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Provedor de dados:  Rev. Bras. Ciênc. Solo
País:  Brazil
Título:  Structural quality of soils cultivated with coffee and pasture in an environmental protection area
Autores:  Lima,Vico Mendes Pereira
Magalhães,Ciro Augusto de Souza
Oliveira,Geraldo César de
Lima,José Maria de
Data:  2010-06-01
Ano:  2010
Palavras-chave:  Compression
Environmental sustainability
Soil water availability
Load support capacity
Soil penetration resistance
Resumo:  Studies of soils in Environmental Protection Areas (EPAs) are of great importance, because they are an essential component of ecosystems, directly interfering in environmental sustainability. The objective of this study was to evaluate the structural quality of soil cultivated with coffee and used as pasture in the Capituva's River microbasin, which is located in the Environmental Protection Area in Coqueiral, south of the state of Minas Gerais. Uniaxial compression test (preconsolidation test) and soil resistance to penetration were used. Undisturbed samples were taken from the surface layer (0-5 cm) of the soils in the area: a typic dystrophic Red Latosol (LVd - Oxisol), a typic eutrophic Red Argisol (PVe - Ultisol), and a typic dystrophic Haplic Cambisol (CXbd - Inceptisol). A significant linear positive correlation was observed between the results of the preconsolidation test and soil resistance to penetration. Load bearing capacity of soil could be estimated accordingly by means of penetration resistance for LVd, PVe, and CXbd. Cambisol - CXbd showed lower loading support capacity and resistance to penetration than LVd and PVe, due to the better crop management in this soil that resulted in higher physical quality which accounts for higher production and environmental sustainability.
Tipo:  Info:eu-repo/semantics/article
Idioma:  Inglês
Editor:  Sociedade Brasileira de Ciência do Solo
Relação:  10.1590/S0100-06832010000300012
Formato:  text/html
Fonte:  Revista Brasileira de Ciência do Solo v.34 n.3 2010
Direitos:  info:eu-repo/semantics/openAccess

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