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Abstract
The summary has been revised as follows: In karst regions, the relationship between urbanization and atmospheric particulate matter is crucial for mitigating air pollution. Previous studies often focused on single-perspective discussions, lacking comprehensive multi-perspective analyses. Based on multi-source remote sensing data from 2000 to 2022 for the Qianzhong urban agglomeration (QUA)), we constructed the normalized principal component urbanization index (NPCUI) and normalized principal component atmospheric particulate matter index (NPCAIPM) to delve into the spatiotemporal coupling relationship between the urbanization and atmospheric particulate matter. The results demonstrate that NPCUI and NPCAIPM offer a more comprehensive and precise representation of urbanization processes and particulate matter concentrations compared to traditional single indicators. Since the implementation of the Western Development Strategy in 2011, urbanization indicators in Guizhou have shown significant growth, with PM2.5 and PM10 levels increasing by 75.78% and 55.87%, respectively. These findings illustrate industrialization's and urban expansion's effects on air quality. Integrating perspectives from geography, systematics, and physics, we discovered complex spatiotemporal coupling dynamics between urbanization and atmospheric particulates. Coordination has improved over time, but regional differences remain evident. This study provides critical insights and a scientific basis for addressing atmospheric particulate pollution during the urbanization process in karst regions, emphasizing the importance of high-quality coordinated development.
Published Version
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