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Assessment of LEACHN and a simple compartmental model to simulate nitrogendynamics in citrus orchards

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Assessment of LEACHN and a simple compartmental model to simulate nitrogendynamics in citrus orchards

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dc.contributor.author Lidón Cerezuela, Antonio Luis es_ES
dc.contributor.author Ramos Mompó, Carlos es_ES
dc.contributor.author Ginestar Peiro, Damián es_ES
dc.contributor.author Contreras Espinosa, Wilson Alberto es_ES
dc.date.accessioned 2014-03-26T13:12:00Z
dc.date.issued 2013-04
dc.identifier.issn 0378-3774
dc.identifier.uri http://hdl.handle.net/10251/36667
dc.description.abstract A simple compartmental model using a tipping bucket approach for the water dynamics coupled with a nitrogen¿carbon transformations model has been adapted to simulate the soil nitrogen and water balance in mature orange groves on a daily step. This model has been compared with the more mechanistic LEACHN model (the N module of the LEACHM model), which uses Richards¿ equation to simulate soil water movement in unsaturated conditions, the convection¿dispersion equation for solute transport, and that, in addition to including evapotranspiration, N transformations and N plant uptake as in the compartmental model, it also considers gaseous losses due to denitrification and ammonia volatilization, that are not considered in the compartmental model. This comparison was made using data from a three-year experiment in a citrus orchard with two nitrogen fertilization rates. After calibration using the first year data, a reasonable match between simulated and measured values in both models was observed for soil water storage in the whole profile for the validation period (2nd and 3rd year), but the agreement was not so good for the soil mineral nitrogen content. In spite of the differences in the nature and in the complexity of the two models, the soil water dynamics and drainage were well simulated during the whole period by both models. However, the LEACHN model predicted nitrate leaching better than the compartmental model, probably because it considers the nitrogen cycle in a more detailed way. This work is the first calibration and performance evaluation of the LEACHN model for citrus in the Mediterranean area and the results obtained in this study indicate that this model can be a valid tool to evaluate the effects of irrigation and N management on nitrate leaching. The compartmental model has a lower data requirement and calibration is less complex than the LEACHN model and, therefore, may be more appealing for advisory N management purposes. es_ES
dc.description.sponsorship This work has been partially supported by the Spanish Ministerio de Ciencia e Innovacion under projects, MTM2007-64477-AR07 and INIA-RTA 2011-00136-C04-01. en_EN
dc.language Inglés es_ES
dc.publisher Elsevier Masson es_ES
dc.relation.ispartof Agricultural Water Management es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Soil nitrogen es_ES
dc.subject nitrate leaching es_ES
dc.subject soil water es_ES
dc.subject fertilization es_ES
dc.subject citrus es_ES
dc.subject LEACHM es_ES
dc.subject.classification EDAFOLOGIA Y QUIMICA AGRICOLA es_ES
dc.subject.classification MATEMATICA APLICADA es_ES
dc.title Assessment of LEACHN and a simple compartmental model to simulate nitrogendynamics in citrus orchards es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.agwat.2013.01.008
dc.relation.projectID info:eu-repo/grantAgreement/MEC//MTM2007-64477/ES/ANALISIS MATRICIAL, MATRICES NO NEGATIVAS Y APLICACIONES/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/MICINN//RTA2011-00136-C04-01/ES/Integración de medidas de suelo, planta y modelos de simulación para el manejo eficiente del nitrógeno en los cultivos hortícolas/ es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Química - Departament de Química es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Matemática Aplicada - Departament de Matemàtica Aplicada es_ES
dc.description.bibliographicCitation Lidón Cerezuela, AL.; Ramos Mompo, C.; Ginestar Peiro, D.; Contreras Espinosa, WA. (2013). Assessment of LEACHN and a simple compartmental model to simulate nitrogendynamics in citrus orchards. Agricultural Water Management. 121:42-53. doi:10.1016/j.agwat.2013.01.008 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://dx.doi.org/10.1016/j.agwat.2013.01.008 es_ES
dc.description.upvformatpinicio 42 es_ES
dc.description.upvformatpfin 53 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 121 es_ES
dc.relation.senia 233257


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