globalchange  > 气候变化与战略
DOI: 10.5194/acp-20-2353-2020
Title:
Pathway dependence of ecosystem responses in China to 1.5 °C global warming
Author: Yue X.; Liao H.; Wang H.; Zhang T.; Unger N.; Sitch S.; Feng Z.; Yang J.
Source Publication: Atmospheric Chemistry and Physics
ISSN: 16807316
Publishing Year: 2020
Volume: 20, Issue:4
Language: 英语
Scopus Keyword: atmospheric pollution ; carbon budget ; carbon dioxide ; carbon emission ; ecosystem response ; global warming ; China
English Abstract: 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.
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被引频次[WOS]:1   [查看WOS记录]     [查看WOS中相关记录]
Document Type: 期刊论文
Identifier: http://119.78.100.158/handle/2HF3EXSE/159181
Appears in Collections:气候变化与战略

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Affiliation: 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, United States

Recommended Citation:
Yue X.,Liao H.,Wang H.,et al. Pathway dependence of ecosystem responses in China to 1.5 °C global warming[J]. Atmospheric Chemistry and Physics,2020-01-01,20(4)
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