The runoff and sediment yield are strongly affected by the rainfall intensity and slope gradient.The laboratory experiment was conducted under simulated rainfalls to evaluate the effects of different rainfall intensities and slope gradients on sediment yield on the purple soil hill slope.The results show that the soil erosion processes and the changes of erosion type are closely related to rainfall intensity and slope gradient,and the sediment delivery rate is drastically increased and erratically fluctuate...
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