Aggregate stability in soils cultivated with eucalyptus

Detalhes bibliográficos
Autor(a) principal: Avanzi, Junior Cesar
Data de Publicação: 2011
Outros Autores: Norton, Lloyd Darrell, Silva, Marx Leandro Naves, Curi, Nilton, Oliveira, Anna Hoffmann, da Silva, Mayesse Aparecida
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/9294
Resumo: The objective of this work was to evaluate the aggregate stability of tropical soils under eucalyptus plantation and native vegetation, and assess the relationships between aggregate stability and some soil chemical and physical properties. Argisols, Cambisol, Latosols and Plinthosol within three eucalyptus-cultivated regions, in the states of Espírito Santo, Rio Grande do Sul and Minas Gerais, Brazil, were studied. For each region, soils under native vegetation were compared to those under minimum tillage with eucalyptus cultivation. The aggregate stability was measured using the high-energy moisture characteristic (HEMC) technique, i.e., the moisture release curve at very low suctions. This method compares the resistance of aggregates to slaking on a relative scale from zero to one. Thus, the aggregate stability from different soils and management practices can be directly compared. The aggregate stability ratio was greater than 50% for all soils, which shows that the aggregate stability index is high, both in eucalyptus and native vegetation areas. This suggests that soil management adopted for eucalyptus cultivation does not substantially modify this property. In these soils, the aggregate stability ratio does not show a good relationship with clay or soil organic matter contents. However, soil organic matter shows a positive relationship with clay content and cation exchange capacity.
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spelling Aggregate stability in soils cultivated with eucalyptusEstabilidade de agregados em solos cultivados com eucaliptoEucalyptus ap.; high-energy moisture characteristic curve; forest systems; tropical soilsEucalyptus sp.; curva característica de umidade em alta energia; sistemas florestais; solos tropicaisThe objective of this work was to evaluate the aggregate stability of tropical soils under eucalyptus plantation and native vegetation, and assess the relationships between aggregate stability and some soil chemical and physical properties. Argisols, Cambisol, Latosols and Plinthosol within three eucalyptus-cultivated regions, in the states of Espírito Santo, Rio Grande do Sul and Minas Gerais, Brazil, were studied. For each region, soils under native vegetation were compared to those under minimum tillage with eucalyptus cultivation. The aggregate stability was measured using the high-energy moisture characteristic (HEMC) technique, i.e., the moisture release curve at very low suctions. This method compares the resistance of aggregates to slaking on a relative scale from zero to one. Thus, the aggregate stability from different soils and management practices can be directly compared. The aggregate stability ratio was greater than 50% for all soils, which shows that the aggregate stability index is high, both in eucalyptus and native vegetation areas. This suggests that soil management adopted for eucalyptus cultivation does not substantially modify this property. In these soils, the aggregate stability ratio does not show a good relationship with clay or soil organic matter contents. However, soil organic matter shows a positive relationship with clay content and cation exchange capacity.O objetivo deste trabalho foi avaliar a estabilidade de agregados, em solos tropicais sob cultivo de eucalipto e vegetação nativa, e avaliar as relações entre a estabilidade de agregados e alguns atributos químicos e físicos do solo. Foram estudados Argissolos, Cambissolo, Latossolos e Plintossolo dentro de três regiões com cultivo de eucalipto, nos estados do Espírito Santo, Rio Grande do Sul e Minas Gerais. Para cada região, os solos com vegetação nativa foram comparados aos solos com preparo mínimo sob plantio de eucalipto. A estabilidade de agregados foi determinada por meio da técnica da curva característica da umidade em alta energia (HEMC), isto é, a curva de retenção de umidade na sucção muito baixa. Este método compara a resistência dos agregados à quebra em uma escala relativa de zero a um. Deste modo, a estabilidade de agregado em diferentes solos e práticas de manejo pode ser diretamente comparada. A razão de estabilidade de agregados foi maior que 50% em todos os solos estudados o que indica que o índice de estabilidade de agregados é alto tanto nas áreas com cultivo de eucalipto quanto naquelas com vegetação nativa. Isto sugere que o manejo do solo adotado para o eucalipto não modifica substancialmente este atributo. Nesses solos, a razão de estabilidade de agregados não mostra boa correlação com o conteúdo de argila ou de matéria orgânica. Entretanto, a matéria orgânica do solo mostra uma positiva correlação com o conteúdo de argila e com a capacidade de troca de cátion.