气候变化领域集成服务门户(CCPortal): A carbon-neutrality-capactiy index for evaluating carbon sink contributions

CCPortal

DOI	10.1016/j.ese.2023.100237
	A carbon-neutrality-capactiy index for evaluating carbon sink contributions
	Bai, Xiaoyong; Zhang, Sirui; Li, Chaojun; Xiong, Lian; Song, Fengjiao; Du, Chaochao; Li, Minghui; Luo, Qing; Xue, Yingying; Wang, Shijie
发表日期	2023
ISSN	2666-4984
卷号	15
英文摘要	The accurate determination of the carbon-neutrality capacity (CNC) of a region is crucial for developing policies related to emissions and climate change. However, a systematic diagnostic method for deter-mining the CNC that considers the rock chemical weathering carbon sink (RCS) is lacking. Moreover, it is challenging but indispensable to establish a fast and practical index model to determine the CNC. Here, we selected Guizhou as the study area, used the methods for different types of carbon sinks, and con-structed a CNC index (CNCI) model. We found that: (1) the carbonate rock chemical weathering carbon sink flux was 30.3 t CO2 km-2 yr-1. Guizhou accounted for 1.8% of the land area and contributed 5.4% of the carbonate chemical weathering carbon sink; (2) the silicate rock chemical weathering carbon sink and its flux were 1.44 x 103 t CO2 and 2.43 t CO2 km-2 yr-1, respectively; (3) the vegetation-soil ecosystem carbon sink and its flux were 1.37 x 108 t CO2 and 831.70 t CO2 km-2 yr-1, respectively; (4) the carbon emissions (CEs) were 280 Tg CO2, about 2.8% of the total for China; and (5) the total carbon sinks in Guizhou were 160 Tg CO2, with a CNCI of 57%, which is 4.8 times of China and 2.1 times of the world. In summary, we conducted a systematic diagnosis of the CNC considering the RCS and established a CNCI model. The results of this study have a strong implication and significance for national and global CNC determination and gap analysis.(c) 2023 The Author(s). Published by Elsevier B.V. on behalf of Chinese Society for Environmental Sciences, Harbin Institute of Technology, Chinese Research Academy of Environmental Sciences. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
英文关键词	Carbon neutrality; Carbon sink; Carbon source; Rock chemical weathering; Carbon budget
语种	英语
WOS研究方向	Green & Sustainable Science & Technology ; Environmental Sciences
WOS类目	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000935156300001
来源期刊	ENVIRONMENTAL SCIENCE AND ECOTECHNOLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/281429
作者单位	Chinese Academy of Sciences; Guiyang Institute of Geochemistry, CAS; Guizhou Normal University
推荐引用方式 GB/T 7714	Bai, Xiaoyong,Zhang, Sirui,Li, Chaojun,et al. A carbon-neutrality-capactiy index for evaluating carbon sink contributions[J],2023,15.
APA	Bai, Xiaoyong.,Zhang, Sirui.,Li, Chaojun.,Xiong, Lian.,Song, Fengjiao.,...&Wang, Shijie.(2023).A carbon-neutrality-capactiy index for evaluating carbon sink contributions.ENVIRONMENTAL SCIENCE AND ECOTECHNOLOGY,15.
MLA	Bai, Xiaoyong,et al."A carbon-neutrality-capactiy index for evaluating carbon sink contributions".ENVIRONMENTAL SCIENCE AND ECOTECHNOLOGY 15(2023).