Chemical And Electrochemical Properties Of An Oxisol-ultisol Transition In The State Of São Paulo, Brazil

dc.creatorCoscione A.R.
dc.creatorMoniz A.C.
dc.creatorPerez D.V.
dc.creatorFerreira M.M.C.
dc.creatorCamargo O.A.
dc.date2005
dc.date2015-06-26T14:08:15Z
dc.date2015-11-26T14:07:58Z
dc.date2015-06-26T14:08:15Z
dc.date2015-11-26T14:07:58Z
dc.date.accessioned2018-03-28T21:08:34Z
dc.date.available2018-03-28T21:08:34Z
dc.identifier
dc.identifierGeoderma. , v. 126, n. 3-4, p. 375 - 388, 2005.
dc.identifier167061
dc.identifier10.1016/j.geoderma.2004.10.005
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-18044368518&partnerID=40&md5=552c94717e2ab8e1347ca7301c0cee09
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/93532
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/93532
dc.identifier2-s2.0-18044368518
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1240890
dc.descriptionSoil formation factors such as lateral and base water flows promote the Oxisol-Ultisol transformation on hillslopes in colluvium material with oxic properties. Chemical and electrochemical processes occur simultaneously with the morphological transformation of the soil structure from very fine granular to blocky soil. Statistical analysis techniques, such as principal component analysis (PCA) and hierarchical cluster analysis (HCA), were used to analyze the data collected from two sites in the state of São Paulo, Brazil, allowing a comprehensive description of the processes that entailed the transformation of an oxic horizon to a kandic horizon. The modeling power and the discriminating power from the soft independent modeling of class analogy (SIMCA) method were employed to find which attributes were essential to explain the transformation of an oxic into an argillic horizon. The following attributes were used to describe the processes in the toposequences studied: (a) index of silica reactivity (ISR); (b) index of silica saturation (ISS); (c) ratio of iron extracted with ammonium oxalate, DCB and H2SO4; (d) ratio of aluminum extracted with ammonium oxalate, DCB and H2SO 4; (e) specific surface area (SSA); (f) point of zero salt effect (PZSE); and (g) surface net charge (σ). © 2004 Elsevier B.V. All rights reserved.
dc.description126
dc.description3-4
dc.description375
dc.description388
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dc.languageen
dc.publisher
dc.relationGeoderma
dc.rightsfechado
dc.sourceScopus
dc.titleChemical And Electrochemical Properties Of An Oxisol-ultisol Transition In The State Of São Paulo, Brazil
dc.typeArtículos de revistas


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