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“4.25”尼泊尔Ms8.1地震西藏重灾区次生地质灾害空间分布规律与危险性分区
Alternative TitleDisasterous spatial distritution and danger zonation of secondary geological disaster in Xizhang after“4·25”Ms8.1 Nepal earthquake
黄森旺1,2; 孔纪名1; 崔云1; 王仁超1,2; 邱洪志1,2
Corresponding Author孔纪名
2017-02
Source Publication自然灾害学报
ISSN1004-4574
Volume26Issue:1Pages:80-88
Other Abstract

以地质灾害调查数据为基础,基于大量的野外考察、多源遥感影像解译,获取了899处次生地质灾害点。选取地形、地质、地震、气象水文和人类活动等5类共9项指标,利用GIS技术对地质灾害和各因子的空间分布规律进行了统计分析,并基于K-prototypes聚类分析和最大似然分类法对灾区次生灾害的危险性进行分区和评价。结果表明:灾区地质灾害因类型而异,呈间断性集中分布;灾害危险性以中、高和极高危险为主,分别占总面积的35.10%、21.67%和24.38%,而极低和低危险区共占18.85%;灾害点的空间分布与灾害的危险性等级具有良好的正相关性,直接验证了危险性分区的结果。 
 

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Based on a large number of data of geological disasters field survey and multisource interpretation of remote sensing images,we obtained 899 geological disaster sites. We firstly selected 9 influence factors including landform,geology,earthquake,meteorohydrology and mankind activity,and then conducted statistic analysis of spatial distribution law of geological disasters and each factor by use of GIS technology. Assessment and zoning of secondary disaster hazard were carried out on the basis of K-prototypes clustering analysis and maximum likelihood classification.Resuts show that the geological disasters in disastrous area are not same for different kinds of disaster,and present discontinuous concentric distribution. Among the disaster hazard,medium,high and extreme high hazard are dominant ones,and they account for 35.10%,21.67% and 24.38% respectively,extreme low and low hazard area account for 18.85%. There is a better positive correlation between spatial distribution of disaster site and hazard class of disaster. This verifies directly zoning results of the hazard.

Keyword尼泊尔地震 次生地质灾害 空间分布 危险性分区
Subject AreaX43
DOI10.13577/j.jnd.2017.0110
Indexed ByCSCD ; 北大中文核心
Language中文
Funding Organization国家863计划项目(2012AA121302) ; 国家自然科学基金项目(41401608)
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/18782
Collection山地灾害与地表过程重点实验室
Affiliation1.中科院成都山地灾害与环境研究所/山地灾害与地表过程重点实验室
2.中国科学院大学
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
黄森旺,孔纪名,崔云,等. “4.25”尼泊尔Ms8.1地震西藏重灾区次生地质灾害空间分布规律与危险性分区[J]. 自然灾害学报,2017,26(1):80-88.
APA 黄森旺,孔纪名,崔云,王仁超,&邱洪志.(2017).“4.25”尼泊尔Ms8.1地震西藏重灾区次生地质灾害空间分布规律与危险性分区.自然灾害学报,26(1),80-88.
MLA 黄森旺,et al."“4.25”尼泊尔Ms8.1地震西藏重灾区次生地质灾害空间分布规律与危险性分区".自然灾害学报 26.1(2017):80-88.
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