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Factors regulating the coastal nutrient filter in the Baltic Sea
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Number of Authors: 152019 (English)In: Ambio, ISSN 0044-7447, E-ISSN 1654-7209Article in journal (Refereed) Epub ahead of print
Abstract [en]

The coastal zone of the Baltic Sea is diverse with strong regional differences in the physico-chemical setting. This diversity is also reflected in the importance of different biogeochemical processes altering nutrient and organic matter fluxes on the passage from land to sea. This review investigates the most important processes for removal of nutrients and organic matter, and the factors that regulate the efficiency of the coastal filter. Nitrogen removal through denitrification is high in lagoons receiving large inputs of nitrate and organic matter. Phosphorus burial is high in archipelagos with substantial sedimentation, but the stability of different burial forms varies across the Baltic Sea. Organic matter processes are tightly linked to the nitrogen and phosphorus cycles. Moreover, these processes are strongly modulated depending on composition of vegetation and fauna. Managing coastal ecosystems to improve the effectiveness of the coastal filter can reduce eutrophication in the open Baltic Sea.

Place, publisher, year, edition, pages
2019.
Keywords [en]
Biogeochemistry, Climate change, Coastal filter, Eutrophication, Hypoxia, Nutrient management
National Category
Earth and Related Environmental Sciences
Identifiers
URN: urn:nbn:se:su:diva-176539DOI: 10.1007/s13280-019-01282-yISI: 000495298800002PubMedID: 31707582OAI: oai:DiVA.org:su-176539DiVA, id: diva2:1380260
Available from: 2019-12-18 Created: 2019-12-18 Last updated: 2020-01-23

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Carstensen, JacobGustafsson, Bo G.Norkko, Alf
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Stockholm University Baltic Sea Centre
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