Equations / Aboveground biomass
North American taxa group: Betulaceae ≥ 0.60 spg (Table 5)
Aboveground biomassBetulaceae ≥ 0.60 spg (Betula lenta, Ostrya virginiana) · BetulaceaeUnited StatesmixedRead from the original paper
Fitted on these 2 species: Betula lenta, Ostrya virginiana
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(-2.2652 + 2.5349 * ln(D))D- Diameter at breast height (1.3 m), cm
Sweet birch and hophornbeam. Median specific gravity of the group: 0.62. Diameter range is that of the pseudodata. R² is the published 'R²-statistic'.
Source
doi:10.1093/forestry/cpt053 · Open access · copy we read
Betulaceae ≥ 0.60 spg 0.62 −2.2652 2.5349 55 11 dbh 3–47 0.81
Betulaceae Ostrya virginiana Hophornbeam 701 0.63
we did not include a correction (Baskerville, 1972) for underestimation
- DBH range
- 3–47 cm
- R²
- 0.81
- Method
- Weighted regression of ln(biomass) on ln(dbh) fitted to 55 pseudodata points generated from 11 published equations; no back-transform correction
- Where
- United States (equations compiled from US and Canadian studies)
- Last checked
- 2026-11-03
Calculate
576
Aboveground biomass (kg)
271
Carbon (kg), ×0.47
993
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 = 30 | 576 | 576 | Computed from the printed form computed from the published form at dbh = 30 cm |
Related
- North American taxa group: Abies ≥ 0.35 spg (Table 5) · same paper · Aboveground biomass
- North American taxa group: Abies < 0.35 spg (Table 5) · same paper · Aboveground biomass
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- North American taxa group: Aceraceae < 0.50 spg (Table 5) · same paper · Aboveground biomass
- North American taxa group: Betulaceae 0.40–0.49 spg (Table 5) · same paper · Aboveground biomass
- North American taxa group: Betulaceae 0.50–0.59 spg (Table 5) · same paper · Aboveground biomass
- North American taxa group: Betulaceae < 0.40 spg (Table 5) · same paper · Aboveground biomass
- North American taxa group: Fabaceae/Juglandaceae, Carya (Table 5) · same paper · Aboveground biomass