Faidherbia albida / Aboveground biomass
Faidherbia albida in parklands, DBH only (M1, selected)
Aboveground biomassFaidherbia albida · FabaceaeEthiopiaagroforestryRead from the original paper
© Bernard DUPONT · CC BY-SA · iNaturalistEquation
As printed (Abstract; Table 4 M1 (CF 1.05))
Ln (AGB) = -2.85 + 2.4 ln (DBH)
In this library's units, ready to compute (kg)
Aboveground biomass = 1.05 * exp(-2.85 + 2.4 * ln(D))D- Diameter at breast height (1.3 m), cm
CF 1.05 (Table 4) multiplies the back-transformed exponential. DBH taken at 1.37 m per the paper (also given as 1.3 m in the methods). Only 35 trees and DBH 8-31 cm.
Source
doi:10.1080/21580103.2025.2497246 · Open access
Ln (TAGB) = a0 + a1 ln (DBH) ... −2.85 2.4 ... CF 1.05 ... 0.88 ... 0.3
- Trees measured
- 35
- DBH range
- 8–31 cm
- Height range
- 3–11.5 m
- R²
- 0.88
- Residual SE
- 0.3
- Correction factor
- 1.05 (applied)
- Method
- OLS on ln-transformed data, adjusted R2
- Where
- Parklands of Kilte Awlaelo, Hawzen and Ganta-Afeshum districts, eastern Tigray, Ethiopia (about 1850-2610 m)
- Last checked
- 2026-11-01
Calculate
40.4
Aboveground biomass (kg)
19
Carbon (kg), ×0.47
69.6
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 = 15 | 40.4 | 40.4 | Computed from the printed form hand-computed from the published form |
| D = 30 | 213 | 213 | Computed from the printed form hand-computed from the published form |
Related
- Pruned Faidherbia albida total wood mass from DBH (Eq. 3.7) · Ambomo Tsanga et al. 2026 · DBH
- Pruned Faidherbia albida total wood mass from D²H (Eq. 3.5) · Ambomo Tsanga et al. 2026 · DBH + Height
- Pruned Faidherbia albida total wood mass from D and H (Eq. 3.6) · Ambomo Tsanga et al. 2026 · DBH + Height
- Faidherbia albida in parklands, stump-height diameter (M2) · Darcha et al. 2025 · D30
- Faidherbia albida in parklands, stump-height diameter (M2) · same paper · Aboveground biomass