| DOI: | 10.1002/2014GL062249
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| 论文题名: | Phytoplankton plasticity drives large variability in carbon fixation efficiency |
| 作者: | Ayata S.-D.; Lévy M.; Aumont O.; Resplandy L.; Tagliabue A.; Sciandra A.; Bernard O.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9475
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| EISSN: | 1944-9206
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| 出版年: | 2014
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| 卷: | 41, 期:24 | | 起始页码: | 8994
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| 结束页码: | 9000
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| 语种: | 英语
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| 英文关键词: | model
; phytoplankton
; production
; stoichiometry
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| Scopus关键词: | Carbon
; Carbon dioxide
; Efficiency
; Models
; Nitrogen
; Phytoplankton
; Plasticity
; Production
; Stoichiometry
; Biogeochemical modeling
; C:N stoichiometry
; Carbon consumption
; Carbon sequestration
; Future predictions
; High resolution
; Oligotrophic conditions
; Spatial and temporal scale
; Nitrogen fixation
; basin analysis
; biogeochemistry
; carbon fixation
; carbon sequestration
; eutrophic environment
; nitrogen cycle
; oligotrophic environment
; physiological response
; phytoplankton
; primary production
; spatiotemporal analysis
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| 英文摘要: | Phytoplankton C:N stoichiometry is highly flexible due to physiological plasticity, which could lead to high variations in carbon fixation efficiency (carbon consumption relative to nitrogen). However, the magnitude, as well as the spatial and temporal scales of variability, remains poorly constrained. We used a high-resolution biogeochemical model resolving various scales from small to high, spatially and temporally, in order to quantify and better understand this variability. We find that phytoplankton C:N ratio is highly variable at all spatial and temporal scales (5-12 molC/molN), from mesoscale to regional scale, and is mainly driven by nitrogen supply. Carbon fixation efficiency varies accordingly at all scales (±30%), with higher values under oligotrophic conditions and lower values under eutrophic conditions. Hence, phytoplankton plasticity may act as a buffer by attenuating carbon sequestration variability. Our results have implications for in situ estimations of C:N ratios and for future predictions under high CO2 world. Key PointsBasin-scale high-resolution simulation of flexible phytoplankton C:N ratiosLarge C:N variability revealed at mesoscale, between trophic regimes and seasonsThis damps carbon sequestration variability at all scales ©2014. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84921856199&doi=10.1002%2f2014GL062249&partnerID=40&md5=3479b21189e5711daa6283ceb625113e
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/6739
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Sorbonne Universités, UPMC Université Paris 06, UMR 7093, LOV, Observatoire Océanologique, Villefranche/mer, France
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| Recommended Citation: | |
Ayata S.-D.,Lévy M.,Aumont O.,et al. Phytoplankton plasticity drives large variability in carbon fixation efficiency[J]. Geophysical Research Letters,2014-01-01,41(24).
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