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Registro Completo |
Biblioteca(s): |
Embrapa Semiárido. |
Data corrente: |
01/02/2024 |
Data da última atualização: |
01/02/2024 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
BARBOSA, G. M. N.; MARQUES, E. A. G.; KER, J. C.; ASSIS, I. R. de; CUNHA, T. J. F.; SOUZA, L. da S. |
Afiliação: |
GUSTAVO MAGALHÃES NUNES BARBOSA, Universidade Federal de Viçosa; EDUARDO ANTONIO GOMES MARQUES, Universidade Federal de Viçosa; JOÃO CARLOS KER, Universidade Federal de Viçosa; IGOR RODRIGUES DE ASSIS, Universidade Federal de Viçosa; TONY JARBAS FERREIRA CUNHA, CPATSA; LUCIANO DA SILVA SOUZA, Universidade Federal do Recôncavo da Bahia, Cruz das Almas, Bahia. |
Título: |
Geotechnical properties of some kaolinite-rich Brazilian Vertisols. |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
Revista Brasileira de Ciência do Solo, v. 45, e0210022, 2021. |
DOI: |
https://doi.org/10.36783/18069657rbcs20210022 |
Idioma: |
Inglês |
Conteúdo: |
Vertisols presenting kaolinite codominance or prevalence were already reported in several countries worldwide. However, the literature has few studies focused on investigating the influence of this clay mineral in soil geotechnical behavior. This study aimed to carry out the characterization of Vertisols in Bahia State, Brazil, to understand the influence of physical, chemical, and mineralogical properties on their geotechnical behavior, as these soils have high natural fertility and have been used for agricultural activity, but with great risk due to their physical and geotechnical properties. Six Vertisols were selected, three located in Juazeiro County (Semiarid region) and the other three in Recôncavo region. Geotechnical characterization of selected soils was carried out in their respective diagnostic horizons by determining properties such as granulometric curve, Atterberg limits, clay activity, linear expansion coefficient, compaction capacity, cohesion (c), and internal friction angle (ϕ) of saturated soils. Soil expansion potential was associated with expansive clay contents and clay content in each soil sample. The best soil compaction efficiency was observed for kaolinitic Vertisol, which presented greater void ratio reduction and higher density due to moisture increase. In addition, c increased as kaolinite content also increased and decreased as clay content increased in soils presenting similar mineralogy. On the other hand, ϕ was influenced mainly by granulometry since higher sand and gravel levels enabled higher ϕ, regardless of clay type. MenosVertisols presenting kaolinite codominance or prevalence were already reported in several countries worldwide. However, the literature has few studies focused on investigating the influence of this clay mineral in soil geotechnical behavior. This study aimed to carry out the characterization of Vertisols in Bahia State, Brazil, to understand the influence of physical, chemical, and mineralogical properties on their geotechnical behavior, as these soils have high natural fertility and have been used for agricultural activity, but with great risk due to their physical and geotechnical properties. Six Vertisols were selected, three located in Juazeiro County (Semiarid region) and the other three in Recôncavo region. Geotechnical characterization of selected soils was carried out in their respective diagnostic horizons by determining properties such as granulometric curve, Atterberg limits, clay activity, linear expansion coefficient, compaction capacity, cohesion (c), and internal friction angle (ϕ) of saturated soils. Soil expansion potential was associated with expansive clay contents and clay content in each soil sample. The best soil compaction efficiency was observed for kaolinitic Vertisol, which presented greater void ratio reduction and higher density due to moisture increase. In addition, c increased as kaolinite content also increased and decreased as clay content increased in soils presenting similar mineralogy. On the other hand, ϕ was influenced mainly by granulome... Mostrar Tudo |
Palavras-Chave: |
Caulinita; Propriedades geotécnicas; Vertissolos brasileiros. |
Thesagro: |
Solo. |
Thesaurus Nal: |
Kaolinite. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1161544/1/Geotechnical-properties-of-some-2021.pdf
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Marc: |
LEADER 02344naa a2200253 a 4500 001 2161544 005 2024-02-01 008 2021 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.36783/18069657rbcs20210022$2DOI 100 1 $aBARBOSA, G. M. N. 245 $aGeotechnical properties of some kaolinite-rich Brazilian Vertisols.$h[electronic resource] 260 $c2021 520 $aVertisols presenting kaolinite codominance or prevalence were already reported in several countries worldwide. However, the literature has few studies focused on investigating the influence of this clay mineral in soil geotechnical behavior. This study aimed to carry out the characterization of Vertisols in Bahia State, Brazil, to understand the influence of physical, chemical, and mineralogical properties on their geotechnical behavior, as these soils have high natural fertility and have been used for agricultural activity, but with great risk due to their physical and geotechnical properties. Six Vertisols were selected, three located in Juazeiro County (Semiarid region) and the other three in Recôncavo region. Geotechnical characterization of selected soils was carried out in their respective diagnostic horizons by determining properties such as granulometric curve, Atterberg limits, clay activity, linear expansion coefficient, compaction capacity, cohesion (c), and internal friction angle (ϕ) of saturated soils. Soil expansion potential was associated with expansive clay contents and clay content in each soil sample. The best soil compaction efficiency was observed for kaolinitic Vertisol, which presented greater void ratio reduction and higher density due to moisture increase. In addition, c increased as kaolinite content also increased and decreased as clay content increased in soils presenting similar mineralogy. On the other hand, ϕ was influenced mainly by granulometry since higher sand and gravel levels enabled higher ϕ, regardless of clay type. 650 $aKaolinite 650 $aSolo 653 $aCaulinita 653 $aPropriedades geotécnicas 653 $aVertissolos brasileiros 700 1 $aMARQUES, E. A. G. 700 1 $aKER, J. C. 700 1 $aASSIS, I. R. de 700 1 $aCUNHA, T. J. F. 700 1 $aSOUZA, L. da S. 773 $tRevista Brasileira de Ciência do Solo$gv. 45, e0210022, 2021.
