Abstract:Concentrated flow can induce rill and ephemeral gully erosion in contour ridging systems. To better understand the morphological features of rills, deposition characteristics in contour ridging systems and their influencing factors, rainfall simulation experiments were conducted considering four factors: field slope, row grade, ridge height and seepage discharge. The results showed that a simplified power equation that considered the maximum rill depth and length predicts the erosion volume better than an equa… Show more
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