Spatial variability of total porosity, moisture and soil resistance to penetration of a yellow ultisol

Detalhes bibliográficos
Autor(a) principal: Mion, Renildo Luiz
Data de Publicação: 2012
Outros Autores: Nascimento, Elivânia Maria Sousa, Sales, Francisco Alexandre de Lima, Silva, Silvia Ferreira da, Duarte, José Moacir Lima, Sousa, Beatriz Marques de
Tipo de documento: Artigo
Idioma: por
Título da fonte: Semina. Ciências Agrárias (Online)
Texto Completo: https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/7907
Resumo: The study of spatial variability of soil attributes is important in areas under different uses and management. The moisture and soil resistance to penetration are considered an indicative parameter of soil physical quality. The objective of this work to study the spatial variability of total porosity, soil resistance to penetration and moisture in an area of rotational grazing sheep. The experiment was conducted in a Yellow Ultisol with a sandy texture in the layers of 0- 0.1, 0.1-0.2 and 0.2-0.3 m. For the determination of properties and soil resistance to penetration was defined a grid, with regular intervals of 30 m, total of 13 points. The total porosity (TP) and the gravimetric soil moisture (SU) were obtained by collecting undisturbed samples (Uhland soil sampler) and disturbed samples, respectively. The soil resistance to penetration (PR) was determined at each point using an electronic georeferenced penetrometer. The results showed that TP had a low variation coefficient in all studied layers. The SU in all evaluated layers and the PR in layers 0-0.1 and 0.1-0.2 m showed a medium variation coefficient. The PR in layer 0.2-0.3 m showed a high variation coefficient showing the average distribution with a high heterogeneity in the data. The attributes TP, PR and SU showed a weak spatial dependency index (SDI) in all evaluated layers. The PR increases as the TP and the SU has a smaller influence on the soil.
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spelling Spatial variability of total porosity, moisture and soil resistance to penetration of a yellow ultisolVariabilidade espacial da porosidade total, umidade e resistência do solo à penetração de um Argissolo amareloCone indexGeostatisticPenetrometer.Índice de coneGeoestatísticaPenetrógrafo.Mecanização AgrícolaThe study of spatial variability of soil attributes is important in areas under different uses and management. The moisture and soil resistance to penetration are considered an indicative parameter of soil physical quality. The objective of this work to study the spatial variability of total porosity, soil resistance to penetration and moisture in an area of rotational grazing sheep. The experiment was conducted in a Yellow Ultisol with a sandy texture in the layers of 0- 0.1, 0.1-0.2 and 0.2-0.3 m. For the determination of properties and soil resistance to penetration was defined a grid, with regular intervals of 30 m, total of 13 points. The total porosity (TP) and the gravimetric soil moisture (SU) were obtained by collecting undisturbed samples (Uhland soil sampler) and disturbed samples, respectively. The soil resistance to penetration (PR) was determined at each point using an electronic georeferenced penetrometer. The results showed that TP had a low variation coefficient in all studied layers. The SU in all evaluated layers and the PR in layers 0-0.1 and 0.1-0.2 m showed a medium variation coefficient. The PR in layer 0.2-0.3 m showed a high variation coefficient showing the average distribution with a high heterogeneity in the data. The attributes TP, PR and SU showed a weak spatial dependency index (SDI) in all evaluated layers. The PR increases as the TP and the SU has a smaller influence on the soil.O estudo da variabilidade espacial de atributos do solo é importante em áreas sob diferentes usos e manejos. A umidade e a resistência do solo à penetração são consideradas um parâmetro indicativo da qualidade física do solo. Objetivou-se com este trabalho estudar a variabilidade espacial da porosidade total, resistência do solo à penetração e da umidade em uma área de pastejo rotacionado de ovinos. O experimento foi conduzido em um Argissolo Amarelo de textura arenosa nas camadas de 0-0,1, 0,1-0,2 e 0,2-0,3m. Para a determinação dos atributos e resistência do solo à penetração foi delimitada uma malha, com intervalos regulares de 30 m, perfazendo um total de 13 pontos. A porosidade total (PT) e a umidade gravimétrica foram obtidas através das coletas de amostras indeformadas (amostrador do tipo Uhland) e deformadas, respectivamente. A resistência do solo à penetração (RP) foi determinada em cada ponto, utilizando um penetrômetro eletrônico georreferenciado. Os resultados mostraram que a PT apresentou um coeficiente de variação baixo em todas as camadas estudadas. A US em todas as camadas avaliadas e a RP nas camadas de 0-0,1 e 0,1-0,2m apresentaram um coeficiente de variação médio. A RP na camada de 0,2-0,3m apresentou um coeficiente de variação alto mostrando uma distribuição com alta heterogeneidade nos dados. Os atributos PT, RP e US apresentaram um índice de dependência espacial (IDE) fraco em todas as camadas avaliadas. A RP aumenta à medida que a PT e a US exerce uma menor influência sobre o solo.UEL2012-12-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/790710.5433/1679-0359.2012v33n6p2057Semina: Ciências Agrárias; Vol. 33 No. 6 (2012); 2057-2066Semina: Ciências Agrárias; v. 33 n. 6 (2012); 2057-20661679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELporhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/7907/11663Mion, Renildo LuizNascimento, Elivânia Maria SousaSales, Francisco Alexandre de LimaSilva, Silvia Ferreira daDuarte, José Moacir LimaSousa, Beatriz Marques deinfo:eu-repo/semantics/openAccess2015-11-19T18:37:13Zoai:ojs.pkp.sfu.ca:article/7907Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2015-11-19T18:37:13Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false
dc.title.none.fl_str_mv Spatial variability of total porosity, moisture and soil resistance to penetration of a yellow ultisol
Variabilidade espacial da porosidade total, umidade e resistência do solo à penetração de um Argissolo amarelo
title Spatial variability of total porosity, moisture and soil resistance to penetration of a yellow ultisol
spellingShingle Spatial variability of total porosity, moisture and soil resistance to penetration of a yellow ultisol
Mion, Renildo Luiz
Cone index
Geostatistic
Penetrometer.
