气候变化领域集成服务门户(CCPortal): Pathway dependence of ecosystem responses in China to 1.5 °C global warming

CCPortal

DOI	10.5194/acp-20-2353-2020
	Pathway dependence of ecosystem responses in China to 1.5 °C global warming
	Yue X.; Liao H.; Wang H.; Zhang T.; Unger N.; Sitch S.; Feng Z.; Yang J.
发表日期	2020
ISSN	1680-7316
起始页码	2353
结束页码	2366
卷号	20 期号:4
英文摘要	China is currently the world's largest emitter of both CO2 and short-lived air pollutants. Ecosystems in China help mitigate a part of the country's carbon emissions, but they are subject to perturbations in CO2, climate, and air pollution. Here, we use a dynamic vegetation model and data from three model inter-comparison projects to examine ecosystem responses in China under different emission pathways towards the 1.5 ĝC warming target set by the Paris Agreement. At 1.5 ĝC warming, gross primary productivity (GPP) increases by 15.5±5.4 % in a stabilized pathway and 11.9±4.4 % in a transient pathway. CO2 fertilization is the dominant driver of GPP enhancement and climate change is the main source of uncertainties. However, differences in ozone and aerosols explain the GPP differences between pathways at 1.5 ĝC warming. Although the land carbon sink is weakened by 17.4±19.6 % in the stabilized pathway, the ecosystems mitigate 10.6±1.4 % of national emissions in the stabilized pathway, more efficient than the fraction of 6.3±0.8 % in the transient pathway. To achieve the 1.5 ĝC warming target, our analysis suggests a higher allowable carbon budget for China under a stabilized pathway with reduced emissions in both CO2 and air pollutants. © 2020. This work is distributed under the Creative Commons Attribution 4.0 License.
语种	英语
scopus关键词	atmospheric pollution; carbon budget; carbon dioxide; carbon emission; ecosystem response; global warming; China
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/247950
作者单位	Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Scienceĝ€̄andĝ€̄Technology (NUIST), Nanjing, 210044, China; Ministry of Education Key Laboratory of Meteorological Disaster, Joint International Research Laboratory of Climate and Environment Change, NUIST, Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing, 210044, China; State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China; College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter, EX4ĝ€̄4QE, United Kingdom; Institute of Ecology, School of Applied Meteorology, NUIST, Nanjing, 210044, China; Department of Forestry, Mississippi State University, Mississippi, MS 39762...
推荐引用方式 GB/T 7714	Yue X.,Liao H.,Wang H.,et al. Pathway dependence of ecosystem responses in China to 1.5 °C global warming[J],2020,20(4).
APA	Yue X..,Liao H..,Wang H..,Zhang T..,Unger N..,...&Yang J..(2020).Pathway dependence of ecosystem responses in China to 1.5 °C global warming.ATMOSPHERIC CHEMISTRY AND PHYSICS,20(4).
MLA	Yue X.,et al."Pathway dependence of ecosystem responses in China to 1.5 °C global warming".ATMOSPHERIC CHEMISTRY AND PHYSICS 20.4(2020).