand-computed from the Table 2 coefficients"},{"inputs":{"D":90},"expected":6.8376,"origin":"computed","note":"hand-computed from the Table 2 coefficients"},{"inputs":{"D":130},"expected":13.794,"origin":"computed","note":"hand-computed from the Table 2 coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Species-specific equation (V. maxima, Quaruba). vc is the commercial volume of the stem (sum of Smalian log volumes, hollows discounted), not total tree volume. No back-transformation correction factor is stated, so none is applied. n_trees is the adjustment (fitting) set; DBH range is that of the whole dataset (all species), not stated per species. Ten percent of trees were held out for validation. 8 of the 36+1 species equations in Table 2 were added (the ten most important commercial species by harvested volume plus H. petraeum); the generic FMA equation was rejected by the authors' own paired t-test. "},{"id":"segura-2005-btot-eq11","source":"segura-2005","name":"Total AGB from DBH squared, log form (Eq. 11)","output":{"quantity":"agb"},"expression":"1000 * exp(0.76 + 0.00015 * D^2)","published":{"expression":"exp(0.76 + 0.00015 * DBH^2)","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"Mg"},"taxon":{"level":"mixed","name":"Seven dominant canopy species (Carapa guianensis, Inga coruscans, Laetia procera, Pentaclethra macroloba, Stryphnodendron microstachyum, Tapirira guianensis, Vochysia ferruginea)","group":"broadleaf"},"region":{"scope":"regional","countries":["CR"],"place":"Tirimbina (Sarapiquí) and Corinto (Guápiles), northern Costa Rica","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":19,"dbh_min_cm":60,"dbh_max_cm":105,"r2":0.71,"method":"Least-squares regression (SAS), r2 is the adjusted coefficient of determination"},"evidence":[{"field":"expression","quote":"ln B tot = c + a DBH2; c 0.76 ± 0.16; a 0.00015 ± 0.000023","locator":"Table 5, Eq. 11"},{"field":"fit.n_trees","quote":"19 individual trees were measured before harvest","locator":"Methods, p. 3"},{"field":"fit.dbh_max_cm","quote":"adjusted well in the interval of diameters sampled (60–105 cm)","locator":"Discussion, p. 7"}],"check":[{"inputs":{"D":80},"expected":5584.5285,"origin":"computed","note":"computed from the printed coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"No back-transform correction factor is stated, so none is applied. Only trees with DBH ≥ 60 cm were harvested; the authors warn the models tend to overestimate outside 60-105 cm. Table 5 gives B tot in 'mg/tree', meaning Mg (Table 3 reports total biomass in Mg, mean 6.7 Mg); the canonical expression multiplies by 1000 to give kg. Recommended by the authors with Eq. 12 because they need DBH only. The printed form 'ln B tot = c + a DBH2' is read as DBH squared (the coefficient 0.00015 and the prediction scale only fit that reading). Includes foliage (stem plus branches and foliage)."},{"id":"segura-2005-btot-eq12","source":"segura-2005","name":"Total AGB from DBH, power law (Eq. 12)","output":{"quantity":"agb"},"expression":"1000 * exp(-7.27 + 2.07 * ln(D))","published":{"expression":"exp(-7.27 + 2.07 * ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"Mg"},"taxon":{"level":"mixed","name":"Seven dominant canopy species (Carapa guianensis, Inga coruscans, Laetia procera, Pentaclethra macroloba, Stryphnodendron microstachyum, Tapirira guianensis, Vochysia ferruginea)","group":"broadleaf"},"region":{"scope":"regional","countries":["CR"],"place":"Tirimbina (Sarapiquí) and Corinto (Guápiles), northern Costa Rica","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":19,"dbh_min_cm":60,"dbh_max_cm":105,"r2":0.71,"method":"Least-squares regression (SAS), r2 is the adjusted coefficient of determination"},"evidence":[{"field":"expression","quote":"ln B tot = c + a ln DBH; c −7.27 ± 1.37; a 2.07 ± 0.31","locator":"Table 5, Eq. 12"},{"field":"fit.n_trees","quote":"19 individual trees were measured before harvest","locator":"Methods, p. 3"},{"field":"fit.dbh_max_cm","quote":"adjusted well in the interval of diameters sampled (60–105 cm)","locator":"Discussion, p. 7"}],"check":[{"inputs":{"D":80},"expected":6054.4597,"origin":"computed","note":"computed from the printed coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"No back-transform correction factor is stated, so none is applied. Only trees with DBH ≥ 60 cm were harvested; the authors warn the models tend to overestimate outside 60-105 cm. Table 5 gives B tot in 'mg/tree', meaning Mg (Table 3 reports total biomass in Mg, mean 6.7 Mg); the canonical expression multiplies by 1000 to give kg. Recommended by the authors because it needs DBH only."},{"id":"segura-2005-btot-eq15","source":"segura-2005","name":"Total AGB from DBH and total height (Eq. 15)","output":{"quantity":"agb"},"expression":"1000 * exp(-6.93 + 1.86 * ln(D) + 0.0045 * ln(D) * H)","published":{"expression":"exp(-6.93 + 1.86 * ln(DBH) + 0.0045 * ln(DBH) * H)","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D"},"output_unit":"Mg"},"taxon":{"level":"mixed","name":"Seven dominant canopy species (Carapa guianensis, Inga coruscans, Laetia procera, Pentaclethra macroloba, Stryphnodendron microstachyum, Tapirira guianensis, Vochysia ferruginea)","group":"broadleaf"},"region":{"scope":"regional","countries":["CR"],"place":"Tirimbina (Sarapiquí) and Corinto (Guápiles), northern Costa Rica","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":19,"dbh_min_cm":60,"dbh_max_cm":105,"r2":0.87,"method":"Least-squares regression (SAS), r2 is the adjusted coefficient of determination"},"evidence":[{"field":"expression","quote":"ln B tot = c + a ln DBH + b (ln DBH) H; c −6.93 ± 0.91; a 1.86 ± 0.21; b 0.0045 ± 0.00095","locator":"Table 5, Eq. 15"},{"field":"fit.n_trees","quote":"19 individual trees were measured before harvest","locator":"Methods, p. 3"},{"field":"fit.dbh_max_cm","quote":"adjusted well in the interval of diameters sampled (60–105 cm)","locator":"Discussion, p. 7"}],"check":[{"inputs":{"D":80,"H":28},"expected":5886.7549,"origin":"computed","note":"computed from the printed coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"No back-transform correction factor is stated, so none is applied. Only trees with DBH ≥ 60 cm were harvested; the authors warn the models tend to overestimate outside 60-105 cm. Table 5 gives B tot in 'mg/tree', meaning Mg (Table 3 reports total biomass in Mg, mean 6.7 Mg); the canonical expression multiplies by 1000 to give kg. Best-fit biomass model (adjusted R2 0.87) but needs total height."},{"id":"segura-2005-vstem-lnd","source":"segura-2005","name":"Stem volume from DBH (Eq. 5)","output":{"quantity":"stem_volume"},"expression":"exp(-8.70 + 2.41 * ln(D))","published":{"expression":"exp(-8.70 + 2.41 * ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m3"},"taxon":{"level":"mixed","name":"Seven dominant canopy species (Carapa guianensis, Inga coruscans, Laetia procera, Pentaclethra macroloba, Stryphnodendron microstachyum, Tapirira guianensis, Vochysia ferruginea)","group":"broadleaf"},"region":{"scope":"regional","countries":["CR"],"place":"Tirimbina (Sarapiquí) and Corinto (Guápiles), northern Costa Rica","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":19,"dbh_min_cm":60,"dbh_max_cm":105,"r2":0.66,"method":"Least-squares regression (SAS), r2 is the adjusted coefficient of determination"},"evidence":[{"field":"expression","quote":"ln V stem = c + a ln DBH; c −8.70 ± 1.77; a 2.41 ± 0.40","locator":"Table 4, Eq. 5"},{"field":"fit.n_trees","quote":"19 individual trees were measured before harvest","locator":"Methods, p. 3"},{"field":"fit.dbh_max_cm","quote":"adjusted well in the interval of diameters sampled (60–105 cm)","locator":"Discussion, p. 7"}],"check":[{"inputs":{"D":80},"expected":6.4281,"origin":"computed","note":"computed from the printed coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"No back-transform correction factor is stated, so none is applied. Only trees with DBH ≥ 60 cm were harvested; the authors warn the models tend to overestimate outside 60-105 cm. Table 4 caption labels V stem in Mg/tree, which is a typo: Table 3 gives stem volume in m3 and Eq. 5 at the mean DBH reproduces that scale (about 7 m3). Stem = commercial stem + non-commercial stem + stump."},{"id":"segura-2005-vtot-lnd","source":"segura-2005","name":"Total tree volume from DBH (Eq. 8)","output":{"quantity":"total_volume"},"expression":"exp(-7.15 + 2.15 * ln(D))","published":{"expression":"exp(-7.15 + 2.15 * ln(DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m3"},"taxon":{"level":"mixed","name":"Seven dominant canopy species (Carapa guianensis, Inga coruscans, Laetia procera, Pentaclethra macroloba, Stryphnodendron microstachyum, Tapirira guianensis, Vochysia ferruginea)","group":"broadleaf"},"region":{"scope":"regional","countries":["CR"],"place":"Tirimbina (Sarapiquí) and Corinto (Guápiles), northern Costa Rica","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":19,"dbh_min_cm":60,"dbh_max_cm":105,"r2":0.81,"method":"Least-squares regression (SAS), r2 is the adjusted coefficient of determination"},"evidence":[{"field":"expression","quote":"ln V tot = c + a ln DBH; c −7.15 ± 1.07; a 2.15 ± 0.24","locator":"Table 4, Eq. 8"},{"field":"fit.n_trees","quote":"19 individual trees were measured before harvest","locator":"Methods, p. 3"},{"field":"fit.dbh_max_cm","quote":"adjusted well in the interval of diameters sampled (60–105 cm)","locator":"Discussion, p. 7"}],"check":[{"inputs":{"D":80},"expected":9.6925,"origin":"computed","note":"computed from the printed coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"No back-transform correction factor is stated, so none is applied. Only trees with DBH ≥ 60 cm were harvested; the authors warn the models tend to overestimate outside 60-105 cm. Total volume = stem plus large and small branches. Adjusted R2 0.81."},{"id":"shen-2025-agb-d","source":"shen-2025","name":"Chinese pine aboveground biomass from DBH (age-sequence plantations)","output":{"quantity":"agb"},"expression":"0.7735 * D^1.6736","published":{"expression":"0.7735 * D^1.6736","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus tabuliformis","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["CN"],"place":"Lahailing forestry station, Chengde, northern Hebei Province","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":60,"r2":0.982,"method":"non-linear least squares"},"evidence":[{"field":"expression","quote":"M = aD^b","locator":"Section 2.3, Eq. 1"},{"field":"expression","quote":"Aboveground (1) 0.7735 1.6736 0.982 398 <0.001","locator":"Table 3"},{"field":"fit.r2","quote":"Aboveground (1) 0.7735 1.6736 0.982 398 <0.001","locator":"Table 3"},{"field":"fit.n_trees","quote":"In total, 60 sample trees were selected for the destructive measurement.","locator":"Section 2.2"}],"check":[{"inputs":{"D":10},"expected":36.48,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":25},"expected":169.06,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"M = aD^b. Power model M = aD^b (or a(D²H)^b) fitted by non-linear least squares (no log back-transform). Sample trees were 60 destructively harvested trees from stands aged 8, 18, 32 and 46 years; the paper does not give the DBH or height range of the sample trees (Table 1 gives stand means only), so none is given. Roots are coarse roots (>5 mm), so the root and total-tree equations leave out fine roots. The third form in Table 3, M = aD^b A^c, needs stand age (not a canonical variable) and is not added. Aboveground biomass was calculated as the sum of stem, branch and foliage biomass."},{"id":"shen-2025-branch-d","source":"shen-2025","name":"Chinese pine branch biomass from DBH (age-sequence plantations)","output":{"quantity":"branch_biomass"},"expression":"0.0583 * D^2.0492","published":{"expression":"0.0583 * D^2.0492","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus tabuliformis","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["CN"],"place":"Lahailing forestry station, Chengde, northern Hebei Province","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":60,"r2":0.931,"method":"non-linear least squares"},"evidence":[{"field":"expression","quote":"M = aD^b","locator":"Section 2.3, Eq. 1"},{"field":"expression","quote":"Branch (1) 0.0583 2.0492 0.931 287 <0.001","locator":"Table 3"},{"field":"fit.r2","quote":"Branch (1) 0.0583 2.0492 0.931 287 <0.001","locator":"Table 3"},{"field":"fit.n_trees","quote":"In total, 60 sample trees were selected for the destructive measurement.","locator":"Section 2.2"}],"check":[{"inputs":{"D":10},"expected":6.5293,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":25},"expected":42.69,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"M = aD^b. Power model M = aD^b (or a(D²H)^b) fitted by non-linear least squares (no log back-transform). Sample trees were 60 destructively harvested trees from stands aged 8, 18, 32 and 46 years; the paper does not give the DBH or height range of the sample trees (Table 1 gives stand means only), so none is given. Roots are coarse roots (>5 mm), so the root and total-tree equations leave out fine roots. The third form in Table 3, M = aD^b A^c, needs stand age (not a canonical variable) and is not added."},{"id":"shen-2025-foliage-d","source":"shen-2025","name":"Chinese pine foliage biomass from DBH (age-sequence plantations)","output":{"quantity":"foliage_biomass"},"expression":"0.0495 * D^1.9995","published":{"expression":"0.0495 * D^1.9995","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus tabuliformis","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["CN"],"place":"Lahailing forestry station, Chengde, northern Hebei Province","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":60,"r2":0.94,"method":"non-linear least squares"},"evidence":[{"field":"expression","quote":"M = aD^b","locator":"Section 2.3, Eq. 1"},{"field":"expression","quote":"Foliage (1) 0.0495 1.9995 0.940 239 <0.001","locator":"Table 3"},{"field":"fit.r2","quote":"Foliage (1) 0.0495 1.9995 0.940 239 <0.001","locator":"Table 3"},{"field":"fit.n_trees","quote":"In total, 60 sample trees were selected for the destructive measurement.","locator":"Section 2.2"}],"check":[{"inputs":{"D":10},"expected":4.9443,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":25},"expected":30.888,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"M = aD^b. Power model M = aD^b (or a(D²H)^b) fitted by non-linear least squares (no log back-transform). Sample trees were 60 destructively harvested trees from stands aged 8, 18, 32 and 46 years; the paper does not give the DBH or height range of the sample trees (Table 1 gives stand means only), so none is given. Roots are coarse roots (>5 mm), so the root and total-tree equations leave out fine roots. The third form in Table 3, M = aD^b A^c, needs stand age (not a canonical variable) and is not added."},{"id":"shen-2025-total-d","source":"shen-2025","name":"Chinese pine total tree biomass from DBH (age-sequence plantations)","output":{"quantity":"total_biomass"},"expression":"0.8996 * D^1.5732","published":{"expression":"0.8996 * D^1.5732","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus tabuliformis","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["CN"],"place":"Lahailing forestry station, Chengde, northern Hebei Province","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":60,"r2":0.985,"method":"non-linear least squares"},"evidence":[{"field":"expression","quote":"M = aD^b","locator":"Section 2.3, Eq. 1"},{"field":"expression","quote":"Total tree (1) 0.8996 1.5732 0.985 409 <0.001","locator":"Table 3"},{"field":"fit.r2","quote":"Total tree (1) 0.8996 1.5732 0.985 409 <0.001","locator":"Table 3"},{"field":"fit.n_trees","quote":"In total, 60 sample trees were selected for the destructive measurement.","locator":"Section 2.2"}],"check":[{"inputs":{"D":10},"expected":33.67,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":25},"expected":142.33,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"M = aD^b. Power model M = aD^b (or a(D²H)^b) fitted by non-linear least squares (no log back-transform). Sample trees were 60 destructively harvested trees from stands aged 8, 18, 32 and 46 years; the paper does not give the DBH or height range of the sample trees (Table 1 gives stand means only), so none is given. Roots are coarse roots (>5 mm), so the root and total-tree equations leave out fine roots. The third form in Table 3, M = aD^b A^c, needs stand age (not a canonical variable) and is not added. Total tree = aboveground + root."},{"id":"shumie-2024-agb","source":"shumie-2024","name":"Acacia mearnsii Aboveground biomass from D and H (Table 3, model 1)","output":{"quantity":"agb"},"expression":"1.92 + 0.02 * (D * H)^1.68","published":{"expression":"1.92 + 0.02 * (D * H)^1.68","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Acacia mearnsii","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["ET"],"place":"Farmer-managed woodlots, northwestern Ethiopia (Amhara)","biomes":["tropical","montane"]},"stand":"plantation","fit":{"n_trees":24,"dbh_min_cm":1.1,"dbh_max_cm":11.9,"h_min_m":2.1,"h_max_m":6.8,"r2":0.9749,"method":"nonlinear regression, form a + b(DH)^c"},"evidence":[{"field":"expression","quote":"1.92 + 0.02(DH)1.68","locator":"Table 3, AGB model 1; Conclusion"},{"field":"fit.n_trees","quote":"twenty-four trees of varying ages (3, 4, 5, and 6 years) were harvested","locator":"Abstract"},{"field":"fit.dbh_min_cm","quote":"Tree parameters DBH (cm) 24 1.1 7.1 11.9; Height (m) 24 2.1 4.4 6.8 (n, min, mean, max)","locator":"Table 2"}],"check":[{"inputs":{"D":3,"H":2.5},"expected":2.5104,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":7,"H":4.4},"expected":8.2557,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":11,"H":6.5},"expected":27.9974,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Coefficients are printed to two decimals only, so predictions are coarse for small trees. D is DBH in cm, H in m, biomass in kg (Table 2). Trees aged 3 to 6 years. R2 printed as a percentage and converted to a fraction. Table 3 was read from the journal CSV download; the column order is a, b, c, R2, RMSE, MAD, AIC, p. Stem, AGB and total biomass model 1 are the best models per the authors. Branch and leaf models are not added (Table 3: R2 about 0.5 for branches and about 0.6 for leaves)."},{"id":"shumie-2024-bgb","source":"shumie-2024","name":"Acacia mearnsii belowground biomass from D and H (Table 3, model 3)","output":{"quantity":"bgb"},"expression":"0.01 * D^2.57 * H^0.09","published":{"expression":"0.01 * D^2.57 * H^0.09","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Acacia mearnsii","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["ET"],"place":"Farmer-managed woodlots, northwestern Ethiopia (Amhara)","biomes":["tropical","montane"]},"stand":"plantation","fit":{"n_trees":24,"dbh_min_cm":1.1,"dbh_max_cm":11.9,"h_min_m":2.1,"h_max_m":6.8,"r2":0.9241,"method":"nonlinear regression, form a D^b H^c"},"evidence":[{"field":"expression","quote":"0.01D2.57H0.09","locator":"Conclusion, and Figure 3 caption (BGB = 0.01D2.57 H0.09)"},{"field":"fit.r2","quote":"Below ground biomass 3. aDbHc 0.01 2.57 0.09 92.41","locator":"Table 3 (CSV rows)"},{"field":"fit.n_trees","quote":"twenty-four trees of varying ages (3, 4, 5, and 6 years) were harvested","locator":"Abstract"}],"check":[{"inputs":{"D":3,"H":2.5},"expected":0.1828,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":7,"H":4.4},"expected":1.6975,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":11,"H":6.5},"expected":5.6175,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Coefficient a is printed as 0.01 (two decimals), so predictions are coarse. D in cm, H in m, biomass in kg. Trees aged 3 to 6 years. R2 printed as 92.41 percent. Root biomass sampled as total root dry weight (coarse, medium and fine roots)."},{"id":"shumie-2024-stem","source":"shumie-2024","name":"Acacia mearnsii Stem biomass from D and H (Table 3, model 1)","output":{"quantity":"stem_biomass"},"expression":"0.99 + 0.01 * (D * H)^1.75","published":{"expression":"0.99 + 0.01 * (D * H)^1.75","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Acacia mearnsii","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["ET"],"place":"Farmer-managed woodlots, northwestern Ethiopia (Amhara)","biomes":["tropical","montane"]},"stand":"plantation","fit":{"n_trees":24,"dbh_min_cm":1.1,"dbh_max_cm":11.9,"h_min_m":2.1,"h_max_m":6.8,"r2":0.9864,"method":"nonlinear regression, form a + b(DH)^c"},"evidence":[{"field":"expression","quote":"Stem biomass 1. a + b(DH)c 0.99 0.01 1.75 98.64","locator":"Table 3, Stem biomass model 1"},{"field":"fit.n_trees","quote":"twenty-four trees of varying ages (3, 4, 5, and 6 years) were harvested","locator":"Abstract"},{"field":"fit.dbh_min_cm","quote":"Tree parameters DBH (cm) 24 1.1 7.1 11.9; Height (m) 24 2.1 4.4 6.8 (n, min, mean, max)","locator":"Table 2"}],"check":[{"inputs":{"D":3,"H":2.5},"expected":1.3299,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":7,"H":4.4},"expected":5.0168,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":11,"H":6.5},"expected":18.5707,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Coefficients are printed to two decimals only, so predictions are coarse for small trees. D is DBH in cm, H in m, biomass in kg (Table 2). Trees aged 3 to 6 years. R2 printed as a percentage and converted to a fraction. Table 3 was read from the journal CSV download; the column order is a, b, c, R2, RMSE, MAD, AIC, p. Stem, AGB and total biomass model 1 are the best models per the authors. Branch and leaf models are not added (Table 3: R2 about 0.5 for branches and about 0.6 for leaves)."},{"id":"shumie-2024-total","source":"shumie-2024","name":"Acacia mearnsii Total tree biomass from D and H (Table 3, model 1)","output":{"quantity":"total_biomass"},"expression":"2.25 + 0.02 * (D * H)^1.69","published":{"expression":"2.25 + 0.02 * (D * H)^1.69","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Acacia mearnsii","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["ET"],"place":"Farmer-managed woodlots, northwestern Ethiopia (Amhara)","biomes":["tropical","montane"]},"stand":"plantation","fit":{"n_trees":24,"dbh_min_cm":1.1,"dbh_max_cm":11.9,"h_min_m":2.1,"h_max_m":6.8,"r2":0.9782,"method":"nonlinear regression, form a + b(DH)^c"},"evidence":[{"field":"expression","quote":"Total biomass 1. a + b(DH)c 2.25 0.02 1.69 97.82","locator":"Table 3, Total biomass model 1"},{"field":"fit.n_trees","quote":"twenty-four trees of varying ages (3, 4, 5, and 6 years) were harvested","locator":"Abstract"},{"field":"fit.dbh_min_cm","quote":"Tree parameters DBH (cm) 24 1.1 7.1 11.9; Height (m) 24 2.1 4.4 6.8 (n, min, mean, max)","locator":"Table 2"}],"check":[{"inputs":{"D":3,"H":2.5},"expected":2.8524,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":7,"H":4.4},"expected":8.8066,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":11,"H":6.5},"expected":29.4649,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Coefficients are printed to two decimals only, so predictions are coarse for small trees. D is DBH in cm, H in m, biomass in kg (Table 2). Trees aged 3 to 6 years. R2 printed as a percentage and converted to a fraction. Table 3 was read from the journal CSV download; the column order is a, b, c, R2, RMSE, MAD, AIC, p. Stem, AGB and total biomass model 1 are the best models per the authors. Branch and leaf models are not added (Table 3: R2 about 0.5 for branches and about 0.6 for leaves)."},{"id":"siqing-2022-agb","source":"siqing-2022","name":"Mongolian pine plantation aboveground biomass (stem+branch+foliage), Mu Us (Table 3)","output":{"quantity":"agb"},"expression":"0.041 * D^1.699 * H^0.983 + 0.020 * D^2.497 + 0.094 * D^1.898","published":{"expression":"0.041 * D^1.699 * H^0.983 + 0.020 * D^2.497 + 0.094 * D^1.898","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus sylvestris var. mongolica","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Mu Us Sandy Land, Ordos, Inner Mongolia, China","biomes":["temperate","dryland"]},"stand":"plantation","fit":{"n_trees":131,"dbh_min_cm":2.4,"dbh_max_cm":44.2,"h_min_m":1.9,"h_max_m":15.25,"method":"weighted nonlinear seemingly unrelated regression (WNSUR), additive system"},"evidence":[{"field":"expression","quote":"Aboveground Wag = 0.041D1.699H0.983 + 0.020D2.497 + 0.094D1.898","locator":"Table 3, Aboveground row"},{"field":"fit.n_trees","quote":"A total of 131 trees were measured","locator":"Abstract"}],"check":[{"inputs":{"D":8,"H":5},"expected":15.291,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":9},"expected":120.8676,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":35,"H":13},"expected":437.9003,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Additive system fitted by WNSUR (Table 3). 131 trees (116 felled, 15 climbed standing trees); n and ranges from Table 1 and Section 2.2. Biomass of stump not included. Exponents are printed flattened in the HTML text (D followed by its exponent); read as D^exponent and consistent with Table 2. No R2 recorded (the paper gives adjusted R2 only). Stump excluded (Section 2.2)."},{"id":"siqing-2022-branch","source":"siqing-2022","name":"Mongolian pine plantation branch biomass from D, Mu Us (Table 3)","output":{"quantity":"branch_biomass"},"expression":"0.020 * D^2.497","published":{"expression":"0.020 * D^2.497","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus sylvestris var. mongolica","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Mu Us Sandy Land, Ordos, Inner Mongolia, China","biomes":["temperate","dryland"]},"stand":"plantation","fit":{"n_trees":131,"dbh_min_cm":2.4,"dbh_max_cm":44.2,"h_min_m":1.9,"h_max_m":15.25,"method":"weighted nonlinear seemingly unrelated regression (WNSUR), additive system"},"evidence":[{"field":"expression","quote":"Branch Wbr = 0.020D2.497","locator":"Table 3, Branch row"},{"field":"fit.n_trees","quote":"A total of 131 trees were measured","locator":"Abstract"}],"check":[{"inputs":{"D":8,"H":5},"expected":3.5979,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":9},"expected":35.457,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":35,"H":13},"expected":143.4062,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Additive system fitted by WNSUR (Table 3). 131 trees (116 felled, 15 climbed standing trees); n and ranges from Table 1 and Section 2.2. Biomass of stump not included. Exponents are printed flattened in the HTML text (D followed by its exponent); read as D^exponent and consistent with Table 2. No R2 recorded (the paper gives adjusted R2 only)."},{"id":"siqing-2022-foliage","source":"siqing-2022","name":"Mongolian pine plantation foliage biomass from D, Mu Us (Table 3)","output":{"quantity":"foliage_biomass"},"expression":"0.094 * D^1.898","published":{"expression":"0.094 * D^1.898","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus sylvestris var. mongolica","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Mu Us Sandy Land, Ordos, Inner Mongolia, China","biomes":["temperate","dryland"]},"stand":"plantation","fit":{"n_trees":131,"dbh_min_cm":2.4,"dbh_max_cm":44.2,"h_min_m":1.9,"h_max_m":15.25,"method":"weighted nonlinear seemingly unrelated regression (WNSUR), additive system"},"evidence":[{"field":"expression","quote":"Foliage Wfo = 0.094D1.898","locator":"Table 3, Foliage row"},{"field":"fit.n_trees","quote":"A total of 131 trees were measured","locator":"Abstract"}],"check":[{"inputs":{"D":8,"H":5},"expected":4.8662,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":9},"expected":27.7002,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":35,"H":13},"expected":80.1252,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Additive system fitted by WNSUR (Table 3). 131 trees (116 felled, 15 climbed standing trees); n and ranges from Table 1 and Section 2.2. Biomass of stump not included. Exponents are printed flattened in the HTML text (D followed by its exponent); read as D^exponent and consistent with Table 2. No R2 recorded (the paper gives adjusted R2 only)."},{"id":"siqing-2022-stem","source":"siqing-2022","name":"Mongolian pine plantation stem biomass from D and H, Mu Us (Table 3)","output":{"quantity":"stem_biomass"},"expression":"0.041 * D^1.699 * H^0.983","published":{"expression":"0.041 * D^1.699 * H^0.983","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus sylvestris var. mongolica","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["CN"],"place":"Mu Us Sandy Land, Ordos, Inner Mongolia, China","biomes":["temperate","dryland"]},"stand":"plantation","fit":{"n_trees":131,"dbh_min_cm":2.4,"dbh_max_cm":44.2,"h_min_m":1.9,"h_max_m":15.25,"method":"weighted nonlinear seemingly unrelated regression (WNSUR), additive system"},"evidence":[{"field":"expression","quote":"Stem Wst = 0.041D1.699H0.983","locator":"Table 3, Stem row"},{"field":"fit.n_trees","quote":"A total of 131 trees were measured","locator":"Abstract"}],"check":[{"inputs":{"D":8,"H":5},"expected":6.8269,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":20,"H":9},"expected":57.7104,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":35,"H":13},"expected":214.3689,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Additive system fitted by WNSUR (Table 3). 