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Nitrogen inputs by irrigation is a missing link in the agricultural nitrogen cycle and related policies in Europe

2023-09Artigo científico Acesso aberto
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dc.contributor.authorSerra, João
dc.contributor.authorMarques-dos-Santos, Cláudia
dc.contributor.authorMarinheiro, Joana
dc.contributor.authorAguilera, Eduardo
dc.contributor.authorLassaletta, Luis
dc.contributor.authorSanz-Cobeña, Alberto
dc.contributor.authorGarnier, Josette
dc.contributor.authorBillen, Gilles
dc.contributor.authorVries, Wim de
dc.contributor.authorDalgaard, Tommy
dc.contributor.authorHutchings, Nicholas
dc.contributor.authorCameira, Maria do Rosário
dc.date.accessioned2024-07-09T15:50:17Z
dc.date.available2024-07-09T15:50:17Z
dc.date.issued2023-09
dc.description.abstractIrrigation, one of the 28 agri-environmental indicators defined in the European Common Agricultural Policy, is often neglected in agricultural nitrogen (N) budgets, while it can be a considerable source of N in irrigated agriculture. The annual N input from irrigation water sources (NIrrig) to cropping systems was quantified for Europe for 2000–2010 at a resolution of 10 × 10 km, accounting for crop-specific gross irrigation requirements (GIR) and surface- and ground- water nitrate concentration. GIR were computed for 20 crops, while spatially explicit nitrate concentration in ground- water was derived using a random forest model. We show that although GIR were relatively stable (46–60 km3 yr-1), the Nirrig in Europe increased over the 10-year period (184 to 259 Gg N yr-1), approximately 68 % of which occurred in the Mediterranean region. The main hotspots appeared in areas with both high irrigation requirements and high groundwater nitrate concentration, reaching up to averaged values of 150 kg N ha-1 yr1. These were mainly located in Mediterranean Europe (Greece, Portugal and Spain) and to a lesser extent in Northern Europe (The Netherlands, Sweden and Germany). By not including NIrrig, environmental and agricultural policies are underestimating the real extent of N pollution hotspots in European irrigated systems.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationSerra, João, et al. “Nitrogen Inputs by Irrigation Is a Missing Link in the Agricultural Nitrogen Cycle and Related Policies in Europe.” Science of The Total Environment, vol. 889, Sept. 2023, p. 164249pt_PT
dc.identifier.doi10.1016/j.scitotenv.2023.164249pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.5/31256
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relation.publisherversionwww.elsevier.com/locate/scitotenvpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/pt_PT
dc.subjectirrigation waterpt_PT
dc.subjectNitrate pollutionpt_PT
dc.subjectnutrient managementpt_PT
dc.subjectwater managementpt_PT
dc.subjectagrienvironmental indicatorpt_PT
dc.subjectwater balancept_PT
dc.titleNitrogen inputs by irrigation is a missing link in the agricultural nitrogen cycle and related policies in Europept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.startPage164249pt_PT
oaire.citation.titleElsevier Science of The Total Environmentpt_PT
oaire.citation.volume889pt_PT
person.familyNameMarques dos Santos Cordovil
person.familyNamedo Rosário da Conceição Cameira
person.givenNameCláudia
person.givenNameMaria
person.identifier.ciencia-idED10-B19E-CFFA
person.identifier.ciencia-idB418-5A61-8B8B
person.identifier.orcid0000-0001-8864-2611
person.identifier.orcid0000-0002-2186-5172
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication5be31b49-6107-4e76-80aa-82d03af4b30c
relation.isAuthorOfPublicationb0cf5ac6-ba25-4c12-96a6-d85a2f57fa0b
relation.isAuthorOfPublication.latestForDiscovery5be31b49-6107-4e76-80aa-82d03af4b30c

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