The Three Gorges is the world’s largest hydropower station,it is located in the middle of the Yangtze River from theChongqing to Yichang,the main stream of the Yangtze River in Hubei province.The Three Gorges Dam is the most extensive and most expensive engineering project in the world .the main function of theThree Gorges Dam is shipping,generate electricity,prevent flood.[Dai Q 2012] The Three Gorges Dam destroyed the natural environment of the construction area.Three gorgesdam reservoir located at latitude 29 ° - 31 ° 50 ' longitude 106 ° 20' - 110 °30',[Lin-Hua T 2009]including 662.9KM along the Yangtze River watershed area form Chongqing toYichang between the both sides.The zone of reservoir inundation refer to 400 mile long reservoir of the Three Gorges Dam has flooded 13 cities,140 towns,1352 villagesand 100,000 acres of China’s mostfertile farm land.[Dai Q 2012]
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