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Der Einfluss der Gezeiten auf die Verteilung von Naehrstoffen und Schwermetallen in Wattsedimenten des Elbe-Aestuars
Kerner, M.; Kausch, H.; Kersten, M. (1986). Der Einfluss der Gezeiten auf die Verteilung von Naehrstoffen und Schwermetallen in Wattsedimenten des Elbe-Aestuars. Arch. Hydrobiol., Suppl.bd. Unters. Elbe-Aestuars 75(1): 118-131
In: Archiv für Hydrobiologie. Supplementband. Untersuchungen des Elbe-Aestuars. Schweizerbart: Stuttgart. ISSN 0342-1066, more
Peer reviewed article  
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Keywords
    Chemical elements > Metals > Heavy metals
    Distribution > Sediment distribution
    Environmental effects > Tidal effects
    Nutrients (mineral)
    Fresh water
Authors  Top 
  • Kerner, M.
  • Kausch, H.
  • Kersten, M.
Abstract
    An investigation on plant nutrients and heavy metals in the interstitial water of freshwater tidal flat sediments along the Elbe was carried out by analyzing 2 cm subsamples from sediment cores 30 cm long. The hydrological dynamics of a high tidal flat were shown to produce a distinct biogeochemical depth zonation in the sediment, in which aerobic microbiological respiratory processes continue even in the deeper layers. This tidally mediated "oxidative pumping" results in subsequent withdrawal of assimilated inorganic N and a remobilization of Cd from highly contaminated sediments.
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