131 trees (116 felled, 15 climbed standing trees); n and ranges from Table 1 and Section 2.2. Biomass of stump not included. Exponents are printed flattened in the HTML text (D followed by its exponent); read as D^exponent and consistent with Table 2. No R2 recorded (the paper gives adjusted R2 only)."},{"id":"song-2026-needles","source":"song-2026","name":"Pinus densiflora needle (crown fuel) biomass from DBH (Table 3)","output":{"quantity":"foliage_biomass"},"expression":"exp(1.893 * ln(D) - 3.835) * 1.028","published":{"expression":"exp(1.893 * ln(DBH) - 3.835) * 1.028","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus densiflora","family":"Pinaceae","group":"conifer"},"region":{"scope":"national","countries":["KR"],"place":"Seven sites across South Korea (Daegu, Yangyang, Yeongju, Bonghwa, Goryeong, Mungyeong, Seosan)","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":67,"dbh_min_cm":5,"dbh_max_cm":35.1,"h_min_m":4.5,"h_max_m":19.6,"cf":1.028,"method":"OLS regression of ln(W) on ln(DBH), back-transformed with a correction factor"},"evidence":[{"field":"expression","quote":"ln(Wt) = a ln(DBH) + b","locator":"Eq. 1"},{"field":"expression","quote":"Wt = exp(a ln(DBH) + b) × CF","locator":"Eq. 4"},{"field":"expression","quote":"Needles 67 1.893 (0.070) −3.835 (0.200) 0.917 0.236 1.028","locator":"Table 3 (n, a, b, R2adj, s.e.e., correction factor)"},{"field":"fit.n_trees","quote":"A total of 67 sample trees were selected across the seven study areas","locator":"Section 2.2"},{"field":"fit.dbh_max_cm","quote":"The average DBH and tree height were 18.1 cm (range: 5.0–35.1 cm) and 11.1 m (range: 4.5–19.6 m)","locator":"Section 2.2"}],"check":[{"inputs":{"D":10},"expected":1.7357,"origin":"computed","note":"computed from the Table 3 coefficients and correction factor"},{"inputs":{"D":25},"expected":9.835,"origin":"computed","note":"computed from the Table 3 coefficients and correction factor"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Needle dry mass (crown fuel), a foliage-only equation. Printed R2adj is 0.917. In Table 3 column 'a' is the ln(DBH) slope and 'b' the intercept, per Eq. 1. Correction factor 1.028 as printed (exp(s.e.e.^2/2)). Natural forests with a mix of managed and unmanaged stands. The paper also prints branch diameter-class equations (<0.5, 0.5-1, 1-2, 2-4, >4 cm) and a total crown fuel equation (needles + branches, no stem); those are not added because they are partial-branch or crown-only totals with no matching output quantity."},{"id":"ter-mikaelian-2001-managed","source":"ter-mikaelian-2001","name":"Sugar maple leaf biomass from DBH, managed stand (sugar bush)","output":{"quantity":"foliage_biomass"},"expression":"0.00798 * D^2.185","published":{"expression":"0.00798 * DBH^2.185","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Acer saccharum","family":"Sapindaceae","group":"broadleaf"},"region":{"scope":"site","countries":["CA"],"place":"managed stand near Newburgh, eastern Ontario","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":10,"dbh_min_cm":20.5,"dbh_max_cm":63.9,"h_min_m":18,"h_max_m":27,"r2":0.94,"method":"log-linear regression, back-transformed by adding half the squared SEE to the intercept (Baskerville 1972)"},"evidence":[{"field":"expression","quote":"ln(LT) = -4.851 + 2.185*ln(DBH)","locator":"Fig. 2 caption (log form)"},{"field":"expression","quote":"LT = 0.00798*DBH^2.185","locator":"Table 3, back-transformed equation, DBH only (text layer of the PDF is garbled; coefficients cross-checked against the Fig. 2 caption)"},{"field":"fit.n_trees","quote":"Twelve trees were sampled from an unmanaged stand north of Madoc and 10 from a managed stand near Newburg","locator":"Data sampling"}],"check":[{"inputs":{"D":25},"expected":9.0469,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":40},"expected":25.2641,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":60},"expected":61.2722,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Output is total leaf biomass only (oven-dried leaves, kg), not petioles or seeds. Table 3 coefficients are the back-transformed form with the bias correction already in the intercept. Hosts: sugar bushes slightly ice-damaged (<5%) in 2000. The 'managed' stand is a sap-production sugar bush, set as natural stand type (not planted); the paper does not give stand origin. R2 is the log-scale value printed in Table 3 and the Fig. 2 caption."},{"id":"ter-mikaelian-2001-unmanaged","source":"ter-mikaelian-2001","name":"Sugar maple leaf biomass from DBH, unmanaged stand","output":{"quantity":"foliage_biomass"},"expression":"0.00157 * D^2.447","published":{"expression":"0.00157 * DBH^2.447","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Acer saccharum","family":"Sapindaceae","group":"broadleaf"},"region":{"scope":"site","countries":["CA"],"place":"unmanaged stand north of Madoc, eastern Ontario","biomes":["temperate"]},"stand":"natural","fit":{"n_trees":12,"dbh_min_cm":21.3,"dbh_max_cm":58.5,"h_min_m":18,"h_max_m":27.4,"r2":0.923,"method":"log-linear regression, back-transformed by adding half the squared SEE to the intercept (Baskerville 1972)"},"evidence":[{"field":"expression","quote":"ln(LT) = -6.487 + 2.447*ln(DBH)","locator":"Fig. 2 caption (log form)"},{"field":"expression","quote":"LT = 0.00157*DBH^2.447","locator":"Table 3, back-transformed equation, DBH only (text layer of the PDF is garbled; coefficients cross-checked against the Fig. 2 caption)"},{"field":"fit.n_trees","quote":"Twelve trees were sampled from an unmanaged stand north of Madoc and 10 from a managed stand near Newburg","locator":"Data sampling"}],"check":[{"inputs":{"D":25},"expected":4.1367,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":40},"expected":13.0659,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":60},"expected":35.24,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Output is total leaf biomass only (oven-dried leaves, kg), not petioles or seeds. Table 3 coefficients are the back-transformed form with the bias correction already in the intercept. Hosts: sugar bushes slightly ice-damaged (<5%) in 2000. The 'managed' stand is a sap-production sugar bush, set as natural stand type (not planted); the paper does not give stand origin. R2 is the log-scale value printed in Table 3 and the Fig. 2 caption."},{"id":"teshome-2022-stembm-m10","source":"teshome-2022","name":"Stem biomass from rho d2h (M10, best model)","output":{"quantity":"stem_biomass"},"expression":"1.001 * (exp(-2.983 + 0.949 * ln(rho * D^2 * H)))","published":{"expression":"exp(-2.983 + 0.949 * ln(rho * d^2 * h))","units":{"d":"cm","h":"m","rho":"g/cm3"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Seven dominant species of Chilimo forest (Juniperus procera, Podocarpus falcatus, Olea africana, Allophylus abyssinicus, Olinia rochetiana, Rhus glutinosa, Scolopia theifolia)","group":"mixed"},"region":{"scope":"site","countries":["ET"],"place":"Chilimo dry Afromontane forest, central Ethiopia","biomes":["montane"]},"stand":"natural","fit":{"n_trees":193,"dbh_min_cm":6.2,"dbh_max_cm":85,"h_min_m":5.6,"h_max_m":27.4,"cf":1.001,"method":"Robust linear regression (rlm, Tukey bisquare) of ln(response) on ln predictors"},"evidence":[{"field":"expression","quote":"ln(b) = -2.983 + 0.949 * ln(ρ d^2 h)","locator":"Abstract"},{"field":"coefficients","quote":"M10 -2.983 0.949","locator":"Table 6"},{"field":"fit.n_trees","quote":"A total of 193 sampled trees from seven dominant tree species were used to develop the equations.","locator":"Abstract"},{"field":"fit.dbh","quote":"The diameter, total height, and wood density ranged between 6.2 and 85.0 cm, 5.6 and 27.4 m, and 0.52 and 0.82 g cm-3","locator":"Section 3.1"},{"field":"fit.cf","quote":"CF 1.001","locator":"Supplementary Table S4, p. 293"}],"check":[{"inputs":{"D":20,"H":12,"rho":0.6},"expected":97.251654,"origin":"computed","note":"hand-computed from the published form; CF 1.001 applied"},{"inputs":{"D":50,"H":20,"rho":0.6},"expected":898.921023,"origin":"computed","note":"hand-computed from the published form; CF 1.001 applied"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Stem biomass only (branches and leaves not measured), computed as stem volume times basic wood density of each species, so dry mass. Range in fit is for the 194 sampled trees (Section 3.1). Back-transform CF 1.001 from Table S4 applied in expression."},{"id":"teshome-2022-stembm-m7","source":"teshome-2022","name":"Stem biomass from DBH (M7)","output":{"quantity":"stem_biomass"},"expression":"1.003 * (exp(-2.238 + 2.301 * ln(D)))","published":{"expression":"exp(-2.238 + 2.301 * ln(d))","units":{"d":"cm"},"variables":{"d":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Seven dominant species of Chilimo forest (Juniperus procera, Podocarpus falcatus, Olea africana, Allophylus abyssinicus, Olinia rochetiana, Rhus glutinosa, Scolopia theifolia)","group":"mixed"},"region":{"scope":"site","countries":["ET"],"place":"Chilimo dry Afromontane forest, central Ethiopia","biomes":["montane"]},"stand":"natural","fit":{"n_trees":193,"dbh_min_cm":6.2,"dbh_max_cm":85,"h_min_m":5.6,"h_max_m":27.4,"cf":1.003,"method":"Robust linear regression (rlm, Tukey bisquare) of ln(response) on ln predictors"},"evidence":[{"field":"expression","quote":"M7 ln(b) = ln(β0) + β1 ln(d) + ε ... -2.238 2.301","locator":"Table 1 and Table 6"},{"field":"fit.n_trees","quote":"A total of 193 sampled trees from seven dominant tree species were used to develop the equations.","locator":"Abstract"},{"field":"fit.dbh","quote":"The diameter, total height, and wood density ranged between 6.2 and 85.0 cm, 5.6 and 27.4 m","locator":"Section 3.1"},{"field":"fit.cf","quote":"CF 1.003","locator":"Supplementary Table S4, p. 293"}],"check":[{"inputs":{"D":20},"expected":105.443384,"origin":"computed","note":"hand-computed from the published form; CF 1.003 applied"},{"inputs":{"D":50},"expected":868.320169,"origin":"computed","note":"hand-computed from the published form; CF 1.003 applied"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Stem biomass only (branches and leaves not measured), computed as stem volume times basic wood density of each species, so dry mass. Range in fit is for the 194 sampled trees (Section 3.1). Back-transform CF 1.003 from Table S4 applied in expression."},{"id":"teshome-2022-stembm-m8","source":"teshome-2022","name":"Stem biomass from d2h and wood density (M8)","output":{"quantity":"stem_biomass"},"expression":"1.001 * (exp(-3.127 + 0.929 * ln(D^2 * H) + 0.278 * ln(rho)))","published":{"expression":"exp(-3.127 + 0.929 * ln(d^2 * h) + 0.278 * ln(rho))","units":{"d":"cm","h":"m","rho":"g/cm3"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Seven dominant species of Chilimo forest (Juniperus procera, Podocarpus falcatus, Olea africana, Allophylus abyssinicus, Olinia rochetiana, Rhus glutinosa, Scolopia theifolia)","group":"mixed"},"region":{"scope":"site","countries":["ET"],"place":"Chilimo dry Afromontane forest, central Ethiopia","biomes":["montane"]},"stand":"natural","fit":{"n_trees":193,"dbh_min_cm":6.2,"dbh_max_cm":85,"h_min_m":5.6,"h_max_m":27.4,"cf":1.001,"method":"Robust linear regression (rlm, Tukey bisquare) of ln(response) on ln predictors"},"evidence":[{"field":"expression","quote":"M8 ln(b) = ln(β0) + β1 ln(d^2 h) + β2 ln(ρ) + ε ... -3.127 0.929 0.278*","locator":"Table 1 and Table 6"},{"field":"fit.n_trees","quote":"A total of 193 sampled trees from seven dominant tree species were used to develop the equations.","locator":"Abstract"},{"field":"fit.dbh","quote":"The diameter, total height, and wood density ranged between 6.2 and 85.0 cm, 5.6 and 27.4 m","locator":"Section 3.1"},{"field":"fit.cf","quote":"CF 1.001","locator":"Supplementary Table S4, p. 293"}],"check":[{"inputs":{"D":20,"H":12,"rho":0.6},"expected":100.137037,"origin":"computed","note":"hand-computed from the published form; CF 1.001 applied"},{"inputs":{"D":50,"H":20,"rho":0.6},"expected":883.211329,"origin":"computed","note":"hand-computed from the published form; CF 1.001 applied"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Stem biomass only (branches and leaves not measured), computed as stem volume times basic wood density of each species, so dry mass. Range in fit is for the 194 sampled trees (Section 3.1). The wood density coefficient (0.278) is marked non-significant at alpha = 0.05 in Table 6. Back-transform CF 1.001 from Table S4 applied in expression."},{"id":"teshome-2022-stembm-m9","source":"teshome-2022","name":"Stem biomass from DBH, height and wood density (M9)","output":{"quantity":"stem_biomass"},"expression":"1.001 * (exp(-3.142 + 1.847 * ln(D) + 0.945 * ln(H) + 0.274 * ln(rho)))","published":{"expression":"exp(-3.142 + 1.847 * ln(d) + 0.945 * ln(h) + 0.274 * ln(rho))","units":{"d":"cm","h":"m","rho":"g/cm3"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Seven dominant species of Chilimo forest (Juniperus procera, Podocarpus falcatus, Olea africana, Allophylus abyssinicus, Olinia rochetiana, Rhus glutinosa, Scolopia theifolia)","group":"mixed"},"region":{"scope":"site","countries":["ET"],"place":"Chilimo dry Afromontane forest, central Ethiopia","biomes":["montane"]},"stand":"natural","fit":{"n_trees":193,"dbh_min_cm":6.2,"dbh_max_cm":85,"h_min_m":5.6,"h_max_m":27.4,"cf":1.001,"method":"Robust linear regression (rlm, Tukey bisquare) of ln(response) on ln predictors"},"evidence":[{"field":"expression","quote":"M9 ln(b) = ln(β0) + β1 ln(d) + β2 ln(h) + β3 ln(ρ) + ε ... -3.142 1.847 0.945 0.274*","locator":"Table 1 and Table 6"},{"field":"fit.n_trees","quote":"A total of 193 sampled trees from seven dominant tree species were used to develop the equations.","locator":"Abstract"},{"field":"fit.dbh","quote":"The diameter, total height, and wood density ranged between 6.2 and 85.0 cm, 5.6 and 27.4 m","locator":"Section 3.1"},{"field":"fit.cf","quote":"CF 1.001","locator":"Supplementary Table S4, p. 293"}],"check":[{"inputs":{"D":20,"H":12,"rho":0.6},"expected":99.522923,"origin":"computed","note":"hand-computed from the published form; CF 1.001 applied"},{"inputs":{"D":50,"H":20,"rho":0.6},"expected":876.123248,"origin":"computed","note":"hand-computed from the published form; CF 1.001 applied"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Stem biomass only (branches and leaves not measured), computed as stem volume times basic wood density of each species, so dry mass. Range in fit is for the 194 sampled trees (Section 3.1). The wood density coefficient (0.274) is marked non-significant at alpha = 0.05 in Table 6. Back-transform CF 1.001 from Table S4 applied in expression."},{"id":"teshome-2022-vol-m1","source":"teshome-2022","name":"Stem volume from DBH (M1)","output":{"quantity":"stem_volume"},"expression":"1.004 * (exp(-8.907 + 2.385 * ln(D)))","published":{"expression":"exp(-8.907 + 2.385 * ln(d))","units":{"d":"cm"},"variables":{"d":"D"},"output_unit":"m3"},"taxon":{"level":"mixed","name":"Seven dominant species of Chilimo forest (Juniperus procera, Podocarpus falcatus, Olea africana, Allophylus abyssinicus, Olinia rochetiana, Rhus glutinosa, Scolopia theifolia)","group":"mixed"},"region":{"scope":"site","countries":["ET"],"place":"Chilimo dry Afromontane forest, central Ethiopia","biomes":["montane"]},"stand":"natural","fit":{"n_trees":193,"dbh_min_cm":6.2,"dbh_max_cm":85,"h_min_m":5.6,"h_max_m":27.4,"cf":1.004,"method":"Robust linear regression (rlm, Tukey bisquare) of ln(response) on ln predictors"},"evidence":[{"field":"expression","quote":"M1 ln(v) = ln(β0) + β1 ln(d) + ε ... -8.907 2.385","locator":"Table 1 and Table 4"},{"field":"fit.n_trees","quote":"A total of 193 sampled trees from seven dominant tree species were used to develop the equations.","locator":"Abstract"},{"field":"fit.dbh","quote":"The diameter, total height, and wood density ranged between 6.2 and 85.0 cm, 5.6 and 27.4 m","locator":"Section 3.1"},{"field":"fit.cf","quote":"CF 1.004","locator":"Supplementary Table S4, p. 293"}],"check":[{"inputs":{"D":20},"expected":0.172357,"origin":"computed","note":"hand-computed from the published form; CF 1.004 applied"},{"inputs":{"D":50},"expected":1.532907,"origin":"computed","note":"hand-computed from the published form; CF 1.004 applied"}],"verification":"original_read","checked_at":"2026-11-02","notes":"cf is left out. Stem volume from Smalian sections of felled trees, over bark, excluding branches and leaves. Range in fit is for the 194 sampled trees (Table 3, Section 3.1). Back-transform CF 1.004 from Table S4 applied in expression."},{"id":"teshome-2022-vol-m2","source":"teshome-2022","name":"Stem volume from d2h (M2, best model)","output":{"quantity":"stem_volume"},"expression":"1.001 * (exp(-9.909 + 0.954 * ln(D^2 * H)))","published":{"expression":"exp(-9.909 + 0.954 * ln(d^2 * h))","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"m3"},"taxon":{"level":"mixed","name":"Seven dominant species of Chilimo forest (Juniperus procera, Podocarpus falcatus, Olea africana, Allophylus abyssinicus, Olinia rochetiana, Rhus glutinosa, Scolopia theifolia)","group":"mixed"},"region":{"scope":"site","countries":["ET"],"place":"Chilimo dry Afromontane forest, central Ethiopia","biomes":["montane"]},"stand":"natural","fit":{"n_trees":193,"dbh_min_cm":6.2,"dbh_max_cm":85,"h_min_m":5.6,"h_max_m":27.4,"cf":1.001,"method":"Robust linear regression (rlm, Tukey bisquare) of ln(response) on ln predictors"},"evidence":[{"field":"expression","quote":"ln(v) = -9.909 + 0.954 * ln(d^2 h)","locator":"Abstract"},{"field":"coefficients","quote":"M2 -9.909 0.954","locator":"Table 4"},{"field":"fit.n_trees","quote":"A total of 193 sampled trees from seven dominant tree species were used to develop the equations.","locator":"Abstract"},{"field":"fit.dbh","quote":"The diameter, total height, and wood density ranged between 6.2 and 85.0 cm, 5.6 and 27.4 m, and 0.52 and 0.82 g cm-3","locator":"Section 3.1"},{"field":"fit.cf","quote":"CF 1.001","locator":"Supplementary Table S4, p. 293"}],"check":[{"inputs":{"D":20,"H":12},"expected":0.161776,"origin":"computed","note":"hand-computed from the published form; CF 1.001 applied"},{"inputs":{"D":50,"H":20},"expected":1.512961,"origin":"computed","note":"hand-computed from the published form; CF 1.001 applied"}],"verification":"original_read","checked_at":"2026-11-02","notes":"cf is left out. Stem volume from Smalian sections of felled trees, over bark, excluding branches and leaves. Range in fit is for the 194 sampled trees (Table 3, Section 3.1). Back-transform CF 1.001 from Table S4 applied in expression."},{"id":"teshome-2022-vol-m3","source":"teshome-2022","name":"Stem volume from DBH and height (M3)","output":{"quantity":"stem_volume"},"expression":"1.001 * (exp(-9.883 + 0.962 * ln(D^2) + 0.925 * ln(H)))","published":{"expression":"exp(-9.883 + 0.962 * ln(d^2) + 0.925 * ln(h))","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"m3"},"taxon":{"level":"mixed","name":"Seven dominant species of Chilimo forest (Juniperus procera, Podocarpus falcatus, Olea africana, Allophylus abyssinicus, Olinia rochetiana, Rhus glutinosa, Scolopia theifolia)","group":"mixed"},"region":{"scope":"site","countries":["ET"],"place":"Chilimo dry Afromontane forest, central Ethiopia","biomes":["montane"]},"stand":"natural","fit":{"n_trees":193,"dbh_min_cm":6.2,"dbh_max_cm":85,"h_min_m":5.6,"h_max_m":27.4,"cf":1.001,"method":"Robust linear regression (rlm, Tukey bisquare) of ln(response) on ln predictors"},"evidence":[{"field":"expression","quote":"M3 ln(v) = ln(β0) + β1 ln(d^2) + β2 ln(h) + ε ... -9.883 0.962 0.925","locator":"Table 1 and Table 4"},{"field":"fit.n_trees","quote":"A total of 193 sampled trees from seven dominant tree species were used to develop the equations.","locator":"Abstract"},{"field":"fit.dbh","quote":"The diameter, total height, and wood density ranged between 6.2 and 85.0 cm, 5.6 and 27.4 m","locator":"Section 3.1"},{"field":"fit.cf","quote":"CF 1.001","locator":"Supplementary Table S4, p. 293"}],"check":[{"inputs":{"D":20,"H":12},"expected":0.162079,"origin":"computed","note":"hand-computed from the published form; CF 1.001 applied"},{"inputs":{"D":50,"H":20},"expected":1.515554,"origin":"computed","note":"hand-computed from the published form; CF 1.001 applied"}],"verification":"original_read","checked_at":"2026-11-02","notes":"cf is left out. Stem volume from Smalian sections of felled trees, over bark, excluding branches and leaves. Range in fit is for the 194 sampled trees (Table 3, Section 3.1). Back-transform CF 1.001 from Table S4 applied in expression."},{"id":"tetemke-2019-m1-dbh","source":"tetemke-2019","name":"Desa'a multispecies AGB from DBH (M1)","output":{"quantity":"agb"},"expression":"0.298 * D^2.034","published":{"expression":"0.298 * DBH^2.034","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"10 dominant species of Desa'a forest","group":"mixed"},"region":{"scope":"site","countries":["ET"],"place":"Desa'a dry Afromontane forest, Tigray","biomes":["montane","dryland"]},"stand":"natural","fit":{"n_trees":86,"dbh_min_cm":2.9,"dbh_max_cm":45.2,"method":"Power function fitted on ln-transformed data"},"evidence":[{"field":"expression","quote":"M1 AGB = a × DBHb 0.298 2.034 0.935 74.6 4.4 64.2","locator":"Table 3 (a, b, adj-R2, rRMSE, rBias, AIC)"},{"field":"fit.dbh_min_cm","quote":"All 86 14.8 4.9–51.0 12.8 2.9–45.2","locator":"Table 1 (n, DSH mean and range, DBH mean and range)"}],"check":[{"inputs":{"D":10},"expected":32.227,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":25},"expected":207.79,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Recommended by the authors for simplicity (DBH only), with M9 for stump diameter. Adjusted R2 0.935. The fits were done on ln-transformed data and the paper says predictions were back-transformed with a correction factor (CF from RSE) for its error statistics, but it does not print the CF or say whether the tabulated a already includes it; no cf is entered. Adjusted R2 is given in the notes, not fit.r2, because it is adjusted."},{"id":"tetemke-2019-m17-juniperus-dbh","source":"tetemke-2019","name":"Juniperus procera AGB from DBH (M17)","output":{"quantity":"agb"},"expression":"0.161 * D^2.199","published":{"expression":"0.161 * DBH^2.199","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Juniperus procera","family":"Cupressaceae","group":"conifer"},"region":{"scope":"site","countries":["ET"],"place":"Desa'a dry Afromontane forest, Tigray","biomes":["montane","dryland"]},"stand":"natural","fit":{"n_trees":23,"dbh_min_cm":4.2,"dbh_max_cm":45.2,"method":"Power function fitted on ln-transformed data"},"evidence":[{"field":"expression","quote":"M17 Juniperus procera 23 AGB = a × DBHb 0.161 2.199 0.966 74.1 −10.7 5.6","locator":"Table 4 (a, b, adj-R2, rRMSE, rBias, AIC)"},{"field":"fit.dbh_min_cm","quote":"Juniperus procera 23 21.2 5.2–51.0 18.1 4.2–45.2","locator":"Table 1 (n, DSH mean and range, DBH mean and range)"}],"check":[{"inputs":{"D":10},"expected":25.458,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":25},"expected":190.94,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Best species-specific model for Juniperus procera with a single diameter predictor. Adjusted R2 0.966. The fits were done on ln-transformed data and the paper says predictions were back-transformed with a correction factor (CF from RSE) for its error statistics, but it does not print the CF or say whether the tabulated a already includes it; no cf is entered. Adjusted R2 is given in the notes, not fit.r2, because it is adjusted."},{"id":"tetemke-2019-m18-juniperus-dsh","source":"tetemke-2019","name":"Juniperus procera AGB from stump diameter DSH (M18)","output":{"quantity":"agb"},"expression":"0.095 * D30^2.25","published":{"expression":"0.095 * DSH^2.25","units":{"DSH":"cm"},"variables":{"DSH":"D30"},"output_unit":"kg"},"taxon":{"level":"species","name":"Juniperus procera","family":"Cupressaceae","group":"conifer"},"region":{"scope":"site","countries":["ET"],"place":"Desa'a dry Afromontane forest, Tigray","biomes":["montane","dryland"]},"stand":"natural","fit":{"n_trees":23,"method":"Power function fitted on ln-transformed data"},"evidence":[{"field":"expression","quote":"M18 Juniperus procera 23 AGB = a × DSHb 0.095 2.250 0.982 37.2 −5.6 −8.8","locator":"Table 4 (a, b, adj-R2, rRMSE, rBias, AIC)"}],"check":[{"inputs":{"D30":10},"expected":16.894,"origin":"computed","note":"computed from the published form"},{"inputs":{"D30":25},"expected":132.77,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"DSH at 0.3 m mapped to D30. Best species-specific model for Juniperus procera from stump diameter. Adjusted R2 0.982. The fits were done on ln-transformed data and the paper says predictions were back-transformed with a correction factor (CF from RSE) for its error statistics, but it does not print the CF or say whether the tabulated a already includes it; no cf is entered. Adjusted R2 is given in the notes, not fit.r2, because it is adjusted."},{"id":"tetemke-2019-m19-olea-dbh","source":"tetemke-2019","name":"Olea europaea AGB from DBH (M19)","output":{"quantity":"agb"},"expression":"0.173 * D^2.25","published":{"expression":"0.173 * DBH^2.25","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Olea europaea subsp. cuspidata","family":"Oleaceae","group":"broadleaf"},"region":{"scope":"site","countries":["ET"],"place":"Desa'a dry Afromontane forest, Tigray","biomes":["montane","dryland"]},"stand":"natural","fit":{"n_trees":16,"dbh_min_cm":4.6,"dbh_max_cm":41.2,"method":"Power function fitted on ln-transformed data"},"evidence":[{"field":"expression","quote":"M19 Olea europaea 16 AGB = a × DBHb 0.173 2.250 0.968 43.7 −11.8 8.6","locator":"Table 4 (a, b, adj-R2, rRMSE, rBias, AIC)"},{"field":"fit.dbh_min_cm","quote":"Olea europaea L. subsp. Cuspidata (Wall. ex DC.) Ciffieri 16 21.6 5.1–47.3 19.3 4.6–41.2","locator":"Table 1 (n, DSH mean and range, DBH mean and range)"}],"check":[{"inputs":{"D":10},"expected":30.764,"origin":"computed","note":"computed from the published form"},{"inputs":{"D":25},"expected":241.77,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Best species-specific model for Olea europaea with a single diameter predictor. Adjusted R2 0.968. The fits were done on ln-transformed data and the paper says predictions were back-transformed with a correction factor (CF from RSE) for its error statistics, but it does not print the CF or say whether the tabulated a already includes it; no cf is entered. Adjusted R2 is given in the notes, not fit.r2, because it is adjusted."},{"id":"tetemke-2019-m20-olea-dsh","source":"tetemke-2019","name":"Olea europaea AGB from stump diameter DSH (M20)","output":{"quantity":"agb"},"expression":"0.125 * D30^2.279","published":{"expression":"0.125 * DSH^2.279","units":{"DSH":"cm"},"variables":{"DSH":"D30"},"output_unit":"kg"},"taxon":{"level":"species","name":"Olea europaea subsp. cuspidata","family":"Oleaceae","group":"broadleaf"},"region":{"scope":"site","countries":["ET"],"place":"Desa'a dry Afromontane forest, Tigray","biomes":["montane","dryland"]},"stand":"natural","fit":{"n_trees":16,"method":"Power function fitted on ln-transformed data"},"evidence":[{"field":"expression","quote":"M20 Olea europaea 16 AGB = a × DSHb 0.125 2.279 0.948 44.7 3.1 16.3","locator":"Table 4 (a, b, adj-R2, rRMSE, rBias, AIC)"}],"check":[{"inputs":{"D30":10},"expected":23.763,"origin":"computed","note":"computed from the published form"},{"inputs":{"D30":25},"expected":191.79,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"DSH at 0.3 m mapped to D30. Best species-specific model for Olea europaea from stump diameter. Adjusted R2 0.948. The fits were done on ln-transformed data and the paper says predictions were back-transformed with a correction factor (CF from RSE) for its error statistics, but it does not print the CF or say whether the tabulated a already includes it; no cf is entered. Adjusted R2 is given in the notes, not fit.r2, because it is adjusted."