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Provedor de dados:  Repositório Alice
País:  Brazil
Título:  Assessment of heavy metals in soils of a vineyard region with the use of principal component analysis.
Autores:  VALLADARES, G. S.
CAMARGO, O. A. de
CARVALHO, J. R. P. de
SILVA, A. M. C.
Data:  2009-11-25
Ano:  2009
Palavras-chave:  Análise de componentes principais.
Cobre
Zinco
Poluição do Solo.
Principal component analysis
Geographic information systems
Soil pollution
Copper
Zinc
Resumo:  Agricultural management with chemicals may contaminate the soil with heavy metals. The objective of this study was to apply Principal Component Analysis and geoprocessing techniques to identify the origin of the metals Cu, Fe, Mn, Zn, Ni, Pb, Cr and Cd as potential contaminants of agricultural soils. The study was developed in an area of vineyard cultivation in the State of São Paulo, Brazil. Soil samples were collected and GPS located under different uses and coverings. The metal concentrations in the soils were determined using the DTPA method. The Cu and Zn content was considered high in most of the samples, and was larger in the areas cultivated with vineyards that had been under the application of fungicides for several decades. The concentrations of Cu and Zn were correlated. The geoprocessing techniques and the Principal Component Analysis confirmed the enrichment of the soil with Cu and Zn because of the use and management of the vineyards with chemicals in the preceding decades.
Tipo:  Artigo de periódico
Idioma:  Inglês
Identificador:  Scientia Agricola, Piracicaba, v. 66, n. 3, p. 361-367, May/June 2009.

http://www.alice.cnptia.embrapa.br/alice/handle/doc/575988

http://dx.doi.org/10.1590/S0103-90162009000300011
Direitos:  openAccess
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