Glacial flours as a potential source of Fe(II) and Fe(III) to polar waters
Glacial flours as a potential source of Fe(II) and Fe(III) to polar waters
复制标题
冰川粉是极地水域 Fe(II) 和 Fe(III) 的潜在来源
DOI:
10.1007/s10533-013-9945-y
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发表时间:
2014
期刊:
影响因子:
4
通讯作者:
Hopwood M
中科院分区:
文献类型:
--
作者:
Hopwood M
Supply of Fe to high nitrate low chlorophyll (HNLC) waters, such as the Southern Ocean, is the principle limiting factor for primary production and the associated carbon uptake. Glacial meltwaters have recently been shown to provide a globally substantial input of Fe to both Antarctic and Arctic polar waters. The particulate Fe flux in glacial runoff is several orders of magnitude greater than the dissolved Fe flux and yet little is known, to date, about the potential bioavailability of this particulate Fe. A fraction of particulate Fe may be bioavailable to organisms and thus have a significant impact on biota in HNLC zones. Here, we describe in detail the composition and speciation of Fe released from four different glacial flours. We show that the fraction of labile Fe varies markedly between different flours and is not proportional to total Fe. Furthermore a small fraction of the particulate Fe is available to the Fe(II) selective ligand ferrozine, which indicates active redox cycling on the surface of the flour.
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影响因子:
0.5
作者:
C. V. D. Zee;W. V. Raaphorst;W. Helder
通讯作者:
W. Helder
DOI:
10.1016/j.dsr2.2012.03.009
发表时间:
2012-09
影响因子:
3
作者:
Charles-Edouard Thuróczy;A. Alderkamp;P. Laan;L. Gerringa;M. Mills;G. V. Dijken;H. Baar;K. Arrigo
通讯作者:
Charles-Edouard Thuróczy;A. Alderkamp;P. Laan;L. Gerringa;M. Mills;G. V. Dijken;H. Baar;K. Arrigo
影响因子:
3
作者:
William L. Miller;D. Whitney King;Jie Lin;D. R. Kester
通讯作者:
William L. Miller;D. Whitney King;Jie Lin;D. R. Kester
影响因子:
5
作者:
M. Wells;L. Mayer
通讯作者:
L. Mayer
影响因子:
64.8
作者:
S. H.
通讯作者:
S. H.