Nitrogen in surface aquifer - Coastal lagoons systems: Analyzing the origin of eutrophication processes
dc.contributor.author
dc.date.accessioned
2023-02-15T12:05:30Z
dc.date.available
2023-02-15T12:05:30Z
dc.date.issued
2023-05-01
dc.identifier.issn
0048-9697
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dc.description.abstract
Coastal lagoons can act as sinks and sources of a wide range of substances, including nutrients, and pollutants. In these ecosystems, primary production is limited more by nitrogen than by phosphorus. For this reason, they are significantly vulnerable to nitrate pollution. In this study, a joined analysis of surface and ground water was conducted to determine the origin, occurrence and processes affecting nitrogen fate in a Mediterranean coastal aquifer-lagoon system. This included the analysis of water levels, as well as hydrochemical and isotopes data evolution for a 4-year period, which revealed two important insights of nitrogen cycling within the system. Firstly, we detected different origins for nitrate pollution (a mixture of sewage, manure and chemical fertilizers), as well as their nearly complete attenuation in the alluvial aquifer due to heterotrophic and autotrophic processes, favoured by the presence of organic matter and Fe-minerals in its sediments. Secondly, due to its rapid assimilation, inorganic nitrogen peaks in the lagoons were mainly detected after storm events. While nitrate peaks may be attributed to surface water runoff, ammonium peaks may be related to organic nutrient cycling. In contrast, we did not detect continuous and low N inputs, associated to groundwater flow. These results depict the need of a more integrated management strategy of these aquifer-lagoon systems
dc.description.sponsorship
The authors would like to thank Mònica Martinoy and Josep Pascual, who provided the water level, salinity measurements, and meteorological data for the La Pletera lagoons. Financial support was provided by the Life+ Program from the European Commission (Life Pletera; LIFE13NAT/ES/001001), the Ministerio de Economía y Competitividad (CGL 2016-76024-R AEI/FEDER/U), the Ministerio de Ciencia e Innovación (PID2021-123860OB-I00), and it was also carried out within the framework of the European Union's Horizon 2020 research and innovation programme under grant agreement N° 869296 (The PONDERFUL Project).
Open Access funding provided thanks to the CRUE-CSIC agreement with Elsevier
dc.format.mimetype
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
dc.relation
PID2021-123860OB-I00
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Reproducció digital del document publicat a: https://doi.org/10.1016/j.scitotenv.2023.161947
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Science of The Total Environment, 2023, vol. 871, art. núm.161947
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Articles publicats (D-CCAA)
dc.rights
Attribution-NonCommercial-NoDerivatives 4.0 International
dc.rights.uri
dc.subject
dc.title
Nitrogen in surface aquifer - Coastal lagoons systems: Analyzing the origin of eutrophication processes
dc.type
info:eu-repo/semantics/article
dc.rights.accessRights
info:eu-repo/semantics/openAccess
dc.relation.projectID
info:eu-repo/grantAgreement/EC/H2020/869296/EU/POND Ecosystems for Resilient FUture Landscapes in a changing climate/PONDERFUL
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2021-123860OB-I00/ES/ACUMULACION DE MPS EN HUMEDALES: MECANISMOS DE TRANSPORTE Y ZONIFICACIÓN DE LOS MICROPLASTICOS/
dc.type.version
info:eu-repo/semantics/publishedVersion
dc.identifier.doi
dc.identifier.idgrec
036685
dc.contributor.funder
dc.type.peerreviewed
peer-reviewed
dc.relation.FundingProgramme
dc.relation.ProjectAcronym
dc.identifier.eissn
1879-1026
dc.description.ods
6. Aigua neta i sanejament