The soil straw cover of farmland is a main method to prevent the soil and water erosion,it is very important to research the relation between the straw cover and the wind erosion.

• 农田地表秸秆覆盖是防止水土流失的一项主要措施,研究秸秆覆盖度与土壤风蚀、水蚀的定量关系对农田采取合理的覆盖形式有重要的指导意义。