Equations / Stem biomass
Larix cajanderi, Magadan Oblast, stem (wood plus bark) biomass from DBH (Table 5)
Stem biomassLarix cajanderi · PinaceaeRussianaturalRead from the original paper
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Equation
As printed (Table 5)
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
In this library's units, ready to compute (kg)
Stem biomass = 0.066 * D^2.493D- 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. 'Stem' is the stem row (the table also lists stem wood and stem bark separately; the contract has no output for those).
Source
doi:10.5194/bg-19-4499-2022 · Open access · copy we read
43 trees, DBH range 3.9–52.8 cm
- Trees measured
- 43
- DBH range
- 3.9–52.8 cm
- Method
- weighted nonlinear least squares power function, weights DBH^(-2c)
- Where
- Magadan Oblast, Russia (site-specific, Larix cajanderi stands)
- Last checked
- 2026-11-02
Calculate
3.648
Stem biomass (kg)
1.715
Carbon (kg), ×0.47
6.287
CO₂e (kg), ×44/12
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%.
| Inputs | Expected | We get | From |
|---|---|---|---|
| D = 5 | 3.65 | 3.65 | Computed from the printed form hand-computed from the published form |
| D = 15 | 56.4 | 56.4 | Computed from the printed form hand-computed from the published form |
| D = 40 | 650.9 | 650.8 | Computed from the printed form hand-computed from the published form |
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- Larix cajanderi, Magadan Oblast, total aboveground biomass from DBH (Table 5) · same paper · Aboveground biomass
- Larix cajanderi, Magadan Oblast, branch biomass from DBH (Table 5) · same paper · Branch biomass
- Larix cajanderi, Magadan Oblast, foliage biomass from DBH (Table 5) · same paper · Foliage biomass
- Larix cajanderi, Ust-Yansky district, total aboveground biomass from DBH (Table 5) · same paper · Aboveground biomass
- Larix cajanderi, Ust-Yansky district, branch biomass from DBH (Table 5) · same paper · Branch biomass
- Larix cajanderi, Ust-Yansky district, foliage biomass from DBH (Table 5) · same paper · Foliage biomass
- Larix cajanderi, Ust-Yansky district, stem (wood plus bark) biomass from DBH (Table 5) · same paper · Stem biomass