摘要
对宜兴市周铁镇沙塘港村3种不同下垫面一屋面、庭院、道路的降雨径流各指标监测数据进行拟合,构建了径流污染物积累与冲刷模型,并对比研究宜兴典型村落不同下垫面降雨径流中污染物浓度和有效降雨深度之间的关系。结果表明,宜兴市周铁镇沙塘港村不同下垫面有效降雨深度与径流污染物浓度之间具有相关性,均为线性关系,模型可直接应用于当地中小强度降雨(降雨量<0.1 mm/min)参数的计算,模型预测结果与实测结果拟合性较好,可用于太湖流域典型村落不同下垫面降雨径流污染物积累与冲刷规律的分析。
Rainfall runoff data of three different rural underlying surfaces （ the roof,courtyard and road） in Shatanggang Vi l la g e ,Zhoutie Town,Yixing City,was used for model fitting,and the models of the pollutants accumulation in runoff and rain scouring were created. The relationships between pollutants in runoff and rainfall intensity of different rural underlying surfaces of typical villages in Yixing were studied. The result shows that there were good linear relationship between runoff pollutant concentrations In [C（r）]and effective rainfall depth Hef. Model formula can be directly used to calculate the parameters of small and medium rainfall intensity （ 〈0.1 m m /m in ） . The model generally has a good precis ion, fits with the measured resul t s, and can be used to analysis characteristics of pollutants accumulation in runoff and rain scouring of different rural underlaying surfaces in typical area of Taihu Lake Region.
作者
汪楚乔
陈柔君
吴磊
宋海亮
李先宁
Wang Chuqiao;Chen Roujun;Wu Lei;Song Hailiang;Li Xianning(School of Energy and Environment, Southeast University,Nanjing 210096, China)
出处
《净水技术》
CAS
2018年第4期21-27,共7页
Water Purification Technology
基金
国家水体污染控制与治理科技重大专项(2012ZX07101-005)
江苏省级环保科研课题(2016029)
国家科技部支撑计划项目(2013BAJ10B12-02)
关键词
村落
下垫面
降雨径流
污染物积累
冲刷模型
rural village underlying surface rainfall runoff pollutant accumulation wash-off model
