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A Uniaxial Compression Experiment with CO2-Bearing Coal Using a Visualized and Constant-Volume Gas-Solid Coupling Test System
Published on: June 12, 2019
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Multiscale levels CO2 decouple reinforcement in China.
Lei Li1,2, Huiying Li2,3, Chuanhua Yang1,2
1School of Chemical Science and Technology, Yunnan University, University City East Outer Ring South Road, Kunming, 650500, China.
Environmental Science and Pollution Research International
|November 12, 2023
Summary
China
Area of Science:
- Environmental Science
- Economics
- Regional Studies
Background:
- Decoupling economic growth from CO2 emissions is crucial for China's sustainable development.
- A comprehensive inventory of decoupling status across national, regional, provincial, and city/county levels is needed for effective policy.
- Understanding spatiotemporal decoupling trends is essential for targeted environmental strategies.
Purpose of the Study:
- To investigate the decoupling status and trends across multiple administrative levels in China using the "N-RP-CC" approach.
- To analyze the spatiotemporal characteristics of CO2 emission decoupling from economic growth.
- To identify regional heterogeneities and inform policy formulation for improved decoupling.
Main Methods:
- Application of the Tapio decoupling model to calculate decoupling values for national, regional, provincial, and city/county levels (2006-2017).
- Utilizing cluster analysis based on industrial proportions to identify spatial heterogeneities at the city/county level.
- Comparative analysis of decoupling trends across different administrative scales.
Main Results:
- National-level decoupling shows continuous improvement, while regional trends are more vulnerable, particularly in northeastern and northern China.
- Significant provincial heterogeneities exist, with poor decoupling observed in several provinces and central regions.
- City and county levels exhibit diverse decoupling states, with spatiotemporal heterogeneities extending beyond regional scales, notably a north-south divide along the Yangtze River.
Conclusions:
- While national decoupling is improving, significant regional and local variations necessitate tailored policies.
- Addressing spatiotemporal heterogeneities, especially in vulnerable regions and specific industrial clusters, is key to achieving China's CO2 emission reduction goals.
- Policy recommendations include spatial optimization and technological investment to enhance CO2 emission decoupling across all administrative levels.
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