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Weakening temperature control on the interannual variations of spring carbon uptake across northern lands
Piao, SL (Piao, Shilong)1,2,3; Liu, Z (Liu, Zhuo)2; Wang, T (Wang, Tao)1,3; Peng, SS (Peng, Shushi)2; Ciais, P (Ciais, Philippe)4; Huang, MT (Huang, Mengtian)2; Ahlstrom, A (Ahlstrom, Anders)5; Burkhart, JF (Burkhart, John F.)6; Chevallier, F (Chevallier, Frederic)4; Janssens, IA (Janssens, Ivan A.)7; Jeong, SJ (Jeong, Su-Jong)8; Lin, X (Lin, Xin)4; Mao, JF (Mao, Jiafu)9,10; Miller, J (Miller, John)11,12; Mohammat, A (Mohammat, Anwar)13; Myneni, RB (Myneni, Ranga B.)14; Penuelas, J (Penuelas, Josep)15; Shi, XY (Shi, Xiaoying)9,10; Stohl, A (Stohl, Andreas)17; Yao, YT (Yao, Yitong)2; Piao, SL
Source PublicationNATURE CLIMATE CHANGE
2017
Volume7Issue:5Pages:359-+
DOI10.1038/NCLIMATE3277
AbstractOngoing spring warming allows the growing season to begin earlier, enhancing carbon uptake in northern ecosystems(1-3). Here we use 34 years of atmospheric CO2 concentration measurements at Barrow, Alaska (BRW, 71 degrees N) to show that the interannual relationship between spring temperature and carbon uptake has recently shifted. We use two indicators: the spring zero-crossing date of atmospheric CO2 (SZC) and the magnitude of CO2 drawdown between May and June (SCC). The previously reported strong correlation between SZC, SCC and spring land temperature (ST) was found in the first 17 years of measurements, but disappeared in the last 17 years. As a result, the sensitivity of both SZC and SCC to warming decreased. Simulations with an atmospheric transport model(4) coupled to a terrestrial ecosystem model(5) suggest that the weakened interannual correlation of SZC and SCC with ST in the last 17 years is attributable to the declining temperature response of spring net primary productivity (NPP) rather than to changes in heterotrophic respiration or in atmospheric transport patterns. Reduced chilling during dormancy and emerging light limitation are possible mechanisms that may have contributed to the loss of NPP response to ST. Our results thus challenge the 'warmer spring-bigger sink' mechanism.
Subject Area普通生物学
WOS IDWOS:000400373500017
Language英语
Indexed BySCI
KeywordATMOSPHERIC CO2 FOREST MODEL SENSITIVITY ECOSYSTEMS LATITUDES PHENOLOGY DIOXIDE BALANCE SEASON
WOS Research AreaEnvironmental Sciences & Ecology; Meteorology & Atmospheric Sciences
WOS SubjectEnvironmental Sciences; Environmental Studies; Meteorology & Atmospheric Sciences
Cooperation Status国际
Citation statistics
Cited Times:37[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/8253
Collection图书馆
Corresponding AuthorPiao, SL
Affiliation1.Chinese Acad Sci, Key Lab Alpine Ecol & Biodivers, Inst Tibetan Plateau Res, Beijing 100085, Peoples R China.
2.Peking Univ, Sinofrench Inst Earth Syst Sci, Coll Urban & Environm Sci, Beijing 100871, Peoples R China.
3.Chinese Acad Sci, Ctr Excellence Tibetan Earth Sci, Beijing 100085, Peoples R China.
4.CEA CNRS UVSQ, Lab Sci Climat & Environm, F-91191 Gif Sur Yvette, France.
5.Stanford Univ, Sch Earth Energy & Environm Sci, Stanford, CA 94305 USA.
6.Univ Oslo, Dept Geosci, POB 1047 Blindem, N-0316 Oslo, Norway.
7.Univ Antwerp, Dept Biol, Univ Pl 1, B-2610 Antwerp, Belgium.
8.South Univ Sci & Technol China, Sch Environm Sci & Engn, Shenzhen 518055, Peoples R China.
9.Oak Ridge Natl Lab, Climate Change Sci Inst, Oak Ridge, TN 37831 USA.
10.Oak Ridge Natl Lab, Div Environm Sci, POB 2008, Oak Ridge, TN 37831 USA.
11.NOAA, ESRL, 325 Broadway, Boulder, CO 80305 USA.
12.Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA.
13.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Urumqi 830011, Xinjiang, Peoples R China.
14.Boston Univ, Dept Earth & Environm, 675 Commonwealth Ave, Boston, MA 02215 USA.
15.CREAF, Barcelona 08193, Catalonia, Spain.
16.CREAF CEAB CSIC UAB, CSIC, Global Ecol Unit, Barcelona 08193, Catalonia, Spain.
17.NILU Norwegian Inst Air Res, POB 100, N-2027 Kjeller, Norway.
Recommended Citation
GB/T 7714
Piao, SL ,Liu, Z ,Wang, T ,et al. Weakening temperature control on the interannual variations of spring carbon uptake across northern lands[J]. NATURE CLIMATE CHANGE,2017,7(5):359-+.
APA Piao, SL .,Liu, Z .,Wang, T .,Peng, SS .,Ciais, P .,...&Piao, SL.(2017).Weakening temperature control on the interannual variations of spring carbon uptake across northern lands.NATURE CLIMATE CHANGE,7(5),359-+.
MLA Piao, SL ,et al."Weakening temperature control on the interannual variations of spring carbon uptake across northern lands".NATURE CLIMATE CHANGE 7.5(2017):359-+.
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