Analysis on the changing characteristics of sediment and water in the Bahe River

In order to research the changing law of the water and sediment in Ba River,it can be known from the nearly 50 year's data analysis that the water and sediment have a decreasing trend since the 1970s.The major factors were the human activity and the climate change,especially in the 1990s.In addition,the relationship between water and sediment shown that once the flow increased,the sediment also increased,and it will be made a harmful consequence to the construction of river course.