Abstract:
In this paper,based on the comprehensive analysis of the impact factors of soil freezing and thawing,the impact of the temperature and precipitation of China's climatic and environmental conditions on the freeze-thaw function and freeze-thaw erosion was discussed,and the overall distribution of freeze-thaw zones in China was defined.Based on the existing relevant research results,we explored and refined the classification standards of soil freezing and thawing,thus further explored the distributional range of freeze-thaw zones in China,finally described the regularity and characteristics of distribution and the features of freeze-thaw function and freeze-thaw erosion in the freeze-thaw zones.The results may provide the guidance for control erosion in freeze-thaw zones in China.