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| Registros recuperados : 166 | |
| 83. |  | GRUNNENVALDT, R.; TOMASI, J. de C.; HANSEL, F. A.; DEGENHARDT, J. Efeito da radiação ultravioleta no acúmulo de compostos secundários em cultura de calos de Ilex paraguariensis. In: EVENTOS ARAUCÁRIA: PESQUISA, INOVAÇÃO E TECNOLOGIAS PARA SISTEMAS DE PRODUÇÃO, ERVA-MATE XXI: INOVAÇÃO E TECNOLOGIAS PARA O SETOR ERVATEIRO, 2020, Colombo. Anais. Colombo: Embrapa Florestas, 2021. p. 45. (Embrapa Florestas. Documentos, 344). Resumo.| Biblioteca(s): Embrapa Florestas. |
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| 92. | | ROSA, F. da R.; DUTRA, L. F.; BRONDANI, G. E.; HANSEL, F. A. Micropropagação de erva-mate: Efeito da desinfestação no estabelicimento de segmentos nodais. In: CONGRESO SUDAMERICANO DE LA YERBA MATE, 4.; REUNIÓN TÉCNICA DE LA YERBA MATE, 4., EXPOSICIÓN DE AGRONEGOCIOS DE LA YERBA MATE, 2., 2006, Posadas. Actas. Posadas: INTA, 2006. p. 184-187.| Biblioteca(s): Embrapa Florestas. |
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| 95. | | BRONDANI, G. E.; DUTRA, L. F.; WENDLING, I.; GROSSI, F.; HANSEL, F. A.; ARAÚJO, M. A. Micropropagation of an Eucalyptus hybrid (Eucalyptus benthamii x Eucalyptus dunnii). Acta Scientiarum. Agronomy, Maringá, v. 33, n. 4, p. 655-663, 2011.| Biblioteca(s): Embrapa Clima Temperado; Embrapa Florestas. |
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| 98. | | GUIOTOKU, M.; HANSEL, F. A.; NOVOTNY, E. H.; MAIA, C. M. B. de F. Molecular and morphological characterization of hydrochar produced by microwave-assisted hydrothermal carbonization of cellulose. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 47, n. 5, p. 687-692, maio 2012.| Biblioteca(s): Embrapa Florestas; Embrapa Solos; Embrapa Unidades Centrais. |
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| Registros recuperados : 166 | |
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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. |
Registro Completo
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Biblioteca(s): |
Embrapa Florestas; Embrapa Solos. |
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Data corrente: |
04/04/2013 |
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Data da última atualização: |
20/02/2014 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
TAUBE, P. S.; HANSEL, F. A.; MADUREIRA, L. A. dos S.; TEIXEIRA, W. G. |
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Afiliação: |
Paulo S. Taube, UFSC; FABRICIO AUGUSTO HANSEL, CNPF; Luiz A. dos Santos Madureira, UFSC; WENCESLAU GERALDES TEIXEIRA, CNPS. |
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Título: |
Organic geochemical evaluation of organic acids to assess anthropogenic soil deposits of Central Amazon, Brazil. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Organic Geochemistry, v. 58, p. 96-106, 2013. |
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Idioma: |
Inglês |
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Conteúdo: |
Terra Preta de Índio (TPI) and Terra Mulata (TM) are anthropogenic soils from the Amazon region and are rich in stable organic matter (OM). The formation and incorporation of OM in these soils has recently been under investigation. Organic geochemical analysis is an appropriated tool for the assessment of the sources of OM. Therefore, we have used the distribution of different acid classes preserved in the free and bound soil fractions of 12 samples from two contrast ing anthropogenic soils (TPI, TM) and an adjacent soil, in order to infer the sources of OM and the magnitude of non-cultural influence on the formation of anthropog enic soils. The major acids in both fractions (i.e. free and bound) were n-saturated, branched and unsaturated alkanoic acids, hydroxyalkanoic acids, bile acids and lignin/suberin derived aromatic acids. In general, the acids in the free and bound fractions appeared to be complementary and together provided valuable information about OM incorporation into anthropogenic soils. Different incorpor ation of x -hydroxyalkanoic acids (C22 ,C24 and C28) and 9(10), 16-ihydroxyhexadecanoic acid, and presence/absence of bile acid showed a distinct genesis for the soils. The influence of modern vegetation was revealed by bound x -hydroxyalkanoic