Fagus sylvatica / Aboveground biomass
European beech AGB, RIM, Dataset #4, D and H
© Rebecca Gimenez Husted · CC BY · iNaturalistAs printed (Table 5, European beech, RIM, Dataset #4, ln(D),ln(H) (Equation 3; back-transformed as Equation 5))
In this library's units, ready to compute (kg)
Aboveground biomass = 1.0109 * exp(-2.9793 + 2.1191 * ln(D) + 0.6512 * ln(H))D- Diameter at breast height (1.3 m), cm
H- Total tree height, m
Fit on Dataset #4 (generic + reduced site sample of 7 trees). Whole-tree dry AGB including foliage (stem and branches with leaves/needles weighed and dried). Equation form AGB = exp(β0)·D^β1·(H^β2)·CF with CF = exp(σ²/2) printed in Table 5 and applied here. D in cm, H in m, output kg (units not restated beside Table 5; stated in Table 1 for D, H, AGB). For RIM models the parameters printed are those retained for the Șinca site. Fit ranges are those of Dataset #4 (Table 4: generic trees plus the 7 smallest site trees).
doi:10.3390/f11111136 · Open access · copy we read
D range (cm) 5.2–62.1
H range (m) 6.2–33.0
151 (i.e., 144 + 7) / 109 (i.e., 102 + 7)
- Trees measured
- 151
- DBH range
- 5.2–62.1 cm
- Height range
- 6.2–33 m
- Residual SE
- 0.1474
- Correction factor
- 1.0109 (applied)
- Method
- random intercept mixed model on log-log data (generic plus site-specific trees); estimates for the Șinca site
- Where
- Șinca virgin forest, Romania
- 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 = 20, H = 16 | 179 | 179 | Computed from the printed form computed from the published form (coefficients as printed) |
| D = 50, H = 30 | 1,875 | 1,875 | Computed from the printed form computed from the published form (coefficients as printed) |
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