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首页> 外文期刊>Environmental Geology >Influence of soil and water conservation measures on reducing in frequency of hyperconcentrated flows in the Wudinghe River basin
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Influence of soil and water conservation measures on reducing in frequency of hyperconcentrated flows in the Wudinghe River basin

机译：水土保持措施对无定河流域高浓度水流减少的影响。

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摘要

Based on data of SSC, precipitation, sand-dust storms and area of soil and water conservation, a study has been made of the temporal variation in the frequency of hyperconcentrated flows in the Wudinghe River, a major tributary of the Yellow River, China. The results showed that the decreasing trend in the frequency of hyperconcentrated flows (F_h) was significant. High-flow season precipitation (P_(6-9)) decreased slightly, and annual number of sand-dust storm days (D_(ss)) decreased markedly. Correlation analysis shows that the variation in P_(6-9) had little influence on the decreasing F_h, but the decreasing D_(ss) had significant influence on the decreasing F_h The 5-year moving average of the frequency of hyperconcentrated flows (F_(h,5m) was closely correlated with the area of land terracing, the area of the land created by check dams, the area of tree planting and the area of grass planting. The results of the present study show that the frequency of hyperconcentrated flows can be significantly reduced by soil and water conservation measures. Thus, these results may be useful for decision making for the management of sediment-related disasters in the Wudinghe River basin and in the Yellow River basin.
机译：根据南海的降水，降水，沙尘暴和水土保持面积的数据，对中国黄河主要支流乌丁河的高浓度水流频率随时间的变化进行了研究。结果表明，高浓度流动频率（F_h）的下降趋势是显着的。高流量季节降水（P_（6-9））略有减少，而沙尘暴天数（D_（ss））的年数明显减少。相关分析表明，P_（6-9）的变化对F_h的减小影响很小，但D_（ss）的减小对F_h的减小影响很大。超浓缩流频率的5年移动平均值（F_（ h，5m）与土地梯田面积，止水坝创造的土地面积，树木种植面积和草木种植面积密切相关，本研究结果表明，高浓度水流的频率可以通过水土保持措施可以大幅度减少这些结果，因此，这些结果对于武定河流域和黄河流域与泥沙有关的灾害的管理决策可能是有用的。

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  • 来源
    《Environmental Geology》 |2011年第7期|p.1513-1520|共8页
  • 作者

    Jiongxin Xu; Hongbing Wang;

  • 作者单位

    Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China,Key Laboratory of Water Cycle and Related Land Surface Processes, Chinese Academy of Sciences, Beijing 100101, China;

    Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China,Key Laboratory of Water Cycle and Related Land Surface Processes, Chinese Academy of Sciences, Beijing 100101, China;

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  • 正文语种 eng
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  • 关键词

    hyperconcentrated flows •soil and water conservation; sand-dust storm •wudinghe river; loess plateau of china;

    机译：高浓度水流•水土保持;沙尘暴•无定河;黄土高原;中国;

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