{"id":"delcourt-2022-magadan-branch","source":{"id":"delcourt-2022","citation":"Delcourt, C. J. F., & Veraverbeke, S. (2022). Allometric equations and wood density parameters for estimating aboveground and woody debris biomass in Cajander larch (Larix cajanderi) forests of northeast Siberia. Biogeosciences, 19, 4499–4520.","title":"Allometric equations and wood density parameters for estimating aboveground and woody debris biomass in Cajander larch (Larix cajanderi) forests of northeast Siberia","authors":["Delcourt, C. J. F.","Veraverbeke, S."],"year":2022,"venue":"Biogeosciences","doi":"10.5194/bg-19-4499-2022","url":"https://doi.org/10.5194/bg-19-4499-2022","read_url":"https://bg.copernicus.org/articles/19/4499/2022/","access":"open","checked_at":"2026-11-02","status":"current"},"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."}