Social Vulnerability Assessment for Regional Natural Disasters-A Case Study of He'nan Province

LIU De-lin; LIANG Heng-qian

doi:10.13961/j.cnki.stbctb.2014.05.031

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Social Vulnerability Assessment for Regional Natural Disasters-A Case Study of He'nan Province

- Social Vulnerability Assessment for Regional Natural Disasters-A Case Study of He'nan Province
- Bulletin of Soiland Water Conservation Vol. 33, Issue 5, Pages: 128-134(2014)
- 作者机构：
  
  1. 河南理工大学安全与应急管理研究中心,河南,焦作,454000
  2. 河南理工大学应急管理学院,河南,焦作,454000
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2014.05.031
  CLC：
- Published：2014
- 稿件说明：
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LIU De-lin, LIANG Heng-qian. Social Vulnerability Assessment for Regional Natural Disasters-A Case Study of He'nan Province[J]. Bulletin of Soiland Water Conservation, 2014, 33(5): 128-134.
DOI：

LIU De-lin, LIANG Heng-qian. Social Vulnerability Assessment for Regional Natural Disasters-A Case Study of He'nan Province[J]. Bulletin of Soiland Water Conservation, 2014, 33(5): 128-134. DOI： 10.13961/j.cnki.stbctb.2014.05.031.

摘要

脆弱性研究对区域防灾减灾规划和灾害风险管理具有极其重要的作用。以灾害频发的河南省为研究区

以区内各地市为基本评价单元

运用秩次相关分析和PCA法筛选出11个相互独立的影响因子

构建了河南省自然灾害社会脆弱性评估模型。利用AHP法确定各指标的相对权重

采用综合指数法对各评价单元的社会弱性进行了评估

并借助ArcGIS软件对评估结果进行了区划制图研究。结果表明:(1)河南省自然灾害的社会脆弱性呈现出一定的地域分布规律。(2)周口市、商丘市和驻马店市社会脆弱性等级为Ⅲ

属高脆弱区;郑州市、济源市与三门峡市自然灾害的社会脆弱性等级为Ⅰ

属低脆弱区;其他地市评价等级为Ⅱ

属中等脆弱区。(3)全省所处高、中和低社会脆弱性的面积比例分别为22.68%

65.35%和11.97%。

Abstract

The study on vulnerability plays an important role in planning of prevention and mitigation

and risk management of regional disasters. He'nan province

suffered from frequent natural disasters

was taken as the study area

and the prefecture-level cities as basic assessment unit. Eleven independent impact factors were selected using rank correlation analysis and PCA(principal component analysis) method

and the assessment model of social vulnerability was constructed. The relative weights of each index were determined using the AHP(ainalytical hierarchy process) method

and the social vulnerability to natural disasters of each unit was assessed using the comprehensive index method. The assessment results were mapped and studied using ArcGIS software. The results showed that:(1) The social vulnerability to natural disasters presented a certain regional distribution pattern.(2) Zhoukou City

Shangqiu City and Zhumadian City were in higher social vulnerable area

belongs to level Ⅲ

Zhengzhou City

Jiyuan City and Sanmenxia City were in lower social vulnerable area

the levelⅠ

and others were in moderate social vulnerable area

the level Ⅱ.(3) The area ratio of He'nan Province in higher

moderate and lower social vulnerable area was 22.68%

65.35% and 11.97%

respectively.

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