文献类型：期刊文献

英文题名：Two-Tier Synergic Governance of Greenhouse Gas Emissions and Air Pollution in China's Megacity, Shenzhen: Impact Evaluation and Policy Implication

作者：Jiang, Jingjing[1];Ye, Bin[4];Shao, Shuai[2];Zhou, Nan[3];Wang, Dashan[4];Zeng, Zhenzhong[4];Liu, Junguo[4]

机构：[1]Harbin Inst Technol Shenzhen, Sch Econ & Management, Shenzhen 518055, Peoples R China;[2]East China Univ Sci & Technol, Sch Business, Shanghai 200237, Peoples R China;[3]Lawrence Berkeley Natl Lab, Energy Anal & Environm Impacts Div, Berkeley, CA 94720 USA;[4]Southern Univ Sci & Technol, Sch Environm Sci & Engn, Shenzhen 518055, Peoples R China

年份：2021

卷号：55

期号：11

起止页码：7225

外文期刊名：ENVIRONMENTAL SCIENCE & TECHNOLOGY

收录：;EI(收录号：20212110410430);WOS:【SSCI(收录号:WOS:000659374200004)，SCI-EXPANDED(收录号:WOS:000659374200004)】；

基金：This study appreciates the support from the National Social Science Foundation of China (20CGL036), the National Natural Science Foundation of China (71803074), the Energy Foundation (G-1807-28052), the Science and Technology Planning Project of Shenzhen City (JCYJ20190806144415100 and JCYJ20190809162809440), and the National Key R&D Program of China (2018YFE0206200).

语种：英文

外文关键词：GHG emissions; air pollution; synergic governance; megacities; urban electrification; renewable power supply

摘要：Making a cost-effective governance of greenhouse gas (GHG) emissions and air pollution is of great importance for megacities to pursue a sustainable future. To achieve this, the present study advocates megacities to implement a two-tier synergic governance system consisting of both synergic governance between GHG and air pollutant emission reductions and between megacities and their surrounding regions. Based on the LEAP model and WRFSMOKE-CMAQ simulation platform, this study found that climate governance of China's megacity, Shenzhen, could synergistically contribute to decreasing urban annual PM2.5 concentration by 5.6% in 2030. Using synergic governance with surrounding regions could further help cap and then quickly decrease the megacity's GHG emissions and lower its PM2.5 concentrations by an additional 11.8%. The results demonstrated the substantial effects of transdepartment and transregional synergic governance on Shenzhen's GHG emission reduction and air quality improvement. Furthermore, this study suggested road transportation and power generation and supply as the two priority fields for wide-ranging megacities to promote two-tier synergic governance, highlighting an integration of improved urban electrification with high-efficiency electricity use and a renewable-based power supply.