Tree Allometrics

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Quercus coccolobifolia: foliage (twigs with leaves) biomass

Foliage biomassQuercus coccolobifolia Trel. · FagaceaeMexiconaturalRead from the original paper
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Equation

As printed (Table 9, Quercus coccolobifolia)

Bh = exp (−1.998072) × Dn

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

Foliage biomass = exp(-1.998072) * D
D
Diameter at breast height (1.3 m), cm

Table 1 sample size and ranges for this species. Adjusted R2 (not stored): stem 0.96, branches 0.75, foliage 0.33, total 0.94 (Table 9). The paper spells the species "Q. cocccolobifolia" in Table 9.

Source
12
Trees measured · Table 1, Q. coccolobifolia
Trees measured
12
DBH range
8.6–19.1 cm
Height range
5.36–8.3 m
Method
Additive system of component equations fitted simultaneously (iterated seemingly unrelated regression)
Where
Sierra de Santa Rosa, Guanajuato (bosques de encino)
Last checked
2026-11-02
Calculate
1.6
Foliage biomass (kg)
0.752
Carbon (kg), ×0.47
2.757
CO₂e (kg), ×44/12
Fitted DBH range0123456510152025303540DBH (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 = 11.81.61.6Computed from the printed form
computed from the published form (Table 9)
D = 15.92.162.16Computed from the printed form
computed from the published form (Table 9)

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