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How does functional division within urban agglomeration affect CO2 emissions? An empirical study.

Mingming Zhang1, Fangting Chen2, Liyun Liu3

  • 1College of Economics and Management, China University of Petroleum (East China), Qingdao, 266580, China. zmmsdutgl@163.com.

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|May 1, 2023
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Summary
This summary is machine-generated.

Improving urban functional division can decrease carbon dioxide (CO2) emissions in urban agglomerations (UAs). This enhanced division also reduces emissions in neighboring cities, demonstrating a positive spillover effect for environmental sustainability.

Keywords:
Carbon dioxide emissionsFunctional divisionMediation modelSpatial Durbin model

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Area of Science:

  • Environmental Science
  • Urban Planning
  • Economics

Background:

  • Intensified urbanization necessitates cities addressing air pollution.
  • Urban agglomerations (UAs) are critical units for environmental management.
  • Understanding functional division's impact on CO2 emissions is vital.

Purpose of the Study:

  • To analyze the influence of functional division on CO2 emissions within UAs.
  • To investigate the spillover effects of functional division on adjacent cities.
  • To examine the mediating roles of economic growth, industrial structure, and technological progress.

Main Methods:

  • Spatial Durbin model to explore spillover effects within UAs.
  • Parallel multiple mediation model to assess mediating effects.
  • Empirical analysis conducted on the Yangtze River Delta, China.

Main Results:

  • A positive "U-shaped" relationship exists between functional division and CO2 emissions at the UA level.
  • Current functional division levels are on the left side of the curve, indicating improvement reduces emissions.
  • Enhanced functional division significantly reduces CO2 emissions in adjacent cities (spillover effect).

Conclusions:

  • Functional division negatively impacts CO2 emissions, with improvements leading to reductions.
  • Economic growth, industrial structure, and technological progress significantly mediate this relationship.
  • Optimizing these pathways via functional division effectively lowers CO2 emissions within UAs.