Data/hora: 05/06/2024 06:45:14

Biblioteca(s): 	Embrapa Cerrados.	
Data corrente: 	26/10/2009	
Data da última atualização: 	26/10/2009	
Autoria: 	VENDRAME, P. R. S.; MARCHAO, R. L.; BRITO, O. R.; GUIMARÃES, M. de F.; BECQUER, T.	
Afiliação: 	Pedro Rodolfo Siqueira Vendrame, Universidade Estadual de Londrina; ROBELIO LEANDRO MARCHAO, CPAC; Osmar Rodrigues Brito, Universidade Estadual de Londrina; Maria de Fátima Guimarães, Universidade Estadual de Londrina; Thierry Becquer, Institut de Recherche pour le Développement.	
Título: 	Relationship between macrofauna, mineralogy and exchangeable calcium and magnesium in Cerrado Oxisols under pasture	
Ano de publicação: 	2009	
Fonte/Imprenta: 	Pesquisa Agropecuária Brasileira, Brasília, v. 44, n. 8, p. 996-1001, ago. 2009.	
Idioma: 	Inglês	
Conteúdo: 	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	
Palavras-Chave: 	Caulinita; Fauna do solo.	
Thesagro: 	Cerrado; Fertilidade do solo; Mineralogia.	
Categoria do assunto: 	A Sistemas de Cultivo	
Registro original: 	Embrapa Cerrados (CPAC)	
Exemplares: 	CPAC - (30884-1) - UPC - SP - PP - CRI1268 -  - CRI1268 - DIS