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 | Acesso ao texto completo restrito à biblioteca da Embrapa Solos. Para informações adicionais entre em contato com cnps.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
24/04/2023 |
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Data da última atualização: |
04/12/2023 |
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Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
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Autoria: |
CORRÊA, M. M.; ARAUJO FILHO, J. C. de; SCHAEFER, C. E. G. R.; KER, J. C. |
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Afiliação: |
MARCELO METRI CORRÊA, UNIVERSIDADE FEDERAL DO AGRESTE DE PERNAMBUCO; JOSE COELHO DE ARAUJO FILHO, CNPS; CARLOS ERNESTO GONÇALVES REYNAUD SCHAEFER, UNIVERSIDADE FEDERAL DE VIÇOSA; JOÃO CARLOS KER, UNIVERSIDADE FEDERAL DE VIÇOSA. |
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Título: |
Soils of the Coastal Tablelands under Atlantic Forest (Tabuleiros Costeiros). |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
In: SCHAEFER, C. E. G. R. (ed.). The soils of Brazil. Cham: Springer, 2023. cap. 8, p. 221-238. (World soils book series). |
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DOI: |
https://doi.org/10.1007/978-3-031-19949-3_8 |
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Idioma: |
Inglês |
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Conteúdo: |
The Coastal Tablelands (CT) or Tabuleiros Costeiros are formed by the extensive coastal sedimentary strip, along a north-south direction, with a predominant width between 10 and 160 km, ranging from Rio de Janeiro to Amapá State, and formerly covered by Rainforest, with many contrasting peculiarities of soils with adjacent soil regions. Landforms are usually low plateaus (20-220 m.), developed on subhorizontal Cenozoic continental sediments of the Barreiras Group, with varying texture. Explored since the early days of Brazilian colonization, the Coastal Tablelands lost virtually all of its original vegetation cover, the Atlantic Forest, after 500 years of occupation of Brazilian coastal areas. The climate and agricultural conditions are varied, and soils, although chemically poor, are favorable to the agricultural operations, especially for perennial crops. Pastures, sugarcane, and eucalyptus are prominent land use in the CT, especially in the Southeastern and Northeastern regions. Despite the unequivocal suitability for perennial crops, some characteristics, however, constitute natural obstacles that limit generalized agricultural use: the low natural fertility of soils, subsurface cohesion or densification, and local climatic conditions. Due to the intense pre-weathering and chemical leaching, and the consequent lack of weatherable primary minerals in all CT soils, most nutrients are originally associated with the biomass and are easily lost. The removal of the native vegetation, especially the original forest, besides the routine practice of burning, resulted in widespread soil degradation. In the CT region, areas with >3% slope show strong sheet erosion, especially under high rainfall. On the other hand, the occurrence of the subsurface densified layer hinders surface leaching, and contributes to the increasing surface erosion, limiting root penetration and water drainage in the soil. This strong densification, generally between 30 and 70 cm depths, requires management practices such as subsoiling in common citrus, papaya and eucalyptus crops. This technique improves the physical conditions and the nutrients' cycling, resulting in good yields. Also, the adoption of management practices that maintain soil moisture is efficient in reducing the effect of natural soil cohesion. The CT soils have very low amounts of silt and are therefore not prone to crusting. In CT dominated by cohesive Argissolo Amarelo (Acrisols) and Latossolo Amarelo (Ferralsols), agricultural use with perennial crops attained success, even where densification is intense, with soil bulk density >1.5 g cm-3, but subsoiling is required. Other soils of reduced geographic expression in the Coastal Tablelands present other limitations that seriously undermine agricultural use, such as Argissolos Acinzentados (Acrisols), Espodossolos (Podzols), Neossolos Quartzarênicos (Arenosols), Plintossolos (Plinthosols). Espodossolos (Podzols) under open, grassy to shrubby Mussununga vegetation are very acidic and sandy and may present drainage constraints imposed by the presence of fragipan or "ortstein". MenosThe Coastal Tablelands (CT) or Tabuleiros Costeiros are formed by the extensive coastal sedimentary strip, along a north-south direction, with a predominant width between 10 and 160 km, ranging from Rio de Janeiro to Amapá State, and formerly covered by Rainforest, with many contrasting peculiarities of soils with adjacent soil regions. Landforms are usually low