Research On The Mechanics Mechanism And Model Of Water And Soil Erosion Of Slope

Soil erosion is the one of most important environment problem in the world of today,which caused by water holds dominant position.Reseach on the Mechanics mechanism of water and soil erosion of slope and compulating oerland flow and sediment yield,Analying the effective factors is necessaryBy reseach on the functional process and mechanism about rainfall splash erosion,slope erosion,runoff erosion and ditch erosion,Giving the mechanical mechanism about erosion,deriving rainfall erosion force from kinetic energy and momentum and building the mechanical model of soil partile from which derive the smallest shearing stress produced soil partical separated.giving The process control equation and motion equation about slope runoff.under no rainfall and no surface tension.Building Dynamic model of overland flow and sediment yield in slope ,by analying the effective factors about producing flow and sediment yield in slope and numerical simulation,giving some results to serve for the prediction and control of soil erosion and work for water and soil preservation.