Physical variables that explain alluvial soil variability and their spatial behavior

Detalhes bibliográficos
Autor(a) principal: Jaramillo, Daniel Francisco
Data de Publicação: 2012
Outros Autores: Gómez, María Luisa Anaya, Restrepo Mona, Carlos Andres, Sánchez, Hugo Alberto González, Mejía, Fernando Álvarez
Tipo de documento: Artigo
Idioma: spa
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/10855
Resumo: The objective of this work was to use the principal component and semivariance analyses to select physical variables that could explain the variability of an alluvial soil, in order to establish the spatial behavior of the chosen variables so that the location of experimental plots could be technically defined to study the abrasiveness effect on the wearing away of farm equipment. Field tests were performed in 2008, on a 6,000 m2 flat lot with medium to heavy soil texture (Vertic Haplustepts). An intensive sampling was done in a grid of 10x14 m. The variables which had the most weight on the first three principal components were the contents of silt, fine and intermediate sand, intermediate gravel, soil moisture at field capacity, and the hygroscopic coefficient. Except for the half sand and the field capacity, the other properties showed a high spatial dependence, and their distribution showed that in the experimental plot there are three sectors of differential accumulation of silt and fine sand. The combination of principal component analysis and geostatistics allowed for defining the soil properties involved in the wear of tools, their spatial pattern and the most appropriate way of distributing plots to study soil abrasiveness.
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spelling Physical variables that explain alluvial soil variability and their spatial behaviorVariables físicas que explican la variabilidad de suelo aluvial y su comportamiento espacialPhysical variables that explain alluvial soil variability and their spatial behaviorabrasiveness; tendency analysis; principal components; spatial dependence; geostatistics; soil textureabrasividad; análisis de tendencia; componentes principales; dependencia espacial; geoestadística; textura del sueloabrasiveness; tendency analysis; principal components; spatial dependence; geostatistics; soil textureThe objective of this work was to use the principal component and semivariance analyses to select physical variables that could explain the variability of an alluvial soil, in order to establish the spatial behavior of the chosen variables so that the location of experimental plots could be technically defined to study the abrasiveness effect on the wearing away of farm equipment. Field tests were performed in 2008, on a 6,000 m2 flat lot with medium to heavy soil texture (Vertic Haplustepts). An intensive sampling was done in a grid of 10x14 m. The variables which had the most weight on the first three principal components were the contents of silt, fine and intermediate sand, intermediate gravel, soil moisture at field capacity, and the hygroscopic coefficient. Except for the half sand and the field capacity, the other properties showed a high spatial dependence, and their distribution showed that in the experimental plot there are three sectors of differential accumulation of silt and fine sand. The combination of principal component analysis and geostatistics allowed for defining the soil properties involved in the wear of tools, their spatial pattern and the most appropriate way of distributing plots to study soil abrasiveness.El objetivo de este trabajo fue utilizar el análisis de componentes principales y de semivarianza para seleccionar variables físicas que explicaran la variabilidad de un suelo aluvial, y establecer el comportamiento espacial de las variables seleccionadas, con el fin de definir técnicamente la localización de parcelas experimentales para estudiar los efectos de la abrasividad del suelo sobre el desgaste de herramientas agrícolas. Las pruebas de campo se realizaron en 2008, en un lote plano de 6.000 m2 con suelos de textura media a pesada (Vertic Haplustepts). Se hizo un muestreo intensivo en cuadrícula de 10x14 m. Las variables que mayor peso tuvieron en los tres primeros componentes principales fueron los contenidos de limo, arena fina y media, gravilla media, la humedad a capacidad de campo y el coeficiente higroscópico. A excepción de la arena media y la capacidad de campo, las demás propiedades presentaron alta dependencia espacial y su distribución mostró que en el lote experimental se encuentran tres sectores de acumulación diferencial de limo y de arena fina. La combinación de los análisis de componentes principales y geoestadística permitió definir las propiedades del suelo involucradas en el desgaste de herramientas, su patrón espacial y la manera más adecuada de distribuir parcelas experimentales, para estudiar la abrasividad del suelo.The objective of this work was to use the principal component and semivariance analyses to select physical variables that could explain the variability of an alluvial soil, in order to establish the spatial behavior of the chosen variables so that the location of experimental plots could be technically defined to study the abrasiveness effect on the wearing away of farm equipment. Field tests were performed in 2008, on a 6,000 m2 flat lot with medium to heavy soil texture (Vertic Haplustepts). An intensive sampling was done in a grid of 10x14 m. The variables which had the most weight on the first three principal components were the contents of silt, fine and intermediate sand, intermediate gravel, soil moisture at field capacity, and the hygroscopic coefficient. Except for the half sand and the field capacity, the other properties showed a high spatial dependence, and their distribution showed that in the experimental plot there are three sectors of differential accumulation of silt and fine sand. The combination of principal component analysis and geostatistics allowed for defining the soil properties involved in the wear of tools, their spatial pattern and the most appropriate way of distributing plots to study soil abrasiveness.