Equations / Height
D. stocksii culm height from diameter at breast height (H-D model, Table 9)
As printed (Methods, H-D relationship)
In this library's units, ready to compute (m)
Height = 1.55 * D^1.18D- Diameter at breast height (1.3 m), cm
Culm-level height model for a bamboo, intended by the authors to fill missing culm heights. D is culm diameter at breast height (cm), H culm height (m); units taken from Table 3 headings, not restated beside the equation. Fitted on 80% of the sample, so n is not stored; Adj. R² is printed but not stored. The paper's biomass models (Tables 5 and 7) predict fresh weight, not dry biomass, and were not added.
doi:10.1038/s41598-022-11394-3 · Open access · copy we read
D. stocksii 1/D0.41 1.55 ± 0.21 1.18 ± 0.09 0.76
Culm diameter (cm) Culm height (m)
- Method
- Weighted maximum-likelihood nonlinear power model H = aD^b (nlme), fitted on 80% of the data
- Where
- Western Himalayan foothills, Uttarakhand (Dehradun and Pantnagar)
- 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 = 6 | 12.8 | 12.8 | Computed from the printed form computed from the Table 9 coefficients |
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