Pinus radiata / Aboveground biomass
Pinus radiata total tree dry weight from DBHOB (Eq. 6, Table 4)
© Forest and Kim Starr · CC BY · iNaturalistAs printed (Table 4, dry weight columns)
In this library's units, ready to compute (kg)
Aboveground biomass = 0.2761 * D^2.0817 + 0.0386 * D^2.1674D- Diameter at breast height (1.3 m), cm
Dry-weight system with DBHOB as the only predictor; R2 for total tree 0.93. Total tree dry weight is the sum of the product (stem sawlog and pulpwood) and residue (stump, branches with needles, waste) equations, so it is aboveground including stump and foliage. DBHOB is diameter at breast height over bark at 1.3 m, in cm; weights in kg (dry). Rotation-age stands, 28 to 42 years, unthinned and thinned pooled. Product and residue equations are not added individually, nor the fresh-weight, stand-type dummy (Equations 9 and 10) or allocative systems. No correction factor is applied.
doi:10.3390/f8110439 · Open access · copy we read
the predicted value of total tree biomass is equal to the sum of the predicted values of its components
a total of 239 trees, with DBHOB ranging from 18.0 to 70.1 cm and total tree height from 18.1 to 37.3 m, were destructively sampled
- Trees measured
- 239
- DBH range
- 18–70.1 cm
- Height range
- 18.1–37.3 m
- R²
- 0.93
- Method
- system of additive nonlinear equations (product + residue), GMM
- Where
- Bathurst management area, central west slopes of New South Wales
- 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 | 167 | 167 | Computed from the printed form computed from the published form: product plus residue dry weight |
| D = 40 | 712 | 712 | Computed from the printed form computed from the published form: product plus residue dry weight |
| D = 65 | 1,969 | 1,969 | Computed from the printed form computed from the published form: product plus residue dry weight |
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- North American taxa group: Pinus ≥ 0.45 spg (Table 5) · Chojnacky et al. 2014 · DBH
- Pinus caribaea total aboveground biomass, sum of simultaneous component models · Coutinho et al. 2018 · DBH + Height + Wood density
- Pinus cembroides, additive system S2 (D and H): total aboveground biomass (sum of components) · Cuevas Cruz & Aquino Ramírez 2020 · DBH + Height
- Pinus brutia total biomass, Lebanon (Eq. 37) · de-Miguel et al. 2014 · DBH + Height
- Pinus brutia total biomass, Lebanon (Eq. 38) · de-Miguel et al. 2014 · DBH
- Pinus radiata total tree dry weight from DBHOB and height (Eq. 8, Table 4) · same paper · Aboveground biomass