期刊
SCIENCE OF THE TOTAL ENVIRONMENT
卷 714, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.scitotenv.2020.136841
关键词
Decoupling; PM2.5 emissions; Economic growth; Investment; China; Governance
资金
- National Natural Science Foundation of China [71810107001, 71690241, 71922015, 71773075, 71503168]
- National Top-Notch Young Talent Support Program of China
- Major Project of National Social Science Foundation of China [18ZDA051]
- Shanghai Jiao Tong University [SJTU-2019UGBD-03]
- Shanghai Philosophy and Social Science Fund Project [2015BJB005, 2019BJB001]
- Shanghai Super-Postdoctor Incentive Project
- Shanghai Municipal Government [17XD1401800]
- Postdoctoral fund [18Z102060077]
- MOE (Ministry of Education in China) Youth Foundation Project of Humanities and Social Sciences [18YJC6.0148]
- MOE (Ministry of Education in China) Project of Humanities and Social Sciences [16YJAZH054]
It is crucial to decouple economic growth from environmental pollution in China. This study aims to evaluate China's decoupling level between PM2.5 emissions and economic growth from a regional investment perspective. Using the panel data of 30 Chinese provinces for the period of 1998-2016, this study combines decomposition analysis with decoupling analysis to identify the roles of conventional factors and three novel investment factors in the mitigation and decoupling of PM2.5 emissions in China and its four sub-regions. The results show that China's PM2.5 emissions were weakly decoupled to economic growth during the period of 1998-2016, as well as in China's four sub-regions. At the national level, investment scale played the dominant role while investment structure had a marginal effect in mitigating the decoupling level. In contrast, emission intensity was the largest driver in promoting the decoupling effect. At the regional level, emission intensity and investment efficiency accelerated the regional decoupling level, but the coupling effect from investment scale in the western region far exceeded those in other three sub-regions. At the provincial level, the investment structure of Inner Mongolia and investment scales of Xinjiang and Inner Mongolia had the greatest impacts on PM2.5 emission growth. Finally, several policy recommendations are raised for China to mitigate its PM2.5 emissions. (C) 2020 Elsevier B.V. All rights reserved.
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