Abstract
Tibet is one of the areas with most serious geological hazards in China, and the distribution of disasters has obvious local characteristics. Tibet can be classified as three parts through zoning the danger degree, the mountain canyon high danger zone of east and southeast Tibet, the plateau mountain lake basin and valley middle danger zone of south Tibet, and the Plateau Mountain lake basin low danger zone of south Tibet. This paper, takes the debris flow, collapse, landslide as the key points to analyze the distribution characteristics of geological hazards, and analyze the factors which influence the distribution of geological hazards, such as terrain landform, formation lithology, geologic structure pattern, precipitation, earthquake, human activity and so on. finally, as a conclusion: in whole Tibet, the geological hazards are more in southeast than in northwest, more in mountainous area which in the edge of plateau and river valley than in the interior of plateau and lake basin. And most hazards distribute in the regions where human activity is stronger than in other regions, for example towns or strips along the highway.
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Foundation item: Supported by the National Basic Research Program of China (973 Program, 2005CB422005) and National Key Technologies Research and Development Program in the Tenth Five-Year Plan of China (2002BA901A42)
Biography: FAN Jihui (1980-) male, Ph. D. candidate, research direction: hydrology and forest ecology.
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Jihui, F., Caiyan, W. & Genwei, C. Distribution characteristics and influencing factors of geological hazards in Tibet. Wuhan Univ. J. Nat. Sci. 11, 806–812 (2006). https://doi.org/10.1007/BF02830168
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DOI: https://doi.org/10.1007/BF02830168