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Registro Completo |
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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
12/05/2009 |
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Data da última atualização: |
12/05/2009 |
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Autoria: |
DIAS JUNIOR, M. de S.; FONSECA, S. da; ARAÚJO JÚNIOR, C.F.; SILVA, A.R |
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Título: |
Soil compaction due to forest harvest operations. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, v.42, n.2, p.257-264, fev. 2007. |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this work was to determine, through the use of the bearing capacity model, the traffic effects of the forest harvest operations on the preconsolidation pressure ( p), during one cycle of the eucalyptus plantation. The work was conducted using undisturbed soil samples, collected at the surface of the A horizon and in the top of the B horizon of an Udult (PA), Aquox (FX) and Udox (LA) soils. The undisturbed soil samples were used in the uniaxial compression tests. The soil sampling was done before and after the harvest operations. The operations performed with the Forwarder caused greater soil compaction than the ones done with the Feller Büncher and Harvester. The percentage of soil samples, in the region with additional soil compaction, indicated that the Udult was the soil class more susceptible to soil compaction, followed by the Aquox and Udox. Despite Udult is the more susceptible to soil compaction, the regeneration of the soil structure in this soil class was more efficient than in Aquox. The percentage of soil samples with p values in the region with additional soil compaction in 1996, 1998 and 2004, after harvest operations, indicated a sustainable forest exploration in this period. |
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Palavras-Chave: |
Bearing; Capacidade de suporte de carga; Capacity model; Estrutura do solo; Eucalyptus; Modelo; Preconsolidation pressure; Pressão de preconsolidação; Soil structure. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01987naa a2200265 a 4500
001 1063314
005 2009-05-12
008 2007 bl uuuu u00u1 u #d
100 1 $aDIAS JUNIOR, M. de S.
245 $aSoil compaction due to forest harvest operations.
260 $c2007
520 $aThe objective of this work was to determine, through the use of the bearing capacity model, the traffic effects of the forest harvest operations on the preconsolidation pressure ( p), during one cycle of the eucalyptus plantation. The work was conducted using undisturbed soil samples, collected at the surface of the A horizon and in the top of the B horizon of an Udult (PA), Aquox (FX) and Udox (LA) soils. The undisturbed soil samples were used in the uniaxial compression tests. The soil sampling was done before and after the harvest operations. The operations performed with the Forwarder caused greater soil compaction than the ones done with the Feller Büncher and Harvester. The percentage of soil samples, in the region with additional soil compaction, indicated that the Udult was the soil class more susceptible to soil compaction, followed by the Aquox and Udox. Despite Udult is the more susceptible to soil compaction, the regeneration of the soil structure in this soil class was more efficient than in Aquox. The percentage of soil samples with p values in the region with additional soil compaction in 1996, 1998 and 2004, after harvest operations, indicated a sustainable forest exploration in this period.
653 $aBearing
653 $aCapacidade de suporte de carga
653 $aCapacity model
653 $aEstrutura do solo
653 $aEucalyptus
653 $aModelo
653 $aPreconsolidation pressure
653 $aPressão de preconsolidação
653 $aSoil structure
700 1 $aFONSECA, S. da
700 1 $aARAÚJO JÚNIOR, C.F.
700 1 $aSILVA, A.R
773 $tPesquisa Agropecuária Brasileira, Brasília$gv.42, n.2, p.257-264, fev. 2007.
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