plateaus (20-220 m.), developed on subhorizontal Cenozoic continental sediments of the Barreiras Group, with varying texture. Explored since the early days of Brazilian colonization, the Coastal Tablelands lost virtually all of its original vegetation cover, the Atlantic Forest, after 500 years of occupation of Brazilian coastal areas. The climate and agricultural conditions are varied, and soils, although chemically poor, are favorable to the agricultural operations, especially for perennial crops. Pastures, sugarcane, and eucalyptus are prominent land use in the CT, especially in the Southeastern and Northeastern regions. Despite the unequivocal suitability for perennial crops, some characteristics, however, constitute natural obstacles that limit generalized agricultural use: the low natural fertility of soils, subsurface cohesion or densification, and local climatic conditions. Due to the intense pre-weathering and chemical leaching, and the consequent lack of weatherable primary minerals in all CT soils, most nutrients are originally associated with the biomass and are easily lost. The removal of the native vege... Mostrar Tudo |
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Palavras-Chave: |
Brazilian pedology; Cohesive soils; Mares de Morros landscape; Mussunungas soils; Neotropical soils; Pedologia brasileira; Rainforest soils; Solos Neotropicais; Tropical Pedology. |
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Thesagro: |
Ferralsolo. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 04079naa a2200289 a 4500
001 2153318
005 2023-12-04
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/978-3-031-19949-3_8$2DOI
100 1 $aCORRÊA, M. M.
245 $aSoils of the Coastal Tablelands under Atlantic Forest (Tabuleiros Costeiros).$h[electronic resource]
260 $c2023
520 $aThe Coastal Tablelands (CT) or Tabuleiros Costeiros are formed by the extensive coastal sedimentary strip, along a north-south direction, with a predominant width between 10 and 160 km, ranging from Rio de Janeiro to Amapá State, and formerly covered by Rainforest, with many contrasting peculiarities of soils with adjacent soil regions. Landforms are usually low plateaus (20-220 m.), developed on subhorizontal Cenozoic continental sediments of the Barreiras Group, with varying texture. Explored since the early days of Brazilian colonization, the Coastal Tablelands lost virtually all of its original vegetation cover, the Atlantic Forest, after 500 years of occupation of Brazilian coastal areas. The climate and agricultural conditions are varied, and soils, although chemically poor, are favorable to the agricultural operations, especially for perennial crops. Pastures, sugarcane, and eucalyptus are prominent land use in the CT, especially in the Southeastern and Northeastern regions. Despite the unequivocal suitability for perennial crops, some characteristics, however, constitute natural obstacles that limit generalized agricultural use: the low natural fertility of soils, subsurface cohesion or densification, and local climatic conditions. Due to the intense pre-weathering and chemical leaching, and the consequent lack of weatherable primary minerals in all CT soils, most nutrients are originally associated with the biomass and are easily lost. The removal of the native vegetation, especially the original forest, besides the routine practice of burning, resulted in widespread soil degradation. In the CT region, areas with >3% slope show strong sheet erosion, especially under high rainfall. On the other hand, the occurrence of the subsurface densified layer hinders surface leaching, and contributes to the increasing surface erosion, limiting root penetration and water drainage in the soil. This strong densification, generally between 30 and 70 cm depths, requires management practices such as subsoiling in common citrus, papaya and eucalyptus crops. This technique improves the physical conditions and the nutrients' cycling, resulting in good yields. Also, the adoption of management practices that maintain soil moisture is efficient in reducing the effect of natural soil cohesion. The CT soils have very low amounts of silt and are therefore not prone to crusting. In CT dominated by cohesive Argissolo Amarelo (Acrisols) and Latossolo Amarelo (Ferralsols), agricultural use with perennial crops attained success, even where densification is intense, with soil bulk density >1.5 g cm-3, but subsoiling is required. Other soils of reduced geographic expression in the Coastal Tablelands present other limitations that seriously undermine agricultural use, such as Argissolos Acinzentados (Acrisols), Espodossolos (Podzols), Neossolos Quartzarênicos (Arenosols), Plintossolos (Plinthosols). Espodossolos (Podzols) under open, grassy to shrubby Mussununga vegetation are very acidic and sandy and may present drainage constraints imposed by the presence of fragipan or "ortstein".
