摘要
为了分析洛阳地区暴雨洪涝灾害风险和区划,利用1961—2010年洛阳市气象观测资料,综合全市9个县(市)的气象、地理、社会经济与防灾抗灾等数据,应用GIS技术构建洛阳市暴雨洪涝灾害风险评价模型,定量分析洛阳市暴雨洪涝风险的致灾因子危险性、孕灾环境敏感性、承灾体易损性、防灾抗灾能力多个因子,计算得到洛阳地区暴雨洪涝灾害综合风险指数,并绘制了风险区划图。结果表明,洛阳地区洛宁、偃师东部、孟津中东部、洛阳市区风险等级较低;高风险区主要分布在栾川南部、汝阳、伊川西部和宜阳东部地区。
In order to analyze the risk and regionalization of rainstorm and flood disaster in Luoyang area,using the data of Luoyang in 1961 - 2010, comprehensive the meteorological,geographic, socio-economic and disaster prevention and other data of 9 counties,risk assessment model of rainstorm flood disaster based on GIS was established,about the risk factors of flood disaster,the sensitivity of the disaster environment,the vulnerability of disaster bearing body and the ability of disaster prevention and resilience were quantitative analyzed ,the comprehensive risk index of flood disaster in Luoyang was calculated.The results showed that the risk level of Luoning,Eastern Yanshi ,Eastern Mengjin and Luoyang was lower in the Luoyang area, and the high risk areas were mainly distributed in the south of Luanchuan, Ruyang,western Yichuan and the east of Yiyang.
出处
《现代农业科技》
2017年第23期199-201,205,共4页
Modern Agricultural Science and Technology
