Environmental resistance parameters generated by soil and semi-arid crops under inter-rill erosion and overland flow with low Reynolds numbers
2026-04-01 CATENA 2026 265(卷), null(期), (null页)
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Under overland flow with low Reynolds numbers, the resistance parameters generated by the soil and vegetation are crucial under current climate change conditions. The inter-rill erosion occurring under this overland flow can lead to inter-rill erodibility as a resistance parameter, and each type of plant generates different vegetal drag coefficients and hydraulic resistance parameters. A set of sixteen simulated rainfall events capable of generating overland flow on an Fluvisol tilled with a semiarid agroforest, cactus, under a litter layer, and under bare conditions was applied. The overland flows generated were laminar tranquil flows with very low Reynolds numbers varying from 6 to 25 on bare soil.
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