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	16807316
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.
关键词	atmospheric pollution carbon budget carbon dioxide carbon emission ecosystem response global warming China
语种	英语
来源机构	Atmospheric Chemistry and Physics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/132203
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]. Atmospheric Chemistry and Physics,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.,20(4).
MLA	Yue X.,et al."Pathway dependence of ecosystem responses in China to 1.5 °C global warming".20.4(2020).