长江中下游河滨利用转型对河岸水质的影响

IF 8.4 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Journal of Environmental Management Pub Date : 2025-03-15 DOI:10.1016/j.jenvman.2025.124960

Hui Zou , Junfeng Ge , Yongjiu Cai , Xiaolong Wang , Xuejun Duan

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引用次数: 0

摘要

《长江保护战略》的目标是改善水质，降低沿江利用带来的环境风险。本研究以长江中下游2000公里为研究对象，在76个地点进行了实地调查和采样。研究了河滨利用与河岸水质的关系，并提出了分区管理策略。研究结果表明，从2017年到2022年，滨江开发利用率下降了0.5%，从生产导向向生活导向转变。不同类型河滨利用对水质的影响不同：以生活为导向的河滨显著提高了NH3-N水平，而以生产为导向的河滨显著提高了TP水平。以生活为导向的河滨对重金属污染的影响最小，而以生产为导向的河滨对Zn的影响显著。河滨利用率变化与锌水平呈显著正相关，表明工业污染是主要影响因素。在此基础上，划分了4种类型的河滨环境管理分区，确定了29.0%的关键河滨段，并提出了相应的管理措施。本研究对推进长江沿江岸线利用的科学管理，改善沿江水质具有现实意义。

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Effect of riverfront utilization transitions on riparian water quality in the middle-lower Yangtze River

The Yangtze River Protection Strategy aims to enhance water quality and mitigate environmental risks associated with riverfront utilization. This study targets a 2000-km stretch of the middle and lower Yangtze River, where we conducted field investigations and sampled at 76 locations. We investigated the relationship between riverfront utilization and riparian water quality, and proposed zoned management strategies. Our findings reveal that the riverfront development utilization rate decreased by 0.5 % from 2017 to 2022, with the transitions towards living-oriented utilization from production-oriented uses. The impact of riverfront utilization on water quality differs by type: living-oriented riverfronts significantly elevate NH₃-N levels, while production-oriented riverfronts notably increase TP levels. Regarding heavy metal pollutants, life-oriented riverfronts have a minimal impact, whereas production-oriented riverfronts significantly affect Zn concentrations. A strong positive correlation between changes in riverfront utilization rate and Zn levels suggests a primary influence from industrial sources. Based on these results, we have delineated four types of environmental management zoning for riverfront, pinpointed 29.0 % of critical riverfront segments, and outlined corresponding management measures. This research provides practical insights for advancing the scientific management of riverfront utilization along the Yangtze River and enhancing riparian water quality.

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来源期刊

Journal of Environmental Management 环境科学-环境科学

CiteScore

13.70

自引率

5.70%

发文量

2477

审稿时长

84 days

期刊介绍： The Journal of Environmental Management is a journal for the publication of peer reviewed, original research for all aspects of management and the managed use of the environment, both natural and man-made.Critical review articles are also welcome; submission of these is strongly encouraged.