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长江是一条雨洪河流,上中下游均有洪水灾害。枝城以下的中下游洪水灾害较严重,其中以荆江地区最突出。目前上荆江洪水位已高出北岸地面10余米。如在汛期坐船经过这段,可以看到沙市、郝穴等城市房子的屋顶竟在水面线以下。大堤一旦决口,后果不堪设想。长江洪水来源比较多,川江是其最主要的组成部分。据本世纪几个大水年资料,长江主汛期7、8两月,宜昌以上来水量占城陵矶洪
The Yangtze River is a rain-fed river with floods in the middle and lower reaches. Below the Zhicheng floods in the lower reaches of the more serious, of which the most prominent Jingjiang area. At present, Jingjiang flood level has been more than 10 meters above the North Shore ground. As in the flood season after this period by boat, you can see the city of Shashi, Hao Xue and other urban roof actually below the water line. Once the embankment burst, the consequences could be disastrous. Yangtze River flood more sources, Chuanjiang is its most important part. According to several large water years of this century, the main flood season in Yangtze River in July and August, Yichang and above accounted for Chenglingjihong