Changes in the Response of the Northern Hemisphere Carbon Uptake to Temperature Over the Last Three Decades

doi:10.1029/2018GL077316

	Changes in the Response of the Northern Hemisphere Carbon Uptake to Temperature Over the Last Three Decades
	Bastos, A (Bastos, Ana)2,3; Piao, SL (Piao, Shilong)4,5; Yin, Y (Yin, Yi)1,2; Ciais, P (Ciais, Philippe)2; Liu, HY (Liu, Hongyan)4; Chevallier, F (Chevallier, Frederic)2; Li, W (Li, Wei)2; Wang, T (Wang, Tao)5
刊名	GEOPHYSICAL RESEARCH LETTERS
	2018-05-16
卷号	45 期号:9 页码:4371-4380
关键词	ATMOSPHERIC CO2 SEASONAL CYCLE SURFACE-TEMPERATURE SOIL RESPIRATION EXCHANGE DIOXIDE ECOSYSTEMS INCREASES WINTER FLUX
ISSN号	0094-8276
DOI	10.1029/2018GL077316
英文摘要	The CO2 seasonal cycle amplitude (SCA) in the Northern Hemisphere has increased since the 1960sa feature attributed mainly to enhanced vegetation activity along climate warming and CO2 increase. We identified a temporal change in the sign of the correlation between SCA and air temperature (T) from positive to negative around the year 2000 at most Northern Hemisphere ground stations, consistent with signals from satellite column CO2 measurements since the mid-2000s. Further, we explored potential causes of this change using net biome productivity estimates from three atmospheric inversions for the period 1980-2015. The change in the SCA-T relationship is primarily attributable to changes in the net biome productivity-T relationship: positive correlations weakened in the spring in the high latitudes, confirming a limit to the "warmer spring-bigger carbon sink" mechanism; negative correlations diminished in the autumn/winter in the mid-to-high latitudes, challenging the "warmer winter-larger carbon release" assumption and highlighting the complexity of carbon processes outside the peak growing season.
WOS研究方向	Geology
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000434111700069
内容类型	期刊论文
源URL	[http://ir.itpcas.ac.cn/handle/131C11/8643]
专题	青藏高原研究所_图书馆
作者单位	1.CALTECH, Pasadena, CA 91125 USA; 2.CEA CNRS UVSQ, Lab Sci Climat & Environm, Gif Sur Yvette, France; 3.Ludwig Maximilians Univ Munchen, Dept Geog, Munich, Germany; 4.Peking Univ, Dept Ecol, Coll Urban & Environm Sci, Beijing, Peoples R China; 5.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol & Biodivers, Beijing, Peoples R China.
推荐引用方式 GB/T 7714	Bastos, A ,Piao, SL ,Yin, Y ,et al. Changes in the Response of the Northern Hemisphere Carbon Uptake to Temperature Over the Last Three Decades[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(9):4371-4380.
APA	Bastos, A .,Piao, SL .,Yin, Y .,Ciais, P .,Liu, HY .,...&Wang, T .(2018).Changes in the Response of the Northern Hemisphere Carbon Uptake to Temperature Over the Last Three Decades.GEOPHYSICAL RESEARCH LETTERS,45(9),4371-4380.
MLA	Bastos, A ,et al."Changes in the Response of the Northern Hemisphere Carbon Uptake to Temperature Over the Last Three Decades".GEOPHYSICAL RESEARCH LETTERS 45.9(2018):4371-4380.