NDLI: Relationship between macrofauna, mineralogy and exchangeable calcium and magnesium in Cerrado Oxisols under pasture

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Relationship between macrofauna, mineralogy and exchangeable calcium and magnesium in Cerrado Oxisols under pasture

Content Provider	Scilit
Author	Vendrame, Pedro Rodolfo Siqueira Marchão, Robélio Leandro Brito, Osmar Rodrigues de Fátima Guimarães, Maria Becquer, Thierry
Copyright Year	2009
Description	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.
Related Links	http://www.scielo.br/pdf/pab/v44n8/v44n8a31.pdf http://www.scielo.br/scielo.php?script=sci_pdf&pid=S0100-204X2009000800031&lng=en&nrm=iso&tlng=en
ISSN	0100204X
e-ISSN	16783921
DOI	10.1590/s0100-204x2009000800031
Journal	Pesquisa Agropecuária Brasileira
Issue Number	8
Volume Number	44
Language	English
Publisher	FapUNIFESP (SciELO)
Publisher Date	2009-08-01
Access Restriction	Open
Subject Keyword	Pesquisa Agropecuária Brasileira Biodiversity Conservation Soil Fauna Soil Fertility
Content Type	Text
Resource Type	Article
Subject	Animal Science and Zoology Agronomy and Crop Science

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