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首页> 外文会议>International Yellow River forum on ecological civilization and river ethics;2009 IYRF >Effects of Hillslope Runoff and Sediment on Gullyslope Erosion Process
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Effects of Hillslope Runoff and Sediment on Gullyslope Erosion Process

机译：坡面径流和泥沙对沟壑侵蚀过程的影响

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摘要

A combined method of dynamic monitoring from runoff plots with ephemeral gully catchment and simulated rainfall experiment was used to quantify erosion process and mechanisms of hillslope-gullyslope system. Soil erosion characteristics of hilllsope-gullyslope system with and without hillslope runoff were compared and analyzed; effects of runoff and sediment from hillslope on hillslope-gullyslope system were quantitatively analyzed too; soil erosion process and its mechanism of hillslope-gullyslope system were presented. The results showed that the sediment yield of gullyslope system increased 25.6%～98.1% by runoff and sediment from hillslope feeding. Runoff and sediment from hillslope had positive correlation with the net sediment of gullyslope. But had negative correlation with the sediment concentration of hillslope. The critical unit stream power is 0.004,3 m/s from the experiment.
机译：结合径流小流域的径流动态监测与模拟降雨试验相结合的方法，对山坡-沟壑系统的侵蚀过程和机理进行了定量分析。比较分析了有无坡面径流的坡面坡沟系统的土壤侵蚀特征。还定量分析了坡面径流和泥沙对坡面-沟壑系统的影响。提出了坡坡沟壑区水土流失过程及其机理。结果表明，沟坡系统的产沙量通过径流和山坡给水的沉积物增加了25.6％〜98.1％。坡面的径流和泥沙与沟渠的净泥沙成正相关。但与山坡沉积物浓度呈负相关。根据实验，临界单位流功率为0.004,3 m / s。

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