The Relationship between Urbanization and the Water Environment in the Chengdu-Chongqing Urban Agglomeration

Yu Chen, Sisi Zhong, Xinlan Liang, Yanru Li, Jing Cheng and Ying Cao ()
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Yu Chen: College of Architecture and Urban-Rural Planning, Sichuan Agricultural University, Ya’an 625014, China
Sisi Zhong: Chengdu Urban Planning and Design Institute Co., Ltd., Chengdu 610031, China
Xinlan Liang: College of Water Conservancy and Hydro-Power Engineering, Sichuan Agricultural University, Ya’an 625014, China
Yanru Li: College of Architecture and Urban-Rural Planning, Sichuan Agricultural University, Ya’an 625014, China
Jing Cheng: College of Architecture and Urban-Rural Planning, Sichuan Agricultural University, Ya’an 625014, China
Ying Cao: College of Water Conservancy and Hydro-Power Engineering, Sichuan Agricultural University, Ya’an 625014, China

Land, 2024, vol. 13, issue 7, 1-24

Abstract: Ensuring the harmonization between urbanization and water environment systems is imperative for fostering sustainable regional development in the future. With urban agglomerations and metropolitan areas increasingly dominating urbanization trends in China, it is crucial to explore the interdependent relationship between urbanization and the water environment. Such exploration holds significant implications for water resource management and the formulation of urbanization policies. This study utilizes a comprehensive index system encompassing urbanization and the water environment. It examines the coupled and coordinated spatial and temporal dynamics of these systems within the Chengdu-Chongqing Urban Agglomeration from 2011 to 2019. This analysis employs the Coupled Coordination Degree model alongside the spatial autocorrelation model. The results show that there is still much room for improving the urbanization development level and the water environment quality. During the study period, a nonlinear and nearly U-shaped evolutionary trajectory was observed between the two systems. The results suggest that there is a progression from basic to more advanced coordination between urbanization and water environment at the city cluster scale. Urbanization appears to generally lag behind the water environment in terms of coordination. At the municipal scale, there is a gradient in which some cities show better coordination compared to others. Spatially, the coupling and coordination of this region exhibited dual-core development characteristics centered around Chengdu and Chongqing. The region is in the transition stage towards a core-type networked and decentralized development mode, which has not yet formed an integrated pattern. This offers a theoretical and technical framework for harmonizing water environments and urbanization in similar regions globally.

Keywords: urbanization; water environment; coupling and coordination model; spatial correlation model; Chengdu-Chongqing urban agglomeration (search for similar items in EconPapers)
JEL-codes: Q15 Q2 Q24 Q28 Q5 R14 R52 (search for similar items in EconPapers)
Date: 2024
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