Table 3 Land use changes in relation to elevation during 1986-2000 in the Jing River catchment.
| Â | Â | Farmland | Forest | Grassland | Water | Construction land | Unused land |
|---|---|---|---|---|---|---|---|
Mean elevation (m) | 1986 | 1317 | 1520 | 1065 | 1104 | 1200 | 1544 |
| Â | 2000 | 1314 | 1495 | 1098 | 1082 | 1175 | 1617 |
| Â | Changes | 3 | 25 | -33 | 23 | 26 | -72 |
1986 (km2) | <1000 | 1901 | 119 | 662 | 86 | 157 | 0 |
| Â | 1000-1500 | 12833 | 2645 | 12284 | 103 | 475 | 0 |
| Â | >1500 | 5653 | 1518 | 6903 | 17 | 63 | 2 |
2000 (km2) | <1000 | 1870 | 122 | 663 | 85 | 183 | 0 |
| Â | 1000-1500 | 12751 | 2569 | 12383 | 101 | 537 | 0 |
| Â | >1500 | 5680 | 1466 | 6922 | 16 | 71 | 1 |
Land use changes (km2) | <1000 | -31 | 3 | 2 | 0 | 26 | 0 |
| Â | 1000-1500 | -82 | -76 | 99 | -2 | 61 | 0 |
| Â | >1500 | 27 | -52 | 19 | -1 | 8 | -1 |