SwePub
Sök i SwePub databas

  Utökad sökning

Träfflista för sökning "WFRF:(Hasager C. C.) "

Sökning: WFRF:(Hasager C. C.)

  • Resultat 1-3 av 3
Sortera/gruppera träfflistan
   
NumreringReferensOmslagsbildHitta
1.
  • Spokes, L., et al. (författare)
  • MEAD: An interdisciplinary study of the marine effects of atmospheric deposition in the Kattegat
  • 2006
  • Ingår i: Environmental Pollution. - : Elsevier BV. - 0269-7491. ; 140:3, s. 453-462
  • Tidskriftsartikel (refereegranskat)abstract
    • This paper summarises the results of the EU funded MEAD project, an interdisciplinary study of the effects of atmospheric nitrogen deposition on the Kattegat Sea between Denmark and Sweden. The study considers emissions of reactive nitrogen gases, their transport, transformations, deposition and effects on algal growth together with management options to reduce these effects. We conclude that atmospheric deposition is an important source of fixed nitrogen to the region particularly in summer, when nitrogen is the limiting nutrient for phytoplankton growth, and contributes to the overall eutrophication pressures in this region. However, we also conclude that it is unlikely that atmospheric deposition can, on its own, induce algal blooms in this region. A reduction of atmospheric nitrogen loads to this region will require strategies to reduce emissions of ammonia from local agriculture and Europe wide reductions in nitrous oxide emissions. (c) 2005 Elsevier Ltd. All rights reserved.
  •  
2.
  •  
3.
  • Carstensen, J., et al. (författare)
  • Summer algal blooms in a coastal ecosystem: the role of atmospheric deposition versus entrainment fluxes
  • 2005
  • Ingår i: Estuarine Coastal and Shelf Science. - : Elsevier BV. - 0272-7714. ; 62:4, s. 595-608
  • Tidskriftsartikel (refereegranskat)abstract
    • The nitrogen inputs from atmospheric deposition and bottom water entrainment to the surface layer were modelled in the summer period (May-September) over a 11-year period (1989-1999) and compared to investigate the significance of these fluxes for generating blooms in the Kattegat. In the summer periods the average atmospheric deposition was 2.81 mg N m(-2) d(-1) compared to average entrainment fluxes of 5.42 mg N m(-2) d(-1), 1.21 mg N m(-2) d(-1) and 1.15 mg N m(-2) d(-1) for the northern, central and southern part of the Kattegat, respectively. Atmospheric nitrogen deposition alone could not sustain biomass increases associated with observed blooms and entrainment fluxes dominated the high nitrogen inputs to the surface layer. The potential for a bloom through growth was typically obtained after several days of high nitrogen inputs from entrainment in the frontal area of the northern Kattegat and to some extent from atmospheric deposition. The modelled nitrogen input in this area could account directly for 30% of the observed blooms in the Northern sub-basin, and through advective transport 24% and 19% of the observed blooms in the central and southern Kattegat. The direct nitrogen inputs through atmospheric deposition and entrainment to the central and southern sub-basins were small and could not be linked to any bloom observation. (C) 2004 Elsevier Ltd. All rights reserved.
  •  
Skapa referenser, mejla, bekava och länka
  • Resultat 1-3 av 3

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy