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A new Phosphorus Pa...
A new Phosphorus Paradigm for the Baltic Proper
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- Stigebrandt, Anders, 1942 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för geovetenskaper,Department of Earth Sciences,University of Gothenburg, Sweden
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- Rahm, Lars (author)
- Linköpings universitet,Tema vatten i natur och samhälle,Filosofiska fakulteten
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- Viktorsson, Lena, 1980 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för geovetenskaper,Department of Earth Sciences,University of Gothenburg, Sweden
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- Ödalen, Malin, 1980 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för geovetenskaper,Department of Earth Sciences,University of Gothenburg, Sweden
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- Hall, Per, 1954 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för kemi och molekylärbiologi,Department of Chemistry and Molecular Biology,University of Gothenburg, Sweden
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- Liljebladh, Bengt, 1959 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för geovetenskaper,Department of Earth Sciences,University of Gothenburg, Sweden
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(creator_code:org_t)
- 2013-10-11
- 2014
- English.
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In: Ambio. - : Springer Science and Business Media LLC. - 0044-7447 .- 1654-7209. ; 43:5, s. 634-643
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https://liu.diva-por... (primary) (Raw object)
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https://doi.org/10.1...
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Abstract
Subject headings
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- The external phosphorus (P) loading has been halved, but the P content in the water column and the area of anoxic bottoms in Baltic proper has increased during the last 30 years. This can be explained by a temporary internal source of dissolved inorganic phosphorus (DIP) that is turned on when the water above the bottom sediment becomes anoxic. A load-response model, explaining the evolution from 1980 to 2005, suggests that the average specific DIP flux from anoxic bottoms in the Baltic proper is about 2.3 g P m-2 year-1. This is commensurable with fluxes estimated in situ from anoxic bottoms in the open Baltic proper and from hydrographic data in the deep part of Bornholm Basin. Oxygenation of anoxic bottoms, natural or manmade, may quickly turn off the internal P source from anoxic bottoms. This new P-paradigm should have far-reaching implications for abatement of eutrophication in the Baltic proper.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Annan teknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Other Engineering and Technologies (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences (hsv//eng)
Keyword
- Oceanografi
- marin kemi
- geoengineering
- ekologisk ingenjörskonst
- phosphorus dynamics
- anoxic bottoms
- Internal load; Phosphorus; Baltic Sea; Mass balance model; Sediment; Eutrophication
Publication and Content Type
- ref (subject category)
- art (subject category)
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