长江经济带城市降雨径流污染特征分析  

Analysis of urban rainfall runoff pollution characteristics in Changjiang River Economic Belt

作　　者：刘敏 徐明杰 左倬 LIU Min;XU Mingjie;ZUO Zhuo(Shanghai Investigation,Design and Research Institute Co.,Ltd.,Shanghai 200335,China)

机构地区：[1]上海勘测设计研究院有限公司,上海200335

出　　处：《人民长江》2023年第9期11-16,32,共7页Yangtze River

基　　金：上海市科学委员会科研基金项目(19DZ1204500);中国长江三峡集团有限公司科研项目(202003129)。

摘　　要：为系统了解长江经济带城市面源污染状况,针对性解决长江经济带城市降雨径流引起的水环境污染问题,梳理了长江经济带各省(直辖市)的城市下垫面和功能区的雨水径流污染特征,对比分析长江经济带各省(市)不同下垫面和不同功能区降雨径流污染物指标,并采用线性混合模型分析污染物的降雨径流平均浓度与经济发展水平的相关性。结果表明:长江经济带下垫面降雨径流污染主要来自路面,且远高于屋面和绿地;城市功能区降雨径流污染浓度最高的是交通区,其次是商业区和工业区,居住区最低;降雨径流污染物浓度较高的是长江中下游地区,经济发展水平越高的省(市)降雨径流污染物浓度越高。研究成果全面分析了长江经济带城市面源污染状况,可为长江经济带城市降雨径流污染综合治理的规划与设计提供指导。To systematically understand the urban non-point source pollution in the Changjiang River Economic Belt,this paper divided the urban rainfall runoff survey data of each province(municipality)in the Changjiang River Economic Belt into the underlying surface and functional area,and the rainfall runoff pollutant indicators of different underlying surfaces and urban functional areas were compared and analyzed.The correlation between the averageconcentration of pollutants inrainfall runoff and the level of economic growth was analyzed using a linear mixed model.The results showed that the rainfall runoff pollution from the underlying surface in the province of Changjiang River Economic Beltis mainly caused by the pavement,and is significantly higher than that from roofs and green spaces.Transportation areas have the highest rainfall runoff concentration of pollutants,followed by commercial and industrial areas,while residential areas have the lowest concentration.The rainfall runoff concentration of pollutants is higher in the Changjiang River s middle and lower reaches.And there is a positive correlation between the level of economic growth and the concentration of rainfall runoff pollutants.This study can guide the planning and design of comprehensive treatment of urban rainfall runoff pollution in the Changjiang River Economic Belt.

关 键 词：降雨径流 下垫面 功能区 长江经济带 

分 类 号：X52[环境科学与工程—环境工程]