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Simulated rainfall experiments were conducted to investigate the effect of Astragalus adsurgens roots and canopy on water erosion yield, erosion processes and soil resistance to erosion. Experiments were conducted on grass, root and bare slopes, with sandy soil from a water–wind crisscrossed erosion region of the Loess Plateau, China. A. adsurgens coverage on grass slopes was approximately 40%. There...
Vegetation plays an important role in soil erosion control, but few studies have been performed to quantify the effects of vegetation stems on hydraulics of overland flow. Laboratory flume experiments were conducted to investigate the potential effects of vegetation stems on Reynolds number, Froude number, flow velocity and hydraulic resistance of silt‐laden overland flow. Cylinders with diameter...
A roll wave is frequently observed in overland flow and it can accelerate the soil erosion on slopes. However, the feedback effect of eroded sediment on roll wave has not been studied. The aim of this study was to investigate the response of roll wave to sediment concentration and overland flow hydraulics on steep slope. The experiment was carried out in a hydraulic flume. The unit flow rate varied...
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