Índice de cone
Geoestatística
Penetrógrafo.
Mecanização Agrícola
title_short Spatial variability of total porosity, moisture and soil resistance to penetration of a yellow ultisol
title_full Spatial variability of total porosity, moisture and soil resistance to penetration of a yellow ultisol
title_fullStr Spatial variability of total porosity, moisture and soil resistance to penetration of a yellow ultisol
title_full_unstemmed Spatial variability of total porosity, moisture and soil resistance to penetration of a yellow ultisol
title_sort Spatial variability of total porosity, moisture and soil resistance to penetration of a yellow ultisol
author Mion, Renildo Luiz
author_facet Mion, Renildo Luiz
Nascimento, Elivânia Maria Sousa
Sales, Francisco Alexandre de Lima
Silva, Silvia Ferreira da
Duarte, José Moacir Lima
Sousa, Beatriz Marques de
author_role author
author2 Nascimento, Elivânia Maria Sousa
Sales, Francisco Alexandre de Lima
Silva, Silvia Ferreira da
Duarte, José Moacir Lima
Sousa, Beatriz Marques de
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Mion, Renildo Luiz
Nascimento, Elivânia Maria Sousa
Sales, Francisco Alexandre de Lima
Silva, Silvia Ferreira da
Duarte, José Moacir Lima
Sousa, Beatriz Marques de
dc.subject.por.fl_str_mv Cone index
Geostatistic
Penetrometer.
Índice de cone
Geoestatística
Penetrógrafo.
Mecanização Agrícola
topic Cone index
Geostatistic
Penetrometer.
Índice de cone
Geoestatística
Penetrógrafo.
Mecanização Agrícola
description The study of spatial variability of soil attributes is important in areas under different uses and management. The moisture and soil resistance to penetration are considered an indicative parameter of soil physical quality. The objective of this work to study the spatial variability of total porosity, soil resistance to penetration and moisture in an area of rotational grazing sheep. The experiment was conducted in a Yellow Ultisol with a sandy texture in the layers of 0- 0.1, 0.1-0.2 and 0.2-0.3 m. For the determination of properties and soil resistance to penetration was defined a grid, with regular intervals of 30 m, total of 13 points. The total porosity (TP) and the gravimetric soil moisture (SU) were obtained by collecting undisturbed samples (Uhland soil sampler) and disturbed samples, respectively. The soil resistance to penetration (PR) was determined at each point using an electronic georeferenced penetrometer. The results showed that TP had a low variation coefficient in all studied layers. The SU in all evaluated layers and the PR in layers 0-0.1 and 0.1-0.2 m showed a medium variation coefficient. The PR in layer 0.2-0.3 m showed a high variation coefficient showing the average distribution with a high heterogeneity in the data. The attributes TP, PR and SU showed a weak spatial dependency index (SDI) in all evaluated layers. The PR increases as the TP and the SU has a smaller influence on the soil.
publishDate 2012
dc.date.none.fl_str_mv 2012-12-04
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://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/7907
10.5433/1679-0359.2012v33n6p2057
url https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/7907
identifier_str_mv 10.5433/1679-0359.2012v33n6p2057
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/7907/11663
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 UEL
publisher.none.fl_str_mv UEL
dc.source.none.fl_str_mv Semina: Ciências Agrárias; Vol. 33 No. 6 (2012); 2057-2066
Semina: Ciências Agrárias; v. 33 n. 6 (2012); 2057-2066
1679-0359
1676-546X
reponame:Semina. Ciências Agrárias (Online)
instname:Universidade Estadual de Londrina (UEL)
instacron:UEL
instname_str Universidade Estadual de Londrina (UEL)
instacron_str UEL
institution UEL
reponame_str Semina. Ciências Agrárias (Online)
collection Semina. Ciências Agrárias (Online)
repository.name.fl_str_mv Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)
repository.mail.fl_str_mv semina.agrarias@uel.br
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