Table 4 Land use changes in relation to slope during 1986-2000 in the Jing River catchment
| Â | Â | Farmland | Forest | Grassland | Water | Construction land | Unused land |
|---|---|---|---|---|---|---|---|
Mean slope gradient (°) | 1986 | 10.71 | 16.68 | 14.78 | 6.35 | 5.62 | 13.54 |
| Â | 2000 | 10.74 | 16.69 | 14.78 | 6.40 | 5.58 | 15.90 |
| Â | Changes | 0.03 | 0.01 | 0.01 | 0.05 | -0.05 | 2.36 |
1986 (km2) | <15° | 14974 | 2052 | 11233 | 180 | 633 | 1.5 |
|  | 15°-25° | 4316 | 1579 | 6602 | 18 | 50 | 0.7 |
|  | >25° | 1097 | 652 | 2013 | 7 | 13 | 0.1 |
2000 (km2) | <15° | 14893 | 1986 | 11295 | 176 | 722 | 0.5 |
|  | 15°-25° | 4313 | 1529 | 6650 | 18 | 55 | 0.4 |
|  | >25° | 1095 | 643 | 2023 | 7 | 14 | 0.1 |
Land use changes (km2) | <15° | -81 | -66 | 62 | -4 | 89 | -1.1 |
|  | 15°-25° | -2 | -50 | 48 | 0 | 5 | -0.3 |
|  | >25° | -2 | -9 | 10 | 0 | 2 | 0 |