Tree Allometrics

Quercus laurina / Foliage biomass

Quercus laurina: foliage (twigs with leaves) biomass

Foliage biomassQuercus laurina Bonpl. · FagaceaeMexiconaturalRead from the original paper
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Equation

As printed (Table 9, Quercus laurina)

Bh = exp (– 4.816123) × Dn^2.174373

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

Foliage biomass = exp(-4.816123) * D^2.174373
D
Diameter at breast height (1.3 m), cm

Table 1 sample size and ranges for this species. Adjusted R2 (not stored): stem 0.98, branches 0.94, foliage 0.92, total 0.98 (Table 9).

Source
30
Trees measured · Table 1, Q. laurina
Trees measured
30
DBH range
5.8–48.6 cm
Height range
4.35–20.6 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
4.66
Foliage biomass (kg)
2.19
Carbon (kg), ×0.47
8.04
CO₂e (kg), ×44/12
Fitted DBH range0510152025510152025303540DBH (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 = 18.64.664.66Computed from the printed form
computed from the published form (Table 9)
D = 35.819.419.4Computed from the printed form
computed from the published form (Table 9)

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