Tree Allometrics

Equations / Foliage biomass

Larix cajanderi, Ust-Yansky district, foliage biomass from DBH (Table 5)

Foliage biomassLarix cajanderi · PinaceaeRussianaturalRead from the original paper
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Equation

As printed (Table 5)

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

In this library's units, ready to compute (kg)

Foliage biomass = 0.043 * D^1.642
D
Diameter at breast height (1.3 m), cm

Coefficients as printed in Table 5 (3 decimals); no log back-transform because fitted by weighted nonlinear regression.

Source
20 trees, DBH range 1.8–18.9 cm
Trees measured · Table 5, Number of trees and DBH range columns
Trees measured
20
DBH range
1.8–18.9 cm
Method
weighted nonlinear least squares power function, weights DBH^(-2c)
Where
Ust-Yansky district, Republic of Sakha, Russia (site-specific, Larix cajanderi stands)
Last checked
2026-11-02
Calculate
0.261
Foliage biomass (kg)
0.123
Carbon (kg), ×0.47
0.45
CO₂e (kg), ×44/12
Fitted DBH range05101520510152025303540DBH (cm)Foliage biomass (kg)Foliage biomass

Shaded: the DBH range the model was fitted on. Other inputs held at the values above.

Checks this equation passes

On every build, the library's form and the paper's own form (in its units) must both give these values within 1%.

InputsExpectedWe getFrom
D = 30.2610.261Computed from the printed form
hand-computed from the published form
D = 81.311.31Computed from the printed form
hand-computed from the published form
D = 153.673.67Computed from the printed form
hand-computed from the published form

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