},{"id":"tetemke-2019-m9-dsh","source":"tetemke-2019","name":"Desa'a multispecies AGB from stump diameter DSH (M9)","output":{"quantity":"agb"},"expression":"0.17 * D30^2.128","published":{"expression":"0.17 * DSH^2.128","units":{"DSH":"cm"},"variables":{"DSH":"D30"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"10 dominant species of Desa'a forest","group":"mixed"},"region":{"scope":"site","countries":["ET"],"place":"Desa'a dry Afromontane forest, Tigray","biomes":["montane","dryland"]},"stand":"natural","fit":{"n_trees":86,"method":"Power function fitted on ln-transformed data"},"evidence":[{"field":"expression","quote":"M9 AGB = a × DSHb 0.170 2.128 0.941 71.2 2.4 55.9","locator":"Table 3 (a, b, adj-R2, rRMSE, rBias, AIC)"}],"check":[{"inputs":{"D30":10},"expected":22.827,"origin":"computed","note":"computed from the published form"},{"inputs":{"D30":25},"expected":160.42,"origin":"computed","note":"computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"DSH is the diameter at stump height, 0.3 m above ground, mapped to D30. Recommended by the authors for simplicity with M1. Multi-stem trees combine stems as in the paper (Eq. 1). Adjusted R2 0.941. The fits were done on ln-transformed data and the paper says predictions were back-transformed with a correction factor (CF from RSE) for its error statistics, but it does not print the CF or say whether the tabulated a already includes it; no cf is entered. Adjusted R2 is given in the notes, not fit.r2, because it is adjusted."},{"id":"thapa-2013-h-power","source":"thapa-2013","name":"Chir pine height from D (M1, power)","output":{"quantity":"height"},"expression":"exp(-0.276) * D^0.925","published":{"expression":"exp(-0.276) * DBH^0.925","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m"},"taxon":{"level":"species","name":"Pinus roxburghii","family":"Pinaceae","group":"conifer"},"region":{"scope":"site","countries":["NP"],"place":"Galeshwor Thulo Salleri and Banchare Dil community forests, Ghatan VDC, Myagdi district, west Nepal","biomes":["subtropical","montane"]},"stand":"natural","fit":{"n_trees":180,"dbh_min_cm":5.57,"dbh_max_cm":61.94,"h_min_m":2.5,"h_max_m":35,"r2":0.91,"method":"nonlinear least squares, H = exp(b0) D^b1 (R2 adj. reported)"},"evidence":[{"field":"expression","quote":"M1 i.e. H = e(-0.276) D0.925 is considered best fitted model","locator":"Results and Discussion, p. 150"},{"field":"fit.n_trees","quote":"Total height and diameter at breast height of 180 trees were measured","locator":"Abstract"},{"field":"fit.r2","quote":"R2 adj.=0.910","locator":"Abstract; Table 3, M1"},{"field":"fit.dbh_min_cm","quote":"Minimum 5.57 ... Maximum 61.94","locator":"Table 1, Diameter (cm) rows (smallest minimum and largest maximum across the six diameter classes)"}],"check":[{"inputs":{"D":10},"expected":6.3846,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25},"expected":14.9015,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":50},"expected":28.2932,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"r2 is the adjusted R2 as printed. RMSE 1.221 (Table 3). Models M2-M5 are printed in Table 3 with parameters rounded (several show -0.000), so only the selected M1 is recorded. 30 trees per diameter class, 6 classes."},{"id":"tipu-2021-agb-d2h","source":"tipu-2021","name":"C. tabularis AGB from D2H (Model 7, bias-corrected)","output":{"quantity":"agb"},"expression":"exp(-3.571 + 1.006 * ln(D^2 * H)) * 1.029","published":{"expression":"exp(-3.571 + 1.006 * ln(DBH^2 * H)) * 1.029","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Chukrasia tabularis","family":"Meliaceae","group":"broadleaf"},"region":{"scope":"site","countries":["BD"],"place":"Rema-Kalenga Wildlife Sanctuary, Sylhet region, Bangladesh","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":98,"dbh_min_cm":9,"dbh_max_cm":52,"h_min_m":9,"h_max_m":37,"r2":0.96,"rse":0.243,"cf":1.029,"method":"log-log regression (natural log) with Sprugel correction factor; semi-destructive"},"evidence":[{"field":"expression","quote":"Ln (TAGB) = -3.571 + 1.006 × Ln (D2 × H)","locator":"Results, Allometric models for total aboveground biomass (Model 7, Table 4), p. 208"},{"field":"fit.cf","quote":"7 -3.571 1.006 ... 1.029","locator":"Table 4, Model 7 row (CF column 1.029)"},{"field":"fit.n_trees","quote":"In the first event, 98 individuals were chosen to derive the allometric model, covering diameter at breast height and total height range of 9–52 cm and 9–37 m respectively.","locator":"Sampling and measurement of sample trees, p. 204"},{"field":"fit.dbh_min_cm","quote":"diameter at breast height (9–52 cm) and total height (9–37 m)","locator":"Discussion, p. 208"}],"check":[{"inputs":{"D":15,"H":15},"expected":102.5636,"origin":"computed","note":"computed from the published form (exp of the printed log-log equation times the printed CF 1.029)"},{"inputs":{"D":30,"H":22},"expected":608.1279,"origin":"computed","note":"computed from the published form (exp of the printed log-log equation times the printed CF 1.029)"},{"inputs":{"D":45,"H":30},"expected":1878.4401,"origin":"computed","note":"computed from the published form (exp of the printed log-log equation times the printed CF 1.029)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Adjusted R2 0.960 and RSE 0.243 as printed for Model 7 in Table 4 (RSE is on the log scale). The paper also prints the final back-transformed form as TAGB = 0.028953 × (D2 × H)^1.006 and a bias-corrected 0.029821 × (D2 × H)^1.006; these two coefficients are not consistent with exp(-3.571) = 0.02813 (0.028953 is close to exp(-3.571) × 1.029, and 0.029821 looks like the correction applied twice). This record uses the printed log-log equation with the printed CF 1.029 (coefficient 0.02894); the paper's 0.029821 form gives about 3% more biomass. Sample was 98 trees for model development (n_trees) plus 22 for validation (120 in total), per the Sampling section, p. 204."},{"id":"tipu-2021-h-inverse","source":"tipu-2021","name":"C. tabularis height from D (1/H = a + b/D, Model 3)","output":{"quantity":"height"},"expression":"1 / (0.024 + 0.643 / D)","published":{"expression":"1 / (0.024 + 0.643 * (1 / DBH))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m"},"taxon":{"level":"species","name":"Chukrasia tabularis","family":"Meliaceae","group":"broadleaf"},"region":{"scope":"site","countries":["BD"],"place":"Rema-Kalenga Wildlife Sanctuary, Sylhet region, Bangladesh","biomes":["tropical"]},"stand":"natural","fit":{"dbh_min_cm":9,"dbh_max_cm":52,"h_min_m":9,"h_max_m":37,"r2":0.617,"method":"linear regression of 1/H on 1/D (adjusted R2 reported)"},"evidence":[{"field":"expression","quote":"1/H = a + b (1/D) ... 0.024 ... 0.643","locator":"Table 2, Model 3"},{"field":"expression","quote":"The linear model (1/H = 0.024 + 0.643 × (1/D)) appeared as best-fit model for total height and diameter at breast height relationship","locator":"Results, p. 207"}],"check":[{"inputs":{"D":10},"expected":11.325,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25},"expected":20.1126,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":40},"expected":24.9532,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"r2 here is the adjusted R2 (0.617) as printed in Table 2; RSE printed as 0.011 (on 1/H scale), left out. Range from the sampling description (98 model-development trees, 9–52 cm and 9–37 m)."},{"id":"tiralla-2013-h-aleurites","source":"tiralla-2013","name":"Aleurites moluccana height from D (linear, Table 2)","output":{"quantity":"height"},"expression":"3.6784 + 0.3101 * D","published":{"expression":"3.6784 + 0.3101 * DBH","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m"},"taxon":{"level":"species","name":"Aleurites moluccana","family":"Euphorbiaceae","group":"broadleaf"},"region":{"scope":"site","countries":["ID"],"place":"Bulili, Kecamatan Palolo, Central Sulawesi (shade trees in cacao agroforestry)","biomes":["tropical"]},"stand":"agroforestry","fit":{"n_trees":23,"dbh_min_cm":14.1,"dbh_max_cm":51.6,"h_min_m":7.9,"h_max_m":25.2,"r2":0.643,"method":"linear regression"},"evidence":[{"field":"expression","quote":"Aleurites moluccana: H = a + b x DBH; a 3.6784, b 0.3101, r2 0.643","locator":"Table 2"},{"field":"fit.n_trees","quote":"23 A. moluccana trees","locator":"Field measurements"},{"field":"fit.dbh_max_cm","quote":"dbh (cm) 14.1/51.6; Height (m) 7.9/25.2","locator":"Table 1, range of application"}],"check":[{"inputs":{"D":20},"expected":9.8804,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":40},"expected":16.0824,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Shade-tree structural study; only height from DBH is a tree-level size equation here (other relationships are crown or trunk height)."},{"id":"tiralla-2013-h-gliricidia","source":"tiralla-2013","name":"Gliricidia sepium height from D (non-rectangular hyperbola, Table 3)","output":{"quantity":"height"},"expression":"0.5 * (1.0901 * D + 10.941 - sqrt((1.0901 * D + 11.0)^2 - 4 * 1.0901 * D * 10.941))","published":{"expression":"0.5 * (1.0901 * DBH + 10.941 - sqrt((1.0901 * DBH + 11.0)^2 - 4 * 1.0901 * DBH * 10.941))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m"},"taxon":{"level":"species","name":"Gliricidia sepium","family":"Fabaceae","group":"broadleaf"},"region":{"scope":"site","countries":["ID"],"place":"Bulili, Kecamatan Palolo, Central Sulawesi (shade trees in cacao agroforestry)","biomes":["tropical"]},"stand":"agroforestry","fit":{"n_trees":28,"dbh_min_cm":7,"dbh_max_cm":44.1,"h_min_m":7.3,"h_max_m":12.9,"method":"non-rectangular hyperbola (Thornley 1976), maximum height fixed at 11 m"},"evidence":[{"field":"expression","quote":"y = 0.5 x (a x x + b - sqrt((a x x + c)^2 - 4 x a x x x b)); H on DBH: a 1.0901, b 10.941, c 11.0, r 0.722","locator":"Table 3"},{"field":"fit.n_trees","quote":"28 G. sepium trees","locator":"Field measurements"}],"check":[{"inputs":{"D":10},"expected":10.1175,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":30},"expected":10.882,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Formula typeset exactly as in the Table 3 caption. Authors state the best fit was obtained with maximum height fixed at 11 m (c = 11.0). Only a multiple correlation coefficient (r = 0.722) is given, not R2, so none is recorded."},{"id":"tretyakov-2022-branches","source":"tretyakov-2022","name":"Grey alder branches dry mass from DBH (general equation)","output":{"quantity":"branch_biomass"},"expression":"0.0131 * D^2.3413","published":{"expression":"0.0131 * D^2.3413","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Alnus incana","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["RU"],"place":"Arkhangelsk forestry, North-taiga region, Arkhangelsk oblast","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":21,"dbh_min_cm":4,"dbh_max_cm":17,"r2":0.9074,"method":"power regression on 21 model trees pooled over 4 stands"},"evidence":[{"field":"expression","quote":"M_branches a.d. = 0.0131 · D^2.3413, R² = 0.9074","locator":"Eq. 20, p. 73"},{"field":"fit.n_trees","quote":"A total of 21 model trees were studied","locator":"Abstract"},{"field":"fit.dbh","quote":"которые работают при таксационных диаметрах от 4 до 17 см","locator":"Results, p. 68"}],"check":[{"inputs":{"D":4},"expected":0.336,"origin":"published","note":"Table 5, p. 73"},{"inputs":{"D":10},"expected":2.875,"origin":"published","note":"Table 5, p. 73"},{"inputs":{"D":16},"expected":8.639,"origin":"published","note":"Table 5, p. 73"}],"verification":"original_read","checked_at":"2026-11-02","notes":"General equation fitted on all 21 model trees from four grey alder stands. D is trunk diameter at 1.3 m (cm); output is absolutely dry mass in kg. The last digit of the exponent is clipped in the printed Eq. 20 and 21 (2.3413 and 2.0522 read from the PDF); Table 5 values reproduce within 1% across D = 4 to 16 cm. Per-stand equations in Table 1 are not included. Trunk bark (Eq. 19: 0.0144*D^2.1832, R2 0.7892) has no separate output quantity and is not included."},{"id":"tretyakov-2022-foliage","source":"tretyakov-2022","name":"Grey alder foliage dry mass from DBH (general equation)","output":{"quantity":"foliage_biomass"},"expression":"0.0041 * D^2.0522","published":{"expression":"0.0041 * D^2.0522","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Alnus incana","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["RU"],"place":"Arkhangelsk forestry, North-taiga region, Arkhangelsk oblast","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":21,"dbh_min_cm":4,"dbh_max_cm":17,"r2":0.8214,"method":"power regression on 21 model trees pooled over 4 stands"},"evidence":[{"field":"expression","quote":"M_foliage a.d. = 0.0041 · D^2.0522, R² = 0.8214","locator":"Eq. 21, p. 73"},{"field":"fit.n_trees","quote":"A total of 21 model trees were studied","locator":"Abstract"},{"field":"fit.dbh","quote":"которые работают при таксационных диаметрах от 4 до 17 см","locator":"Results, p. 68"}],"check":[{"inputs":{"D":4},"expected":0.071,"origin":"published","note":"Table 5, p. 73"},{"inputs":{"D":10},"expected":0.462,"origin":"published","note":"Table 5, p. 73"},{"inputs":{"D":16},"expected":1.213,"origin":"published","note":"Table 5, p. 73"}],"verification":"original_read","checked_at":"2026-11-02","notes":"General equation fitted on all 21 model trees from four grey alder stands. D is trunk diameter at 1.3 m (cm); output is absolutely dry mass in kg. The last digit of the exponent is clipped in the printed Eq. 20 and 21 (2.3413 and 2.0522 read from the PDF); Table 5 values reproduce within 1% across D = 4 to 16 cm. Per-stand equations in Table 1 are not included. Trunk bark (Eq. 19: 0.0144*D^2.1832, R2 0.7892) has no separate output quantity and is not included."},{"id":"tretyakov-2022-wood","source":"tretyakov-2022","name":"Grey alder trunk wood (bark excluded) dry mass from DBH (general equation)","output":{"quantity":"stem_biomass"},"expression":"0.0485 * D^2.5138","published":{"expression":"0.0485 * D^2.5138","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Alnus incana","family":"Betulaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["RU"],"place":"Arkhangelsk forestry, North-taiga region, Arkhangelsk oblast","biomes":["boreal"]},"stand":"natural","fit":{"n_trees":21,"dbh_min_cm":4,"dbh_max_cm":17,"r2":0.9196,"method":"power regression on 21 model trees pooled over 4 stands"},"evidence":[{"field":"expression","quote":"M_wood a.d. = 0.0485 · D^2.5138, R² = 0.9196","locator":"Eq. 18, p. 68"},{"field":"fit.n_trees","quote":"A total of 21 model trees were studied","locator":"Abstract"},{"field":"fit.dbh","quote":"которые работают при таксационных диаметрах от 4 до 17 см","locator":"Results, p. 68"}],"check":[{"inputs":{"D":4},"expected":1.582,"origin":"published","note":"Table 5, p. 73"},{"inputs":{"D":10},"expected":15.832,"origin":"published","note":"Table 5, p. 73"},{"inputs":{"D":16},"expected":51.601,"origin":"published","note":"Table 5, p. 73"}],"verification":"original_read","checked_at":"2026-11-02","notes":"General equation fitted on all 21 model trees from four grey alder stands. D is trunk diameter at 1.3 m (cm); output is absolutely dry mass in kg. The last digit of the exponent is clipped in the printed Eq. 20 and 21 (2.3413 and 2.0522 read from the PDF); Table 5 values reproduce within 1% across D = 4 to 16 cm. Per-stand equations in Table 1 are not included. Trunk bark (Eq. 19: 0.0144*D^2.1832, R2 0.7892) has no separate output quantity and is not included. Wood fraction excludes bark."},{"id":"tungalag-2020-agb-d","source":"tungalag-2020","name":"Scots pine AGB biomass, ln-ln OLS (D only)","output":{"quantity":"agb"},"expression":"1.019 * exp(-2.71 + 2.476 * ln(D))","published":{"expression":"1.019 * exp(-2.71 + 2.476 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus sylvestris","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["MN"],"place":"Northeastern Khangai and western Khentii forest regions, northern Mongolia","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":35,"dbh_min_cm":4.7,"dbh_max_cm":55,"h_min_m":4.6,"h_max_m":23,"cf":1.019,"method":"ordinary least squares on ln-transformed data (type N), with correction factor CF = exp(RMSE²/2)"},"evidence":[{"field":"expression","quote":"lnŶ=lna+blnD; N: lna = -2.71, b = 2.476, CF = 1.019","locator":"Table 4, AGB section, Eq. 4, type N, p. 17"},{"field":"fit.n_trees","quote":"A total of 35 sample trees were destructively sampled","locator":"Materials and Methods, Data collection, p. 14"}],"check":[{"inputs":{"D":10},"expected":20.2879,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25},"expected":196.1262,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":45},"expected":840.6018,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Ordinary least squares (type N) rows of Table 4 with the printed CF applied; the weighted (type W) rows are not included because their printed RMSE/CF are on a weighted scale. The paper does not say whether the printed lna values for type N are rounded further. Table 4 decimal commas read as decimal points. The abstract names the D and H form (Eq. 6) as the best-fitting; the D-only form is also given. Total AGB = stem + branches + needles; the paper also describes a one-step proportional weighting for additivity, not applied here. Biomass in kg (Eq. 1 text)."},{"id":"tungalag-2020-agb-dh","source":"tungalag-2020","name":"Scots pine AGB biomass, ln-ln OLS (D and H)","output":{"quantity":"agb"},"expression":"1.017 * exp(-3.136 + 2.2 * ln(D) + 0.469 * ln(H))","published":{"expression":"1.017 * exp(-3.136 + 2.2 * ln(D) + 0.469 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus sylvestris","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["MN"],"place":"Northeastern Khangai and western Khentii forest regions, northern Mongolia","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":35,"dbh_min_cm":4.7,"dbh_max_cm":55,"h_min_m":4.6,"h_max_m":23,"cf":1.017,"method":"ordinary least squares on ln-transformed data (type N), with correction factor CF = exp(RMSE²/2)"},"evidence":[{"field":"expression","quote":"lnŶ=lna+b x lnD+c x lnH; N: lna = -3.136, b = 2.2, c = 0.469, CF = 1.017","locator":"Table 4, AGB section, Eq. 6, type N, p. 17"},{"field":"fit.n_trees","quote":"A total of 35 sample trees were destructively sampled","locator":"Materials and Methods, Data collection, p. 14"}],"check":[{"inputs":{"D":10,"H":8},"expected":18.5747,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25,"H":16},"expected":193.0073,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":45,"H":21},"expected":799.0277,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Ordinary least squares (type N) rows of Table 4 with the printed CF applied; the weighted (type W) rows are not included because their printed RMSE/CF are on a weighted scale. The paper does not say whether the printed lna values for type N are rounded further. Table 4 decimal commas read as decimal points. The abstract names the D and H form (Eq. 6) as the best-fitting; the D-only form is also given. Total AGB = stem + branches + needles; the paper also describes a one-step proportional weighting for additivity, not applied here. Biomass in kg (Eq. 1 text)."},{"id":"tungalag-2020-branch-d","source":"tungalag-2020","name":"Scots pine branch biomass, ln-ln OLS (D only)","output":{"quantity":"branch_biomass"},"expression":"1.181 * exp(-5.918 + 2.882 * ln(D))","published":{"expression":"1.181 * exp(-5.918 + 2.882 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus sylvestris","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["MN"],"place":"Northeastern Khangai and western Khentii forest regions, northern Mongolia","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":35,"dbh_min_cm":4.7,"dbh_max_cm":55,"h_min_m":4.6,"h_max_m":23,"cf":1.181,"method":"ordinary least squares on ln-transformed data (type N), with correction factor CF = exp(RMSE²/2)"},"evidence":[{"field":"expression","quote":"lnŶ=lna+blnD; N: lna = -5.918, b = 2.882, CF = 1.181","locator":"Table 4, branch section, Eq. 4, type N, p. 17"},{"field":"fit.n_trees","quote":"A total of 35 sample trees were destructively sampled","locator":"Materials and Methods, Data collection, p. 14"}],"check":[{"inputs":{"D":10},"expected":2.4216,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25},"expected":33.9593,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":45},"expected":184.7794,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Ordinary least squares (type N) rows of Table 4 with the printed CF applied; the weighted (type W) rows are not included because their printed RMSE/CF are on a weighted scale. The paper does not say whether the printed lna values for type N are rounded further. Table 4 decimal commas read as decimal points. The abstract names the D and H form (Eq. 6) as the best-fitting; the D-only form is also given. Total AGB = stem + branches + needles; the paper also describes a one-step proportional weighting for additivity, not applied here. Biomass in kg (Eq. 1 text)."},{"id":"tungalag-2020-branch-dh","source":"tungalag-2020","name":"Scots pine branch biomass, ln-ln OLS (D and H)","output":{"quantity":"branch_biomass"},"expression":"1.139 * exp(-4.278 + 3.945 * ln(D) - 1.806 * ln(H))","published":{"expression":"1.139 * exp(-4.278 + 3.945 * ln(D) - 1.806 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus sylvestris","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["MN"],"place":"Northeastern Khangai and western Khentii forest regions, northern Mongolia","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":35,"dbh_min_cm":4.7,"dbh_max_cm":55,"h_min_m":4.6,"h_max_m":23,"cf":1.139,"method":"ordinary least squares on ln-transformed data (type N), with correction factor CF = exp(RMSE²/2)"},"evidence":[{"field":"expression","quote":"lnŶ=lna+b x lnD+c x lnH; N: lna = -4.278, b = 3.945, c = -1.806, CF = 1.139","locator":"Table 4, branch section, Eq. 6, type N, p. 17"},{"field":"fit.n_trees","quote":"A total of 35 sample trees were destructively sampled","locator":"Materials and Methods, Data collection, p. 14"}],"check":[{"inputs":{"D":10,"H":8},"expected":3.2556,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25,"H":16},"expected":34.5816,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":45,"H":21},"expected":215.0836,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Ordinary least squares (type N) rows of Table 4 with the printed CF applied; the weighted (type W) rows are not included because their printed RMSE/CF are on a weighted scale. The paper does not say whether the printed lna values for type N are rounded further. Table 4 decimal commas read as decimal points. The abstract names the D and H form (Eq. 6) as the best-fitting; the D-only form is also given. Total AGB = stem + branches + needles; the paper also describes a one-step proportional weighting for additivity, not applied here. Biomass in kg (Eq. 1 text)."},{"id":"tungalag-2020-needle-d","source":"tungalag-2020","name":"Scots pine needle biomass, ln-ln OLS (D only)","output":{"quantity":"foliage_biomass"},"expression":"1.181 * exp(-4.232 + 2.07 * ln(D))","published":{"expression":"1.181 * exp(-4.232 + 2.07 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus sylvestris","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["MN"],"place":"Northeastern Khangai and western Khentii forest regions, northern Mongolia","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":35,"dbh_min_cm":4.7,"dbh_max_cm":55,"h_min_m":4.6,"h_max_m":23,"cf":1.181,"method":"ordinary least squares on ln-transformed data (type N), with correction factor CF = exp(RMSE²/2)"},"evidence":[{"field":"expression","quote":"lnŶ=lna+blnD; N: lna = -4.232, b = 2.07, CF = 1.181","locator":"Table 4, needle section, Eq. 4, type N, p. 17"},{"field":"fit.n_trees","quote":"A total of 35 sample trees were destructively sampled","locator":"Materials and Methods, Data collection, p. 14"}],"check":[{"inputs":{"D":10},"expected":2.0152,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25},"expected":13.4292,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":45},"expected":45.3383,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Ordinary least squares (type N) rows of Table 4 with the printed CF applied; the weighted (type W) rows are not included because their printed RMSE/CF are on a weighted scale. The paper does not say whether the printed lna values for type N are rounded further. Table 4 decimal commas read as decimal points. The abstract names the D and H form (Eq. 6) as the best-fitting; the D-only form is also given. Total AGB = stem + branches + needles; the paper also describes a one-step proportional weighting for additivity, not applied here. Biomass in kg (Eq. 1 text)."},{"id":"tungalag-2020-needle-dh","source":"tungalag-2020","name":"Scots pine needle biomass, ln-ln OLS (D and H)","output":{"quantity":"foliage_biomass"},"expression":"1.164 * exp(-2.786 + 3.006 * ln(D) - 1.593 * ln(H))","published":{"expression":"1.164 * exp(-2.786 + 3.006 * ln(D) - 1.593 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus sylvestris","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["MN"],"place":"Northeastern Khangai and western Khentii forest regions, northern Mongolia","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":35,"dbh_min_cm":4.7,"dbh_max_cm":55,"h_min_m":4.6,"h_max_m":23,"cf":1.164,"method":"ordinary least squares on ln-transformed data (type N), with correction factor CF = exp(RMSE²/2)"},"evidence":[{"field":"expression","quote":"lnŶ=lna+b x lnD+c x lnH; N: lna = -2.786, b = 3.006, c = -1.593, CF = 1.164","locator":"Table 4, needle section, Eq. 6, type N, p. 17"},{"field":"fit.n_trees","quote":"A total of 35 sample trees were destructively sampled","locator":"Materials and Methods, Data collection, p. 14"}],"check":[{"inputs":{"D":10,"H":8},"expected":2.6509,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25,"H":16},"expected":13.8055,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":45,"H":21},"expected":52.3926,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Ordinary least squares (type N) rows of Table 4 with the printed CF applied; the weighted (type W) rows are not included because their printed RMSE/CF are on a weighted scale. The paper does not say whether the printed lna values for type N are rounded further. Table 4 decimal commas read as decimal points. The abstract names the D and H form (Eq. 6) as the best-fitting; the D-only form is also given. Total AGB = stem + branches + needles; the paper also describes a one-step proportional weighting for additivity, not applied here. Biomass in kg (Eq. 1 text)."},{"id":"tungalag-2020-stem-d","source":"tungalag-2020","name":"Scots pine stem biomass, ln-ln OLS (D only)","output":{"quantity":"stem_biomass"},"expression":"1.03 * exp(-3.07 + 2.496 * ln(D))","published":{"expression":"1.03 * exp(-3.07 + 2.496 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus sylvestris","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["MN"],"place":"Northeastern Khangai and western Khentii forest regions, northern Mongolia","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":35,"dbh_min_cm":4.7,"dbh_max_cm":55,"h_min_m":4.6,"h_max_m":23,"cf":1.03,"method":"ordinary least squares on ln-transformed data (type N), with correction factor CF = exp(RMSE²/2)"},"evidence":[{"field":"expression","quote":"lnŶ=lna+blnD; N: lna = -3.07, b = 2.496, CF = 1.03","locator":"Table 4, stem section, Eq. 4, type N, p. 17"},{"field":"fit.n_trees","quote":"A total of 35 sample trees were destructively sampled","locator":"Materials and Methods, Data collection, p. 14"}],"check":[{"inputs":{"D":10},"expected":14.9814,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25},"expected":147.5066,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":45},"expected":639.693,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Ordinary least squares (type N) rows of Table 4 with the printed CF applied; the weighted (type W) rows are not included because their printed RMSE/CF are on a weighted scale. The paper does not say whether the printed lna values for type N are rounded further. Table 4 decimal commas read as decimal points. The abstract names the D and H form (Eq. 6) as the best-fitting; the D-only form is also given. Total AGB = stem + branches + needles; the paper also describes a one-step proportional weighting for additivity, not applied here. Biomass in kg (Eq. 1 text)."