Please use this identifier to cite or link to this item:
http://acervodigital.unesp.br/handle/11449/129820
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Camargo, Livia Arantes | - |
dc.contributor.author | Marques Júnior, José | - |
dc.contributor.author | Barron, Vidal | - |
dc.contributor.author | Ferracciu Alleoni, Luis Reynaldo | - |
dc.contributor.author | Barbosa, Ronny Sobreira | - |
dc.contributor.author | Pereira, Gener Tadeu | - |
dc.date.accessioned | 2015-10-22T07:14:41Z | - |
dc.date.accessioned | 2016-10-25T21:16:33Z | - |
dc.date.available | 2015-10-22T07:14:41Z | - |
dc.date.available | 2016-10-25T21:16:33Z | - |
dc.date.issued | 2015-08-01 | - |
dc.identifier | http://www.sciencedirect.com/science/article/pii/S0016706115001044 | - |
dc.identifier.citation | Geoderma. Amsterdam: Elsevier Science Bv, v. 251, p. 124-132, 2015. | - |
dc.identifier.issn | 0016-7061 | - |
dc.identifier.uri | http://hdl.handle.net/11449/129820 | - |
dc.identifier.uri | http://acervodigital.unesp.br/handle/11449/129820 | - |
dc.description.abstract | Diffuse reflectance spectroscopy (DRS) provides a rapid, non-destructive, less expensive and sustainable complement to conventional methods of soil analysis. This study aims to assess the DRS ability to predict contents of clay, iron oxide and adsorbed phosphate (Pads), characterizing their spatial variability in Oxisols from Brazil. Soil samples collected from three geomorphic surfaces were scanned in the visible and near infrared spectral range. Moreover, chemometric calibration was obtained through partial least-squares regression (PLSR). Then, spatial distribution maps of the attributes were constructed using predicted values from calibrated models through geostatistical methods. The best accuracy of prediction models (residual prediction deviation >2.0) for clay, extractable Fe by dithionite-citrate-bicarbonate and hematite was obtained within the visible region (380-800 nm), and for adsorbed phosphate within the visible near infrared (380-2300 nm). Predicted values of these attributes had low error (<10%) with the exception of goethite, and enabled building maps similar to those with measured values, demonstrating the DRS importance for clay, iron oxide and adsorbed phosphate mapping of large areas and at detailed scale. (C) 2015 Elsevier B.V. All rights reserved. | en |
dc.description.sponsorship | Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) | - |
dc.description.sponsorship | Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) | - |
dc.format.extent | 124-132 | - |
dc.language.iso | eng | - |
dc.publisher | Elsevier B.V. | - |
dc.source | Web of Science | - |
dc.subject | Goethite | en |
dc.subject | Hematite | en |
dc.subject | PLSR | en |
dc.subject | Diffuse reflectance spectroscopy | en |
dc.subject | Geostatistics | en |
dc.subject | Chemometrics | en |
dc.title | Mapping of clay, iron oxide and adsorbed phosphate in Oxisols using diffuse reflectance spectroscopy | en |
dc.type | outro | - |
dc.contributor.institution | Universidade Estadual Paulista (UNESP) | - |
dc.contributor.institution | Universidad de Córdoba | - |
dc.contributor.institution | Universidade de São Paulo (USP) | - |
dc.contributor.institution | Universidade Federal do Piauí (UFPI) | - |
dc.description.affiliation | Departamento de Agronomía, Universidad de Córdoba, Edificio C4, Campus de Rabanales, 14071 Córdoba, Spain | - |
dc.description.affiliation | College of Agriculture Luiz de Queiroz (ESALQ), University of Sao Paulo (USP), CP 09, 13418-900 Piracicaba SP, Brazil | - |
dc.description.affiliation | Universidade Federal do Piauí, Campus Professora Cinobelina Elvas, Rodovia Municipal Bom Jesus — Viana, km 01, Planalto Horizonte, s/n°, 64900-000 Bom Jesus, PI, Brazil | - |
dc.description.affiliationUnesp | Faculdade de Ciências Agrárias e Veterinárias, Univ Estadual Paulista, Campus de Jaboticabal, Via de Acesso Prof. Paulo Donato Castellane, s/n°, 14884-900 Jaboticabal, SP, Brazil | - |
dc.identifier.doi | http://dx.doi.org/10.1016/j.geoderma.2015.03.027 | - |
dc.identifier.wos | WOS:000353751400012 | - |
dc.rights.accessRights | Acesso restrito | - |
dc.relation.ispartof | Geoderma | - |
Appears in Collections: | Artigos, TCCs, Teses e Dissertações da Unesp |
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.