Stress coefficients for soil water balance combined with water stress indicators for irrigation scheduling of woody crops

Detalhes bibliográficos
Autor(a) principal: Ferreira, Maria Isabel
Data de Publicação: 2017
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.5/17701
Resumo: Concept Paper
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spelling Stress coefficients for soil water balance combined with water stress indicators for irrigation scheduling of woody cropsevapotranspirationwater statussoil water depletionmodellingMediterraneanConcept PaperThere are several causes for the failure of empirical models to estimate soil water depletion and to calculate irrigation depths, and the problem is particularly critical in tall, uneven, deficit irrigated (DI) crops in Mediterranean climates. Locally measured indicators that quantify water status are useful for addressing those causes and providing feed-back information for improving the adequacy of simple models. Because of their high aerodynamic resistance, the canopy conductance of woody crops is an important factor in determining evapotranspiration (ET), and accurate stress coefficient (Ks) values are needed to quantify the impact of stomatal closure on ET. A brief overview of basic general principles for irrigation scheduling is presented with emphasis on DI applications that require Ks modelling. The limitations of existing technology related to scheduling of woody crops are discussed, including the shortcomings of plant-based approaches. In relation to soil water deficit and/or predawn leaf water potential, several woody crop Ks functions are presented in a secondary analysis. Whenever the total and readily available water data were available, a simple Ks model was tested. The ultimate aim of this discussion is to illustrate the central concept: that a combination of simple ET models and water stress indicators is required for scheduling irrigation of deep-rooted woody cropsMDPIRepositório da Universidade de LisboaFerreira, Maria Isabel2019-04-05T10:16:56Z20172017-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.5/17701engHorticulturae 2017, 3, 38doi:10.3390/horticulturae3020038info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-03-06T14:47:22Zoai:www.repository.utl.pt:10400.5/17701Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:02:51.338974Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Stress coefficients for soil water balance combined with water stress indicators for irrigation scheduling of woody crops
title Stress coefficients for soil water balance combined with water stress indicators for irrigation scheduling of woody crops
spellingShingle Stress coefficients for soil water balance combined with water stress indicators for irrigation scheduling of woody crops
Ferreira, Maria Isabel
evapotranspiration
water status
soil water depletion
modelling
Mediterranean
title_short Stress coefficients for soil water balance combined with water stress indicators for irrigation scheduling of woody crops
title_full Stress coefficients for soil water balance combined with water stress indicators for irrigation scheduling of woody crops
title_fullStr Stress coefficients for soil water balance combined with water stress indicators for irrigation scheduling of woody crops
title_full_unstemmed Stress coefficients for soil water balance combined with water stress indicators for irrigation scheduling of woody crops
title_sort Stress coefficients for soil water balance combined with water stress indicators for irrigation scheduling of woody crops
author Ferreira, Maria Isabel
author_facet Ferreira, Maria Isabel
author_role author
dc.contributor.none.fl_str_mv Repositório da Universidade de Lisboa
dc.contributor.author.fl_str_mv Ferreira, Maria Isabel
dc.subject.por.fl_str_mv evapotranspiration
water status
soil water depletion
modelling
Mediterranean
topic evapotranspiration
water status
soil water depletion
modelling
Mediterranean
description Concept Paper
publishDate 2017
dc.date.none.fl_str_mv 2017
2017-01-01T00:00:00Z
2019-04-05T10:16:56Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.5/17701
url http://hdl.handle.net/10400.5/17701
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Horticulturae 2017, 3, 38
doi:10.3390/horticulturae3020038
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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