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[1]王俊贤,陆星宇,李光颖,等. 2014-2024年间长江中下游水质变化及影响因素分析 [J].武汉工程大学学报,2026,48(02):189-192+200.[doi:10.19843/j.cnki.CN42-1779/TQ.202501007]
　WANG Junxian,LU Xingyu,LI Guangying,et al. Water quality changes and influencing factors in the middle and lower reaches of the Yangtze River （2014-2024） [J].Journal of Wuhan Institute of Technology,2026,48(02):189-192+200.[doi:10.19843/j.cnki.CN42-1779/TQ.202501007]
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2014-2024年间长江中下游水质变化及影响因素分析
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
48
期数:
2026年02期
页码:
189-192+200
栏目:
现代大化工
出版日期:
2026-04-30

文章信息/Info

Title:
Water quality changes and influencing factors in the middle and lower reaches of the Yangtze River （2014-2024）
文章编号:
1674 - 2869（2026）02 - 0186 - 07
作者:
王俊贤; 陆星宇; 李光颖; 李 杏*
武汉工程大学环境生态与生物工程学院，湖北 武汉 430205
Author(s):
WANG Junxian;  LU Xingyu;  LI Guangying;  LI Xing*
School of Environmental Ecology and Biological Engineering, Wuhan Institute of Technology, Wuhan 430205, China
关键词:
长江中下游; 水质; 时空变化; 水污染防治
Keywords:
middle and lower reaches of the Yangtze River;  water quality;  spatial and temporal variation;  water pollution control
分类号:
X824
DOI:
10.19843/j.cnki.CN42-1779/TQ.202501007
文献标志码:
A
摘要:
为掌握长江中下游干流近十年水质变化趋势，选取CODMn、NH3-N和总磷（TP）作为评价因子，采用单因子评价法，分析2014-2024年间长江中下游干流21个监测断面的水质时空变化特征。结果表明：（1）近十年来，CODMn、NH3-N和TP含量总体呈现下降趋势。其中，CODMn和NH3-N达到地表水Ⅰ类水质标准的比例较前五年分别提高了20.1%和20.6%，大多数断面的TP稳定达到地表水Ⅱ类水质标准。（2）CODMn和TP的年均值在长江中游的降幅显著高于下游，而NH3-N的下降趋势则相反。（3）统计分析显示水质改善与污水处理能力提升密切相关，但农村污水处理能力仍显不足。因此，加强乡村污水治理体系建设，有效控制农业面源及渔业污染，是巩固和扩大水质改善成效的关键。在制定水污染防治政策时，应统筹区域经济发展和环境保护，推动实施更具针对性的治理措施。
Abstract:
To investigate water quality trends in the mainstream of the middle and lower reaches of the Yangtze River over the past decade, CODMn, NH3-N, and total phospate （TP） were selected as evaluation indicators. The single-factor assessment?method was used to analyze the spatiotemporal variations in water quality at 21 monitoring sites along the mainstream from 2014 to 2024. Results revealed that: (1) Over the decade, the concentrations of CODMn, NH3-N, and TP exhibited an overall decreasing trend. Specifically, the proportion of monitoring sections meeting the Class I surface water quality standard for CODMn and NH3-N increased by 20.1% and 20.6%, respectively, compared to the previous five-year period.?Moreover, most sections consistently achieved the Class II standard for TP. (2) The annual mean concentrations of CODMn and TP decreased more significantly in the middle reaches than in the lower reaches, whereas NH3-N exhibited the opposite trend. (3) Statistical analysis indicated that the improvement in water quality was closely associated with enhanced wastewater treatment capacity; however, rural sewage treatment remained inadequate. Therefore, strengthening rural sewage treatment systems and effectively controlling agricultural non-point source and fishery pollution are key to consolidating and expanding the achievements in water environment governance. When formulating water pollution control policies, it is imperative to balance regional economic development with environmental protection and adopt more targeted management measures.

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备注/Memo

备注/Memo:
收稿日期：2025-01-20
基金项目：中华人民共和国科学技术部重点研发计划（2022YFC3203404）
作者简介：王俊贤，硕士研究生。Email：1907371814@qq.com
*通信作者：李 杏，博士，副教授。Email：18079102@wit.edu.cn
更新日期/Last Update: 2026-05-07