Data/hora: 11/06/2024 23:16:54

Biblioteca(s): 	Embrapa Unidades Centrais.	
Data corrente: 	04/01/2008	
Data da última atualização: 	06/07/2018	
Autoria: 	DIAS JUNIOR, M. de S.; FONSECA, S. da; ARAÚJO JÚNIOR, C. F.; SILVA, A. R.	
Afiliação: 	Moacir de Souza Dias Junior, Universidade Federal de Lavras - UFLA/Departamento de Ciência do Solo; Sebastião da Fonseca, Aracruz Celulose S.A.; Cezar Francisco Araújo Júnior, Universidade Federal de Lavras - UFLA/Departamento de Ciência do Solo; Arystides Resende Silva, Universidade Federal de Lavras - UFLA/Departamento de Ciência do Solo.	
Título: 	Soil compaction due to forest harvest operations.	
Ano de publicação: 	2007	
Fonte/Imprenta: 	Pesquisa Agropecuária Brasileira, Brasília, DF, v. 42, n. 2, p.257-264, fev. 2007	
Idioma: 	Inglês	
Notas: 	Título em português: Compactação do solo em conseqüência das operações de colheita florestal.	
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.	
Palavras-Chave: 	bearing; capacidade de suporte de carga; capacity model; modelos; preconsolidation pressure; pressão de preconsolidação.	
Thesagro: 	Estrutura do Solo.	
Thesaurus Nal: 	Eucalyptus; soil structure.	
Categoria do assunto: 	--	
URL: 	http://ainfo.cnptia.embrapa.br/digital/bitstream/item/106954/1/Soil.pdf	
Registro original: 	Embrapa Unidades Centrais (AI-SEDE)	
Exemplares: 	AI-SEDE - (40994-1) - UPE - AP - DD - 630.72081 - P474 -  - DIS