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% |