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Journal of Desert Research ›› 2022, Vol. 42 ›› Issue (2): 95-103.DOI: 10.7522/j.issn.1000-694X.2021.00093

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Effect of no-tillage in autumn on farmland wind erosion and soil properties in Bashang district

Chenyu An1,2(), Rende Wang1(), Haitao Zhou3, Qing Li1, Xinjun Zhang3, Chunping Chang2, Zhongling Guo2, Jifeng Li2   

  1. 1.Hebei Engineering Research Center for Geographic Information Application,Institute of Geographical Sciences,Hebei Academy Sciences,Shijiazhuang 050011,China
    2.Hebei Key Laboratory of Environmental Change and Ecological Construction,College of Geographical Sciences,Hebei Normal University,Shijiazhuang 050024,China
    3.Hebei Oat Technology Innovation Center,Hebei Academy of Agricultural Sciences,Zhangjiakou 075000,Hebei,China
  • Received:2021-03-21 Revised:2021-07-15 Online:2022-03-20 Published:2022-03-30
  • Contact: Rende Wang

Abstract:

No-tillage in autumn is one of the main farmland conservation tillage measures in wind erosion area of northern China. Its inhibitory effect on soil wind erosion has been widely verified, but its effect on soil properties and moisture is still controversial. Therefore, taking Kangbao county, in Bashang district, as a typical area of agro-pastoral ecotone of northern China, by field sampling and comparing the differences in topsoil properties between no-tillage in autumn and nearby tillage before and after wind erosion season, the effect of no-tillage in autumn on soil physical and chemical properties as well as its impact on soil fertilizer and moisture were studied in the paper. The results showed that, compared with tillage farmlands, the average soil loss of no-tillage of farmlands by wind erosion decreased by 73.23% and average soil moisture content increased 11.93%, reflecting the protective effect of no-till on soil and moisture. Compared with autumn tillage, no-tillage decreased the loss of fertile fine particles by preventing soil from wind erosion. The average contents of silt in no-tillage by increased 0.27%, sand decreased by 0.35% and the average content of nutrients such as organic matter and total nitrogen increased by 5.63% and 1.14% respectively within a year. Hence, no-tillage could inhibit the further desertification and barrenness of soil. The results suggested that the enforcement of no-tillage in autumn not only has the effect of soil conservation, but also has the effect of soil moisture and fertilizer conservation in Bashang area. The long-term enforcement of the no-tillage stubble measures plays an important role in inhibiting desertification and barrenness of soil and is of great significance in improving agricultural production conditions.

Key words: no-tillage in autumn, wind erosion of farmland, soil properties, conservation of soil, water and fertilizer, Bashang district of Hebei Province

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