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraAvanzi, Junior CesarNorton, Lloyd DarrellSilva, Marx Leandro NavesCuri, NiltonOliveira, Anna Hoffmannda Silva, Mayesse Aparecida2011-03-23info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/9294Pesquisa Agropecuaria Brasileira; v.46, n.1, jan. 2011; 89-96Pesquisa Agropecuária Brasileira; v.46, n.1, jan. 2011; 89-961678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAenghttps://seer.sct.embrapa.br/index.php/pab/article/view/9294/6187https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/9294/4553info:eu-repo/semantics/openAccess2014-05-16T17:22:39Zoai:ojs.seer.sct.embrapa.br:article/9294Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-05-16T17:22:39Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Aggregate stability in soils cultivated with eucalyptus
Estabilidade de agregados em solos cultivados com eucalipto
title Aggregate stability in soils cultivated with eucalyptus
spellingShingle Aggregate stability in soils cultivated with eucalyptus
Avanzi, Junior Cesar
Eucalyptus ap.; high-energy moisture characteristic curve; forest systems; tropical soils
Eucalyptus sp.; curva característica de umidade em alta energia; sistemas florestais; solos tropicais
title_short Aggregate stability in soils cultivated with eucalyptus
title_full Aggregate stability in soils cultivated with eucalyptus
title_fullStr Aggregate stability in soils cultivated with eucalyptus
title_full_unstemmed Aggregate stability in soils cultivated with eucalyptus
title_sort Aggregate stability in soils cultivated with eucalyptus
author Avanzi, Junior Cesar
author_facet Avanzi, Junior Cesar
Norton, Lloyd Darrell
Silva, Marx Leandro Naves
Curi, Nilton
Oliveira, Anna Hoffmann
da Silva, Mayesse Aparecida
author_role author
author2 Norton, Lloyd Darrell
Silva, Marx Leandro Naves
Curi, Nilton
Oliveira, Anna Hoffmann
da Silva, Mayesse Aparecida
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Avanzi, Junior Cesar
Norton, Lloyd Darrell
Silva, Marx Leandro Naves
Curi, Nilton
Oliveira, Anna Hoffmann
da Silva, Mayesse Aparecida
dc.subject.por.fl_str_mv Eucalyptus ap.; high-energy moisture characteristic curve; forest systems; tropical soils
Eucalyptus sp.; curva característica de umidade em alta energia; sistemas florestais; solos tropicais
topic Eucalyptus ap.; high-energy moisture characteristic curve; forest systems; tropical soils
Eucalyptus sp.; curva característica de umidade em alta energia; sistemas florestais; solos tropicais
description The objective of this work was to evaluate the aggregate stability of tropical soils under eucalyptus plantation and native vegetation, and assess the relationships between aggregate stability and some soil chemical and physical properties. Argisols, Cambisol, Latosols and Plinthosol within three eucalyptus-cultivated regions, in the states of Espírito Santo, Rio Grande do Sul and Minas Gerais, Brazil, were studied. For each region, soils under native vegetation were compared to those under minimum tillage with eucalyptus cultivation. The aggregate stability was measured using the high-energy moisture characteristic (HEMC) technique, i.e., the moisture release curve at very low suctions. This method compares the resistance of aggregates to slaking on a relative scale from zero to one. Thus, the aggregate stability from different soils and management practices can be directly compared. The aggregate stability ratio was greater than 50% for all soils, which shows that the aggregate stability index is high, both in eucalyptus and native vegetation areas. This suggests that soil management adopted for eucalyptus cultivation does not substantially modify this property. In these soils, the aggregate stability ratio does not show a good relationship with clay or soil organic matter contents. However, soil organic matter shows a positive relationship with clay content and cation exchange capacity.
publishDate 2011
dc.date.none.fl_str_mv 2011-03-23
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/9294
url https://seer.sct.embrapa.br/index.php/pab/article/view/9294
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/9294/6187
https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/9294/4553
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.1, jan. 2011; 89-96
Pesquisa Agropecuária Brasileira; v.46, n.1, jan. 2011; 89-96
1678-3921
0100-104x
reponame:Pesquisa Agropecuária Brasileira (Online)
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collection Pesquisa Agropecuária Brasileira (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
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