气候变化领域集成服务门户(CCPortal): Potentially bioavailable iron produced through benthic cycling in glaciated Arctic fjords of Svalbard

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DOI	10.1038/s41467-021-21558-w
	Potentially bioavailable iron produced through benthic cycling in glaciated Arctic fjords of Svalbard
	Laufer-Meiser K.; Michaud A.B.; Maisch M.; Byrne J.M.; Kappler A.; Patterson M.O.; Røy H.; Jørgensen B.B.
发表日期	2021
ISSN	2041-1723
卷号	12 期号:1
英文摘要	The Arctic has the highest warming rates on Earth. Glaciated fjord ecosystems, which are hotspots of carbon cycling and burial, are extremely sensitive to this warming. Glaciers are important for the transport of iron from land to sea and supply this essential nutrient to phytoplankton in high-latitude marine ecosystems. However, up to 95% of the glacially-sourced iron settles to sediments close to the glacial source. Our data show that while 0.6–12% of the total glacially-sourced iron is potentially bioavailable, biogeochemical cycling in Arctic fjord sediments converts the glacially-derived iron into more labile phases, generating up to a 9-fold increase in the amount of potentially bioavailable iron. Arctic fjord sediments are thus an important source of potentially bioavailable iron. However, our data suggests that as glaciers retreat onto land the flux of iron to the sediment-water interface may be reduced. Glacial retreat therefore likely impacts iron cycling in coastal marine ecosystems. © 2021, The Author(s).
语种	英语
scopus关键词	iron; water; benthos; bioavailability; biogeochemistry; fjord; glaciation; glacier retreat; nutrient cycling; phase transition; sediment-water interface; Arctic; Article; bioavailability; biogeochemical cycling; deglaciation; marine environment; sediment; Svalbard and Jan Mayen; Arctic; Svalbard; Svalbard and Jan Mayen
来源期刊	Nature Communications
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/250755
作者单位	Center for Geomicrobiology, Department of Biology, Aarhus University, Aarhus, Denmark; Center for Applied Geosciences, University of Tübingen, Tübingen, Germany; Department of Geological Sciences and Environmental Studies, Binghamton University, New York, United States; GEOMAR, Helmholtz Centre for Ocean Research Kiel, Kiel, Germany; Bigelow Laboratory for Ocean SciencesME, United States; School of Earth Sciences, University of Bristol, Wills Memorial Building, Bristol, United Kingdom
推荐引用方式 GB/T 7714	Laufer-Meiser K.,Michaud A.B.,Maisch M.,et al. Potentially bioavailable iron produced through benthic cycling in glaciated Arctic fjords of Svalbard[J],2021,12(1).
APA	Laufer-Meiser K..,Michaud A.B..,Maisch M..,Byrne J.M..,Kappler A..,...&Jørgensen B.B..(2021).Potentially bioavailable iron produced through benthic cycling in glaciated Arctic fjords of Svalbard.Nature Communications,12(1).
MLA	Laufer-Meiser K.,et al."Potentially bioavailable iron produced through benthic cycling in glaciated Arctic fjords of Svalbard".Nature Communications 12.1(2021).