{"id":"giraldo-salazar-2025-general","source":{"id":"giraldo-salazar-2025","citation":"Giraldo-Salazar, J. M., Giraldo, J. A., Mendoza-Páez, J. S., Sierra, J. C., Rueda, J. A., & Osorio-Vélez, L. F. (2025). Allometric equations to quantify aboveground biomass in mixed-species plantations with restoration purposes in the tropical Andes. Journal of Forestry Research, 36, 44.","title":"Allometric equations to quantify aboveground biomass in mixed-species plantations with restoration purposes in the tropical Andes","authors":["Giraldo-Salazar, J. M.","Giraldo, J. A.","Mendoza-Páez, J. S."],"year":2025,"venue":"Journal of Forestry Research","doi":"10.1007/s11676-025-01827-w","url":"https://doi.org/10.1007/s11676-025-01827-w","read_url":"https://link.springer.com/article/10.1007/s11676-025-01827-w","access":"open","checked_at":"2026-11-02","status":"current"},"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."}