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梅山水库是淮河流域大型山谷水库之一,以防洪为主,同时兼筹灌溉、水力发电,并适当改善下游航运,是多目标开发综合利用的水库。水库位於淮河中游南岸主要支流史河的上游,东邻渒河,西与史河大支流灌河隔岭为界,南以大别山隔岭与长江流域相郑,北为史河丘陵岗地。水库流域南北长70多公里,东西宽40多公里,全部在安徽省金寨县境内。控制流域面积达2,150平方公里,占史河流域面积的42％,史灌河流域面积的31％,约占金寨县总面积的79％。
Meishan Reservoir is one of the large valley reservoirs in the Huaihe River Basin, mainly flood control, irrigation and hydroelectric power at the same time, and appropriate to improve the downstream shipping, is a multi-objective reservoir development and utilization. The reservoir is located in the upper reaches of the historical tributary of the main tributary of the south bank of the middle reaches of the Huaihe River. It borders the Bahe River in the east, the Guanhe River, the major tributary of the Shihe River in the west, borders the Dalinghe River in the south with the Changjiang River in the south and the hilly hills in the river in the north. Reservoir basin more than 70 kilometers long from north to south, east-west width of more than 40 kilometers, all in Jinzhai County in Anhui Province. The control basin covers an area of 2,150 square kilometers, accounting for 42% of the total area of the Shihe River Basin and 31% of the area of the Shihe River Basin, accounting for 79% of the total area of the Jinzhai County.