Analyzing the impact of coastal land use on seawater quality in the Bohai Rim of China

Abstract Against the backdrop of rapid urbanization and industrialization, land use in coastal areas substantially impacts the marine environment. However, comprehensive analyses of the relationship between land use and marine environments are lacking, especially in the context of long-term data and...

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Main Authors: Ruiqian Li, Yuhan Zhao, Xun Zeng, Wanlei Mao
Format: Article
Language:English
Published: Springer 2025-06-01
Series:Marine Development
Subjects:
Online Access:https://doi.org/10.1007/s44312-025-00055-4
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author Ruiqian Li
Yuhan Zhao
Xun Zeng
Wanlei Mao
author_facet Ruiqian Li
Yuhan Zhao
Xun Zeng
Wanlei Mao
author_sort Ruiqian Li
collection DOAJ
description Abstract Against the backdrop of rapid urbanization and industrialization, land use in coastal areas substantially impacts the marine environment. However, comprehensive analyses of the relationship between land use and marine environments are lacking, especially in the context of long-term data and within the framework of land–sea integrated governance. By establishing a theoretical framework, this research utilizes remote sensing data to invert seawater quality indicators and employs a panel data regression model to assess the long-term effects of coastal land use changes on seawater quality in the Bohai Rim from 2001 to 2020. The study reveals a U-shaped trend in seawater quality, with an initial decline followed by an improvement and significant regional variations. There is a notable shift in land use structure, with increases in grassland, construction land, and forest land areas at the expense of croplands. The expansion of construction land has a more pronounced negative impact on seawater quality compared with other land use types, particularly during the early stages of regional integration policies. Increasing ecological land can improve seawater quality, especially when it bolsters ecological functions and the marine environment’s carrying capacity. This study highlights the need for strategic marine environmental protection within the context of regional spatial governance. It advocates for policies that optimize land use, enhance ecological frameworks, and foster coordination among various stakeholders. This research provides key insights for advancing land–sea integrated governance, which is essential for sustainable marine conservation in coastal regions.
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issn 3004-832X
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publishDate 2025-06-01
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series Marine Development
spelling doaj-art-b1b84b5a5fed43f6830758171358ead82025-08-20T02:07:45ZengSpringerMarine Development3004-832X2025-06-013111710.1007/s44312-025-00055-4Analyzing the impact of coastal land use on seawater quality in the Bohai Rim of ChinaRuiqian Li0Yuhan Zhao1Xun Zeng2Wanlei Mao3School of International Affairs and Public Administration, Ocean University of ChinaSchool of International Affairs and Public Administration, Ocean University of ChinaSchool of International Affairs and Public Administration, Ocean University of ChinaSchool of International Affairs and Public Administration, Ocean University of ChinaAbstract Against the backdrop of rapid urbanization and industrialization, land use in coastal areas substantially impacts the marine environment. However, comprehensive analyses of the relationship between land use and marine environments are lacking, especially in the context of long-term data and within the framework of land–sea integrated governance. By establishing a theoretical framework, this research utilizes remote sensing data to invert seawater quality indicators and employs a panel data regression model to assess the long-term effects of coastal land use changes on seawater quality in the Bohai Rim from 2001 to 2020. The study reveals a U-shaped trend in seawater quality, with an initial decline followed by an improvement and significant regional variations. There is a notable shift in land use structure, with increases in grassland, construction land, and forest land areas at the expense of croplands. The expansion of construction land has a more pronounced negative impact on seawater quality compared with other land use types, particularly during the early stages of regional integration policies. Increasing ecological land can improve seawater quality, especially when it bolsters ecological functions and the marine environment’s carrying capacity. This study highlights the need for strategic marine environmental protection within the context of regional spatial governance. It advocates for policies that optimize land use, enhance ecological frameworks, and foster coordination among various stakeholders. This research provides key insights for advancing land–sea integrated governance, which is essential for sustainable marine conservation in coastal regions.https://doi.org/10.1007/s44312-025-00055-4Seawater qualityLand use transitionMarine environmental governanceLand–sea integrationImpact mechanismsCoastal regional development
spellingShingle Ruiqian Li
Yuhan Zhao
Xun Zeng
Wanlei Mao
Analyzing the impact of coastal land use on seawater quality in the Bohai Rim of China
Marine Development
Seawater quality
Land use transition
Marine environmental governance
Land–sea integration
Impact mechanisms
Coastal regional development
title Analyzing the impact of coastal land use on seawater quality in the Bohai Rim of China
title_full Analyzing the impact of coastal land use on seawater quality in the Bohai Rim of China
title_fullStr Analyzing the impact of coastal land use on seawater quality in the Bohai Rim of China
title_full_unstemmed Analyzing the impact of coastal land use on seawater quality in the Bohai Rim of China
title_short Analyzing the impact of coastal land use on seawater quality in the Bohai Rim of China
title_sort analyzing the impact of coastal land use on seawater quality in the bohai rim of china
topic Seawater quality
Land use transition
Marine environmental governance
Land–sea integration
Impact mechanisms
Coastal regional development
url https://doi.org/10.1007/s44312-025-00055-4
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AT yuhanzhao analyzingtheimpactofcoastallanduseonseawaterqualityinthebohairimofchina
AT xunzeng analyzingtheimpactofcoastallanduseonseawaterqualityinthebohairimofchina
AT wanleimao analyzingtheimpactofcoastallanduseonseawaterqualityinthebohairimofchina