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Embrapa Semiárido (CPATSA) |
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Registro Completo
Biblioteca(s): |
Embrapa Algodão; Embrapa Semiárido. |
Data corrente: |
24/09/2008 |
Data da última atualização: |
24/08/2022 |
Tipo da produção científica: |
Artigo em Anais de Congresso / Nota Técnica |
Autoria: |
MALTA, D. S. H.; SANTOS, D. B. dos; HOLANDA FILHO, R. S. F. de; LIMA, I. S. de; DRUMOND, M. A.; ANJOS, J. B. dos; MILANI, M. |
Afiliação: |
Domingos Sávio Henriques Malta, EAFSB; Delfran Batista dos Santos, EAFSB; Roberto Silvio Frota de Holanda Filho, UFCG; Ivânia Soares de Lima, UNEB; MARCOS ANTONIO DRUMOND, CPATSA; JOSE BARBOSA DOS ANJOS, CPATSA; Maira Milani, CNPA. |
Título: |
Observações do comprimento e número de frutos do primeiro cacho de três genótipos de mamoneira em Senhor do Bonfim, BA. |
Ano de publicação: |
2008 |
Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE MAMONA: ENERGIA E RICINOQUÍMICA, 3., 2008, Salvador. Anais... Salvador: SEAGRI: Embrapa Algodão, 2008 |
Descrição Física: |
1 CD-ROM. |
Idioma: |
Português |
Conteúdo: |
Objetivou-se com este trabalho estimar a variabilidade do comprimento do primeiro cacho, do número de frutos. |
Palavras-Chave: |
BRS 149 Nordestina; BRS 188 Paraguaçu; BRS Nordestina; BRS Paraguaçu. |
Thesagro: |
Fruto; Genótipo; Mamona; Ricinus Communis; Variedade. |
Thesaurus NAL: |
Fruits; Genotype; Varieties. |
Categoria do assunto: |
-- X Pesquisa, Tecnologia e Engenharia |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/CPATSA/38904/1/OPB1916.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/CNPA-2009-09/21985/1/MC-13.pdf
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Marc: |
LEADER 01154nam a2200337 a 4500 001 1160424 005 2022-08-24 008 2008 bl uuuu u00u1 u #d 100 1 $aMALTA, D. S. H. 245 $aObservações do comprimento e número de frutos do primeiro cacho de três genótipos de mamoneira em Senhor do Bonfim, BA.$h[electronic resource] 260 $aIn: CONGRESSO BRASILEIRO DE MAMONA: ENERGIA E RICINOQUÍMICA, 3., 2008, Salvador. Anais... Salvador: SEAGRI: Embrapa Algodão$c2008 300 $c1 CD-ROM. 520 $aObjetivou-se com este trabalho estimar a variabilidade do comprimento do primeiro cacho, do número de frutos. 650 $aFruits 650 $aGenotype 650 $aVarieties 650 $aFruto 650 $aGenótipo 650 $aMamona 650 $aRicinus Communis 650 $aVariedade 653 $aBRS 149 Nordestina 653 $aBRS 188 Paraguaçu 653 $aBRS Nordestina 653 $aBRS Paraguaçu 700 1 $aSANTOS, D. B. dos 700 1 $aHOLANDA FILHO, R. S. F. de 700 1 $aLIMA, I. S. de 700 1 $aDRUMOND, M. A. 700 1 $aANJOS, J. B. dos 700 1 $aMILANI, M.
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