Application of chemometric methods in the evaluation of chemical and spectroscopic data on organic matter from Oxisols in sewage sludge applications

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dc.contributor.authordos Santos, Larissa Macedo
dc.contributor.authorSimoes, Marcelo Luiz
dc.contributor.authorde Melo, Wanderley Jose [UNESP]
dc.contributor.authorMartin-Neto, Ladislau
dc.contributor.authorPereira-Filho, Edenir Rodrigues
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
dc.date.accessioned2014-05-20T13:17:42Z
dc.date.available2014-05-20T13:17:42Z
dc.date.issued2010-02-15
dc.description.abstractChemometric methods can contribute to soil research by permitting the extraction of more information from the data. The aim of this work was to use Principal Component Analysis to evaluate data obtained through chemical and spectroscopic methods on the changes in the humification process of soil organic matter from two tropical soils after sewage sludge application. In this case, humic acids extracted from Typic Eutrorthox and Typic Haplorthox soils with and without sewage sludge application for 7 consecutive years were studied. The results obtained for all of the samples and methods showed two clusters: samples extracted from the two soil types. These expected results indicated the textural difference between the two soils was more significant than the differences between treatments (control and sewage sludge application) or between depths. In this case, an individual chemometric treatment was made for each type of soil. It was noted that the characterization of the humic acids extracted from soils with and without sewage sludge application after 7 consecutive years using several methods supplies important results about changes in the humification degree of soil organic matter, These important result obtained by Principal Component Analysis justify further research using these methods to characterize the changes in the humic acids extracted from sewage sludge-amended soils. (C) 2009 Elsevier B.V. All rights reserved.en
dc.description.affiliationUniversidade Federal de São Carlos (UFSCar), Dept Quim, BR-13565905 São Carlos, SP, Brazil
dc.description.affiliationUniv Estadual Paulista, Dept Tecnol, BR-14884900 Jaboticabal, SP, Brazil
dc.description.affiliationUniv São Paulo, Inst Quim São Carlos, BR-13560970 São Carlos, SP, Brazil
dc.description.affiliationEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA) Instrumentacao Agropecuaria, BR-13560970 São Carlos, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Tecnol, BR-14884900 Jaboticabal, SP, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipCEPOF
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIdFAPESP: 99/09133-4
dc.description.sponsorshipIdCEPOF: 98/14270-8
dc.description.sponsorshipIdCNPq: 476350/2004-2
dc.format.extent121-127
dc.identifierhttp://dx.doi.org/10.1016/j.geoderma.2009.12.006
dc.identifier.citationGeoderma. Amsterdam: Elsevier B.V., v. 155, n. 1-2, p. 121-127, 2010.
dc.identifier.doi10.1016/j.geoderma.2009.12.006
dc.identifier.issn0016-7061
dc.identifier.urihttp://hdl.handle.net/11449/4073
dc.identifier.wosWOS:000274504300015
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofGeoderma
dc.relation.ispartofjcr3.740
dc.relation.ispartofsjr1,717
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectChemometricen
dc.subjectPCAen
dc.subjectHumification degreeen
dc.subjectsoil organic matteren
dc.subjectSewage sludgeen
dc.titleApplication of chemometric methods in the evaluation of chemical and spectroscopic data on organic matter from Oxisols in sewage sludge applicationsen
dc.typeResumo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.author.orcid0000-0003-0608-0278[5]
unesp.author.orcid0000-0003-2683-0347[3]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências Agrárias e Veterinárias, Jaboticabalpt

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