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Registro Completo |
Biblioteca(s): |
Embrapa Solos. |
Data corrente: |
16/05/2018 |
Data da última atualização: |
11/11/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
COSTA, E. U. C. da; SANTOS, J. C. B. dos; AZEVEDO, A. C. de; ARAUJO FILHO, J. C. de; CORRÊA, M. M.; NEVES, L. V. de M. W.; VIDAL-TORRADO, P.; SOUZA-JÚNIOR, V. S. de. |
Afiliação: |
EDIVAN UCHÔA CAVALCANTI DA COSTA, UFRPE; JEAN CHEYSON BARROS DOS SANTOS, UFRPE; ANTONIO CARLOS DE AZEVEDO, ESALQ-USP; JOSE COELHO DE ARAUJO FILHO, CNPS; MARCELO METRI CORRÊA, UFRPE; LAÉRCIO VIEIRA DE MELO WANDERLEY NEVES, UFRPE; PABLO VIDAL-TORRADO, ESALQ-USP; VALDOMIRO SEVERINO DE SOUZA-JÚNIOR, UFRPE. |
Título: |
Mineral alteration and genesis of Al-rich soils derived from conglomerate deposits in Cabo Basin, NE Brazil. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
Catena, v. 167, p. 198-211, Aug. 2018. |
DOI: |
https://doi.org/10.1016/j.catena.2018.04.039 |
Idioma: |
Inglês |
Conteúdo: |
In the Cabo Basin, NE Brazil, conglomerates have given rise to soils with attributes that are rarely observed in humid tropical climates and remain relatively unknown within the scientific community. These soils have high levels of Al in the exchangeable phase, diminishing their agricultural and environmental potential in an underdeveloped region of great socioeconomic importance. This paper presents the mineralogy and genesis of soils derived from conglomerates on a slope in the Cabo Basin, with the aim of meeting the demand for studies on Al-rich soils. Three soils were classified, morphologically described and sampled for the accomplishment of chemical, physical and mineralogical analyses, including the main exchangeable cations content, mineralogy of the sand, silt and clay fraction, differentiation of the Fe and Al forms, mineral micromorphology and chemical composition of mineral species. In addition, chemical and physical attributes were used in multivariate analyses. The soil mineralogy is associated with the weathering evolution of three mineralogical zones identified in the Cr horizons. Pathways of alteration followed by feldspars and micas resulted in kaolinite, smectite and hydroxy-Al interlayered smectite formation (argilification). The susceptibility of the conglomerate to weathering, constant releases of Al from the structure of aluminous minerals, low contents of exchangeable bases and consequent low pH values (<5.3) were associated with high levels of exchangeable Al. At the highest position on the slope, a C/Cr transitional horizon provided evidence of the pedogenesis advance on the Cr horizon. Pedogenetic processes then resulted in morphological, physical and mineralogical differentiation between the A and Bt horizons. In addition, a cluster analysis showed similarities between attributes of the Bt and Cr horizons due to their genetic relationships. MenosIn the Cabo Basin, NE Brazil, conglomerates have given rise to soils with attributes that are rarely observed in humid tropical climates and remain relatively unknown within the scientific community. These soils have high levels of Al in the exchangeable phase, diminishing their agricultural and environmental potential in an underdeveloped region of great socioeconomic importance. This paper presents the mineralogy and genesis of soils derived from conglomerates on a slope in the Cabo Basin, with the aim of meeting the demand for studies on Al-rich soils. Three soils were classified, morphologically described and sampled for the accomplishment of chemical, physical and mineralogical analyses, including the main exchangeable cations content, mineralogy of the sand, silt and clay fraction, differentiation of the Fe and Al forms, mineral micromorphology and chemical composition of mineral species. In addition, chemical and physical attributes were used in multivariate analyses. The soil mineralogy is associated with the weathering evolution of three mineralogical zones identified in the Cr horizons. Pathways of alteration followed by feldspars and micas resulted in kaolinite, smectite and hydroxy-Al interlayered smectite formation (argilification). The susceptibility of the conglomerate to weathering, constant releases of Al from the structure of aluminous minerals, low contents of exchangeable bases and consequent low pH values (<5.3) were associated with high levels of exchan... Mostrar Tudo |
Thesagro: |
Alumínio; Hidróxido de Alumínio; Solo. |
Thesaurus Nal: |
Aluminum hydroxide; Exchangeable aluminum; Hydroxy-interlayered minerals; Saprolite; Smectite; Soil. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
Marc: |
