Arbutus bicolor total aboveground biomass

Aboveground biomassArbutus bicolor · EricaceaeMexiconaturalRead from the original paper

Equation

As printed (Table 2, p. 12)

Wt = ΣWi

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

Aboveground biomass = (0.06438 * D^1.66448 * H^0.86489) + (0.00328 * D^1.51833 * H^0.95083) + (0.02125 * D^1.81216 * H^0.8198) + (0.00698 * D^1.50325 * H^0.84794)

D: Diameter at breast height (1.3 m), cm
H: Total tree height, m

Equation as printed in the Table 2 system for this taxon; d is DBH in cm, h total height in m, output in kg dry mass. R² is the 10-fold cross-validation value. Total AGB is printed as Wt = sum of the four components (stem wood, stem bark, branches, foliage); the expression is that sum of the four printed equations. Table 1 prints a maximum height of 2.5 m against a mean of 8.9 m for this species, which is inconsistent, so the height range is left out.

Source

Vargas-Larreta, B., López-Sánchez, C.A., Corral-Rivas, J.J., et al. (2017). Allometric Equations for Estimating Biomass and Carbon Stocks in the Temperate Forests of North-Western Mexico. Forests, 8(8), 269.

doi:10.3390/f8080269 · Open access · copy we read

0.06438d1.66448h0.86489

Equation · Table 2, p. 12

0.00328d1.51833h0.95083

Equation · Table 2, p. 12

0.02125d1.81216h0.8198

Equation · Table 2, p. 12

0.00698d1.50325h0.84794

Equation · Table 2, p. 12

Wt is the total tree AGB (i.e., the sum of all the tree biomass components)

Output · Section 2.3.1

R2 0.95 (cross-validation)

R² · Table 2, p. 12

(49)

Trees measured · Table 1

Trees measured: 49
DBH range: 7.9–44.8 cm
R²: 0.95
Method: Power-law component equations fitted simultaneously by generalized method of moments (additive system)
Where: Durango, Sierra Madre Occidental
Last checked: 2026-11-02

Calculate

DBH (cm)Height (m)

Height from

126

Aboveground biomass (kg)

59.4

Carbon (kg), ×0.47

218

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 = 20, H = 12	126	126	Computed from the printed form computed from the Table 2 equations (sum of the four components)
D = 35, H = 18	462	462	Computed from the printed form computed from the Table 2 equations (sum of the four components)

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Arbutus bicolor branch biomass (wood and bark) · same paper · Branch biomass
Arbutus bicolor foliage biomass · same paper · Foliage biomass
Quercus total aboveground biomass · same paper · Aboveground biomass
Quercus branch biomass (wood and bark) · same paper · Branch biomass
Quercus foliage biomass · same paper · Foliage biomass
Pinus total aboveground biomass · same paper · Aboveground biomass
Pinus branch biomass (wood and bark) · same paper · Branch biomass
Pinus foliage biomass · same paper · Foliage biomass

Arbutus bicolor total aboveground biomass

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