title: Discrimination of land-use types in a catchment by energy dispersive X-ray fluorescence and principal component analysis.
abstract: Differences in composition and chemical elemental concentration are important information for soil samples classification. The objective of this study is to present a direct methodology, that is non-destructive and without complex sample preparation, in order to discriminate different land-use types and soil degradation, employing energy dispersive X-ray fluorescence and multivariate analysis. Sample classification results from principal component analysis, utilizing spectral data and elemental concentration values demonstrate that the methodology is efficient to discriminate different land-use types.
authors.affiliation: Physics Department, Universidade Estadual do Centro Oeste, Zip Code 85015-430, P.O. box 3010, Guarapuava, Paraná, Brazil. fmelquiades@unicentro.br
authors.forename: F L
authors.initials: FL
authors.lastname: Melquiades
authors.forename: L F S
authors.initials: LF
authors.lastname: Andreoni
authors.forename: E L
authors.initials: EL
authors.lastname: Thomaz
mesh_terms: D000465:Algorithms; D002391:Catchment Area, Health; D003627:Data Interpretation, Statistical; D004784:Environmental Monitoring / Q000379:methods*; D025341:Principal Component Analysis; D012987:Soil / Q000032:analysis* / Q000737:chemistry*; D013052:Spectrometry, X-Ray Emission / Q000379:methods*
chemical_list: D012987:Soil