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在风洞实验室对半干旱地区 3种典型土壤进行风蚀模拟测定 ,并通过粒度分析 ,揭示了耕作土壤可蚀性颗粒的粒径范围、组合特征及不同粒组含量随侵蚀风力的变化 ,指出土壤可蚀性不仅取决于土壤的内在性状 ,而且与不同风速的外在风蚀效应密切相关 ,提出不同土壤在风蚀动力机制上具有一致性
Wind tunnel experiment was conducted to simulate the wind erosion of three typical soils in the semi-arid area. The grain size of the erodable particles in the cultivated soils was revealed through the particle size analysis. The characteristics of the combination and the variation of the content of the different grain fractions with the wind erosion were pointed out Soil erodibility depends not only on the intrinsic properties of soil, but also on the external wind erosion effects of different wind speeds. It is proposed that different soils have consistency in the dynamic mechanism of wind erosion