西藏冻融侵蚀分级评价

doi:10.11821/xb200609002

Abstract

Abstract:

Freeze-thaw erosion is the third largest soil erosion type after water erosion and wind erosion. Up to now, being restricted by many factors, few researches on freeze-thaw erosion have been done at home and abroad, especially on the assessment method of freeze-thaw erosion. Based on the comprehensive analysis of impact factors of free-thaw erosion, this paper chooses six indexes, including the annual temperature range, annual precipitation, slope, aspect, vegetation and soil, to build the model for relative classification of freeze-thaw erosion using weighted and additive methods and realizes the relative classification of the freeze-thaw erosion in Tibet with the support of GIS software. Then a synthetic assessment of freeze-thaw erosion in Tibet has been carried out according to the relative classification result. The result shows that the distribution of freeze-thaw erosion area is very extensive, accounting for 55.3% of the total land area of Tibet. The spatial differentiation of freeze-thaw erosion with different intensities is obvious and the difference in distribution among different freeze-thaw areas is also obvious.

Key words: Tibet, freeze-thaw erosion, GIS, classification and assessment

ZHANG Jianguo,LIU Shuzhen,YANG Siquan. Classification and Assessment of Freeze-thaw Erosion in Tibet[J].Acta Geographica Sinica, 2006, 61(9): 911-918.

References

[1] Tang Keli. Soil and Water Conservation in China. Beijing: Science Press, 2003. 3-27.
[唐克丽. 中国水土保持. 北京: 科学出版社, 2003. 3-27.]

[2] Tang Keli. Characteristics and perspectives on scientific discipline of soil erosion and soil and water conservation in China. Research of Soil and Water Conservation, 1999, 6(2): 2-7.
[唐克丽. 中国土壤侵蚀与水土保持学的特点及展望. 水土保持研究, 1999, 6(2): 2-7.]

[3] Fan Haoming, Cai Qiangguo. Review of research progress in freeze-thaw erosion. Science of Soil and Water Conservation, 2003, 1(4): 50-55.
[范昊明, 蔡强国. 冻融侵蚀研究进展. 中国水土保持科学, 2003, 1(4): 50-55.]

[4] Dong Ruikun, Xu Zhaoyi, Yang Chengyong. Freeze-thaw erosion in Qinghai-Tibet Plateau. Yangtze River, 2000, 31(9): 39-41.
[董瑞琨, 许兆义, 杨成永. 青藏高原的冻融侵蚀问题. 人民长江, 2000, 31(9): 39-41.]

[5] Zhang Jianguo, Liu Shuzhen. A new way for definiting the freezing-thaw erosion area in Tibet. Geography and Geo-Information Science, 2005, 21(2): 32-34.
[张建国, 刘淑珍. 界定西藏冻融侵蚀区分布的一种新方法. 地理与地理信息科学, 2005, 21(2): 32-34.]

[6] Zhu Liping, Whalley W B, Wang Jiacheng. A simulated weathering experiment of small free granite blocks under freeze-thaw conditions. Journal of Glaciology and Geocryology, 1997, 19(4): 313-319.
[朱立平, Whalley W B, 王家澄. 寒冻条件下花岗岩小块体的风化模拟试验及其分析. 冰川冻土, 1997, 19(4): 313-319.]

[7] Qiu Guoqing, Zhou Youwu, Cheng Guodong et al. Geocryology in China. Beijing: Science Press, 2000. 15-20, 115.
[邱国庆, 周幼吾, 程国栋等. 中国冻土. 北京: 科学出版社, 2000. 15-20, 115.]

[8] Jane C Froese, Richard M Cruse, Mohammadreza Ghaffarzadeh. The mechanism of freezing and thawing erosion. Scientific and Technical Information of Soil and Water Conservation, 2001, (3): 26-28.
[Jane C Froese, Richard M Cruse, Mohammadreza Ghaffarzadeh. 冻融侵蚀机理. 水土保持科技情报, 2001, (3): 26-28.]

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Classification and Assessment of Freeze-thaw Erosion in Tibet

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