|
| Explanatory variable |
| α | β1 | β2 | β3 | Adjusted R2 |
| Regression formula 1 | X1: Crown area | Average | 9.6092 | 0.4632 |
|
| 0.6324 |
| Minimum | 9.1265 | 0.4367 |
|
| 0.5875 | ||
| Maximum | 10.2193 | 0.4888 |
|
| 0.6524 | ||
| SD | 0.3124 | 0.0145 |
|
| 0.0188 | ||
| Regression formula 2 | X1: Crown surface area | Average | 12.8289 | 0.2071 |
|
| 0.4399 |
| Minimum | 12.4174 | 0.1967 |
|
| 0.3949 | ||
| Maximum | 13.3491 | 0.2165 |
|
| 0.4777 | ||
| SD | 0.3059 | 0.0063 |
|
| 0.0235 | ||
| Regression formula 3 | X1: Crown volume | Average | 15.9813 | 0.1704 |
|
| 0.4946 |
| Minimum | 15.6750 | 0.1608 |
|
| 0.4529 | ||
| Maximum | 16.4873 | 0.1766 |
|
| 0.5272 | ||
| SD | 0.2779 | 0.0052 |
|
| 0.0215 | ||
| Regression formula 4 | X1: Crown area X2: Tree height | Average | 4.7868 | 0.3779 | 0.2992 |
| 0.7158 |
| Minimum | 4.4752 | 0.3569 | 0.2538 |
| 0.6883 | ||
| Maximum | 5.5837 | 0.3967 | 0.3186 |
| 0.7343 | ||
| SD | 0.3078 | 0.0113 | 0.0179 |
| 0.0137 | ||
| Regression formula 5 | X1: Crown surface area X2: Tree height | Average | 3.7795 | 0.1734 | 0.4549 |
| 0.6737 |
| Minimum | 3.5521 | 0.1685 | 0.4133 |
| 0.6450 | ||
| Maximum | 4.3115 | 0.1791 | 0.4706 |
| 0.6930 | ||
| SD | 0.2105 | 0.0037 | 0.0162 |
| 0.0154 | ||
| Regression formula 6 | X1: Crown volume X2: Tree height | Average | 5.0669 | 0.1399 | 0.4203 |
| 0.6880 |
| Minimum | 4.7812 | 0.1347 | 0.3794 |
| 0.6617 | ||
| Maximum | 5.7777 | 0.1448 | 0.4365 |
| 0.7072 | ||
| SD | 0.2789 | 0.0033 | 0.0160 |
| 0.0147 | ||
| Regression formula 7 | X1: Crown area X2: Crown length※ | Average | 9.7154 | 0.4472 | 0.0146 |
| 0.6304 |
| Minimum | 9.1699 | 0.4206 | 0.0034 |
| 0.5872 | ||
| Maximum | 10.2433 | 0.4813 | 0.0254 |
| 0.6507 | ||
| SD | 0.3143 | 0.0164 | 0.0074 |
| 0.0185 | ||
| Regression formula 8 | X1: Crown area X2: Crown length ratio※ | Average | 10.0781 | 0.4889 | −0.0316 |
| 0.6362 |
| Minimum | 9.7027 | 0.4645 | −0.0379 |
| 0.5891 | ||
| Maximum | 10.7685 | 0.5181 | −0.0256 |
| 0.6572 | ||
| SD | 0.3191 | 0.0152 | 0.0039 |
| 0.0192 | ||
| Regression formula 9 | X1: Crown area X2: Tree height X3: Crown length | Average | 4.5598 | 0.2987 | 0.3397 | 0.0619 | 0.7296 |
| Minimum | 4.3045 | 0.2501 | 0.2906 | 0.0515 | 0.7105 | ||
| Maximum | 5.2995 | 0.3259 | 0.3679 | 0.0822 | 0.7465 | ||
| SD | 0.2815 | 0.0188 | 0.0204 | 0.0081 | 0.0120 | ||
| Regression formula 10 | X1: Crown area X2: Tree height X3: Crown length ratio | Average | 3.4295 | 0.2978 | 0.4024 | 0.0623 | 0.7301 |
| Minimum | 3.1015 | 0.2497 | 0.3434 | 0.0521 | 0.7111 | ||
| Maximum | 4.1671 | 0.3246 | 0.4502 | 0.0821 | 0.7469 | ||
| SD | 0.2973 | 0.0186 | 0.0271 | 0.0080 | 0.0120 |