acid (C22, C24 and C28 ) distributions only in the topsoilprofiles of TPI and TM, indicating that organic geochemical analysis is a useful approach in the investigation of ancient human deposits in tropical archaeological soils. MenosTerra Preta de Índio (TPI) and Terra Mulata (TM) are anthropogenic soils from the Amazon region and are rich in stable organic matter (OM). The formation and incorporation of OM in these soils has recently been under investigation. Organic geochemical analysis is an appropriated tool for the assessment of the sources of OM. Therefore, we have used the distribution of different acid classes preserved in the free and bound soil fractions of 12 samples from two contrast ing anthropogenic soils (TPI, TM) and an adjacent soil, in order to infer the sources of OM and the magnitude of non-cultural influence on the formation of anthropog enic soils. The major acids in both fractions (i.e. free and bound) were n-saturated, branched and unsaturated alkanoic acids, hydroxyalkanoic acids, bile acids and lignin/suberin derived aromatic acids. In general, the acids in the free and bound fractions appeared to be complementary and together provided valuable information about OM incorporation into anthropogenic soils. Different incorpor ation of x -hydroxyalkanoic acids (C22 ,C24 and C28) and 9(10), 16-ihydroxyhexadecanoic acid, and presence/absence of bile acid showed a distinct genesis for the soils. The influence of modern vegetation was revealed by bound x -hydroxyalkanoic acid (C22, C24 and C28 ) distributions only in the topsoilprofiles of TPI and TM, indicating that organic geochemical analysis is a useful approach in the investigation of ancient human deposits in tropical archaeologi... Mostrar Tudo |
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Palavras-Chave: |
Antropogenic soil; Organic acid; Solo antropogênico; Terra Mulata; Terra Preta de Índio. |
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Thesagro: |
Solo. |
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Thesaurus NAL: |
Amazonia. |
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Categoria do assunto: |
--
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02227naa a2200241 a 4500
001 1980677
005 2014-02-20
008 2013 bl uuuu u00u1 u #d
100 1 $aTAUBE, P. S.
245 $aOrganic geochemical evaluation of organic acids to assess anthropogenic soil deposits of Central Amazon, Brazil.$h[electronic resource]
260 $c2013
520 $aTerra Preta de Índio (TPI) and Terra Mulata (TM) are anthropogenic soils from the Amazon region and are rich in stable organic matter (OM). The formation and incorporation of OM in these soils has recently been under investigation. Organic geochemical analysis is an appropriated tool for the assessment of the sources of OM. Therefore, we have used the distribution of different acid classes preserved in the free and bound soil fractions of 12 samples from two contrast ing anthropogenic soils (TPI, TM) and an adjacent soil, in order to infer the sources of OM and the magnitude of non-cultural influence on the formation of anthropog enic soils. The major acids in both fractions (i.e. free and bound) were n-saturated, branched and unsaturated alkanoic acids, hydroxyalkanoic acids, bile acids and lignin/suberin derived aromatic acids. In general, the acids in the free and bound fractions appeared to be complementary and together provided valuable information about OM incorporation into anthropogenic soils. Different incorpor ation of x -hydroxyalkanoic acids (C22 ,C24 and C28) and 9(10), 16-ihydroxyhexadecanoic acid, and presence/absence of bile acid showed a distinct genesis for the soils. The influence of modern vegetation was revealed by bound x -hydroxyalkanoic acid (C22, C24 and C28 ) distributions only in the topsoilprofiles of TPI and TM, indicating that organic geochemical analysis is a useful approach in the investigation of ancient human deposits in tropical archaeological soils.
650 $aAmazonia
650 $aSolo
653 $aAntropogenic soil
653 $aOrganic acid
653 $aSolo antropogênico
653 $aTerra Mulata
653 $aTerra Preta de Índio
700 1 $aHANSEL, F. A.
700 1 $aMADUREIRA, L. A. dos S.
700 1 $aTEIXEIRA, W. G.
773 $tOrganic Geochemistry$gv. 58, p. 96-106, 2013.
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