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Registro Completo |
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
13/08/2004 |
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Data da última atualização: |
08/03/2010 |
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Autoria: |
SILVA, A. C.; TORRADO, P. V.; MARTIN-NETO, L.; VASQUEZ, F. M.; GONZALEZ-PEREZ, M. |
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Título: |
Soil organic matter and geomorphic surface stability relationship in an Oxisol Toposequence (SE Brazil). |
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Ano de publicação: |
2004 |
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Fonte/Imprenta: |
In: MARTIN-NETO, L.; MILORI, D.M.B.P.; SILVA, W.T.L. (Ed.). Humic substances and soil and water environment: International Meeting of IHSS, 12. São Carlos : Embrapa Instrumentação Agropecuária, 2004. p. 623-626. |
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Idioma: |
Inglês |
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Notas: |
CLASSIFICAÇÃO CDD: 630 |
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Conteúdo: |
I. INTRODUCTION
Relieve is among soil formation factors, the one that contrais matter distribution in the soil system. The understanding of soil-landscape relations has been facilitated through utilization of topographic attributes, such as declivity, to establish relations with pedogenetic processes (Silva and Vidal Torrado, 1999). Accumulation and humification degree of organic matter, for example, can be correlated with soil declivity. In well-drained areas, the general rule is the smaller the declivity the bigger the rate of organic matter (OM) accumulation and humification degree, remaining constant the other soil formation factors (Silva and Vidal Torrado, 1999). Thus, the organic carbon content t would be higher as much as OM structure more complex at the summit of the slope than at back slope, where the carbon content would be lower and OM structure simpler. Thus, the content of charcoal fragments found at soil surface horizons would be higher and their radiocarbon age older, in areas with low declivity than in areas with high declivity, as the former areas suftered low influence of hydric erosion (Pessenda et al., 1996; Silva and Vidal Torrado, 1999). Riffaldi and Schnitzer (1972) report that semiquinone -type free radicais are stabilized with complex aromatic structures in humic substances. Thus, the free radical concentration of humic substances should decrease with increasing declivity and consequently the stability of geomorphic surfaces should decrease.
Declivity is an attribute of relieve that is related to the accumulation and stability of organic matter in the soil. For this reason, in this paper were quantitatively evaluated relations among declivity, the humification degree of humic acids, the charcoal fragment content and its radiocarbon age. MenosI. INTRODUCTION
Relieve is among soil formation factors, the one that contrais matter distribution in the soil system. The understanding of soil-landscape relations has been facilitated through utilization of topographic attributes, such as declivity, to establish relations with pedogenetic processes (Silva and Vidal Torrado, 1999). Accumulation and humification degree of organic matter, for example, can be correlated with soil declivity. In well-drained areas, the general rule is the smaller the declivity the bigger the rate of organic matter (OM) accumulation and humification degree, remaining constant the other soil formation factors (Silva and Vidal Torrado, 1999). Thus, the organic carbon content t would be higher as much as OM structure more complex at the summit of the slope than at back slope, where the carbon content would be lower and OM structure simpler. Thus, the content of charcoal fragments found at soil surface horizons would be higher and their radiocarbon age older, in areas with low declivity than in areas with high declivity, as the former areas suftered low influence of hydric erosion (Pessenda et al., 1996; Silva and Vidal Torrado, 1999). Riffaldi and Schnitzer (1972) report that semiquinone -type free radicais are stabilized with complex aromatic structures in humic substances. Thus, the free radical concentration of humic substances should decrease with increasing declivity and consequently the stability of geomorphic surfaces should decrease.
Dec... Mostrar Tudo |
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Palavras-Chave: |
C14; dectivity; EPR; humification degree; soil charcoal; Soil humic acids. |
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Categoria do assunto: |
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Marc: |
LEADER 02673naa a2200253 a 4500
001 1028581
005 2010-03-08
008 2004 bl --- 0-- u #d
100 1 $aSILVA, A. C.
