Assessment of vegetation parameters in olive trees in the region of Alentejo. A comparison of direct and indirect methods

Detalhes bibliográficos
Autor(a) principal: Hausler, Melanie
Data de Publicação: 2011
Tipo de documento: Dissertação
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.5/4004
Resumo: Mestrado em Engenharia Agronómica - Instituto Superior de Agronomia
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spelling Assessment of vegetation parameters in olive trees in the region of Alentejo. A comparison of direct and indirect methodsolive treesolea europaealeaf area indexground covercrop water requirementsMestrado em Engenharia Agronómica - Instituto Superior de AgronomiaVegetation parameters, as the leaf area index (LAI) and the ground cover (GC) are commonly related to biosphere processes, being used in models to estimate yield and crop water requirements. Several direct and indirect methods have been developed in the past decades to determine the LAI. However, a simple approach to assess this parameter is still missing. In this study we tested the operability and precision of different methods to calculate the LAI of 6 and 20 year old olive trees (Arbequina and Cobrançosa), under irrigated and non-irrigated conditions in the region of Alentejo. The average LAI on a projected area basis was estimated to be 5.88 and 2.75 m2 m-2 at the irrigated and non-irrigated sites, respectively, corresponding to 1.01 and 1.05 m2 m-2 on a total area basis. Furthermore, a tool was introduced to simplify the decision making between the use of the LAI and the GC. The determination of the GC is much easier than the LAI in practical uses. The average GC was 5.7 m2 under irrigated and 18.0 m2 under non-irrigated conditions. A detailed comparison between direct and indirect methods is given and the future prospective of the decision making tool is discussed.ISA/UTLFerreira, Maria Isabel RibeiroRepositório da Universidade de LisboaHausler, Melanie2012-03-09T15:46:14Z20112011-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://hdl.handle.net/10400.5/4004engHausler, Melanie - Assessment of vegetation parameters in olive trees in the region of Alentejo. A comparison of direct and indirect methods. Lisboa: ISA, 2011info: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:RCAAP2023-03-06T14:35:01Zoai:www.repository.utl.pt:10400.5/4004Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T16:51:44.802456Repositório 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 Assessment of vegetation parameters in olive trees in the region of Alentejo. A comparison of direct and indirect methods
title Assessment of vegetation parameters in olive trees in the region of Alentejo. A comparison of direct and indirect methods
spellingShingle Assessment of vegetation parameters in olive trees in the region of Alentejo. A comparison of direct and indirect methods
Hausler, Melanie
olive trees
olea europaea
leaf area index
ground cover
crop water requirements
title_short Assessment of vegetation parameters in olive trees in the region of Alentejo. A comparison of direct and indirect methods
title_full Assessment of vegetation parameters in olive trees in the region of Alentejo. A comparison of direct and indirect methods
title_fullStr Assessment of vegetation parameters in olive trees in the region of Alentejo. A comparison of direct and indirect methods
title_full_unstemmed Assessment of vegetation parameters in olive trees in the region of Alentejo. A comparison of direct and indirect methods
title_sort Assessment of vegetation parameters in olive trees in the region of Alentejo. A comparison of direct and indirect methods
author Hausler, Melanie
author_facet Hausler, Melanie
author_role author
dc.contributor.none.fl_str_mv Ferreira, Maria Isabel Ribeiro
Repositório da Universidade de Lisboa
dc.contributor.author.fl_str_mv Hausler, Melanie
dc.subject.por.fl_str_mv olive trees
olea europaea
leaf area index
ground cover
crop water requirements
topic olive trees
olea europaea
leaf area index
ground cover
crop water requirements
description Mestrado em Engenharia Agronómica - Instituto Superior de Agronomia
publishDate 2011
dc.date.none.fl_str_mv 2011
2011-01-01T00:00:00Z
2012-03-09T15:46:14Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.5/4004
url http://hdl.handle.net/10400.5/4004
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Hausler, Melanie - Assessment of vegetation parameters in olive trees in the region of Alentejo. A comparison of direct and indirect methods. Lisboa: ISA, 2011
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 ISA/UTL
publisher.none.fl_str_mv ISA/UTL
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
_version_ 1799130993440849920

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