English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/49144
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

DC FieldValueLanguage
dc.contributor.authorCavero Campo, José-
dc.contributor.authorBarros, Rocío-
dc.contributor.authorSellam, F.-
dc.contributor.authorTopcu, S.-
dc.contributor.authorIsidoro, Daniel-
dc.contributor.authorLounis, A.-
dc.contributor.authorIbrikci, H.-
dc.contributor.authorCetin, M.-
dc.contributor.authorWilliams, Jimmy R.-
dc.contributor.authorAragüés Lafarga, Ramón-
dc.date.accessioned2012-05-03T09:31:11Z-
dc.date.available2012-05-03T09:31:11Z-
dc.date.issued2012-01-
dc.identifier.citationCavero J, Barros R, Sellam F, Topcu S, Isidoro D, Lounis A, Ibrikci H, Cetin M, Williams JR, Aragues R. APEX simulation of best irrigation and N management strategies for off-site N pollution control in three Mediterranean irrigated watersheds. Agricultural Water Management 103: 88-99 (2012)es_ES
dc.identifier.issn0378-3774-
dc.identifier.urihttp://hdl.handle.net/10261/49144-
dc.description42 Pags., 9 Tabls., 5 Figs. The definitive version is available at: http://www.sciencedirect.com/science/journal/03783774es_ES
dc.description.abstractOne of the main constraints of irrigated agriculture is off-siteNpollution due to export of nitrate in irrigation return flows (IRF). Models capable of simulating the growth of crops and the N loads in IRF as affected by irrigation and N fertilization may be valuable tools in watershed studies. The Agricultural Policy Environmental eXtender (APEX) model was used to assess bestmanagement practices for reducing off-siteN loads in the IRF of three Mediterranean irrigated watersheds (Akarsu in Turkey, La Violada in Spain and Sidi Rached in Algeria). The watersheds (ranging from 4013 to 10,971 ha) were monitored along three hydrological years to determine the volume of IRF and the NO3-N concentrations and loads in IRF. APEX was calibrated with the data of the first two years and validated with the last year's data. APEX adequately simulated crop evapotranspiration and the volume of IRF and N loads in the IRF (errors < 20%). Simulated annual values were in general more accurate than simulated monthly values. APEX predicted that improving irrigationmanagement (change of irrigation system and/or scheduling) will decrease N loads in IRF over current values by 45% (Akarsu), 40% (La Violada), and 8% (Sidi Rached). However, improved N fertilization only will reduce N loads in IRF by 17% (Akarsu) or below 5% (La Violada and Sidi Rached). Improving irrigationmanagement will increase IRF NO3-N concentrations by 19% in La Violada and will decrease or will remain the same in the other two watersheds. APEXsimulations identified the main soils (shallow and low water holding capacity soils) and crops (heavily fertilized or shallow-root crops) N polluters within the studied watersheds. Overall, APEX simulated that the improvement of irrigation performance was the bestmanagementstrategy to decrease off-siteNpollution while maintaining or increasing crop yields in the three studied Mediterranean watersheds.es_ES
dc.description.sponsorshipThis study was supported by the European Commission research project (INCO-CT-2005-015031).es_ES
dc.language.isoenges_ES
dc.publisherElsevieres_ES
dc.rightsopenAccesses_ES
dc.subjectModeles_ES
dc.subjectNitrogenes_ES
dc.subjectPollutiones_ES
dc.subjectIrrigationes_ES
dc.subjectFertilizeres_ES
dc.subjectWatershedes_ES
dc.titleAPEX simulation of best irrigation and N management strategies for off-site N pollution control in three Mediterranean irrigated watershedses_ES
dc.typeartículoes_ES
dc.identifier.doi10.1016/j.agwat.2011.10.021-
dc.description.peerreviewedPeer reviewedes_ES
dc.relation.publisherversionhttp://dx.doi.org/10.1016/j.agwat.2011.10.021es_ES
Appears in Collections:(EEAD) Artículos
Files in This Item:
File Description SizeFormat 
CaveroJ_AgricWatManag_2012.pdf9,81 MBAdobe PDFThumbnail
View/Open
Show simple item record
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.