LEADER 02897naa a2200325 a 4500 001 2091480 005 2021-11-11 008 2018 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1016/j.catena.2018.04.039$2DOI 100 1 $aCOSTA, E. U. C. da 245 $aMineral alteration and genesis of Al-rich soils derived from conglomerate deposits in Cabo Basin, NE Brazil.$h[electronic resource] 260 $c2018 520 $aIn the Cabo Basin, NE Brazil, conglomerates have given rise to soils with attributes that are rarely observed in humid tropical climates and remain relatively unknown within the scientific community. These soils have high levels of Al in the exchangeable phase, diminishing their agricultural and environmental potential in an underdeveloped region of great socioeconomic importance. This paper presents the mineralogy and genesis of soils derived from conglomerates on a slope in the Cabo Basin, with the aim of meeting the demand for studies on Al-rich soils. Three soils were classified, morphologically described and sampled for the accomplishment of chemical, physical and mineralogical analyses, including the main exchangeable cations content, mineralogy of the sand, silt and clay fraction, differentiation of the Fe and Al forms, mineral micromorphology and chemical composition of mineral species. In addition, chemical and physical attributes were used in multivariate analyses. The soil mineralogy is associated with the weathering evolution of three mineralogical zones identified in the Cr horizons. Pathways of alteration followed by feldspars and micas resulted in kaolinite, smectite and hydroxy-Al interlayered smectite formation (argilification). The susceptibility of the conglomerate to weathering, constant releases of Al from the structure of aluminous minerals, low contents of exchangeable bases and consequent low pH values (<5.3) were associated with high levels of exchangeable Al. At the highest position on the slope, a C/Cr transitional horizon provided evidence of the pedogenesis advance on the Cr horizon. Pedogenetic processes then resulted in morphological, physical and mineralogical differentiation between the A and Bt horizons. In addition, a cluster analysis showed similarities between attributes of the Bt and Cr horizons due to their genetic relationships. 650 $aAluminum hydroxide 650 $aExchangeable aluminum 650 $aHydroxy-interlayered minerals 650 $aSaprolite 650 $aSmectite 650 $aSoil 650 $aAlumínio 650 $aHidróxido de Alumínio 650 $aSolo 700 1 $aSANTOS, J. C. B. dos 700 1 $aAZEVEDO, A. C. de 700 1 $aARAUJO FILHO, J. C. de 700 1 $aCORRÊA, M. M. 700 1 $aNEVES, L. V. de M. W. 700 1 $aVIDAL-TORRADO, P. 700 1 $aSOUZA-JÚNIOR, V. S. de 773 $tCatena$gv. 167, p. 198-211, Aug. 2018.
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Biblioteca(s): |
Embrapa Acre. |
Data corrente: |
29/11/2018 |
Data da última atualização: |
29/11/2018 |
Tipo da produção científica: |
Autoria/Organização/Edição de Livros |
Autoria: |
CARTAXO, C. B. da C.; GONZAGA, D. S. de O. M. (ed.). |
Afiliação: |
CLEISA BRASIL DA CUNHA CARTAXO, CPAF-AC; DORILA SILVA DE OLIVEIRA M GONZAGA, CPAF-AC. |
Título: |
Perfil das agroindústrias familiares de frutas do Acre. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
Brasília, DF: Embrapa, 2018. |
Páginas: |
131 p. |
ISBN: |
978-85-7035-847-9 |
Idioma: |
Português |
Conteúdo: |
Esta publicação é resultado do projeto Ações de Transferência de Tecnologia para Modernização de Agroindústrias Familiares do Acre, liderado pela Embrapa Acre e executado entre 2012 e 2015. O referido projeto teve como objetivo transferir tecnologias em colheita, pós-colheita e processamento de frutas visando elevar o padrão tecnológico do setor, em benefício de agricultores e empreendimentos agroindustriais familiares do Acre. |
Palavras-Chave: |
Acre; Amazonia Occidental; Amazônia Ocidental; Explotación agrícola familiar; Frutos; Western Amazon. |
Thesagro: |
Agricultura Familiar; Fruta; Indústria Agrícola; Políticas Públicas; Transferência de Tecnologia. |
Thesaurus NAL: |
Agricultural industry; Family farms; Fruits; Public policy; Technology transfer. |
Categoria do assunto: |
E Economia e Indústria Agrícola |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/187363/1/26746.pdf
|
Marc: |
LEADER 01387nam a2200337 a 4500 001 2100390 005 2018-11-29 008 2018 bl uuuu 00u1 u #d 020 $a978-85-7035-847-9 100 1 $aCARTAXO, C. B. da C. 245 $aPerfil das agroindústrias familiares de frutas do Acre.$h[electronic resource] 260 $aBrasília, DF: Embrapa$c2018 300 $a131 p. 520 $aEsta publicação é resultado do projeto Ações de Transferência de Tecnologia para Modernização de Agroindústrias Familiares do Acre, liderado pela Embrapa Acre e executado entre 2012 e 2015. O referido projeto teve como objetivo transferir tecnologias em colheita, pós-colheita e processamento de frutas visando elevar o padrão tecnológico do setor, em benefício de agricultores e empreendimentos agroindustriais familiares do Acre. 650 $aAgricultural industry 650 $aFamily farms 650 $aFruits 650 $aPublic policy 650 $aTechnology transfer 650 $aAgricultura Familiar 650 $aFruta 650 $aIndústria Agrícola 650 $aPolíticas Públicas 650 $aTransferência de Tecnologia 653 $aAcre 653 $aAmazonia Occidental 653 $aAmazônia Ocidental 653 $aExplotación agrícola familiar 653 $aFrutos 653 $aWestern Amazon 700 1 $aGONZAGA, D. S. de O. M.
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