Table 4. Forest biometric properties and estimators from lidar metrics.
| Basal Area | Biomass1 | Biomass2 | Density | Lorey's height | Max height | Mean Crown Base Height | Mean Crown Depth | Mean DBH | Mean height | QSD | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Intercept | 97.14 | 767.07 | 1555.18 | 2985.36 | -201.95 | 65.42 | 53.78 | -151.13 | 35.91 | 56.14 | 37.87 |
| synth_actual | - | 1.09 | 1.27 | -6.26 | 0.08 | 0.14 | - | - | 0.26 | - | 0.28 |
| synth_shape | -108.21 | -612.95 | - | -3264.19 | - | - | - | -42.26 | - | - | - |
| ft_73m_0.087 | 30.04 | 407.18 | - | - | - | -53.38 | -35.11 | 19.68 | - | -52.14 | - |
| ft_42m_0.15 | -31.62 | -393.79 | -672.96 | 775.82 | - | - | - | - | -65.37 | - | -64.60 |
| ft_14m_0.46 | 21.56 | 201.34 | 414.57 | - | 14.89 | 20.88 | - | - | - | - | - |
| ft_9m_0.67 | 24.08 | - | - | - | - | -18.72 | - | - | - | - | - |
| ft_20m_0.31 | 28.89 | 134.98 | - | - | 28.03 | - | - | 30.33 | - | - | - |
| ft_6m_1.04 | -57.29 | -345.63 | -612.87 | - | - | - | - | -39.55 | - | - | - |
| entropy | - | - | -366.77 | - | 22.78 | - | - | - | - | - | - |
| PAI | - | -46.32 | -48.12 | - | 27.96 | - | -3.68 | 31.33 | - | - | - |
| gapfrac | - | - | - | -3564.75 | 784.78 | 165.24 | - | 94.51 | 409.54 | 133.68 | 407.50 |
| max_layer | - | - | 17.16 | - | - | - | - | -1.33 | - | - | - |
| layer_diff | - | - | - | - | 3.35 | - | - | 6.07 | - | - | - |
| layer_count | - | - | -20.76 | - | - | - | - | - | - | - | - |
| highmax | - | - | 9.90 | - | -2.87 | - | - | -518 | - | - | - |
| r2 | 0.75 | 0.72 | 0.72 | 0.50 | 0.88 | 0.71 | 0.45 | 0.88 | 0.66 | 0.49 | 0.70 |
| p-value | <0.001 | <0.01 | <0.01 | <0.01 | <0.001 | <0.001 | <0.01 | <0.001 | <0.001 | <0.01 | <0.001 |
| RMSE | 3.76 | 27.56 | 37.51 | 153.28 | 2.18 | 4.51 | 3.91 | 1.04 | 7.85 | 5.45 | 7.29 |
p<0.001
p<0.01
p<0.05
p>0.05
r2 values presented are adjusted r2 values because of inclusion of additional variables.