Atributos do solo relacionados à adsorção de cádmio e cobre em solos tropicais - DOI: 10.4025/actasciagron.v27i4.1348

Luis Reynaldo Ferraciciú Alleoni; Cindy Silva Moreira Iglesias; Simone de Castro Mello; Otávio Antonio de Camargo; José Carlos Casagrande; Norberto Antonio Lavorenti

doi:10.4025/actasciagron.v27i4.1348

Soil attributes related to cadmium and copper adsorption in tropical soils - DOI: 10.4025/actasciagron.v27i4.1348

Luis Reynaldo Ferraciciú Alleoni esalq-usp
Cindy Silva Moreira Iglesias DE FERRAN AMBIENTAL
Simone de Castro Mello ESALQ - USP
Otávio Antonio de Camargo IAC
José Carlos Casagrande UFSCar
Norberto Antonio Lavorenti UFSCar

DOI: https://doi.org/10.4025/actasciagron.v27i4.1348

Abstract

Chemical reactions and physical and biological processes control the adsorption of Cd and Cu by soils. Heavy metal retention by soils can decrease their bioavailability in the soil-solution system. Cd and Cu adsorption were evaluated in in-surface and subsurface horizons of eight Brazilian soils: five Oxisols, two Alfisols and one Ultisol. The maximum adsorption estimated by the linearized Langmuir equation was correlated with some soil attributes. In the surface horizon, Cd maximum adsorption was positively correlated with total CEC, specific surface area, and clay, silt, “free” Fe and “total” Al (extracted by sulfuric acid) contents, while, in the subsurface horizon, the correlation was positive with effective CEC, pH, and “amorphous” Fe contents. Maximum Cd adsorption was also negatively correlated with sand contents in surface horizons. On the other hand, in the surface horizons, maximum Cu adsorption was positively correlated with percentage of Al saturation and clay, “total” and “amorphous” Al oxides contents; in subsurface horizons, it was correlated with pH and clay and “amorphous” Al oxides contents

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Author Biography

Luis Reynaldo Ferraciciú Alleoni, esalq-usp

Possui graduação em Engenharia Agronômica pela Escola Superior de Agricultura Luiz de Queiroz (ESALQ), da Universidade de São Paulo (USP) em 1985, mestrado (1992) e doutorado (1996) em Solos e Nutrição de Plantas e Livre-Docência em Química do Solo (2000) pela ESALQ/USP, além de Pós-Doutorado pela Universidade da Florida (2005/2006). É Professor Associado do Departamento de Ciência do Solo da ESALQ/USP, Vice-Coordenador da Comissão de Química e Mineralogia da Sociedade Brasileira de Ciência do Solo, Editor-Chefe da revista Scientia Agricola e membro do Comitê Consultivo da base de dados SciELO. Tem experiência na área de Agronomia, com ênfase em Química do Solo, atuando principalmente nos seguintes temas: alterações químicas do solo em função do manejo e comportamento de elementos potencialmente tóxicos no ambiente Currículo Lattes

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Published

2008-04-07

How to Cite

Alleoni, L. R. F., Iglesias, C. S. M., Mello, S. de C., Camargo, O. A. de, Casagrande, J. C., & Lavorenti, N. A. (2008). Soil attributes related to cadmium and copper adsorption in tropical soils - DOI: 10.4025/actasciagron.v27i4.1348. Acta Scientiarum. Agronomy, 27(4), 729-737. https://doi.org/10.4025/actasciagron.v27i4.1348

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Issue

Vol 27 No 4 (2005)

Section

Soils

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