2014•Jilin Nongye Daxue xuebaoRequires access

Simulation Study on Runoff Characteristics of Slope in Black Soil

Y Wang

Abstract

Runoff parameters of black soil slope were analyzed depending on artificial rainfall simulation experiment. The results show that on black soil slope, initial runoff production time was shortened, and runoff amount and runoff coefficientwere increased as rainfall intensity and slope increased.On pre-rainfall conditions, runoff erosion characteristics of the second rainfall were stronger than the first rainfall. The time of rill formingwas shortened as slope increased.When the slope was increased to 15°, rill generated at approximately the same time, amount, length,width and depth of rillwere increased alongwith the increase of slope, and the effect of slope gradient on deposition was greater than rainfall intensity.

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Key concepts: Surface runoff, Rill, Vegetation and slope stability, Environmental science, Erosion, Hydrology (agriculture), Deposition (geology), Intensity (physics)