245 $aSoil organic matter and geomorphic surface stability relationship in an Oxisol Toposequence (SE Brazil).
260 $c2004
500 $aCLASSIFICAÇÃO CDD: 630
520 $aI. INTRODUCTION Relieve is among soil formation factors, the one that contrais matter distribution in the soil system. The understanding of soil-landscape relations has been facilitated through utilization of topographic attributes, such as declivity, to establish relations with pedogenetic processes (Silva and Vidal Torrado, 1999). Accumulation and humification degree of organic matter, for example, can be correlated with soil declivity. In well-drained areas, the general rule is the smaller the declivity the bigger the rate of organic matter (OM) accumulation and humification degree, remaining constant the other soil formation factors (Silva and Vidal Torrado, 1999). Thus, the organic carbon content t would be higher as much as OM structure more complex at the summit of the slope than at back slope, where the carbon content would be lower and OM structure simpler. Thus, the content of charcoal fragments found at soil surface horizons would be higher and their radiocarbon age older, in areas with low declivity than in areas with high declivity, as the former areas suftered low influence of hydric erosion (Pessenda et al., 1996; Silva and Vidal Torrado, 1999). Riffaldi and Schnitzer (1972) report that semiquinone -type free radicais are stabilized with complex aromatic structures in humic substances. Thus, the free radical concentration of humic substances should decrease with increasing declivity and consequently the stability of geomorphic surfaces should decrease. Declivity is an attribute of relieve that is related to the accumulation and stability of organic matter in the soil. For this reason, in this paper were quantitatively evaluated relations among declivity, the humification degree of humic acids, the charcoal fragment content and its radiocarbon age.
653 $aC14
653 $adectivity
653 $aEPR
653 $ahumification degree
653 $asoil charcoal
653 $aSoil humic acids
700 1 $aTORRADO, P. V.
700 1 $aMARTIN-NETO, L.
700 1 $aVASQUEZ, F. M.
700 1 $aGONZALEZ-PEREZ, M.
773 $tIn: MARTIN-NETO, L.; MILORI, D.M.B.P.; SILVA, W.T.L. (Ed.). Humic substances and soil and water environment: International Meeting of IHSS, 12. São Carlos : Embrapa Instrumentação Agropecuária, 2004. p. 623-626.
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Registro original: |
Embrapa Instrumentação (CNPDIA) |
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| Registros recuperados : 27 | |
| 1. |  | SILVA, A. C.; TORRADO, P. V.; MARTIN-NETO, L.; VASQUEZ, F. M.; GONZALEZ-PEREZ, M. Soil organic matter and geomorphic surface stability relationship in an Oxisol Toposequence (SE Brazil). In: MARTIN-NETO, L.; MILORI, D.M.B.P.; SILVA, W.T.L. (Ed.). Humic substances and soil and water environment: International Meeting of IHSS, 12. São Carlos : Embrapa Instrumentação Agropecuária, 2004. p. 623-626. CLASSIFICAÇÃO CDD: 630| Biblioteca(s): Embrapa Instrumentação. |
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| 2. | | GONZÁLEZ PÉREZ, M.; COLNAGO, L. A.; MARTIN-NETO, L.; BERTON, R.; BETTIOL, W. CAMARGO, O. A. RMN de 13C de solos intactos e frações granulométricas para estudos de matéria orgânica. In: JORNADA BRASILEIRA DE RESSONÂNCIA MAGNÉTICA,7.; WORKSHOP "APLICAÇÕES DA RMN", 2002, Maringá. Resumos... [Rio de Janeiro]: AUREMN: UFRJ-Instituto de Química, 2002. p. 115-116.| Biblioteca(s): Embrapa Instrumentação. |
