Dynamics of nitrous oxide with depth in groundwater: Insights from ambient groundwater and laboratory incubation experiments (Hesbaye chalk aquifer, Belgium)
Aquifers under agricultural areas are considered to be an indirect source of nitrous oxide emission (N2O) to the atmosphere, which is the greenhouse gas (GHGs) characterized with the highest global warning potential and acts as a stratospheric ozone depletion agent. Previous investigations performed in the Cretaceous Hesbaye chalk aquifer in Eastern Belgium suggested that the dynamics of N2O in the aquifer is controlled by overlapping biochemical processes such as nitrification and denitrification. The current study aims to obtain better insight concerning the factors controlling the distribution of N2O concentration along a vertical dimension in the aquifer, and to capture and quantify the occurrence of nitrification and denitrification processes in the groundwater system. Low-flow groundwater sampling technique was undertaken at different depths in the aquifer to collect groundwater samples aiming at obtaining information about ambient aquifer hydrogeochemical conditions and their effect on the accumulation of GHGs. Afterwards, laboratory stable isotope experiments, using NO3- and NH4+ compounds labeled with heavy 15N isotope, were applied to quantify the rates of nitrification and denitrification processes. Ambient studies suggest that the occurrence of N transformation was related to denitrification while laboratory incubation experiments did not detect it. Such controversial results might be explained by the discrepancy between real aquifer conditions and lab design studies. Thus, additional in situ tracer experiments should be carried out in areas where natural groundwater fluxes do not flush the injected tracer too rapidly. In addition, it would be useful to conduct microbiological studies to obtain better insight into the nature of subsurface biofilm biotope.
Main Authors: | , , , , , , , , |
---|---|
Other Authors: | |
Format: | artículo biblioteca |
Language: | English |
Published: |
Elsevier
2021-08
|
Subjects: | Nitrification, Denitrification, Greenhouse gases, Groundwater, Low-flow sampling, N stable isotope analysis, |
Online Access: | http://hdl.handle.net/10261/265181 http://dx.doi.org/10.13039/501100000780 https://api.elsevier.com/content/abstract/scopus_id/85104151151 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
id |
dig-idaea-es-10261-265181 |
---|---|
record_format |
koha |
spelling |
dig-idaea-es-10261-2651812024-05-13T20:37:02Z Dynamics of nitrous oxide with depth in groundwater: Insights from ambient groundwater and laboratory incubation experiments (Hesbaye chalk aquifer, Belgium) Nikolenko, Olha Brouyѐre, Serge Goderniaux, Pascal Robert, Tanguy Orban, Philippe Borges, Alberto V Jurado, Anna Duvivier, Maxime Morana, Cedric European Commission Nitrification Denitrification Greenhouse gases Groundwater Low-flow sampling N stable isotope analysis Aquifers under agricultural areas are considered to be an indirect source of nitrous oxide emission (N2O) to the atmosphere, which is the greenhouse gas (GHGs) characterized with the highest global warning potential and acts as a stratospheric ozone depletion agent. Previous investigations performed in the Cretaceous Hesbaye chalk aquifer in Eastern Belgium suggested that the dynamics of N2O in the aquifer is controlled by overlapping biochemical processes such as nitrification and denitrification. The current study aims to obtain better insight concerning the factors controlling the distribution of N2O concentration along a vertical dimension in the aquifer, and to capture and quantify the occurrence of nitrification and denitrification processes in the groundwater system. Low-flow groundwater sampling technique was undertaken at different depths in the aquifer to collect groundwater samples aiming at obtaining information about ambient aquifer hydrogeochemical conditions and their effect on the accumulation of GHGs. Afterwards, laboratory stable isotope experiments, using NO3- and NH4+ compounds labeled with heavy 15N isotope, were applied to quantify the rates of nitrification and denitrification processes. Ambient studies suggest that the occurrence of N transformation was related to denitrification while laboratory incubation experiments did not detect it. Such controversial results might be explained by the discrepancy between real aquifer conditions and lab design studies. Thus, additional in situ tracer experiments should be carried out in areas where natural groundwater fluxes do not flush the injected tracer too rapidly. In addition, it would be useful to conduct microbiological studies to obtain better insight into the nature of subsurface biofilm biotope. This project has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 675120. Los Gatos Research OA-ICOS was funded by the Fonds National de la Rechecherche Scientifique (FNRS) (22547486). AVB is a Research Director at the FNRS. Peer reviewed 2022-03-24T10:35:32Z 2022-03-24T10:35:32Z 2021-08 artículo http://purl.org/coar/resource_type/c_6501 Journal of Contaminant Hydrology 241: 103797 (2021) 01697722 http://hdl.handle.net/10261/265181 10.1016/j.jconhyd.2021.103797 http://dx.doi.org/10.13039/501100000780 33813144 2-s2.0-85104151151 https://api.elsevier.com/content/abstract/scopus_id/85104151151 en #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/EC/H2020/675120. Journal of contaminant hydrology Postprint https://doi.org/10.1016/j.jconhyd.2021.103797 Sí open Elsevier |
institution |
IDAEA ES |
collection |
DSpace |
country |
España |
countrycode |
ES |
component |
Bibliográfico |
access |
En linea |
databasecode |
dig-idaea-es |
tag |
biblioteca |
region |
Europa del Sur |
libraryname |
