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Contributions of terrestrial organic carbon to northern lake sediments
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- Gudasz, Cristian, 1973- (author)
- Uppsala universitet,Umeå universitet,Institutionen för ekologi, miljö och geovetenskap,Limnology, Department of Ecology and Genetics, Limnology, Uppsala University, Uppsala, Sweden,Climate Impacts Research Centre (CIRC) ; Arcum,Limnologi,Umea Univ, Dept Ecol & Environm Sci, CIRC, Umea, Sweden
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- Ruppenthal, Marc (author)
- Eberhard Karls Univ Tuebingen, Forsch Bereich Geog, Tubingen, Germany
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- Kalbitz, Karsten (author)
- Tech Univ Dresden, Inst Soil Sci & Site Ecol, Fac Environm Sci, Soil Resources & Land Use, Tharandt, Germany;Univ Amsterdam, IBED, Amsterdam, Netherlands
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- Cerli, Chiara (author)
- Univ Amsterdam, IBED, Amsterdam, Netherlands
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- Fielder, Sabine (author)
- Johannes Gutenberg Univ Mainz, Inst Geog, Mainz, Germany
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- Oelmann, Yvonne (author)
- Eberhard Karls Univ Tuebingen, Forsch Bereich Geog, Tubingen, Germany
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- Andersson, August (author)
- Stockholm Univ, Dept Environm Sci & Analyt Chem ACES, Stockholm, Sweden
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- Karlsson, Jan (author)
- Umeå universitet,Institutionen för ekologi, miljö och geovetenskap,Climate Impacts Research Centre (CIRC) ; Arcum,Umea Univ, Dept Ecol & Environm Sci, CIRC, Umea, Sweden
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(creator_code:org_t)
- 2017-10-03
- 2017
- English.
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In: Limnology and Oceanography Letters. - : Wiley. - 2378-2242. ; 2:6, s. 218-227
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Abstract
Subject headings
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- Sediments of northern lakes sequester large amounts of organic carbon (OC), but direct evidence of the relative importance of their sources is lacking. We used stable isotope ratios of nonexchangeable hydrogen (δ2Hn) in topsoil, algae, and surface sediments in order to measure the relative contribution of terrestrial OC in surface sediments of 14 mountainous arctic and lowland boreal lakes in Sweden. The terrestrial contribution to the sediment OC pool was on average 66% (range 46–80) and similar between arctic and boreal lakes. Proxies for the supply of terrestrial and algal OC explained trends in the relative contribution of terrestrial OC across lakes. However, the data suggest divergent predominant sources for terrestrial OC of sediments in Swedish lakes, with dissolved matter dominating in lowland boreal lakes and particulate OC in mountainous arctic lakes.
Subject headings
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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