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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: |
01/12/2008 |
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Data da última atualização: |
14/08/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FONTANA, A.; PEREIRA, M. G.; ANJOS, L. H. C. dos; BENITES, V. de M. |
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Afiliação: |
Ademir Fontana, Universidade Federal Rural do Rio de Janeiro (UFRRJ); Marcos Gervasio Pereira, Universidade Federal Rural do Rio de Janeiro (UFRRJ); Lúcia Helena Cunha dos Anjos, Universidade Federal Rural do Rio de Janeiro (UFRRJ); VINICIUS DE MELO BENITES, CNPS. |
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Título: |
Distribution of organic carbon in the humic fractions of diagnostic horizons from brazilian soils. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
Communications in Soil Science and Plant Analysis, v. 39, n. 7/8, p. 951-971, Apr. 2008. |
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Idioma: |
Inglês |
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Conteúdo: |
This study was developed on 52 soil profiles, 61 surface diagnostic horizons, and 26 subsurface diagnostic horizons classified according to the Soil Taxonomy and Brazilian Soil Classification System (SiBCS) as Mollisols (Chernossolos), Spodosols (Espodossolos), Entisols (Gleissolos), Oxisols (Latossolos), and Histosols (Organossolos). The objective was to quantify the carbon (C) in organic matter fractions and to correlate it with soil chemical attributes. Soil organic matter was fractionated into fulvic acids (C-FAF), humic acids (C-HAF), and humin (C-HUM), and the ratios C-HAF/C-FAF and AE (alkaline extract)/C-HUM were calculated. Humin was the predominant fraction in Mollisols and Oxisols, which showed values of AE/C-HUM and C-HAF/C-FAF lower than 1.0. The humin fraction was also predominant in surface horizons of Spodosols and Entisols, whereas a higher content of C-FAF and C-FAH was observed in the subsurface horizons, with values higher than 1.5 for the AE/C-HUM ratio. C-HAF was predominant in the Histosols, and C-HAF/C-FAF ratio values were higher than 2.0. The highest correlation values with soil attributes were observed for C-HAF, C-HUM, and total organic C with pH, sum of bases, and cation exchange capacity. The differences in humic substances distribution was a useful parameter to characterize soil orders in the Brazilian soil classification system and to understand pedogenic processes. |
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Palavras-Chave: |
Chemical fractioning; pedogenesis. |
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Thesaurus Nal: |
humic substances; soil organic matter. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02086naa a2200205 a 4500
001 1339721
005 2020-08-14
008 2008 bl uuuu u00u1 u #d
100 1 $aFONTANA, A.
245 $aDistribution of organic carbon in the humic fractions of diagnostic horizons from brazilian soils.$h[electronic resource]
260 $c2008
520 $aThis study was developed on 52 soil profiles, 61 surface diagnostic horizons, and 26 subsurface diagnostic horizons classified according to the Soil Taxonomy and Brazilian Soil Classification System (SiBCS) as Mollisols (Chernossolos), Spodosols (Espodossolos), Entisols (Gleissolos), Oxisols (Latossolos), and Histosols (Organossolos). The objective was to quantify the carbon (C) in organic matter fractions and to correlate it with soil chemical attributes. Soil organic matter was fractionated into fulvic acids (C-FAF), humic acids (C-HAF), and humin (C-HUM), and the ratios C-HAF/C-FAF and AE (alkaline extract)/C-HUM were calculated. Humin was the predominant fraction in Mollisols and Oxisols, which showed values of AE/C-HUM and C-HAF/C-FAF lower than 1.0. The humin fraction was also predominant in surface horizons of Spodosols and Entisols, whereas a higher content of C-FAF and C-FAH was observed in the subsurface horizons, with values higher than 1.5 for the AE/C-HUM ratio. C-HAF was predominant in the Histosols, and C-HAF/C-FAF ratio values were higher than 2.0. The highest correlation values with soil attributes were observed for C-HAF, C-HUM, and total organic C with pH, sum of bases, and cation exchange capacity. The differences in humic substances distribution was a useful parameter to characterize soil orders in the Brazilian soil classification system and to understand pedogenic processes.
650 $ahumic substances
650 $asoil organic matter
653 $aChemical fractioning
653 $apedogenesis
700 1 $aPEREIRA, M. G.
700 1 $aANJOS, L. H. C. dos
700 1 $aBENITES, V. de M.
773 $tCommunications in Soil Science and Plant Analysis$gv. 39, n. 7/8, p. 951-971, Apr. 2008.
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Embrapa Solos (CNPS) |
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| Registros recuperados : 258 | |
| 2. |  | ANJOS, L. H. C. dos; PEREIRA, M. G.; FONTANA, A. Matéria orgânica e pedogênese. In: SANTOS, G. de A.; SILVA, L. S. da; CANELLAS, L. P.; CAMARGO, F. A. de O. (ed.). Fundamentos da matéria orgânica do solo: ecossistemas tropicais & subtropicais. 2. ed. rev. e atual. Porto Alegre: Metrópole, 2008. cap. 6, p. 65-86.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Solos. |
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| 5. | | CORDEIRO, F. R.; FONTANA, A.; MENEZES, A. R.; TEIXEIRA, W. G.; ANJOS, L. H. C. dos. Amazonian Dark Earth: proposal of modification of the pretic horizon criteria. In: WORLD CONGRESS OF SOIL SCIENCE, 21., 2018, Rio de Janeiro. Soil science: beyond food and fuel: proceedings... Viçosa, MG: SBCS, 2019. v. 2, p. 51. WCSS 2018.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Solos. |
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| 8. | | LOSS, A.; PEREIRA, M. G.; GIÁCOMO, S. G.; PERIN, A.; ANJOS, L. H. C. dos. Agregação, carbono e nitrogênio em agregados do solo sob plantio direto com integração lavoura-pecuária. Pesquisa agropecuária Brasileira, Brasília, DF, v. 46, n. 10, p. 1269-1276, out. 2011 Título em inglês: Aggregation, carbon and nitrogen in soil aggregates under no?tillage with crop?livestock integration.| Biblioteca(s): Embrapa Unidades Centrais. |
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| Registros recuperados : 258 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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