Tree Allometrics

Avicennia lanata / Aboveground biomass

Avicennia lanata Total aboveground biomass from D30 (Table 1)

Aboveground biomassAvicennia lanata · AcanthaceaeIndonesianaturalRead from the original paper
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Equation

As printed (Table 1, p. 401)

D30 W 0.0862 2.4243 0.9743

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

Aboveground biomass = 0.0862 * D30^2.4243
D30
Stem diameter at 30 cm, cm

Form Y = g X^h, no correction factor stated. The paper does not state units in the text; DBH in cm and biomass in kg are read from Table 2 and the axis labels of Figures 2 and 3. The DBH range of the 13 harvested trees is not stated (Table 2 describes the stand), so no range is given. Young natural regeneration: the stand census in Table 2 ran from 2.7 to 9.4 cm DBH and the stand was under 10 m tall (Section 2.1). Total W is the sum of stem, branch and leaf biomass (Eq. 4), so it includes foliage.

Source
A total of 13 individuals of A. lanata with various DBH sizes was collected
Trees measured · Section 2.2, p. 400
W = ∑ Ws + Wb + Wl
Output · Eq. 4, p. 401
Trees measured
13
R²
0.9743
Method
power-law regression Y = g X^h
Where
In-active pond, Muna Regency, Southeast Sulawesi
Last checked
2026-11-02
Calculate
1.24
Aboveground biomass (kg)
0.581
Carbon (kg), ×0.47
2.13
CO₂e (kg), ×44/12
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
D30 = 31.241.24Computed from the printed form
computed from the published form Y = g X^h
D30 = 66.646.64Computed from the printed form
computed from the published form Y = g X^h
D30 = 917.717.7Computed from the printed form
computed from the published form Y = g X^h

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