Equations / Aboveground biomass
North American taxa group: woodland Fabaceae/Rosaceae (Table 5)
Aboveground biomassWoodland Fabaceae/Rosaceae (Cercidium microphyllum, Prosopis spp., Cercocarpus ledifolius, C. montanus var. paucidentatus)United StatesmixedRead from the original paper
Fitted on these 3 species and others the paper does not name here: Cercidium microphyllum, Cercocarpus ledifolius, Cercocarpus montanus
Equation
As printed (Table 5 caption, p. 140)
ln(biomass) = β0 + β1 ln(diameter)
In this library's units, ready to compute (kg)
Aboveground biomass = exp(-2.9255 + 2.4109 * ln(DRC))DRC- Root collar / stem base diameter, cm
Yellow paloverde, mesquites and mountain mahoganies, by root-collar diameter. Root-collar diameter range of the pseudodata: 3–60 cm. Median specific gravity of the group: 0.80. R² is the published 'R²-statistic'.
Source
doi:10.1093/forestry/cpt053 · Open access · copy we read
Fabaceae/Rosaceae 0.80 −2.9255 2.4109 41 7 drc 3–60 0.89
Fabaceae Prosopis spp. Mesquite 755 0.78 4
we did not include a correction (Baskerville, 1972) for underestimation
- R²
- 0.89
- Method
- Weighted regression of ln(biomass) on ln(drc) fitted to 41 pseudodata points generated from 7 published equations; no back-transform correction
- Where
- United States (equations compiled from US and Canadian studies)
- Last checked
- 2026-11-03
Calculate
195
Aboveground biomass (kg)
91.8
Carbon (kg), ×0.47
337
CO₂e (kg), ×44/12
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 |
|---|---|---|---|
| DRC = 30 | 195 | 195 | Computed from the printed form computed from the published form at drc = 30 cm |
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