Data/hora: 02/06/2024 05:09:04

Provedor de dados: | 86
País: | Brazil
Título: | Relationship between macrofauna, mineralogy and exchangeable calcium and magnesium in Cerrado Oxisols under pasture
Autores: | Vendrame,Pedro Rodolfo Siqueira; Marchão,Robélio Leandro; Brito,Osmar Rodrigues; Guimarães,Maria de Fátima; Becquer,Thierry.
Data: | 2009-08-01
Ano: | 2009
Palavras-chave: | Gibbsite; Kaolinite; Soil fauna; Soil fertility; Total carbon.
Resumo: | The objective of this work was to assess the relationship between macrofauna, mineralogy and exchangeable calcium and magnesium in Cerrado Oxisols under pasture. Twelve collection points were chosen in the Distrito Federal and in Formosa municipality, Goiás state, Brazil, representing four soil groups with varied levels of calcium + magnesium and kaolinite/(kaolinite + gibbsite) ratios. Soil macrofauna was collected in triplicate at each collection point, and identified at the level of taxonomic groups. Macrofauna density showed correlation with contents of kaolinite, gibbsite and exchangeable Ca + Mg in the soils. Mineralogy and exchangeable Ca + Mg had significant effects on taxonomic groups and relative density of soil macrofauna. The termites (Isoptera) were more abundant in soils with low exchangeable Ca + Mg; earthworms (Oligochaeta), in soils with high levels of kaolinite; and Hemiptera and Coleoptera larvae were more abundant in gibbsitic soils with higher contents of total carbon.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2009000800031

Editor:

Embrapa Secretaria de Pesquisa e Desenvolvimento

Pesquisa Agropecuária Brasileira

Relação: | 10.1590/S0100-204X2009000800031
Formato: | text/html
Fonte: | Pesquisa Agropecuária Brasileira  v.44 n.8 2009
Fonte: | info:eu-repo/semantics/openAccess