摘要
以广州中心城区为例,分析了快速城市化过程中滨江城市演进与城区内涝的关系和形成机理。研究结果表明,1988年至2005年期间,滨江城区的扩展造成植被等透水面的大量减少,河涌、人工湖及内河水系出现淤积、堵塞并污染严重。江面束窄致使珠江水位异常壅高,而低平地势难以在短时间内排掉极端降雨过程形成的高峰流量,导致城区水涝的频繁发生。提出增加沿江低地势区域的滞水空间和疏通河涌等河网水系等内涝治理措施。
Based on the discussion of decrease of vegetation, river congestion, narrower river, and low-lying terrain factors, the paper analyzed the formation mechanism and relationship of urban waterlogging between riverside urban evolutions. Frgm 1988 to 2005, riverside city expansion led to loss of vegetation such as permeable surfaces, river and artificial lake congestion and pollution. Narrower river resulted in Pearl River high water levels, and low-lying terrain could not drain the peak flow of extreme rainfall, which induced the frequent city waterlogging. The paper proposed to increase the stagnant water space along the low-lying areas, clear creek, lake and river and other river water systems, and build drainage systems and controllability water recycling system.
出处
《生态经济》
CSSCI
北大核心
2012年第7期169-172,176,共5页
Ecological Economy
基金
国家自然科学基金项目(40771067)
中国博士后科学基金项目(20110490901)
关键词
快速城市化
滨江城区
内涝
治理
广州
rapid urbanization
riverside city
waterlogging
treatment
Guangzhou