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| 4. | | MILORI, D. M. B. P.; COLNAGO, L. A.; MARTIN-NETO, L.; GONZÁLEZ-PÉREZ, M. Organic matter evaluation of a brazilian oxisol through spectroscopic techniques. In: INTERNATIONAL MEETING OF INTERNATIONAL HUMIC SUBSTANCES SOCIETY. -- IHSS, 12, São Pedro, SP, 2004. Humic substances and soil and water environment. Abstracts...[São Carlos], SP: Embrapa Instrumentação Agropecuária, 2004. p. 79.| Biblioteca(s): Embrapa Instrumentação. |
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| 5. | | GONZÁLEZ-PÉREZ, M.; BUURMAN, P.; VIDAL-TORRADO, P.; MARTIN NETO, L. Pyrolysis-gas chromatography/mass spectrometry characterization of humic acids in spodosols under tropical rain forest in southeastern Brazil. In: MEETING OF THE INTERNATIONAL HUMIC SUBSTANCES SOCIETY, 15., 2010, Puerto de la Cruz, ES. Advances in natural organic matter and humic substances research 2008-2010: proceedings. [S. l.: s. n.], 2010. v. 2. p. 329-332. J. A. González-Pérez, F. J. González-Vila, G. Almendros, Eds.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Instrumentação. |
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| 7. | | GONZÁLEZ PÉREZ, M.; MILORI, D. M. B. P.; MARTIN-NETO, L.; BERTON, R.; BETTIOL, W.; CAMARGO, O. A. Avaliação das frações granulométricas de um latossolo vermelho amarelo tratado com lodo de esgoto através da fluorescência induzida por laser. In: REUNIÃO BRASILEIRA DE MANEJO E CONSERVAÇÃO DO SOLO E DA ÁGUA, 14., 2002, Cuiabá. Anais... [Cuiabá: SBCS: UFMT], 2002. 4 f. 1 CD-ROM.| Biblioteca(s): Embrapa Instrumentação. |
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| 9. | | GONZÁLEZ-PÉREZ, M.; TORRADO, P. V.; MILORI, D. M. P. B.; MARTIN-NETO, L.; COLNAGO, L. A.; GOMES, F. H. Comparação por fluorescência entre ácidos húmicos e fúlvicos de espodossolos de SP. In: ENCONTRO BRASILEIRO DE SUBSTÂNCIAS HÚMICAS - EBSH, 7., 2007, Florianópolis, SC. As substâncias húmicas podem ajudar a salvar o planeta terra? Livro de resumos... Florianópolis: EBSH, 2007. p. 42.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Instrumentação. |
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| 10. | | GONZÁLEZ PÉREZ, M.; SAAB, S. da C.; MELO, W. J. de; SOUZA, W. J. O. de; MARTIN-NETO, L. Caracterização por espectroscopia de FTIR e EPR de ácidos húmicos de um solo latossolo roxo sob diferentes manejos. In: SIMPÓSIO NACIONAL DE INSTRUMENTAÇÃO AGROPECUÁRIA, 2., dez. 1998, São Carlos, SP. Anais do II SIAGRO. São Carlos: Embrapa Instrumentação Agropecuária, 2000. p. 122-128. Editores: Paulo Estevão Cruvinel, Luiz Alberto Colnago, André Torre-Neto.| Biblioteca(s): Embrapa Instrumentação. |
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| 12. | | GONZÁLEZ-PÉREZ, M.; MILORI, D. M. B. P.; BERTON, R.; BETTIOL, W.; CAMARGO, O. A.; MARTIN-NETO, L. Distribuição de metais pesados nas frações granulométricas de um solo tratado com lodo de esgoto. In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 29., 2003, Ribeirão Preto. Solo: alicerce dos sistemas de produção. Ribeirão Preto: UNESP, 2003. 4 f. 1 CD-Rom.| Biblioteca(s): Embrapa Instrumentação. |
