Spatiotemporal characteristics of the ecological environmental quality in the Pearl River Basin from 2000 to 2020
Economic globalization has promoted to rapid urban expansion within the Pearl River Basin, leading to the degradation of the Ecological Environmental Quality (EEQ). This study aims to analyze the spatiotemporal evolution of EEQ in the Pearl River Basin under rapid urbanization period (from 2000 to 2...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2025-03-01
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| Series: | Geo-spatial Information Science |
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| Online Access: | https://www.tandfonline.com/doi/10.1080/10095020.2025.2473512 |
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| author | Junyi Chen Suozhong Chen Liang He Shenpeng Qiu Chao Yang |
| author_facet | Junyi Chen Suozhong Chen Liang He Shenpeng Qiu Chao Yang |
| author_sort | Junyi Chen |
| collection | DOAJ |
| description | Economic globalization has promoted to rapid urban expansion within the Pearl River Basin, leading to the degradation of the Ecological Environmental Quality (EEQ). This study aims to analyze the spatiotemporal evolution of EEQ in the Pearl River Basin under rapid urbanization period (from 2000 to 2020). A Modified Comprehensive Ecological Evaluation Index (MCEEI) that integrates the anthropogenic pressure index, biological richness index, vegetation cover index, land surface temperature, and surface relative humidity was proposed to address this issue. It was found that, since 2000, the overall EEQ of the Pearl River Basin has declined gradually, and the regions with a low EEQ are primarily located in the central areas of large cities (e.g. Nanning, Liuzhou, Guilin, Guangzhou, Foshan, and Shenzhen). Due to the “Grain for Green Project” policy (China’s nationwide program which pays farmers to revert sloping or marginal farm land to trees or grass), 11.11% of the land area in the Pearl River Basin experienced an improvement in EEQ from 2000 to 2010. However, the rapid expansion of urban areas accelerated the degradation in EEQ, and 22.62% of the EEQ degradation areas occurred in the urban areas from 2010 to 2020. Additionally, as human activities extend into mountainous areas, the proportion of poor and failing EEQ in mountain areas have increased rapidly. Our findings provide guidelines for ecological civilization construction and the protection of the ecological environment in the Pearl River Basin. |
| format | Article |
| id | doaj-art-94ca3318af9f47c8b071495272fb7865 |
| institution | OA Journals |
| issn | 1009-5020 1993-5153 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Geo-spatial Information Science |
| spelling | doaj-art-94ca3318af9f47c8b071495272fb78652025-08-20T02:30:05ZengTaylor & Francis GroupGeo-spatial Information Science1009-50201993-51532025-03-0111710.1080/10095020.2025.2473512Spatiotemporal characteristics of the ecological environmental quality in the Pearl River Basin from 2000 to 2020Junyi Chen0Suozhong Chen1Liang He2Shenpeng Qiu3Chao Yang4Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming, ChinaKey Laboratory of Virtual Geographic Environment, Ministry of Education, Nanjing Normal University, Nanjing, ChinaKey Laboratory of Virtual Geographic Environment, Ministry of Education, Nanjing Normal University, Nanjing, ChinaKey Laboratory of Virtual Geographic Environment, Ministry of Education, Nanjing Normal University, Nanjing, ChinaMNR Key Laboratory for Geo-Environmental Monitoring of Great Bay Area & Guangdong Key Laboratory of Urban Informatics & Shenzhen Key Laboratory of Spatial Smart Sensing and Services, Shenzhen University, Shenzhen, ChinaEconomic globalization has promoted to rapid urban expansion within the Pearl River Basin, leading to the degradation of the Ecological Environmental Quality (EEQ). This study aims to analyze the spatiotemporal evolution of EEQ in the Pearl River Basin under rapid urbanization period (from 2000 to 2020). A Modified Comprehensive Ecological Evaluation Index (MCEEI) that integrates the anthropogenic pressure index, biological richness index, vegetation cover index, land surface temperature, and surface relative humidity was proposed to address this issue. It was found that, since 2000, the overall EEQ of the Pearl River Basin has declined gradually, and the regions with a low EEQ are primarily located in the central areas of large cities (e.g. Nanning, Liuzhou, Guilin, Guangzhou, Foshan, and Shenzhen). Due to the “Grain for Green Project” policy (China’s nationwide program which pays farmers to revert sloping or marginal farm land to trees or grass), 11.11% of the land area in the Pearl River Basin experienced an improvement in EEQ from 2000 to 2010. However, the rapid expansion of urban areas accelerated the degradation in EEQ, and 22.62% of the EEQ degradation areas occurred in the urban areas from 2010 to 2020. Additionally, as human activities extend into mountainous areas, the proportion of poor and failing EEQ in mountain areas have increased rapidly. Our findings provide guidelines for ecological civilization construction and the protection of the ecological environment in the Pearl River Basin.https://www.tandfonline.com/doi/10.1080/10095020.2025.2473512Urban expansionecological environmental qualityecological evaluation indexspatiotemporal evolutionPearl River Basin |
| spellingShingle | Junyi Chen Suozhong Chen Liang He Shenpeng Qiu Chao Yang Spatiotemporal characteristics of the ecological environmental quality in the Pearl River Basin from 2000 to 2020 Geo-spatial Information Science Urban expansion ecological environmental quality ecological evaluation index spatiotemporal evolution Pearl River Basin |
| title | Spatiotemporal characteristics of the ecological environmental quality in the Pearl River Basin from 2000 to 2020 |
| title_full | Spatiotemporal characteristics of the ecological environmental quality in the Pearl River Basin from 2000 to 2020 |
| title_fullStr | Spatiotemporal characteristics of the ecological environmental quality in the Pearl River Basin from 2000 to 2020 |
| title_full_unstemmed | Spatiotemporal characteristics of the ecological environmental quality in the Pearl River Basin from 2000 to 2020 |
| title_short | Spatiotemporal characteristics of the ecological environmental quality in the Pearl River Basin from 2000 to 2020 |
| title_sort | spatiotemporal characteristics of the ecological environmental quality in the pearl river basin from 2000 to 2020 |
| topic | Urban expansion ecological environmental quality ecological evaluation index spatiotemporal evolution Pearl River Basin |
| url | https://www.tandfonline.com/doi/10.1080/10095020.2025.2473512 |
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