Tree Allometrics

Schinus molle / Aboveground biomass

Total aboveground biomass, Schinus molle, dap × ht

Aboveground biomassSchinus molle · AnacardiaceaePeruplantationRead from the original paper
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Equation

As printed (Cuadro 13 / Resumen / Conclusiones)

Ln ( BT ) = -3.3201 + 1.4834 × Ln (dap × ht)

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

Aboveground biomass = exp(-3.3201 + 1.4834 * ln(D * H))
D
Diameter at breast height (1.3 m), cm
H
Total tree height, m

Ln is natural log as printed; the Discusión notes that back-transformed log models underestimate but gives no correction factor, so none is applied. Biomass is oven-dry (103 °C) total aboveground (stem + branches + leaves), kg/tree; dap in cm, ht (total height) in m. DBH and height ranges are from Cuadro 2 (descriptive statistics of the sampled trees). Trees from a managed plantation at 2 x 2 m spacing, used to inform urban green areas.

Source
se evaluaron 44 individuos en total: 15 individuos de la especie Tecoma stans (L.) Juss. ex Kunth var. stans, 15 individuos para Grevillea robusta A. Cunn. ex R. Br, y 14 individuos para Schinus molle L.
Trees measured · Resumen
Trees measured
14
DBH range
1.3–22.9 cm
Height range
2.7–10.9 m
R²
0.99
Method
linearised regression on Ln(B), no back-transform correction stated
Where
Bosque simulado y Plantación forestal, UNALM, La Molina, Lima (238 m a.s.l.)
Last checked
2026-11-02
Calculate
Height from
11.3
Aboveground biomass (kg)
5.3
Carbon (kg), ×0.47
19.4
CO₂e (kg), ×44/12
Fitted DBH range020406080100120140510152025303540DBH (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 = 8, H = 611.311.3Computed from the printed form
hand-computed from the published form
D = 15, H = 1061.161.1Computed from the printed form
hand-computed from the published form

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