},{"id":"tungalag-2020-stem-dh","source":"tungalag-2020","name":"Scots pine stem biomass, ln-ln OLS (D and H)","output":{"quantity":"stem_biomass"},"expression":"1.009 * exp(-4.235 + 1.741 * ln(D) + 1.284 * ln(H))","published":{"expression":"1.009 * exp(-4.235 + 1.741 * ln(D) + 1.284 * ln(H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus sylvestris","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["MN"],"place":"Northeastern Khangai and western Khentii forest regions, northern Mongolia","biomes":["boreal","montane"]},"stand":"natural","fit":{"n_trees":35,"dbh_min_cm":4.7,"dbh_max_cm":55,"h_min_m":4.6,"h_max_m":23,"cf":1.009,"method":"ordinary least squares on ln-transformed data (type N), with correction factor CF = exp(RMSE²/2)"},"evidence":[{"field":"expression","quote":"lnŶ=lna+b x lnD+c x lnH; N: lna = -4.235, b = 1.741, c = 1.284, CF = 1.009","locator":"Table 4, stem section, Eq. 6, type N, p. 17"},{"field":"fit.n_trees","quote":"A total of 35 sample trees were destructively sampled","locator":"Materials and Methods, Data collection, p. 14"}],"check":[{"inputs":{"D":10,"H":8},"expected":11.6204,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25,"H":16},"expected":139.4947,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":45,"H":21},"expected":550.3343,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Ordinary least squares (type N) rows of Table 4 with the printed CF applied; the weighted (type W) rows are not included because their printed RMSE/CF are on a weighted scale. The paper does not say whether the printed lna values for type N are rounded further. Table 4 decimal commas read as decimal points. The abstract names the D and H form (Eq. 6) as the best-fitting; the D-only form is also given. Total AGB = stem + branches + needles; the paper also describes a one-step proportional weighting for additivity, not applied here. Biomass in kg (Eq. 1 text)."},{"id":"upadhyay-2024-h-cubic","source":"upadhyay-2024","name":"Chir pine height from D, cubic (M3)","output":{"quantity":"height"},"expression":"1.569 + 0.5791 * D - 0.0008634 * D^2 - 0.000009678 * D^3","published":{"expression":"1.569 + 0.5791 * DBH - 0.0008634 * DBH^2 - 0.000009678 * DBH^3","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m"},"taxon":{"level":"species","name":"Pinus roxburghii","family":"Pinaceae","group":"conifer"},"region":{"scope":"national","countries":["NP"],"place":"Nepal, Forest Resource Assessment 2018 plots","biomes":["subtropical","montane"]},"stand":"natural","fit":{"r2":0.72,"method":"polynomial (degree 3) regression; the quadratic and cubic terms were not significant (p>0.05)"},"evidence":[{"field":"expression","quote":"height=1.569+0.5791*dbh−0.0008634⋅*dbh2−0.000009678* dbh3","locator":"Table 4, M3"}],"check":[{"inputs":{"D":10},"expected":7.264,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25},"expected":15.3557,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":50},"expected":27.1557,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"r2 is the adjusted R2 as printed in Table 6 (RMSE 3.642). Fitted on the 80% training split of the FRA 2018 sample; the paper's n is ambiguous (610 'sample plots' vs 610 trees in Table 3), so n_trees and ranges are left out. Table 6 coefficient columns differ from Table 4; Table 4 (printed formulas, consistent with Table 3 class means) is used."},{"id":"upadhyay-2024-h-inverse","source":"upadhyay-2024","name":"Chir pine height from D, inverse (M5)","output":{"quantity":"height"},"expression":"27.261 - 227 / D","published":{"expression":"27.261 - 227 * (1 / DBH)","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m"},"taxon":{"level":"species","name":"Pinus roxburghii","family":"Pinaceae","group":"conifer"},"region":{"scope":"national","countries":["NP"],"place":"Nepal, Forest Resource Assessment 2018 plots","biomes":["subtropical","montane"]},"stand":"natural","fit":{"r2":0.511,"method":"inverse regression (lowest-ranked model in the paper)"},"evidence":[{"field":"expression","quote":"height= 27.261 + -227 * (1/dbh)","locator":"Table 4, M5"}],"check":[{"inputs":{"D":10},"expected":4.561,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25},"expected":18.181,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":50},"expected":22.721,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"r2 is the adjusted R2 as printed in Table 6 (RMSE 5.731). Fitted on the 80% training split of the FRA 2018 sample; the paper's n is ambiguous (610 'sample plots' vs 610 trees in Table 3), so n_trees and ranges are left out. Table 6 coefficient columns differ from Table 4; Table 4 (printed formulas, consistent with Table 3 class means) is used."},{"id":"upadhyay-2024-h-linear","source":"upadhyay-2024","name":"Chir pine height from D, linear (M1)","output":{"quantity":"height"},"expression":"0.466 * D + 3.623","published":{"expression":"0.466 * DBH + 3.623","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m"},"taxon":{"level":"species","name":"Pinus roxburghii","family":"Pinaceae","group":"conifer"},"region":{"scope":"national","countries":["NP"],"place":"Nepal, Forest Resource Assessment 2018 plots","biomes":["subtropical","montane"]},"stand":"natural","fit":{"r2":0.712,"method":"simple linear regression"},"evidence":[{"field":"expression","quote":"height = 0.466 *dbh + 3.623","locator":"Table 4, M1"}],"check":[{"inputs":{"D":10},"expected":8.283,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25},"expected":15.273,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":50},"expected":26.923,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"r2 is the adjusted R2 as printed in Table 6 (RMSE 3.718). Fitted on the 80% training split of the FRA 2018 sample; the paper's n is ambiguous (610 'sample plots' vs 610 trees in Table 3), so n_trees and ranges are left out. Table 6 coefficient columns differ from Table 4; Table 4 (printed formulas, consistent with Table 3 class means) is used."},{"id":"upadhyay-2024-h-quadratic","source":"upadhyay-2024","name":"Chir pine height from D, quadratic (M2)","output":{"quantity":"height"},"expression":"1.1052804 + 0.6252304 * D - 0.0021242 * D^2","published":{"expression":"1.1052804 + 0.6252304 * DBH - 0.0021242 * DBH^2","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m"},"taxon":{"level":"species","name":"Pinus roxburghii","family":"Pinaceae","group":"conifer"},"region":{"scope":"national","countries":["NP"],"place":"Nepal, Forest Resource Assessment 2018 plots","biomes":["subtropical","montane"]},"stand":"natural","fit":{"r2":0.72,"method":"polynomial (degree 2) regression"},"evidence":[{"field":"expression","quote":"height=1.1052804+0.6252304*dbh−0.0021242*dbh2","locator":"Table 4, M2"}],"check":[{"inputs":{"D":10},"expected":7.1452,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":25},"expected":15.4084,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":50},"expected":27.0563,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"r2 is the adjusted R2 as printed in Table 6 (RMSE 3.639). Fitted on the 80% training split of the FRA 2018 sample; the paper's n is ambiguous (610 'sample plots' vs 610 trees in Table 3), so n_trees and ranges are left out. Table 6 coefficient columns differ from Table 4; Table 4 (printed formulas, consistent with Table 3 class means) is used."},{"id":"vale-2002-agb-d30","source":"vale-2002","name":"Cerrado sensu stricto wood + bark dry mass from D30 (quadratic, Fig. 5)","output":{"quantity":"agb"},"expression":"26.501 - 7.0631 * D30 + 0.5169 * D30^2","published":{"expression":"26.501 - 7.0631 * x + 0.5169 * x^2","units":{"x":"cm"},"variables":{"x":"D30"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Cerrado sensu stricto woody species (47 species)","group":"mixed"},"region":{"scope":"site","countries":["BR"],"place":"Fazenda Água Limpa, Universidade de Brasília, Distrito Federal","biomes":["tropical"]},"stand":"natural","fit":{"r2":0.92,"method":"Quadratic regression y = b0 + b1x + b2x2 (SAEG); best of 12 equations tested"},"evidence":[{"field":"expression","quote":"y = 26,501 - 7,0631*x + 0,5169*x2","locator":"Figura 5, p. 124"},{"field":"fit.r2","quote":"R2 = 0,92","locator":"Figura 5, p. 124"},{"field":"input","quote":"em função do diâmetro a 30 cm de altura do solo","locator":"Resumo"},{"field":"output","quote":"Massa seca total (kg/árv.)","locator":"Figura 5, p. 124"}],"check":[{"inputs":{"D30":10},"expected":7.56,"origin":"computed","note":"computed from the printed Figure 5 equation"},{"inputs":{"D30":20},"expected":91.999,"origin":"computed","note":"computed from the printed Figure 5 equation"}],"verification":"original_read","checked_at":"2026-11-02","notes":"x is the stem diameter at 30 cm above ground (D30), not DBH. Total = wood plus bark of trunk and branches; branches under 3 cm basal diameter were removed before weighing, and the paper does not say how foliage was treated, so no exclusion is declared. The paper states 3 trees per diameter class in seven classes but not a total n, so n_trees and the fitted diameter range are left out."},{"id":"vargas-larreta-2017-a-bicolor-agb","source":"vargas-larreta-2017","name":"Arbutus bicolor total aboveground biomass","output":{"quantity":"agb"},"expression":"(0.06438 * D^1.66448 * H^0.86489) + (0.00328 * D^1.51833 * H^0.95083) + (0.02125 * D^1.81216 * H^0.8198) + (0.00698 * D^1.50325 * H^0.84794)","published":{"expression":"(0.06438 * d^1.66448 * h^0.86489) + (0.00328 * d^1.51833 * h^0.95083) + (0.02125 * d^1.81216 * h^0.8198) + (0.00698 * d^1.50325 * h^0.84794)","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Arbutus bicolor","family":"Ericaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":49,"dbh_min_cm":7.9,"dbh_max_cm":44.8,"r2":0.95,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"Wt = ΣWi","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.06438d1.66448h0.86489","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.00328d1.51833h0.95083","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.02125d1.81216h0.8198","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.00698d1.50325h0.84794","locator":"Table 2, p. 12"},{"field":"output","quote":"Wt is the total tree AGB (i.e., the sum of all the tree biomass components)","locator":"Section 2.3.1"},{"field":"fit.r2","quote":"R2 0.95 (cross-validation)","locator":"Table 2, p. 12"},{"field":"fit.n_trees","quote":"(49)","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":12},"expected":126.455,"origin":"computed","note":"computed from the Table 2 equations (sum of the four components)"},{"inputs":{"D":35,"H":18},"expected":462.415,"origin":"computed","note":"computed from the Table 2 equations (sum of the four components)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value. Total AGB is printed as Wt = sum of the four components (stem wood, stem bark, branches, foliage); the expression is that sum of the four printed equations. Table 1 prints a maximum height of 2.5 m against a mean of 8.9 m for this species, which is inconsistent, so the height range is left out."},{"id":"vargas-larreta-2017-a-bicolor-branch","source":"vargas-larreta-2017","name":"Arbutus bicolor branch biomass (wood and bark)","output":{"quantity":"branch_biomass"},"expression":"0.02125 * D^1.81216 * H^0.8198","published":{"expression":"0.02125 * d^1.81216 * h^0.8198","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Arbutus bicolor","family":"Ericaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":49,"dbh_min_cm":7.9,"dbh_max_cm":44.8,"r2":0.95,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"0.02125d1.81216h0.8198","locator":"Table 2, p. 12"},{"field":"output","quote":"branches (including both wood and bark)","locator":"Section 2.2"},{"field":"fit.r2","quote":"R2 0.95 (cross-validation)","locator":"Table 2, p. 12"},{"field":"fit.n_trees","quote":"(49)","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":12},"expected":37.1318,"origin":"computed","note":"computed from the Table 2 equation"},{"inputs":{"D":35,"H":18},"expected":142.735,"origin":"computed","note":"computed from the Table 2 equation"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value. Table 1 prints a maximum height of 2.5 m against a mean of 8.9 m for this species, which is inconsistent, so the height range is left out."},{"id":"vargas-larreta-2017-a-bicolor-foliage","source":"vargas-larreta-2017","name":"Arbutus bicolor foliage biomass","output":{"quantity":"foliage_biomass"},"expression":"0.00698 * D^1.50325 * H^0.84794","published":{"expression":"0.00698 * d^1.50325 * h^0.84794","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Arbutus bicolor","family":"Ericaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":49,"dbh_min_cm":7.9,"dbh_max_cm":44.8,"r2":0.79,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"0.00698d1.50325h0.84794","locator":"Table 2, p. 12"},{"field":"output","quote":"foliage (needles/leaves)","locator":"Section 2.2"},{"field":"fit.r2","quote":"R2 0.79 (cross-validation)","locator":"Table 2, p. 12"},{"field":"fit.n_trees","quote":"(49)","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":12},"expected":5.18453,"origin":"computed","note":"computed from the Table 2 equation"},{"inputs":{"D":35,"H":18},"expected":16.9579,"origin":"computed","note":"computed from the Table 2 equation"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value. Table 1 prints a maximum height of 2.5 m against a mean of 8.9 m for this species, which is inconsistent, so the height range is left out."},{"id":"vargas-larreta-2017-all-oaks-agb","source":"vargas-larreta-2017","name":"Quercus total aboveground biomass","output":{"quantity":"agb"},"expression":"(0.11618 * D^1.77395 * H^0.68708) + (0.00827 * D^2.54589) + (0.0502 * D^1.97638 * H^0.34229) + (0.08234 * D^1.59396)","published":{"expression":"(0.11618 * d^1.77395 * h^0.68708) + (0.00827 * d^2.54589) + (0.0502 * d^1.97638 * h^0.34229) + (0.08234 * d^1.59396)","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"genus","name":"Quercus","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"r2":0.82,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"Wt = ΣWi","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.11618d1.77395h0.68708","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.00827d2.54589","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.0502d1.97638h0.34229","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.08234d1.59396","locator":"Table 2, p. 12"},{"field":"output","quote":"Wt is the total tree AGB (i.e., the sum of all the tree biomass components)","locator":"Section 2.3.1"},{"field":"fit.r2","quote":"R2 0.82 (cross-validation)","locator":"Table 2, p. 12"}],"check":[{"inputs":{"D":20,"H":12},"expected":200.718,"origin":"computed","note":"computed from the Table 2 equations (sum of the four components)"},{"inputs":{"D":35,"H":18},"expected":710.633,"origin":"computed","note":"computed from the Table 2 equations (sum of the four components)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value. Total AGB is printed as Wt = sum of the four components (stem wood, stem bark, branches, foliage); the expression is that sum of the four printed equations. Group equation for all species of the genus in the study; fit ranges not printed for the group."},{"id":"vargas-larreta-2017-all-oaks-branch","source":"vargas-larreta-2017","name":"Quercus branch biomass (wood and bark)","output":{"quantity":"branch_biomass"},"expression":"0.0502 * D^1.97638 * H^0.34229","published":{"expression":"0.0502 * d^1.97638 * h^0.34229","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"genus","name":"Quercus","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"r2":0.57,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"0.0502d1.97638h0.34229","locator":"Table 2, p. 12"},{"field":"output","quote":"branches (including both wood and bark)","locator":"Section 2.2"},{"field":"fit.r2","quote":"R2 0.57 (cross-validation)","locator":"Table 2, p. 12"}],"check":[{"inputs":{"D":20,"H":12},"expected":43.7952,"origin":"computed","note":"computed from the Table 2 equation"},{"inputs":{"D":35,"H":18},"expected":152.067,"origin":"computed","note":"computed from the Table 2 equation"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value. Group equation for all species of the genus in the study; fit ranges not printed for the group."},{"id":"vargas-larreta-2017-all-oaks-foliage","source":"vargas-larreta-2017","name":"Quercus foliage biomass","output":{"quantity":"foliage_biomass"},"expression":"0.08234 * D^1.59396","published":{"expression":"0.08234 * d^1.59396","units":{"d":"cm"},"variables":{"d":"D"},"output_unit":"kg"},"taxon":{"level":"genus","name":"Quercus","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"r2":0.29,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"0.08234d1.59396","locator":"Table 2, p. 12"},{"field":"output","quote":"foliage (needles/leaves)","locator":"Section 2.2"},{"field":"fit.r2","quote":"R2 0.29 (cross-validation)","locator":"Table 2, p. 12"}],"check":[{"inputs":{"D":20},"expected":9.75889,"origin":"computed","note":"computed from the Table 2 equation"},{"inputs":{"D":35},"expected":23.8119,"origin":"computed","note":"computed from the Table 2 equation"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value. Group equation for all species of the genus in the study; fit ranges not printed for the group."},{"id":"vargas-larreta-2017-all-pines-agb","source":"vargas-larreta-2017","name":"Pinus total aboveground biomass","output":{"quantity":"agb"},"expression":"(0.0291 * D^1.74165 * H^1.16614) + (0.02029 * D^1.33299 * H^0.92887) + (0.02508 * D^1.83773 * H^0.54626) + (0.05227 * D^1.28231 * H^0.43275)","published":{"expression":"(0.0291 * d^1.74165 * h^1.16614) + (0.02029 * d^1.33299 * h^0.92887) + (0.02508 * d^1.83773 * h^0.54626) + (0.05227 * d^1.28231 * h^0.43275)","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"genus","name":"Pinus","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"r2":0.93,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"Wt = ΣWi","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.0291d1.74165h1.16614","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.02029d1.33299h0.92887","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.02508d1.83773h0.54626","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.05227d1.28231h0.43275","locator":"Table 2, p. 12"},{"field":"output","quote":"Wt is the total tree AGB (i.e., the sum of all the tree biomass components)","locator":"Section 2.3.1"},{"field":"fit.r2","quote":"R2 0.93 (cross-validation)","locator":"Table 2, p. 12"}],"check":[{"inputs":{"D":20,"H":12},"expected":139.524,"origin":"computed","note":"computed from the Table 2 equations (sum of the four components)"},{"inputs":{"D":35,"H":18},"expected":549.06,"origin":"computed","note":"computed from the Table 2 equations (sum of the four components)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value. Total AGB is printed as Wt = sum of the four components (stem wood, stem bark, branches, foliage); the expression is that sum of the four printed equations. Group equation for all species of the genus in the study; fit ranges not printed for the group."},{"id":"vargas-larreta-2017-all-pines-branch","source":"vargas-larreta-2017","name":"Pinus branch biomass (wood and bark)","output":{"quantity":"branch_biomass"},"expression":"0.02508 * D^1.83773 * H^0.54626","published":{"expression":"0.02508 * d^1.83773 * h^0.54626","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"genus","name":"Pinus","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"r2":0.61,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"0.02508d1.83773h0.54626","locator":"Table 2, p. 12"},{"field":"output","quote":"branches (including both wood and bark)","locator":"Section 2.2"},{"field":"fit.r2","quote":"R2 0.61 (cross-validation)","locator":"Table 2, p. 12"}],"check":[{"inputs":{"D":20,"H":12},"expected":23.9763,"origin":"computed","note":"computed from the Table 2 equation"},{"inputs":{"D":35,"H":18},"expected":83.6783,"origin":"computed","note":"computed from the Table 2 equation"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value. Group equation for all species of the genus in the study; fit ranges not printed for the group."},{"id":"vargas-larreta-2017-all-pines-foliage","source":"vargas-larreta-2017","name":"Pinus foliage biomass","output":{"quantity":"foliage_biomass"},"expression":"0.05227 * D^1.28231 * H^0.43275","published":{"expression":"0.05227 * d^1.28231 * h^0.43275","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"genus","name":"Pinus","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"r2":0.52,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"0.05227d1.28231h0.43275","locator":"Table 2, p. 12"},{"field":"output","quote":"foliage (needles/leaves)","locator":"Section 2.2"},{"field":"fit.r2","quote":"R2 0.52 (cross-validation)","locator":"Table 2, p. 12"}],"check":[{"inputs":{"D":20,"H":12},"expected":7.13825,"origin":"computed","note":"computed from the Table 2 equation"},{"inputs":{"D":35,"H":18},"expected":17.4359,"origin":"computed","note":"computed from the Table 2 equation"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value. Group equation for all species of the genus in the study; fit ranges not printed for the group."},{"id":"vargas-larreta-2017-j-deppeana-agb","source":"vargas-larreta-2017","name":"Juniperus deppeana total aboveground biomass","output":{"quantity":"agb"},"expression":"(0.01289 * D^2 * H) + (0.000772 * D^2 * H) + (0.00204 * D^2 * H) + (0.00098 * D^2 * H)","published":{"expression":"(0.01289 * d^2 * h) + (0.000772 * d^2 * h) + (0.00204 * d^2 * h) + (0.00098 * d^2 * h)","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Juniperus deppeana","family":"Cupressaceae","group":"conifer"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":48,"dbh_min_cm":10,"dbh_max_cm":43.7,"h_min_m":4.5,"h_max_m":21.5,"r2":0.9,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"Wt = ΣWi","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.01289d2h","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.000772d2h","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.00204d2h","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.00098d2h","locator":"Table 2, p. 12"},{"field":"output","quote":"Wt is the total tree AGB (i.e., the sum of all the tree biomass components)","locator":"Section 2.3.1"},{"field":"fit.r2","quote":"R2 0.90 (cross-validation)","locator":"Table 2, p. 12"},{"field":"fit.n_trees","quote":"(48)","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":12},"expected":80.0736,"origin":"computed","note":"computed from the Table 2 equations (sum of the four components)"},{"inputs":{"D":35,"H":18},"expected":367.838,"origin":"computed","note":"computed from the Table 2 equations (sum of the four components)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value. Total AGB is printed as Wt = sum of the four components (stem wood, stem bark, branches, foliage); the expression is that sum of the four printed equations. Printed \"J. depeanna\" in the paper; the accepted spelling is Juniperus deppeana."},{"id":"vargas-larreta-2017-j-deppeana-branch","source":"vargas-larreta-2017","name":"Juniperus deppeana branch biomass (wood and bark)","output":{"quantity":"branch_biomass"},"expression":"0.00204 * D^2 * H","published":{"expression":"0.00204 * d^2 * h","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Juniperus deppeana","family":"Cupressaceae","group":"conifer"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":48,"dbh_min_cm":10,"dbh_max_cm":43.7,"h_min_m":4.5,"h_max_m":21.5,"r2":0.81,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"0.00204d2h","locator":"Table 2, p. 12"},{"field":"output","quote":"branches (including both wood and bark)","locator":"Section 2.2"},{"field":"fit.r2","quote":"R2 0.81 (cross-validation)","locator":"Table 2, p. 12"},{"field":"fit.n_trees","quote":"(48)","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":12},"expected":9.792,"origin":"computed","note":"computed from the Table 2 equation"},{"inputs":{"D":35,"H":18},"expected":44.982,"origin":"computed","note":"computed from the Table 2 equation"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value. Printed \"J. depeanna\" in the paper; the accepted spelling is Juniperus deppeana."},{"id":"vargas-larreta-2017-j-deppeana-foliage","source":"vargas-larreta-2017","name":"Juniperus deppeana foliage biomass","output":{"quantity":"foliage_biomass"},"expression":"0.00098 * D^2 * H","published":{"expression":"0.00098 * d^2 * h","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Juniperus deppeana","family":"Cupressaceae","group":"conifer"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":48,"dbh_min_cm":10,"dbh_max_cm":43.7,"h_min_m":4.5,"h_max_m":21.5,"r2":0.67,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"0.00098d2h","locator":"Table 2, p. 12"},{"field":"output","quote":"foliage (needles/leaves)","locator":"Section 2.2"},{"field":"fit.r2","quote":"R2 0.67 (cross-validation)","locator":"Table 2, p. 12"},{"field":"fit.n_trees","quote":"(48)","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":12},"expected":4.704,"origin":"computed","note":"computed from the Table 2 equation"},{"inputs":{"D":35,"H":18},"expected":21.609,"origin":"computed","note":"computed from the Table 2 equation"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value. Printed \"J. depeanna\" in the paper; the accepted spelling is Juniperus deppeana."},{"id":"vargas-larreta-2017-p-cooperi-agb","source":"vargas-larreta-2017","name":"Pinus cooperi total aboveground biomass","output":{"quantity":"agb"},"expression":"(0.031126 * D^2.09355 * H^0.768845) + (0.011361 * D^1.676006 * H^0.74627) + (0.007965 * D^1.599044 * H^1.347388) + (0.049925 * D^1.122846 * H^0.600293)","published":{"expression":"(0.031126 * d^2.09355 * h^0.768845) + (0.011361 * d^1.676006 * h^0.74627) + (0.007965 * d^1.599044 * h^1.347388) + (0.049925 * d^1.122846 * h^0.600293)","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus cooperi","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":103,"dbh_min_cm":5.5,"dbh_max_cm":52.3,"h_min_m":4.2,"h_max_m":28,"r2":0.94,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"Wt = ΣWi","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.031126d2.09355h0.768845","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.011361d1.676006h0.74627","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.007965d1.599044h1.347388","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.049925d1.122846h0.600293","locator":"Table 2, p. 12"},{"field":"output","quote":"Wt is the total tree AGB (i.e., the sum of all the tree biomass components)","locator":"Section 2.3.1"},{"field":"fit.r2","quote":"R2 0.94 (cross-validation)","locator":"Table 2, p. 12"},{"field":"fit.n_trees","quote":"(103)","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":12},"expected":156.01,"origin":"computed","note":"computed from the Table 2 equations (sum of the four components)"},{"inputs":{"D":35,"H":18},"expected":659.285,"origin":"computed","note":"computed from the Table 2 equations (sum of the four components)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value. Total AGB is printed as Wt = sum of the four components (stem wood, stem bark, branches, foliage); the expression is that sum of the four printed equations."},{"id":"vargas-larreta-2017-p-cooperi-branch","source":"vargas-larreta-2017","name":"Pinus cooperi branch biomass (wood and bark)","output":{"quantity":"branch_biomass"},"expression":"0.007965 * D^1.599044 * H^1.347388","published":{"expression":"0.007965 * d^1.599044 * h^1.347388","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus cooperi","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":103,"dbh_min_cm":5.5,"dbh_max_cm":52.3,"h_min_m":4.2,"h_max_m":28,"r2":0.89,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"0.007965d1.599044h1.347388","locator":"Table 2, p. 12"},{"field":"output","quote":"branches (including both wood and bark)","locator":"Section 2.2"},{"field":"fit.r2","quote":"R2 0.89 (cross-validation)","locator":"Table 2, p. 12"},{"field":"fit.n_trees","quote":"(103)","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":12},"expected":27.2688,"origin":"computed","note":"computed from the Table 2 equation"},{"inputs":{"D":35,"H":18},"expected":115.228,"origin":"computed","note":"computed from the Table 2 equation"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value."},{"id":"vargas-larreta-2017-p-cooperi-foliage","source":"vargas-larreta-2017","name":"Pinus cooperi foliage biomass","output":{"quantity":"foliage_biomass"},"expression":"0.049925 * D^1.122846 * H^0.600293","published":{"expression":"0.049925 * d^1.122846 * h^0.600293","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus cooperi","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":103,"dbh_min_cm":5.5,"dbh_max_cm":52.3,"h_min_m":4.2,"h_max_m":28,"r2":0.74,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"0.049925d1.122846h0.600293","locator":"Table 2, p. 12"},{"field":"output","quote":"foliage (needles/leaves)","locator":"Section 2.2"},{"field":"fit.r2","quote":"R2 0.74 (cross-validation)","locator":"Table 2, p. 12"},{"field":"fit.n_trees","quote":"(103)","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":12},"expected":6.41209,"origin":"computed","note":"computed from the Table 2 equation"},{"inputs":{"D":35,"H":18},"expected":15.332,"origin":"computed","note":"computed from the Table 2 equation"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value."