Vertical nitrate migration and denitrification zones in a regional recharge area (Lwówek region, Poland)

• Autorzy: Dragon Krzysztof , Górski Józef , Burghardt Diana

Identyfikatory

DOI

10.7306/gq.1647

• Języki publikacji: EN

Abstrakty

EN

We examine the influence of groundwater flow patterns and denitrification on nitrate migration in a regional recharge zone. It has been shown that nitrate contamination has a different behaviour in regions where groundwater is exploited (where deep percolation of nitrate takes place) than where natural gradients exist (with no deep aquifer zone contamination). Multicomponent chemical tracers and isotopic methods were used in the investigation. A contaminant plume was discovered in shallow parts of the aquifer which percolated into deeper parts of the flow system in those regions with a downwards gradient induced by groundwater withdrawal, where the influence of denitrification was limited. Local conditions leading to intense denitrification, i.e., local changes in geological conditions (low-permeability silt intercalations), were also documented. Therefore, vertical changes in groundwater chemistry should be examined to ensure groundwater resource management and protection, as these are extremely important in regional recharge zones with a downwards gradient.

Słowa kluczowe

EN

nitrate contamination; enitrification; groundwater flow pattern; nitrogen isotopes; sediment geochemistry

• Wydawca: Państwowy Instytut Geologiczny - Państwowy Instytut Badawczy
• Czasopismo: Geological Quarterly
• Rocznik: 2022
• Tom: Vol. 66, No. 2
• Strony: art. no. 15
• Opis fizyczny: Bibliogr. 32 poz., rys., tab., wykr.

Twórcy

autor

Dragon Krzysztof

• Adam Mickiewicz University in Poznań, Institute of Geology, Department of Hydrogeology and Water Protection, Bogumiła Krygowskiego 12, 61-680 Poznań, Poland

autor

Górski Józef

• Adam Mickiewicz University in Poznań, Institute of Geology, Department of Hydrogeology and Water Protection, Bogumiła Krygowskiego 12, 61-680 Poznań, Poland

autor

Burghardt Diana

• Technical University of Dresden, Institute of Groundwater Management, Department of Environmental Sciences, Bergstraße 66, 01069 Dresden, Germany

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).