ORIGINAL RESEARCH article
Front. Earth Sci.
Sec. Geoscience and Society
Volume 13 - 2025 | doi: 10.3389/feart.2025.1621392
Research on Spatial Environmental Quality and Driving Forces in Chaohu Region Based on PSR Modelling
Provisionally accepted
- 1Anhui Jianzhu University, Hefei, China
- 2Anhui University, Hefei,Anhui, China
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Against the backdrop of rapid urbanisation leading to ecological space compression and wors ening environmental pollution, investigating the patterns of spatial environmental quality evolu tion in typical lake basins is crucial for regional sustainable development. This study takes th e Huaihu Lake region of China (including 1 city, 1 district, and 3 counties) as its subject. B ased on the Pressure-State-Response (PSR) model, a multi-dimensional indicator system incor porating both natural and human factors was established. Combining the Entropy Weight-TOP SIS method with ArcGIS spatial analysis technology, the spatial environmental quality of the region from 2019 to 2023 was assessed. The results indicate: 1) During the study period, th e spatial environmental quality of the basin showed a fluctuating upward trend, with the relat ive proximity of spatial environmental quality in the Chaohu region increasing to 0.536. How ever, it was significantly influenced by urbanisation and resource consumption, resulting in n oticeable phased fluctuations. 2) Environmental quality exhibited a spatial differentiation patter n of higher quality in the northwest and lower quality in the southeast, with Baohe District having the best quality, Feixi County and Feidong County having relatively good quality, and Chaohu City and Lujiang County having relatively poor quality; 3) Comparing the weight c oefficients of various indicators, among the 19 indicators in the PSR framework, the five ind icators with the highest weight coefficients were annual average sulphur dioxide concentration (P3), per capita disposable income of household residents (S2), added value of the tertiary i ndustry (R2), fiscal expenditure on energy conservation and environmental protection (R4), an d gross domestic product (R6). The Chaohu River Basin requires differentiated governance st rategies to balance urbanisation and ecological protection-urban densely populated areas shou ld strengthen pollution control and green infrastructure investment, while ecologically sensitive areas must strictly adhere to resource consumption red lines. The 'zonal governance' strategy 字体: (中文)Calibri, 非加粗, (中 文)英语(美国)
Keywords: Presure-State-Response(PSR) model, Chaohu prefecture, Anhui, The spatial environment, Entropy weight method - TOPSIS, Influencing factors
Received: 01 May 2025; Accepted: 02 Jul 2025.
Copyright: © 2025 Zhang, Yuan and Guo. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Yanlong Guo, Anhui University, Hefei,Anhui, China
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