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 | Acesso ao texto completo restrito à biblioteca da Embrapa Arroz e Feijão. Para informações adicionais entre em contato com cnpaf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão; Embrapa Soja. |
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Data corrente: |
12/11/2009 |
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Data da última atualização: |
17/05/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BARRETO, R. C.; MADARI, B. E.; MADDOCK, J. E. L.; MACHADO, P. L. O. de A.; TORRES, E.; FRANCHINI, J.; COSTA, A. R. |
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Afiliação: |
RENATA C. BARRETO, Universidade Federal Fluminense; BEATA EMOKE MADARI, CNPAF; JOHN E. L. MADDOCK, Universidade Federal Fluminense; PEDRO LUIZ OLIVEIRA DE A MACHADO, CNPAF; ELENO TORRES; JULIO CEZAR FRANCHINI DOS SANTOS, CNPSO; ADRIANA R. COSTA, Universidade Federal Fluminense. |
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Título: |
The impact of soil management on aggregation, carbon stabilization and carbon loss as CO2 in the surface layer of a Rhodic Ferralsol in Southern Brazil. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
Agriculture, Ecosystems and Environment, v. 132, n. 3/4, p. 243-251, Aug. 2009. |
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DOI: |
https://doi.org/10.1016/j.agee.2009.04.008 |
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Idioma: |
Inglês |
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Conteúdo: |
Soil aggregation and organic carbon accumulation are two intrinsically linked phenomena. Soils under natural vegetation and conservation tillage systems generally have higher aggregation indices and total organic carbon (TOC) stocks in the surface layers than soils under conventional management (ploughing). Fromthe point of viewof the emission of carbondioxide (CO2), C stabilization and loss in the surface layer is relevant. The objective of this study was to investigate the effect of no-tillage (NT) and conventional tillage (CT) on TOC stabilization and loss through soil aggregation in the topsoil. Soil aggregation, TOC stocks, and fluxes of CO2 of samples from a Rhodic Ferralsol under NT and CT in a long-term field experiment in Southern Brazil were measured. A natural forest site was also evaluated as reference to the management sites.Emissions ofCO2weremeasured in laboratory incubation experiment on bulk soilsamples and on soil aggregate size fractions, previously separated by dry sieving, in intact and destroyed (crushed to <0.250 mm) state. The soil under NT had larger aggregates and larger proportion of the soil in greater aggregate size classes than CT. Total organic carbon stocks were higher under NT both in bulk soil samples and macroaggregates than under CT. Under laboratory conditions the bulk soil samples from NT showed higher emission rates of CO2 (CO2BS = 18.3 kg C ha-1 h-1) than from CT (CO2BS = 2.3 kg C ha-1 h-1) due to the overall higher TOC stocks. The TOC that was lost by CO2 emission due to the oxidation of readily decomposable macroaggregate-protected SOM in NT (SDCO2 = 79.4 kg C ha-1 h-1) was, however, also higher than under CT (CT:SDCO2 = 29.1 kg C ha-1 h-1). TheTOCstabilized bymacroaggregation inNTwas also more than the TOC lost by CO2 emission from the bulk soil (SDCO2-CO2BS = 61.1 kg C ha-1 h-1), and the difference between these two washigher underNTthan under CT (SDCO2-CO2BS = 26.8 kg C ha-1 h-1), showing that NT in fact accumulates more TOC in the soil by protecting it within themacroaggregates. The natural forest had higher TOC stock and emission rates than the tilled soils, however it also stabilized more TOC. Thus, no-tillage in its effect on carbon stabilization, is between the natural ecosystem and CT, representing a soilmanagement system that seemsto be an efficient on thewaypath to the recuperation of soil after conventional management systems. MenosSoil aggregation and organic carbon accumulation are two intrinsically linked phenomena. Soils under natural vegetation and conservation tillage systems generally have higher aggregation indices and total organic carbon (TOC) stocks in the surface layers than soils under conventional management (ploughing). Fromthe point of viewof the emission of carbondioxide (CO2), C stabilization and loss in the surface layer is relevant. The objective of this study was to investigate the effect of no-tillage (NT) and conventional tillage (CT) on TOC stabilization and loss through soil aggregation in the topsoil. Soil aggregation, TOC stocks, and fluxes of CO2 of samples from a Rhodic Ferralsol under NT and CT in a long-term field experiment in Southern Brazil were measured. A natural forest site was also evaluated as reference to the management sites.Emissions ofCO2weremeasured in laboratory incubation experiment on bulk soilsamples and on soil aggregate size fractions, previously separated by dry sieving, in intact and destroyed (crushed to <0.250 mm) state. The soil under NT had larger aggregates and larger proportion of the soil in greater aggregate size classes than CT. Total organic carbon stocks were higher under NT both in bulk soil samples and macroaggregates than under CT. Under laboratory conditions the bulk soil samples from NT showed higher emission rates of CO2 (CO2BS = 18.3 kg C ha-1 h-1) than from CT (CO2BS = 2.3 kg C ha-1 h-1) due to the overall higher TOC stocks. The TOC... Mostrar Tudo |
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Palavras-Chave: |
Total organic carbon. |
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Thesagro: |
Manejo do solo; Plantio direto; Solo. |
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Thesaurus Nal: |
conventional tillage; No-tillage; Soil aggregation; Soil management. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 03406naa a2200301 a 4500
001 1574597
005 2022-05-17
008 2009 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.agee.2009.04.008$2DOI
100 1 $aBARRETO, R. C.
