Tree Allometrics

Bambusa procera / Aboveground biomass

Bambusa procera plant aboveground biomass (culm + branches + leaves), D and H, two-predictor system (combination 6)

Aboveground biomassBambusa procera · PoaceaeVietnamnaturalRead from the original paper
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Equation

As printed (Table 4 (forms in Eqs. 16-19))

AGB = Bcu + Bbr + Ble = a1 × (D2H)b1 + a2 × (D2H)b2 + a3 × Db3 (parameters Bcu = a1 × (D2H)b1: a1 0.02269 b1 0.90703; Bbr = a2 × (D2H)b2: a2 0.02015 b2 0.72251; Ble = a3 × Db3: a3 0.03420 b3 1.67330)

In this library's units, ready to compute (kg)

Aboveground biomass = 0.02269 * (D^2 * H)^0.90703 + 0.02015 * (D^2 * H)^0.72251 + 0.03420 * D^1.67330
D
Diameter at breast height (1.3 m), cm
H
Total tree height, m

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 4; the paper reports adjusted R2 only, so r2 is omitted.

Source
A total of 83 bamboo culms covering the full range of sizes were destructively sampled with D ranging from 3.6–9.5 cm, with H of 6.1–25.4 m
Trees measured · Section 2.3
Trees measured
83
DBH range
3.6–9.5 cm
Height range
6.1–25.4 m
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
Height from
5.75
Aboveground biomass (kg)
2.7
Carbon (kg), ×0.47
9.91
CO₂e (kg), ×44/12
Fitted DBH range050100150200250510152025303540DBH (cm)Aboveground biomass (kg)Aboveground biomass

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%.

InputsExpectedWe getFrom
D = 5, H = 125.755.75Computed from the printed form
computed from the published form (coefficients as printed)
D = 8, H = 2019.619.6Computed from the printed form
computed from the published form (coefficients as printed)

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