摘要
根据在六道沟流域采集的土样进行土壤水分对风蚀影响的风洞模拟实验结果，建立了土壤风蚀率（风蚀强度）与土壤含水率的定量关系；通过长期的各种土地类型的土壤水分监测及同步空气相对湿度观测，建立了土壤表层（０～３ｃｍ）水分含量与空气相对湿度的相关关系；进一步推导出土壤风蚀强度（风蚀率）随空气相对湿度的增加呈－８次幂函数减少的理论关系。最后，按照风蚀强度与土壤含水率的关系及土壤水分监测结果分析和比较了各种土地类型的土壤水分抗风蚀性；
In this paper, the relationship between wind erosion rate(wind erosion intensity)and soil moisture content was established by the experiment in wind tunnel,and that between soil moisture(0～3 cm depth) content and the relatibe humidity was made out through long-term soil moisture monitoring and the related observation of the atmospheric relative humidity. Then it is derived that the wind erosion rate reduces with an increase of the atmospheric relative humidity by the negative eighth power function. Finally the moisture-based resistance of soils to wind erosion for distribution of the moisture-based resistance of soil to wind ersion was also analysed according to the results of the atmospheric humidity obained from the meteorological station in Liudaogou.
出处
《中国沙漠》
CSCD
北大核心
1996年第3期275-280,共6页
Journal of Desert Research
