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Denitrification rates in the bottom sediment of the Rzeszów Reservoir (southeastern Poland) were measured using the isotope pairing technique. At the stations studied rates were reported in the range of about 26 to 610 μmol N2 m-2 h-1, with the figures generally highest in summer. Simple and multiple regression analyses of relationships with selected abiotic factors gave rise to a model that revealed a statistically significant influence on rates of denitrification in the bottom sediment of the Rzeszów Reservoir due to concentrations of nitrate in overlying water, temperature, and the organic matter content in the sediment. The present study confirms that nitrate concentration in the overlying water is the main factor controlling sedimentary denitrification.
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Denitrification rates in the bottom sediment of the Rzeszów Reservoir (southeastern Poland) were measured using the isotope pairing technique. At the stations studied rates were reported in the range of about 26 to 610 μmol N2 m-2 h-1, with the figures generally highest in summer. Simple and multiple regression analyses of relationships with selected abiotic factors gave rise to a model that revealed a statistically significant influence on rates of denitrification in the bottom sediment of the Rzeszów Reservoir due to concentrations of nitrate in overlying water, temperature, and the organic matter content in the sediment. The present study confirms that nitrate concentration in the overlying water is the main factor controlling sedimentary denitrification.

Denitrification in the sediment of a eutrophic reservoir measured with the isotope pairing technique

Department of Chemistry and Environmental Engineering

Rzeszów University of Technology Faculty of Civil and Environmental Engineering

Oceanological and Hydrobiological Studies

Denitrification rates in the bottom sediment of the Rzeszów Reservoir (southeastern Poland) were measured using the isotope pairing technique. At the stations...

Denitrification in the sediment of a eutrophic reservoir measured with the isotope pairing technique

Online veröffentlicht: 02. Apr. 2009

Seitenbereich: 75 - 81

DOI: https://doi.org/10.2478/v10009-009-0005-9

Schlüsselwörter
denitrification, N, stable isotope, bottom sediment, Rzeszów Reservoir

This content is open access.

Denitrification in the sediment of a eutrophic reservoir measured with the isotope pairing technique

Online veröffentlicht: 02. Apr. 2009

Seitenbereich: 75 - 81

DOI: https://doi.org/10.2478/v10009-009-0005-9

Schlüsselwörterdenitrification, N, stable isotope, bottom sediment, Rzeszów Reservoir

This content is open access.

Schlüsselwörter
denitrification, N, stable isotope, bottom sediment, Rzeszów Reservoir