Evidence for changes in carbon isotopic fractionation by phytoplankton between 1960 and 2010
Evidence for changes in carbon isotopic fractionation by phytoplankton between 1960 and 2010
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1960 年至 2010 年间浮游植物碳同位素分馏变化的证据
DOI:
10.1002/gbc.20045
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发表时间:
2013
影响因子:
5.2
通讯作者:
Young J
中科院分区:
文献类型:
--
作者:
Young J
Rising CO2is expected to drive a myriad of environmental changes in the surface ocean. Deciphering the phytoplankton response to this complex change is difficult. Here we determine whether a trend in the biological fractionation of stable carbon isotopes (εp) has occurred over the past 50 years.εpis primarily controlled by the acquisition and intracellular transport of inorganic carbon and the rate of carbon fixation. In turn, these processes are sensitive to phytoplankton physiology, community composition, and notably inorganic carbon availability.εpmay therefore carry a signal of biological response to climate change. Temporal and spatial records ofεpcan be deciphered from the difference between the stable carbon isotopic composition of particulate organic matter (δ13CPOC) and that of the ambient inorganic carbon pool (δ13CCO2). Here we establish a global record ofεpextending from the 1960s to today, extracted from a newly compiled data set of global measured δ13CPOCand part measured/part climatology δ13CCO2. We find thatεphas changed significantly since the 1960s in the low‐ to mid‐latitude surface ocean. The increase is most pronounced in the subtropics, where it is estimated at > 0.015‰ per year. Our findings of such rates of change are further supported by a high resolution temporal record from a single sediment trap near Bermuda. Our results are consistent with the idea thatεpis affected by increased inorganic carbon availability driven by the rise in atmospheric CO2.
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DOI:
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发表时间:
2001
期刊:
影响因子:
--
作者:
M. Baird;S. Emsley;J. Mcglade
通讯作者:
J. Mcglade
DOI:
10.1016/j.dsr2.2008.12.009
发表时间:
2009-04-01
影响因子:
3
作者:
Takahashi, Taro;Sutherland, Stewart C.;de Baar, Hein J. W.
通讯作者:
de Baar, Hein J. W.
DOI:
--
发表时间:
1999
期刊:
影响因子:
--
作者:
S. Burkhardt;U. Riebesell;I. Zondervan
通讯作者:
I. Zondervan
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
Ika A. Neven;J. Stefels;S. Heuven;H. Baar;J. Elzenga
通讯作者:
J. Elzenga
影响因子:
3.7
作者:
Y. Matsuda
通讯作者:
Y. Matsuda