郑州市区暴雨洪涝风险区划研究

Study on Storm Flood and Flood Risk Zoning in Zhengzhou City

随着城市化的快速发展,城市下垫面的变化以及地形、地貌的复杂性将导致地表产汇流方式的多样性,从而加大城市的洪涝灾害发生。以郑州市区为研究对象,从灾害学角度采用指标体系评估法进行洪涝灾害风险分析,结合GIS等空间技术建立暴雨洪涝灾害综合指数评价模型,最终确定郑州市暴雨洪涝风险区划图。对各个区域可能受到的洪涝危险程度进行详细的划分,为郑州市未来防灾减灾调度提供一定依据。

With the rapid development of urbanization,the change of urban underlying surface and the complexity of topography and landform will lead to the diversity of surface convergence modes.This paper mainly uses the index system assessment method to analyze the risk of flood disasters in Zhengzhou City from the perspective of disasters,and combines the spatial technology of GIS to establish a comprehensive index evaluation model of storm floods and disasters,and finally determines the storm flood and flood risk zoning map of Zhengzhou City.The degree of flood hazard areas may be subject to various detailed division,and it will provide a certain basis for future disaster prevention and mitigation planning in Zhengzhou City.