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 CO(2 )fertilization

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DOI	10.1038/s41561-019-0436-1
	Field-experiment constraints on the enhancement of the terrestrial carbon sink by CO(2 )fertilization
	Liu, Yongwen; Piao, Shilong; Gasser, Thomas; Ciais, Philippe; Yang, Hui; Wang, Han; Keenan, Trevor F.; Huang, Mengtian; Wan, Shiqiang; Song, Jian; Wang, Kai; Janssens, Ivan A.; Penuelas, Josep; Huntingford, Chris; Wang, Xuhui; Arain, Muhammad Altaf; Fang, Yuanyuan; Fisher, Joshua B.; Huang, Maoyi; Huntzinger, Deborah N.; Ito, Akihiko; Jain, Atul K.; Mao, Jiafu; Michalak, Anna M.; Peng, Changhui; Poulter, Benjamin; Schwalm, Christopher; Shi, Xiaoying; Tian, Hanqin; Wei, Yaxing; Zeng, Ning; Zhu, Qiuan; Wang, Tao
通讯作者	Piao, SL (通讯作者)
发表日期	2019
ISSN	1752-0894
EISSN	1752-0908
起始页码	809
结束页码	+
卷号	12 期号:10
英文摘要	Clarifying how increased atmospheric CO2 concentration (eCO(2)) 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 eCO(2) 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 eCO(2) is linearly related to the site-scale sensitivity across the models. The emerging data-constrained eCO(2) sensitivity is 0.64 +/- 0.28 PgC yr(-1) per hundred ppm of eCO(2). 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.
关键词	MODEL INTERCOMPARISON PROJECT PROGRAM MULTISCALE SYNTHESIS FOREST PRODUCTIVITY CO2 FERTILIZATION ATMOSPHERIC CO2 NITROGEN UPTAKE ENRICHMENT CYCLE INCREASES SENSITIVITY
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000488223800008
来源期刊	NATURE GEOSCIENCE
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259664
推荐引用方式 GB/T 7714	Liu, Yongwen,Piao, Shilong,Gasser, Thomas,et al. Field-experiment constraints on the enhancement of the terrestrial carbon sink by CO(2 )fertilization[J]. 中国科学院青藏高原研究所,2019,12(10).
APA	Liu, Yongwen.,Piao, Shilong.,Gasser, Thomas.,Ciais, Philippe.,Yang, Hui.,...&Wang, Tao.(2019).Field-experiment constraints on the enhancement of the terrestrial carbon sink by CO(2 )fertilization.NATURE GEOSCIENCE,12(10).
MLA	Liu, Yongwen,et al."Field-experiment constraints on the enhancement of the terrestrial carbon sink by CO(2 )fertilization".NATURE GEOSCIENCE 12.10(2019).