Table 4 Accuracy of stem curve modeling in the effective area
|
Tree group (DBH, cm) | Stem curve - radius |
Stem curve – radius (erroneous estimate excluded) | Stem curve - length |
Stem curve - length (erroneous estimate excluded) | ||||
|---|---|---|---|---|---|---|---|---|
|
RMSE (cm) (RMSE %) |
Bias (cm) (Bias %) |
RMSE (cm) (RMSE %) |
Bias (cm) (Bias %) | CLR | PHC | CLR | PHC | |
| 5–10 |
4.33 55.82% |
2.89 37.99% |
2.83 36.49% |
1.09 14.96% | 101.70% | 97.31% | 105.77% | 96.42% |
| 10–15 |
8.68 90.17% |
6.57 67.97% |
8.27 88.54% |
5.77 62.18% | 79.02% | 57.54% | 76.70% | 58.49% |
| > 15 |
6.29 31.72% |
4.02 20.28% |
5.23 26.13% |
3.01 15.06% | 78.57% | 62.85% | 79.89% | 64.30% |
| All |
6.64 45.67% |
4.46 31.52% |
5.68 39.30% |
3.43 24.48% | 80.41% | 64.35% | 80.97% | 65.27% |