Abstract:Soil was collected from Taipusi County,Inner Mongolia,for wind tunnel experiment.Results indicate that different cultivation patterns result in objective difference in wind erosion.In the wind tunnel experiment,seven cultivation patterns were simulated with the soil,such as subsoiling,deep plowing,plowing and scrunching,10 cm high wheat stubbles,10 cm high buckwheat stubbles,10 cm high benne stubbles,and no-stubble.Among them,the pattern of plowing and scrunching was the highest in wind erosion rate,being 124.8gm-2 min-l,whereas the pattern of benne stubbles the lowest,being 15.14 g m-2 min-1.The seven farming patterns were in the order of plowing and scrunching>no-stubble>subsoiling>10 cm high stubble of buckwheat>deep plowing>10 cm high stubble of wheat>10 cm high stubble of benne in average wind erosion rate.The relationship between wind erosion rate and wind speed was analysed,showing that in terms of effect of wind erosion control,the patterns of plowing and scrunching and no-stubble were the poorest and the patterns of benne stubbles,wheat stubbles and plowing were the best,and the patterns of subsoiling and buckwheat stubbles were medium.The conclusion drawn in this paper is of some significance for reference in controlling wind erosion in dryland agriculture in the agro-grazing ecotone.