摘要
【目的】近几年,全球极端气象事件增多,西安市临潼区2011—2021年共发生暴雨洪涝灾害16次,严重影响人民生产生活和经济发展,开展临潼区的暴雨洪涝灾害风险评估十分必要。【方法】从暴雨洪涝灾害致灾因子、孕灾环境和承灾体因素中选取11个评价指标,采用模糊层次分析法(FAHP)和CRITIC法组合赋权的方法获得每个评价指标的权重,以30 m×30 m渔网作为评价基本单元,在ArcGIS平台上使用模糊综合评价法建立暴雨洪涝灾害风险评估模型,最终绘制临潼区暴雨洪涝灾害风险评估图。【结果】结果表明:高风险区主要分布在徐杨、行者、铁炉和雨金等街道办,其中徐杨街道办23.73%的区域达到高风险;较高风险区主要为骊山、秦陵、代王和马额等街道办,骊山和秦陵街道办的较高风险区在全区较高风险区占比为22.46%。【结论】评价结果较好地反映出临潼区暴雨洪涝灾害风险的实际情况,为临潼区暴雨洪涝灾害风险管理和防灾减灾工作提供较为客观的科学依据,研究方法可为类似地区暴雨洪涝灾害风险评估提供有益借鉴。
[Objective]With the increasing of global extreme meteorological events in recent years,16 rainstorm-flood disasters occurred in Lintong District from 2011 to 2021,which seriously affect people′s productive life and economic development,so it is necessary to carry out the risk assessment of rainstorm-flood disaster in Lintong District of Xi’an City.[Methods]Eleven evaluation indexes are selected from the disaster-causing factor,disaster-forming environment and hazard-affected body of rainstorm-flood disaster.The weights of each evaluation index are obtained by the combination of Fuzzy Analytic Hierarchy Process(FAHP)and Criteria Importance though Intercrieria Correlation(CRITIC)method.Taking 30 m×30 m fishing nets as the basic unit of evaluation,the fuzzy comprehensive evaluation method is used on ArcGIS platform to establish the rainstorm-flood disaster risk assessment model and finally draw the rainstorm-flood disaster risk assessment map of Lintong District.[Results]The results show that the high-risk areas are mainly distributed in street office areas of Xuyang,Xingzhe,Tielu and Yujin,among which 23.73%of Xuyang street office area reach high risk.The relatively high areas are mainly located in the street office areas of Lishan,Qinling,Daiwang and Ma′e.The relatively high risk area of Lishan and Qinling street office is 22.46%in the whole area.[Conclusion]The evaluation results better reflect the actual situation of rainstorm-flood disaster risk in Lintong District,also provide a more objective scientific basis for rainstorm-flood disaster risk management and prevention in Lintong District.The research method will provide useful reference for rainstorm-flood disaster risk assessment in areas with the similar disaster-pregnant geological environment.
作者
朱贵玉
方世跃
尹春风
于飞
祁欣海
ZHU Guiyu;FANG Shiyue;YIN Chunfeng;YU Fei;QI Xinhai(College of Geology and Environment,Xi’an University of Science and Technology,Xi’an 710054,Shaanxi,China;National Pipe Network Group Nanshan(Shandong)Natural Gas Co.,Ltd.,Yantai 265700,Shandong,China;West-East Gas Transmission Branch of Pipeline Co.,Ltd.,Xi’an 710018,Shaanxi,China)
出处
《水利水电技术（中英文）》
北大核心
2023年第4期37-48,共12页
Water Resources and Hydropower Engineering