},{"id":"vargas-larreta-2017-p-douglasiana-michoacana-agb","source":"vargas-larreta-2017","name":"Pinus douglasiana and Pinus michoacana total aboveground biomass","output":{"quantity":"agb"},"expression":"(0.11997 * D^2.34448) + (0.03126 * D^1.978201) + (0.014982 * D^2.40887) + (0.01168 * D^2.148631)","published":{"expression":"(0.11997 * d^2.34448) + (0.03126 * d^1.978201) + (0.014982 * d^2.40887) + (0.01168 * d^2.148631)","units":{"d":"cm"},"variables":{"d":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Pinus douglasiana and Pinus michoacana (data combined)","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"r2":0.91,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"Wt = ΣWi","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.11997d2.34448","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.03126d1.978201","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.014982d2.40887","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.01168d2.148631","locator":"Table 2, p. 12"},{"field":"output","quote":"Wt is the total tree AGB (i.e., the sum of all the tree biomass components)","locator":"Section 2.3.1"},{"field":"fit.r2","quote":"R2 0.91 (cross-validation)","locator":"Table 2, p. 12"}],"check":[{"inputs":{"D":20},"expected":174.086,"origin":"computed","note":"computed from the Table 2 equations (sum of the four components)"},{"inputs":{"D":35},"expected":638.397,"origin":"computed","note":"computed from the Table 2 equations (sum of the four components)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value. Total AGB is printed as Wt = sum of the four components (stem wood, stem bark, branches, foliage); the expression is that sum of the four printed equations. Data of the two species were combined by the authors; fit ranges not printed for the combined set."},{"id":"vargas-larreta-2017-p-douglasiana-michoacana-branch","source":"vargas-larreta-2017","name":"Pinus douglasiana and Pinus michoacana branch biomass (wood and bark)","output":{"quantity":"branch_biomass"},"expression":"0.014982 * D^2.40887","published":{"expression":"0.014982 * d^2.40887","units":{"d":"cm"},"variables":{"d":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Pinus douglasiana and Pinus michoacana (data combined)","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"r2":0.9,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"0.014982d2.40887","locator":"Table 2, p. 12"},{"field":"output","quote":"branches (including both wood and bark)","locator":"Section 2.2"},{"field":"fit.r2","quote":"R2 0.90 (cross-validation)","locator":"Table 2, p. 12"}],"check":[{"inputs":{"D":20},"expected":20.3977,"origin":"computed","note":"computed from the Table 2 equation"},{"inputs":{"D":35},"expected":78.5288,"origin":"computed","note":"computed from the Table 2 equation"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value. Data of the two species were combined by the authors; fit ranges not printed for the combined set."},{"id":"vargas-larreta-2017-p-douglasiana-michoacana-foliage","source":"vargas-larreta-2017","name":"Pinus douglasiana and Pinus michoacana foliage biomass","output":{"quantity":"foliage_biomass"},"expression":"0.01168 * D^2.148631","published":{"expression":"0.01168 * d^2.148631","units":{"d":"cm"},"variables":{"d":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Pinus douglasiana and Pinus michoacana (data combined)","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"r2":0.83,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"0.01168d2.148631","locator":"Table 2, p. 12"},{"field":"output","quote":"foliage (needles/leaves)","locator":"Section 2.2"},{"field":"fit.r2","quote":"R2 0.83 (cross-validation)","locator":"Table 2, p. 12"}],"check":[{"inputs":{"D":20},"expected":7.2925,"origin":"computed","note":"computed from the Table 2 equation"},{"inputs":{"D":35},"expected":24.2703,"origin":"computed","note":"computed from the Table 2 equation"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value. Data of the two species were combined by the authors; fit ranges not printed for the combined set."},{"id":"vargas-larreta-2017-p-durangensis-agb","source":"vargas-larreta-2017","name":"Pinus durangensis total aboveground biomass","output":{"quantity":"agb"},"expression":"(0.01204 * D^1.76074 * H^1.45047) + (0.01706 * D^1.37067 * H^1.10922) + (0.14589 * D^1.64608 * H^0.41109) + (0.00301 * D^1.50863 * H^1.15013)","published":{"expression":"(0.01204 * d^1.76074 * h^1.45047) + (0.01706 * d^1.37067 * h^1.10922) + (0.14589 * d^1.64608 * h^0.41109) + (0.00301 * d^1.50863 * h^1.15013)","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus durangensis","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":130,"dbh_min_cm":8.7,"dbh_max_cm":44.5,"h_min_m":6.9,"h_max_m":29.8,"r2":0.96,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"Wt = ΣWi","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.01204d1.76074h1.45047","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.01706d1.37067h1.10922","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.14589d1.64608h0.41109","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.00301d1.50863h1.15013","locator":"Table 2, p. 12"},{"field":"output","quote":"Wt is the total tree AGB (i.e., the sum of all the tree biomass components)","locator":"Section 2.3.1"},{"field":"fit.r2","quote":"R2 0.96 (cross-validation)","locator":"Table 2, p. 12"},{"field":"fit.n_trees","quote":"(130)","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":12},"expected":163.7,"origin":"computed","note":"computed from the Table 2 equations (sum of the four components)"},{"inputs":{"D":35,"H":18},"expected":656.45,"origin":"computed","note":"computed from the Table 2 equations (sum of the four components)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value. Total AGB is printed as Wt = sum of the four components (stem wood, stem bark, branches, foliage); the expression is that sum of the four printed equations."},{"id":"vargas-larreta-2017-p-durangensis-branch","source":"vargas-larreta-2017","name":"Pinus durangensis branch biomass (wood and bark)","output":{"quantity":"branch_biomass"},"expression":"0.14589 * D^1.64608 * H^0.41109","published":{"expression":"0.14589 * d^1.64608 * h^0.41109","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus durangensis","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":130,"dbh_min_cm":8.7,"dbh_max_cm":44.5,"h_min_m":6.9,"h_max_m":29.8,"r2":0.71,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"0.14589d1.64608h0.41109","locator":"Table 2, p. 12"},{"field":"output","quote":"branches (including both wood and bark)","locator":"Section 2.2"},{"field":"fit.r2","quote":"R2 0.71 (cross-validation)","locator":"Table 2, p. 12"},{"field":"fit.n_trees","quote":"(130)","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":12},"expected":56.1391,"origin":"computed","note":"computed from the Table 2 equation"},{"inputs":{"D":35,"H":18},"expected":166.615,"origin":"computed","note":"computed from the Table 2 equation"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value."},{"id":"vargas-larreta-2017-p-durangensis-foliage","source":"vargas-larreta-2017","name":"Pinus durangensis foliage biomass","output":{"quantity":"foliage_biomass"},"expression":"0.00301 * D^1.50863 * H^1.15013","published":{"expression":"0.00301 * d^1.50863 * h^1.15013","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus durangensis","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":130,"dbh_min_cm":8.7,"dbh_max_cm":44.5,"h_min_m":6.9,"h_max_m":29.8,"r2":0.83,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"0.00301d1.50863h1.15013","locator":"Table 2, p. 12"},{"field":"output","quote":"foliage (needles/leaves)","locator":"Section 2.2"},{"field":"fit.r2","quote":"R2 0.83 (cross-validation)","locator":"Table 2, p. 12"},{"field":"fit.n_trees","quote":"(130)","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":12},"expected":4.81435,"origin":"computed","note":"computed from the Table 2 equation"},{"inputs":{"D":35,"H":18},"expected":17.8534,"origin":"computed","note":"computed from the Table 2 equation"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value."},{"id":"vargas-larreta-2017-p-engelmannii-agb","source":"vargas-larreta-2017","name":"Pinus engelmannii total aboveground biomass","output":{"quantity":"agb"},"expression":"(0.09798 * D^1.67370 * H^1.02867) + (0.037974 * D^1.11488 * H^0.88389) + (1.39092 * D^1.25795 * H^0.05199) + (0.069316 * D^1.24804 * H^0.34853)","published":{"expression":"(0.09798 * d^1.67370 * h^1.02867) + (0.037974 * d^1.11488 * h^0.88389) + (1.39092 * d^1.25795 * h^0.05199) + (0.069316 * d^1.24804 * h^0.34853)","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus engelmannii","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":89,"dbh_min_cm":6.5,"dbh_max_cm":51.8,"h_min_m":3.8,"h_max_m":27.8,"r2":0.92,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"Wt = ΣWi","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.09798d1.67370h1.02867","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.037974d1.11488h0.88389","locator":"Table 2, p. 12"},{"field":"expression","quote":"1.39092d1.25795h0.05199","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.069316d1.24804h0.34853","locator":"Table 2, p. 12"},{"field":"output","quote":"Wt is the total tree AGB (i.e., the sum of all the tree biomass components)","locator":"Section 2.3.1"},{"field":"fit.r2","quote":"R2 0.92 (cross-validation)","locator":"Table 2, p. 12"},{"field":"fit.n_trees","quote":"(89)","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":12},"expected":275.137,"origin":"computed","note":"computed from the Table 2 equations (sum of the four components)"},{"inputs":{"D":35,"H":18},"expected":919.04,"origin":"computed","note":"computed from the Table 2 equations (sum of the four components)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value. Total AGB is printed as Wt = sum of the four components (stem wood, stem bark, branches, foliage); the expression is that sum of the four printed equations."},{"id":"vargas-larreta-2017-p-engelmannii-branch","source":"vargas-larreta-2017","name":"Pinus engelmannii branch biomass (wood and bark)","output":{"quantity":"branch_biomass"},"expression":"1.39092 * D^1.25795 * H^0.05199","published":{"expression":"1.39092 * d^1.25795 * h^0.05199","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus engelmannii","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":89,"dbh_min_cm":6.5,"dbh_max_cm":51.8,"h_min_m":3.8,"h_max_m":27.8,"r2":0.59,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"1.39092d1.25795h0.05199","locator":"Table 2, p. 12"},{"field":"output","quote":"branches (including both wood and bark)","locator":"Section 2.2"},{"field":"fit.r2","quote":"R2 0.59 (cross-validation)","locator":"Table 2, p. 12"},{"field":"fit.n_trees","quote":"(89)","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":12},"expected":68.5551,"origin":"computed","note":"computed from the Table 2 equation"},{"inputs":{"D":35,"H":18},"expected":141.555,"origin":"computed","note":"computed from the Table 2 equation"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value."},{"id":"vargas-larreta-2017-p-engelmannii-foliage","source":"vargas-larreta-2017","name":"Pinus engelmannii foliage biomass","output":{"quantity":"foliage_biomass"},"expression":"0.069316 * D^1.24804 * H^0.34853","published":{"expression":"0.069316 * d^1.24804 * h^0.34853","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus engelmannii","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":89,"dbh_min_cm":6.5,"dbh_max_cm":51.8,"h_min_m":3.8,"h_max_m":27.8,"r2":0.7,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"0.069316d1.24804h0.34853","locator":"Table 2, p. 12"},{"field":"output","quote":"foliage (needles/leaves)","locator":"Section 2.2"},{"field":"fit.r2","quote":"R2 0.70 (cross-validation)","locator":"Table 2, p. 12"},{"field":"fit.n_trees","quote":"(89)","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":12},"expected":6.92944,"origin":"computed","note":"computed from the Table 2 equation"},{"inputs":{"D":35,"H":18},"expected":16.0469,"origin":"computed","note":"computed from the Table 2 equation"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value."},{"id":"vargas-larreta-2017-p-herrerae-agb","source":"vargas-larreta-2017","name":"Pinus herrerae total aboveground biomass","output":{"quantity":"agb"},"expression":"(0.06741 * D^2.520356) + (0.02468 * D^1.98837) + (0.05085 * D^2.03574) + (0.05437 * D^1.64335)","published":{"expression":"(0.06741 * d^2.520356) + (0.02468 * d^1.98837) + (0.05085 * d^2.03574) + (0.05437 * d^1.64335)","units":{"d":"cm"},"variables":{"d":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus herrerae","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":97,"dbh_min_cm":5,"dbh_max_cm":46.4,"h_min_m":5.2,"h_max_m":31,"r2":0.85,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"Wt = ΣWi","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.06741d2.520356","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.02468d1.98837","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.05085d2.03574","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.05437d1.64335","locator":"Table 2, p. 12"},{"field":"output","quote":"Wt is the total tree AGB (i.e., the sum of all the tree biomass components)","locator":"Section 2.3.1"},{"field":"fit.r2","quote":"R2 0.85 (cross-validation)","locator":"Table 2, p. 12"},{"field":"fit.n_trees","quote":"(97)","locator":"Table 1"}],"check":[{"inputs":{"D":20},"expected":167.813,"origin":"computed","note":"computed from the Table 2 equations (sum of the four components)"},{"inputs":{"D":35},"expected":643.682,"origin":"computed","note":"computed from the Table 2 equations (sum of the four components)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value. Total AGB is printed as Wt = sum of the four components (stem wood, stem bark, branches, foliage); the expression is that sum of the four printed equations."},{"id":"vargas-larreta-2017-p-herrerae-branch","source":"vargas-larreta-2017","name":"Pinus herrerae branch biomass (wood and bark)","output":{"quantity":"branch_biomass"},"expression":"0.05085 * D^2.03574","published":{"expression":"0.05085 * d^2.03574","units":{"d":"cm"},"variables":{"d":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus herrerae","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":97,"dbh_min_cm":5,"dbh_max_cm":46.4,"h_min_m":5.2,"h_max_m":31,"r2":0.72,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"0.05085d2.03574","locator":"Table 2, p. 12"},{"field":"output","quote":"branches (including both wood and bark)","locator":"Section 2.2"},{"field":"fit.r2","quote":"R2 0.72 (cross-validation)","locator":"Table 2, p. 12"},{"field":"fit.n_trees","quote":"(97)","locator":"Table 1"}],"check":[{"inputs":{"D":20},"expected":22.6386,"origin":"computed","note":"computed from the Table 2 equation"},{"inputs":{"D":35},"expected":70.7314,"origin":"computed","note":"computed from the Table 2 equation"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value."},{"id":"vargas-larreta-2017-p-herrerae-foliage","source":"vargas-larreta-2017","name":"Pinus herrerae foliage biomass","output":{"quantity":"foliage_biomass"},"expression":"0.05437 * D^1.64335","published":{"expression":"0.05437 * d^1.64335","units":{"d":"cm"},"variables":{"d":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus herrerae","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":97,"dbh_min_cm":5,"dbh_max_cm":46.4,"h_min_m":5.2,"h_max_m":31,"r2":0.6,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"0.05437d1.64335","locator":"Table 2, p. 12"},{"field":"output","quote":"foliage (needles/leaves)","locator":"Section 2.2"},{"field":"fit.r2","quote":"R2 0.60 (cross-validation)","locator":"Table 2, p. 12"},{"field":"fit.n_trees","quote":"(97)","locator":"Table 1"}],"check":[{"inputs":{"D":20},"expected":7.47149,"origin":"computed","note":"computed from the Table 2 equation"},{"inputs":{"D":35},"expected":18.7415,"origin":"computed","note":"computed from the Table 2 equation"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value."},{"id":"vargas-larreta-2017-p-leiophylla-agb","source":"vargas-larreta-2017","name":"Pinus leiophylla total aboveground biomass","output":{"quantity":"agb"},"expression":"(0.015582 * D^2 * H) + (0.001074 * D^2 * H) + (0.007269 * D^2 * H) + (0.000343 * D^2 * H)","published":{"expression":"(0.015582 * d^2 * h) + (0.001074 * d^2 * h) + (0.007269 * d^2 * h) + (0.000343 * d^2 * h)","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus leiophylla","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":84,"dbh_min_cm":8.4,"dbh_max_cm":55.3,"h_min_m":5.4,"h_max_m":29.2,"r2":0.92,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"Wt = ΣWi","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.015582d2h","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.001074d2h","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.007269d2h","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.000343d2h","locator":"Table 2, p. 12"},{"field":"output","quote":"Wt is the total tree AGB (i.e., the sum of all the tree biomass components)","locator":"Section 2.3.1"},{"field":"fit.r2","quote":"R2 0.92 (cross-validation)","locator":"Table 2, p. 12"},{"field":"fit.n_trees","quote":"(84)","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":12},"expected":116.486,"origin":"computed","note":"computed from the Table 2 equations (sum of the four components)"},{"inputs":{"D":35,"H":18},"expected":535.109,"origin":"computed","note":"computed from the Table 2 equations (sum of the four components)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value. Total AGB is printed as Wt = sum of the four components (stem wood, stem bark, branches, foliage); the expression is that sum of the four printed equations."},{"id":"vargas-larreta-2017-p-leiophylla-branch","source":"vargas-larreta-2017","name":"Pinus leiophylla branch biomass (wood and bark)","output":{"quantity":"branch_biomass"},"expression":"0.007269 * D^2 * H","published":{"expression":"0.007269 * d^2 * h","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus leiophylla","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":84,"dbh_min_cm":8.4,"dbh_max_cm":55.3,"h_min_m":5.4,"h_max_m":29.2,"r2":0.63,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"0.007269d2h","locator":"Table 2, p. 12"},{"field":"output","quote":"branches (including both wood and bark)","locator":"Section 2.2"},{"field":"fit.r2","quote":"R2 0.63 (cross-validation)","locator":"Table 2, p. 12"},{"field":"fit.n_trees","quote":"(84)","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":12},"expected":34.8912,"origin":"computed","note":"computed from the Table 2 equation"},{"inputs":{"D":35,"H":18},"expected":160.281,"origin":"computed","note":"computed from the Table 2 equation"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value."},{"id":"vargas-larreta-2017-p-leiophylla-foliage","source":"vargas-larreta-2017","name":"Pinus leiophylla foliage biomass","output":{"quantity":"foliage_biomass"},"expression":"0.000343 * D^2 * H","published":{"expression":"0.000343 * d^2 * h","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus leiophylla","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":84,"dbh_min_cm":8.4,"dbh_max_cm":55.3,"h_min_m":5.4,"h_max_m":29.2,"r2":0.81,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"0.000343d2h","locator":"Table 2, p. 12"},{"field":"output","quote":"foliage (needles/leaves)","locator":"Section 2.2"},{"field":"fit.r2","quote":"R2 0.81 (cross-validation)","locator":"Table 2, p. 12"},{"field":"fit.n_trees","quote":"(84)","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":12},"expected":1.6464,"origin":"computed","note":"computed from the Table 2 equation"},{"inputs":{"D":35,"H":18},"expected":7.56315,"origin":"computed","note":"computed from the Table 2 equation"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value."},{"id":"vargas-larreta-2017-p-lumholtzii-agb","source":"vargas-larreta-2017","name":"Pinus lumholtzii total aboveground biomass","output":{"quantity":"agb"},"expression":"(0.078527 * D^2.5043) + (0.022809 * D^1.93859) + (0.03461 * D^2.1666) + (0.011642 * D^2.16799)","published":{"expression":"(0.078527 * d^2.5043) + (0.022809 * d^1.93859) + (0.03461 * d^2.1666) + (0.011642 * d^2.16799)","units":{"d":"cm"},"variables":{"d":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus lumholtzii","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":35,"dbh_min_cm":5,"dbh_max_cm":42,"h_min_m":3.6,"h_max_m":24.9,"r2":0.9,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"Wt = ΣWi","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.078527d2.5043","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.022809d1.93859","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.03461d2.1666","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.011642d2.16799","locator":"Table 2, p. 12"},{"field":"output","quote":"Wt is the total tree AGB (i.e., the sum of all the tree biomass components)","locator":"Section 2.3.1"},{"field":"fit.r2","quote":"R2 0.90 (cross-validation)","locator":"Table 2, p. 12"},{"field":"fit.n_trees","quote":"(35)","locator":"Table 1"}],"check":[{"inputs":{"D":20},"expected":180.392,"origin":"computed","note":"computed from the Table 2 equations (sum of the four components)"},{"inputs":{"D":35},"expected":702.905,"origin":"computed","note":"computed from the Table 2 equations (sum of the four components)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value. Total AGB is printed as Wt = sum of the four components (stem wood, stem bark, branches, foliage); the expression is that sum of the four printed equations."},{"id":"vargas-larreta-2017-p-lumholtzii-branch","source":"vargas-larreta-2017","name":"Pinus lumholtzii branch biomass (wood and bark)","output":{"quantity":"branch_biomass"},"expression":"0.03461 * D^2.1666","published":{"expression":"0.03461 * d^2.1666","units":{"d":"cm"},"variables":{"d":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus lumholtzii","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":35,"dbh_min_cm":5,"dbh_max_cm":42,"h_min_m":3.6,"h_max_m":24.9,"r2":0.83,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"0.03461d2.1666","locator":"Table 2, p. 12"},{"field":"output","quote":"branches (including both wood and bark)","locator":"Section 2.2"},{"field":"fit.r2","quote":"R2 0.83 (cross-validation)","locator":"Table 2, p. 12"},{"field":"fit.n_trees","quote":"(35)","locator":"Table 1"}],"check":[{"inputs":{"D":20},"expected":22.8041,"origin":"computed","note":"computed from the Table 2 equation"},{"inputs":{"D":35},"expected":76.6619,"origin":"computed","note":"computed from the Table 2 equation"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value."},{"id":"vargas-larreta-2017-p-lumholtzii-foliage","source":"vargas-larreta-2017","name":"Pinus lumholtzii foliage biomass","output":{"quantity":"foliage_biomass"},"expression":"0.011642 * D^2.16799","published":{"expression":"0.011642 * d^2.16799","units":{"d":"cm"},"variables":{"d":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus lumholtzii","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":35,"dbh_min_cm":5,"dbh_max_cm":42,"h_min_m":3.6,"h_max_m":24.9,"r2":0.82,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"0.011642d2.16799","locator":"Table 2, p. 12"},{"field":"output","quote":"foliage (needles/leaves)","locator":"Section 2.2"},{"field":"fit.r2","quote":"R2 0.82 (cross-validation)","locator":"Table 2, p. 12"},{"field":"fit.n_trees","quote":"(35)","locator":"Table 1"}],"check":[{"inputs":{"D":20},"expected":7.70278,"origin":"computed","note":"computed from the Table 2 equation"},{"inputs":{"D":35},"expected":25.915,"origin":"computed","note":"computed from the Table 2 equation"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value."},{"id":"vargas-larreta-2017-p-oocarpa-agb","source":"vargas-larreta-2017","name":"Pinus oocarpa total aboveground biomass","output":{"quantity":"agb"},"expression":"(0.01753 * D^1.8261 * H^1.28397) + (0.02898 * D^2.08978) + (0.00948 * D^2.7493) + (0.04163 * D^1.93601)","published":{"expression":"(0.01753 * d^1.8261 * h^1.28397) + (0.02898 * d^2.08978) + (0.00948 * d^2.7493) + (0.04163 * d^1.93601)","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus oocarpa","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":37,"dbh_min_cm":7.5,"dbh_max_cm":35.7,"h_min_m":3.2,"h_max_m":18.7,"r2":0.94,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"Wt = ΣWi","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.01753d1.8261h1.28397","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.02898d2.08978","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.00948d2.7493","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.04163d1.93601","locator":"Table 2, p. 12"},{"field":"output","quote":"Wt is the total tree AGB (i.e., the sum of all the tree biomass components)","locator":"Section 2.3.1"},{"field":"fit.r2","quote":"R2 0.94 (cross-validation)","locator":"Table 2, p. 12"},{"field":"fit.n_trees","quote":"(37)","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":12},"expected":165.915,"origin":"computed","note":"computed from the Table 2 equations (sum of the four components)"},{"inputs":{"D":35,"H":18},"expected":729.462,"origin":"computed","note":"computed from the Table 2 equations (sum of the four components)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value. Total AGB is printed as Wt = sum of the four components (stem wood, stem bark, branches, foliage); the expression is that sum of the four printed equations."},{"id":"vargas-larreta-2017-p-oocarpa-branch","source":"vargas-larreta-2017","name":"Pinus oocarpa branch biomass (wood and bark)","output":{"quantity":"branch_biomass"},"expression":"0.00948 * D^2.7493","published":{"expression":"0.00948 * d^2.7493","units":{"d":"cm"},"variables":{"d":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus oocarpa","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":37,"dbh_min_cm":7.5,"dbh_max_cm":35.7,"h_min_m":3.2,"h_max_m":18.7,"r2":0.87,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"0.00948d2.7493","locator":"Table 2, p. 12"},{"field":"output","quote":"branches (including both wood and bark)","locator":"Section 2.2"},{"field":"fit.r2","quote":"R2 0.87 (cross-validation)","locator":"Table 2, p. 12"},{"field":"fit.n_trees","quote":"(37)","locator":"Table 1"}],"check":[{"inputs":{"D":20},"expected":35.7874,"origin":"computed","note":"computed from the Table 2 equation"},{"inputs":{"D":35},"expected":166.692,"origin":"computed","note":"computed from the Table 2 equation"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value."},{"id":"vargas-larreta-2017-p-oocarpa-foliage","source":"vargas-larreta-2017","name":"Pinus oocarpa foliage biomass","output":{"quantity":"foliage_biomass"},"expression":"0.04163 * D^1.93601","published":{"expression":"0.04163 * d^1.93601","units":{"d":"cm"},"variables":{"d":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus oocarpa","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":37,"dbh_min_cm":7.5,"dbh_max_cm":35.7,"h_min_m":3.2,"h_max_m":18.7,"r2":0.83,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"0.04163d1.93601","locator":"Table 2, p. 12"},{"field":"output","quote":"foliage (needles/leaves)","locator":"Section 2.2"},{"field":"fit.r2","quote":"R2 0.83 (cross-validation)","locator":"Table 2, p. 12"},{"field":"fit.n_trees","quote":"(37)","locator":"Table 1"}],"check":[{"inputs":{"D":20},"expected":13.7472,"origin":"computed","note":"computed from the Table 2 equation"},{"inputs":{"D":35},"expected":40.6198,"origin":"computed","note":"computed from the Table 2 equation"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value."