245 $aThe impact of soil management on aggregation, carbon stabilization and carbon loss as CO2 in the surface layer of a Rhodic Ferralsol in Southern Brazil.$h[electronic resource]
260 $c2009
520 $aSoil aggregation and organic carbon accumulation are two intrinsically linked phenomena. Soils under natural vegetation and conservation tillage systems generally have higher aggregation indices and total organic carbon (TOC) stocks in the surface layers than soils under conventional management (ploughing). Fromthe point of viewof the emission of carbondioxide (CO2), C stabilization and loss in the surface layer is relevant. The objective of this study was to investigate the effect of no-tillage (NT) and conventional tillage (CT) on TOC stabilization and loss through soil aggregation in the topsoil. Soil aggregation, TOC stocks, and fluxes of CO2 of samples from a Rhodic Ferralsol under NT and CT in a long-term field experiment in Southern Brazil were measured. A natural forest site was also evaluated as reference to the management sites.Emissions ofCO2weremeasured in laboratory incubation experiment on bulk soilsamples and on soil aggregate size fractions, previously separated by dry sieving, in intact and destroyed (crushed to <0.250 mm) state. The soil under NT had larger aggregates and larger proportion of the soil in greater aggregate size classes than CT. Total organic carbon stocks were higher under NT both in bulk soil samples and macroaggregates than under CT. Under laboratory conditions the bulk soil samples from NT showed higher emission rates of CO2 (CO2BS = 18.3 kg C ha-1 h-1) than from CT (CO2BS = 2.3 kg C ha-1 h-1) due to the overall higher TOC stocks. The TOC that was lost by CO2 emission due to the oxidation of readily decomposable macroaggregate-protected SOM in NT (SDCO2 = 79.4 kg C ha-1 h-1) was, however, also higher than under CT (CT:SDCO2 = 29.1 kg C ha-1 h-1). TheTOCstabilized bymacroaggregation inNTwas also more than the TOC lost by CO2 emission from the bulk soil (SDCO2-CO2BS = 61.1 kg C ha-1 h-1), and the difference between these two washigher underNTthan under CT (SDCO2-CO2BS = 26.8 kg C ha-1 h-1), showing that NT in fact accumulates more TOC in the soil by protecting it within themacroaggregates. The natural forest had higher TOC stock and emission rates than the tilled soils, however it also stabilized more TOC. Thus, no-tillage in its effect on carbon stabilization, is between the natural ecosystem and CT, representing a soilmanagement system that seemsto be an efficient on thewaypath to the recuperation of soil after conventional management systems.
650 $aconventional tillage
650 $aNo-tillage
650 $aSoil aggregation
650 $aSoil management
650 $aManejo do solo
650 $aPlantio direto
650 $aSolo
653 $aTotal organic carbon
700 1 $aMADARI, B. E.
700 1 $aMADDOCK, J. E. L.
700 1 $aMACHADO, P. L. O. de A.
700 1 $aTORRES, E.
700 1 $aFRANCHINI, J.
700 1 $aCOSTA, A. R.
773 $tAgriculture, Ecosystems and Environment$gv. 132, n. 3/4, p. 243-251, Aug. 2009.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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| Registros recuperados : 11 | |
| 1. |  | BUZAR, A. G. R.; OLIVEIRA, V. R.; BOITEUX, L. S. Estimativa da diversidade genética de germoplasma de cebola via descritores morfológicos, agronômicos e bioquímicos. Horticultura Brasileira, Brasília, DF, v. 25, n. 4, p. 527-532, out./dez. 2007.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Nacional - A |
| Biblioteca(s): Embrapa Hortaliças. |
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| 3. | | BUZAR, A. G. R.; FONSECA, M. E. N.; OLIVEIRA, V. R.; BOITEUX, L. S. Comparação de sistemas de marcadores moleculares para distinção de citoplasma normal (N) e macho-estéril (S) em cebola. Horticultura Brasileira, Brasília, DF, v. 25, n. 1, p. s6, ago. 2007. Suplemento. Resumo 13. Trabalho apresentado no 47. Congresso Brasileiro de Olericultura, 4. Simpósio Brasileiro sobre Cucurbitáceas, 2007. Porto Seguro.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Hortaliças. |
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| 4. | | BUZAR, A. G. R.; SANTOS, M. do D. dos; FONSECA, M. E. N.; OLIVEIRA, V. R.; REIS, A.; TORRES, A. C.; BOITEUX, L. S. Análise via PCR de germoplasma de cebola empregando marcadores de moleculares derivados de genes análogos de resistência a doenças. Horticultura Brasileira, Brasília, DF, v. 25, n. 1, p. s99, ago. 2007. Suplemento. Resumo 532. Trabalho apresentado no 47. Congresso Brasileiro de Olericultura, 4. Simpósio Brasileiro sobre Cucurbitáceas, 2007. Porto Seguro.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Hortaliças. |
