Analysis of Runoff and Sediment Variation in Jinghe River Watershed of Loess Plateau

WANG Xi-zhi; SUO An-ning; HONG Jun; BI Xiao-li; GE Jian-ping

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Analysis of Runoff and Sediment Variation in Jinghe River Watershed of Loess Plateau

更新时间：2024-11-07

- Analysis of Runoff and Sediment Variation in Jinghe River Watershed of Loess Plateau
- Vol. 20, Issue 2, Pages: 22-25(2006)
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  CLC： S157.1P333.5
- Published：2006
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WANG Xi-zhi, SUO An-ning, HONG Jun, et al. Analysis of Runoff and Sediment Variation in Jinghe River Watershed of Loess Plateau[J]. 2006, 20(2): 22-25.
DOI：

WANG Xi-zhi, SUO An-ning, HONG Jun, et al. Analysis of Runoff and Sediment Variation in Jinghe River Watershed of Loess Plateau[J]. 2006, 20(2): 22-25. DOI：

摘要

以黄土高原中部泾河及其7个子流域为研究对象，选取了流域内8个水文站33年的径流量和输沙量以及30年的降水量数据，同时对2002年的MODIS数据进行分类处理，分析了不同流域的水沙变化差异及其地表覆被类型特征。结果表明：泾河流域近50年来的输沙量略有下降，而径流量减少比较显著；泾河及其7个子流域的水沙变化和9种地表覆盖类型空间格局的差异显著；地表植被类型较好的流域，径流量相对较大而输沙量相对较小，且径流量与输沙量的起伏波动较小，反之则流域的径流量相对较小而输沙量相对较大，且径流量与输沙量的变化明显。

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