摘要
随着城市化进程的加快和社会经济的发展,城市内涝已成为继人口拥挤、交通拥堵、环境污染等问题之后的又一大城市病。武汉是我国内涝频发的城市之一,尤其是2016年夏季发生的城市内涝造成了巨大的社会经济损失。文章以武汉中心城区汤逊湖水系为研究范围,利用最邻近指数法、核密度强度分析法、湖泊变化强度指数等方法,探讨2016年6月30日-7月6日期间城市内涝灾害发生最严重时段的渍水特征,并揭示其形成原因和发生机制。研究发现:①城市暴雨渍水类型多样,主要包括居住区渍水、道路渍水和产业园区渍水三类。②渍水点呈现明显的空间集聚特征:渍水点以湖泊为中心集中分布,围湖造地区域是渍水发生的重灾区,城市新开发区和在建施工区也是渍水发生的集中区域,水系中下游比上游渍水严重。③湖泊容量萎缩、水系结构简化、水利建设滞后、汇水强度增大、异常气候突发等共同导致暴雨渍水灾害的发生。
With the accelerating process of urbanization and the development of social economy,urban waterlog has become another major urban disease following population congestion,traffic jam,and environmental pollution.Wuhan is one of the most waterlogged cities in China,especially the waterlog in the summer of 2016,which caused huge social and economic losses.Taking the Tangxun Lake water system in inner Wuhan as the research area,this paper studies the waterlogging characteristics of the most serious period of urban waterlogging disaster from June 30,2016 to July 6 by using the nearest neighbor index method,the kernel density analysis method and the lake evolution intensity index method and reveals its formation reason and mechanism.This study finds that:1)There are various types of urban rainstorm waterlogging,mainly including waterlogging in residential area,waterlogging in road and waterlogging in industrial park.2)There are obvious spatial agglomeration characteristics of waterlogging sites:waterlogging sites are concentrated around lakes,the areas where lakes are built are the hardest-hit areas where waterlogging occurs,the new development zone of city and the zones in construction are also the concentrated region of waterlogging,the middle and lower reaches of the water system are more severe than the upstream.3)The collapse of lake capacity,the simplification of water system structure,the lag of irrigation construction,the increase of catchment strength and abnormal climatic outburst lead to the occurrence of rainstorm waterlogging disaster.
作者
陈昆仑
许红梅
李志刚
黄耿志
姚华松
CHEN Kunlun;XU Hongmei;LI Zhigang;HUANG Gengzhi;YAO Huasong((7.School of Sports,China University of Geosciences,Wuhan 430074,Hubei,China;School of Urban Design,Wuhan University,Wuhan 430070,Hubei,China;School of Geographical Science and Planning,Sun Yat-sen University,Guangzhou 510275,Guangdong,China;School of Public Administration,Guangzhou University,Guangzhou 510006,Guangdong,China)
出处
《经济地理》
CSSCI
CSCD
北大核心
2020年第5期129-135,219,共8页
Economic Geography
基金
中央高校基本科研业务费专项资金资助项目(CUG2018123)
国家自然科学基金项目(41401181)。
关键词
快速城市化
人类活动
城市暴雨渍水
内涝灾害
发生机制
湖泊
异常气候
rapid urbanization
human activities
urban rainstorm waterlogging
spatial characteristics
formation mechanism
Lake
abnormal climate
