Abstract:Wind erosion is very severe in some regions of Northern China. This study was conducted to determine wind-resistance of fields planted with winter rapeseed using a simulated wind tunnel experiment. Treatments included four typical farmland surfaces, i.e., winter rapeseed, winter wheat, wheat stubble without crop, and spring seeding of rapeseed; all being in Hexi Corridor, Northern China., The results showed that the degrees of roughness for winter rapeseed, winter wheat, wheat stubble and spring seeding were 4.2, 4.1, 3.9, and 0.7, respectively; starting wind speeds were 14, 13, 12, and 6 m?s-1, respectively; mean values of modulus of wind erosion were 22.3, 23.3, 42.5, and 543.6 kg?hm-2?h-1, respectively; and the rates of transportation were 0.1, 0.1, 0.2, and 23.3 g?m-2?min-1, respectively. Furthermore, by that the roughness and the starting wind speed change from bigger to little, and that the modulus values of wind erosion and rates of transportation change from little to bigger, Based on these four parameters described above, the wind erosion-resistance of these four farmland surfaces can be ranked in order of: winter rapeseed > winter wheat > wheat stubble > spring seeding. Our results suggest that in order to reduce soil wind erosion, desertification and the sources of sand and dust storms, in the windy regions of Northern China, one should firstly adapt those crops living through the winter periods, including winter rapeseed and winter wheat, especially winter rapeseed; and secondly one should decrease the area of spring seeding as much as possible; and thirdly spread wheat stubble area to the areas where spring wheat has been traditionally planted using tillage practices.