Smart city development and urban sustainability: A study on green-land use efficiency in China’s urban agglomerations
As smart cities continue to develop rapidly, improving the green efficiency of urban land use has become essential for fostering long-term urban sustainability. This study employs empirical analysis to explore the impact of smart city development on urban green land-use efficiency. It adopts a super-efficiency slack-based measure model to evaluate the green efficiency of urban land use and applies a difference-in-differences approach to assess the effects of smart city development. The analysis is based on data from 50 prefecture-level cities across three major urban regions in China, covering the period from 2009 to 2023. The results indicate that smart city advancements significantly increase urban green land-use efficiency. The findings also highlight heterogeneity in policy effects, with cities characterized by advanced infrastructure, higher human capital, and substantial capital investment showing more pronounced improvements. The study provides valuable insights into how smart city development influences land-use efficiency and offers empirical evidence to guide the design of more effective, context-specific strategies for optimizing resource management and fostering sustainable urban development.
Batty, M. (2013). Building a science of cities. In: The New Science of Cities. United States: The MIT Press, p. 13-46. https://doi.org/10.7551/mitpress/9399.003.0007
Färe, R., & Zelenyuk, V. (2020). Profit efficiency: Generalization, business accounting and the role of convexity. Economics Letters, 196:109483. https://doi.org/10.1016/j.econlet.2020.109483
Geels, F. W. (2011). The multi-level perspective on sustainability transitions: Responses to seven criticisms. Environmental Innovation and Societal Transitions, 1(1):24-40. https://doi.org/10.1016/j.eist.2011.02.002
Grin, J., Rotmans, J., & Schot, J. (2010). Transitions to Sustainable Development: New Directions in the Study of Long Term Transformative Change. Milton Park: Routledge, p. 35-38. https://doi.org/10.4324/9780203856598
Guo, J., Feng, P., Xue, H., & Xue, J. (2025). Spatial-temporal characteristics and drivers of urban built-up areas land low-carbon efficiency in China. Scientific Reports, 15(1):1623. https://doi.org/10.1038/s41598-025-85808-3
Guo, Q., Zeng, D., & Lee, C. C. (2023). Impact of smart city pilot on energy and environmental performance: China-based empirical evidence. Sustainable Cities and Society, 97:104731. https://doi.org/10.1016/j.scs.2023.104731
Huang, H., & Yang, J. (2024). Analysis of the spatiotemporal differentiation and influencing factors of land use efficiency in the Beijing-Tianjin-Hebei urban agglomeration. Land, 13(9):1508. https://doi.org/10.3390/land13091508
Jiang, H., Jiang, P., Wang, D., & Wu, J. (2021). Can smart city construction facilitate green total factor productivity? A quasi-natural experiment based on China’s pilot smart city. Sustainable Cities and Society, 69:102809. https://doi.org/10.1016/j.scs.2021.102809
Khan, H. H., Malik, M. N., Zafar, R., Goni, F. A., Chofreh, A. G., Klemeš, J. J., et al. (2020). Challenges for sustainable smart city development: A conceptual framework. Sustainable Development, 28(5):1507-1518. https://doi.org/10.1002/sd.2090
Khezrimotlagh, D., Zhu, J., Cook, W. D., & Toloo, M. (2019). Data envelopment analysis and big data. European Journal of Operational Research, 274(3):1047-1054. https://doi.org/10.1016/j.ejor.2018.10.044
Li, F., Zheng, W., Wang, Y., Liang, J., Xie, S., Guo, S., et al. (2019). Urban green space fragmentation and urbanization: A spatiotemporal perspective. Forests, 10(4):333. https://doi.org/10.3390/f10040333
Li, H., Wang, Z., Zhu, M., Hu, C., & Liu, C. (2023). Study on the spatial-temporal evolution and driving mechanism of urban land green use efficiency in the Yellow River Basin cities. Ecological Indicators, 154:110672. https://doi.org/10.1016/j.ecolind.2023.110672
Li, W., Cai, Z., & Jin, L. (2024). Urban green land use efficiency of resource-based cities in China: Multidimensional measurements, spatial-temporal changes, and driving factors. Sustainable Cities and Society, 104:105299. https://doi.org/10.1016/j.scs.2024.105299
Ministry of Ecology and Environment of China. (2023). China Environmental Statistical Yearbook 2023. China Environmental Science Press. Available from: https://www. mee.gov.cn/hjzl/sthjzk/sthjtjnb [Last accessed on 2025 Dec 20].
National Bureau of Statistics of China. (2023). China Statistical Yearbook 2023. China Statistics Press. Available from: https://www.stats.gov.cn/sj/ndsj/2024/indexch.html [Last accessed on 2025 Dec 20].
Salih, A. D., & Mohammed, H. A. (2024). Industrial Location Theories-An Overview. In: AIP Conference Proceedings. Vol. 3009. United States: AIP Publishing LLC, p. 030056. https://doi.org/10.1063/5.0190672
Wang, Y. (2022). The impacts of improvements in the unified economic and environmental efficiency of transportation infrastructure on industrial structure transformation and upgrade from the perspective of resource factors. PLoS One, 17(12):e0278722. https://doi.org/10.1371/journal.pone.0278722
Wen, R., & Li, H. (2024). Impact of digital economy on urban land green use efficiency: Evidence from Chinese cities. Environmental Research Communications, 6(5):055008. https://doi.org/10.1088/2515-7620/ad4514
Xu, L., Wang, D., & Du, J. (2021). The heterogeneous influence of infrastructure construction on China’s urban green and smart development-the threshold effect of urban scale. Land, 10(10):1015. https://doi.org/10.3390/land10101015
Zhang, J., & Sun, T. (2024). The impact of digital finance on the green utilization efficiency of urban land: Evidence from 281 cities in China. Sustainability, 16(5):2003. https://doi.org/10.3390/su16052003
Zhang, L., Zhang, C., Gao, C., & Wang, C. (2025). Exploring the impact of urban expansion on urban green land use efficiency: A case study of Chengdu-Chongqing urban agglomeration. Frontiers in Public Health, 13:1596250. https://doi.org/10.3389/fpubh.2025.1596250
Zhou, C., & Li, X. (2025). Impact of smart cities on urban resilience: The roles of land green utilization efficiency and industrial structure transformation. Land, 14(7):1373. https://doi.org/10.3390/land14071373
Zhou, G., Xu, H., Jiang, C., Deng, S., Chen, L., & Zhang, Z. (2024). Has the digital economy improved the urban land green use efficiency? Evidence from the national big data comprehensive pilot zone policy. Land, 13(7):960. https://doi.org/10.3390/land13070960