Pinus sylvestris / Aboveground biomass
Scots pine AGB biomass, ln-ln OLS (D only)
© Douglas Goldman · CC BY-SA · iNaturalistAs printed (Table 4, AGB section, Eq. 4, type N, p. 17)
In this library's units, ready to compute (kg)
Aboveground biomass = 1.019 * exp(-2.71 + 2.476 * ln(D))D- Diameter at breast height (1.3 m), cm
Ordinary least squares (type N) rows of Table 4 with the printed CF applied; the weighted (type W) rows are not included because their printed RMSE/CF are on a weighted scale. The paper does not say whether the printed lna values for type N are rounded further. Table 4 decimal commas read as decimal points. The abstract names the D and H form (Eq. 6) as the best-fitting; the D-only form is also given. Total AGB = stem + branches + needles; the paper also describes a one-step proportional weighting for additivity, not applied here. Biomass in kg (Eq. 1 text).
doi:10.22353/mjbs.2020.18.02 · Open access · copy we read
A total of 35 sample trees were destructively sampled
- Trees measured
- 35
- DBH range
- 4.7–55 cm
- Height range
- 4.6–23 m
- Correction factor
- 1.019 (applied)
- Method
- ordinary least squares on ln-transformed data (type N), with correction factor CF = exp(RMSE²/2)
- Where
- Northeastern Khangai and western Khentii forest regions, northern Mongolia
- 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 = 10 | 20.3 | 20.3 | Computed from the printed form computed from the published form (coefficients as printed) |
| D = 25 | 196 | 196 | Computed from the printed form computed from the published form (coefficients as printed) |
| D = 45 | 841 | 841 | Computed from the printed form computed from the published form (coefficients as printed) |
Related
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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
- Scots pine AGB biomass, ln-ln OLS (D and H) · same paper · Aboveground biomass
- Scots pine branch biomass, ln-ln OLS (D only) · same paper · Branch biomass
- Scots pine branch biomass, ln-ln OLS (D and H) · same paper · Branch biomass
- Scots pine needle biomass, ln-ln OLS (D only) · same paper · Foliage biomass
- Scots pine needle biomass, ln-ln OLS (D and H) · same paper · Foliage biomass
- Scots pine stem biomass, ln-ln OLS (D only) · same paper · Stem biomass
- Scots pine stem biomass, ln-ln OLS (D and H) · same paper · Stem biomass