Quercus laurina / Aboveground biomass
Quercus laurina: total aboveground biomass (sum of components)
Aboveground biomassQuercus laurina Bonpl. · FagaceaeMexiconaturalRead from the original paper
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Equation
As printed (Table 9, Quercus laurina)
Bt = ΣBi
In this library's units, ready to compute (kg)
Aboveground biomass = (exp(-3.184629) * D^2.025824 * H^0.690906) + (exp(-6.893717) * (D^2 * H)^1.247303) + (exp(-4.816123) * D^2.174373)D- Diameter at breast height (1.3 m), cm
H- Total tree height, m
Table 1 sample size and ranges for this species. Adjusted R2 (not stored): stem 0.98, branches 0.94, foliage 0.92, total 0.98 (Table 9). Total is the sum of the component equations, as the paper defines it.
Source
doi:10.21829/myb.2019.2521799 · Open access · copy we read
Bf = exp (– 3.184629) × Dn^2.025824 × At^0.690906
Br = exp (– 6.893717) × (Dn² × At)^1.247303
Bh = exp (– 4.816123) × Dn^2.174373
30
- Trees measured
- 30
- DBH range
- 5.8–48.6 cm
- Height range
- 4.35–20.6 m
- Method
- Additive system of component equations fitted simultaneously (iterated seemingly unrelated regression)
- Where
- Sierra de Santa Rosa, Guanajuato (bosques de encino)
- Last checked
- 2026-11-02
Calculate
Height from
99.9
Aboveground biomass (kg)
47
Carbon (kg), ×0.47
172
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 = 18.6, H = 9.2 | 99.9 | 99.9 | Computed from the printed form computed from the published form (Table 9) |
| D = 35.8, H = 15.7 | 646 | 646 | Computed from the printed form computed from the published form (Table 9) |
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