广州市荔湾区城市内涝模拟与分析  

Simulation and Analysis of Urban Waterlogging in Liwan District, Guangzhou City

作　　者：黄铁兰[1] 张金兰[1] 王云鹏[2] 

机构地区：[1]广东工贸职业技术学院,广东广州510080 [2]中国科学院广州地球化学研究所,广东广州510640

出　　处：《人民珠江》2015年第5期135-138,共4页Pearl River

基　　金：国家科技支撑项目(2012BAH32B03);广东省自然科学基金项目(S2013010014097)

摘　　要：选择广州市荔湾区为研究对象,利用遥感和GIS技术,基于SWMM构建模型对研究区的城市内涝进行模拟,并分析降雨、地表形态、城市化程度、排水能力与城市内涝的关系。研究发现,降雨是城市内涝的最主要影响因素,而地表坡度和城市不透水率是重要因素,因此城市内涝的防控主要方向是降低降雨转化为径流的比例,增加雨水的吸收、滞留和储蓄。In this paper, the authors selected Liwan District, Guangzhou City as the research area, and built a model to simulate urban waterlogging based on remote sensing, GIS, and SWMM. Then the authors analyzed the relationships between urban waterlogging and rainfall, surface morphology, urbanization level, drainage capacity. The research results indicate that rainfall is the most important factor of urban waterlogging, and surface slope and urban impervious surface coverage were important factors. Therefore, for preventing and controlling urban waterlogging, it＇s the main solution to increase the rainwater absorption, retention and savings, and, thus, to reduce the ratio of rainfall into the runoff.

关 键 词：城市内涝 SWMM 模拟 

分 类 号：TV212.53[水利工程—水文学及水资源]