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Coupling relationship between construction land expansion and PM2.5 in China

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Abstract

Urban air pollution with PM2.5 as the main pollutant has become increasingly prominent in China since 2010. Scholars have conducted many studies on how urbanization affects PM2.5, but few concerns about the relationship between construction land (CL) expansion and PM2.5 at different scales from the perspective of expansion rate. Therefore, this study takes CL and PM2.5 data in China to describe the spatiotemporal progress of atmospheric environmental pollution and then adopts the overall and spatial coupling models to quantitatively reveal the dynamic relationship between them. The results indicate that the growth rate of PM2.5-polluted area in China was found to increase rapidly for 2000–2010 time period, followed by a continuous decline afterward. The annual average growth rates of CL area and PM2.5-polluted area within 15 years were 4.43% and 2.46%, respectively. Moreover, the barycenter distance between PM2.5 concentration and CL decreased gradually, and the two barycenters approached closer. Also, the spatial coupling coordination of CL and PM2.5 enhanced in Central, West, and East China but weakened in Northeast. Cities with a “very strong” coupling type are mainly located in the “Chongqing-Beijing” belt and the lower-middle reaches of the Yangtze River. Finally, the spatial coupling model results show that a low PM2.5 concentration is closely related to CL expansion. This study will provide a basis for cross-regional joint air pollution control and the management of heavily polluted areas in China.

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Data Availability

The datasets used during the current study are available from the corresponding author on reasonable request.

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Acknowledgements

We would like to express our respects and gratitude to the anonymous reviewers and editors for their professional comments and suggestions.

Funding

This research has been supported by the National Natural Science Foundation of China (Grant No. 41701173, Grant No. 41961027), Science Foundation for the Excellent Youth Scholars of Ministry of Education of China (Grant No. 17YJCZH268), and LZJTU EP (Grant No.201806).

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Authors and Affiliations

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Contributions

Liang Zhou: conceptualization and writing-original draft. Bo Yuan: methodology, writing-review and editing, and supervision. Haowei Mu: resources and visualization. Xuewei Dang: software. Shaohua Wang: polishing the manuscript. The author(s) read and approved the final manuscript.

Corresponding author

Correspondence to Bo Yuan.

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The authors declare no competing interests.

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Responsible editor: Eyup Dogan

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Highlights

1. Spatiotemporal features of PM2.5 and construction land were revealed through area growth rate.

2. Overall and spatial coupling models were employed to explore the coupling relationship between PM2.5 and construction land.

3. Spatial coupling coordination of construction land and PM2.5 enhanced in northeast but weakened in other regions.

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Zhou, L., Yuan, B., Mu, H. et al. Coupling relationship between construction land expansion and PM2.5 in China. Environ Sci Pollut Res 28, 33669–33681 (2021). https://doi.org/10.1007/s11356-021-13160-w

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  • DOI: https://doi.org/10.1007/s11356-021-13160-w

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