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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental; Embrapa Solos; Embrapa Trigo. |
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Data corrente: |
13/04/1994 |
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Data da última atualização: |
02/03/2006 |
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Autoria: |
KLAMT, E. |
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Título: |
Soil - landscape relationships in the depressao central of southern Brazil. |
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Ano de publicação: |
1973 |
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Fonte/Imprenta: |
Madison: University of Wisconsin, 1973. |
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Páginas: |
147p. |
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Descrição Física: |
il. |
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Idioma: |
Inglês |
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Notas: |
Ph.D. Thesis. |
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Conteúdo: |
Soil mapping has been considered difficult in certain areas of the Depressao Central of the State of Rio Grande do Sul in southern Brazil, due to intricate soil distribution patterns. The present research indicates that such complexity is related to: the existence of unconsolidated sedimentary deposits which overlie Gondwanan and Precambrian age rocks, which were not recognized by earlier workers; to the complex stratigraphic sequence of the region and to the action of processes of landscape formation and destruction. The morphology of the sedimentary deposits and soils developed from them suggests that the sediments were deposited into bays or lakes associated with one or more high sea levels during the Pleistocene, and/or are related to pedimentation and floodplain aggradation processes, which also occurred in Pleistocene time. The morphological characteristics of the soils developed from the Quaternary sediments at three distinct elevations show clear increases in weathering from the lower toward the higher positions in the landscape. Quantitative mineralogical analysis of these pedons show increasing amount of iron oxides, amorphous materials and kaolinite and halloysite in the same sequence. These data can be related to times of sediment deposition and subsequent soil development, if it is assumed that the environmental conditions as well as the physical and chemical properties of the sediments were similar at the time of deposition. In support of this assumption is the similar position of the soils.......... MenosSoil mapping has been considered difficult in certain areas of the Depressao Central of the State of Rio Grande do Sul in southern Brazil, due to intricate soil distribution patterns. The present research indicates that such complexity is related to: the existence of unconsolidated sedimentary deposits which overlie Gondwanan and Precambrian age rocks, which were not recognized by earlier workers; to the complex stratigraphic sequence of the region and to the action of processes of landscape formation and destruction. The morphology of the sedimentary deposits and soils developed from them suggests that the sediments were deposited into bays or lakes associated with one or more high sea levels during the Pleistocene, and/or are related to pedimentation and floodplain aggradation processes, which also occurred in Pleistocene time. The morphological characteristics of the soils developed from the Quaternary sediments at three distinct elevations show clear increases in weathering from the lower toward the higher positions in the landscape. Quantitative mineralogical analysis of these pedons show increasing amount of iron oxides, amorphous materials and kaolinite and halloysite in the same sequence. These data can be related to times of sediment deposition and subsequent soil development, if it is assumed that the environmental conditions as well as the physical and chemical properties of the sediments were similar at the time of deposition. In support of this assumption is th... Mostrar Tudo |
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Palavras-Chave: |
Brasil; Caracteristica; Characteristic; Edafologia; Edaphology; Genese; Genesis; Morfologia; Morphology; Regiao sul; Sedimentation; Tese. |
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Thesagro: |
Geomorfologia; Sedimentação; Solo. |
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Thesaurus Nal: |
geomorphology; soil. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02360nam a2200337 a 4500
001 1401544
005 2006-03-02
008 1973 bl uuuu m 00u1 u #d
100 1 $aKLAMT, E.
245 $aSoil - landscape relationships in the depressao central of southern Brazil.
260 $aMadison: University of Wisconsin$c1973
300 $a147p.$cil.
500 $aPh.D. Thesis.
520 $aSoil mapping has been considered difficult in certain areas of the Depressao Central of the State of Rio Grande do Sul in southern Brazil, due to intricate soil distribution patterns. The present research indicates that such complexity is related to: the existence of unconsolidated sedimentary deposits which overlie Gondwanan and Precambrian age rocks, which were not recognized by earlier workers; to the complex stratigraphic sequence of the region and to the action of processes of landscape formation and destruction. The morphology of the sedimentary deposits and soils developed from them suggests that the sediments were deposited into bays or lakes associated with one or more high sea levels during the Pleistocene, and/or are related to pedimentation and floodplain aggradation processes, which also occurred in Pleistocene time. The morphological characteristics of the soils developed from the Quaternary sediments at three distinct elevations show clear increases in weathering from the lower toward the higher positions in the landscape. Quantitative mineralogical analysis of these pedons show increasing amount of iron oxides, amorphous materials and kaolinite and halloysite in the same sequence. These data can be related to times of sediment deposition and subsequent soil development, if it is assumed that the environmental conditions as well as the physical and chemical properties of the sediments were similar at the time of deposition. In support of this assumption is the similar position of the soils..........
650 $ageomorphology
650 $asoil
650 $aGeomorfologia
650 $aSedimentação
650 $aSolo
653 $aBrasil
653 $aCaracteristica
653 $aCharacteristic
653 $aEdafologia
653 $aEdaphology
653 $aGenese
653 $aGenesis
653 $aMorfologia
653 $aMorphology
653 $aRegiao sul
653 $aSedimentation
653 $aTese
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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Registro Completo
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
16/06/2010 |
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Data da última atualização: |
18/07/2018 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
PEREIRA, I. A. da S.; GUIMARAES, L. J. M. |
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Afiliação: |
IGHOR AUGUSTO DA SILVA PEREIRA, BOLSISTA; LAURO JOSE MOREIRA GUIMARAES, CNPMS. |
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Título: |
Caracterização de linhagens e híbridos de milho quanto à eficiência de uso de nitrogênio. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
In: SEMINÁRIO DE INICIAÇÃO CIENTÍFICA PIBIC/BIC JÚNIOR, 1., 2010, Sete Lagoas. [Trabalhos apresentados]. Sete Lagoas: Embrapa Milho e Sorgo, 2010. |
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Descrição Física: |
1 CD-ROM. |
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Idioma: |
Português |
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Thesagro: |
Melhoramento; Milho; Seleção. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/29566/1/Caracterizacao-linhagens.pdf
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Marc: |
LEADER 00600nam a2200157 a 4500
001 1855238
005 2018-07-18
008 2010 bl uuuu u00u1 u #d
100 1 $aPEREIRA, I. A. da S.
245 $aCaracterização de linhagens e híbridos de milho quanto à eficiência de uso de nitrogênio.$h[electronic resource]
260 $aIn: SEMINÁRIO DE INICIAÇÃO CIENTÍFICA PIBIC/BIC JÚNIOR, 1., 2010, Sete Lagoas. [Trabalhos apresentados]. Sete Lagoas: Embrapa Milho e Sorgo$c2010
300 $c1 CD-ROM.
650 $aMelhoramento
650 $aMilho
650 $aSeleção
700 1 $aGUIMARAES, L. J. M.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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