[1]刘晓冉,康俊,王颖,等.基于GIS的重庆地区不同季节干旱灾害风险评估与区划[J].自然灾害学报,2019,28(02):092-100.[doi:10.13577/j.jnd.2019.0210]
 LIU Xiaoran,KANG Jun,WANG Ying,et al.Assessment and regionalization on drought disaster risk of different season in Chongqing area based on GIS[J].,2019,28(02):092-100.[doi:10.13577/j.jnd.2019.0210]
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基于GIS的重庆地区不同季节干旱灾害风险评估与区划
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《自然灾害学报》[ISSN:/CN:23-1324/X]

卷:
28
期数:
2019年02期
页码:
092-100
栏目:
出版日期:
2019-04-28

文章信息/Info

Title:
Assessment and regionalization on drought disaster risk of different season in Chongqing area based on GIS
作者:
刘晓冉 康俊 王颖 李永华
重庆市气候中心, 重庆 401147
Author(s):
LIU Xiaoran KANG Jun WANG Ying LI Yonghua
Chongqing Climate Center, Chongqing 401147, China
关键词:
干旱灾害风险评估区划重庆
Keywords:
drought disasterrisk assessmentregionalizationChongqing
分类号:
P96;X43
DOI:
10.13577/j.jnd.2019.0210
摘要:
依据自然灾害风险评估理论,从致灾因子危险性、孕灾环境脆弱性、承灾体暴露性、防灾减灾能力4个方面选取指标,构建重庆干旱灾害风险评估模型,结合相关气象、生态和社会经济数据,运用GIS空间数据分析完成重庆不同季节干旱灾害风险评估及区划。结果表明:(1)重庆各类干旱致灾因子危险性均表现在重庆西北部和东北部偏东地区较高,其中东北部的巫溪均为高危险区,而重庆东南部和中部偏北地区的危险性较低。(2)干旱孕灾环境脆弱性的高脆弱区主要位于重庆东北部的城口、巫溪、巫山、奉节和西南部的綦江、南川、武隆、丰都、石柱,而西部和东南部的彭水、黔江、秀山大部地区脆弱性较低。(3)干旱承灾体暴露性在东南部的彭水、黔江、秀山大部地区较低,而在东北部、中部和西南部大部地区为高暴露区。(4)干旱灾害防灾减灾能力在主城区及涪陵、万州城区周边为次高和高能力区,而重庆东北部和东南部大部地区为低能力区。(5)重庆不同干旱灾害风险在东北偏东地区的风险性均较高,其中巫溪均为高风险区,而东南部和中部偏北地区的风险性较低。
Abstract:
Combining with the related theory of natural disaster, we established the risk assessment model of drought disaster in Chongqing with the four assessment index subsystems containing the dangerousness of disaster risk, the vulnerability of the disaster environment, the exposure of the disaster bearing body, and the ability of disaster prevention and reduction. Based on the meteorological, ecological and social economic data of Chongqing, the assessment and regionalization of drought disaster risk in Chongqing were carried out by using the GIS spatial data analysis. The results show that:(1) The higher risk regions of various drought disaster-causing factors is located in northwest and northeast of Chongqing which centered on Wuxi, and the lower risk regions in southeast and northern central parts. (2) The highly vulnerable areas of drought and disaster-prone environment are mainly located in the northeast of Chengkou, Wuxi, Wushan and Fengjie, and the southwestern Qijiang, Nanchuan, Wulong, Fengdu and Shizhu. Most areas in the west and southeast of chongqing, including Pengshui, Qianjiang and Xiushan, are less vulnerable. (3) The exposure of drought disaster bearing body is lower in most areas of southeasten part, such as Pengshui, Qianjiang and Xiushan, while higher in northeast, central and most of southwest parts. (4) Wanzhou and its surrounding are the highest area of disaster prevention and mitigation capacity of drought disasters, and the main urban area and around Fuling is the second. The low disaster prevention and mitigation capacity areas lie in northeastern and southeastern part of Chongqing. (5) The risk of different drought disasters is higher in the northeast, where Wuxi is a high-risk area, and lower in the southeast and the north part of central Chongqing.

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备注/Memo

备注/Memo:
收稿日期:2018-10-09;改回日期:2018-11-20。
基金项目:国家自然科学基金(41875111);重庆市建设科技计划项目(城科字2015第2-10号)
作者简介:刘晓冉(1982-),男,高级工程师,博士,主要从事应用气候学研究.E-mail:liuxiaoran8283@126.com
通讯作者:康俊(1982-),男,高级工程师,主要从事GIS与气象灾害风险评估研究.E-mail:kaan_508@163.com
更新日期/Last Update: 1900-01-01