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