【摘要】 通过对延津县沙质壤土原状土进行风蚀风洞模拟实验，探讨了土壤风蚀量计算中的时距问题。结果表明，前人使用“风蚀模数”概念来计算土壤风蚀量会导致较大误差，原因在于同一风蚀事件中单位时间内的风蚀量随吹蚀时间的延续而递减，在风洞实验计算风蚀量时使用“累积风蚀量”概念将会有更精确的结果。更多还原

【Abstract】 By use of wind tunnel experiment of wind erosion, the time problem in calculating soilwind erosion rate was discussed in this paper. The experimental results indicated that using the conceptof wind erosion modulus to calculate soil wind erosion rate would lead to a large variation, because thewind erosion rates decrease gradually with increasing erosion time. Our experiments showed that usingthe concept of cumulative rates of soil wind erosion would obtain a more precise result.更多还原