9-10 Irrigation, Reservoirs, Flood Prevention, Water and Soil Conservation and Improvement of Saline-Alkaline Land |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Item | 2000 | 2002 |
Irrigated Areas (1000 hectares) | 3388 | 3501 |
Effective Irrigated Areas | 2257 | 2273 |
Irrigated Wooded-land Areas | 426 | 467 |
Irrigated Orchard Areas | 142 | 191 |
Irrigated Pasture-land Areas | 439 | 485 |
Other Irrigated Areas | 125 | 85 |
Number of Reservoirs (unit) | 373 | 393 |
Large | 6 | 9 |
Medium-sized | 69 | 80 |
Small | 298 | 304 |
CapaCity of Reservoirs (100 million cu.m) | 39.25 | 49.85 |
Large | 13.22 | 20.51 |
Medium-sized | 19.88 | 22.98 |
Small | 6.15 | 6.36 |
Water-saving Irrigated Areas (1000 hectares) | 1265.94 | 1279.47 |
Area with Flood Prevention Measures (1000 hectares) | 37.81 | 0.6 |
Area of Soil Erosion under Control (1000 hectares) | 68.78 | 40.5 |
Improved Area of Saline-Alkaline Land (1000 hectares) | 502.85 | 35.49 |
Total Length of Dikes (km) | 5129 | 5558.46 |
Area of Land Protected by Dikes (1000 hectares) | 1167 | 1151.82 |