TEMPORAL AND SPATIAL VARIATIONS IN WATER FLOW AND SEDIMENT LOAD OF RIVERS IN CHINA

摘要：

The temporal and spatial variations in water and sediment loads of rivers in China were analyzed by using data of long-term annual runoff and sediment loads from the furthest downstream hydrological stations of 10 large rivers.The data series at most gauging stations were over 50 years.Long-term precipitation data from representative stations across China was also presented in the paper for comparing the effect of climate changes.Effects of the influence factors for the variations in water and sediment loads were shown by using examples of the upper Yangtze River，middle Yellow River，Three Gorges Project，Xiaolangdi Reservoir and Guanting Reservoir.It shows that there was no obvious effect of change in precipitation on annual runoff and sediment load of major rivers in China.Human activities such as soil and water conservation and dam construction are main causes for the reduced sediment load in rivers.

关键词： Sediment load runoff Yangtze River Yellow River

作者: Hu Chunhong Liu Cheng Zhou Zhide

作者单位: China Institute of Water Resources and Hydropower Research.Beijing,100038,China International Resear International Research and Training Center on Erosion and Sedimentation.Beijing,100044, China

会议类型: 国际会议

会议名称: High-level International Forum on Water Resources and Hydropower(第一届国际水利水电高层论坛)

会议地点: 北京

会议语种:英文

页码: 418-429

在线出版日期: 2008-10-17（万方平台首次上网日期，不代表论文的发表时间）