气候变化领域集成服务门户(CCPortal): Field-experiment constraints on the enhancement of the terrestrial carbon sink by CO2 fertilization

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DOI	10.1038/s41561-019-0436-1
	Field-experiment constraints on the enhancement of the terrestrial carbon sink by CO2 fertilization
	Liu Y.; Piao S.; Gasser T.; Ciais P.; Yang H.; Wang H.; Keenan T.F.; Huang M.; Wan S.; Song J.; Wang K.; Janssens I.A.; Peñuelas J.; Huntingford C.; Wang X.; Altaf Arain M.; Fang Y.; Fisher J.B.; Huang M.; Huntzinger D.N.; Ito A.; Jain A.K.; Mao J.; Michalak A.M.; Peng C.; Poulter B.; Schwalm C.; Shi X.; Tian H.; Wei Y.; Zeng N.; Zhu Q.; Wang T.
发表日期	2019
ISSN	17520894
卷号	12 期号:10
英文摘要	Clarifying how increased atmospheric CO2 concentration (eCO2) contributes to accelerated land carbon sequestration remains important since this process is the largest negative feedback in the coupled carbon–climate system. Here, we constrain the sensitivity of the terrestrial carbon sink to eCO2 over the temperate Northern Hemisphere for the past five decades, using 12 terrestrial ecosystem models and data from seven CO2 enrichment experiments. This constraint uses the heuristic finding that the northern temperate carbon sink sensitivity to eCO2 is linearly related to the site-scale sensitivity across the models. The emerging data-constrained eCO2 sensitivity is 0.64 ± 0.28 PgC yr−1 per hundred ppm of eCO2. Extrapolating worldwide, this northern temperate sensitivity projects the global terrestrial carbon sink to increase by 3.5 ± 1.9 PgC yr−1 for an increase in CO2 of 100 ppm. This value suggests that CO2 fertilization alone explains most of the observed increase in global land carbon sink since the 1960s. More CO2 enrichment experiments, particularly in boreal, arctic and tropical ecosystems, are required to explain further the responsible processes. © 2019, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
scopus关键词	air-snow interaction; air-soil interaction; carbon dioxide; carbon sequestration; carbon sink; Northern Hemisphere; terrestrial ecosystem
来源期刊	Nature Geoscience
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/124599
作者单位	Key Laboratory of Alpine Ecology, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, China; CAS Center for Excellence in Tibetan Plateau Earth Sciences, Chinese Academy of Sciences, Beijing, China; Sino-French Institute for Earth System Science, College of Urban and Environmental Sciences, Peking University, Beijing, China; International Institute for Applied Systems Analysis, Laxenburg, Austria; Laboratoire des Sciences du Climat et de l’Environnement, CEA-CNRS-UVSQ, Gif-sur-Yvette, France; Department of Earth System Science, Tsinghua University, Beijing, China; Climate and Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, United States; Department of Environmental Science, Policy and Management, UC Berkeley, Berkeley, CA, United States; College of Life Sciences, Hebei University, Baoding, Hebei, China; Department of Biology, University of Antwerp, Wilrijk, Belgium; CREAF, Cerdanyola del Valles, Barcelona, Catalonia, Spain; CSIC, Global Ecology Un...
推荐引用方式 GB/T 7714	Liu Y.,Piao S.,Gasser T.,et al. Field-experiment constraints on the enhancement of the terrestrial carbon sink by CO2 fertilization[J],2019,12(10).
APA	Liu Y..,Piao S..,Gasser T..,Ciais P..,Yang H..,...&Wang T..(2019).Field-experiment constraints on the enhancement of the terrestrial carbon sink by CO2 fertilization.Nature Geoscience,12(10).
MLA	Liu Y.,et al."Field-experiment constraints on the enhancement of the terrestrial carbon sink by CO2 fertilization".Nature Geoscience 12.10(2019).