Gaseous nitrogen as evidence for denitrification in groundwater

Vogel, J. C.; Talma, A.S.; Heaton, T.H.E.

doi:10.1016/0022-1694(81)90069-x

Cited by 214 publications

(138 citation statements)

References 16 publications

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“…The latter suggests that spatial distribution of denitrification within these aquifers was more heterogeneous. In agreement with the results of Vogel et al (1981) and Konrad (2007), a significant negative correlation between NO − 3 and excess N 2 in the whole data-set (R S =−0.37, Table 4) demonstrates that denitrification was an important factor for NO − 3 variability within all aquifers. (Blackmer and Bremner, 1978;Cho and Mills, 1979).…”

Section: Discussionsupporting

confidence: 90%

Groundwater N2O emission factors of nitrate-contaminated aquifers as derived from denitrification progress and N2O accumulation

et al. 2008

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Abstract.We investigated the dynamics of denitrification and nitrous oxide (N 2 O) accumulation in 4 nitrate (NO − 3 ) contaminated denitrifying sand and gravel aquifers of northern Germany (Fuhrberg, Sulingen, Thülsfelde and Göttingen) to quantify their potential N 2 O emission and to evaluate existing concepts of N 2 O emission factors. Excess N 2 -N 2 produced by denitrification -was determined by using the argon (Ar) concentration in groundwater as a natural inert tracer, assuming that this noble gas functions as a stable component and does not change during denitrification. Furthermore, initial NO

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Section: Discussionsupporting

confidence: 90%

Groundwater N2O emission factors of nitrate-contaminated aquifers as derived from denitrification progress and N2O accumulation

et al. 2008

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“…2a). These enrichment factors are consistent with values from denitrification studies that report ε15N ranging from -4.0 to -30.0‰ and ε18O ranging from -1.9 to -8.9‰ (Vogel et al, 1981;Mariotti et al, 1988;Böttcher et al, 1990;Spalding and Parrott, 1994;Mengis et al, 1999;Pauwels et al, 2000;Otero et al, 2009). The maximum NO3-N concentration in groundwater was measured in core sample DC15-23 (clay at 2 m bgl, 7 m hydraulically downgradient of DMW3).…”

Section: Values and Evolution Of Stable Isotopes Of Nitratesupporting

confidence: 89%

Sources and fate of nitrate in groundwater at agricultural operations overlying glacial sediments

Bourke¹,

Iwanyshyn²,

Köhn³

et al. 2018

Preprint

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for using a Monte Carlo approach. When denitrification could be quantified, we reconstructed the initial NO3-N concentration and NO3-N/Cl -ratio at the point of entry to the groundwater system. The addition of NO3 -to the local groundwater system from temporary manure piles and pens equalled or exceeded NO3 -additions due to leaching from earthen manure storages at these sites. Nitrate attenuation at both sites is attributed to a spatially 20 variable combination of mixing and denitrification, but is dominated by denitrification. On-site denitrification reduced agriculturally derived NO3 -concentrations by at least half and, in some wells, completely. These results indicate that infiltration to groundwater systems in glacial sediments where NO3 -can be naturally attenuated is likely preferable to off-farm export via runoff or drainage networks. The application of isotopes of nitrate to constrain a mixing model based on concentrations of Cl -and NO3 -, which can be routinely monitored in 25 groundwater, provides a relatively simple method to assess the sources and fate of agriculturally derived NO3 -in these settings.

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“…As an example of the application of the noble gas paleothennometer, we discuss a study conducted on the Stampriet artesian aquifer in Namibia. This confined sandstone aquifer is located in southeastern Namibia and has been extensively studied since the 1970s (e.g., Vogel et al 1981;Beaton et al 1983;Beaton 1984;Stute and Talma 1998). The noble gas temperature record was re-evaluated applying the CE-model and the inverse method developed by .…”

Section: Noble Gases In Lakes and Ground Watersmentioning

confidence: 99%

Noble Gases in Lakes and Ground Waters

Kipfer

Aeschbach–Hertig

Peeters

et al. 2002

Reviews in Mineralogy and Geochemistry

321

352

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Gaseous nitrogen as evidence for denitrification in groundwater

Cited by 214 publications

References 16 publications

Groundwater N<sub>2</sub>O emission factors of nitrate-contaminated aquifers as derived from denitrification progress and N<sub>2</sub>O accumulation

Groundwater N<sub>2</sub>O emission factors of nitrate-contaminated aquifers as derived from denitrification progress and N<sub>2</sub>O accumulation

Sources and fate of nitrate in groundwater at agricultural operations overlying glacial sediments

Noble Gases in Lakes and Ground Waters

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Gaseous nitrogen as evidence for denitrification in groundwater

Cited by 214 publications

References 16 publications

Groundwater N&lt;sub&gt;2&lt;/sub&gt;O emission factors of nitrate-contaminated aquifers as derived from denitrification progress and N&lt;sub&gt;2&lt;/sub&gt;O accumulation

Groundwater N&lt;sub&gt;2&lt;/sub&gt;O emission factors of nitrate-contaminated aquifers as derived from denitrification progress and N&lt;sub&gt;2&lt;/sub&gt;O accumulation

Sources and fate of nitrate in groundwater at agricultural operations overlying glacial sediments

Noble Gases in Lakes and Ground Waters

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Groundwater N<sub>2</sub>O emission factors of nitrate-contaminated aquifers as derived from denitrification progress and N<sub>2</sub>O accumulation

Groundwater N<sub>2</sub>O emission factors of nitrate-contaminated aquifers as derived from denitrification progress and N<sub>2</sub>O accumulation