Quantification of the carbon emission of urban residential buildings: The case of the Greater Bay Area cities in China

被引:56
作者
Geng, Jingjing [1 ,2 ]
Wang, Jiajia [1 ,3 ]
Huang, Jianguang [4 ]
Zhou, Ding [1 ]
Bai, Jing [1 ]
Wang, Jiayuan [1 ]
Zhang, Hui [1 ,5 ]
Duan, Huabo [1 ]
Zhang, Wenbo [6 ]
机构
[1] Shenzhen Univ, Coll Civil & Transportat Engn, Key Lab Coastal Urban Resilient Infrastruct MOE, Shenzhen 518060, Peoples R China
[2] Jiangsu Vocat Coll Med, Coll Med Technol, Yancheng 224005, Peoples R China
[3] Univ Hong Kong, Dept Real Estate & Construct, Hong Kong, Peoples R China
[4] Shanghai Fengxian Dist City Appearance & Environm, Shanghai 201400, Peoples R China
[5] Wuhan Inst Technol, Sch Chem & Environm Engn, Wuhan 430205, Peoples R China
[6] Chinese Acad Environm Planning, Beijing 100012, Peoples R China
基金
中国国家自然科学基金;
关键词
Urban residential building; Carbon emissions; Life cycle assessment; Carbon peak; Greater Bay Area; DEMOLITION WASTE MANAGEMENT; LIFE-CYCLE ASSESSMENT; CO2; EMISSIONS; ENERGY-CONSUMPTION; ENVIRONMENTAL IMPACTS; CONSTRUCTION WASTE; DIOXIDE EMISSIONS; SECTOR; STOCK; GENERATION;
D O I
10.1016/j.eiar.2022.106775
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Building sector plays a significant role in China's ambitous climate targets to peak carbon emissions (CEs) by 2030 and to realize carbon neutral by 2060. However, studies in characterizing the CEs of urban residential buildings from life-cycle perspective at regional level are still limited, especially for the Guangdong-Hong Kong-Macao Greater Bay Area (GBA) in China. Here, life cycle assessment method and improved building stock turnover model were employed to quantify the annual CEs of urban residential buildings (including materialization CEs of the newly-built urban residential buildings, operational CEs of the existing urban residential buildings, and CEs generated from the demolition of the existing urban residential buildings) in GBA cities from 2000 to 2018. The results show that the total CEs increased dramatically from 44.5 Mt. CO2 e in 2000 to 75.1 Mt. CO2 e in 2018 with an annual growth rate by approximately 3%. The CEs from operation stage accounted for around 70%, and recycling building wastes could reduce 7.5% emissions. Compared with other bay areas globally, the operational CEs of urban residential building in GBA became the highest since 2014. Therefore, climate actions in energy saving and emission mitigation are required. Based on scenario analysis, we estimated that Huizhou city can reach the peak target by 2020 if taking some effective measures. These emission findings could provide data references and suggestions for the low-carbon development path for urban residential buildings in GBA and other global cities.
引用
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页数:15
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