Bambusa procera / Branch biomass
Bambusa procera branch biomass, D only system (combination 1)
Branch biomassBambusa procera · PoaceaeVietnamnaturalRead from the original paper
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Equation
As printed (Table 5 (forms in Eq. 4-7 and Section 3.2))
Bbr = a2 × Db2 (parameters a2 0.052164 b2 2.004830)
In this library's units, ready to compute (kg)
Branch biomass = 0.052164 * D^2.004830D- Diameter at breast height (1.3 m), cm
One bamboo culm (plant) per record; D is culm diameter at breast height. Biomass in kg dry mass per plant. Component equations are fitted simultaneously (SUR) so the AGB equation is the sum of the three components. Parameters as printed in Table 5; the paper reports adjusted R2 only, so r2 is omitted.
Source
doi:10.3390/f10040316 · Open access · copy we read
A total of 83 bamboo culms covering the full range of sizes were destructively sampled with D ranging from 3.6–9.5 cm
- Trees measured
- 83
- DBH range
- 3.6–9.5 cm
- Method
- weighted nonlinear seemingly unrelated regression (GLS) fit of an additive component system
- Where
- Dak Lak and Dak Nong provinces, Central Highlands, Viet Nam
- Last checked
- 2026-11-02
Calculate
1.31
Branch biomass (kg)
0.618
Carbon (kg), ×0.47
2.26
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 = 5 | 1.31 | 1.31 | Computed from the printed form computed from the published form (coefficients as printed) |
| D = 8 | 3.37 | 3.37 | Computed from the printed form computed from the published form (coefficients as printed) |
Related
- Bambusa procera branch biomass, D and H, two-predictor system (combination 6) · Huy et al. 2019 · DBH + Height
- Bambusa procera plant aboveground biomass (culm + branches + leaves), D only system (combination 1) · same paper · Aboveground biomass
- Bambusa procera culm (stem) biomass, D only system (combination 1) · same paper · Stem biomass
- Bambusa procera leaf biomass, D only system (combination 1) · same paper · Foliage biomass
- Bambusa procera plant aboveground biomass (culm + branches + leaves), D and H, two-predictor system (combination 6) · same paper · Aboveground biomass
- Bambusa procera branch biomass, D and H, two-predictor system (combination 6) · same paper · Branch biomass
- Bambusa procera culm (stem) biomass, D and H, two-predictor system (combination 6) · same paper · Stem biomass
- Bambusa procera leaf biomass, D and H, two-predictor system (combination 6) · same paper · Foliage biomass