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| 14. |  | MARQUES JÚNIOR, H. R.; JULIANO, R. S.; ABDO, Y. Bovino pantaneiro: retrospectiva histórica e fomento à raça. Experiência da parceria entre Embrapa Pantanal, Agropecuária Preservação da Fauna e Universidade Católica Dom Bosco. In: Multitemas, Campo Grande, MS, n. 42, p. 71-86, jul./dez., 2012. Título em inglês: Pantanal cattle: historical retrospective and development of the breed. Experience of the partnership between Embrapa Pantanal, Agropecuária Preservação da Fauna of the Fauna and Universidade Católica Dom Bosco.| Biblioteca(s): Embrapa Pantanal. |
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| 20. | | MARQUES JUNIOR, J.; LEPSCH, F.; PEREIRA, G. T. Verificação estatística dos limites de solos e de superficies geomórficas na região de Monte Alto, SP. IN: CONGRESSO BRASILEIRO DE CIÊNÇIA DO SOLO, 25., 1995, Viçosa, MG. Resumos expandidos. Viçosa: UFV, 1995. v.3, p. 1486-1488.| Biblioteca(s): Embrapa Tabuleiros Costeiros. |
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| Registros recuperados : 119 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
20/11/2017 |
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Data da última atualização: |
20/11/2017 |
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Autoria: |
FERNANDES, K. L.; RIBON, A. A.; MARQUES JUNIOR, J.; BAHIA, A. S. R. de S.; TAVARES FILHO, J. |
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Afiliação: |
Kathleen Lourenço Fernandes, Faculdade de Ciências Agrárias e Veterinárias/Campus de Jaboticabal/Universidade Estadual Paulista Júlio de Mesquita Filho -UNESP; Adriana Aparecida Ribon, Universidade Estadual de Goiás/Campus Palmeiras de Goiás; josé Marques Junior, Faculdade de Ciências Agrárias e Veterinárias/Campus de Jaboticabal/Universidade Estadual Paulista Júlio de Mesquita Filho -UNESP; Angélica Santos Rabelo de Souza Bahia, Faculdade de Ciências Agrárias e Veterinárias/Campus de Jaboticabal/Universidade Estadual Paulista Júlio de Mesquita Filho -UNESP; João Tavares Filho, Universidade Estadual de Londrina. |
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Título: |
Magnetic and spectral signatures of Cerrado soils in the state of Goiás, Brazil. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 52, n. 10, p. 923-932, out. 2017. |
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Idioma: |
Inglês |
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Notas: |
Título em português: Assinaturas magnéticas e espectrais de solos do Cerrado de Goiás. |
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Conteúdo: |
The objective of this work was to estimate the iron oxide contents (hematite and goethite) and to characterize the color and the spectral and magnetic signatures of Cerrado soils in the state of Goiás, Brazil. Six Oxisols and one Inceptisol were studied. Spectral and magnetic signatures were determined by diffuse reflectance spectroscopy (DRS) and magnetic susceptibility, respectively. Then, the spectral curves and the second derivative calculations were used to determine hematite and goethite contents, as well as soil color after conversion into tristimulus values. Hematite and goethite contents were also obtained by x-ray diffractometry, and soil color was also defined in the field (Munsell color chart). The values for the isomorphic substitution of iron by aluminum and the degree of redness were also determined. DRS can be used to estimate hematite and goethite contents, as well as the color of Cerrado soils in the state of Goiás. The spectral signature can point out the main soil properties related to the contents of organic matter, iron oxides, kaolinite, and gibbsite. The magnetic signature, characteristic of soils rich in iron oxides (hematite and goethite), shows the predominance of pedogenic minerals. |
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Palavras-Chave: |
Espectroscopia de reflectância difusa; Goethita; Hematita; Magnetic susceptibility; Suscetibilidade magnética. |
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Thesagro: |
Latossolo. |
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Thesaurus NAL: |
Goethite; Hematite; Oxisols; Reflectance spectroscopy. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/166992/1/Magnetic-and-spectral-signatures-of-cerrado-soil.pdf
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Marc: |
LEADER 02197naa a2200301 a 4500
001 2080152
005 2017-11-20
008 2017 bl uuuu u00u1 u #d
100 1 $aFERNANDES, K. L.
245 $aMagnetic and spectral signatures of Cerrado soils in the state of Goiás, Brazil.
260 $c2017
500 $aTítulo em português: Assinaturas magnéticas e espectrais de solos do Cerrado de Goiás.
520 $aThe objective of this work was to estimate the iron oxide contents (hematite and goethite) and to characterize the color and the spectral and magnetic signatures of Cerrado soils in the state of Goiás, Brazil. Six Oxisols and one Inceptisol were studied. Spectral and magnetic signatures were determined by diffuse reflectance spectroscopy (DRS) and magnetic susceptibility, respectively. Then, the spectral curves and the second derivative calculations were used to determine hematite and goethite contents, as well as soil color after conversion into tristimulus values. Hematite and goethite contents were also obtained by x-ray diffractometry, and soil color was also defined in the field (Munsell color chart). The values for the isomorphic substitution of iron by aluminum and the degree of redness were also determined. DRS can be used to estimate hematite and goethite contents, as well as the color of Cerrado soils in the state of Goiás. The spectral signature can point out the main soil properties related to the contents of organic matter, iron oxides, kaolinite, and gibbsite. The magnetic signature, characteristic of soils rich in iron oxides (hematite and goethite), shows the predominance of pedogenic minerals.
650 $aGoethite
650 $aHematite
650 $aOxisols
650 $aReflectance spectroscopy
650 $aLatossolo
653 $aEspectroscopia de reflectância difusa
653 $aGoethita
653 $aHematita
653 $aMagnetic susceptibility
653 $aSuscetibilidade magnética
700 1 $aRIBON, A. A.
700 1 $aMARQUES JUNIOR, J.
700 1 $aBAHIA, A. S. R. de S.
700 1 $aTAVARES FILHO, J.
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 52, n. 10, p. 923-932, out. 2017.
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