Equations / Aboveground biomass
Raphia laurentii AGB from total palm height (m4, all sizes)
As printed (Table 2, m4 row (AGB in kg dry mass); CF defined in Methods, p. 5)
In this library's units, ready to compute (kg)
Aboveground biomass = 1.13 * exp(-5.262 + 3.404 * ln(H))H- Total tree height, m
Whole-palm aboveground dry biomass (stem, sheaths, petioles, rachis and leaflets, so foliage is included). Total height is base of the stem to the highest point of the fronds. Fitted on 90 palms of mean petiole diameter 2–15 cm. CF is the printed correction factor (rounded to 2 decimals) and is applied in the expression. Single-predictor model: the paper's better models use the sum of petiole diameters (not a canonical variable; not captured), so this is a fallback for when only diameter or height is measured. R² adj printed: 0.82; RSE 0.50 (Table 2).
doi:10.1371/journal.pone.0273591 · Open access · copy we read
The aboveground biomass estimated from each logarithmic linear model was multiplied by the following correction factor
Table 2 range (n): 2–15 cm (90)
Total palm height (H; m) 13.30±3.88 5.13–21.20
- Trees measured
- 90
- Height range
- 5.13–21.2 m
- Correction factor
- 1.13 (applied)
- Method
- ln-ln linear regression times correction factor CF = exp(RSE²/2)
- Where
- Peat swamp forest near Bolembe, Likouala Department, Republic of the Congo
- Last checked
- 2026-11-02
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 |
|---|---|---|---|
| H = 8 | 6.95 | 6.95 | Computed from the printed form computed from the published form (coefficients and CF as printed) |
| H = 13 | 36.3 | 36.3 | Computed from the printed form computed from the published form (coefficients and CF as printed) |
| H = 18 | 109.8 | 109.8 | Computed from the printed form computed from the published form (coefficients and CF as printed) |
Related
- Raphia laurentii AGB from stem base diameter (m13, mean petiole diameter ≥5 cm) · Bocko et al. 2023 · Root collar diameter
- Raphia laurentii AGB from total palm height (m15, mean petiole diameter ≥5 cm) · Bocko et al. 2023 · Height
- Raphia laurentii AGB from stem base diameter (m2, all sizes) · Bocko et al. 2023 · Root collar diameter
- Raphia laurentii AGB from stem base diameter (m13, mean petiole diameter ≥5 cm) · same paper · Aboveground biomass
- Raphia laurentii AGB from total palm height (m15, mean petiole diameter ≥5 cm) · same paper · Aboveground biomass
- Raphia laurentii AGB from stem base diameter (m2, all sizes) · same paper · Aboveground biomass