},{"id":"vargas-larreta-2017-p-strobiformis-agb","source":"vargas-larreta-2017","name":"Pinus strobiformis total aboveground biomass","output":{"quantity":"agb"},"expression":"(0.00716 * D^2.02253 * H^1.30938) + (0.03088 * D^1.10021 * H^1.09925) + (0.01613 * D^1.90578 * H^0.70112) + (0.03886 * D^1.53515 * H^0.31776)","published":{"expression":"(0.00716 * d^2.02253 * h^1.30938) + (0.03088 * d^1.10021 * h^1.09925) + (0.01613 * d^1.90578 * h^0.70112) + (0.03886 * d^1.53515 * h^0.31776)","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus strobiformis","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":98,"dbh_min_cm":5,"dbh_max_cm":49,"h_min_m":6.3,"h_max_m":26.6,"r2":0.93,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"Wt = ΣWi","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.00716d2.02253h1.30938","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.03088d1.10021h1.09925","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.01613d1.90578h0.70112","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.03886d1.53515h0.31776","locator":"Table 2, p. 12"},{"field":"output","quote":"Wt is the total tree AGB (i.e., the sum of all the tree biomass components)","locator":"Section 2.3.1"},{"field":"fit.r2","quote":"R2 0.93 (cross-validation)","locator":"Table 2, p. 12"},{"field":"fit.n_trees","quote":"(98)","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":12},"expected":128.404,"origin":"computed","note":"computed from the Table 2 equations (sum of the four components)"},{"inputs":{"D":35,"H":18},"expected":585.38,"origin":"computed","note":"computed from the Table 2 equations (sum of the four components)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value. Total AGB is printed as Wt = sum of the four components (stem wood, stem bark, branches, foliage); the expression is that sum of the four printed equations."},{"id":"vargas-larreta-2017-p-strobiformis-branch","source":"vargas-larreta-2017","name":"Pinus strobiformis branch biomass (wood and bark)","output":{"quantity":"branch_biomass"},"expression":"0.01613 * D^1.90578 * H^0.70112","published":{"expression":"0.01613 * d^1.90578 * h^0.70112","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus strobiformis","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":98,"dbh_min_cm":5,"dbh_max_cm":49,"h_min_m":6.3,"h_max_m":26.6,"r2":0.93,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"0.01613d1.90578h0.70112","locator":"Table 2, p. 12"},{"field":"output","quote":"branches (including both wood and bark)","locator":"Section 2.2"},{"field":"fit.r2","quote":"R2 0.93 (cross-validation)","locator":"Table 2, p. 12"},{"field":"fit.n_trees","quote":"(98)","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":12},"expected":27.7809,"origin":"computed","note":"computed from the Table 2 equation"},{"inputs":{"D":35,"H":18},"expected":107.247,"origin":"computed","note":"computed from the Table 2 equation"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value."},{"id":"vargas-larreta-2017-p-strobiformis-foliage","source":"vargas-larreta-2017","name":"Pinus strobiformis foliage biomass","output":{"quantity":"foliage_biomass"},"expression":"0.03886 * D^1.53515 * H^0.31776","published":{"expression":"0.03886 * d^1.53515 * h^0.31776","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus strobiformis","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":98,"dbh_min_cm":5,"dbh_max_cm":49,"h_min_m":6.3,"h_max_m":26.6,"r2":0.72,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"0.03886d1.53515h0.31776","locator":"Table 2, p. 12"},{"field":"output","quote":"foliage (needles/leaves)","locator":"Section 2.2"},{"field":"fit.r2","quote":"R2 0.72 (cross-validation)","locator":"Table 2, p. 12"},{"field":"fit.n_trees","quote":"(98)","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":12},"expected":8.5055,"origin":"computed","note":"computed from the Table 2 equation"},{"inputs":{"D":35,"H":18},"expected":22.8431,"origin":"computed","note":"computed from the Table 2 equation"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value."},{"id":"vargas-larreta-2017-p-teocote-agb","source":"vargas-larreta-2017","name":"Pinus teocote total aboveground biomass","output":{"quantity":"agb"},"expression":"(0.04428 * D^1.8953 * H^0.84674) + (0.00341 * D^1.96215 * H^0.66178) + (0.0051 * D^1.78757 * H^1.12341) + (0.03041 * D^1.78361)","published":{"expression":"(0.04428 * d^1.8953 * h^0.84674) + (0.00341 * d^1.96215 * h^0.66178) + (0.0051 * d^1.78757 * h^1.12341) + (0.03041 * d^1.78361)","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus teocote","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":81,"dbh_min_cm":10,"dbh_max_cm":45,"h_min_m":4.5,"h_max_m":24.7,"r2":0.95,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"Wt = ΣWi","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.04428d1.8953h0.84674","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.00341d1.96215h0.66178","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.0051d1.78757h1.12341","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.03041d1.78361","locator":"Table 2, p. 12"},{"field":"output","quote":"Wt is the total tree AGB (i.e., the sum of all the tree biomass components)","locator":"Section 2.3.1"},{"field":"fit.r2","quote":"R2 0.95 (cross-validation)","locator":"Table 2, p. 12"},{"field":"fit.n_trees","quote":"(81)","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":12},"expected":136.401,"origin":"computed","note":"computed from the Table 2 equations (sum of the four components)"},{"inputs":{"D":35,"H":18},"expected":549.56,"origin":"computed","note":"computed from the Table 2 equations (sum of the four components)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value. Total AGB is printed as Wt = sum of the four components (stem wood, stem bark, branches, foliage); the expression is that sum of the four printed equations."},{"id":"vargas-larreta-2017-p-teocote-branch","source":"vargas-larreta-2017","name":"Pinus teocote branch biomass (wood and bark)","output":{"quantity":"branch_biomass"},"expression":"0.0051 * D^1.78757 * H^1.12341","published":{"expression":"0.0051 * d^1.78757 * h^1.12341","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus teocote","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":81,"dbh_min_cm":10,"dbh_max_cm":45,"h_min_m":4.5,"h_max_m":24.7,"r2":0.93,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"0.0051d1.78757h1.12341","locator":"Table 2, p. 12"},{"field":"output","quote":"branches (including both wood and bark)","locator":"Section 2.2"},{"field":"fit.r2","quote":"R2 0.93 (cross-validation)","locator":"Table 2, p. 12"},{"field":"fit.n_trees","quote":"(81)","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":12},"expected":17.6042,"origin":"computed","note":"computed from the Table 2 equation"},{"inputs":{"D":35,"H":18},"expected":75.4893,"origin":"computed","note":"computed from the Table 2 equation"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value."},{"id":"vargas-larreta-2017-p-teocote-foliage","source":"vargas-larreta-2017","name":"Pinus teocote foliage biomass","output":{"quantity":"foliage_biomass"},"expression":"0.03041 * D^1.78361","published":{"expression":"0.03041 * d^1.78361","units":{"d":"cm"},"variables":{"d":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus teocote","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":81,"dbh_min_cm":10,"dbh_max_cm":45,"h_min_m":4.5,"h_max_m":24.7,"r2":0.73,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"0.03041d1.78361","locator":"Table 2, p. 12"},{"field":"output","quote":"foliage (needles/leaves)","locator":"Section 2.2"},{"field":"fit.r2","quote":"R2 0.73 (cross-validation)","locator":"Table 2, p. 12"},{"field":"fit.n_trees","quote":"(81)","locator":"Table 1"}],"check":[{"inputs":{"D":20},"expected":6.36131,"origin":"computed","note":"computed from the Table 2 equation"},{"inputs":{"D":35},"expected":17.2596,"origin":"computed","note":"computed from the Table 2 equation"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value."},{"id":"vargas-larreta-2017-q-crassifolia-agb","source":"vargas-larreta-2017","name":"Quercus crassifolia total aboveground biomass","output":{"quantity":"agb"},"expression":"(0.02542 * D^2 * H) + (0.00305 * D^2 * H) + (0.01113 * D^2 * H) + (0.00165 * D^2 * H)","published":{"expression":"(0.02542 * d^2 * h) + (0.00305 * d^2 * h) + (0.01113 * d^2 * h) + (0.00165 * d^2 * h)","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus crassifolia","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":108,"dbh_min_cm":8.5,"dbh_max_cm":43.1,"h_min_m":6,"h_max_m":18.8,"r2":0.91,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"Wt = ΣWi","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.02542d2h","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.00305d2h","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.01113d2h","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.00165d2h","locator":"Table 2, p. 12"},{"field":"output","quote":"Wt is the total tree AGB (i.e., the sum of all the tree biomass components)","locator":"Section 2.3.1"},{"field":"fit.r2","quote":"R2 0.91 (cross-validation)","locator":"Table 2, p. 12"},{"field":"fit.n_trees","quote":"(108)","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":12},"expected":198,"origin":"computed","note":"computed from the Table 2 equations (sum of the four components)"},{"inputs":{"D":35,"H":18},"expected":909.562,"origin":"computed","note":"computed from the Table 2 equations (sum of the four components)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value. Total AGB is printed as Wt = sum of the four components (stem wood, stem bark, branches, foliage); the expression is that sum of the four printed equations."},{"id":"vargas-larreta-2017-q-crassifolia-branch","source":"vargas-larreta-2017","name":"Quercus crassifolia branch biomass (wood and bark)","output":{"quantity":"branch_biomass"},"expression":"0.01113 * D^2 * H","published":{"expression":"0.01113 * d^2 * h","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus crassifolia","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":108,"dbh_min_cm":8.5,"dbh_max_cm":43.1,"h_min_m":6,"h_max_m":18.8,"r2":0.82,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"0.01113d2h","locator":"Table 2, p. 12"},{"field":"output","quote":"branches (including both wood and bark)","locator":"Section 2.2"},{"field":"fit.r2","quote":"R2 0.82 (cross-validation)","locator":"Table 2, p. 12"},{"field":"fit.n_trees","quote":"(108)","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":12},"expected":53.424,"origin":"computed","note":"computed from the Table 2 equation"},{"inputs":{"D":35,"H":18},"expected":245.416,"origin":"computed","note":"computed from the Table 2 equation"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value."},{"id":"vargas-larreta-2017-q-crassifolia-foliage","source":"vargas-larreta-2017","name":"Quercus crassifolia foliage biomass","output":{"quantity":"foliage_biomass"},"expression":"0.00165 * D^2 * H","published":{"expression":"0.00165 * d^2 * h","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus crassifolia","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":108,"dbh_min_cm":8.5,"dbh_max_cm":43.1,"h_min_m":6,"h_max_m":18.8,"r2":0.64,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"0.00165d2h","locator":"Table 2, p. 12"},{"field":"output","quote":"foliage (needles/leaves)","locator":"Section 2.2"},{"field":"fit.r2","quote":"R2 0.64 (cross-validation)","locator":"Table 2, p. 12"},{"field":"fit.n_trees","quote":"(108)","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":12},"expected":7.92,"origin":"computed","note":"computed from the Table 2 equation"},{"inputs":{"D":35,"H":18},"expected":36.3825,"origin":"computed","note":"computed from the Table 2 equation"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value."},{"id":"vargas-larreta-2017-q-durifolia-agb","source":"vargas-larreta-2017","name":"Quercus durifolia total aboveground biomass","output":{"quantity":"agb"},"expression":"(0.1254 * D^1.7402 * H^0.8114) + (0.00235 * D^2.30073 * H^0.68619) + (0.00355 * D^2.66464 * H^0.56009) + (0.0073 * D^2.05034 * H^0.48685)","published":{"expression":"(0.1254 * d^1.7402 * h^0.8114) + (0.00235 * d^2.30073 * h^0.68619) + (0.00355 * d^2.66464 * h^0.56009) + (0.0073 * d^2.05034 * h^0.48685)","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus durifolia","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":131,"dbh_min_cm":7,"dbh_max_cm":45.5,"h_min_m":5.4,"h_max_m":22.1,"r2":0.95,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"Wt = ΣWi","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.1254d1.7402h0.8114","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.00235d2.30073h0.68619","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.00355d2.66464h0.56009","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.0073d2.05034h0.48685","locator":"Table 2, p. 12"},{"field":"output","quote":"Wt is the total tree AGB (i.e., the sum of all the tree biomass components)","locator":"Section 2.3.1"},{"field":"fit.r2","quote":"R2 0.95 (cross-validation)","locator":"Table 2, p. 12"},{"field":"fit.n_trees","quote":"(131)","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":12},"expected":238.922,"origin":"computed","note":"computed from the Table 2 equations (sum of the four components)"},{"inputs":{"D":35,"H":18},"expected":974.319,"origin":"computed","note":"computed from the Table 2 equations (sum of the four components)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value. Total AGB is printed as Wt = sum of the four components (stem wood, stem bark, branches, foliage); the expression is that sum of the four printed equations."},{"id":"vargas-larreta-2017-q-durifolia-branch","source":"vargas-larreta-2017","name":"Quercus durifolia branch biomass (wood and bark)","output":{"quantity":"branch_biomass"},"expression":"0.00355 * D^2.66464 * H^0.56009","published":{"expression":"0.00355 * d^2.66464 * h^0.56009","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus durifolia","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":131,"dbh_min_cm":7,"dbh_max_cm":45.5,"h_min_m":5.4,"h_max_m":22.1,"r2":0.89,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"0.00355d2.66464h0.56009","locator":"Table 2, p. 12"},{"field":"output","quote":"branches (including both wood and bark)","locator":"Section 2.2"},{"field":"fit.r2","quote":"R2 0.89 (cross-validation)","locator":"Table 2, p. 12"},{"field":"fit.n_trees","quote":"(131)","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":12},"expected":41.8257,"origin":"computed","note":"computed from the Table 2 equation"},{"inputs":{"D":35,"H":18},"expected":233.174,"origin":"computed","note":"computed from the Table 2 equation"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value."},{"id":"vargas-larreta-2017-q-durifolia-foliage","source":"vargas-larreta-2017","name":"Quercus durifolia foliage biomass","output":{"quantity":"foliage_biomass"},"expression":"0.0073 * D^2.05034 * H^0.48685","published":{"expression":"0.0073 * d^2.05034 * h^0.48685","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus durifolia","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":131,"dbh_min_cm":7,"dbh_max_cm":45.5,"h_min_m":5.4,"h_max_m":22.1,"r2":0.86,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"0.0073d2.05034h0.48685","locator":"Table 2, p. 12"},{"field":"output","quote":"foliage (needles/leaves)","locator":"Section 2.2"},{"field":"fit.r2","quote":"R2 0.86 (cross-validation)","locator":"Table 2, p. 12"},{"field":"fit.n_trees","quote":"(131)","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":12},"expected":11.3835,"origin":"computed","note":"computed from the Table 2 equation"},{"inputs":{"D":35,"H":18},"expected":43.6834,"origin":"computed","note":"computed from the Table 2 equation"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value."},{"id":"vargas-larreta-2017-q-rugosa-agb","source":"vargas-larreta-2017","name":"Quercus rugosa total aboveground biomass","output":{"quantity":"agb"},"expression":"(0.01988 * D^2.28684 * H^0.52175) + (0.05621 * D^2.0764) + (0.11276 * D^1.52164 * H^0.53343) + (0.0377 * D^1.42193 * H^0.70675)","published":{"expression":"(0.01988 * d^2.28684 * h^0.52175) + (0.05621 * d^2.0764) + (0.11276 * d^1.52164 * h^0.53343) + (0.0377 * d^1.42193 * h^0.70675)","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus rugosa","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":61,"dbh_min_cm":9.3,"dbh_max_cm":41.3,"h_min_m":3.3,"h_max_m":20.2,"r2":0.94,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"Wt = ΣWi","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.01988d2.28684h0.52175","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.05621d2.0764","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.11276d1.52164h0.53343","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.0377d1.42193h0.70675","locator":"Table 2, p. 12"},{"field":"output","quote":"Wt is the total tree AGB (i.e., the sum of all the tree biomass components)","locator":"Section 2.3.1"},{"field":"fit.r2","quote":"R2 0.94 (cross-validation)","locator":"Table 2, p. 12"},{"field":"fit.n_trees","quote":"(61)","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":12},"expected":152.89,"origin":"computed","note":"computed from the Table 2 equations (sum of the four components)"},{"inputs":{"D":35,"H":18},"expected":558.856,"origin":"computed","note":"computed from the Table 2 equations (sum of the four components)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value. Total AGB is printed as Wt = sum of the four components (stem wood, stem bark, branches, foliage); the expression is that sum of the four printed equations."},{"id":"vargas-larreta-2017-q-rugosa-branch","source":"vargas-larreta-2017","name":"Quercus rugosa branch biomass (wood and bark)","output":{"quantity":"branch_biomass"},"expression":"0.11276 * D^1.52164 * H^0.53343","published":{"expression":"0.11276 * d^1.52164 * h^0.53343","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus rugosa","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":61,"dbh_min_cm":9.3,"dbh_max_cm":41.3,"h_min_m":3.3,"h_max_m":20.2,"r2":0.86,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"0.11276d1.52164h0.53343","locator":"Table 2, p. 12"},{"field":"output","quote":"branches (including both wood and bark)","locator":"Section 2.2"},{"field":"fit.r2","quote":"R2 0.86 (cross-validation)","locator":"Table 2, p. 12"},{"field":"fit.n_trees","quote":"(61)","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":12},"expected":40.5062,"origin":"computed","note":"computed from the Table 2 equation"},{"inputs":{"D":35,"H":18},"expected":117.834,"origin":"computed","note":"computed from the Table 2 equation"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value."},{"id":"vargas-larreta-2017-q-rugosa-foliage","source":"vargas-larreta-2017","name":"Quercus rugosa foliage biomass","output":{"quantity":"foliage_biomass"},"expression":"0.0377 * D^1.42193 * H^0.70675","published":{"expression":"0.0377 * d^1.42193 * h^0.70675","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus rugosa","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":61,"dbh_min_cm":9.3,"dbh_max_cm":41.3,"h_min_m":3.3,"h_max_m":20.2,"r2":0.84,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"0.0377d1.42193h0.70675","locator":"Table 2, p. 12"},{"field":"output","quote":"foliage (needles/leaves)","locator":"Section 2.2"},{"field":"fit.r2","quote":"R2 0.84 (cross-validation)","locator":"Table 2, p. 12"},{"field":"fit.n_trees","quote":"(61)","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":12},"expected":15.4535,"origin":"computed","note":"computed from the Table 2 equation"},{"inputs":{"D":35,"H":18},"expected":45.6102,"origin":"computed","note":"computed from the Table 2 equation"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value."},{"id":"vargas-larreta-2017-q-sideroxyla-agb","source":"vargas-larreta-2017","name":"Quercus sideroxyla total aboveground biomass","output":{"quantity":"agb"},"expression":"(0.033462 * D^1.739234 * H^1.111268) + (0.03022 * D^1.66927 * H^0.80238) + (0.005154 * D^1.92033 * H^1.06618) + (0.00092 * D^1.57684 * H^1.34236)","published":{"expression":"(0.033462 * d^1.739234 * h^1.111268) + (0.03022 * d^1.66927 * h^0.80238) + (0.005154 * d^1.92033 * h^1.06618) + (0.00092 * d^1.57684 * h^1.34236)","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus sideroxyla","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":123,"dbh_min_cm":11,"dbh_max_cm":57,"h_min_m":6.3,"h_max_m":24.8,"r2":0.92,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"Wt = ΣWi","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.033462d1.739234h1.111268","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.03022d1.66927h0.80238","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.005154d1.92033h1.06618","locator":"Table 2, p. 12"},{"field":"expression","quote":"0.00092d1.57684h1.34236","locator":"Table 2, p. 12"},{"field":"output","quote":"Wt is the total tree AGB (i.e., the sum of all the tree biomass components)","locator":"Section 2.3.1"},{"field":"fit.r2","quote":"R2 0.92 (cross-validation)","locator":"Table 2, p. 12"},{"field":"fit.n_trees","quote":"(123)","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":12},"expected":155.803,"origin":"computed","note":"computed from the Table 2 equations (sum of the four components)"},{"inputs":{"D":35,"H":18},"expected":634.627,"origin":"computed","note":"computed from the Table 2 equations (sum of the four components)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value. Total AGB is printed as Wt = sum of the four components (stem wood, stem bark, branches, foliage); the expression is that sum of the four printed equations."},{"id":"vargas-larreta-2017-q-sideroxyla-branch","source":"vargas-larreta-2017","name":"Quercus sideroxyla branch biomass (wood and bark)","output":{"quantity":"branch_biomass"},"expression":"0.005154 * D^1.92033 * H^1.06618","published":{"expression":"0.005154 * d^1.92033 * h^1.06618","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus sideroxyla","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":123,"dbh_min_cm":11,"dbh_max_cm":57,"h_min_m":6.3,"h_max_m":24.8,"r2":0.8,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"0.005154d1.92033h1.06618","locator":"Table 2, p. 12"},{"field":"output","quote":"branches (including both wood and bark)","locator":"Section 2.2"},{"field":"fit.r2","quote":"R2 0.80 (cross-validation)","locator":"Table 2, p. 12"},{"field":"fit.n_trees","quote":"(123)","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":12},"expected":22.9696,"origin":"computed","note":"computed from the Table 2 equation"},{"inputs":{"D":35,"H":18},"expected":103.66,"origin":"computed","note":"computed from the Table 2 equation"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value."},{"id":"vargas-larreta-2017-q-sideroxyla-foliage","source":"vargas-larreta-2017","name":"Quercus sideroxyla foliage biomass","output":{"quantity":"foliage_biomass"},"expression":"0.00092 * D^1.57684 * H^1.34236","published":{"expression":"0.00092 * d^1.57684 * h^1.34236","units":{"d":"cm","h":"m"},"variables":{"d":"D","h":"H"},"output_unit":"kg"},"taxon":{"level":"species","name":"Quercus sideroxyla","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["MX"],"place":"Durango, Sierra Madre Occidental","biomes":["temperate","montane"]},"stand":"natural","fit":{"n_trees":123,"dbh_min_cm":11,"dbh_max_cm":57,"h_min_m":6.3,"h_max_m":24.8,"r2":0.74,"method":"Power-law component equations fitted simultaneously by generalized method of moments (additive system)"},"evidence":[{"field":"expression","quote":"0.00092d1.57684h1.34236","locator":"Table 2, p. 12"},{"field":"output","quote":"foliage (needles/leaves)","locator":"Section 2.2"},{"field":"fit.r2","quote":"R2 0.74 (cross-validation)","locator":"Table 2, p. 12"},{"field":"fit.n_trees","quote":"(123)","locator":"Table 1"}],"check":[{"inputs":{"D":20,"H":12},"expected":2.91041,"origin":"computed","note":"computed from the Table 2 equation"},{"inputs":{"D":35,"H":18},"expected":12.1217,"origin":"computed","note":"computed from the Table 2 equation"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value."},{"id":"wang-2017-dry-agb-d","source":"wang-2017","name":"Pinus radiata total tree dry weight from DBHOB (Eq. 6, Table 4)","output":{"quantity":"agb"},"expression":"0.2761 * D^2.0817 + 0.0386 * D^2.1674","published":{"expression":"0.2761 * DBHOB^2.0817 + 0.0386 * DBHOB^2.1674","units":{"DBHOB":"cm"},"variables":{"DBHOB":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus radiata","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["AU"],"place":"Bathurst management area, central west slopes of New South Wales","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":239,"dbh_min_cm":18,"dbh_max_cm":70.1,"h_min_m":18.1,"h_max_m":37.3,"r2":0.93,"method":"system of additive nonlinear equations (product + residue), GMM"},"evidence":[{"field":"expression","quote":"Equation (6), Ŷprod = β10 D^β11, Ŷres = β20 D^β21; dry weight β10 0.2761, β11 2.0817, β20 0.0386, β21 2.1674","locator":"Table 4, dry weight columns"},{"field":"expression","quote":"the predicted value of total tree biomass is equal to the sum of the predicted values of its components","locator":"Table 4 caption"},{"field":"fit.n_trees","quote":"a total of 239 trees, with DBHOB ranging from 18.0 to 70.1 cm and total tree height from 18.1 to 37.3 m, were destructively sampled","locator":"Section 2.3"}],"check":[{"inputs":{"D":20},"expected":166.5595,"origin":"computed","note":"computed from the published form: product plus residue dry weight"},{"inputs":{"D":40},"expected":711.6608,"origin":"computed","note":"computed from the published form: product plus residue dry weight"},{"inputs":{"D":65},"expected":1968.64,"origin":"computed","note":"computed from the published form: product plus residue dry weight"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dry-weight system with DBHOB as the only predictor; R2 for total tree 0.93. Total tree dry weight is the sum of the product (stem sawlog and pulpwood) and residue (stump, branches with needles, waste) equations, so it is aboveground including stump and foliage. DBHOB is diameter at breast height over bark at 1.3 m, in cm; weights in kg (dry). Rotation-age stands, 28 to 42 years, unthinned and thinned pooled. Product and residue equations are not added individually, nor the fresh-weight, stand-type dummy (Equations 9 and 10) or allocative systems. No correction factor is applied."},{"id":"wang-2017-dry-agb-dh","source":"wang-2017","name":"Pinus radiata total tree dry weight from DBHOB and height (Eq. 8, Table 4)","output":{"quantity":"agb"},"expression":"0.0378 * D^1.893 * H^0.788 + 0.0372 * D^2.1755","published":{"expression":"0.0378 * DBHOB^1.893 * H^0.788 + 0.0372 * DBHOB^2.1755","units":{"DBHOB":"cm","H":"m"},"variables":{"DBHOB":"D"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pinus radiata","family":"Pinaceae","group":"conifer"},"region":{"scope":"regional","countries":["AU"],"place":"Bathurst management area, central west slopes of New South Wales","biomes":["temperate"]},"stand":"plantation","fit":{"n_trees":239,"dbh_min_cm":18,"dbh_max_cm":70.1,"h_min_m":18.1,"h_max_m":37.3,"r2":0.94,"method":"system of additive nonlinear equations (product + residue), GMM"},"evidence":[{"field":"expression","quote":"Equation (8), Ŷprod = β10 D^β11 H^β12, Ŷres = β20 D^β21; dry weight β10 0.0378, β11 1.8930, β12 0.7880, β20 0.0372, β21 2.1755","locator":"Table 4, dry weight columns"},{"field":"expression","quote":"the predicted value of total tree biomass is equal to the sum of the predicted values of its components","locator":"Table 4 caption"},{"field":"fit.n_trees","quote":"a total of 239 trees, with DBHOB ranging from 18.0 to 70.1 cm and total tree height from 18.1 to 37.3 m, were destructively sampled","locator":"Section 2.3"}],"check":[{"inputs":{"D":20,"H":20},"expected":141.4658,"origin":"computed","note":"computed from the published form: product plus residue dry weight"},{"inputs":{"D":40,"H":30},"expected":708.2319,"origin":"computed","note":"computed from the published form: product plus residue dry weight"},{"inputs":{"D":65,"H":36},"expected":2047.68,"origin":"computed","note":"computed from the published form: product plus residue dry weight"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Dry-weight system with DBHOB and total height; R2 for total tree 0.94. Total tree dry weight is the sum of the product (stem sawlog and pulpwood) and residue (stump, branches with needles, waste) equations, so it is aboveground including stump and foliage. DBHOB is diameter at breast height over bark at 1.3 m, in cm; weights in kg (dry). Rotation-age stands, 28 to 42 years, unthinned and thinned pooled. Product and residue equations are not added individually, nor the fresh-weight, stand-type dummy (Equations 9 and 10) or allocative systems. No correction factor is applied."