近40～50年,水库对人民的生活产生着重要的影响。现在,世界各地都已有了水库,每年地球上还有几百个新的水库投入运行。目前,世界水库的拥有量超过6万个,库容大于6.5万 km~3,水域面积约40万 km~2,相当于11个亚速海。有些大型水库长达500km 以上,宽60km,深度可达300m。现在已很难找到一条没有水库的河流。伏尔加、第聂伯、安加拉、哥伦比亚、密苏里、巴拉那等几百条大中河流实际上已成了梯级水库。 Nearly 40 to 50 years, the reservoir has an important impact on people’s lives. There are now reservoirs all over the world, and hundreds of new reservoirs on Earth each year are in operation. At present, the world’s reservoir owns more than 60,000 reservoirs, with a storage capacity of more than 65,000 km 3 and a water area of ​​about 400,000 km 2, equivalent to 11 Azov Sea. Some large reservoirs up to 500km above, 60km wide, the depth of up to 300m. It is hard to find a river without reservoirs. Hundreds of large and medium rivers such as Volga, Dnepr, Angara, Colombia, Missouri and Parana have actually become cascaded reservoirs.