| 垦殖率(%) | 坡度(˚) | 海拔高度(m) | ||||
| Max | Min | Average | Max | Min | Average | |
| >70 | 12 | 0 | 0 | 392 | −3 | 22 |
| 40~70 | 20 | 0 | 1 | 774 | −1 | 45 |
| 20~40 | 23 | 0 | 5 | 829 | −1 | 133 |
| ≤20 | 31 | 0 | 10 | 1313 | −1 | 240 |