前山河流域一河三涌底泥氮磷污染物空间分布特点研究  

Study on Spatial Distribution Characteristics of Nitrogen and Phosphorus Pollutants in The Sediment of Qianshan River Basin

作　　者：商添雄 朱嘉慰 Shang Tianxiong;Zhu Jiawei(Zhuhai Reservoir Management Center,Zhuhai 519020;Zhuhai Municipal Water Supply and Drainage Pollution Treatment Center/Zhuhai Water Quality Monitoring Center,Zhuhai 519020,China)

机构地区：[1]珠海市水资源中心,广东珠海519020 [2]珠海市供水与排水治污中心/珠海市水质监测中心,广东珠海519020

出　　处：《广东化工》2023年第21期82-86,52,共6页Guangdong Chemical Industry

摘　　要：前山河流域是粤港澳大湾区西部城区重要河道,有排涝、泄洪及景观的功能,但随着城市化进程加快,污染源增多,前山河水环境面临更大的挑战。本文通过对前山河流域中的前山河干流、沙心涌、广昌涌和洪湾涌的底泥氮磷污染物表层、中层和底层和不同断面分布特点研究,分析前山河一河三涌受污染情况。结果表明,前山河表层底泥平均氮磷浓度约为2135 mg/L和1392 mg/L。氮磷浓度较高的主要集中在前山河干流与沙心涌汇合处、前山码头处以及白石路排洪渠附近河段底泥表层,沙心涌下成丰、四间围、连丰围河段底泥中层,广昌涌广盛围、坦南村中心街等河段底泥表层和中层及洪湾涌的底泥表层。本文旨在通过基础数据研究分析并提出建议为管理部门整治前山河流域水环境提供理论依据,为落实广东省政府提出“南粤水更清行动计划”和“水污染防治计划”提供技术支撑。The Qianshan River Basin is an important river channel in the western urban area of the Guangdong Hong Kong Macao Greater Bay Area,with functions of drainage,flood discharge,and landscape.However,with the acceleration of urbanization and the increase of pollution sources,the Qianshan River environment is facing greater challenges.This article analyzes the pollution situation of one river and three streams in the Qianshan River basin by studying the distribution characteristics of nitrogen and phosphorus pollutants in the surface,middle,and bottom layers of sediment in the main streams of the Qianshan River,Shaxin River,Guangchang River,and Hongwan River,as well as different sections.The results show that the average nitrogen and phosphorus concentrations in the surface sediment of Qianshan River are about 2135 mg/L and 1392 mg/L.The high concentration of nitrogen and phosphorus is mainly concentrated at the confluence of the main stream of the Qianshan River and Shaxinchong,the Qianshan Wharf,and the surface layer of the sediment near the Baishi Road flood discharge channel.The middle layer of the sediment in the Chengfeng,Sijianwei,and Lianfengwei sections of Shaxinchong,as well as the surface layer and middle layer of the sediment in the Guangshengwei,Tannan Village Central Street,and other river sections of Guangchang Chung,as well as the surface layer of the sediment in Hongwan Chung.This article aims to provide theoretical basis for the management department to improve the water environment of the Qianshan River Basin through basic data research and analysis,and provide technical support for the implementation of the Guangdong Provincial Government's“Southern Guangdong Water Cleansing Action Plan”and“Water Pollution Prevention and Control Plan”.

关 键 词：前山河流域 一河三涌 氮磷污染物 空间分布 生态管理 

分 类 号：TQ[化学工程]