Pinus halepensis / Aboveground biomass
Pinus halepensis total aboveground fuel (biomass) from basal diameter, all development states
© Eduardo Martínez · CC BY · iNaturalistAs printed (Table 2 caption)
In this library's units, ready to compute (kg)
Aboveground biomass = exp(3.884) * DRC^2.318 * 1.027 / 1000DRC- Root collar / stem base diameter, cm
Total fuel here is all plant biomass of the individual (living plus dead, all size classes), pooled over four post-fire development states (5, 9, 14 and 26 years). X is basal stem diameter in cm (the paper says measured in cm; Table 2 does not repeat the unit) and Y is in grams. Individuals sampled are 10-12 per species per state; per-species n and diameter range are not stated, so left out. Equation is a species-level shrub or small-tree fuel model. The paper writes the fit as 'log Y = log a + b log X' without naming the base, but prints the back-transform as Y = exp(a) × X^b × CF (Table 2 caption), so a is taken as a natural-log intercept as the paper itself does.
doi:10.1007/s10342-023-01652-y · Open access · copy we read
P. halepensis | Total fuel | Diameter | 3.884 | 2.318 | 0.986 | 0.231 | 1.027
we measured four structural variables ... basal stem diameter, height, maximum crown diameter
The weight of fuel fractions was measured in grams.
- R²
- 0.986
- Correction factor
- 1.027 (applied)
- Method
- log-log regression with Sprugel (1983) correction factor
- Where
- Ayora, Valencia Province, eastern Spain (post-fire stands 5-26 years old)
- Last checked
- 2026-11-02
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 |
|---|---|---|---|
| DRC = 10 | 10.4 | 10.4 | Computed from the printed form hand-computed from the published form |
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