Nutrients in Amazonian Black Earth from Caxiuanã Region
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...
| Autor principal: | LEMOS, Vanda Porpino |
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| Outros Autores: | MEIRELES, Antônio Roberto de Oliveira, DANTAS, Kelly das Graças Fernandes, MORAES, Milena Carvalho de, COSTA, Marcondes Lima da, SILVA, Any Kelly Terra da, KERN, Dirse Clara |
| Grau: | Artigo |
| Idioma: | eng |
| Publicado em: |
2013
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| Acesso em linha: |
http://repositorio.ufpa.br/jspui/handle/2011/4527 |
| Resumo: |
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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. |