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[1]HU Gui-sheng,CHEN Ning-sheng,DENG Hu.Analysis of Debris Flow-prone and Dangerous Area in Nyingchi of Tibet Based on GIS[J].Research of Soil and Water Conservation,2012,19(03):195-199.

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Analysis of Debris Flow-prone and Dangerous Area in Nyingchi of Tibet Based on GIS

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 19 Number of periods: 2012 03 Page number: 195-199 Column: Public date: 2012-06-20

Title:: Analysis of Debris Flow-prone and Dangerous Area in Nyingchi of Tibet Based on GIS

Author(s):: HU Gui-sheng^1,2, CHEN Ning-sheng¹, DENG Hu¹; 1. Key Lab of Mountain Hazards and Surface Processes, Chinese Academy of Sciences, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, 610041;
2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China

Keywords:: Nyingchi of Tibet; GIS; debris flow-prone area; dangerous area; debris flow

CLC:: P694;P642.23

DOI:: -

Abstract:: Nyingchi is one of the most dangerous regions threatened by debris flows in China. Under the influence of globe warming, the melting rate of glacier has accelerated, leading to the frequent initiation of glacier-melting debris flow, which is severely hazardous. Since the middle of June, 2011, the authors had carried out systematic investigation about debris flow in Nyingchi, and took remote sensing and GIS as the technical methods for the acquisition of data. First of all, it is analyzed that the individual factors including geology, geomorphology, glacial actions, climate, and earthquake had the important influence on debris flow-prone area, and homologous result was gotten. Secondly, we obtained debris flow-prone area result of Nyingchi through superimposing individual factors according to principle-leading factor analysis. At last, we obtained dangerous area through spatial operation based on debris flow-prone area considering threat object in Nyingchi, based on specific advice on disaster prevention which we proposed.

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