La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Effects of salinity on NH(4)(+) adsorption capacity, nitrification, and denitrification in Danish estuarine sediments
Auteurs :	S. Rysgaard, Auteur ; P. Thastum, Auteur ; T. Dalsgaard, Auteur ; P. B. Christensen, Auteur ; N. P. Sloth, Auteur
Type de document :	Article
Dans :	Estuaries (22(1) MAR 1999)
Article en page(s) :	21-30
Résumé :	The regulatory effect of salinity on nitrogen dynamics in estuarine sediments was investigated in the Randers Fjord estuary, Denmark, using sediment slurries and intact sediment cores and applying (15)N-isotope techniques. Sediment was sampled at three representative stations varying in salinity, and ail experiments were run at 0 parts per thousand, 10 parts per thousand, 20 parts per thousand, and 30 parts per thousand. The sediment NH(4)(+) adsorption capacity decreased markedly at all stations when salinity was increased from 0 parts per thousand to

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