What question did this study set out to answer?

This research aims to understand how the spatial configuration of megacity clusters impacts their carbon emissions.

January 25, 2026SustainabilityOpen Access

Impacts of Polycentric Spatial Structure of Chinese Megacity Clusters on Their Carbon Emission Intensity

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This research aims to understand how the spatial configuration of megacity clusters impacts their carbon emissions.
Constructed an inter-period panel dataset from 2002 to 2023.
Applied a fixed-effects model to analyze carbon emission intensity.
Utilized the Lind–Mehlum U-shape test to determine nonlinear relationships.
Examined the mediating role of industrial agglomeration with a two-step approach.
Incorporated interaction terms to analyze the moderating effects of innovation and infrastructure.
Identified a significant U-shaped relationship between polycentric structure and carbon emission intensity.
Found that carbon emission intensity is minimized at a specific threshold of polycentricity.
Demonstrated that industrial agglomeration significantly mediates the relationship.
Revealed that technological innovation and transport infrastructure are critical moderators.

Authors

YFYuxian FengHohai University RMRuowei MouHohai University LJL. JinHohai University

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Implication

Investigates the effect of polycentric spatial structures on carbon emission intensity in Chinese megacity clusters, suggesting optimal adjustments for better sustainability.

Cite This Study

Feng et al. (2026) studied this question.

synapsesocial.com/papers/6975b1cefeba4585c2d6d52d https://doi.org/10.3390/su18031146

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Implication

Investigates the effect of polycentric spatial structures on carbon emission intensity in Chinese megacity clusters, suggesting optimal adjustments for better sustainability.

Impacts of Polycentric Spatial Structure of Chinese Megacity Clusters on Their Carbon Emission Intensity

Key Points

Discussion

Implication

Cite This Study

Impacts of Polycentric Spatial Structure of Chinese Megacity Clusters on Their Carbon Emission Intensity

Key Points

Discussion

Implication

Cite This Study

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