[1]ZHANG Huai-zhen,FAN Jian-rong,GUO Fen-fen,et al.The Comparison of Single Debris Flow Risk Assessment Models in China[J].Research of Soil and Water Conservation,2011,18(04):20-26,31.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
18
Number of periods:
2011 04
Page number:
20-26,31
Column:
Public date:
2011-08-20
- Title:
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The Comparison of Single Debris Flow Risk Assessment Models in China
- Author(s):
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ZHANG Huai-zhen1,2, FAN Jian-rong1, GUO Fen-fen1,2, LIU Fei1,2
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1. Institute of Mountain Hazards and Environment, CAS & MWR, Chengdu 610041, China;
2. Graduate University of the Chinese Academy of Sciences, Beijing 100049, China
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- Keywords:
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debris flow; hazardousness; assessment model; uncertainty
- CLC:
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P642.23
- DOI:
-
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- Abstract:
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Since 1980, researchers of China have begun to study the risk of landslides and debris flow hazard. Single debris flow hazard assessment model has become function assignment from grading;and the basic principles and techniques have been initially formed and gradually improved in practical application and improvement. This paper firstly divides single flow risk assessment models appearing in different periods into three types;hierarchical scoring models, classification assignment assignment model and function assignment model;using 37 typical debris flows’s basic data in Yunnan;compares these risk assessment results. The results show that the number of parameters in the evaluation of factors and uncertainties in different circumstances, three risk assessment results of the model similarity index are still greater than 0.91, and try to explain the reasons.