| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Gado de Corte. |
|
Data corrente: |
19/03/2010 |
|
Data da última atualização: |
27/04/2010 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
DIECKOW, J.; BAYER, C.; CONCEIÇÃO, P. C.; ZANATTA, J. A.; MARTIN NETO, L.; MILORI, D. M. B. P.; SALTON, J. C.; MACEDO, M. C. M.; MIELNICZUK, J.; HERNANI, L. C. |
|
Afiliação: |
J. DIECKOW, UFPR; C. BAYER, UFRGS; P. C. CONCEIÇÃO, UNIVERSIDADE TECNOLÓGICA FEDERAL DO PARANÁ - DOIS VIZINHOS; J. A. ZANATTA, UFRGS; LADISLAU MARTIN NETO, CNPDIA - Labex USA; DEBORA MARCONDES BASTOS P MILORI, CNPDIA; JULIO CESAR SALTON, CPAO; MANUEL CLAUDIO MOTTA MACEDO, CNPGC; J. MIELNICZUK, UFRGS; LUIS CARLOS HERNANI, CPAO. |
|
Título: |
Land use, tillage, texture and organic matter stock and composition in tropical and subtropical brazilian soils. |
|
Ano de publicação: |
2009 |
|
Fonte/Imprenta: |
European Journal of Soil Science, Oxford, v. 60, p. 240-249, Apr. 2009. Issue 2. |
|
DOI: |
10.1111/j.1365-2389.2008.01101.x |
|
Idioma: |
Inglês |
|
Conteúdo: |
We examined the influence of land use change, tillage system and soil texture on organic carbon (C) stocks and on organic matter composition of tropical and subtropical soils from Brazil at four long-term experiments (11–25 years) based on fine- and coarse-textured soils. Soil samples were collected from the 0–5, 5–10 and 10–20 cm layers of conventional tillage (CT) and no-till (NT) plots, and of the adjoining soil under native vegetation (NV) of Cerrado (tropical) or grassland (subtropical). Conversion of NV to CT resulted in losses of 7–29% of the original C stock of 0–20 cm; conversion to NT increased this C stock by 0–12% compared with CT. Organic matter composition of the 0–5 cm layer, assessed by solid state CPMAS-13C-NMR, ESR and laser induced fluorescence spectroscopies, was affected by land use and tillage systems. Conversion of NV to CT decreased O-alkyl and increased aromatic, carbonyl, aromatic/O-alkyl ratio, free radicals concentration and fluorescence signal. The opposite trend was observed when NT replaced CT. The relative losses and gains of C and qualitative changes resulting from land use and tillage were less evident in fine- than in coarse-textured soils, suggesting a greater resistance and a smaller resilience of fine- compared with coarse-textured soils. The direct relation between increase in C stock and increase in potentially labile moieties (e.g. O-alkyl) and the decrease in more recalcitrant moieties (e.g. aromatics) in NT soils suggests that spatial inaccessibility by aggregates is playing a major role, compared with selective preservation, in promoting C accumulation in NT soils. MenosWe examined the influence of land use change, tillage system and soil texture on organic carbon (C) stocks and on organic matter composition of tropical and subtropical soils from Brazil at four long-term experiments (11–25 years) based on fine- and coarse-textured soils. Soil samples were collected from the 0–5, 5–10 and 10–20 cm layers of conventional tillage (CT) and no-till (NT) plots, and of the adjoining soil under native vegetation (NV) of Cerrado (tropical) or grassland (subtropical). Conversion of NV to CT resulted in losses of 7–29% of the original C stock of 0–20 cm; conversion to NT increased this C stock by 0–12% compared with CT. Organic matter composition of the 0–5 cm layer, assessed by solid state CPMAS-13C-NMR, ESR and laser induced fluorescence spectroscopies, was affected by land use and tillage systems. Conversion of NV to CT decreased O-alkyl and increased aromatic, carbonyl, aromatic/O-alkyl ratio, free radicals concentration and fluorescence signal. The opposite trend was observed when NT replaced CT. The relative losses and gains of C and qualitative changes resulting from land use and tillage were less evident in fine- than in coarse-textured soils, suggesting a greater resistance and a smaller resilience of fine- compared with coarse-textured soils. The direct relation between increase in C stock and increase in potentially labile moieties (e.g. O-alkyl) and the decrease in more recalcitrant moieties (e.g. aromatics) in NT soils suggests that spati... Mostrar Tudo |
|
Thesagro: |
Solo. |
|
Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
|
Marc: |
LEADER 02425naa a2200253 a 4500
001 1661828
005 2010-04-27
008 2009 bl --- 0-- u #d
024 7 $a10.1111/j.1365-2389.2008.01101.x$2DOI
100 1 $aDIECKOW, J.