},{"id":"wangui-2026-agb-coprosma-robusta-d-h","source":"wangui-2026","name":"Coprosma robusta (all sites): AGB from D and H (Table 7)","output":{"quantity":"agb"},"expression":"1.05 * exp(-3.02 + 1.79 * ln(DRC) + 0.41 * ln(H))","published":{"expression":"1.05 * exp(-3.02 + 1.79 * ln(D) + 0.41 * ln(H))","units":{"D":"cm","H":"m"},"variables":{"D":"DRC"},"output_unit":"kg"},"taxon":{"level":"species","name":"Coprosma robusta","family":"Rubiaceae","group":"shrub"},"region":{"scope":"regional","countries":["NZ"],"place":"Limestone Downs and Massey University sites","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":18,"cf":1.05,"method":"OLS regression on natural logarithms (power form), back-transformed with correction factor CF = exp(RSE^2/2)"},"evidence":[{"field":"expression","quote":"C. robusta All sites ln(AGB) =ln(a)+b×ln(D)+c×ln(H) -3.02**** 1.79**** 0.41** … CF 1.05","locator":"Table 7"},{"field":"fit.cf","quote":"CF = e(RSE²/2) Equation 2; Table 7 CF column 1.05","locator":"Methods, Equation 2; Table 7"}],"check":[{"inputs":{"DRC":2,"H":1},"expected":0.1772,"origin":"computed","note":"computed from the published form (a is ln(a), CF applied, coefficients as printed)"},{"inputs":{"DRC":4,"H":2},"expected":0.8142,"origin":"computed","note":"computed from the published form (a is ln(a), CF applied, coefficients as printed)"},{"inputs":{"DRC":8,"H":3},"expected":3.3248,"origin":"computed","note":"computed from the published form (a is ln(a), CF applied, coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"AGB is the sum of stem, branch and foliage dry biomass of the shrub. Natural log. D is the basal stem diameter over bark about 10 cm above ground (multi-stemmed shrubs: square root of the sum of stem diameters), mapped to DRC; H is total height in m. Table 7 reports adjusted R2 = 0.886 and RMSE = 0.271 (not used as r2 or rse). Shrubs had basal diameter up to 10 cm (mean D 3.4 to 3.8 cm by species, Table 4); the paper prints no D range for these models. The CF column is the factor the paper applies to back-transformed predictions."},{"id":"wangui-2026-agb-coprosma-robusta-massey-d-h","source":"wangui-2026","name":"Coprosma robusta (Massey University): AGB from D and H (Table 7)","output":{"quantity":"agb"},"expression":"1.02 * exp(-3.53 + 2.16 * ln(DRC) + 0.27 * ln(H))","published":{"expression":"1.02 * exp(-3.53 + 2.16 * ln(D) + 0.27 * ln(H))","units":{"D":"cm","H":"m"},"variables":{"D":"DRC"},"output_unit":"kg"},"taxon":{"level":"species","name":"Coprosma robusta","family":"Rubiaceae","group":"shrub"},"region":{"scope":"regional","countries":["NZ"],"place":"Massey University natural reserves and Dairy4 farm trial site","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":6,"cf":1.02,"method":"OLS regression on natural logarithms (power form), back-transformed with correction factor CF = exp(RSE^2/2)"},"evidence":[{"field":"expression","quote":"C. robusta Massey University ln(AGB) =ln (a)+b×ln(D)+c×ln(H) -3.53** 2.16** 0.27 ns … CF 1.02","locator":"Table 7"},{"field":"fit.cf","quote":"CF = e(RSE²/2) Equation 2; Table 7 CF column 1.02","locator":"Methods, Equation 2; Table 7"}],"check":[{"inputs":{"DRC":2,"H":1},"expected":0.1336,"origin":"computed","note":"computed from the published form (a is ln(a), CF applied, coefficients as printed)"},{"inputs":{"DRC":4,"H":2},"expected":0.7199,"origin":"computed","note":"computed from the published form (a is ln(a), CF applied, coefficients as printed)"},{"inputs":{"DRC":8,"H":3},"expected":3.5895,"origin":"computed","note":"computed from the published form (a is ln(a), CF applied, coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"AGB is the sum of stem, branch and foliage dry biomass of the shrub. Natural log. D is the basal stem diameter over bark about 10 cm above ground (multi-stemmed shrubs: square root of the sum of stem diameters), mapped to DRC; H is total height in m. Table 7 reports adjusted R2 = 0.886 and RMSE = 0.132 (not used as r2 or rse). Shrubs had basal diameter up to 10 cm (mean D 3.4 to 3.8 cm by species, Table 4); the paper prints no D range for these models. The CF column is the factor the paper applies to back-transformed predictions."},{"id":"wangui-2026-agb-gen-all-d","source":"wangui-2026","name":"Native shrubs NZ (3 spp, all sites): AGB from D (Table 7)","output":{"quantity":"agb"},"expression":"1.07 * exp(-3.69 + 2.45 * ln(DRC))","published":{"expression":"1.07 * exp(-3.69 + 2.45 * ln(D))","units":{"D":"cm"},"variables":{"D":"DRC"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Coprosma robusta, Pittosporum crassifolium and Melicytus ramiflorus (generalized)","group":"shrub"},"region":{"scope":"regional","countries":["NZ"],"place":"Limestone Downs (Waikato west coast) and Massey University sites, Manawatu-Waikato","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":54,"cf":1.07,"method":"OLS regression on natural logarithms (power form), back-transformed with correction factor CF = exp(RSE^2/2)"},"evidence":[{"field":"expression","quote":"Generalized- All sites ln(AGB) =ln (a)+b×ln(D) -3.69**** 2.45**** … CF 1.07","locator":"Table 7"},{"field":"fit.cf","quote":"CF = e(RSE²/2) Equation 2; Table 7 CF column 1.07","locator":"Methods, Equation 2; Table 7"}],"check":[{"inputs":{"DRC":2},"expected":0.146,"origin":"computed","note":"computed from the published form (a is ln(a), CF applied, coefficients as printed)"},{"inputs":{"DRC":4},"expected":0.7978,"origin":"computed","note":"computed from the published form (a is ln(a), CF applied, coefficients as printed)"},{"inputs":{"DRC":8},"expected":4.3592,"origin":"computed","note":"computed from the published form (a is ln(a), CF applied, coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"AGB is the sum of stem, branch and foliage dry biomass of the shrub. Natural log. D is the basal stem diameter over bark about 10 cm above ground (multi-stemmed shrubs: square root of the sum of stem diameters), mapped to DRC; H is total height in m. Table 7 reports adjusted R2 = 0.881 and RMSE = 0.337 (not used as r2 or rse). Shrubs had basal diameter up to 10 cm (mean D 3.4 to 3.8 cm by species, Table 4); the paper prints no D range for these models. The CF column is the factor the paper applies to back-transformed predictions."},{"id":"wangui-2026-agb-gen-massey-d-h","source":"wangui-2026","name":"Native shrubs NZ (3 spp, Massey University): AGB from D and H (Table 7)","output":{"quantity":"agb"},"expression":"1.05 * exp(-3.57 + 2.18 * ln(DRC) + 0.4 * ln(H))","published":{"expression":"1.05 * exp(-3.57 + 2.18 * ln(D) + 0.4 * ln(H))","units":{"D":"cm","H":"m"},"variables":{"D":"DRC"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Coprosma robusta, Pittosporum crassifolium and Melicytus ramiflorus (generalized)","group":"shrub"},"region":{"scope":"regional","countries":["NZ"],"place":"Massey University natural reserves and Dairy4 farm trial site, Manawatu","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":19,"cf":1.05,"method":"OLS regression on natural logarithms (power form), back-transformed with correction factor CF = exp(RSE^2/2)"},"evidence":[{"field":"expression","quote":"Generalized- Massey University ln(AGB) =ln (a)+b×ln(D)+c×ln(H) -3.57**** 2.18**** 0.40** … CF 1.05","locator":"Table 7"},{"field":"fit.cf","quote":"CF = e(RSE²/2) Equation 2; Table 7 CF column 1.05","locator":"Methods, Equation 2; Table 7"}],"check":[{"inputs":{"DRC":2,"H":1},"expected":0.134,"origin":"computed","note":"computed from the published form (a is ln(a), CF applied, coefficients as printed)"},{"inputs":{"DRC":4,"H":2},"expected":0.8011,"origin":"computed","note":"computed from the published form (a is ln(a), CF applied, coefficients as printed)"},{"inputs":{"DRC":8,"H":3},"expected":4.2692,"origin":"computed","note":"computed from the published form (a is ln(a), CF applied, coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"AGB is the sum of stem, branch and foliage dry biomass of the shrub. Natural log. D is the basal stem diameter over bark about 10 cm above ground (multi-stemmed shrubs: square root of the sum of stem diameters), mapped to DRC; H is total height in m. Table 7 reports adjusted R2 = 0.907 and RMSE = 0.288 (not used as r2 or rse). Shrubs had basal diameter up to 10 cm (mean D 3.4 to 3.8 cm by species, Table 4); the paper prints no D range for these models. The CF column is the factor the paper applies to back-transformed predictions."},{"id":"wangui-2026-agb-melicytus-ramiflorus-ld-d","source":"wangui-2026","name":"Melicytus ramiflorus (Limestone Downs): AGB from D (Table 7)","output":{"quantity":"agb"},"expression":"1.17 * exp(-2.8 + 1.74 * ln(DRC))","published":{"expression":"1.17 * exp(-2.8 + 1.74 * ln(D))","units":{"D":"cm"},"variables":{"D":"DRC"},"output_unit":"kg"},"taxon":{"level":"species","name":"Melicytus ramiflorus","family":"Violaceae","group":"shrub"},"region":{"scope":"regional","countries":["NZ"],"place":"Limestone Downs, Waikato west coast","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":9,"cf":1.17,"method":"OLS regression on natural logarithms (power form), back-transformed with correction factor CF = exp(RSE^2/2)"},"evidence":[{"field":"expression","quote":"M. ramiflorus Limestone Downs ln(AGB) =ln (a)+b×ln(D) -2.80**** 1.74**** … CF 1.17","locator":"Table 7"},{"field":"fit.cf","quote":"CF = e(RSE²/2) Equation 2; Table 7 CF column 1.17","locator":"Methods, Equation 2; Table 7"}],"check":[{"inputs":{"DRC":2},"expected":0.2377,"origin":"computed","note":"computed from the published form (a is ln(a), CF applied, coefficients as printed)"},{"inputs":{"DRC":4},"expected":0.7939,"origin":"computed","note":"computed from the published form (a is ln(a), CF applied, coefficients as printed)"},{"inputs":{"DRC":8},"expected":2.6518,"origin":"computed","note":"computed from the published form (a is ln(a), CF applied, coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"AGB is the sum of stem, branch and foliage dry biomass of the shrub. Natural log. D is the basal stem diameter over bark about 10 cm above ground (multi-stemmed shrubs: square root of the sum of stem diameters), mapped to DRC; H is total height in m. Table 7 reports adjusted R2 = 0.799 and RMSE = 0.488 (not used as r2 or rse). Shrubs had basal diameter up to 10 cm (mean D 3.4 to 3.8 cm by species, Table 4); the paper prints no D range for these models. The CF column is the factor the paper applies to back-transformed predictions."},{"id":"wangui-2026-agb-pittosporum-crassifolium-massey-d-h","source":"wangui-2026","name":"Pittosporum crassifolium (Massey University): AGB from D and H (Table 7)","output":{"quantity":"agb"},"expression":"1.0 * exp(-3.65 + 3.93 * ln(DRC) + -2.4 * ln(H))","published":{"expression":"1.0 * exp(-3.65 + 3.93 * ln(D) + -2.4 * ln(H))","units":{"D":"cm","H":"m"},"variables":{"D":"DRC"},"output_unit":"kg"},"taxon":{"level":"species","name":"Pittosporum crassifolium","family":"Pittosporaceae","group":"shrub"},"region":{"scope":"regional","countries":["NZ"],"place":"Massey University natural reserves and Dairy4 farm trial site","biomes":["temperate"]},"stand":"mixed","fit":{"n_trees":5,"cf":1,"method":"OLS regression on natural logarithms (power form), back-transformed with correction factor CF = exp(RSE^2/2)"},"evidence":[{"field":"expression","quote":"P. crassifolium Massey University ln(AGB) =ln (a)+b×ln(D)+c×ln(H) -3.65*** 3.93** -2.40* … CF 1.00","locator":"Table 7"},{"field":"fit.cf","quote":"CF = e(RSE²/2) Equation 2; Table 7 CF column 1.0","locator":"Methods, Equation 2; Table 7"}],"check":[{"inputs":{"DRC":2,"H":1},"expected":0.3962,"origin":"computed","note":"computed from the published form (a is ln(a), CF applied, coefficients as printed)"},{"inputs":{"DRC":4,"H":2},"expected":1.1441,"origin":"computed","note":"computed from the published form (a is ln(a), CF applied, coefficients as printed)"},{"inputs":{"DRC":8,"H":3},"expected":6.5899,"origin":"computed","note":"computed from the published form (a is ln(a), CF applied, coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"AGB is the sum of stem, branch and foliage dry biomass of the shrub. Natural log. D is the basal stem diameter over bark about 10 cm above ground (multi-stemmed shrubs: square root of the sum of stem diameters), mapped to DRC; H is total height in m. Table 7 reports adjusted R2 = 0.996 and RMSE = 0.038 (not used as r2 or rse). Shrubs had basal diameter up to 10 cm (mean D 3.4 to 3.8 cm by species, Table 4); the paper prints no D range for these models. The CF column is the factor the paper applies to back-transformed predictions."},{"id":"westfall-2024-quercus-alba-m220-large","source":"westfall-2024","name":"NSVB white oak, Hot Continental Mountains (M220), segmented model, D ≥ 11 in (27.94 cm)","output":{"quantity":"agb","excludes":["foliage"]},"expression":"0.45359237 * 0.024470323124 * 11^(1.93799905037 - 1.886819489967) * (D/2.54)^1.886819489967 * (H/0.3048)^1.403264431619","published":{"expression":"0.024470323124 * 11^(1.93799905037 - 1.886819489967) * DBH^1.886819489967 * HT^1.403264431619","units":{"DBH":"in","HT":"ft"},"variables":{"DBH":"D","HT":"H"},"output_unit":"lb"},"taxon":{"level":"species","name":"Quercus alba","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["US"],"place":"FIA ecodivision M220, Hot Continental Mountains (Appalachian/Ozark highlands)","biomes":["temperate","montane"]},"stand":"mixed","fit":{"dbh_min_cm":27.94,"method":"NSVB segmented model (Eq. 2), coefficients for SPCD 802 in DIVISION M220 from table S8a, as printed in Example 4; nonlinear fit to destructively sampled legacy and new tree data"},"evidence":[{"field":"expression","quote":"AGBPredicted = 0.024470323124 × 11^(1.93799905037 – 1.886819489967) × 18.1^1.886819489967 × 65^1.403264431619 = 2285.319903933610","locator":"Example 4, p. 24"},{"field":"taxon","quote":"a live white oak (Quercus alba; SPCD = 802) tree having D = 18.1 inches, H = 65 feet","locator":"Example 4, p. 21"},{"field":"region","quote":"growing in the Hot Continental Mountains (DIVISION = M220)","locator":"Example 4, p. 21"},{"field":"expression","quote":"k is a set segmentation point that is 9.0 inches for softwoods (SPCD<300) and 11.0 inches for hardwoods (SPCD≥300)","locator":"Methods, Model development, p. 2"},{"field":"published.units","quote":"Di is diameter (inches) at breast height (4.5 feet), Hi is total tree height (feet)","locator":"Methods, p. 2"},{"field":"expression","quote":"yi = a × k^(b−b1) × Di^b1 × Hi^c + εi; Di ≥ k","locator":"Eq. 2, p. 2"}],"check":[{"inputs":{"D":45.974,"H":19.812},"expected":1036.6037,"origin":"published","note":"Example 4 (p. 24) prints AGBPredicted = 2285.319903933610 lb for D = 18.1 in, H = 65 ft; inputs and expected converted to cm, m, kg"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Upper branch of the segmented model (valid for D ≥ 11 in = 27.94 cm); pair with westfall-2024-quercus-alba-m220-small below that. dbh_min_cm is the segmentation point, not a data range. Output is gross AGB excluding foliage, before NSVB's cull/broken-top reductions and harmonization with stem/bark/branch components. Coefficients are those printed in the GTR's worked example; other ecodivisions use different coefficients (table S8a). Paper units: in, ft, lb; expression converts D cm→in (/2.54), H m→ft (/0.3048) and lb→kg (×0.45359237)."},{"id":"westfall-2024-quercus-alba-m220-small","source":"westfall-2024","name":"NSVB white oak, Hot Continental Mountains (M220), segmented model, D < 11 in (27.94 cm)","output":{"quantity":"agb","excludes":["foliage"]},"expression":"0.45359237 * 0.024470323124 * (D/2.54)^1.93799905037 * (H/0.3048)^1.403264431619","published":{"expression":"0.024470323124 * DBH^1.93799905037 * HT^1.403264431619","units":{"DBH":"in","HT":"ft"},"variables":{"DBH":"D","HT":"H"},"output_unit":"lb"},"taxon":{"level":"species","name":"Quercus alba","family":"Fagaceae","group":"broadleaf"},"region":{"scope":"regional","countries":["US"],"place":"FIA ecodivision M220, Hot Continental Mountains (Appalachian/Ozark highlands)","biomes":["temperate","montane"]},"stand":"mixed","fit":{"dbh_max_cm":27.94,"method":"NSVB segmented model (Eq. 2), lower branch; same coefficients a, b, c as printed in Example 4"},"evidence":[{"field":"expression","quote":"AGBPredicted = 0.024470323124 × 11^(1.93799905037 – 1.886819489967) × 18.1^1.886819489967 × 65^1.403264431619 = 2285.319903933610","locator":"Example 4, p. 24"},{"field":"taxon","quote":"a live white oak (Quercus alba; SPCD = 802) tree having D = 18.1 inches, H = 65 feet","locator":"Example 4, p. 21"},{"field":"region","quote":"growing in the Hot Continental Mountains (DIVISION = M220)","locator":"Example 4, p. 21"},{"field":"expression","quote":"k is a set segmentation point that is 9.0 inches for softwoods (SPCD<300) and 11.0 inches for hardwoods (SPCD≥300)","locator":"Methods, Model development, p. 2"},{"field":"published.units","quote":"Di is diameter (inches) at breast height (4.5 feet), Hi is total tree height (feet)","locator":"Methods, p. 2"},{"field":"expression","quote":"yi = a × Di^b × Hi^c + εi; Di < k","locator":"Eq. 2, p. 2"}],"check":[{"inputs":{"D":20.32,"H":15.24},"expected":151.2158,"origin":"computed","note":"computed from the published form at D = 8 in (20.32 cm), H = 50 ft (15.24 m), converted lb→kg"}],"verification":"original_read","checked_at":"2026-11-01","notes":"Lower branch of the segmented model (D < 11 in = 27.94 cm). The GTR does not print a worked value for this branch; the check is computed. a, b and c are the values printed in Example 4 (b = 1.93799905037 is the exponent inside k^(b−b1)). dbh_max_cm is the segmentation point, not a data range. Same output definition and unit conversions as the large-tree branch."},{"id":"wirabuana-2025-h-linear","source":"wirabuana-2025","name":"Shorea assamica height from D, Linear model (Table 4)","output":{"quantity":"height"},"expression":"6.97 + 0.23 * D","published":{"expression":"6.97 + 0.23 * DBH","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m"},"taxon":{"level":"species","name":"Shorea assamica","family":"Dipterocarpaceae","group":"broadleaf"},"region":{"scope":"site","countries":["ID"],"place":"Tabalong District, South Kalimantan (PT Aya Yayang Indonesia concession, secondary lowland dipterocarp forest)","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":1009,"dbh_min_cm":20,"dbh_max_cm":67,"h_min_m":11,"h_max_m":28,"r2":0.72,"method":"nonlinear least squares height-diameter model, fitted on 1009 of 1440 trees"},"evidence":[{"field":"expression","quote":"Linear H = a + b.DBH; a = 6.97, b = 0.23","locator":"Table 1 and Table 4, Linear row"},{"field":"fit.n_trees","quote":"1009 tree height and diameter datasets were utilized","locator":"Section 3.1"},{"field":"fit.r2","quote":"R2 0.72","locator":"Table 4"}],"check":[{"inputs":{"D":25},"expected":12.72,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":40},"expected":16.17,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":60},"expected":20.77,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Fitted on the 70% model-development subset (1009 trees); DBH and height ranges are that subset (Table 3). Only trees with DBH >= 20 cm were recorded. Coefficients are printed to two decimals. The paper also lists Exponential and Gompertz models (Table 4) that were not added: the Exponential b is printed as 0.01 (too coarse to reproduce the fit) and the Gompertz coefficients as printed (a=152.37, b=0.01, c=170.49) do not give a sensible curve."},{"id":"wirabuana-2025-h-power","source":"wirabuana-2025","name":"Shorea assamica height from D, Power model (best fit, Table 4)","output":{"quantity":"height"},"expression":"2.11 * D^0.55","published":{"expression":"2.11 * DBH^0.55","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m"},"taxon":{"level":"species","name":"Shorea assamica","family":"Dipterocarpaceae","group":"broadleaf"},"region":{"scope":"site","countries":["ID"],"place":"Tabalong District, South Kalimantan (PT Aya Yayang Indonesia concession, secondary lowland dipterocarp forest)","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":1009,"dbh_min_cm":20,"dbh_max_cm":67,"h_min_m":11,"h_max_m":28,"r2":0.74,"method":"nonlinear least squares height-diameter model, fitted on 1009 of 1440 trees"},"evidence":[{"field":"expression","quote":"Power H = a.DBH^b; a = 2.11, b = 0.55","locator":"Table 1 and Table 4, Power row"},{"field":"fit.n_trees","quote":"1009 tree height and diameter datasets were utilized","locator":"Section 3.1"},{"field":"fit.r2","quote":"R2 0.74","locator":"Table 4"}],"check":[{"inputs":{"D":25},"expected":12.3922,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":40},"expected":16.0478,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":60},"expected":20.057,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Selected by the authors as the best-fit model. Fitted on the 70% model-development subset (1009 trees); DBH and height ranges are that subset (Table 3). Only trees with DBH >= 20 cm were recorded. Coefficients are printed to two decimals. The paper also lists Exponential and Gompertz models (Table 4) that were not added: the Exponential b is printed as 0.01 (too coarse to reproduce the fit) and the Gompertz coefficients as printed (a=152.37, b=0.01, c=170.49) do not give a sensible curve."},{"id":"wirabuana-2025-h-sigmoid","source":"wirabuana-2025","name":"Shorea assamica height from D, Sigmoid model (Table 4)","output":{"quantity":"height"},"expression":"exp(3.28 - 18.89 / D)","published":{"expression":"exp(3.28 - 18.89 / DBH)","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"m"},"taxon":{"level":"species","name":"Shorea assamica","family":"Dipterocarpaceae","group":"broadleaf"},"region":{"scope":"site","countries":["ID"],"place":"Tabalong District, South Kalimantan (PT Aya Yayang Indonesia concession, secondary lowland dipterocarp forest)","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":1009,"dbh_min_cm":20,"dbh_max_cm":67,"h_min_m":11,"h_max_m":28,"r2":0.69,"method":"nonlinear least squares height-diameter model, fitted on 1009 of 1440 trees"},"evidence":[{"field":"expression","quote":"Sigmoid H = e^(a + b/DBH); a = 3.28, b = -18.89","locator":"Table 1 and Table 4, Sigmoid row"},{"field":"fit.n_trees","quote":"1009 tree height and diameter datasets were utilized","locator":"Section 3.1"},{"field":"fit.r2","quote":"R2 0.69","locator":"Table 4"}],"check":[{"inputs":{"D":25},"expected":12.4834,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":40},"expected":16.5726,"origin":"computed","note":"computed from the published form (coefficients as printed)"},{"inputs":{"D":60},"expected":19.3979,"origin":"computed","note":"computed from the published form (coefficients as printed)"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Sigmoid form H = exp(a + b/DBH) as printed in Table 1 (typeset with b/DBH in the exponent). Fitted on the 70% model-development subset (1009 trees); DBH and height ranges are that subset (Table 3). Only trees with DBH >= 20 cm were recorded. Coefficients are printed to two decimals. The paper also lists Exponential and Gompertz models (Table 4) that were not added: the Exponential b is printed as 0.01 (too coarse to reproduce the fit) and the Gompertz coefficients as printed (a=152.37, b=0.01, c=170.49) do not give a sensible curve."},{"id":"xu-2015-bgb-d","source":"xu-2015","name":"Subtropical China root biomass from D","output":{"quantity":"bgb"},"expression":"exp(-2.80346 + 2.0441 * ln(D))","published":{"expression":"exp(-2.80346 + 2.0441 * ln(D))","units":{"D":"cm"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"8 subtropical forest tree species (23 root systems)","group":"mixed"},"region":{"scope":"site","countries":["CN"],"place":"Badagongshan National Nature Reserve, Hunan province","biomes":["subtropical","montane"]},"stand":"natural","fit":{"n_trees":23,"r2":0.9241,"rse":0.3437,"method":"Bayesian log-log regression (MCMC)"},"evidence":[{"field":"expression","quote":"BGB = exp(−2.80346 + 2.0441ln(D))","locator":"BGB models with diameter, p. 8"}],"check":[{"inputs":{"D":10},"expected":6.7077,"origin":"computed","note":"computed from the printed coefficients"},{"inputs":{"D":30},"expected":63.366,"origin":"computed","note":"computed from the printed coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Log-log model fitted by Bayesian MCMC; no correction factor is stated, so none is applied. Natural log assumed from the paper's ln notation. Wood density WD is in g cm-3 (Table 2; the running text says g/m3). Whole-tree AGB includes branches, leaves and fruit. Fitted on 23 excavated root systems of eight species (large roots, small roots and stump). The residual standard error given is 0.3437 on the log scale and R² is 0.9241."},{"id":"xu-2015-i1-dhwd","source":"xu-2015","name":"Subtropical China AGB from D, H and wood density (Model I.1)","output":{"quantity":"agb"},"expression":"exp(-2.334 + 2.118 * ln(D) + 0.5436 * ln(H) + 0.5953 * ln(rho))","published":{"expression":"exp(-2.334 + 2.118 * ln(D) + 0.5436 * ln(H) + 0.5953 * ln(WD))","units":{"D":"cm","H":"m","WD":"g/cm3"},"variables":{"WD":"rho"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"41 subtropical forest tree species (Fagus lucida, Castanea seguinii, Carpinus viminea and others)","group":"mixed"},"region":{"scope":"site","countries":["CN"],"place":"Badagongshan National Nature Reserve, Hunan province","biomes":["subtropical","montane"]},"stand":"natural","fit":{"n_trees":147,"r2":0.95,"rse":0.173,"method":"Bayesian log-log regression (MCMC)"},"evidence":[{"field":"expression","quote":"AGB = exp(−2.334 + 2.118ln(D) + 0.5436ln(H) + 0.5953ln(WD))","locator":"Recommended model when height is available, p. 7 (Table 2, model I.1)"},{"field":"fit.r2","quote":"I.1 R² 0.950 RSE 0.173","locator":"Table 3, model I.1 (R2 and RSE columns)"},{"field":"fit.n_trees","quote":"we harvested and weighted dry mass of 147 trees from 41 dominant species in subtropical forest","locator":"Abstract"}],"check":[{"inputs":{"D":20,"H":14,"rho":0.57},"expected":165.8234,"origin":"computed","note":"computed from the printed coefficients"},{"inputs":{"D":40,"H":20,"rho":0.6},"expected":900.9342,"origin":"computed","note":"computed from the printed coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Log-log model fitted by Bayesian MCMC; no correction factor is stated, so none is applied. Natural log assumed from the paper's ln notation. Wood density WD is in g cm-3 (Table 2; the running text says g/m3). Whole-tree AGB includes branches, leaves and fruit. Recommended by the authors when height is available. Coefficients are the more precise values printed in the recommended-model equation (Table 2 gives -2.334, 2.118, 0.544, 0.595)."},{"id":"xu-2015-i2-d2hwd","source":"xu-2015","name":"Subtropical China AGB from D²H and wood density (Model I.2)","output":{"quantity":"agb"},"expression":"exp(-2.672 + 0.944 * ln(D^2 * H) + 0.615 * ln(rho))","published":{"expression":"exp(-2.672 + 0.944 * ln(D^2 * H) + 0.615 * ln(WD))","units":{"D":"cm","H":"m","WD":"g/cm3"},"variables":{"WD":"rho"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"41 subtropical forest tree species (Fagus lucida, Castanea seguinii, Carpinus viminea and others)","group":"mixed"},"region":{"scope":"site","countries":["CN"],"place":"Badagongshan National Nature Reserve, Hunan province","biomes":["subtropical","montane"]},"stand":"natural","fit":{"n_trees":147,"r2":0.939,"rse":0.193,"method":"Bayesian log-log regression (MCMC)"},"evidence":[{"field":"expression","quote":"I.2 ln(AGB) = a + bln(D²H) + cln(WD) −2.672 0.944 0.615","locator":"Table 2, model I.2"},{"field":"fit.r2","quote":"I.2 R² 0.939 RSE 0.193","locator":"Table 3, model I.2 (R2 and RSE columns)"},{"field":"fit.n_trees","quote":"we harvested and weighted dry mass of 147 trees from 41 dominant species in subtropical forest","locator":"Abstract"}],"check":[{"inputs":{"D":20,"H":14,"rho":0.57},"expected":168.9342,"origin":"computed","note":"computed from the printed coefficients"},{"inputs":{"D":40,"H":20,"rho":0.6},"expected":903.6281,"origin":"computed","note":"computed from the printed coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Log-log model fitted by Bayesian MCMC; no correction factor is stated, so none is applied. Natural log assumed from the paper's ln notation. Wood density WD is in g cm-3 (Table 2; the running text says g/m3). Whole-tree AGB includes branches, leaves and fruit."