城市绿地消减背景下暴雨径流污染特征研究  

Analysis of Storm Runoff Pollution Characteristics under Background of Urban Green Space Reduction

作　　者：张秀娟 井川 卜庆雷 Zhang Xiujuan;Jing Chuan;Bu Qinglei(Jinan Weather Modification Center,Jinan 250102,China;Huludao Meteorological Bureau,Huludao 125000,China;Jinan Meteorological Bureau,Jinan 250100,China)

机构地区：[1]济南市人工影响天气中心,山东济南250102 [2]葫芦岛市气象局,辽宁葫芦岛125000 [3]济南市气象局,山东济南250100

出　　处：《环境科学与管理》2023年第4期66-70,75,共6页Environmental Science and Management

摘　　要：暴雨径流污染严重影响生态环境,为了制定合理的污染防治措施,提出城市绿地消减背景下暴雨径流污染特征分析。分析径流污染主要来源以及暴雨作用下污染物的冲刷和关联效应;确定径流污染过程;建立暴雨径流管理模型,获取目标地区的产流量与汇流量;利用径流系数法计算平均径流污染量,通过曲线解析明确污染物的转移特点,采集下垫面信息,掌握城市用地类型,最终分析出暴雨径流污染特征。实验结果表明,当绿地消减时,径流污染物浓度较高,且随时间和土壤深度的增加,下降速度缓慢。Rainstorm runoff pollution seriously affects the ecological environment.In order to formulate reasonable pollution prevention measures,the characteristics of rainstorm runoff pollution under the background of urban green space reduction were analyzed.The paper analyzes the main sources of runoff pollution and the scouring and correlation effects of pollutants under the action of rainstorm.It determines the process of runoff pollution to establish a rainstorm runoff management model and obtain the yield and sink of the target area.The runoff coefficient method is used to calculate the average runoff pollution amount.The transfer characteristics of pollutants are clarified through curve analysis.The underlying surface information is collected and the urban land type is mastered.The rainstorm runoff pollution characteristics are finally analyzed.The experimental results show that when the green land is reduced,the concentration of runoff pollutants is higher,and the decline rate is slow with the increase of time and soil depth.

关 键 词：城市绿地 暴雨径流污染 特征分析 降雨-径流模拟模型 径流系数法 

分 类 号：X522[环境科学与工程—环境工程]