Equations / Aboveground biomass
Fagus generalised aboveground biomass, DBH (Eq. 10)
Fitted on these 2 species: Fagus grandifolia, Fagus sylvatica
As printed (Eq. 10, p. 444)
In this library's units, ready to compute (kg)
Aboveground biomass = exp(-2.073 + 2.456 * ln(D) + 0.1551^2 / 2)D- Diameter at breast height (1.3 m), cm
D is DBH in cm; output is kg dry biomass. The fitted inputs are synthetic class-mean predictions. The Greek and Spanish source equations were excluded so their raw trees could be used for validation. The printed SEE is squared and divided by 2 inside the exponent as specified in the methods; no separately printed multiplicative CF is stored. The fitted synthetic-D range is not stated.
doi:10.1051/forest:2003036 · Peer-reviewed · Open access · copy we read
equations for aboveground biomass (MT)
for Fagus genus.
Fagus grandifolia
Fagus sylvatica L.
Biomass is expressed in kg, diameter in cm, and height in m.
were log-transformed and a generalised equation
where CF = SEE2/2 is the correction factor
0.992
0.1551
USA, Maine
EU, Netherlands Centre
- R²
- 0.992
- Residual SE
- 0.1551
- Method
- log-log regression on predictions from published equations
- Where
- Europe and eastern North America (source equations)
- Last checked
- 2026-11-05
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 | 200 | 200 | Computed from the printed form Computed from the printed log-model coefficients and SEE²/2 correction. |
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