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraJaramillo, Daniel FranciscoGómez, María Luisa AnayaRestrepo Mona, Carlos AndresSánchez, Hugo Alberto GonzálezMejía, Fernando Álvarez2012-02-13info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/10855Pesquisa Agropecuaria Brasileira; v.46, n.12, dez. 2011; 1707-1715Pesquisa Agropecuária Brasileira; v.46, n.12, dez. 2011; 1707-17151678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAspahttps://seer.sct.embrapa.br/index.php/pab/article/view/10855/6715https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/10855/6252https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/10855/6262info:eu-repo/semantics/openAccess2014-05-13T16:38:24Zoai:ojs.seer.sct.embrapa.br:article/10855Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-05-13T16:38:24Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Physical variables that explain alluvial soil variability and their spatial behavior
Variables físicas que explican la variabilidad de suelo aluvial y su comportamiento espacial
Physical variables that explain alluvial soil variability and their spatial behavior
title Physical variables that explain alluvial soil variability and their spatial behavior
spellingShingle Physical variables that explain alluvial soil variability and their spatial behavior
Jaramillo, Daniel Francisco
abrasiveness; tendency analysis; principal components; spatial dependence; geostatistics; soil texture
abrasividad; análisis de tendencia; componentes principales; dependencia espacial; geoestadística; textura del suelo
abrasiveness; tendency analysis; principal components; spatial dependence; geostatistics; soil texture
title_short Physical variables that explain alluvial soil variability and their spatial behavior
title_full Physical variables that explain alluvial soil variability and their spatial behavior
title_fullStr Physical variables that explain alluvial soil variability and their spatial behavior
title_full_unstemmed Physical variables that explain alluvial soil variability and their spatial behavior
title_sort Physical variables that explain alluvial soil variability and their spatial behavior
author Jaramillo, Daniel Francisco
author_facet Jaramillo, Daniel Francisco
Gómez, María Luisa Anaya
Restrepo Mona, Carlos Andres
Sánchez, Hugo Alberto González
Mejía, Fernando Álvarez
author_role author
author2 Gómez, María Luisa Anaya
Restrepo Mona, Carlos Andres
Sánchez, Hugo Alberto González
Mejía, Fernando Álvarez
author2_role author
author
author
author
dc.contributor.none.fl_str_mv


dc.contributor.author.fl_str_mv Jaramillo, Daniel Francisco
Gómez, María Luisa Anaya
Restrepo Mona, Carlos Andres
Sánchez, Hugo Alberto González
Mejía, Fernando Álvarez
dc.subject.por.fl_str_mv abrasiveness; tendency analysis; principal components; spatial dependence; geostatistics; soil texture
abrasividad; análisis de tendencia; componentes principales; dependencia espacial; geoestadística; textura del suelo
abrasiveness; tendency analysis; principal components; spatial dependence; geostatistics; soil texture
topic abrasiveness; tendency analysis; principal components; spatial dependence; geostatistics; soil texture
abrasividad; análisis de tendencia; componentes principales; dependencia espacial; geoestadística; textura del suelo
abrasiveness; tendency analysis; principal components; spatial dependence; geostatistics; soil texture
description The objective of this work was to use the principal component and semivariance analyses to select physical variables that could explain the variability of an alluvial soil, in order to establish the spatial behavior of the chosen variables so that the location of experimental plots could be technically defined to study the abrasiveness effect on the wearing away of farm equipment. Field tests were performed in 2008, on a 6,000 m2 flat lot with medium to heavy soil texture (Vertic Haplustepts). An intensive sampling was done in a grid of 10x14 m. The variables which had the most weight on the first three principal components were the contents of silt, fine and intermediate sand, intermediate gravel, soil moisture at field capacity, and the hygroscopic coefficient. Except for the half sand and the field capacity, the other properties showed a high spatial dependence, and their distribution showed that in the experimental plot there are three sectors of differential accumulation of silt and fine sand. The combination of principal component analysis and geostatistics allowed for defining the soil properties involved in the wear of tools, their spatial pattern and the most appropriate way of distributing plots to study soil abrasiveness.
publishDate 2012
dc.date.none.fl_str_mv 2012-02-13
dc.type.none.fl_str_mv
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 https://seer.sct.embrapa.br/index.php/pab/article/view/10855
url https://seer.sct.embrapa.br/index.php/pab/article/view/10855
dc.language.iso.fl_str_mv spa
language spa
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/10855/6715
https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/10855/6252
https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/10855/6262
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 Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
dc.source.none.fl_str_mv Pesquisa Agropecuaria Brasileira; v.46, n.12, dez. 2011; 1707-1715
Pesquisa Agropecuária Brasileira; v.46, n.12, dez. 2011; 1707-1715
1678-3921
0100-104x
reponame:Pesquisa Agropecuária Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Agropecuária Brasileira (Online)
collection Pesquisa Agropecuária Brasileira (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pab@sct.embrapa.br || sct.pab@embrapa.br
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