Tree Allometrics

Sonneratia alba / Foliage biomass

Sonneratia alba leaf biomass, multiple power model (D, H)

Foliage biomassSonneratia albaIndonesianaturalRead from the original paper
Photo of Sonneratia alba
© Oleg Kosterin · CC BY · iNaturalist
Equation

As printed (Table 5, Multiple Power row)

Multiple Power B = 0.000022D^(2.124) H^(2.621) 73.8% 0.717

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

Foliage biomass = 0.000022 * D^2.124 * H^2.621
D
Diameter at breast height (1.3 m), cm
H
Total tree height, m

Stand origin is not stated in the paper; classified natural from its reference to natural forest stands. Fitted on 8 of the 14 felled trees (the other 6 were held out for validation); the paper prints no DBH range for the fitting trees.

Source
A total of 14 trees were felled to serve as measurement samples: 8 for model development and 6 for model validation.
Trees measured · Results and Discussion, p. 908
73.8%
R² · Table 5, Multiple Power row
Trees measured
8
R²
0.738
Method
multiple power model B = a D^b H^c
Where
Tanah Merah Mangrove Forest, Kupang, East Nusa Tenggara
Last checked
2026-11-02
Calculate
Height from
0.707
Foliage biomass (kg)
0.332
Carbon (kg), ×0.47
1.22
CO₂e (kg), ×44/12
0246810510152025303540DBH (cm)Foliage biomass (kg)Foliage 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 = 12, H = 70.7070.707Computed from the printed form
computed from the published form (coefficients as printed)
D = 18, H = 82.372.37Computed from the printed form
computed from the published form (coefficients as printed)
D = 26, H = 109.319.31Computed from the printed form
computed from the published form (coefficients as printed)

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