Managing sloping landscapes to control soil erosion processes due to rainfall and runoff is a relevant problem, especially when the vegetation is absent or sparse. The aim of this paper was to investigate the applicability of a theoretically resistance law for overland flow under simulated rainfall, based on a power‐velocity profile, using field measurements carried out by Li and Pan for three plots with planted forage species (Astragalus adsurgens, Medicago sativa and Cosmos bipinnatus).The relationship between the velocity profile parameter Γ, the flow Froude number and the rain Reynolds number was calibrated using the data by Li and Pan. The obtained overland flow resistance law was also verified by independent field measurements carried out by Li and Pan in the same plots with the same forage species subjected to three different treatments (intact grass control IG, no litter or leaves NLL (only the grass stems and roots were reserved) and only roots remaining OR).

中文翻译：

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评论“ C. Li和C. Pan在野外模拟降雨和入流条件下，陡坡坡地上有牧草的坡面径流侵蚀动力学”

管理倾斜的景观以控制由于降雨和径流引起的土壤侵蚀过程是一个相关问题，尤其是在缺少植被或稀疏植被的情况下。本文的目的是探讨理论上性法律的适用性陆上模拟降雨下流动，基于功率-速度曲线，利用实地测量与种植的牧草品种三幅地块（进行由李潘沙打旺，紫花苜蓿和波斯菊）。使用Li和Pan的数据校准了速度剖面参数Γ，弗洛德数和雨雷诺数之间的关系。Li和Pan在相同的地块上对相同的牧草物种进行了三种不同处理（完整的草皮对照IG，无凋落物或叶子NLL（仅草茎和保留根），仅保留剩余的根或）。