245 $aLand use, tillage, texture and organic matter stock and composition in tropical and subtropical brazilian soils.
260 $c2009
520 $aWe examined the influence of land use change, tillage system and soil texture on organic carbon (C) stocks and on organic matter composition of tropical and subtropical soils from Brazil at four long-term experiments (11–25 years) based on fine- and coarse-textured soils. Soil samples were collected from the 0–5, 5–10 and 10–20 cm layers of conventional tillage (CT) and no-till (NT) plots, and of the adjoining soil under native vegetation (NV) of Cerrado (tropical) or grassland (subtropical). Conversion of NV to CT resulted in losses of 7–29% of the original C stock of 0–20 cm; conversion to NT increased this C stock by 0–12% compared with CT. Organic matter composition of the 0–5 cm layer, assessed by solid state CPMAS-13C-NMR, ESR and laser induced fluorescence spectroscopies, was affected by land use and tillage systems. Conversion of NV to CT decreased O-alkyl and increased aromatic, carbonyl, aromatic/O-alkyl ratio, free radicals concentration and fluorescence signal. The opposite trend was observed when NT replaced CT. The relative losses and gains of C and qualitative changes resulting from land use and tillage were less evident in fine- than in coarse-textured soils, suggesting a greater resistance and a smaller resilience of fine- compared with coarse-textured soils. The direct relation between increase in C stock and increase in potentially labile moieties (e.g. O-alkyl) and the decrease in more recalcitrant moieties (e.g. aromatics) in NT soils suggests that spatial inaccessibility by aggregates is playing a major role, compared with selective preservation, in promoting C accumulation in NT soils.
650 $aSolo
700 1 $aBAYER, C.
700 1 $aCONCEIÇÃO, P. C.
700 1 $aZANATTA, J. A.
700 1 $aMARTIN NETO, L.
700 1 $aMILORI, D. M. B. P.
700 1 $aSALTON, J. C.
700 1 $aMACEDO, M. C. M.
700 1 $aMIELNICZUK, J.
700 1 $aHERNANI, L. C.
773 $tEuropean Journal of Soil Science, Oxford$gv. 60, p. 240-249, Apr. 2009. Issue 2.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Gado de Corte (CNPGC) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Recursos Genéticos e Biotecnologia. Para informações adicionais entre em contato com cenargen.biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Recursos Genéticos e Biotecnologia. |
|
Data corrente: |
12/01/2015 |
|
Data da última atualização: |
29/04/2024 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
B - 1 |
|
Autoria: |
INGLIS, P. W.; CIAMPI, A. Y.; SALOMAO, A. N.; COSTA, T. da S. A.; AZEVEDO, V. C. R. |
|
Afiliação: |
PETER W. INGLIS; ANTONIETA NASSIF SALOMAO, CENARGEN; TANIA DA SILVEIRA AGOSTINI COSTA, CENARGEN; VANIA CRISTINA RENNO AZEVEDO, CENARGEN. |
|
Título: |
Expression of stress-related genes in zebrawood (Astronium fraxinifolium, Anacardiaceae) seedlings following germination in microgravity. |
|
Ano de publicação: |
2014 |
|
Fonte/Imprenta: |
Genetics and Molecular Biology, v. 37, n. 1, p. 81-92 2014. |
|
Idioma: |
Inglês |
|
Palavras-Chave: |
Zebrawood. |
|
Thesaurus NAL: |
germination; microgravity; stress response; suppression subtractive hybridization. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 00725naa a2200217 a 4500
001 2005142
005 2024-04-29
008 2014 bl uuuu u00u1 u #d
100 1 $aINGLIS, P. W.
245 $aExpression of stress-related genes in zebrawood (Astronium fraxinifolium, Anacardiaceae) seedlings following germination in microgravity.$h[electronic resource]
260 $c2014
650 $agermination
650 $amicrogravity
650 $astress response
650 $asuppression subtractive hybridization
653 $aZebrawood
700 1 $aCIAMPI, A. Y.
700 1 $aSALOMAO, A. N.
700 1 $aCOSTA, T. da S. A.
700 1 $aAZEVEDO, V. C. R.
773 $tGenetics and Molecular Biology$gv. 37, n. 1, p. 81-92 2014.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Recursos Genéticos e Biotecnologia (CENARGEN) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
