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Modelling the carbon cycle in the turbidity maximum of the Seine estuary

par Even, S.;Ficht, A.;Thouvenin, B.;Garnier, Josette;Servais, Pierre ;LeHir, P.
Référence Verhandlungen - Internationale Vereinigung fÉur Theoretische und Angewandte Limnologie, 29, 5, page (2263-2266)
Publication Publié, 2006

Article révisé par les pairs

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Résumé :

Estuaries are characterised by long residence time (CIFFROY et al. 2003, ), accumulation of high amounts of suspended matter (SM) in the turbidity maximum zone. They receives the waters of the whole drainage basin before transfer to the coastal and oceanic domains. Thus the question of the role of the estuaries for transformation, production and exportation of nutrients and organic matter was regularly renewed (DAY et al. 1989, ) and, given the complexity of estuaries and contexts, remains largely discussed (ABRIL et al. 2002, ). Given the difference between dissolved and particulate species transport, particulate organic matter fate is essentially under concern (KNOX 1986, ). This question was studied in the framework of SEINE AVAL, research program dedicated to the Seine estuary. In order to determine the relative importance of the sources of POC in the estuary and to interpret the high organic carbon (POC) content of the suspended matter (SM) in the turbidity maximum (up to 5 %) (ABRIL et al. 2002, ), a modelling of the carbon cycle was undertaken, based on in situ and laboratory measurements.