草带分布对黄土坡面产流和产沙的影响

Impact of Grassland Distribution on Runoff and Sediment Yield on Loess Slope

为了研究草带设置方式对坡面水土流失治理效果的影响,文章通过人工模拟降雨试验,分析草带分布位置对水土保持效果的影响。结果表明:草带在边坡中下部的减沙和蓄水功能好,径流侵蚀对下坡的影响最低,草带位于上坡中下部可降低径流的加速速率,坡面的径流量和含沙量明显减小,能较好防止土壤侵蚀。以上研究为防止坡面土壤侵蚀提供参考。

In order to study the effect of grass-belt arrangement on soil and water loss control on slope,the effect of grass-belt distribution on soil and water conservation by artificial simulated rainfall experiment is analyzed in this paper.The results show that the grass belt in the middle and lower part of the slope has a good function of sediment reduction and water storage.The influence of runoff erosion on the downhill slope is the lowest..The grass belt located in the middle and lower part of the upper slope can reduce the acceleration rate of runoff,and the runoff and sediment content of the slope can be significantly reduced,which can better prevent soil erosion.The above research provides reference for preventing soil erosion on slope.