The use of numerical modelling to assess soil water dynamics in subsurface irrigation

Knowledge of soil water dynamics is essential for establishing appropriate methods of irrigation management. Waterdynamics in unsaturated soils is a complex process that can be explained by the Richards equation. As this is a non-linear differentialequation, there is no analytical solution, but requ...

Descripción completa

Detalles Bibliográficos
Autores: Oliveira Rocha, Mayara, dos Santos Teixeira, Adunias, Chagas da Silva Filho, Francisco, Sonsol Gondim, Rubens, Bernard Oliveira de Sousa, Alan
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:Brasil
Institución:Universidade Federal do Ceará (UFC)
Repositorio:Revista ciência agronômica (Online)
Idioma:inglés
OAI Identifier:oai:periodicos.ufc:article/91658
Acceso en línea:http://periodicos.ufc.br/revistacienciaagronomica/article/view/91658
Access Level:acceso abierto
Palabra clave:Drip irrigation. Water use effi ciency. Irrigation depth. Simulation.
id BR_2c6bb752c615daf7dafefd14e0c2dfcb
oai_identifier_str oai:periodicos.ufc:article/91658
network_acronym_str BR
network_name_str Brasil
repository_id_str
spelling The use of numerical modelling to assess soil water dynamics in subsurface irrigationDrip irrigation. Water use effi ciency. Irrigation depth. Simulation.Knowledge of soil water dynamics is essential for establishing appropriate methods of irrigation management. Waterdynamics in unsaturated soils is a complex process that can be explained by the Richards equation. As this is a non-linear differentialequation, there is no analytical solution, but requires the use of the fi nite element method, for example, to obtain solutions, wheresimulations using numerical modelling make it p ossible to predict the the fl ow of water from the soil. As such, the aim of this studywas to evaluate a 2D numerical model in simulating wate r distribution and wet bulb formation resulting from a subsurface irrigationsystem, in addition to validating the generated model. The Pearson correlation coeffi cient (r), the coeffi cient of deter mination (R2) andthe root-mean-square error (RMSE) were calculated. For each treatment, both during and after irrigation, the model showed a smallrelative error, high values for R2and a positive correlation with the fi eld data. It was concluded that the model is applicable to the designand management of subsurface irrigation systems, varying the installation depth of the drip tube, the spacing between emitters and thesoil moisture, giving good results for the various simulated scenarios.Revista Ciência Agronômica2023-07-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://periodicos.ufc.br/revistacienciaagronomica/article/view/91658Revista Ciência Agronômica; v. 54 (2023); 1-131806-66900045-6888reponame:Revista ciência agronômica (Online)instname:Universidade Federal do Ceará (UFC)instacron:UFCenghttp://periodicos.ufc.br/revistacienciaagronomica/article/view/91658/249477Copyright (c) 2023 Revista Ciência Agronômicainfo:eu-repo/semantics/openAccessOliveira Rocha, Mayarados Santos Teixeira, AduniasChagas da Silva Filho, FranciscoSonsol Gondim, RubensBernard Oliveira de Sousa, Alan2023-07-13T16:31:58Zoai:periodicos.ufc:article/91658Revistahttps://periodicos.ufc.br/revistacienciaagronomicaPUBhttps://periodicos.ufc.br/revistacienciaagronomica/oai||alekdutra@ufc.br|| ccarev@ufc.br1806-66900045-6888opendoar:2023-07-13T16:31:58Revista ciência agronômica (Online) - Universidade Federal do Ceará (UFC)false
dc.title.none.fl_str_mv The use of numerical modelling to assess soil water dynamics in subsurface irrigation
title The use of numerical modelling to assess soil water dynamics in subsurface irrigation
spellingShingle The use of numerical modelling to assess soil water dynamics in subsurface irrigation
Oliveira Rocha, Mayara
Drip irrigation. Water use effi ciency. Irrigation depth. Simulation.
title_short The use of numerical modelling to assess soil water dynamics in subsurface irrigation
title_full The use of numerical modelling to assess soil water dynamics in subsurface irrigation
title_fullStr The use of numerical modelling to assess soil water dynamics in subsurface irrigation
title_full_unstemmed The use of numerical modelling to assess soil water dynamics in subsurface irrigation
title_sort The use of numerical modelling to assess soil water dynamics in subsurface irrigation
dc.creator.none.fl_str_mv Oliveira Rocha, Mayara
dos Santos Teixeira, Adunias
Chagas da Silva Filho, Francisco
Sonsol Gondim, Rubens
Bernard Oliveira de Sousa, Alan
author Oliveira Rocha, Mayara
author_facet Oliveira Rocha, Mayara
dos Santos Teixeira, Adunias
Chagas da Silva Filho, Francisco
Sonsol Gondim, Rubens
Bernard Oliveira de Sousa, Alan
author_role author
author2 dos Santos Teixeira, Adunias
Chagas da Silva Filho, Francisco
Sonsol Gondim, Rubens
Bernard Oliveira de Sousa, Alan
author2_role author
author
author
author
dc.subject.por.fl_str_mv Drip irrigation. Water use effi ciency. Irrigation depth. Simulation.
topic Drip irrigation. Water use effi ciency. Irrigation depth. Simulation.
description Knowledge of soil water dynamics is essential for establishing appropriate methods of irrigation management. Waterdynamics in unsaturated soils is a complex process that can be explained by the Richards equation. As this is a non-linear differentialequation, there is no analytical solution, but requires the use of the fi nite element method, for example, to obtain solutions, wheresimulations using numerical modelling make it p ossible to predict the the fl ow of water from the soil. As such, the aim of this studywas to evaluate a 2D numerical model in simulating wate r distribution and wet bulb formation resulting from a subsurface irrigationsystem, in addition to validating the generated model. The Pearson correlation coeffi cient (r), the coeffi cient of deter mination (R2) andthe root-mean-square error (RMSE) were calculated. For each treatment, both during and after irrigation, the model showed a smallrelative error, high values for R2and a positive correlation with the fi eld data. It was concluded that the model is applicable to the designand management of subsurface irrigation systems, varying the installation depth of the drip tube, the spacing between emitters and thesoil moisture, giving good results for the various simulated scenarios.
publishDate 2023
dc.date.none.fl_str_mv 2023-07-06
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://periodicos.ufc.br/revistacienciaagronomica/article/view/91658
url http://periodicos.ufc.br/revistacienciaagronomica/article/view/91658
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv http://periodicos.ufc.br/revistacienciaagronomica/article/view/91658/249477
dc.rights.driver.fl_str_mv Copyright (c) 2023 Revista Ciência Agronômica
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2023 Revista Ciência Agronômica
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Revista Ciência Agronômica
publisher.none.fl_str_mv Revista Ciência Agronômica
dc.source.none.fl_str_mv Revista Ciência Agronômica; v. 54 (2023); 1-13
1806-6690
0045-6888
reponame:Revista ciência agronômica (Online)
instname:Universidade Federal do Ceará (UFC)
instacron:UFC
instname_str Universidade Federal do Ceará (UFC)
instacron_str UFC
institution UFC
reponame_str Revista ciência agronômica (Online)
collection Revista ciência agronômica (Online)
repository.name.fl_str_mv Revista ciência agronômica (Online) - Universidade Federal do Ceará (UFC)
repository.mail.fl_str_mv ||alekdutra@ufc.br|| ccarev@ufc.br
_version_ 1853676461333938176
score 15,300719

Similares en LA Referencia