650 $aFerralsolo
653 $aBrazilian pedology
653 $aCohesive soils
653 $aMares de Morros landscape
653 $aMussunungas soils
653 $aNeotropical soils
653 $aPedologia brasileira
653 $aRainforest soils
653 $aSolos Neotropicais
653 $aTropical Pedology
700 1 $aARAUJO FILHO, J. C. de
700 1 $aSCHAEFER, C. E. G. R.
700 1 $aKER, J. C.
773 $tIn: SCHAEFER, C. E. G. R. (ed.). The soils of Brazil. Cham: Springer, 2023. cap. 8, p. 221-238. (World soils book series).
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Embrapa Solos (CNPS) |
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Biblioteca(s): |
Embrapa Agroindústria de Alimentos. |
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Data corrente: |
31/01/2019 |
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Data da última atualização: |
17/08/2023 |
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Tipo da produção científica: |
Comunicado Técnico/Recomendações Técnicas |
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Autoria: |
ANJOS, M. R. dos; SOUZA, M. de L. M. de. |
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Afiliação: |
MARIANNA RAMOS DOS ANJOS, CTAA; MARIA DE LOURDES MENDES DE SOUZA, CTAA. |
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Título: |
Método de Análise de Acrilamida em Café Torrado por Cromatografia Líquida de Ultra eficiência Acoplada à Espectrometria de Massas Sequencial (CLUE-EM/EM). |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Rio de Janeiro: Embrapa Agroindústria de Alimentos, 2018. |
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Páginas: |
7 p. |
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Série: |
(Embrapa Agroindústria de Alimentos. Comunicado Técnico, 233). |
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Idioma: |
Português |
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Conteúdo: |
Métodos de quantificação de acrilamida em alimentos são necessários para avaliar com precisão a exposição humana a esta substância prejudicial. Tais métodos devem produzir dados confiáveis. A determinação da concentração de acrilamida em alimentos requer uma capacidade analítica apropriada, com o uso de técnicas complexas de preparo de amostras antes da análise instrumental, que deve contar com equipamentos modernos. O objetivo deste trabalho foi descrever um método implantado para determinação e quantificação de acrilamida em café torrado usando cromatografia líquida de ultraeficiência acoplada à espectrometria de massas sequencial (CLUE-EM/EM). |
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Palavras-Chave: |
Acrilamida. |
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Thesagro: |
Análise de Alimento; Café; Cromatografia; Espectrometria; Processamento; Segurança Alimentar; Tecnologia de Alimento. |
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Categoria do assunto: |
Q Alimentos e Nutrição Humana |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/196660/1/CT-233-acrilamida-em-cafe.pdf
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Marc: |
LEADER 01520nam a2200241 a 4500
001 2105244
005 2023-08-17
008 2018 bl uuuu u0uu1 u #d
100 1 $aANJOS, M. R. dos
245 $aMétodo de Análise de Acrilamida em Café Torrado por Cromatografia Líquida de Ultra eficiência Acoplada à Espectrometria de Massas Sequencial (CLUE-EM/EM).$h[electronic resource]
260 $aRio de Janeiro: Embrapa Agroindústria de Alimentos$c2018
300 $a7 p.
490 $a(Embrapa Agroindústria de Alimentos. Comunicado Técnico, 233).
520 $aMétodos de quantificação de acrilamida em alimentos são necessários para avaliar com precisão a exposição humana a esta substância prejudicial. Tais métodos devem produzir dados confiáveis. A determinação da concentração de acrilamida em alimentos requer uma capacidade analítica apropriada, com o uso de técnicas complexas de preparo de amostras antes da análise instrumental, que deve contar com equipamentos modernos. O objetivo deste trabalho foi descrever um método implantado para determinação e quantificação de acrilamida em café torrado usando cromatografia líquida de ultraeficiência acoplada à espectrometria de massas sequencial (CLUE-EM/EM).
650 $aAnálise de Alimento
650 $aCafé
650 $aCromatografia
650 $aEspectrometria
650 $aProcessamento
650 $aSegurança Alimentar
650 $aTecnologia de Alimento
653 $aAcrilamida
700 1 $aSOUZA, M. de L. M. de
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