建国以来,海河流域共建成大型水库29座,总库容为216亿m~3,其中库容在10亿m~3以上的大(1)型水库9座,库容共170亿m~3,占总库容的78.9%;库容介于1～10亿m~3的大(2)型水库20座,库容共46亿m~3,占总库容的21.1%。大型水库控制了山区流域面积的 Since the founding of the People’s Republic of China, a total of 29 large reservoirs have been built in the Haihe River Basin, with a total storage capacity of 21.6 billion m 3, of which 9 are large (1) reservoirs with a storage capacity of over 1 billion m 3 and a storage capacity of 17 billion m 3, Storage capacity of 78.9%; storage capacity of 1 ~ 1 billion m ~ 3 large (2) type reservoirs 20, a total storage capacity of 4.6 billion m ~ 3, accounting for 21.1% of the total storage capacity. Large reservoirs control the area of ​​mountain basins