Robinia pseudoacacia / Aboveground biomass
North American taxa group: Fabaceae/Juglandaceae, other (Table 5)
Aboveground biomassRobinia pseudoacacia · FabaceaeUnited StatesmixedRead from the original paper
© Nick Kleinschmidt · CC BY · iNaturalistEquation
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(-2.5095 + 2.5437 * ln(D))D- Diameter at breast height (1.3 m), cm
Fitted for the 'Fabaceae/Juglandaceae, other' taxon, which held only two black locust equations, so it is recorded as a species fit. Meant by the authors for non-hickory legumes and walnuts too. Median specific gravity of the group: 0.66. Diameter range is that of the pseudodata. R² is the published 'R²-statistic'.
Source
doi:10.1093/forestry/cpt053 · Open access · copy we read
Fabaceae/Juglandaceae, other 0.66 −2.5095 2.5437 14 2 dbh 4–42 0.81
Fabaceae Robinia pseudoacacia Locust, black 901 0.66
we did not include a correction (Baskerville, 1972) for underestimation
- DBH range
- 4–42 cm
- R²
- 0.81
- Method
- Weighted regression of ln(biomass) on ln(dbh) fitted to 14 pseudodata points generated from 2 published equations; no back-transform correction
- Where
- United States (equations compiled from US and Canadian studies)
- Last checked
- 2026-11-03
Calculate
465
Aboveground biomass (kg)
219
Carbon (kg), ×0.47
801
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 | 465 | 465 | Computed from the printed form computed from the published form at dbh = 30 cm |
Related
- Young black locust woody AGB from shoot basal diameter (Eq. 6) · Böhm et al. 2011 · Root collar diameter
- Young black locust woody AGB from tree height (Eq. 7) · Böhm et al. 2011 · Height
- Young black locust woody AGB from SBD times height (Eq. 8) · Böhm et al. 2011 · Root collar diameter + Height
- NSVB black locust, species-level (all ecodivisions): total aboveground biomass (without foliage), Schumacher-Hall model (Eq. 1) · Westfall et al. 2024 · DBH + Height
- 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
- North American taxa group: Aceraceae ≥ 0.50 spg (Table 5) · same paper · Aboveground biomass
- 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 ≥ 0.60 spg (Table 5) · same paper · Aboveground biomass
- North American taxa group: Betulaceae < 0.40 spg (Table 5) · same paper · Aboveground biomass