Tree Allometrics

Conzattia multiflora / Aboveground biomass

Conzattia multiflora AGB from dbh (Table 3)

Aboveground biomassConzattia multiflora · FabaceaeMexiconaturalRead from the original paper
Photo of Conzattia multiflora
© Alexis López Hernández · CC BY · iNaturalist
Equation

As printed (Eq. 2, p. 4)

ln(Y) = ln(a) + b ln(X)

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

Aboveground biomass = exp(-3.739 + 2.819 * ln(D))
D
Diameter at breast height (1.3 m), cm

ln(Y) = b0 + b1 ln(DBH), natural log, no correction factor stated in the paper. Aboveground biomass includes foliage and small branches (trunk and crown sections were summed).

Source
Conzattia multiflora: n 8; β0 -3.739; β1 2.819; R2 0.99
Equation · Table 3, p. 7
R2 0.99
R² · Table 3, p. 7
Y is aboveground biomass (kg), X is dbh (cm)
Output · p. 4
Trees measured
8
DBH range
4.9–25.2 cm
R²
0.99
Method
Linear regression of ln(biomass) on ln(dbh)
Where
Sierra de Huautla Biosphere Reserve (Ejido El Limón), Morelos
Last checked
2026-11-02
Calculate
15.7
Aboveground biomass (kg)
7.37
Carbon (kg), ×0.47
27
CO₂e (kg), ×44/12
Fitted DBH range0200400600800510152025303540DBH (cm)Aboveground biomass (kg)Aboveground 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 = 1015.715.7Computed from the printed form
computed from the printed coefficients
D = 20111111Computed from the printed form
computed from the printed coefficients

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