Biblioteca del IDAEA España |
language |
English |
topic |
Nitrification Denitrification Greenhouse gases Groundwater Low-flow sampling N stable isotope analysis Nitrification Denitrification Greenhouse gases Groundwater Low-flow sampling N stable isotope analysis |
spellingShingle |
Nitrification Denitrification Greenhouse gases Groundwater Low-flow sampling N stable isotope analysis Nitrification Denitrification Greenhouse gases Groundwater Low-flow sampling N stable isotope analysis Nikolenko, Olha Brouyѐre, Serge Goderniaux, Pascal Robert, Tanguy Orban, Philippe Borges, Alberto V Jurado, Anna Duvivier, Maxime Morana, Cedric Dynamics of nitrous oxide with depth in groundwater: Insights from ambient groundwater and laboratory incubation experiments (Hesbaye chalk aquifer, Belgium) |
description |
Aquifers under agricultural areas are considered to be an indirect source of nitrous oxide emission (N2O) to the atmosphere, which is the greenhouse gas (GHGs) characterized with the highest global warning potential and acts as a stratospheric ozone depletion agent. Previous investigations performed in the Cretaceous Hesbaye chalk aquifer in Eastern Belgium suggested that the dynamics of N2O in the aquifer is controlled by overlapping biochemical processes such as nitrification and denitrification. The current study aims to obtain better insight concerning the factors controlling the distribution of N2O concentration along a vertical dimension in the aquifer, and to capture and quantify the occurrence of nitrification and denitrification processes in the groundwater system. Low-flow groundwater sampling technique was undertaken at different depths in the aquifer to collect groundwater samples aiming at obtaining information about ambient aquifer hydrogeochemical conditions and their effect on the accumulation of GHGs. Afterwards, laboratory stable isotope experiments, using NO3- and NH4+ compounds labeled with heavy 15N isotope, were applied to quantify the rates of nitrification and denitrification processes. Ambient studies suggest that the occurrence of N transformation was related to denitrification while laboratory incubation experiments did not detect it. Such controversial results might be explained by the discrepancy between real aquifer conditions and lab design studies. Thus, additional in situ tracer experiments should be carried out in areas where natural groundwater fluxes do not flush the injected tracer too rapidly. In addition, it would be useful to conduct microbiological studies to obtain better insight into the nature of subsurface biofilm biotope. |
author2 |
European Commission |
author_facet |
European Commission Nikolenko, Olha Brouyѐre, Serge Goderniaux, Pascal Robert, Tanguy Orban, Philippe Borges, Alberto V Jurado, Anna Duvivier, Maxime Morana, Cedric |
format |
artículo |
topic_facet |
Nitrification Denitrification Greenhouse gases Groundwater Low-flow sampling N stable isotope analysis |
author |
Nikolenko, Olha Brouyѐre, Serge Goderniaux, Pascal Robert, Tanguy Orban, Philippe Borges, Alberto V Jurado, Anna Duvivier, Maxime Morana, Cedric |
author_sort |
Nikolenko, Olha |
title |
Dynamics of nitrous oxide with depth in groundwater: Insights from ambient groundwater and laboratory incubation experiments (Hesbaye chalk aquifer, Belgium) |
title_short |
Dynamics of nitrous oxide with depth in groundwater: Insights from ambient groundwater and laboratory incubation experiments (Hesbaye chalk aquifer, Belgium) |
title_full |
Dynamics of nitrous oxide with depth in groundwater: Insights from ambient groundwater and laboratory incubation experiments (Hesbaye chalk aquifer, Belgium) |
title_fullStr |
Dynamics of nitrous oxide with depth in groundwater: Insights from ambient groundwater and laboratory incubation experiments (Hesbaye chalk aquifer, Belgium) |
title_full_unstemmed |
Dynamics of nitrous oxide with depth in groundwater: Insights from ambient groundwater and laboratory incubation experiments (Hesbaye chalk aquifer, Belgium) |
title_sort |
dynamics of nitrous oxide with depth in groundwater: insights from ambient groundwater and laboratory incubation experiments (hesbaye chalk aquifer, belgium) |
publisher |
Elsevier |
publishDate |
2021-08 |
url |
http://hdl.handle.net/10261/265181 http://dx.doi.org/10.13039/501100000780 https://api.elsevier.com/content/abstract/scopus_id/85104151151 |
work_keys_str_mv |
AT nikolenkoolha dynamicsofnitrousoxidewithdepthingroundwaterinsightsfromambientgroundwaterandlaboratoryincubationexperimentshesbayechalkaquiferbelgium AT brouyereserge dynamicsofnitrousoxidewithdepthingroundwaterinsightsfromambientgroundwaterandlaboratoryincubationexperimentshesbayechalkaquiferbelgium AT goderniauxpascal dynamicsofnitrousoxidewithdepthingroundwaterinsightsfromambientgroundwaterandlaboratoryincubationexperimentshesbayechalkaquiferbelgium AT roberttanguy dynamicsofnitrousoxidewithdepthingroundwaterinsightsfromambientgroundwaterandlaboratoryincubationexperimentshesbayechalkaquiferbelgium AT orbanphilippe dynamicsofnitrousoxidewithdepthingroundwaterinsightsfromambientgroundwaterandlaboratoryincubationexperimentshesbayechalkaquiferbelgium AT borgesalbertov dynamicsofnitrousoxidewithdepthingroundwaterinsightsfromambientgroundwaterandlaboratoryincubationexperimentshesbayechalkaquiferbelgium AT juradoanna dynamicsofnitrousoxidewithdepthingroundwaterinsightsfromambientgroundwaterandlaboratoryincubationexperimentshesbayechalkaquiferbelgium AT duviviermaxime dynamicsofnitrousoxidewithdepthingroundwaterinsightsfromambientgroundwaterandlaboratoryincubationexperimentshesbayechalkaquiferbelgium AT moranacedric dynamicsofnitrousoxidewithdepthingroundwaterinsightsfromambientgroundwaterandlaboratoryincubationexperimentshesbayechalkaquiferbelgium |
_version_ |
1802820322483765248 |