| 土壤因子 | CCA1 | CCA2 |
| PH | −0.3083 | −0.3335 |
| AN | −0.2066 | 0.3598 |
| AP | −0.2154 | −0.3351 |
| AK | −0.1593 | −0.1376 |
| OM | −0.1976 | 0.4140* |
| TN | −0.1323 | 0.3714 |
| TP | 0.1458 | −0.2102 |
| TK | −0.1943 | −0.1757 |
| EC | −0.0714 | 0.2656 |
| CEC | 0.2390 | 0.5052** |
| ST | −0.2595 | 0.1563 |