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Title: Nutrients in Amazonian Black Earth from Caxiuanã Region
Keywords: Nutrientes
Terra preta
Floresta Nacional de Caxiuanã - PA
Melgaço - PA
Pará - Estado
Amazônia brasileira
Issue Date: 2011
Citation: LEMOS, Vanda P. et al. Nutrients in Amazonian Black Earth from Caxiuanã Region. Journal of the Brazilian Chemical Society, São Paulo, v. 22, n. 4, p. 772-779, 2011. Disponível em: <>. Acesso em: 05 dez. 2013. <>.
Abstract: Dispersion of nutrients in Amazonian black earth (ABE) can provide information on human activities of the inhabitants of the Amazon region. Studies on the pH, available phosphorus (P), organic matter (OM) and the exchangeable cations Ca2+ e Mg2+ were performed on soil samples from horizons A1 and A2 over an area with TPA (north-south and east-west) at a site called Ilha de Terra, located in the Conservation Unit Caxiuanã National Forest, Melgaço County, Brazil. The results indicated that the OM and Ca2+ are the ones with greater dispersion. Higher correlations were found between OM-Ca-Mg to near the central area. This leads to the inference that the dispersion geochemistry of MO, Ca, Mg and P in archaeological sites with TPA is related to past human activities.
ISSN: 0103-5053
Appears in Collections:Artigos Científicos - FAQUI/ICEN

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