Table 4. Slope of different land-uses.
| Land-use | Total | Woodland | Orchards | Abandoned cropland | Wild grassland | Cultivated land |
| Sample sites/N | 83 | 19 | 13 | 9 | 8 | 32 |
| Slope/° | 6.65 | 11.58 a | 1.92 b | 4.22 ab | 13.00 a | 4.85 b |
| Standard deviation | 10.85 | 14.76 | 4.80 | 8.39 | 12.10 | 8.93 |
| Minimum | 0 | 0 | 0 | 0 | 0 | 0 |
| Maximum | 45.00 | 45.00 | 15.00 | 20.00 | 30.00 | 30.00 |
| Coefficient of variation % | 163.16 | 127.46 | 250.00 | 198.82 | 93.08 | 184.12 |
| Correlation between slope and SOCD/R2 | 0.170 | 0.269 | −0.169 | −0.459 | 0.480 | −0.229 |
* A different letter means a difference significant at 0.05 level. The signification of correlation between slope and SOCD all were more than 0.05 (P>0.05).