Colophospermum mopane / Aboveground biomass
Mopane total AGB from D²H (TM3)
As printed (Table 6, model TM3, p. 10)
In this library's units, ready to compute (kg)
Aboveground biomass = exp(-2.373 + 0.916 * ln(D^2 * H))D- Diameter at breast height (1.3 m), cm
H- Total tree height, m
Model 3 (D²H); best by Akaike weight among the three total AGB models per the authors. Total aboveground biomass is the sum of stem, branches (min. 3 cm) and foliage, so leaves are included. The printed intercept is ln(a); no back-transformation correction factor is stated in the paper and none is applied. n = 120 sampled trees (Methods p. 3, Table 3), but Table 5 heads the total-AGB column 'n = 84', so the fitted n may be 84.
doi:10.1038/s41598-025-87297-w · Open access · copy we read
120 individuals of C. mopane
D range (cm) 5–109
Total tree height (m) 4.0 9.3 21.6 52 / 3.8 8.3 14.6 32
TM3 ... R-square 95.91
- Trees measured
- 120
- DBH range
- 5–109 cm
- Height range
- 3.8–21.6 m
- R²
- 0.9591
- Method
- log-linear OLS regression (ln Y = ln a + b ln(D²H))
- Where
- Mabalane (Gaza) and Tambara (Manica) districts, mopane woodland
- Last checked
- 2026-11-01
Shaded: the DBH range the model was fitted on. Other inputs held at the values above.
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 = 20, H = 9 | 169 | 169 | Computed from the printed form computed from the published form |
Related
- Mopane total AGB from D (TM1) · Lisboa et al. 2025 · DBH
- Mopane total AGB from D and H (TM2) · Lisboa et al. 2025 · DBH + Height
- Mopane height from D (power H-D model) · same paper · Height
- Mopane root biomass from D (RM1) · same paper · Root biomass
- Mopane root biomass from D²H (RM3) · same paper · Root biomass
- Mopane total AGB from D (TM1) · same paper · Aboveground biomass
- Mopane total AGB from D and H (TM2) · same paper · Aboveground biomass