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Factors regulating the coastal nutrient filter in the Baltic Sea

Carstensen, Jacob ; Conley, Daniel J. LU ; Almroth-Rosell, Elin ; Asmala, Eero ; Bonsdorff, Erik ; Fleming-Lehtinen, Vivi ; Gustafsson, Bo G. ; Gustafsson, Camilla ; Heiskanen, Anna Stiina and Janas, Urzsula , et al. (2019) In Ambio
Abstract

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... (More)

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.

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publication status
published
subject
keywords
Biogeochemistry, Climate change, Coastal filter, Eutrophication, Hypoxia, Nutrient management
in
Ambio
publisher
Springer
external identifiers
  • pmid:31707582
  • scopus:85074829971
ISSN
0044-7447
DOI
10.1007/s13280-019-01282-y
language
English
LU publication?
yes
id
d03c0c8a-d76f-4575-950b-815950185be5
date added to LUP
2019-12-05 09:27:37
date last changed
2020-01-13 02:34:38
@article{d03c0c8a-d76f-4575-950b-815950185be5,
  abstract     = {<p>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.</p>},
  author       = {Carstensen, Jacob and Conley, Daniel J. and Almroth-Rosell, Elin and Asmala, Eero and Bonsdorff, Erik and Fleming-Lehtinen, Vivi and Gustafsson, Bo G. and Gustafsson, Camilla and Heiskanen, Anna Stiina and Janas, Urzsula and Norkko, Alf and Slomp, Caroline and Villnäs, Anna and Voss, Maren and Zilius, Mindaugas},
  issn         = {0044-7447},
  language     = {eng},
  publisher    = {Springer},
  series       = {Ambio},
  title        = {Factors regulating the coastal nutrient filter in the Baltic Sea},
  url          = {http://dx.doi.org/10.1007/s13280-019-01282-y},
  doi          = {10.1007/s13280-019-01282-y},
  year         = {2019},
}