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	Provedor de dados Rev. Bras. Ciênc. Solo (1) Autor Costa,Liovando Marciano da (1) Fontes,Maurício Paulo Ferreira (1) Gilkes,Robert (1) Oliveira,Teogenes Senna de (1) Souza,José João Lelis Leal de (1) Palavra-chave Heavy metals (1) Principal component analysis (1) Rainforest soils (1) XRF (1) Tipo do documento Info:eu-repo/semantics/article (1) Ano 2018 (1) País Brazil (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Geochemical Signature of Amazon Tropical Rainforest Soils Rev. Bras. Ciênc. Solo Souza,José João Lelis Leal de; Fontes,Maurício Paulo Ferreira; Gilkes,Robert; Costa,Liovando Marciano da; Oliveira,Teogenes Senna de. ABSTRACT: Evaluating soil geochemical diversity in the Amazon Basin has been a challenge largely because most study sites have been at the edge of the basin and it is difficult to get samples in such a region. Here we show that even among the most weathered soils, physicochemical soil properties express lithology. Our results are based on topsoil samples collected from different locations in minimally disturbed areas in the state of Amazonas, Brazil. Soil properties were measured using methods which are suitable for highly developed soils. The Chemical Index Alteration and Weathering Index of Parker was calculated based on the content of metal(loid)s in soils determined by X-ray fluorescence. Descriptive statistics, Pearson correlation, and Principal... Tipo: Info:eu-repo/semantics/article Palavras-chave: Heavy metals; Principal component analysis; XRF; Rainforest soils. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832018000100403 Registros recuperados: 1 Primeira ... 1 ... Última

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