Model (ACD=) | a | b | c | \(\sigma _{1}^{2}\) | \(\sigma _{2}^{2}\) | R2 | RMSE | BIAS |
---|---|---|---|---|---|---|---|---|
1 aTCHb | 6.58±0.67 | 1.49±0.040 | 40.8 | 3.30 | 0.75 | 35.2 | -1.6 | |
2 \(a TCH^{b} \widehat {BA}^{c} \widehat {\rho }^{b_{3}}\) | See text | 0.76 | 34.3 | -1.8 | ||||
3 aTCHb(1+cCover10) | 6.27±0.64 | 1.51±0.04 | 0.93±0.16 | 40.7 | 3.02 | 0.74 | 35.9 | -2.7 |
4 \(a \sum {(CD_{i} \cdot H_{i})^{b}} \) | 0.023±0.0037 | 1.57±0.033 | 40.5 | 3.53 | 0.73 | 35.6 | 0.8 | |
5 \( a + b \cdot (\overline {CD_{i} \cdot H_{i} }) \) | 30.39±3.3 | 3.4±0.062 | 24.7 | 4.41 | 0.78 | 32.3 | -0.1 |