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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
28/02/2000 |
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Data da última atualização: |
28/02/2000 |
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Autoria: |
CARDOSO, C. F. R.; PROENCA, C. E. B.; MUNHOZ, C. B. |
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Título: |
Projeto conservacao e manejo da biodiversidade do bioma cerrado (Subprojeto Miconia). |
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Ano de publicação: |
1999 |
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Fonte/Imprenta: |
In: CONGRESSO DE INICIACAO CIENTIFICA DA UnB, 5., 1999, Anais. Brasilia, DF. Brasilia: UnB, 1999. |
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Páginas: |
p.48. |
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Idioma: |
Português |
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Notas: |
Resumo. |
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Thesagro: |
Biogeografia; Cerrado. |
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Thesaurus Nal: |
biogeography; Miconia. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00609naa a2200205 a 4500
001 1545816
005 2000-02-28
008 1999 bl uuuu u00u1 u #d
100 1 $aCARDOSO, C. F. R.
245 $aProjeto conservacao e manejo da biodiversidade do bioma cerrado (Subprojeto Miconia).
260 $c1999
300 $ap.48.
500 $aResumo.
650 $abiogeography
650 $aMiconia
650 $aBiogeografia
650 $aCerrado
700 1 $aPROENCA, C. E. B.
700 1 $aMUNHOZ, C. B.
773 $tIn: CONGRESSO DE INICIACAO CIENTIFICA DA UnB, 5., 1999, Anais. Brasilia, DF. Brasilia: UnB, 1999.
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Registro original: |
Embrapa Cerrados (CPAC) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Instrumentação. Para informações adicionais entre em contato com cnpdia.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
12/08/2004 |
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Data da última atualização: |
11/09/2007 |
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Autoria: |
BARRIQUELLO M. F.; MILORI, D. M. B. P.; NEVES, E. A.; MARTIN-NETO, L. |
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Título: |
Fluorescence spectroscopy comparison of soil humic acids and model humic acid-type polymers. |
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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. 358-360. |
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Idioma: |
Inglês |
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Notas: |
CLASSIFICAÇÃO CDD: 630 |
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Conteúdo: |
I. INTRODUCTION
Humic Substances (HS) have been object of numerous studies, but the basic che and lhe reactivity 01 them are still not well understood. A consensus exists that lhe Iraction of soil organic matter receives an important contribution from polymerizatio involving both phenolic compounds and thedegradation products of proteinaceous mate et al.,1990, Zech et al., 1997). Recognition of this pathway to humus formation has
number of investigations in which humic acid-type polymers have been synthesized and th properties compared to those of natural humic acid These studies have been useful to the identification of significant processes leading to humification and to lhe elucidation of molecular structure of soil organic matter. Fluorescence spectroscopy has been recentl powerful means for the evaluation of humification and molecular size of humic substan et al., 1999; Kalbitz et. al., 1999, Milori et al., 2002). Although lhe fluorescent structures substances depends on their properties of several molecular and environment paramete molecular weight, concentration and pH, render their investigation particularly useful to obtain unique information, not only about lhe fluorescence behavior but algo about lhe general nature a of humic materiais (Senesi et al., 1991). In this work, lhe fluorescence spectra of lhe mo are studied in comparison with the spectra of natural HA.
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Palavras-Chave: |
fluorescence spectroscopy; Soil humic acids; synthetic humic acids. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02185naa a2200205 a 4500
001 1028569
005 2007-09-11
008 2004 bl --- 0-- u #d
100 1 $aBARRIQUELLO M. F.
245 $aFluorescence spectroscopy comparison of soil humic acids and model humic acid-type polymers.
260 $c2004
500 $aCLASSIFICAÇÃO CDD: 630
520 $aI. INTRODUCTION Humic Substances (HS) have been object of numerous studies, but the basic che and lhe reactivity 01 them are still not well understood. A consensus exists that lhe Iraction of soil organic matter receives an important contribution from polymerizatio involving both phenolic compounds and thedegradation products of proteinaceous mate et al.,1990, Zech et al., 1997). Recognition of this pathway to humus formation has number of investigations in which humic acid-type polymers have been synthesized and th properties compared to those of natural humic acid These studies have been useful to the identification of significant processes leading to humification and to lhe elucidation of molecular structure of soil organic matter. Fluorescence spectroscopy has been recentl powerful means for the evaluation of humification and molecular size of humic substan et al., 1999; Kalbitz et. al., 1999, Milori et al., 2002). Although lhe fluorescent structures substances depends on their properties of several molecular and environment paramete molecular weight, concentration and pH, render their investigation particularly useful to obtain unique information, not only about lhe fluorescence behavior but algo about lhe general nature a of humic materiais (Senesi et al., 1991). In this work, lhe fluorescence spectra of lhe mo are studied in comparison with the spectra of natural HA.
653 $afluorescence spectroscopy
653 $aSoil humic acids
653 $asynthetic humic acids
700 1 $aMILORI, D. M. B. P.
700 1 $aNEVES, E. A.
700 1 $aMARTIN-NETO, L.
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. 358-360.
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