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Water and Sediment Variations and Their Influence Factors in the Yellow River Basin

Author(s): Yan-Gui Wang, Kang Chen, Yin Chen

Linked Author(s): Yangui Wang

Keywords: The Yellow River basin, stem river and tributaries, variation in runoff and sediment, influence factor

Abstract: In order to study the water and sediment variations in the Yellow River, annual runoff and sediment discharge in the stem river and main tributaries from 1950 to 2015 were investigated. This paper applied the cumulative curve analysis method and the Mann-Kendall test method. It is pointed that there are no obvious changing trend for annual runoff and sediment discharge of the Tangnaihai Station in the Upper Yellow River. Significant decrease trends are also observed for the other stations in the stem Yellow River. For the tributaries of the Yellow River, runoff of the Beiluohe River reduces slightly, and runoff and sediment discharge of other tributaries and the sediment discharge of the Beiluohe River reduce significantly. Combined with the characteristics of runoff and sediment in the stem river and main tributaries of the Yellow River, the influence factors such as precipitation changes, soil and water conservation, silt trapping by reservoirs, and water and sediment diversions on the runoff and sediment variations are analyzed in this paper


Year: 2017

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