Equations / Aboveground biomass
Guadua weberbaueri and G. sarcocarpa culm AGB from DBH (DBH-only model)
As printed (Table 1, DBH Model row)
In this library's units, ready to compute (kg)
Aboveground biomass = -7.208 + 2.875 * DD- Diameter at breast height (1.3 m), cm
Per-culm (ramet) aboveground biomass (culm, branches and leaves), linear in DBH; it goes negative below about 2.5 cm DBH. The paper reports Adj. R2 = 0.79 and RMSE = 3.86 (Table 1), not stored as r2 because it is adjusted. Output unit kg is read from the kg-per-ramet results and figure axes; the paper does not label the equation itself. The paper also gives complete (DBH, culm length, branch counts) and field (DBH, branch count) models, not added since they need variables outside the canonical list. Preprint, not peer reviewed.
doi:10.1101/129262 · Open access · copy we read
278
1.8 - 8.1
- Trees measured
- 278
- DBH range
- 1.8–8.1 cm
- Method
- least squares linear regression
- Where
- Madre de Dios and Ucayali, southeastern Peru
- 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 = 5 | 7.17 | 7.17 | Computed from the printed form hand-computed from the published form |
Related
- Guadua culm AGB from dbh, weighted linear model (Model 2, Table 4) · Camargo García et al. 2024 · DBH
- Guadua culm AGB from dbh, weighted power model (Model 7, Table 7) · Camargo García et al. 2024 · DBH