Acacia cochliacantha / Aboveground biomass

Acacia cochliacantha AGB from dbh (Table 3)

Aboveground biomassAcacia cochliacantha · FabaceaeMexiconaturalRead from the original paper

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(-1.291 + 2.178 * 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). The paper lists n as 8(26)* (the starred figure counts individual branches treated as units); n_trees is therefore left out and the dbh range is that of Table 1.

Source

Gómez, J.D., Etchevers, J.D., Campo, J., Monterroso, A.I., Paustian, K., Asensio, C. (2021). Allometric relationships to estimate aboveground biomass of species in a tropical dry forest of Central Mexico. Madera y Bosques, 27(4), e2742441.

doi:10.21829/myb.2021.2742441 · Open access · copy we read

Acacia cochliacantha: n 8(26)*; β0 -1.291; β1 2.178; R2 0.89

Equation · Table 3, p. 7

R2 0.89

R² · Table 3, p. 7

Y is aboveground biomass (kg), X is dbh (cm)

Output · p. 4

DBH range: 3.5–12 cm
R²: 0.89
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

DBH (cm)

41.4

Aboveground biomass (kg)

19.5

Carbon (kg), ×0.47

71.4

CO₂e (kg), ×44/12

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%.

Inputs	Expected	We get	From
D = 10	41.4	41.4	Computed from the printed form computed from the printed coefficients
D = 20	187	187	Computed from the printed form computed from the printed coefficients

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Compare these curves

Acacia cochliacantha AGB from dbh (Table 3)

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