[Objective] The effects of conservation tillage on soil wind erosion in an oasis irrigation area were studied. The role of conservation tillage of farmland in preventing and controlling soil erosion was evaluated to provide a theoretical basis for revealing related mechanisms.[Methods] Taking Minqin Integrated Desert Control Experimental Station in Gansu Province as a study area

based on field wind tunnel test

taking traditional tillage as the control

the effects of conservation tillage on the wind speed profile

sand flow structure (sediment discharge)

and amount of wind erosion were analyzed.[Results] In conservation tillage

the wind speed near the surface decreased. At a high wind speed

the near-surface wind speed increased uniformly with the increase in height. This was different from the rapid increase in traditional tillage

preventing the sand flow structure from showing the "elephant nose effect." The decrease of sediment discharge was most evident at 0-20 cm

and the amount of soil wind erosion decreased. With the increase of the test wind speed

the decrease in the degree of wind erosion by conservation tillage was greater.[Conclusion] Conservation tillage could effectively prevent field soil wind erosion in oasis irrigation areas. The decreasing wind speed of standing stubble was maximum

and the sediment discharge and rate of soil wind erosion were low. The standing stubble method was easy to implement and is suitable for promotion and application.