globalchange  > 气候变化事实与影响
DOI: 10.1002/2017GB005802
Scopus记录号: 2-s2.0-85040192508
论文题名:
Influence of Vegetation Growth on the Enhanced Seasonality of Atmospheric CO2
作者: Yuan W; , Piao S; , Qin D; , Dong W; , Xia J; , Lin H; , Chen M
刊名: Global Biogeochemical Cycles
ISSN: 8866236
出版年: 2018
卷: 32, 期:1
起始页码: 32
结束页码: 41
语种: 英语
英文关键词: atmospheric CO2 ; seasonality ; vegetation index
Scopus关键词: annual variation ; atmosphere-biosphere interaction ; carbon cycle ; climate modeling ; concentration (composition) ; growing season ; NDVI ; respiration ; satellite altimetry ; seasonal variation ; seasonality ; trend analysis ; vegetation dynamics
英文摘要: The amplitude of seasonal fluctuations in concentrations of atmospheric CO2 has increased over recent decades. Model-based studies suggest that this increase could be the result of enhanced vegetation growth during the growing season and ecosystem respiration in the nongrowing season. Here we investigated seasonal changes in vegetation growth derived from satellite-based observations of the normalized difference vegetation index (NDVI) from 1982 to 2013. We found notable agreement between these observations and interannual variations of seasonality of global atmospheric CO2, suggesting that terrestrial vegetation growth is the dominant driver of the seasonality of the concentration of atmospheric CO2. Specifically, we found that the trend in seasonality of global vegetation growth was not continuous from 1982 to 2013 and that it increased substantially after 2001. In response, the trend of seasonality in the concentration of atmospheric CO2 stalled from 1982 to 2000 but increased from 2001 onward. This 2001 change in the growth seasonality trend was largely a result of decreased NDVI during spring and winter. CMIP5 models were unable to reproduce this observed seasonality. Our results showed the dominant role played by vegetation growth in determining atmospheric CO2 seasonality, highlighting the need to improve representation of vegetation growth in current terrestrial models to adequately indicate seasonal changes in the concentration of atmospheric CO2. ©2017. American Geophysical Union. All Rights Reserved.
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被引频次[WOS]:29   [查看WOS记录]     [查看WOS中相关记录]
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/77680
Appears in Collections:气候变化事实与影响

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作者单位: State Key Laboratory of Cryospheric Sciences, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, China; Laboratory for Regional Oceanography and Numerical Modeling, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China; College of Urban and Environmental Sciences, Peking University, Beijing, China; School of Atmosphere Science, Sun Yat-Sen University, Guangzhou, China; State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University, Beijing, China; Institute of Space and Earth Information Science, The Chinese University of Hong Kong, Hong Kong; Department of Geography and Resource Management, The Chinese University of Hong Kong, Hong Kong; Key Laboratory of Virtual Geographic Environment (Nanjing Normal University), Ministry of Education, Nanjing, China; Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing, China

Recommended Citation:
Yuan W,, Piao S,, Qin D,et al. Influence of Vegetation Growth on the Enhanced Seasonality of Atmospheric CO2[J]. Global Biogeochemical Cycles,2018-01-01,32(1)
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