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| 5. | | BUZAR, A. G. R.; SANTOS, M. do D. M. dos; FONSECA, M. E. N.; OLIVEIRA, V. R.; REIS, A.; TORRES, A. C.; BOITEUX, L. S. Análise via PCR de germoplasma de cebola empregando marcadores moleculares derivados de genes análogos de resistência a doenças. In: CONGRESSO BRASILEIRO DE OLERICULTURA, 47.; SIMPÓSIO BRASILEIRO SOBRE CUCURBITÁCEAS, 4., 2007, Porto Seguro. Resgatando e valorizando as hortaliças subutilizadas. Porto Seguro: Associação Brasileira de Horticultura, 2007. CD-ROM| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Hortaliças. |
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| 6. | | SANTOS, M. dos D. M. dos; BUZAR, A. G. R.; FONSECA, M. E. de N.; OLIVEIRA, V. R.; TORRES, A. C.; BOITEUX, L. S. Caracterização molecular do tipo de citoplasma (N, S e T) em acessos de uma coleção brasileira de germoplasma de cebola. Horticultura Brasileira, Brasília, DF, v. 25, n. 1, ago. 2007. S103. Suplemento. Trabalho apresentado no 47. Congresso Brasileiro de Olericultura, 4. Simpósio Brasileiro sobre Cucurbitáceas, 2007. Porto Seguro. Resumo 552.| Tipo: Resumo em Anais de Congresso | Circulação/Nível: -- - -- |
| Biblioteca(s): Embrapa Hortaliças. |
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| 7. | | SANTOS, M. dos D. M. dos; BUZAR, A. G. R.; FONSECA, M. E. N.; OLIVEIRA, V. R.; TORRES, A. C.; BOITEUX, L. S. Caracterização molecular do tipo de citoplasma (N, S e T) em acessos de uma coleção brasileira de germoplasma de cebola. In: CONGRESSO BRASILEIRO DE OLERICULTURA, 47.; SIMPÓSIO BRASILEIRO SOBRE CUCURBITÁCEAS, 4., 2007, Porto Seguro. Resgatando e valorizando as hortaliças subutilizadas. Porto Seguro: Associação Brasileira de Horticultura, 2007.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Hortaliças. |
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| 8. | | SANTOS, M. do D. M. dos; RAGASSI, C. F.; FONSECA, M. E. N.; BUZAR, A. G. R.; OLIVEIRA, V. R.; MELO, P. C. T. de; BOITEUX, L. S. Diversidade genética em germoplasma tropical de cebola estimada via marcadores RAPD. Horticultura Brasileira, v. 30, n. 1, p. 112-118, jan./mar. 2012.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Hortaliças. |
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| 9. | | SANTOS, M. do D. M. dos; BUZAR, A. G. R.; FONSECA, M. E. de N.; OLIVEIRA, V. R.; TORRES, A. C.; BOITEUX, L. S. Relação genética entre acessos de cebola adaptados para o cultivo no Brasil estimada via marcadores RAPD. Horticultura Brasileira, Brasília, DF, v. 25, n. 1, ago. 2007. S 97 Suplemento. Trabalho apresentado no 47. Congresso Brasileiro de Olericultura, 4. Simpósio Brasileiro sobre Cucurbitáceas, 2007. Porto Seguro. Resumo 522.| Tipo: Resumo em Anais de Congresso | Circulação/Nível: -- - -- |
| Biblioteca(s): Embrapa Hortaliças. |
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| 10. | | RAGASSI, C. F.; SANTOS, M. do D. M dos; FONSECA, M. E. de N.; OLIVEIRA, V. R.; BUZAR, A. G. R.; COSTA, C. P. da; BOITEUX, L. S. Genotipagem de polimorfismos associados com sistemas de macho-esterilidade em acessos de cebola adaptados ao Brasil. Horticultura Brasileira, v. 30, n. 3, p. 409-414, jul./set. 2012.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Hortaliças. |
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| 11. | | SANTOS, C. R.; MARTINS, N. F.; ARAÚJO, M. M.; TOGAWA, R. C.; BUZAR, A. G. R.; FARIAS, M. P.; SOUZA JÚNIOR, M. T. Identificação e caracterização de homólogos de genes de resistência a estresses bióticos e abióticos em Musa acuminata. In: ENCONTRO DO TALENTO ESTUDANTIL DA EMBRAPA RECURSOS GENÉTICOS E BIOTECNOLOGIA, 11., 2006, Brasília, DF. Anais: resumos dos trabalhos. Brasília, DF: Embrapa Recursos Genéticos e Biotecnologia, 2006. p. 88.| Tipo: Resumo em Anais de Congresso | Circulação/Nível: -- - -- |
| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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| Registros recuperados : 11 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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