|
| Explanatory variable |
| α | β1 | β2 | β3 | Adjusted R2 |
| Regression formula 1 | X1: Crown area | Average | 6.6312 | 0.5834 |
|
| 0.5719 |
| Minimum | 6.3783 | 0.5605 |
|
| 0.5206 | ||
| Maximum | 6.9403 | 0.6007 |
|
| 0.6060 | ||
| SD | 0.1721 | 0.0119 |
|
| 0.0221 | ||
| Regression formula 2 | X1: Crown surface area | Average | 10.4153 | 0.2534 |
|
| 0.3528 |
| Minimum | 10.0644 | 0.2356 |
|
| 0.2967 | ||
| Maximum | 10.9553 | 0.2669 |
|
| 0.3854 | ||
| SD | 0.2553 | 0.0084 |
|
| 0.0231 | ||
| Regression formula 3 | X1: Crown volume | Average | 14.0008 | 0.1964 |
|
| 0.3899 |
| Minimum | 13.8079 | 0.1851 |
|
| 0.3346 | ||
| Maximum | 14.3428 | 0.2030 |
|
| 0.4204 | ||
| SD | 0.1747 | 0.0051 |
|
| 0.0221 | ||
| Regression formula 4 | X1: Crown area X2: Tree height | Average | 3.1333 | 0.3357 | 0.4583 |
| 0.7428 |
| Minimum | 2.9819 | 0.3145 | 0.4321 |
| 0.7154 | ||
| Maximum | 3.2636 | 0.3582 | 0.4747 |
| 0.7611 | ||
| SD | 0.0866 | 0.0138 | 0.0124 |
| 0.0160 | ||
| Regression formula 5 | X1: Crown surface area X2: Tree height | Average | 2.9530 | 0.1450 | 0.5761 |
| 0.7236 |
| Minimum | 2.8141 | 0.1354 | 0.5579 |
| 0.6981 | ||
| Maximum | 3.0678 | 0.1536 | 0.5922 |
| 0.7440 | ||
| SD | 0.0891 | 0.0064 | 0.0101 |
| 0.0147 | ||
| Regression formula 6 | X1: Crown volume X2: Tree height | Average | 3.6518 | 0.1121 | 0.5606 |
| 0.7301 |
| Minimum | 3.5121 | 0.1053 | 0.5427 |
| 0.7040 | ||
| Maximum | 3.8132 | 0.1195 | 0.5770 |
| 0.7524 | ||
| SD | 0.1041 | 0.0046 | 0.0102 |
| 0.0151 | ||
| Regression formula 7 | X1: Crown area X2: Crown length※ | Average | 6.0423 | 0.6694 | -0.0746 |
| 0.5805 |
| Minimum | 5.7933 | 0.6460 | -0.0944 |
| 0.5317 | ||
| Maximum | 6.3018 | 0.6922 | -0.0569 |
| 0.6101 | ||
| SD | 0.1597 | 0.0158 | 0.0115 |
| 0.0217 | ||
| Regression formula 8 | X1: Crown area X2: Crown length ratio | Average | 8.3255 | 0.6655 | −0.1330 |
| 0.6399 |
| Minimum | 7.9146 | 0.6451 | −0.1490 |
| 0.6005 | ||
| Maximum | 8.8529 | 0.6791 | −0.1162 |
| 0.6598 | ||
| SD | 0.3106 | 0.0099 | 0.0094 |
| 0.0197 | ||
| Regression formula 9 | X1: Crown area X2: Tree height X3: Crown length※ | Average | 3.1638 | 0.2829 | 0.4798 | 0.0354 | 0.7431 |
| Minimum | 3.0087 | 0.2508 | 0.4576 | 0.0129 | 0.7153 | ||
| Maximum | 3.3055 | 0.3174 | 0.4957 | 0.0453 | 0.7622 | ||
| SD | 0.0914 | 0.0175 | 0.0121 | 0.0094 | 0.0161 | ||
| Regression formula 10 | X1: Crown area X2: Tree height X3: Crown length ratio※ | Average | 2.6764 | 0.2809 | 0.5171 | 0.0367 | 0.7433 |
| Minimum | 2.4865 | 0.2476 | 0.4732 | 0.0146 | 0.7156 | ||
| Maximum | 3.0199 | 0.3149 | 0.5352 | 0.0472 | 0.7626 | ||
| SD | 0.1327 | 0.0177 | 0.0171 | 0.0093 | 0.0160 |