中国水土保持科学2012，Vol.10Issue(1)：12-18,7.
基于聚类和最大似然法的汶川灾区泥石流滑坡易发性评价
Susceptibility mapping of landslides and debris flows in 2008 Wenchuan earthquake by using cluster analysis and maximum likelihood classification methods
摘要
Abstract
Cluster analysis and Maximum Likelihood Classification ( MLC ) methods are introduced to map the susceptibility of post-quake geo-hazards in the Ms 8.0 Wenchuan earthquake area. Four variables including slope gradient, relative relief, seismic intensity and surface runoff are chosen as predominant factors of the susceptibility mapping. The mapping result shows that this approach has the advantage of rapid evaluation, and is applicable even when there is short of training data. Five kinds of susceptibility (very low, low, moderate, high, and extreme high) are assigned to the study area by virtue of expert experience and geo-hazard density. The final map gives a reasonable assessment of susceptibility of post-earthquake geo-hazards in the area. It is found that there exist safety spots within the region of high danger, which are suitable for habitations and facilities. Moreover, the hazard density near the boundaries between extreme high and high regions, or high and very low regions is larger than other regions.关键词
易发性评价/泥石流/地质灾害/汶川地震/聚类分析/最大似然法Key words
susceptibility mapping/ debris flow/ geo-hazard/ Wenchuan earthquake/ Cluster analysis/ Maximum Likelihood Classification引用本文复制引用
胡凯衡,崔鹏,韩用顺,游勇..基于聚类和最大似然法的汶川灾区泥石流滑坡易发性评价[J].中国水土保持科学,2012,10(1):12-18,7.基金项目
中国科学院知识创新工程重要方向项目群“重大山地灾害综合风险分析的理论与方法”(KZCX2-YW-Q03-5) （KZCX2-YW-Q03-5）
国家重点基础研究发展计划“中国西部特大山洪泥石流灾害形成机理与风险分析”(2011 CB409902) （2011 CB409902）
中国科学院成都山地灾害与环境研究所青年百人团队项目“考虑细观颗粒效应的泥石流动理学模型研究”(110900K235) （110900K235）
