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长江以我国第一大河著名于世。长江全长约6.300公里,流域面积约180万平方公里,流域人口约4亿;总落差4,500米,水能资源蕴藏可开发量约2亿千瓦,占全国的52％;干流通航里程3,638公里,还有大小通航支流3,600多条,干支流通航里程共有7万公里左右。长江流域地下矿藏丰富,木材蓄积量约占全国的1/3,流域的工业总产值占全国的40％左右,粮食产量也约占全国的40％,其中水稻产量占全国的70％,
The Yangtze River is famous for its number one river in China. The total length of the Yangtze River is about 6.300 kilometers, the basin area is about 1.8 million square kilometers, and the basin population is about 400 million. The total gap is 4,500 meters. The water resources can be exploited for about 200 million kilowatts, accounting for 52% of the national total. There are more than 3,600 tributaries of the size of the tributaries of the total mileage of about 70,000 km. The Yangtze River Basin rich in underground mineral resources, timber reserves account for about 1/3 of the country, the basin of industrial output value accounts for about 40% of the country, grain output also accounts for about 40% of the country, of which rice production accounts for 70%