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| 13. | | GONZÁLEZ PÉREZ, M.; NUNO, C. S.; COLNAGO, L. A.; KNICKER, H.; TORRADO, P. V.; MARTIN NETO, L. Evaluation of magnetic field effect on quantification of aromatic components of humic acids by 13C CPMAS NMR. In: NUCLEAR MAGNETIC RESONANCE USERS MEETING, 11., 2007. Angra dos Reis.; WORKSHOP NMR IN SOUTH AMERICA, 2007. Angra dos Reis, RJ. Extended abstracts book... Angra dos reis, 2007. p. 101-102.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Instrumentação. |
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| 14. | | GONZÁLEZ-PÉREZ, M.; MILORI, D. M. B. P.; MARTIN-NETO, L.; BERTON, R.; BETTIOL, W.; CAMARGO, O. A. Fluorescência induzida por laser para avaliar matéria orgânica de solos sob aplicação de lodo de esgoto. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE QUÍMICA: REFLEXÃO CRÍTICA E PERSPECTIVAS, 25., 2002, Caxambu. Livro de resumos... Poços de Caldas: [Sociedade Brasileira de Química]., 2002. Não-paginado, ref. AB-011.| Biblioteca(s): Embrapa Instrumentação. |
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| 15. | | GONZÁLEZ PEREZ, M.; MILLORI, D. M. B. P.; MARTIN-NETO, L.; BERTON, R.; BETTIOL, W.; CAMARGO, O. A. Grau de humificação de ácidos húmicos de um latossolo vermelho amarelo tratado com lodo de esgoto determinado por fotoluminescência. In: ENCONTRO BRASILEIRO DE SUBSTÂNCIAS HÚMICAS-IHSS, 4., 2001, Viçosa. IHSS 2001: resumos de palestras e trabalhos apresentados. Viçosa: UFV-Departamento de Solos: Grupo Brasileiro da IHSS, 2001. p. 200-202.| Biblioteca(s): Embrapa Instrumentação. |
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| 17. | | GONZÁLEZ-PÉREZ, M.; TORRADO, P. V.; COLNAGO, L. A.; MARTIN-NETO, L.; OTERO, X. L.; MILORI, D. M. B. P.; GOMES, F. H. 13C NMR and FTIR spectroscopy characterization of humic acids in spodosols under tropical rain forest in southeastern Brazil. Geoderma, Amsterdam, v. 146, p. 425-433, 2008.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Internacional - A |
| Biblioteca(s): Embrapa Instrumentação. |
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| 18. | | GONZÁLEZ-PÉREZ, M.; FERREIRA, A. G.; COLNAGO, L. A.; DAOLIO, C.; BERTON, R.; BETTIOL, W.; CAMARGO, O. A.; MARTIN-NETO, L. Application of 1H HR;MAS NMVR to soil organic matter studies. In: ENCONTRO DE USUÁRIOS DE RESSONÂNCIA MAGNÉTICA NUCLEAR, 9., 2003, Angra dos Reis. Extended abstracts... Agra dos Reis: AUREMN, 2003. 2 f. 1 CD-ROM.| Biblioteca(s): Embrapa Instrumentação. |
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| 19. | | GONZÁLEZ-PÉREZ, M.; MARTIN-NETO, L.; COLNAGO, L. A.; MILORI, D. M. B. P.; CAMARGO, O. A. de; BERTON, R.; BETTIOL, W. Characterization of humic acids extracted from sewage sludge-amended oxisols by electron paramagnetic resonance. Soil & Tillage Research, Amsterdam, v. 91, n. 1-2, p. 95-100, 2006.| Biblioteca(s): Embrapa Instrumentação. |
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| 20. | | GONZÁLEZ-PÉREZ, M.; TORRADO, P. V.; MARTIN-NETO, L.; COLNAGO, L. A.; MILORI, D. M. B. P.; GOMES, F. H.; OTERO, X. L. Characterization of humic acids in tropical spodosols by 13C NMR spectroscopy. In: FRIMMEL, F. H.; ABBT-BRAUN, G. (Ed.). MEETING OF THE INTERNATIONAL HUMIC SUBSTANCES SOCIETY, 13TH ., 2006, Karlsruhe. Humic substances - Linking structure to functions. Proceedings... [S. l.]: IHSS, 2006. p. 149-152.| Biblioteca(s): Embrapa Instrumentação. |
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| Registros recuperados : 27 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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