Predicting potentially toxic elements in tropical soils from iron oxides, magnetic susceptibility and diffuse reflectance spectra

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dc.contributor.authorCamargo, Livia Arantes [UNESP]
dc.contributor.authorMarques, José [UNESP]
dc.contributor.authorBarrón, Vidal
dc.contributor.authorAlleoni, Luís Reynaldo Ferracciú
dc.contributor.authorPereira, Gener Tadeu [UNESP]
dc.contributor.authorTeixeira, Daniel De Bortoli
dc.contributor.authorBahia, Angélica Santos Rabelo de Souza [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidad de Córdoba
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversity of Marília
dc.date.accessioned2018-12-11T17:18:28Z
dc.date.available2018-12-11T17:18:28Z
dc.date.issued2018-06-01
dc.description.abstractEnvironmental impacts can be more accurately assessed with the aid of spatial characterization of potentially toxic elements (PTEs). In fact, developing cost-effective, environmentally friendly spatial characterization methods for PTEs can facilitate the expeditious, accurate, detailed diagnosis of soil in large areas. In this study, we used three geomorphic surfaces of Oxisols to assess the ability of chemical and X-ray diffraction analyses of iron oxides, diffuse reflectance spectroscopy (DRS) and magnetic susceptibility (MS) measurements to predict the contents in PTEs (Ba, Co, Cr, Cu, Mn, Mo, Ni, Pb and Zn) and their spatial variability. Magnetic susceptibility and diffuse reflectance spectroscopy allowed well-calibrated prediction models for Ba, Co, Cu, Mn and Ni to be developed, whereas DRS-calibrated methods afforded more accurate prediction of Ba and Mn contents, and magnetic susceptibility-calibrated methods of Co and Ni contents. The correlation between PTEs and free iron contents, and their spatial pattern, testifies to the goodness of the proposed methods for predicting the contents of potentially toxic elements in soils.en
dc.description.affiliationSão Paulo State University (UNESP) Faculdade de Ciências Agrárias e Veterinárias Research Group CSME - Soil Characterization for Specific Management, Campus de Jaboticabal, Via de Acesso Prof. Paulo Donato Castellane, s/n°
dc.description.affiliationDepartamento de Agronomía Universidad de Córdoba, Edificio C4, Campus de Rabanales
dc.description.affiliationLuiz de Queiroz College of Agriculture (ESALQ) University of Sao Paulo (USP), CP 09
dc.description.affiliationAgrarian Sciences Center University of Marília, Higyno Muzzy Filho Avenue, 1001
dc.description.affiliationUnespSão Paulo State University (UNESP) Faculdade de Ciências Agrárias e Veterinárias Research Group CSME - Soil Characterization for Specific Management, Campus de Jaboticabal, Via de Acesso Prof. Paulo Donato Castellane, s/n°
dc.format.extent503-515
dc.identifierhttp://dx.doi.org/10.1016/j.catena.2018.02.030
dc.identifier.citationCatena, v. 165, p. 503-515.
dc.identifier.doi10.1016/j.catena.2018.02.030
dc.identifier.file2-s2.0-85043388337.pdf
dc.identifier.issn0341-8162
dc.identifier.scopus2-s2.0-85043388337
dc.identifier.urihttp://hdl.handle.net/11449/175997
dc.language.isoeng
dc.relation.ispartofCatena
dc.relation.ispartofsjr1,246
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectChemometrics
dc.subjectGoethite
dc.subjectHeavy metals
dc.subjectHematite
dc.subjectPedotransfer function
dc.subjectSpatial variability
dc.titlePredicting potentially toxic elements in tropical soils from iron oxides, magnetic susceptibility and diffuse reflectance spectraen
dc.typeArtigo

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