摘要
为了提高广西台风防减灾业务的时效性和精准度,基于自然灾害风险评估理论和方法,根据2010年广西生态遥感本底数据和社会经济空间化数据、地理信息数据,构建耦合自然生态和社会经济的台风灾害承灾体脆弱性指标体系,运用基于GIS的风险指数法,建立台风灾害承灾体脆弱性评价模型,实现了像元尺度的广西台风灾害承灾体脆弱性精细化评价。结果表明:广西台风灾害承灾体高脆弱区域主要分布在桂南、桂东南高暴露于台风灾害的建设用地和生态易损农用地、水土流失严重的裸地,占全区面积的25.9%;低脆弱区主要分布在桂东、桂东北、桂西北、桂西社会经济落后和植被覆盖度较高的山区,占全区面积的45.6%。
In order to improve the timeliness and accuracy of typhoon prevention and mitigation operations in Guangxi,using ecological remotesensing background data,socio-economic spatial data and geographic information data in Guangxi in2010,we have established a vulnerabilityevaluation index series for the hazard bearing bodies of typhoon disaster by coupling natural ecosystem and society economy basedon the natural disaster risk assessment theory and methods.Then we have designed an appropriate evaluation model based on GIS,and accomplishedthe elaborate evaluation of typhoon disaster vulnerability for the hazard bearing bodies in Guangxi with a cell scale.The resultsshow that most of the high vulnerability areas of typhoon-hazard bearing bodies are located in the southern and southeastern of Guangxi,occupying25.9%of the Autonomous Region,where are mostly construction land of high exposure to typhoon,farmland of ecological vulnerabilityand bare land of serious soil erosion.Most of the low vulnerability areas are found in the eastern,northeastern,northwestern and western regionof Guangxi,accounting for45.6%of the Autonomous Region,where are mostly mountain areas with backward social economy and relativelyhigh vegetation coverage.
作者
莫建飞
黄思琦
钟仕全
陈燕丽
MO Jianfei;HUANG Siqi;ZHONG Shiquan;CHEN Yanli(Guangxi Meteorological Disaster Mitigation Institute, Nanning 530022;Remote Sensing Application and Validation Base of National Satellite Meteorological Center, Nanning 530022;School of Geography & Remote Sensing,Nanjing University of Information Science & Technology, Nanjing 210044)
出处
《暴雨灾害》
2017年第2期177-181,共5页
Torrential Rain and Disasters
基金
广西科学研究与技术开发计划项目(桂科攻14124004-4-9
桂科攻1355010-9)
关键词
台风灾害
承灾体脆弱性
精细化评价
GIS
广西
typhoon disaster
vulnerability of hazard bearing bodies
elaborate evaluation
GIS
Guangxi
