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Proceedings Paper

The impact of climatic changes on permafrost degradation in source region of the Yangtze River
Author(s): Jin Chen; Dongqing Li; Qingzhou Meng; Guowucai Yong
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Paper Abstract

During the past fifty years, permafrost in source region of the Yangtze River (SRYR) has been degrading at a rapid rate due to the influence of increasing human activities and climatic changes. As we all know, the population density in SRYR is not more than one person per square kilometer, so impact of human activities on permafrost is far less than that of climatic changes. Increase of air temperature has resulted in an increase in ground temperature, deepening of permafrost table and shrinkage of permafrost area. In addition to air temperature, many other meteorological factors especially sunshine duration and annual snow cover also have a direct effect on permafrost temperature and can modify the effect of changes in air temperature. In this paper, we analyzed the status of permafrost degradation and the variations of air temperature, sunshine duration and snow cover, pointed out the relationship between permafrost degradation and climatic changes.

Paper Details

Date Published: 3 November 2008
PDF: 10 pages
Proc. SPIE 7145, Geoinformatics 2008 and Joint Conference on GIS and Built Environment: Monitoring and Assessment of Natural Resources and Environments, 71451T (3 November 2008); doi: 10.1117/12.813047
Show Author Affiliations
Jin Chen, Cold and Arid Regions Environmental and Engineering Research Institute (China)
Dongqing Li, Cold and Arid Regions Environmental and Engineering Research Institute (China)
Qingzhou Meng, Cold and Arid Regions Environmental and Engineering Research Institute (China)
Guowucai Yong, Cold and Arid Regions Environmental and Engineering Research Institute (China)


Published in SPIE Proceedings Vol. 7145:
Geoinformatics 2008 and Joint Conference on GIS and Built Environment: Monitoring and Assessment of Natural Resources and Environments
Lin Liu; Xia Li; Kai Liu; Xinchang Zhang; Yong Lao, Editor(s)

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