Soil penetration resistance analysis by multivariate and geostatistical methods

Detalhes bibliográficos
Autor(a) principal: Medina,Cecilia
Data de Publicação: 2012
Outros Autores: Camacho-Tamayo,Jesús H., Cortés,César A.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Engenharia Agrícola
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162012000100010
Resumo: The penetration resistance (PR) is a soil attribute that allows identifies areas with restrictions due to compaction, which results in mechanical impedance for root growth and reduced crop yield. The aim of this study was to characterize the PR of an agricultural soil by geostatistical and multivariate analysis. Sampling was done randomly in 90 points up to 0.60 m depth. It was determined spatial distribution models of PR, and defined areas with mechanical impedance for roots growth. The PR showed a random distribution to 0.55 and 0.60 m depth. PR in other depths analyzed showed spatial dependence, with adjustments to exponential and spherical models. The cluster analysis that considered sampling points allowed establishing areas with compaction problem identified in the maps by kriging interpolation. The analysis with main components identified three soil layers, where the middle layer showed the highest values of PR.
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spelling Soil penetration resistance analysis by multivariate and geostatistical methodscompactioncluster analysisprincipal componentsAndisolThe penetration resistance (PR) is a soil attribute that allows identifies areas with restrictions due to compaction, which results in mechanical impedance for root growth and reduced crop yield. The aim of this study was to characterize the PR of an agricultural soil by geostatistical and multivariate analysis. Sampling was done randomly in 90 points up to 0.60 m depth. It was determined spatial distribution models of PR, and defined areas with mechanical impedance for roots growth. The PR showed a random distribution to 0.55 and 0.60 m depth. PR in other depths analyzed showed spatial dependence, with adjustments to exponential and spherical models. The cluster analysis that considered sampling points allowed establishing areas with compaction problem identified in the maps by kriging interpolation. The analysis with main components identified three soil layers, where the middle layer showed the highest values of PR.Associação Brasileira de Engenharia Agrícola2012-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162012000100010Engenharia Agrícola v.32 n.1 2012reponame:Engenharia Agrícolainstname:Associação Brasileira de Engenharia Agrícola (SBEA)instacron:SBEA10.1590/S0100-69162012000100010info:eu-repo/semantics/openAccessMedina,CeciliaCamacho-Tamayo,Jesús H.Cortés,César A.eng2012-04-18T00:00:00Zoai:scielo:S0100-69162012000100010Revistahttp://www.engenhariaagricola.org.br/ORGhttps://old.scielo.br/oai/scielo-oai.phprevistasbea@sbea.org.br||sbea@sbea.org.br1809-44300100-6916opendoar:2012-04-18T00:00Engenharia Agrícola - Associação Brasileira de Engenharia Agrícola (SBEA)false
dc.title.none.fl_str_mv Soil penetration resistance analysis by multivariate and geostatistical methods
title Soil penetration resistance analysis by multivariate and geostatistical methods
spellingShingle Soil penetration resistance analysis by multivariate and geostatistical methods
Medina,Cecilia
compaction
cluster analysis
principal components
Andisol
title_short Soil penetration resistance analysis by multivariate and geostatistical methods
title_full Soil penetration resistance analysis by multivariate and geostatistical methods
title_fullStr Soil penetration resistance analysis by multivariate and geostatistical methods
title_full_unstemmed Soil penetration resistance analysis by multivariate and geostatistical methods
title_sort Soil penetration resistance analysis by multivariate and geostatistical methods
author Medina,Cecilia
author_facet Medina,Cecilia
Camacho-Tamayo,Jesús H.
Cortés,César A.
author_role author
author2 Camacho-Tamayo,Jesús H.
Cortés,César A.
author2_role author
author
dc.contributor.author.fl_str_mv Medina,Cecilia
Camacho-Tamayo,Jesús H.
Cortés,César A.
dc.subject.por.fl_str_mv compaction
cluster analysis
principal components
Andisol
topic compaction
cluster analysis
principal components
Andisol
description The penetration resistance (PR) is a soil attribute that allows identifies areas with restrictions due to compaction, which results in mechanical impedance for root growth and reduced crop yield. The aim of this study was to characterize the PR of an agricultural soil by geostatistical and multivariate analysis. Sampling was done randomly in 90 points up to 0.60 m depth. It was determined spatial distribution models of PR, and defined areas with mechanical impedance for roots growth. The PR showed a random distribution to 0.55 and 0.60 m depth. PR in other depths analyzed showed spatial dependence, with adjustments to exponential and spherical models. The cluster analysis that considered sampling points allowed establishing areas with compaction problem identified in the maps by kriging interpolation. The analysis with main components identified three soil layers, where the middle layer showed the highest values of PR.
publishDate 2012
dc.date.none.fl_str_mv 2012-02-01
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=S0100-69162012000100010
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162012000100010
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0100-69162012000100010
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 Associação Brasileira de Engenharia Agrícola
publisher.none.fl_str_mv Associação Brasileira de Engenharia Agrícola
dc.source.none.fl_str_mv Engenharia Agrícola v.32 n.1 2012
reponame:Engenharia Agrícola
instname:Associação Brasileira de Engenharia Agrícola (SBEA)
instacron:SBEA
instname_str Associação Brasileira de Engenharia Agrícola (SBEA)
instacron_str SBEA
institution SBEA
reponame_str Engenharia Agrícola
collection Engenharia Agrícola
repository.name.fl_str_mv Engenharia Agrícola - Associação Brasileira de Engenharia Agrícola (SBEA)
repository.mail.fl_str_mv revistasbea@sbea.org.br||sbea@sbea.org.br
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