Page 14 - 《环境工程技术学报》2023年第1期

Vol.13，No.1 环 境 工 程 技 术 学 报 第 13 卷，第 1 期
Jan.，2023 Journal of Environmental Engineering Technology 2023 年 1 月

董妍兰，孙德智，邱斌.长江流域四川区域城市水生态环境问题解析及治理对 策 [J].环境工程技术学报，2023，13（1）：10-18.
DONG Y L,SUN D Z,QIU B.Analysis of water eco-environmental problems and related countermeasures for cities in Sichuan region of the Yangtze River
Basin[J].Journal of Environmental Engineering Technology，2023，13（1）：10-18.

长江流域四川区域城市水生态环境问题解析及治理对策

1,2
1,2
董妍兰 ，孙德智 ，邱斌 1,2*
1.北京林业大学，水体污染源控制技术北京市重点实验室
2.北京林业大学污染水体源控与生态修复技术北京高校工程研究中心
摘要 以长江流域四川区 域 1 个城市为研究对象，分析了 近 5 年区域内长江干流（四川段）、支流岷沱江和嘉陵江流域典型城
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市建成区的水环境质量变化趋势及主要污染指标，估算流域内城镇生活源、工业源和城市面源化学需氧量（COD）、氨氮、总氮
（TN）和总磷（TP）污染排放负荷，解析城市水生态环境问题及成因。结果表明： 近 5 年长江流域四川区域城市水体水质逐年向
好，TP、氨氮、T 和 CO 是区域内水体的主要污染指标；城镇生活源为区域城市的主要污染源，城市基础设施建设不足、部分
N
D
城市工业污染问题突出、丰水期城市面源负荷较大、资源型和水质型缺水并存等导致了城市水生态环境问题。在此基础上，提
出通过推进城镇污水收集和处理系统提质增效、实施典型工业废水专项治理、建设溢流污水处理设施、开展城市水体生态修复
等措施进一步提升长江流域四川区域城市水生态环境质量。
关键词 长江流域四川区域；城市水生态环境；污染源解析；治理对策
中图分类号：X52 文章编号：1674-991X（2023）01-0010-09 doi：10.12153/j.issn.1674-991X.20210701

Analysis of water eco-environmental problems and related countermeasures for
cities in Sichuan region of the Yangtze River Basin

1,2
1,2
DONG Yanlan , SUN Dezhi , QIU Bin 1,2*
1.Beijing Key Lab for Source Control Technology of Water Pollution, Beijing Forestry University
2.Research Center for Water Pollution Source Control and Eco-Remediation, Beijing Forestry University
Abstract Taking 18 cities in Sichuan region of the Yangtze River Basin as research objects, the water environment
quality change trend and the main pollution indexes of the urban built-up areas at the main stream of the Yangtze
River as well as the Minjiang-Tuojiang River and Jialing River tributary streams in Sichuan region of the Yangtze
River Basin from 2016 to 2020 were investigated. The pollution discharge load of chemical oxygen demand (COD),
ammonia nitrogen (NH -N), total nitrogen (TN) and total phosphorus (TP) from the urban domestic sources,
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industrial sources and urban non-point sources of the typical cities were also estimated, to analyze the problems and
causes of urban water eco-environmental problems. The results showed that water quality of urban water bodies
in Sichuan region of the Yangtze River Basin had improved year by year in the recent five years, and TP, NH -N,
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TN and COD were the main pollution indexes of water bodies in the region. In addition, the domestic source was the
main pollution source of the cities in the region. The insufficient urban infrastructure construction , the prominent
industrial pollution problems of some cities, large urban non-point source load in wet season and the coexistence of
water resources and water quality shortage were the main reasons which led to the water eco-environmental
problems in the cities. On this basis, countermeasures and suggestions on further improving the quality of urban
water ecological environment in Sichuan region of the Yangtze River Basin were put forward, including
strengthening the construction of urban sewage collection and treatment facilities, treating typical industrial
wastewater specially, strengthening the construction of rainwater and wastewater diversion pipelines and rainwater
collection devices, and repairing polluted surface water with ecological methods.
Key words Sichuan region of the Yangtze River Basin; urban water eco-environment; analysis of pollution
sources; countermeasure

收稿日期：2021-11-15
基金项目：长江保护修复一期项目集成研究课题（2021-长江项目-001-W-004）
作者简介：董妍 兰 (1998—)，女，硕士研究生，主要从事水环境污染控制研究，dongyanlan1998@163.com
* 责任作者：邱 斌 (1988—)，男，教授，主要从事水环境污染控制与生态修复研究，qiubin2015@bjfu.edu.cn