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石泉水库位于汉江上游,1974年建成。控制流域面积24,600平方公里,年平均迳流量117亿立米,正常蓄水量为4.92亿立米。最大水深50米,一般20~30米,养殖水而25,000亩。东库以发电为主,兼营航运和养鱼。库区地形狭长,干流回水在黄金峡内,距坝址72公里,河床比降为8.9‰,是个典型的河道型水库。从1975~79年春先后投放草鱼、鲢、鳙鱼种420万尾,水库鱼产量和鱼藏量不断升。家鱼能否在该库自然产卵繁殖?我们于1979~1981年进行了初步调查,获得一定结
Shiquan Reservoir is located in the upper reaches of the Han River, completed in 1974. Control basin area of 24,600 square kilometers, the average annual flow of 11.7 billion cubic meters, the normal storage capacity of 492 million cubic meters. The maximum depth of 50 meters, usually 20 to 30 meters, 25,000 acres of aquaculture water. East Bank to power generation, 兼营 shipping and fish. The terrain of the reservoir area is long and narrow. The backwater of the main stream is within the Huangjin Gorge, 72 km away from the dam site, and the riverbed ratio is 8.9 ‰. It is a typical river-type reservoir. From the spring of 1975 to the spring of 79, grass carp, silver carp and bighead carp have been put into operation for 4,200,000, and the production and storage of fish in the reservoir have been on the rise. Can domestic fish reproduce naturally in the library? We conducted a preliminary investigation from 1979 to 1981 to obtain a certain knot