Table 1 The basic information of traits of the three plantation stands
| Forest stands | Stand density (trees·ha− 1) | Average DBH (cm) | Average height (m) | LAI | Slope |
|---|---|---|---|---|---|
| L. principis-rupprechtii | 608 | 26.19 | 16.43 | 3.49 | 5° |
| P. crassifolia | 560 | 26.04 | 12.97 | 4.17 | 4.5° |
| P. tabuliformis | 592 | 23.69 | 12.10 | 2.68 | 8° |