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Tidal exchange between a freshwater tidal marsh and an impacted estuary: the Scheldt estuary, Belgium

Van Damme, Stefan and Dehairs, Frank and Tackx, Micky and Beauchard, Olivier and Struyf, Eric and Gribsholt, Britta and Van Cleemput, Oswald and Meire, Patrick Tidal exchange between a freshwater tidal marsh and an impacted estuary: the Scheldt estuary, Belgium. (2009) Estuarine, Coastal and Shelf Science, 85 (2). 197-207. ISSN 0272-7714

(Document in English)

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Official URL: http://dx.doi.org/10.1016/j.ecss.2009.08.005


Tidal marsh exchange studies are relatively simple tools to investigate the interaction between tidal marshes and estuaries. They have mostly been confined to only a few elements and to saltwater or brackish systems. This study presents mass-balance results of an integrated one year campaign in a freshwater tidal marsh along the Scheldt estuary (Belgium), covering oxygen, nutrients (N, P and Si), carbon, chlorophyll, suspended matter, chloride and sulfate. The role of seepage from the marsh was also investigated. A ranking between the parameters revealed that oxygenation was the strongest effect of the marsh on the estuarine water. Particulate parameters showed overall import. Export of dissolved silica (DSi) was more important than exchange of any other nutrient form. Export of DSi and import of total dissolved nitrogen (DIN) nevertheless contributed about equally to the increase of the Si:N ratio in the seepage water. The marsh had a counteracting effect on the long term trend of nutrient ratios in the estuary.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com/science/article/pii/S0272771409003862
HAL Id:hal-00952542
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Other partners > Nederlands Instituut Voor Ecologie - NIOO (NETHERLANDS)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Other partners > Universiteit Gent - UGENT (BELGIUM)
Other partners > Universiteit Antwerpen - UA (BELGIUM)
Other partners > Vrije Universiteit Brussel - VUB (BELGIUM)
Laboratory name:
AWZ Flanders
Deposited On:27 Feb 2014 08:31

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