| The field experiment was conducted on the cultivated soil, sand and immature soil by using field wind tunnel. The results show: that the relationship between wind erosion quantity and wind velocity is fitled well in exponential functions for the cultivated soil, and in power functions for the sand and immature soil. There is a negative correlation between the quantity of wind erosion and the topsoil (30 cm) water content for the cultivated soil, but there is no evident dependency relation between the quantity of wind erosion and water content for sand. A large amount of fine particles in the soil is lost during the wind erosion, which is the main causation of siol particle coarsening. |