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Carbon and nitrogen cycling in the Scheldt estuary: the major players, long-term changes and an integrated view
Middelburg, J.J.; Andersson, M.; Boschker, E.; Brion, N.; Dehairs, F.; Dijkman, N.; Kromkamp, J.C.; Soetaert, K. (2011). Carbon and nitrogen cycling in the Scheldt estuary: the major players, long-term changes and an integrated view, in: Heip, C. et al. (Ed.) Aspects of coastal research in contribution to LOICZ in the Netherlands and Flanders (2002-2010). LOICZ Research & Studies, 38: pp. 148-154
In: Heip, C.; Laane, R. (Ed.) (2011). Aspects of coastal research in contribution to LOICZ in the Netherlands and Flanders (2002-2010). LOICZ Research & Studies, 38. Helmholtz-Zentrum Geesthacht: Geesthacht. 184 pp., more
In: LOICZ Research & Studies. LOICZ International Project Office: Den Burg. ISSN 1383-4304, more

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Keywords
    Carbon cycle; Estuarine environment; Long-term changes; Nitrogen cycle; Marine; Brackish water

Authors  Top 
  • Middelburg, J.J., more
  • Andersson, M., more
  • Boschker, E.
  • Brion, N., more

Abstract
    The Scheldt estuary is a highly heterotrophic, nutrient-rich, turbid, tidal estuary in a densely populated area (Belgium/The Netherlands). Here we present the results (1) on the long-term changes in nutrient loadings and transformations within the estuary and (2) on nitrogen cycling rate measurements obtained with isotopic tracers. Moreover, we have developed and applied novel techniques that allow direct linking of process rates to the identity and biomass of the organisms involved. Monitoring data and process studies have been used in numerical models to integrate the various biogeochemical cycles and to advance our understanding of the evolving estuarine filter function of the Scheldt estuary.

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