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长江是我国第一条大河,全长6,300公里,流域面积1,800,000平方公里,宜昌以下长江流出天险三峡进入冲积平原。枝江以下沿江两岸均筑有堤防,并与若干大小湖泊相连,是一湖泊水网地带,沿江两岸沃野千里,工业城市林立,是我国工农业精华地区.宜昌以上为上游,以下为中、下游。三峡枢纽位于宜昌市上游约五十公里处,在三峡下段西陵峡内,基本上是长江上游与中游的交界处,而葛洲坝枢纽即位于宜昌市上游附近三峡末端南津关以下三
The Yangtze River is the first large river in our country with a total length of 6,300 kilometers and a drainage area of 1,800,000 square kilometers. The Yangtze River below Yichang flows out of the Three Gorges and enters the alluvial plain. Zhijiang the following two banks are built along the banks of the embankment and is connected with a number of lakes, is a lake water network, thousands of miles along the Yangtze River fertile land, many industrial cities, is the essence of China’s agricultural and industrial areas. Yichang above the upper reaches, the following for the middle and lower reaches . The Three Gorges Dam is located about 50 kilometers upstream of Yichang City. Within the Xiling Gorge in the lower reaches of the Three Gorges, the junction of the upper reaches of the Yangtze River and the middle reaches is basically the junction of the Three Gorges Dam. The Gezhouba Dam is located below the Nanjin Pass at the end of the Three Gorges near the upper reaches of Yichang City