Alternative TitleResearch of freeze-thaw erosion in the Three-River-Source area based on GIS
史展; 陶和平; 刘淑珍; 刘斌涛; 郭兵
Corresponding Author陶和平
Source Publication农业工程学报
Other Abstract



The Three-River-Source area is an area of serious freeze-thaw erosion with high altitude, latitude and low temperature, so it plays a positive role on putting forward some suitable ecological environment plans and protection measures to carry out research of freeze-thaw erosion. Using normalization method and evaluation model, this paper takes annual temperature range, precipitation, slope, vegetation coverage and solar radiation as indexes to evaluate freeze-thaw erosion intensity. The results show that: (1) Freeze-thaw erosion is widely distributed in this area, accounting for 75.7% of total area and the largest one is Yangtze River; (2) Though the three areas are most covered by moderate erosion, they are different in proportion of five classes in each basin and
in proportion of five classes in three basins, and in general Yangtze River is the most serious area; (3) The spatial distribution seems to change from low to high alternatively as zonal distribution, but the determinant factor is different in the east and west. The west zone is influenced by vegetation coverage and solar radiation, the east zone is influenced by precipitation, slope and solar radiation, and the middle of this area is influenced by all those factors.

Keyword侵蚀 温度 模型 三江源区 冻融侵蚀强度
Indexed By北大中文核心
Funding Organization中国科学院西部行动计划项目(KZCX2-XB3-08) ; 第一次全国水利普查水土保持情况普查项目
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Document Type期刊论文
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GB/T 7714
史展,陶和平,刘淑珍,等. 基于GIS的三江源区冻融侵蚀评价与分析[J]. 农业工程学报,2012,28(19):214-221+300.
APA 史展,陶和平,刘淑珍,刘斌涛,&郭兵.(2012).基于GIS的三江源区冻融侵蚀评价与分析.农业工程学报,28(19),214-221+300.
MLA 史展,et al."基于GIS的三江源区冻融侵蚀评价与分析".农业工程学报 28.19(2012):214-221+300.
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