我国冻融区划分与分区侵蚀特征研究

Study on the regionalization of freeze-thaw zones in China and the erosion characteristics

在综合分析土壤冻融影响因子的基础上,探讨我国气候环境条件中的温度、降水对冻融作用与冻融侵蚀的影响关系,初步确定我国冻融区的总体分布。在以往研究基础上,探讨并细化土壤冻融分级标准,据此进一步探讨我国冻融区的一级、二级分区范围,阐述各冻融区的分布规律、分布特点及各区的冻融作用与冻融侵蚀特征。研究结果可为我国冻融区侵蚀的防治提供指导作用。

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.