Numerical modeling of actual evapotranspiration of a coffee crop

Detalhes bibliográficos
Autor(a) principal: Cesanelli,Andrés
Data de Publicação: 2011
Outros Autores: Guarracino,Luis
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Scientia Agrícola (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000400001
Resumo: The evapotranspiration estimation has great importance to crop productivity and agricultural water management. In this study, evapotranspiration is analyzed in a coffee (Coffea arabica L.) crop located in Piracicaba, state of São Paulo (Brazil) using a numerical method based on the simulation of both water flow and crop activity in the unsaturated zone of the soil. Actual evapotranspiration is estimated from potential evapotranspiration using water stress functions, meteorological data, soil hydraulic parameters, crop coefficients and leaf area index values. Crop transpiration and soil evaporation are individually quantified improving the analysis of the evapotranspiration process. The numerical procedure can predict periods of crop water stress and becomes an attractive tool to analyze the effect of non-standard conditions on coffee crops and to design efficient irrigation schedules. Simulated evapotranspiration values are in good agreement with experimental values determined in the study site.
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spelling Numerical modeling of actual evapotranspiration of a coffee cropsoil evaporationcrop transpirationunsaturated zonemathematical modelsThe evapotranspiration estimation has great importance to crop productivity and agricultural water management. In this study, evapotranspiration is analyzed in a coffee (Coffea arabica L.) crop located in Piracicaba, state of São Paulo (Brazil) using a numerical method based on the simulation of both water flow and crop activity in the unsaturated zone of the soil. Actual evapotranspiration is estimated from potential evapotranspiration using water stress functions, meteorological data, soil hydraulic parameters, crop coefficients and leaf area index values. Crop transpiration and soil evaporation are individually quantified improving the analysis of the evapotranspiration process. The numerical procedure can predict periods of crop water stress and becomes an attractive tool to analyze the effect of non-standard conditions on coffee crops and to design efficient irrigation schedules. Simulated evapotranspiration values are in good agreement with experimental values determined in the study site.Escola Superior de Agricultura "Luiz de Queiroz"2011-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000400001Scientia Agricola v.68 n.4 2011reponame:Scientia Agrícola (Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/S0103-90162011000400001info:eu-repo/semantics/openAccessCesanelli,AndrésGuarracino,Luiseng2011-09-22T00:00:00Zoai:scielo:S0103-90162011000400001Revistahttp://revistas.usp.br/sa/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpscientia@usp.br||alleoni@usp.br1678-992X0103-9016opendoar:2011-09-22T00:00Scientia Agrícola (Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Numerical modeling of actual evapotranspiration of a coffee crop
title Numerical modeling of actual evapotranspiration of a coffee crop
spellingShingle Numerical modeling of actual evapotranspiration of a coffee crop
Cesanelli,Andrés
soil evaporation
crop transpiration
unsaturated zone
mathematical models
title_short Numerical modeling of actual evapotranspiration of a coffee crop
title_full Numerical modeling of actual evapotranspiration of a coffee crop
title_fullStr Numerical modeling of actual evapotranspiration of a coffee crop
title_full_unstemmed Numerical modeling of actual evapotranspiration of a coffee crop
title_sort Numerical modeling of actual evapotranspiration of a coffee crop
author Cesanelli,Andrés
author_facet Cesanelli,Andrés
Guarracino,Luis
author_role author
author2 Guarracino,Luis
author2_role author
dc.contributor.author.fl_str_mv Cesanelli,Andrés
Guarracino,Luis
dc.subject.por.fl_str_mv soil evaporation
crop transpiration
unsaturated zone
mathematical models
topic soil evaporation
crop transpiration
unsaturated zone
mathematical models
description The evapotranspiration estimation has great importance to crop productivity and agricultural water management. In this study, evapotranspiration is analyzed in a coffee (Coffea arabica L.) crop located in Piracicaba, state of São Paulo (Brazil) using a numerical method based on the simulation of both water flow and crop activity in the unsaturated zone of the soil. Actual evapotranspiration is estimated from potential evapotranspiration using water stress functions, meteorological data, soil hydraulic parameters, crop coefficients and leaf area index values. Crop transpiration and soil evaporation are individually quantified improving the analysis of the evapotranspiration process. The numerical procedure can predict periods of crop water stress and becomes an attractive tool to analyze the effect of non-standard conditions on coffee crops and to design efficient irrigation schedules. Simulated evapotranspiration values are in good agreement with experimental values determined in the study site.
publishDate 2011
dc.date.none.fl_str_mv 2011-08-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000400001
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000400001
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-90162011000400001
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Escola Superior de Agricultura "Luiz de Queiroz"
publisher.none.fl_str_mv Escola Superior de Agricultura "Luiz de Queiroz"
dc.source.none.fl_str_mv Scientia Agricola v.68 n.4 2011
reponame:Scientia Agrícola (Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Scientia Agrícola (Online)
collection Scientia Agrícola (Online)
repository.name.fl_str_mv Scientia Agrícola (Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv scientia@usp.br||alleoni@usp.br
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