},{"id":"xu-2015-i3-d2hxwd","source":"xu-2015","name":"Subtropical China AGB from D²H x wood density (Model I.3)","output":{"quantity":"agb"},"expression":"exp(-2.456 + 0.939 * ln(D^2 * H * rho))","published":{"expression":"exp(-2.456 + 0.939 * ln(D^2 * H * WD))","units":{"D":"cm","H":"m","WD":"g/cm3"},"variables":{"WD":"rho"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"41 subtropical forest tree species (Fagus lucida, Castanea seguinii, Carpinus viminea and others)","group":"mixed"},"region":{"scope":"site","countries":["CN"],"place":"Badagongshan National Nature Reserve, Hunan province","biomes":["subtropical","montane"]},"stand":"natural","fit":{"n_trees":147,"r2":0.987,"rse":0.197,"method":"Bayesian log-log regression (MCMC)"},"evidence":[{"field":"expression","quote":"I.3 ln(AGB) = a + bln(D²H × WD) −2.456 0.939","locator":"Table 2, model I.3"},{"field":"fit.r2","quote":"I.3 R² 0.987 RSE 0.197","locator":"Table 3, model I.3 (R2 and RSE columns)"},{"field":"fit.n_trees","quote":"we harvested and weighted dry mass of 147 trees from 41 dominant species in subtropical forest","locator":"Abstract"}],"check":[{"inputs":{"D":20,"H":14,"rho":0.57},"expected":167.3739,"origin":"computed","note":"computed from the printed coefficients"},{"inputs":{"D":40,"H":20,"rho":0.6},"expected":902.3865,"origin":"computed","note":"computed from the printed coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Log-log model fitted by Bayesian MCMC; no correction factor is stated, so none is applied. Natural log assumed from the paper's ln notation. Wood density WD is in g cm-3 (Table 2; the running text says g/m3). Whole-tree AGB includes branches, leaves and fruit."},{"id":"xu-2015-i4-dwd","source":"xu-2015","name":"Subtropical China AGB from D and wood density (Model I.4)","output":{"quantity":"agb"},"expression":"exp(-1.8226 + 2.4105 * ln(D) + 0.5781 * ln(rho))","published":{"expression":"exp(-1.8226 + 2.4105 * ln(D) + 0.5781 * ln(WD))","units":{"D":"cm","WD":"g/cm3"},"variables":{"WD":"rho"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"41 subtropical forest tree species (Fagus lucida, Castanea seguinii, Carpinus viminea and others)","group":"mixed"},"region":{"scope":"site","countries":["CN"],"place":"Badagongshan National Nature Reserve, Hunan province","biomes":["subtropical","montane"]},"stand":"natural","fit":{"n_trees":147,"r2":0.932,"rse":0.207,"method":"Bayesian log-log regression (MCMC)"},"evidence":[{"field":"expression","quote":"AGB = exp(−1.8226 + 2.4105ln(D) + 0.5781ln(WD))","locator":"Recommended model when height is not available, p. 7 (Table 2, model I.4)"},{"field":"fit.r2","quote":"I.4 R² 0.932 RSE 0.207","locator":"Table 3, model I.4 (R2 and RSE columns)"},{"field":"fit.n_trees","quote":"we harvested and weighted dry mass of 147 trees from 41 dominant species in subtropical forest","locator":"Abstract"}],"check":[{"inputs":{"D":20,"rho":0.57},"expected":159.7566,"origin":"computed","note":"computed from the printed coefficients"},{"inputs":{"D":40,"rho":0.6},"expected":874.9228,"origin":"computed","note":"computed from the printed coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Log-log model fitted by Bayesian MCMC; no correction factor is stated, so none is applied. Natural log assumed from the paper's ln notation. Wood density WD is in g cm-3 (Table 2; the running text says g/m3). Whole-tree AGB includes branches, leaves and fruit. Recommended by the authors when height is not available. Coefficients are the more precise values printed in the recommended-model equation (Table 2 gives -1.823, 2.411, 0.578)."},{"id":"xu-2015-iii1-d2h","source":"xu-2015","name":"Subtropical China AGB from D²H (Model III.1)","output":{"quantity":"agb"},"expression":"exp(-3.062 + 0.949 * ln(D^2 * H))","published":{"expression":"exp(-3.062 + 0.949 * ln(D^2 * H))","units":{"D":"cm","H":"m"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"41 subtropical forest tree species (Fagus lucida, Castanea seguinii, Carpinus viminea and others)","group":"mixed"},"region":{"scope":"site","countries":["CN"],"place":"Badagongshan National Nature Reserve, Hunan province","biomes":["subtropical","montane"]},"stand":"natural","fit":{"n_trees":147,"r2":0.924,"rse":0.209,"method":"Bayesian log-log regression (MCMC)"},"evidence":[{"field":"expression","quote":"III.1 ln(AGB) = a + bln(D²H) −3.062 0.949","locator":"Table 2, model III.1"},{"field":"fit.r2","quote":"III.1 R² 0.924 RSE 0.209","locator":"Table 3, model III.1 (R2 and RSE columns)"},{"field":"fit.n_trees","quote":"we harvested and weighted dry mass of 147 trees from 41 dominant species in subtropical forest","locator":"Abstract"}],"check":[{"inputs":{"D":20,"H":14},"expected":168.741,"origin":"computed","note":"computed from the printed coefficients"},{"inputs":{"D":40,"H":20},"expected":882.2215,"origin":"computed","note":"computed from the printed coefficients"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Log-log model fitted by Bayesian MCMC; no correction factor is stated, so none is applied. Natural log assumed from the paper's ln notation. Wood density WD is in g cm-3 (Table 2; the running text says g/m3). Whole-tree AGB includes branches, leaves and fruit."},{"id":"yavit-2017-guadua-dbh","source":"yavit-2017","name":"Guadua weberbaueri and G. sarcocarpa culm AGB from DBH (DBH-only model)","output":{"quantity":"agb"},"expression":"-7.208 + 2.875 * D","published":{"expression":"-7.208 + 2.875 * DBH","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"genus","name":"Guadua (G. weberbaueri and G. sarcocarpa)","family":"Poaceae","group":"bamboo"},"region":{"scope":"regional","countries":["PE"],"place":"Madre de Dios and Ucayali, southeastern Peru","biomes":["tropical"]},"stand":"natural","fit":{"n_trees":278,"dbh_min_cm":1.8,"dbh_max_cm":8.1,"method":"least squares linear regression"},"evidence":[{"field":"expression","quote":"- 7.208 + 2.875x1","locator":"Table 1, DBH Model row"},{"field":"fit.n_trees","quote":"278","locator":"Table 1, DBH Model row, n column"},{"field":"fit.dbh_min_cm","quote":"1.8 - 8.1","locator":"Table 1, X1: DBH (cm) column"}],"check":[{"inputs":{"D":5},"expected":7.167,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"Per-culm (ramet) aboveground biomass (culm, branches and leaves), linear in DBH; it goes negative below about 2.5 cm DBH. The paper reports Adj. R2 = 0.79 and RMSE = 3.86 (Table 1), not stored as r2 because it is adjusted. Output unit kg is read from the kg-per-ramet results and figure axes; the paper does not label the equation itself. The paper also gives complete (DBH, culm length, branch counts) and field (DBH, branch count) models, not added since they need variables outside the canonical list. Preprint, not peer reviewed."},{"id":"zhao-2019-agb-model1","source":"zhao-2019","name":"Guangzhou subtropical forest aboveground biomass, Model 1 (DBH only)","output":{"quantity":"agb"},"expression":"exp(-2.081 + 1.195 * ln(D^2))","published":{"expression":"exp(-2.081 + 1.195 * ln(DBH^2))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Subtropical evergreen broadleaf forest trees (Castanopsis fissa, Aleurites montana, Castanopsis chinensis, Machilus chinensis and 22 companion species)","group":"broadleaf"},"region":{"scope":"site","countries":["CN"],"place":"Fushan, about 26 km northeast of Guangzhou, Guangdong","biomes":["subtropical"]},"stand":"natural","fit":{"n_trees":144,"dbh_min_cm":4.2,"dbh_max_cm":61.2,"r2":0.955,"method":"ln-ln regression (R, nlme)"},"evidence":[{"field":"expression","quote":"ln(B) = a + bln(DBH²)","locator":"Section 2.4, Eq. 1"},{"field":"expression","quote":"(1) −2.081 ± 0.086 1.195 ± 0.015 0.197 0.955 76.7 29.81 −1.96","locator":"Table 3, Aboveground"},{"field":"fit.r2","quote":"(1) −2.081 ± 0.086 1.195 ± 0.015 0.197 0.955 76.7 29.81 −1.96","locator":"Table 3, Aboveground"},{"field":"fit.n_trees","quote":"a total of 144 sampled trees","locator":"Section 2.2"},{"field":"fit.dbh_min_cm","quote":"Total 4.2 61.2","locator":"Table 1"}],"check":[{"inputs":{"D":15},"expected":80.74,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":40},"expected":841.7,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"ln(B) = a + bln(DBH²). Fitted in R (nlme) on ln-transformed biomass; the paper states no back-transform correction factor and none is applied. Aboveground biomass is above a 10 cm stump (stem, branches, leaves); belowground is the root system plus stump. The paper lists five models (1)-(5); model (2) (ln DBH²H) and (4) (ln DBH²WD) are not added here."},{"id":"zhao-2019-agb-model3","source":"zhao-2019","name":"Guangzhou subtropical forest aboveground biomass, Model 3 (DBH and height)","output":{"quantity":"agb"},"expression":"exp(-2.275 + 1.161 * ln(D^2) + 0.152 * ln(H))","published":{"expression":"exp(-2.275 + 1.161 * ln(DBH^2) + 0.152 * ln(H))","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Subtropical evergreen broadleaf forest trees (Castanopsis fissa, Aleurites montana, Castanopsis chinensis, Machilus chinensis and 22 companion species)","group":"broadleaf"},"region":{"scope":"site","countries":["CN"],"place":"Fushan, about 26 km northeast of Guangzhou, Guangdong","biomes":["subtropical"]},"stand":"natural","fit":{"n_trees":144,"dbh_min_cm":4.2,"dbh_max_cm":61.2,"r2":0.952,"method":"ln-ln regression (R, nlme)"},"evidence":[{"field":"expression","quote":"ln(B) = a + bln(DBH²) + cln(H)","locator":"Section 2.4, Eq. 3"},{"field":"expression","quote":"(3) −2.275 ± 0.148 1.161 ± 0.026 0.152 ± 0.095 3.114 0.196 0.952 78.7 30.58 −1.91","locator":"Table 3, Aboveground"},{"field":"fit.r2","quote":"(3) −2.275 ± 0.148 1.161 ± 0.026 0.152 ± 0.095 3.114 0.196 0.952 78.7 30.58 −1.91","locator":"Table 3, Aboveground"},{"field":"fit.n_trees","quote":"a total of 144 sampled trees","locator":"Section 2.2"},{"field":"fit.dbh_min_cm","quote":"Total 4.2 61.2","locator":"Table 1"}],"check":[{"inputs":{"D":15,"H":12},"expected":80.705,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":40,"H":22},"expected":863,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"ln(B) = a + bln(DBH²) + cln(H). Fitted in R (nlme) on ln-transformed biomass; the paper states no back-transform correction factor and none is applied. Aboveground biomass is above a 10 cm stump (stem, branches, leaves); belowground is the root system plus stump. The paper lists five models (1)-(5); model (2) (ln DBH²H) and (4) (ln DBH²WD) are not added here."},{"id":"zhao-2019-agb-model5","source":"zhao-2019","name":"Guangzhou subtropical forest aboveground biomass, Model 5 (DBH and wood density)","output":{"quantity":"agb"},"expression":"exp(-1.712 + 1.212 * ln(D^2) + 0.662 * ln(rho))","published":{"expression":"exp(-1.712 + 1.212 * ln(DBH^2) + 0.662 * ln(WD))","units":{"DBH":"cm","WD":"g/cm3"},"variables":{"DBH":"D","WD":"rho"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Subtropical evergreen broadleaf forest trees (Castanopsis fissa, Aleurites montana, Castanopsis chinensis, Machilus chinensis and 22 companion species)","group":"broadleaf"},"region":{"scope":"site","countries":["CN"],"place":"Fushan, about 26 km northeast of Guangzhou, Guangdong","biomes":["subtropical"]},"stand":"natural","fit":{"n_trees":144,"dbh_min_cm":4.2,"dbh_max_cm":61.2,"r2":0.964,"method":"ln-ln regression (R, nlme)"},"evidence":[{"field":"expression","quote":"ln(B) = a + bln(DBH²) + cln(WD)","locator":"Section 2.4, Eq. 5"},{"field":"expression","quote":"(5) −1.712 ± 0.093 1.212 ± 0.013 0.662 ± 0.100 1.036 0.173 0.964 68.7 26.68 −1.48","locator":"Table 3, Aboveground"},{"field":"fit.r2","quote":"(5) −1.712 ± 0.093 1.212 ± 0.013 0.662 ± 0.100 1.036 0.173 0.964 68.7 26.68 −1.48","locator":"Table 3, Aboveground"},{"field":"fit.n_trees","quote":"a total of 144 sampled trees","locator":"Section 2.2"},{"field":"fit.dbh_min_cm","quote":"Total 4.2 61.2","locator":"Table 1"}],"check":[{"inputs":{"D":15,"rho":0.45},"expected":75.467,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":40,"rho":0.5},"expected":872.17,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"ln(B) = a + bln(DBH²) + cln(WD). Fitted in R (nlme) on ln-transformed biomass; the paper states no back-transform correction factor and none is applied. Aboveground biomass is above a 10 cm stump (stem, branches, leaves); belowground is the root system plus stump. The paper lists five models (1)-(5); model (2) (ln DBH²H) and (4) (ln DBH²WD) are not added here. Wood density WD is the stem basic density measured by water displacement (oven-dry mass over fresh volume)."},{"id":"zhao-2019-bgb-model1","source":"zhao-2019","name":"Guangzhou subtropical forest belowground biomass, Model 1 (DBH only)","output":{"quantity":"bgb"},"expression":"exp(-3.151 + 1.111 * ln(D^2))","published":{"expression":"exp(-3.151 + 1.111 * ln(DBH^2))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Subtropical evergreen broadleaf forest trees (Castanopsis fissa, Aleurites montana, Castanopsis chinensis, Machilus chinensis and 22 companion species)","group":"broadleaf"},"region":{"scope":"site","countries":["CN"],"place":"Fushan, about 26 km northeast of Guangzhou, Guangdong","biomes":["subtropical"]},"stand":"natural","fit":{"n_trees":116,"r2":0.914,"method":"ln-ln regression (R, nlme)"},"evidence":[{"field":"expression","quote":"ln(B) = a + bln(DBH²)","locator":"Section 2.4, Eq. 1"},{"field":"expression","quote":"(1) −3.151 ± 0.159 1.111 ± 0.027 0.341 0.914 19.5 38.49 −5.84","locator":"Table 3, Belowground"},{"field":"fit.r2","quote":"(1) −3.151 ± 0.159 1.111 ± 0.027 0.341 0.914 19.5 38.49 −5.84","locator":"Table 3, Belowground"},{"field":"fit.n_trees","quote":"for a total of 116 trees, including 24 species and 7 diameter classes","locator":"Section 2.2"}],"check":[{"inputs":{"D":15},"expected":17.572,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":40},"expected":155.35,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"ln(B) = a + bln(DBH²). Fitted in R (nlme) on ln-transformed biomass; the paper states no back-transform correction factor and none is applied. Aboveground biomass is above a 10 cm stump (stem, branches, leaves); belowground is the root system plus stump. The paper lists five models (1)-(5); model (2) (ln DBH²H) and (4) (ln DBH²WD) are not added here. The diameter range of the belowground subsample is not stated, so none is given."},{"id":"zhao-2019-bgb-model3","source":"zhao-2019","name":"Guangzhou subtropical forest belowground biomass, Model 3 (DBH and height)","output":{"quantity":"bgb"},"expression":"exp(-3.44 + 1.062 * ln(D^2) + 0.223 * ln(H))","published":{"expression":"exp(-3.44 + 1.062 * ln(DBH^2) + 0.223 * ln(H))","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Subtropical evergreen broadleaf forest trees (Castanopsis fissa, Aleurites montana, Castanopsis chinensis, Machilus chinensis and 22 companion species)","group":"broadleaf"},"region":{"scope":"site","countries":["CN"],"place":"Fushan, about 26 km northeast of Guangzhou, Guangdong","biomes":["subtropical"]},"stand":"natural","fit":{"n_trees":116,"r2":0.917,"method":"ln-ln regression (R, nlme)"},"evidence":[{"field":"expression","quote":"ln(B) = a + bln(DBH²) + cln(H)","locator":"Section 2.4, Eq. 3"},{"field":"expression","quote":"(3) −3.440 ± 0.284 1.062 ± 0.048 0.223 ± 0.181 3.145 0.340 0.917 19.2 37.89 −5.74","locator":"Table 3, Belowground"},{"field":"fit.r2","quote":"(3) −3.440 ± 0.284 1.062 ± 0.048 0.223 ± 0.181 3.145 0.340 0.917 19.2 37.89 −5.74","locator":"Table 3, Belowground"},{"field":"fit.n_trees","quote":"for a total of 116 trees, including 24 species and 7 diameter classes","locator":"Section 2.2"}],"check":[{"inputs":{"D":15,"H":12},"expected":17.567,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":40,"H":22},"expected":161.5,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"ln(B) = a + bln(DBH²) + cln(H). Fitted in R (nlme) on ln-transformed biomass; the paper states no back-transform correction factor and none is applied. Aboveground biomass is above a 10 cm stump (stem, branches, leaves); belowground is the root system plus stump. The paper lists five models (1)-(5); model (2) (ln DBH²H) and (4) (ln DBH²WD) are not added here. The diameter range of the belowground subsample is not stated, so none is given."},{"id":"zhao-2019-bgb-model5","source":"zhao-2019","name":"Guangzhou subtropical forest belowground biomass, Model 5 (DBH and wood density)","output":{"quantity":"bgb"},"expression":"exp(-2.644 + 1.136 * ln(D^2) + 0.936 * ln(rho))","published":{"expression":"exp(-2.644 + 1.136 * ln(DBH^2) + 0.936 * ln(WD))","units":{"DBH":"cm","WD":"g/cm3"},"variables":{"DBH":"D","WD":"rho"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Subtropical evergreen broadleaf forest trees (Castanopsis fissa, Aleurites montana, Castanopsis chinensis, Machilus chinensis and 22 companion species)","group":"broadleaf"},"region":{"scope":"site","countries":["CN"],"place":"Fushan, about 26 km northeast of Guangzhou, Guangdong","biomes":["subtropical"]},"stand":"natural","fit":{"n_trees":116,"r2":0.928,"method":"ln-ln regression (R, nlme)"},"evidence":[{"field":"expression","quote":"ln(B) = a + bln(DBH²) + cln(WD)","locator":"Section 2.4, Eq. 5"},{"field":"expression","quote":"(5) −2.644 ± 0.178 1.136 ± 0.025 0.936 ± 0.189 1.041 0.310 0.928 17.8 35.21 −4.67","locator":"Table 3, Belowground"},{"field":"fit.r2","quote":"(5) −2.644 ± 0.178 1.136 ± 0.025 0.936 ± 0.189 1.041 0.310 0.928 17.8 35.21 −4.67","locator":"Table 3, Belowground"},{"field":"fit.n_trees","quote":"for a total of 116 trees, including 24 species and 7 diameter classes","locator":"Section 2.2"}],"check":[{"inputs":{"D":15,"rho":0.45},"expected":15.82,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":40,"rho":0.5},"expected":162.12,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"ln(B) = a + bln(DBH²) + cln(WD). Fitted in R (nlme) on ln-transformed biomass; the paper states no back-transform correction factor and none is applied. Aboveground biomass is above a 10 cm stump (stem, branches, leaves); belowground is the root system plus stump. The paper lists five models (1)-(5); model (2) (ln DBH²H) and (4) (ln DBH²WD) are not added here. Wood density WD is the stem basic density measured by water displacement (oven-dry mass over fresh volume). The diameter range of the belowground subsample is not stated, so none is given."},{"id":"zhao-2019-branch-model1","source":"zhao-2019","name":"Guangzhou subtropical forest branch biomass, Model 1 (DBH only)","output":{"quantity":"branch_biomass"},"expression":"exp(-4.342 + 1.352 * ln(D^2))","published":{"expression":"exp(-4.342 + 1.352 * ln(DBH^2))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Subtropical evergreen broadleaf forest trees (Castanopsis fissa, Aleurites montana, Castanopsis chinensis, Machilus chinensis and 22 companion species)","group":"broadleaf"},"region":{"scope":"site","countries":["CN"],"place":"Fushan, about 26 km northeast of Guangzhou, Guangdong","biomes":["subtropical"]},"stand":"natural","fit":{"n_trees":144,"dbh_min_cm":4.2,"dbh_max_cm":61.2,"r2":0.881,"method":"ln-ln regression (R, nlme)"},"evidence":[{"field":"expression","quote":"ln(B) = a + bln(DBH²)","locator":"Section 2.4, Eq. 1"},{"field":"expression","quote":"(1) −4.342 ± 0.187 1.352 ± 0.032 0.000 0.881 45.3 53.35 −9.93","locator":"Table A1, Branch"},{"field":"fit.r2","quote":"(1) −4.342 ± 0.187 1.352 ± 0.032 0.000 0.881 45.3 53.35 −9.93","locator":"Table A1, Branch"},{"field":"fit.n_trees","quote":"a total of 144 sampled trees","locator":"Section 2.2"},{"field":"fit.dbh_min_cm","quote":"Total 4.2 61.2","locator":"Table 1"}],"check":[{"inputs":{"D":15},"expected":19.699,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":40},"expected":279.42,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"ln(B) = a + bln(DBH²). Fitted in R (nlme) on ln-transformed biomass; the paper states no back-transform correction factor and none is applied. Aboveground biomass is above a 10 cm stump (stem, branches, leaves); belowground is the root system plus stump. The paper lists five models (1)-(5); model (2) (ln DBH²H) and (4) (ln DBH²WD) are not added here."},{"id":"zhao-2019-foliage-model1","source":"zhao-2019","name":"Guangzhou subtropical forest leaf biomass, Model 1 (DBH only)","output":{"quantity":"foliage_biomass"},"expression":"exp(-4.156 + 1.092 * ln(D^2))","published":{"expression":"exp(-4.156 + 1.092 * ln(DBH^2))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Subtropical evergreen broadleaf forest trees (Castanopsis fissa, Aleurites montana, Castanopsis chinensis, Machilus chinensis and 22 companion species)","group":"broadleaf"},"region":{"scope":"site","countries":["CN"],"place":"Fushan, about 26 km northeast of Guangzhou, Guangdong","biomes":["subtropical"]},"stand":"natural","fit":{"n_trees":144,"dbh_min_cm":4.2,"dbh_max_cm":61.2,"r2":0.689,"method":"ln-ln regression (R, nlme)"},"evidence":[{"field":"expression","quote":"ln(B) = a + bln(DBH²)","locator":"Section 2.4, Eq. 1"},{"field":"expression","quote":"(1) −4.156 ± 0.226 1.092 ± 0.039 0.491 0.689 17.1 89.84 −15.92","locator":"Table A1, Leaf"},{"field":"fit.r2","quote":"(1) −4.156 ± 0.226 1.092 ± 0.039 0.491 0.689 17.1 89.84 −15.92","locator":"Table A1, Leaf"},{"field":"fit.n_trees","quote":"a total of 144 sampled trees","locator":"Section 2.2"},{"field":"fit.dbh_min_cm","quote":"Total 4.2 61.2","locator":"Table 1"}],"check":[{"inputs":{"D":15},"expected":5.803,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":40},"expected":49.428,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"ln(B) = a + bln(DBH²). Fitted in R (nlme) on ln-transformed biomass; the paper states no back-transform correction factor and none is applied. Aboveground biomass is above a 10 cm stump (stem, branches, leaves); belowground is the root system plus stump. The paper lists five models (1)-(5); model (2) (ln DBH²H) and (4) (ln DBH²WD) are not added here."},{"id":"zhao-2019-stem-model1","source":"zhao-2019","name":"Guangzhou subtropical forest stem biomass, Model 1 (DBH only)","output":{"quantity":"stem_biomass"},"expression":"exp(-2.202 + 1.138 * ln(D^2))","published":{"expression":"exp(-2.202 + 1.138 * ln(DBH^2))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Subtropical evergreen broadleaf forest trees (Castanopsis fissa, Aleurites montana, Castanopsis chinensis, Machilus chinensis and 22 companion species)","group":"broadleaf"},"region":{"scope":"site","countries":["CN"],"place":"Fushan, about 26 km northeast of Guangzhou, Guangdong","biomes":["subtropical"]},"stand":"natural","fit":{"n_trees":144,"dbh_min_cm":4.2,"dbh_max_cm":61.2,"r2":0.933,"method":"ln-ln regression (R, nlme)"},"evidence":[{"field":"expression","quote":"ln(B) = a + bln(DBH²)","locator":"Section 2.4, Eq. 1"},{"field":"expression","quote":"(1) −2.202 ± 0.1 1.138 ± 0.017 0.529 0.933 53.8 35.02 −2.65","locator":"Table A1, Stem"},{"field":"fit.r2","quote":"(1) −2.202 ± 0.1 1.138 ± 0.017 0.529 0.933 53.8 35.02 −2.65","locator":"Table A1, Stem"},{"field":"fit.n_trees","quote":"a total of 144 sampled trees","locator":"Section 2.2"},{"field":"fit.dbh_min_cm","quote":"Total 4.2 61.2","locator":"Table 1"}],"check":[{"inputs":{"D":15},"expected":52.537,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":40},"expected":489.75,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"ln(B) = a + bln(DBH²). Fitted in R (nlme) on ln-transformed biomass; the paper states no back-transform correction factor and none is applied. Aboveground biomass is above a 10 cm stump (stem, branches, leaves); belowground is the root system plus stump. The paper lists five models (1)-(5); model (2) (ln DBH²H) and (4) (ln DBH²WD) are not added here."},{"id":"zhao-2019-total-model1","source":"zhao-2019","name":"Guangzhou subtropical forest total biomass, Model 1 (DBH only)","output":{"quantity":"total_biomass"},"expression":"exp(-1.768 + 1.176 * ln(D^2))","published":{"expression":"exp(-1.768 + 1.176 * ln(DBH^2))","units":{"DBH":"cm"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Subtropical evergreen broadleaf forest trees (Castanopsis fissa, Aleurites montana, Castanopsis chinensis, Machilus chinensis and 22 companion species)","group":"broadleaf"},"region":{"scope":"site","countries":["CN"],"place":"Fushan, about 26 km northeast of Guangzhou, Guangdong","biomes":["subtropical"]},"stand":"natural","fit":{"r2":0.954,"method":"ln-ln regression (R, nlme)"},"evidence":[{"field":"expression","quote":"ln(B) = a + bln(DBH²)","locator":"Section 2.4, Eq. 1"},{"field":"expression","quote":"(1) −1.768 ± 0.099 1.176 ± 0.017 0.211 0.954 94.9 30.42 −2.26","locator":"Table 3, Total"},{"field":"fit.r2","quote":"(1) −1.768 ± 0.099 1.176 ± 0.017 0.211 0.954 94.9 30.42 −2.26","locator":"Table 3, Total"}],"check":[{"inputs":{"D":15},"expected":99.617,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":40},"expected":1000.5,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"ln(B) = a + bln(DBH²). Fitted in R (nlme) on ln-transformed biomass; the paper states no back-transform correction factor and none is applied. Aboveground biomass is above a 10 cm stump (stem, branches, leaves); belowground is the root system plus stump. The paper lists five models (1)-(5); model (2) (ln DBH²H) and (4) (ln DBH²WD) are not added here. Sample size and diameter range for the belowground subsample are not stated separately for the total model, so none is given."},{"id":"zhao-2019-total-model3","source":"zhao-2019","name":"Guangzhou subtropical forest total biomass, Model 3 (DBH and height)","output":{"quantity":"total_biomass"},"expression":"exp(-2.052 + 1.128 * ln(D^2) + 0.218 * ln(H))","published":{"expression":"exp(-2.052 + 1.128 * ln(DBH^2) + 0.218 * ln(H))","units":{"DBH":"cm","H":"m"},"variables":{"DBH":"D"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Subtropical evergreen broadleaf forest trees (Castanopsis fissa, Aleurites montana, Castanopsis chinensis, Machilus chinensis and 22 companion species)","group":"broadleaf"},"region":{"scope":"site","countries":["CN"],"place":"Fushan, about 26 km northeast of Guangzhou, Guangdong","biomes":["subtropical"]},"stand":"natural","fit":{"r2":0.951,"method":"ln-ln regression (R, nlme)"},"evidence":[{"field":"expression","quote":"ln(B) = a + bln(DBH²) + cln(H)","locator":"Section 2.4, Eq. 3"},{"field":"expression","quote":"(3) −2.052 ± 0.174 1.128 ± 0.030 0.218 ± 0.111 3.145 0.208 0.951 98.4 31.56 −2.15","locator":"Table 3, Total"},{"field":"fit.r2","quote":"(3) −2.052 ± 0.174 1.128 ± 0.030 0.218 ± 0.111 3.145 0.208 0.951 98.4 31.56 −2.15","locator":"Table 3, Total"}],"check":[{"inputs":{"D":15,"H":12},"expected":99.392,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":40,"H":22},"expected":1036.9,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"ln(B) = a + bln(DBH²) + cln(H). Fitted in R (nlme) on ln-transformed biomass; the paper states no back-transform correction factor and none is applied. Aboveground biomass is above a 10 cm stump (stem, branches, leaves); belowground is the root system plus stump. The paper lists five models (1)-(5); model (2) (ln DBH²H) and (4) (ln DBH²WD) are not added here. Sample size and diameter range for the belowground subsample are not stated separately for the total model, so none is given."},{"id":"zhao-2019-total-model5","source":"zhao-2019","name":"Guangzhou subtropical forest total biomass, Model 5 (DBH and wood density)","output":{"quantity":"total_biomass"},"expression":"exp(-1.365 + 1.196 * ln(D^2) + 0.746 * ln(rho))","published":{"expression":"exp(-1.365 + 1.196 * ln(DBH^2) + 0.746 * ln(WD))","units":{"DBH":"cm","WD":"g/cm3"},"variables":{"DBH":"D","WD":"rho"},"output_unit":"kg"},"taxon":{"level":"mixed","name":"Subtropical evergreen broadleaf forest trees (Castanopsis fissa, Aleurites montana, Castanopsis chinensis, Machilus chinensis and 22 companion species)","group":"broadleaf"},"region":{"scope":"site","countries":["CN"],"place":"Fushan, about 26 km northeast of Guangzhou, Guangdong","biomes":["subtropical"]},"stand":"natural","fit":{"r2":0.966,"method":"ln-ln regression (R, nlme)"},"evidence":[{"field":"expression","quote":"ln(B) = a + bln(DBH²) + cln(WD)","locator":"Section 2.4, Eq. 5"},{"field":"expression","quote":"(5) −1.365 ± 0.102 1.196 ± 0.015 0.746 ± 0.108 1.041 0.178 0.966 82.1 26.32 −1.57","locator":"Table 3, Total"},{"field":"fit.r2","quote":"(5) −1.365 ± 0.102 1.196 ± 0.015 0.746 ± 0.108 1.041 0.178 0.966 82.1 26.32 −1.57","locator":"Table 3, Total"}],"check":[{"inputs":{"D":15,"rho":0.45},"expected":91.558,"origin":"computed","note":"hand-computed from the published form"},{"inputs":{"D":40,"rho":0.5},"expected":1034.5,"origin":"computed","note":"hand-computed from the published form"}],"verification":"original_read","checked_at":"2026-11-02","notes":"ln(B) = a + bln(DBH²) + cln(WD). Fitted in R (nlme) on ln-transformed biomass; the paper states no back-transform correction factor and none is applied. Aboveground biomass is above a 10 cm stump (stem, branches, leaves); belowground is the root system plus stump. The paper lists five models (1)-(5); model (2) (ln DBH²H) and (4) (ln DBH²WD) are not added here. Wood density WD is the stem basic density measured by water displacement (oven-dry mass over fresh volume). Sample size and diameter range for the belowground subsample are not stated separately for the total model, so none is given."}]