| 基于GIS的徐水县干旱灾害风险区划 |
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| 引用本文： | 杨丰政,景元书.基于GIS的徐水县干旱灾害风险区划[J].气象与减灾研究,2012,35(1):54-58. |
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| 作者姓名： | 杨丰政 景元书 |
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| 作者单位： | 南京信息工程大学应用气象学院,江苏南京,210044 |
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| 基金项目： | 江苏省2008年度普通高校研究生科研创新计划项目 |
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| 摘 要： | 以河北省保定市徐水县干旱灾害为例,对其干旱灾害风险区划进行研究。利用GIS技术,建立气象数据库,集成基础地理数据、气象观测数据和人口经济等资料;选择适当指标,实现干旱灾害致灾因子危险性、孕灾环境敏感性、承灾体脆弱性和防灾减灾能力栅格化的计算。通过建立干旱灾害风险评估模型,完成干旱灾害风险区划的绘制,并分析了徐水县干旱灾害风险区划的分布特点。结果表明,徐水县干旱灾害风险分布呈地区性差异,中部地区发生干旱灾害的风险较高,西南地区风险较低。
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| 关 键 词： | 干旱 风险区划 GIS |
DROUGHT DISASTER RISK ZONING OF XUSHUI COUNTY BASED ON GIS |
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| Yang Fengzheng
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Jing Yuanshu.DROUGHT DISASTER RISK ZONING OF XUSHUI COUNTY BASED ON GIS[J].Meteorology and Disaster Reduction Research,2012,35(1):54-58. |
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| Authors: | Yang Fengzheng Jing Yuanshu |
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| Institution: | School of Applied Meteorology,NUIST,Nanjing 210044,China |
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| Abstract: | Taking the drought disaster of Xushui county as the example,the risk zoning was analyzed.Based on GIS,databases of geographic data,meteorological data,population and economic data were established.By selecting appropriate indicators,the rasterization calculations about risks of hazard factor,sensitivity of pregnant environment,vulnerability of hazard bearing body and ability to prevent and mitigate disasters were finished.By establishing drought disaster risk assessment model,drought risk zoning map of Xushui County was drawn and the spatial distribution characteristics were analyzed.The results showed that the distribution of risk division had regional differences,and drought risk was higher(lower) in middle(southwest) areas of Xushui. |
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| Keywords: | Drought Risk zoning Geographic information system(GIS) |
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