Equations / Branch biomass
Branch biomass, Eucalyptus saligna young plantation, dbh only
Branch biomassEucalyptus saligna · MyrtaceaeEcuadorplantationRead from the original paper
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Equation
As printed (Table 2)
Ln(B) = −3.63 + 2.37∗Ln(dbh)
In this library's units, ready to compute (kg)
Branch biomass = exp(-3.63 + 2.37 * ln(D))D- Diameter at breast height (1.3 m), cm
Ln is the natural log as printed. Published without correction factor (Table 3 compares with and without CF; the authors give the model without CF, so none is applied). dbh in cm, biomass in kg/tree.
Source
doi:10.3390/ijpb16020039 · Open access · copy we read
the research involved 46 trees
These trees had a dbh between 5.9 and 21.0 cm and 5.4 to 14.8 m of total height (ht).
- Trees measured
- 46
- DBH range
- 5.9–21 cm
- Height range
- 5.4–14.8 m
- R²
- 0.6
- Method
- OLS on Ln(B) vs Ln(dbh); no correction factor applied
- Where
- Tunshi Experimental Station, ESPOCH, Chimborazo (Lower Montane thorny steppe)
- Last checked
- 2026-11-02
Calculate
3.663
Branch biomass (kg)
1.722
Carbon (kg), ×0.47
6.313
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 = 8 | 3.66 | 3.66 | Computed from the printed form hand-computed from the published form |
| D = 15 | 16.2 | 16.2 | Computed from the printed form hand-computed from the published form |
Related
- Eucalyptus globulus branch (>4 cm) dry weight (Cuadro 2) · Prado Donoso & Alarcón Maya 1991 · DBH + Height
- Leaf biomass, Eucalyptus saligna young plantation, dbh only · same paper · Foliage biomass
- Stem biomass, Eucalyptus saligna young plantation, dbh only · same paper · Stem biomass
- Total aboveground biomass, Eucalyptus saligna young plantation, dbh only · same paper · Aboveground biomass