Abstract
Emission of nitrous oxide and methane in riparian areas with alternating water levels of two strongly eutrophic (polytrophic) kettle holes (“Breites Fenn”, “Krummer Pfuhl”) and one less eutrophic kettle hole (“Klarer Pfuhl”) on agriculturally used sites in Northeast-Germany have been measured and compared. All investigated kettle holes have been identified as significant sources of N2O and, particularly, CH4. High water level led to slightly decreased N2O-emissions as well as to drastically enhanced CH4-emissions, and vice versa. In connection with the actual vegetation, eutrophication led to an increase of the two climate-relevant trace gases. In course of the year, relations between available N compounds in the soil and trace gas emissions have been superimposed by environmental factors of the site (water level, vegetation, temperature). More detailed studies of the influence of vegetation and C dynamics on trace gas emission rates in riparian areas are necessary. In addition, reliable quantitative data are needed to estimate trace gas fluxes on regional scale.
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Merbach, W., Kalettka, T., Rudat, C., Augustin, J. (2002). Trace gas emissions from riparian areas of small eutrophic inland waters in Northeast-Germany. In: Broll, G., Merbach, W., Pfeiffer, EM. (eds) Wetlands in Central Europe. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-05054-5_13
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DOI: https://doi.org/10.1007/978-3-662-05054-5_13
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