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| Maranhão,Deyvid Diego Carvalho; Pereira,Marcos Gervasio; Collier,Leonardo Santos; Anjos,Lúcia Helena Cunha dos; Azevedo,Antonio Carlos; Cavassani,Rafael de Souza. |
| ABSTRACT The Bambuí Group, formed from siliciclastic sediments deposited on an extensive epicontinental platform at the end of the Neoproterozoic era, is characterized by limestones with fine to very fine texture. Limestone-derived soils in the southeast of Tocantins state, Brazil, are less notorious than similar soils in other regions of Brazil and their characterization could contribute to the Brazilian System for Soil Classification (SiBCS). Given that little is known of these soils, despitetheir agricultural potential, the objective of this study was to characterize their properties and the processes leading to soil of genesis, and also contribute to developing the Brazilian System of Soil Classification (SiBCS). Soils profiles were located on the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Karst environments; SiBCS; Dry forest; Carbonate character. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100308 |
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| Sixel,Ricardo Michael de Melo; Arthur Junior,José Carlos; Gonçalves,José Leonardo de Moraes; Alvares,Clayton Alcarde; Andrade,Gabriel Ramatis Pugliese; Azevedo,Antonio Carlos; Stahl,James; Moreira,Antônio Maurício. |
| ABSTRACT The impact of intensive management practices on the sustainability of forest production depends on maintenance of soil fertility. The contribution of forest residues and nutrient cycling in this process is critical. A 16-year-old stand of Pinus taeda in a Cambissolo Húmico Alumínico léptico (Humic Endo-lithic Dystrudept) in the south of Brazil was studied. A total of 10 trees were sampled distributed in five diameter classes according to diameter at breast height. The biomass of the needles, twigs, bark, wood, and roots was measured for each tree. In addition to plant biomass, accumulated plant litter was sampled, and soil samples were taken at three increments based on sampling depth: 0.00-0.20, 0.20-0.40, 0.40-0.60, 0.60-1.00, 1.00-1.40,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soil fertility; Nutrient cycling; Forest management. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000501416 |
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