长江径流泥沙在世界江河中的地位

Position of runoff and sediment of Yangtze River in world rivers

在世界各大洲中选择了60条具有代表性的江河资料,对长江和世界各大江河的径流、泥沙等资料进行统计比较,得出结论:长江河长、径流量、输沙量在世界江河排位中分别为第三、四、五位,并且长江是一条具有中度含沙量的河流。借鉴类似河流的研究成果和治理经验,对长江河道演变规律的研究及河道整治具有一定的参考价值。

Selecting sixty representative rivers all over the world, their data including runoff, sediment and so on are compared. Among these rivers, the length, runoff volume and sediment transporting capacity of the Yangtze River are ranged respectively the third, the fourth and the fifth in the world. Meanwhile, the Yangtze River is considered as a river of medium sediment concentration. Making use of the research result and control experience of analogous rivers, it may be served as reference to the Yangtze River.