Shorea teysmaniana / Aboveground biomass
S. teysmaniana peat swamp, ln(AGB) on DBH and total height
Aboveground biomassShorea teysmaniana · DipterocarpaceaeIndonesianaturalRead from the original paper
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Equation
As printed (Tabel 3, row 3, p. 8)
Ln(TAGB)= -2,99+2,35Ln(DBH)+0,44Ln(TBH)
In this library's units, ready to compute (kg)
Aboveground biomass = exp(-2.99 + 2.35 * ln(D) + 0.44 * ln(H))D- Diameter at breast height (1.3 m), cm
H- Total tree height, m
Table 1 gives DBH 7.30-29.20 cm and total height 8.20-20.92 m (n=20); the text says the models apply to 5-40 cm trees. R2 printed as 0,99 (rounded). The paper states no back-transform correction factor, so none is applied. Biomass is total aboveground (stem, branches, twigs, leaves). TBH is the total height (tinggi total).
Source
doi:10.20886/jsek.2012.9.1.1-11 · Open access · copy we read
n=20
0,99
- Trees measured
- 20
- DBH range
- 7.3–29.2 cm
- Height range
- 8.2–20.92 m
- R²
- 0.99
- Method
- log-log regression
- Where
- Peat swamp forest, Barito Selatan, Central Kalimantan
- Last checked
- 2026-11-02
Calculate
Height from
33.6
Aboveground biomass (kg)
15.8
Carbon (kg), ×0.47
57.9
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 = 10, H = 12 | 33.6 | 33.6 | Computed from the printed form hand-computed from the published form |
| D = 25, H = 18 | 346 | 346 | Computed from the printed form hand-computed from the published form |
Related
- S. teysmaniana peat swamp, ln(AGB) on DBH · Akbar 2012 · DBH
- S. teysmaniana peat swamp, ln(AGB) on DBH and wood density · Akbar 2012 · DBH + Wood density
- Shorea spp., DBH only · Basuki et al. 2009 · DBH
- Shorea genus, Vietnam, AGB from D (S1, Eq. 19) · Huy et al. 2016 · DBH
- S. teysmaniana peat swamp, ln(AGB) on DBH · same paper · Aboveground biomass
- S. teysmaniana peat swamp, ln(AGB) on DBH and wood density · same paper · Aboveground biomass