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Journal of Desert Research ›› 2025, Vol. 45 ›› Issue (4): 24-33.DOI: 10.7522/j.issn.1000-694X.2025.00214

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The impact of protective tillage on wind erosion of farmland in the Horqin Sandy Land

Weichun Liu1(), Yulin Li2(), Li Cheng2, Haifu Fang2   

  1. 1.Kulun Banner Agricultural Technology Extension Center,Kulun Banner 028200,Inner Mongolia,China
    2.Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China
  • Received:2025-05-26 Revised:2025-07-10 Online:2025-07-20 Published:2025-08-18
  • Contact: Yulin Li

Abstract:

Spring wind erosion is a major driver of farmland soil degradation in arid and semi-arid regions, posing significant threats to crop productivity and ecological stability. To elucidate the effects of different tillage practices on spring wind erosion, a two-year field experiment (2023-2024) was conducted in a typical aeolian-sensitive area of Horqin Sandy Land. Four tillage treatments were established: spring-sown oat followed by buckwheat (YQ), autumn-sown winter rye followed by buckwheat (HQ), no-tillage maize with stubble retention (MY), and conventional spring plowing and maize sowing (FY). Temporal and vertical variations in aeolian sediment flux and wind erosion amount were systematically analyzed, along with their relationships to wind speed, soil moisture, and cumulative precipitation. The results showed that FY treatment exhibited the highest erosion intensity, with total wind erosion amounts being 1.57, 2.11, and 4.22 times higher than MY, YQ, and HQ treatments, respectively. Wind erosion was mainly concentrated in the 0-60 cm surface layer and decreased significantly with height. Wind speed was positively correlated with erosion amount, while soil moisture and precipitation were negatively correlated, with moisture-related variables exerting a stronger regulatory effect. Protective tillage practices mitigated erosion through multiple pathways including stubble cover, early crop canopy development, and enhanced water retention. This study demonstrates that no-tillage and crop rotation strategies effectively reduce spring wind erosion risk and are well-suited for widespread application in northern wind-prone agricultural zones. These findings provide practical implications for soil conservation and sustainable farmland management.

Key words: wind erosion, conservation tillage, soil moisture, wind speed, precipitation, farmland management

CLC Number: