地球科学与环境工程河南科技HenanScienceandTechnology总第802期第8期2023年4月河南省沿黄城市洪涝灾害脆弱性特征分析宋晓茹黄海荣张薇郭霜霜(河南工业大学土木建筑学院,河南郑州450000)摘要:【目的目的】更加系统地分析河南省沿黄城市洪涝灾害脆弱性时空分布特征,以期为流域减灾防灾提供决策依据。【方法方法】以河南省沿黄8个城市为研究对象,基于区域灾害系统理论,构建河南沿黄城市洪涝灾害脆弱性评价体系,并利用Matlab构建基于BP神经网络的评估模型。【结果结果】将研究数据导入评估模型,得到脆弱性评估指数,从时间和空间两个维度对研究区洪灾脆弱性进行特征分析。【结论结论】①时间上,2010—2020年8市洪涝灾害脆弱性呈现“整体下降、局部波动”趋势;②空间上,8市空间分异显著,呈现出整体分散、局部集中的分布形式,脆弱性从西到东呈现“高-低-高-低”分布特征;③省会城市郑州10年间洪灾脆弱性指数居高,并在空间上处于脆弱性等级较高区域。关键词:洪涝灾害;脆弱性;BP神经网络;沿黄城市中图分类号:TU998.4;TV882.1文献标志码:A文章编号:1003-5168(2023)08-0103-05DOI:10.19968/j.cnki.hnkj.1003-5168.2023.08.021AnalysisonVulnerabilityCharacteristicsofFloodDisastersinCitiesAlongtheYellowRiverinHenanProvinceSONGXiaoruHUANGHairongZHANGWeiGUOShuangshaung(CollegeofCivilEngineeringandArchitecture,HenanUniversityofTechnology,Zhengzhou450000,China)Abstract:[Purposes]Toanalyzethespatio-temporalcharacteristicsoffloodvulnerabilityincitiesalongtheYellowRiverinHenanprovince,andtoprovidedecision-makingbasisfordisasterreductionandpreventioninthebasin.[Methods]Thispapertakes8citiesalongtheYellowRiverofHenanProvinceastheresearchobject.Basedonregionaldisastertheory,itconstructstheflooddisastervulnerabilityas⁃sessmentsystemofthecitiesalongtheYellowRiverinHenanProvince.,andanassessmentmodelbasedonBPneuralnetworkwasconstructedbyusingMatlab.[Findings]Theresearchdatawasimportedintotheassessmentmodeltoobtainthevulnerabilityassessmentindex,andthenthecharacteristicsoffloodvulnerabilityinthestudyareawereanalyzedfromtwodimensionsoftimeandspace.[Conclusions]Theanalysisresultsshowedthat:①Intermsoftime,theflooddisastervulnerabilityin9citiesshowed...