Equations / Aboveground biomass
Quercus group 1 (rugosa, candicans, laurina): total aboveground biomass (sum of components)
Aboveground biomassQuercus group 1 (Q. rugosa, Q. candicans, Q. laurina) · FagaceaeMexiconaturalRead from the original paper
Fitted on these 3 species: Quercus rugosa, Quercus candicans, Quercus laurina
Equation
As printed (Table 8, Grupo 1)
Bt = ΣBi
In this library's units, ready to compute (kg)
Aboveground biomass = (0.031052 * D^1.992101 * H^0.835385) + (0.002501 * (D^2 * H)^1.165467) + (0.005943 * D^2.2394)D- Diameter at breast height (1.3 m), cm
H- Total tree height, m
Group sample size not stated; D and H ranges are the union of the three species' Table 1 ranges. Adjusted R2 (not stored): stem 0.98, branches 0.85, foliage 0.80, total 0.96 (Table 8). 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 = 0.031052 × Dn^1.992101 × At^0.835385
Br = 0.002501 × (Dn² × At)^1.165467
Bh = 0.005943 × Dn^2.23940
- 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
101
Aboveground biomass (kg)
47.7
Carbon (kg), ×0.47
175
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 | 101 | 101 | Computed from the printed form computed from the published form (Table 8) |
| D = 35.8, H = 15.7 | 663 | 663 | Computed from the printed form computed from the published form (Table 8) |
Related
- Six Guanajuato oaks pooled, total aboveground biomass fitted directly (model 3) · same paper · Aboveground biomass
- Six Guanajuato oaks pooled, total aboveground biomass fitted directly (model 4) · same paper · Aboveground biomass
- Quercus candicans: total aboveground biomass (sum of components) · same paper · Aboveground biomass
- Quercus candicans: branch biomass · same paper · Branch biomass
- Quercus candicans: foliage (twigs with leaves) biomass · same paper · Foliage biomass
- Quercus candicans: stem biomass · same paper · Stem biomass
- Quercus coccolobifolia: total aboveground biomass (sum of components) · same paper · Aboveground biomass
- Quercus coccolobifolia: branch biomass · same paper · Branch biomass