SciELO - Scientific Electronic Library Online

 
vol.34 número2Emissão de óxido nitroso do solo no periodo pós-colheita alterada pelos resíduos das culturas de verão e seu manejo em latossolo do sul do BrasilAvaliação do transporte de atrazina em solos sob diferentes condições de manejo agrícola índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

Compartilhar


Revista Brasileira de Ciência do Solo

versão On-line ISSN 1806-9657

Resumo

FARIA, Ana Flávia Gouveia de; SANTOS, Antonio Clementino dos; SANTOS, Thiago Martins dos  e  BATISTELLA FILHO, Felipe. Influence of soil management on chemical and physical soil properties along a toposequence in the Araguaia river basin, State of Tocantins. Rev. Bras. Ciênc. Solo [online]. 2010, vol.34, n.2, pp.517-524. ISSN 1806-9657.  http://dx.doi.org/10.1590/S0100-06832010000200025.

The conversion of native vegetation into agricultural areas can modify soil organic matter content and decomposition and synthesis processes and therefore the nutrient avalilability. The aim of this study was to evaluate the chemical and physical soil properties (0-15 cm depth) in a toposequence characterized by planted pasture beside the native Cerrado vegetation cover. The study was carried out in Colméia, State of Tocantins. Ten sampling points were determined (five samples in native vegetation and five samples in pasture) for each relief position (summit, midslope and footslope) and at each point soils were sampled at three depths (0-5, 5-10 and 10-15 cm), totaling 90 samples. The following chemical and physical properties were analyzed: organic C, P, K+, Ca2+, Mg2+, H + Al, pH, and texture. Organic C content found under native vegetation did not differ from pasture and the relief positions. The conversion from native vegetation to livestock use decreased P contents. The removal of native vegetation did not alter available K contents. There was an increase in sand content from midslope to the footslope positions.

Palavras-chave : native vegetation; pasture; relief.

        · resumo em Português     · texto em Português     · Português ( pdf )

 

Creative Commons License Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons