Euterpe precatoria / Aboveground biomass
Euterpe precatoria aboveground mass from D2Hrho
As printed (Table 2, row "The present study")
In this library's units, ready to compute (kg)
Aboveground biomass = 0.167 * (D^2 * Hstem * rho)^0.883D- Diameter at breast height (1.3 m), cm
Hstem- Palm stem height, ground to the lowest leaf, m
rho- Wood density (oven-dry mass / green volume), g/cm³
H is stem height from the stem base to the tip of the meristem (palm, fronds not included), mapped to canonical H. rho is the measured stem specific gravity (oven-dry mass / green volume), which the authors found rises with size, so applying this to unmeasured palms needs a rho estimate. Dry mass (fresh mass converted with component water content, dried at 65 C). SMA fit, no correction factor stated. Recommended: best predictor for Ma (adjusted R2 0.983 in Table 1). Table 2 prints the coefficients as 0.167 and 0.883; Table 1 gives ln g = -1.79 and h = 0.88 for the same relation. Palm height is measured from stem base to the meristem tip, fronds excluded; mapped to Hstem (closest canonical variable), not total height.
doi:10.3390/f6020450 · Open access · copy we read
We harvested twenty palms
D ranged from 3.9–12.7 cm and H ranged from 2.3–16.4 m
- Trees measured
- 20
- DBH range
- 3.9–12.7 cm
- Height range
- 2.3–16.4 m
- Method
- Power function fitted on ln-ln by standardized major axis (SMA)
- Where
- Terra-firme forest at the INPA forest-management field station, ~60 km NW of Manaus, Amazonas
- Last checked
- 2026-11-02
Shaded: the DBH range the model was fitted on. Other inputs held at the values above.
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 = 8, rho = 0.4, Hstem = 10 | 22.3 | 22.3 | Computed from the printed form computed from the published form (Table 2) |
| D = 12, rho = 0.5, Hstem = 15 | 79.7 | 79.7 | Computed from the printed form computed from the published form (Table 2) |
Related
- Euterpe precatoria AGB from stem height (linear) · Goodman et al. 2013 · Stem height
- Euterpe precatoria stem mass from D2Hrho · same paper · Stem biomass