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《Acta Scientiarum Naturalium Universitatis Pekinensis》 2007-02
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Hazard Assessment of Debris Flow Based on Geomorphic Information Entropy in Catchment

WANG Xiaopeng 1)PAN Mao 1)REN Qunzhi 2)(1)School of Earth and Space Sciences,Peking University,Beijing,100871;2)Liaoning Bureau of Geology and Mineral Exploration for Metallurgy,Anshan,114019)  
Debris flow is the special disaster occurred in the catchments,which is controlled by the geomorphic system.The theory of geomorphic information entropy which can be used to indict the characteristics of evolution of landforms is the combination of information and Strahler's area-altitude analysis.So,it is possible to use geomorphic information entropy to study debris flow catchments and make hazard assessment of debris flow catchments.This paper carries the geomorphic information entropy analysis on the geomorphologic evaluation stage of 21 debris flow catchments in Hadabei,which is located in the southwest part of Xiuyan County with damaged debris flows in 1982.According to the result,the geomorphic information entropy analysis on debris flow catchments is objective,credible,easy to carry out and helpful for evaluation,warning and reduction of debris flow.
【Fund】: 省校合作项目——辽宁省鞍山市地质灾害评价预警系统(辽国资项发[2004]6号)
【CateGory Index】: P642.23
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