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巢湖水系位于长江中下游左岸,主体处于安徽省中部。流域西北以江淮分水岭为界,东濒长江,南与菜子湖、白荡湖、陈瑶湖以皖河流域毗邻。呈东西长、南北窄状分布。流域总面积13486平方千米(含铜城闸以下牛屯河流域404平方千米),约占安徽省总面积的9.3%。其中,巢湖闸以上9153平方千米,巢湖闸以下4333平方千米。主要包括合肥、巢湖、六安及安庆4市的16个县区。该水系主要支流发源于大别山区,自西向东流注,经巢湖,由裕溪河(及裕溪河支流牛屯河)进入长江。以巢湖为中心,四周河流呈放射状注入。较大支流有
Chaohu Lake is located in the middle and lower reaches of the Yangtze River on the left bank, the main body in central Anhui Province. The watershed northwest of the JAC watershed as the boundary, the East Bin Yangtze River, south and Cai Lake, white lake, Lake Chen Yao Lake adjacent to the river. Was something long, narrow distribution of North and South. The total area of the basin is 13,486 km2 (404 km2 including the Niutun River Basin below the copper gate), accounting for 9.3% of the total area in Anhui Province. Among them, Chaohu Lake above 9,153 square kilometers, Chaohu Lake following the 4333 square kilometers. Including Hefei, Chaohu, Lu’an and Anqing 4 cities and 16 counties. The major tributaries of the water system originate from the Dabie Mountains and flow from west to east. They flow through the Chaohu Lake and enter the Yangtze River from the Yuxi River (and the Niutun River, a tributary of the Yuxi River). Chaohu Lake as the center, surrounded by radial injection into the river. Larger tributaries have