干旱区研究2026，Vol.43Issue(6)：1337-1348,12.DOI:10.13866/j.azr.2026.06.18
保护性耕作措施防治农田土壤风蚀的风洞测定
Wind tunnel assessment of conservation tillage measures for preventing wind erosion in farmland
摘要
Abstract
To investigate the synergistic mechanisms of three conservation tillage practices,namely no-till,stub-ble retention,and straw mulching,in controlling farmland wind erosion,and to establish an optimized allocation framework grounded in the physical processes of wind-sand movement that balances windbreak performance with resource efficiency,this study conducted in situ experiments using a mobile direct-blow wind tunnel in a se-verely wind-eroded area of Dengkou County,Inner Mongolia.Eleven treatments were tested:no-till bare soil(control);the local practice of no-till with 10 cm stubble retention;no-till with 10 cm stubble combined with 40%,50%,or 60%straw coverage;no-till with 20 cm stubble combined with 40%,50%,or 60%straw coverage;and no-till with 30 cm stubble combined with 40%,50%,or 60%straw coverage.Wind field characteristics,com-prehensive windbreak efficacy,vertical distribution of near-surface sediment transport flux,and the relative signif-icance of factors governing sediment transport flux were quantified across all treatments.The results show that protective measures markedly altered near-surface wind field structure and wind-sand flow patterns.Stubble height was the dominant factor controlling near-surface wind field structure and played a primary role in reducing wind erosion.At 50%coverage,straw mulching achieved an effective balance between resource utilization and windbreak performance.Among the factors examined,contributions to sediment transport flux followed the or-der:wind speed>stubble height>straw mulching coverage.At 60%coverage,straw mulching effectively sup-pressed particle entrainment and transport even under extreme wind conditions.Overall,the integrated strategy of no-till cultivation combined with 30 cm stubble retention and 50%-60%straw mulching demonstrates strong effi-cacy in mitigating agricultural wind erosion and offers a scalable reference for wind erosion management and corn production in arid farming regions.关键词
保护性耕作/农田风蚀/移动式风洞/输沙通量/风速廓线Key words
conservation tillage/agricultural wind erosion/mobile wind tunnel/sediment transport flux/wind speed profile引用本文复制引用
韩少钦,肖辉杰,辛智鸣,郭文芳,李俊然,敖亚宁,魏岩峻,李雪明..保护性耕作措施防治农田土壤风蚀的风洞测定[J].干旱区研究,2026,43(6):1337-1348,12.基金项目
国家重点研发计划政府间合作科技创新专项(2023YFE0121800) （2023YFE0121800）
