中文摘要：

在总结已有植被覆盖条件下地表输沙率模型研究成果的基础上，引入了三个描述植被特征的物理量：植被覆盖率、植被侧影盖度和植被排列系数，通过理论分析，推导出以上述三个物理量为变量的地表输沙率模型，并通过风洞实验得到验证．结果表明，该模型能够正确反映植被条件对于地表输沙率的影响，对于干旱半干旱地区的植被恢复具有理论指导意义．

英文摘要：

On the bases of the past wind erosion models for land surface with vegetation coverage, we introduce three important parameters to reflect the vegetation coverage characteristics ： vegetation coverage, vegetation lateral coverage and vegetation distribution coefficient, and a new wind erosion model is suggested by theoretic analyzing. We conducted a series of experiments in our wind tunnel with the length of 13m and cross section of 500mm ×500mm, two distribution patterns of vegetation （stager and superposition） and different heights of vegetation were considered during the wind tunnel experiments, and the soil from Bashang region was used as the experimental sand. This new model is verified by our experimental results of wind tunnel.