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Nitrous oxide emissions from estuarine intertidal sediments
Middelburg, J.J.; Klaver, G.; Nieuwenhuize, J.; Markusse, R.; Vlug, T.; Van der Nat, F.J.W.A. (1995). Nitrous oxide emissions from estuarine intertidal sediments. Hydrobiologia 311(1-3): 43-55
In: Hydrobiologia. Springer: The Hague. ISSN 0018-8158; e-ISSN 1573-5117, more
Peer reviewed article  

Also published as
  • Middelburg, J.J.; Klaver, G.; Nieuwenhuize, J.; Markusse, R.; Vlug, T.; Van der Nat, F.J.W.A. (1995). Nitrous oxide emissions from estuarine intertidal sediments, in: Heip, C.H.R. et al. (Ed.) Major biological processes in European tidal estuaries. Developments in Hydrobiology, 110: pp. 43-55, more

Available in  Authors | Dataset 
    VLIZ: Open Repository 274106 [ OMA ]

Keywords
    Ammonium compounds
    Aquatic organisms > Heterotrophic organisms > Decomposers
    Chemical compounds > Oxygen compounds > Oxides > Nitrogen compounds > Nitrous oxide
    Chemistry > Geochemistry > Biogeochemistry
    Chemistry > Geochemistry > Sediment chemistry
    Cycles > Chemical cycles > Geochemical cycle > Biogeochemical cycle > Nutrient cycles > Nitrogen cycle
    Environments > Aquatic environment > Marine environment > Intertidal environment
    Estuarine chemistry
    Eutrophication
    Measurement
    Organic matter > Carbon > Organic carbon
    Sedimentary structures > Mud flats
    Topographic features > Landforms > Coastal landforms > Tidal flats
    ANE, Netherlands, Westerschelde [Marine Regions]
    Marine; Brackish water

Authors  Top | Dataset 
  • Middelburg, J.J., more
  • Klaver, G.
  • Nieuwenhuize, J.
  • Markusse, R., more
  • Vlug, T.
  • Van der Nat, F.J.W.A.

Abstract
    From September 1990 through December 1991 nitrous oxide flux measurements were made at 9 intertidal mud flat sites in the Scheldt Estuary. Nitrous oxide release rates were highly variable both between sites and over time at any one site. Annual nitrous oxide fluxes vary from about 10 mmol N m–2 at the tidal fresh-water end-member site to almost zero at the most saline stations. Along the estuarine gradient, annual nitrous oxide fluxes are significantly correlated with sedimentary organic carbon and nitrogen concentrations, ammonium fluxes and annual nitrogen turn-over rates, that are estimated using mass-balance considerations. Nitrous oxide fluxes seem to respond linearly to an increasing nitrogen load, with one out of each 17 000 atoms nitrogen entering estuaries being emitted as nitrous oxide.

Dataset
  • Data set on pore-water composition and sediment-air fluxes in the Scheldt estuary at 9 stations with seasonal resolution. Intertidal sediments, more

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