土壤侵蝕侵蝕作用(Erosion)土壤侵蝕的分類土壤侵蝕的分類TypeoftheWaterErosionSheetErosion濺蝕片蝕RillEeosion細溝侵蝕RillEeosion細溝侵蝕GullyErosion溝蝕水力侵蝕(水蝕)StreambankErosionStreambankErosionErosionDamageSoilLoss水蝕造成的SoilLossPlantNutrientLossesTexturalChange質地改變StructuralDamageProductivityLoss富饒損失Engineering-StructureDamageWaterPollutionSedimentationSedimentation沉降沉積作用－沖積扇水侵蝕水的來源FallingRaindrops降雨Runningwater流動的水Gravity重力作用海岸侵蝕海岸侵蝕冰河侵蝕VegetationandWaterErosion植被和水侵蝕PrinciplesofWater-ErosionControl水侵蝕控制的原理