Abstract: The modified wind erosion model （RWEQ） was used to estimate the soil wind erosion modulus of Shiqu county, Ganzi prefecture, Sichuan province, and the spatial distribution characteristics of soil wind erosion and the effects of various factors on the soil wind erosion in Shiqu county were analyzed. The results showed that, the resistance to soil wind erosion in northern Shiqu county was better than that in southern, and the southwest was the most affected by soil wind erosion. Meteorological factors were the most important factors affecting soil wind erosion. The soil wind erosion modulus reached the maximum in the flood season in June. The spatial distribution of vegetation index was consistent with the spatial distribution characteristics of soil wind erosion modulus, and its influence was deep.

Key words: REWQ model, wind erosion, sand-fixing, Shiqu county