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Biogenic phosphorus in oligotrophic mountain lake sediments: Differences in composition measured with NMR spectroscopy
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2006 (English)In: Water Research, ISSN 0043-1354, E-ISSN 1879-2448, Vol. 40, no 20, 3705-3712 p.Article in journal (Refereed) Published
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Text
Abstract [en]

Phosphorus (P) composition in alkaline sediment extracts from three Swedish oligotrophic mountain lakes was investigated using P-31-NMR spectroscopy. Surface sediments from one natural lake and two mature reservoirs, one of which has received nutrient additions over the last 3 years, were compared with respect to biogenic P composition. The results show significant differences in the occurrence of labile and biogenic P species in the sediments of the different systems. The P compound groups that varied most between these three systems were pyrophosphate and polyphosphates, compound groups known to play an important role in sediment P recycling. The content of these compound groups was lowest in the reservoirs and may indicate a coupling between anthropogenic disturbances (i.e., impoundment) to a water system and the availability of labile P species in the sediment. A statistical study was also conducted to determine the accuracy and reliability of using P-31-NMR spectroscopy for quantification of sediment P forms. (c) 2006 Elsevier Ltd. All rights reserved.

Place, publisher, year, edition, pages
Uppsala Univ, Dept Phys & Analyt Chem, S-75124 Uppsala, Sweden. Univ So Denmark, Inst Biol, DK-5230 Odense M, Denmark. Uppsala Univ, Dept Organ & Biol Chem, S-75123 Uppsala, Sweden. Uppsala Univ, Dept Ecol & Evolut, EBC, S-75236 Uppsala, Sweden., 2006. Vol. 40, no 20, 3705-3712 p.
Keyword [en]
phosphorus species, P-31-NMR spectroscopy, reservoirs, oligotrophication, method validation, P-31-NMR accuracy
National Category
Natural Sciences
Research subject
Limnology
Identifiers
URN: urn:nbn:se:umu:diva-113616DOI: 10.1016/j.watres.2006.09.006ISI: 000242988600005PubMedID: 17070896OAI: oai:DiVA.org:umu-113616DiVA: diva2:886060
Available from: 2015-12-21 Created: 2015-12-21 Last updated: 2016-02-15

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CiteExportLink to record
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Cite
Citation style
  • apa
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  • modern-language-association-8th-edition
  • vancouver
  • Other style
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  • de-DE
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Output format
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