{"id":"meng-2019-foliage","source":{"id":"meng-2019","citation":"Meng, S., Jia, Q., Liu, Q., et al. (2019). Aboveground Biomass Allocation and Additive Allometric Models for Natural Larix gmelinii in the Western Daxing'anling Mountains, Northeastern China. Forests, 10(2), 150.","title":"Aboveground Biomass Allocation and Additive Allometric Models for Natural Larix gmelinii in the Western Daxing'anling Mountains, Northeastern China","authors":["Meng, S.","Jia, Q.","Liu, Q."],"year":2019,"venue":"Forests","doi":"10.3390/f10020150","url":"https://doi.org/10.3390/f10020150","read_url":"https://www.mdpi.com/1999-4907/10/2/150/htm","access":"open","license":"CC BY 4.0","checked_at":"2026-11-02","status":"current"},"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)."}