Tree Allometrics

Eucalyptus camaldulensis / Foliage biomass

Eucalyptus camaldulensis leaf biomass from D²H

Foliage biomassEucalyptus camaldulensis · MyrtaceaeThailandplantationRead from the original paper
Photo of Eucalyptus camaldulensis
© MargaretRDonald · CC BY-SA · iNaturalist
Equation

As printed (Table 4)

Wl = 0.013(D2H)0.721

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

Foliage biomass = 0.013 * (D^2*H)^0.721
D
Diameter at breast height (1.3 m), cm
H
Total tree height, m

General (multi-site) equation fitted on pooled data compiled from published Thai plantation studies (theses, proceedings, reports), not on new felled trees; validated by the authors on independent harvests. D in cm, H in m, output kg dry weight per tree. AGB is the sum of stem, branches and leaves. Component symbol in the paper: Wl. The paper labels Wb as bark in its tables but as branches in the text, so no branch or bark model is entered. Caution: although Tables 3 and 4 print this leaf model, the authors state that the slope of the branch and leaf components differed significantly among spacings (ANCOVA) and that "general allometric equations for branches and leaves were excluded in the present study—only the stem and total aboveground biomass estimations were reported" (Results and discussion, Construction of general allometric equations).

Source
13 datasets with a total of 94 trees were chosen for E. camaldulensis
Trees measured · Methods, Compilation of biomass allometric equations
The ranges in the diameters and heights of trees in the dataset were 4.4–41.2 cm and 5.5–31.0 m for T. grandis, and 0.5–19.8 and 1.7–26.0 m for E. camaldulensis
Smallest DBH · Methods, Compilation of biomass allometric equations
Linear regressions of untransformed data were used in the present study because log transformed data introduced a systematic bias
method · Methods, Reconstruction of biomass allometric equations
general allometric equations for branches and leaves were excluded in the present study—only the stem and total aboveground biomass estimations were reported
Note · Results and discussion, Construction of general allometric equations, p. 51
Trees measured
94
DBH range
0.5–19.8 cm
Height range
1.7–26 m
R²
0.705
Method
Least-squares power regression on untransformed data (weighted data from 12-13 published datasets)
Where
Plantations across Thailand
Last checked
2026-11-02
Calculate
Height from
1.37
Foliage biomass (kg)
0.645
Carbon (kg), ×0.47
2.36
CO₂e (kg), ×44/12
Fitted DBH range02468101214510152025303540DBH (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 = 8, H = 101.371.37Computed from the printed form
computed from the published form
D = 15, H = 185.195.19Computed from the printed form
computed from the published form

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