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Influence of Conservation Tillage on Wind Erosion in Farmland Soil

WANG Li-xue,SU Ling,ZHANG Huan,FANG Ming (College of Water Conservancy,Shenyang Agriculture University,Shenyang 110161,China)  
The contral effectiveness in the conservation tillage model under different coverage models was researched on soil wind erasion and the best coverage model was determined.The results showed that compared with traditional farming the conservation tillage model has high moisture content in surface layer and big terrain roughness.Different coverage models could reduce the soil loss by aeolian erosion in different degrees.Sorted by soil erosion in descending order: the traditional farming uncover and left 5cm stubble shallow scarification and straw mulching strip mulching and left 5cm stuble compaction straw mulching left 5cm stubble and mulching.Among them,the soil erosion under the model of uncovered and left 5cm stubble is second only to the traditional farming,the loss of aeolian erosion was reduced by 30.8% compared with the traditional farming.The model that left 5cm stubble and complete coverage has the best effect to resist the aeolian erosion.
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