globalchange  > 影响、适应和脆弱性
DOI: 10.1111/gcb.13909
Scopus记录号: 2-s2.0-85031104057
论文题名:
On the causes of trends in the seasonal amplitude of atmospheric CO2
作者: Piao S.; Liu Z.; Wang Y.; Ciais P.; Yao Y.; Peng S.; Chevallier F.; Friedlingstein P.; Janssens I.A.; Peñuelas J.; Sitch S.; Wang T.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2018
卷: 24, 期:2
起始页码: 608
结束页码: 616
语种: 英语
英文关键词: amplitude of atmospheric CO2 ; attribution ; climate change ; CO2 fertilization effect ; detection ; land-use change
英文摘要: No consensus has yet been reached on the major factors driving the observed increase in the seasonal amplitude of atmospheric CO2 in the northern latitudes. In this study, we used atmospheric CO2 records from 26 northern hemisphere stations with a temporal coverage longer than 15 years, and an atmospheric transport model prescribed with net biome productivity (NBP) from an ensemble of nine terrestrial ecosystem models, to attribute change in the seasonal amplitude of atmospheric CO2. We found significant (p <.05) increases in seasonal peak-to-trough CO2 amplitude (AMPP -T) at nine stations, and in trough-to-peak amplitude (AMPT -P) at eight stations over the last three decades. Most of the stations that recorded increasing amplitudes are in Arctic and boreal regions (>50°N), consistent with previous observations that the amplitude increased faster at Barrow (Arctic) than at Mauna Loa (subtropics). The multi-model ensemble mean (MMEM) shows that the response of ecosystem carbon cycling to rising CO2 concentration (eCO2) and climate change are dominant drivers of the increase in AMPP -T and AMPT -P in the high latitudes. At the Barrow station, the observed increase of AMPP -T and AMPT -P over the last 33 years is explained by eCO2 (39% and 42%) almost equally than by climate change (32% and 35%). The increased carbon losses during the months with a net carbon release in response to eCO2 are associated with higher ecosystem respiration due to the increase in carbon storage caused by eCO2 during carbon uptake period. Air-sea CO2 fluxes (10% for AMPP -T and 11% for AMPT -P) and the impacts of land-use change (marginally significant 3% for AMPP -T and 4% for AMPT -P) also contributed to the CO2 measured at Barrow, highlighting the role of these factors in regulating seasonal changes in the global carbon cycle. © 2017 John Wiley & Sons Ltd
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/110552
Appears in Collections:影响、适应和脆弱性
气候变化事实与影响

Files in This Item:

There are no files associated with this item.


作者单位: Sino-French Institute for Earth System Science, College of Urban and Environmental Sciences, Peking University, Beijing, China; Key Laboratory of Alpine Ecology and Biodiversity, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, China; Center for Excellence in Tibetan Earth Science, Chinese Academy of Sciences, Beijing, China; Laboratoire des Sciences du Climat et de l'Environnement, CEA CNRS UVSQ, Gif-sur-Yvette, France; College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter, United Kingdom; Department of Biology, University of Antwerp, Wilrijk, Belgium; CREAF, Barcelona, Catalonia, Spain; CSIC, Global Ecology Unit CREAF- CSIC-UAB, Barcelona, Catalonia, Spain; College of Life and Environmental Sciences, University of Exeter, Exeter, United Kingdom

Recommended Citation:
Piao S.,Liu Z.,Wang Y.,et al. On the causes of trends in the seasonal amplitude of atmospheric CO2[J]. Global Change Biology,2018-01-01,24(2)
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Piao S.]'s Articles
[Liu Z.]'s Articles
[Wang Y.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Piao S.]'s Articles
[Liu Z.]'s Articles
[Wang Y.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Piao S.]‘s Articles
[Liu Z.]‘s Articles
[Wang Y.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.