Synergistic Effects of Dual Low-Carbon Pilot Policies on Urban Green Land Use Efficiency

Strategic Insights -

Chinese researchers have conducted a comprehensive study on the impact of dual low-carbon pilot policies on urban green land use efficiency in China, utilizing a non-expected output super-efficiency SBM model and the multi-period Difference-in-Differences model. The study found that the dual-pilot policy significantly improves green land use efficiency, with coordinated implementation yielding greater efficiency gains than single-policy approaches. Mechanism analysis revealed that these policies enhance efficiency by promoting technological innovation and industrial agglomeration. However, spatial econometric analysis showed that while low-carbon policies improve local land use efficiency, they also create a siphoning effect on neighboring areas, with positive impacts observed within a 100-600 km range, diminishing and turning negative beyond 600 km.

Key Takeaways:

  • The dual-pilot policy significantly improves green land use efficiency, with coordinated implementation yielding greater efficiency gains than single-policy approaches.
  • Mechanism analysis suggests that these policies enhance efficiency by promoting technological innovation and industrial agglomeration.
  • The policy's impact is stronger in western regions, cities with high human capital, large urban centers, areas with stringent environmental regulations, and non-resource-dependent cities.
  • Spatial econometric analysis indicates that low-carbon policies create a siphoning effect on neighboring areas, with positive impacts observed within a 100-600 km range, diminishing and turning negative beyond 600 km.
  • Adaptive, context-sensitive policy design is crucial for addressing complex ecological and economic challenges in urban planning.
  • The study evaluated the green land use efficiency of 282 prefectural-level cities in China from 2006 to 2023 using the non-expected output super-efficiency SBM model.

Statistics:

  • 282 prefectural-level cities in China were evaluated in the study from 2006 to 2023.
  • The study used the non-expected output super-efficiency SBM model to assess green land use efficiency.
  • The multi-period Difference-in-Differences model was employed to empirically assess the impact and mechanisms of the dual-pilot policy.
  • The research concluded that the dual-pilot policy significantly improved green land use efficiency, with a coordinated implementation yielding greater efficiency gains than single-policy approaches.
  • The siphoning effect on neighboring areas was observed within a 100-600 km range, with diminishing and turning negative impacts beyond 600 km.

Sources:

  • Synergistic Effects of Dual Low-Carbon Pilot Policies on Urban Green Land Use Efficiency: Mechanisms and Spatial Spillovers Through Difference-in-Differences and Spatial Econometric Analysis. Land, 2025, 14(4):882. (Land - http://www.mdpi.com/journal/land)
  • The publisher for Land is MDPI AG.
  • A free version of this journal article is available at https://doi-org.sdpl.idm.oclc.org/10.3390/land14040882.