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The Impact and Mechanism of the Increased Integration of Urban Agglomerations on the Eco-Efficiency of Cities in the Region—Taking the Chengdu–Chongqing Urban Agglomeration in China as an Example

Author

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  • Yuting Jian

    (College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China)

  • Yongchun Yang

    (College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
    Key Laboratory of Western China’s Environmental Systems, Ministry of Education of the People’s Republic of China, Lanzhou University, Lanzhou 730000, China)

  • Jing Xu

    (College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China)

Abstract

China is attaching increasing importance to the creation of regional integration, high-quality economic development and ecological civilization. An accurate grasp of the traction effect of the increased level of integration of urban agglomerations on the eco-efficiency (EE) of cities in the region will help to promote the steady improvement of urban economic development and the ecological environment. This paper constructs an index system to measure the level of integration of the Chengdu–Chongqing urban agglomeration (CCUA) and the EE of each city within it from 2011 to 2020 and explores the impact of regional integration on urban EE and its mechanism of action. The study presents the follow findings: (1) The level of integration of the CCUA increased nearly 10 times from 2011 to 2020, with the government playing a significant leading role. (2) The positive and negative effects of the level of integration of the CCUA on urban EE depend on factors such as the level of economic development, the stage of development and the location. There are several relationships between the level of intra-regional integration and urban EE: first, a nearly linear increase, as in Chongqing and Chengdu; second, an increase in fluctuation, as in Dazhou, Guang’an and Leshan; and third, a fluctuation, decrease, flat or even no real increase, as in Luzhou, Ya’an and Zigong. (3) Based on this, this paper considers the mechanism of the level of integration within the region on urban EE in terms of both economic and eco-environmental effects, with a view to exploring the future green development path of the CCUA.

Suggested Citation

  • Yuting Jian & Yongchun Yang & Jing Xu, 2023. "The Impact and Mechanism of the Increased Integration of Urban Agglomerations on the Eco-Efficiency of Cities in the Region—Taking the Chengdu–Chongqing Urban Agglomeration in China as an Example," Land, MDPI, vol. 12(3), pages 1-21, March.
    • Handle: RePEc:gam:jlands:v:12:y:2023:i:3:p:684-:d:1097680
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    References listed on IDEAS

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    1. Kunpeng Ai & Ning Xu, 2023. "Does Regional Integration Improve Carbon Emission Performance?—A Quasi-Natural Experiment on Regional Integration in the Yangtze River Economic Belt," Sustainability, MDPI, vol. 15(20), pages 1-19, October.

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