Tree Allometrics

Quercus sideroxyla / Foliage biomass

Quercus sideroxyla: foliage (twigs with leaves) biomass

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

As printed (Table 9, Quercus sideroxyla)

Bh = exp (– 4.613824) × Dn^2.16245

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

Foliage biomass = exp(-4.613824) * D^2.16245
D
Diameter at breast height (1.3 m), cm

Table 1 sample size and ranges for this species. Adjusted R2 (not stored): stem 0.97, branches 0.96, foliage 0.91, total 0.99 (Table 9).

Source
33
Trees measured · Table 1, Q. sideroxyla
Trees measured
33
DBH range
4.8–40.5 cm
Height range
3.55–15.7 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
3.72
Foliage biomass (kg)
1.75
Carbon (kg), ×0.47
6.41
CO₂e (kg), ×44/12
Fitted DBH range051015202530510152025303540DBH (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 = 15.53.723.72Computed from the printed form
computed from the published form (Table 9)
D = 29.815.315.3Computed from the printed form
computed from the published form (Table 9)

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