【摘 要】
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Variation in sediment flux of the Yellow River has received considerable attention due to its drastic reduction during past several decades.This paper prese
【机 构】
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Institute of Soil and Water Conservation,Northwest A&F University,26 Xinong Road,Yangling,712100,Sha
【出 处】
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The 6th International Symposium on Larger Asian River(第六届亚洲大
论文部分内容阅读
Variation in sediment flux of the Yellow River has received considerable attention due to its drastic reduction during past several decades.This paper presents a detailed investigation on the spatial and temporal changes of sediment flux from 1950 to 2009 using observations at both mainstream and tributary stations in the Yellow River Basin.Significant decreasing trends (p<0.05) for sediment load were detected at most of the mainstream stations except for Tangnaihai station in the upper reaches.The Tongguan station presented the most significant decreasing trend with reduction rate of 27.0 Mt/yr.Annual sediment flux displayed abrupt reduction from 1985 due to the construction of Longyangxia Reservoir.Spatial pattern of sediment yields indicated that the Loess Plateau contributed to approximately 90% of sediment to the Yellow River.
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