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JOURNAL OF DESERT RESEARCH ›› 2017, Vol. 37 ›› Issue (6): 1071-1078.DOI: 10.7522/j.issn.1000-694X.2016.00094

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A Wind Erosion Empirical Model of Farmland Applied in Bashang Area of Hebei, China

Wang Rende1, Chang Chunping2, Guo Zhongling2, Li Qing1   

  1. 1. Institute of Geographical Sciences/Hebei Engineering Research Center for Geographic Information Application, Heibei Academy of Sciences, Shijiazhuang 050011, China;
    2. College of Resource and Environment Sciences/Hebei Key Laboratory of Environmental Change and Ecological Construction, Hebei Normal University, Shijiazhuang 050024, China
  • Received:2016-05-30 Revised:2016-07-12 Online:2017-11-20 Published:2017-11-20

Abstract: There is not a wind erosion model so far that is widely accepted and can be well applied in farmland of China. A wind erosion empirical model applied in farmland of Bashang area, Hebei province was established in the study by years of field observation and wind tunnel simulation. The model was composed of wind erosivity factors, roughness interference factors and soil anti-erodibility factors and included four main elements of influencing wind erosion, which were threshold wind velocity, surface roughness, soil erodibility and soil water content. It can quantitatively estimate and predict soil loss by wind erosion for various farmland surfaces. The soil loss of farmland in the wind erosion season of 2013 was calculated using the model in the Bashang area of Hebei Province. The results showed that the average soil loss by wind erosion was 39.45 t·hm-2 on ploughed and raked field and 14.08 t·hm-2 on oat stubble field, which were close to the results obtained by other methods. Validation and revision of the model in a wider area and promoting the technology integration between this model and "3S" technology are the main work in the future.

Key words: wind erosion empirical model, farmland, wind erosivity factors, roughness interference factors, soil anti-erodibility factors, Bashang area

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