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Widespread Increase...
Widespread Increases in Iron Concentration in European and North American Freshwaters
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- Björnerås, C. (author)
- Lund University,Lunds universitet,Enhet akvatisk ekologi,Biologiska institutionen,Naturvetenskapliga fakulteten,Division aquatic ecology,Department of Biology,Faculty of Science,Lund University, Lund, Sweden
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- Weyhenmeyer, Gesa A. (author)
- Uppsala universitet,Uppsala University,Limnologi
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- Evans, C. D. (author)
- Centre for Ecology & Hydrology, Wallingford,Environm Ctr Wales, Bangor, Wales
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- Gessner, Mark O. (author)
- Leibniz Institute of Freshwater Ecology and Inland Fisheries,Technical University of Berlin,Leibniz Inst Freshwater Ecol & Inland Fisheries I, Stechlin, Germany; TU Berlin, Berlin, Germany
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- Grossart, H. P. (author)
- Leibniz Institute of Freshwater Ecology and Inland Fisheries,University of Potsdam,Potsdam Univ, Potsdam, Germany
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- Kangur, K. (author)
- Estonian University of Life Sciences - EMÜ,Estonian Univ Life Sci, Rannu, Estonia
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- Kokorite, I. (author)
- University of Latvia,Univ Latvia, Riga, Latvia
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- Kortelainen, P. (author)
- Finnish Environment Institute,Finnish Environm Inst, Helsinki, Finland
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- Laudon, Hjalmar (author)
- Sveriges lantbruksuniversitet,Swedish University of Agricultural Sciences,Institutionen för skogens ekologi och skötsel,Department of Forest Ecology and Management,Swedish Univ Agr Sci, Umeå, Sweden
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- Lehtoranta, J. (author)
- Finnish Environment Institute,Finnish Environm Inst, Helsinki, Finland
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- Lottig, N. (author)
- University of Wisconsin-Madison,Univ Wisconsin, Madison, USA
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- Monteith, D. T. (author)
- Centre for Ecology & Hydrology, Wallingford,Lancaster Environm Ctr, Lancaster, England
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- Nõges, P (author)
- Estonian University of Life Sciences - EMÜ,Estonian Univ Life Sci, Tartu, Estonia
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- Nõges, T (author)
- Estonian University of Life Sciences - EMÜ,Estonian Univ Life Sci, Tartu, Estonia
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- Oulehle, F. (author)
- Global Change Research Centre of the Czech Academy of Sciences,Czech Geological Survey (CGS),Czech Geol Survey, Prague, Czech Republic
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- Riise, G. C. (author)
- Norwegian University of Life Sciences,Norwegian Univ Life Sci NMBU, As, Norway
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- Rusak, J. A. (author)
- Dorset Environmental Science Centre,Ontario Minist Environm & Climate Change, Dorset, Canada
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- Räike, A. (author)
- Finnish Environment Institute,Finnish Environm Inst, Helsinki, Finland
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- Sire, J. (author)
- Latvian Environment, Geology and Meteorology Centre,Latvian Environm Geol & Meteorol Ctr, Riga, Latvia
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- Kritzberg, E. S. (author)
- Lund University,Lunds universitet,Enhet akvatisk ekologi,Biologiska institutionen,Naturvetenskapliga fakulteten,Division aquatic ecology,Department of Biology,Faculty of Science,Dalhousie Univ, Halifax, Canada,Lund University, Lund, Sweden
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- Kritzberg, E. S. (author)
- Lund University,Lunds universitet,Enhet akvatisk ekologi,Biologiska institutionen,Naturvetenskapliga fakulteten,Division aquatic ecology,Department of Biology,Faculty of Science
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(creator_code:org_t)
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- 2017
- 2017
- English.
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In: Global Biogeochemical Cycles. - 0886-6236 .- 1944-9224. ; 31:10, s. 1488-1500
- Related links:
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https://doi.org/10.1...
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Abstract
Subject headings
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- Recent reports of increasing iron (Fe) concentrations in freshwaters are of concern, given the fundamental role of Fe in biogeochemical processes. Still, little is known about the frequency and geographical distribution of Fe trends or about the underlying drivers. We analyzed temporal trends of Fe concentrations across 340 water bodies distributed over 10 countries in northern Europe and North America in order to gain a clearer understanding of where, to what extent, and why Fe concentrations are on the rise. We found that Fe concentrations have significantly increased in 28% of sites, and decreased in 4%, with most positive trends located in northern Europe. Regions with rising Fe concentrations tend to coincide with those with organic carbon (OC) increases. Fe and OC increases may not be directly mechanistically linked, but may nevertheless be responding to common regional-scale drivers such as declining sulfur deposition or hydrological changes. A role of hydrological factors was supported by covarying trends in Fe and dissolved silica, as these elements tend to stem from similar soil depths. A positive relationship between Fe increases and conifer cover suggests that changing land use and expanded forestry could have contributed to enhanced Fe export, although increases were also observed in nonforested areas. We conclude that the phenomenon of increasing Fe concentrations is widespread, especially in northern Europe, with potentially significant implications for wider ecosystem biogeochemistry, and for the current browning of freshwaters.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Geokemi (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Geochemistry (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)
Keyword
- Browning
- Climate change
- Freshwaters
- Iron
- Trends
- browning
Publication and Content Type
- art (subject category)
- ref (subject category)
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To the university's database
- By the author/editor
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Björnerås, C.
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Weyhenmeyer, Ges ...
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Evans, C. D.
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Gessner, Mark O.
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Grossart, H. P.
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Kangur, K.
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show more...
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Kokorite, I.
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Kortelainen, P.
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Laudon, Hjalmar
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Lehtoranta, J.
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Lottig, N.
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Monteith, D. T.
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Nõges, P
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Nõges, T
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Oulehle, F.
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Riise, G. C.
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Rusak, J. A.
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Räike, A.
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Sire, J.
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Kritzberg, E. S.
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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and Geochemistry
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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and Environmental Sc ...
- Articles in the publication
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Global Biogeoche ...
- By the university
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Lund University
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Swedish University of Agricultural Sciences
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Uppsala University