Based on the observed data of Zhengzhou southwest exurban freeway,the effects between soil erosion and rainfall are discussed with the vegetative cover rate(90%,70%,50%,30%,10%).

• 研究郑州西南绕城高速公路边坡不同土壤保持工程措施,在一定植被盖度(90%25、70%25、50%25、30%25、10%25)下,不同降雨强度对土壤侵蚀速率的影响。