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Has the Establishment of National Key Ecological Function Zones Improved Eco-Environmental Quality?—Evidence from a Quasi-Natural Experiment in 130 Counties in Sichuan Province, China

Author

Listed:
  • Yuanjie Deng

    (School of Economics, Sichuan University of Science & Engineering, Zigong 643000, China
    Research Center of Agricultural Economy, Sichuan University of Science & Engineering, Zigong 643000, China)

  • Lu Ming

    (School of Economics, Sichuan University of Science & Engineering, Zigong 643000, China)

  • Yifeng Hai

    (School of Economics, Sichuan University of Science & Engineering, Zigong 643000, China)

  • Hang Chen

    (School of Economics, Sichuan University of Science & Engineering, Zigong 643000, China)

  • Dingdi Jize

    (School of Economics, Sichuan University of Science & Engineering, Zigong 643000, China
    Research Center of Agricultural Economy, Sichuan University of Science & Engineering, Zigong 643000, China)

  • Ji Luo

    (School of Economics, Sichuan University of Science & Engineering, Zigong 643000, China
    Research Center of Agricultural Economy, Sichuan University of Science & Engineering, Zigong 643000, China)

  • Xiaohan Yan

    (College of Economics and Management, Northwest A&F University, Yangling 712100, China)

  • Xiaolong Zhang

    (The West Center for Economic Research, Southwest University of Finance and Economics, Chengdu 611130, China)

  • Shunbo Yao

    (College of Economics and Management, Northwest A&F University, Yangling 712100, China)

  • Mengyang Hou

    (School of Economics, Hebei University, Baoding 071000, China
    Research Center of Resources Utilization and Environmental Conservation, Hebei University, Baoding 071000, China)

Abstract

China’s National Key Ecological Function Zones (NKEFZs) currently represent the largest and most extensive ecological conservation policy in China, with one of the core objectives of this policy being to improve eco-environmental quality (EEQ). This study regards the establishment of NKEFZs as a quasi-natural experiment. Based on panel data from 130 counties in Sichuan Province from 2001 to 2021, a multi-period difference-in-differences (DID) model was employed to evaluate the impact of NKEFZ establishment on EEQ. The findings indicate the following: ① The establishment of NKEFZs can significantly enhance the EEQ of the covered areas, albeit as a gradual long-term process. This conclusion not only meets the parallel-trends assumption but also holds true in a series of robustness tests such as placebo tests. ② Mechanism analysis reveals that NKEFZs can enhance EEQ through the effects of optimizing land spatial allocation and upgrading industrial structure. ③ Heterogeneity analysis demonstrates that the beneficial effect of NKEFZs on EEQ varies across different functional zone types, geographic spaces and ethnic regions. Our study not only contributes to the accumulation of empirical evidence and institutional refinement in the sustainable implementation of ecological policies in China but also offers valuable insights and references for other countries in formulating policies for eco-environmental protection.

Suggested Citation

  • Yuanjie Deng & Lu Ming & Yifeng Hai & Hang Chen & Dingdi Jize & Ji Luo & Xiaohan Yan & Xiaolong Zhang & Shunbo Yao & Mengyang Hou, 2024. "Has the Establishment of National Key Ecological Function Zones Improved Eco-Environmental Quality?—Evidence from a Quasi-Natural Experiment in 130 Counties in Sichuan Province, China," Land, MDPI, vol. 13(5), pages 1-17, May.
    • Handle: RePEc:gam:jlands:v:13:y:2024:i:5:p:677-:d:1393874
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    References listed on IDEAS

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    1. Hongda Liu & Haifeng Zhao, 2022. "Upgrading models, evolutionary mechanisms and vertical cases of service-oriented manufacturing in SVC leading enterprises: Product-development and service-innovation for industry 4.0," Humanities and Social Sciences Communications, Palgrave Macmillan, vol. 9(1), pages 1-24, December.
    2. Goodman-Bacon, Andrew, 2021. "Difference-in-differences with variation in treatment timing," Journal of Econometrics, Elsevier, vol. 225(2), pages 254-277.
    3. Marianne Bertrand & Esther Duflo & Sendhil Mullainathan, 2004. "How Much Should We Trust Differences-In-Differences Estimates?," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 119(1), pages 249-275.
    4. Heyes, Anthony & Saberian, Soodeh, 2022. "Hot Days, the ability to Work and climate resilience: Evidence from a representative sample of 42,152 Indian households," Journal of Development Economics, Elsevier, vol. 155(C).
    5. Tongyue Zhang & Mengyang Hou & Liqi Chu & Lili Wang, 2022. "Can the Establishment of National Key Ecological Function Areas Enhance Vegetation Carbon Sink? A Quasi-Natural Experiment Evidence from China," IJERPH, MDPI, vol. 19(19), pages 1-21, September.
    6. Li, Pei & Lu, Yi & Wang, Jin, 2016. "Does flattening government improve economic performance? Evidence from China," Journal of Development Economics, Elsevier, vol. 123(C), pages 18-37.
    7. Jingtong Li & Qing Hai, 2023. "Evaluation of Economic Security and Environmental Protection Benefits from the Perspective of Sustainable Development and Technological Ecological Environment," Sustainability, MDPI, vol. 15(7), pages 1-13, March.
    8. Callaway, Brantly & Sant’Anna, Pedro H.C., 2021. "Difference-in-Differences with multiple time periods," Journal of Econometrics, Elsevier, vol. 225(2), pages 200-230.
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    1. Tang, Jia & Ni, Chenxu & Lu, Shuwei & Xiong, Jie & Wang, Mingzhe, 2025. "The cognitive benefits of ecosystem improvement: Evidence from China's National Key Ecological Function Zones," Social Science & Medicine, Elsevier, vol. 381(C).

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