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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
03/01/2011 |
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Data da última atualização: |
19/06/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
KASCHUK, G.; ALBERTON, O.; HUNGRIA, M. |
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Afiliação: |
GLACIELA KASCHUK, Universidade Paranaense - UNIPAR; ODAIR ALBERTON, Universidade Paranaense - UNIPAR; MARIANGELA HUNGRIA DA CUNHA, CNPSO. |
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Título: |
Quantifying effects of different agricultural land uses on soil microbial biomass and activity in Brazilian biomes: inferences to improve soil quality. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Plant and Soil, The Hague, v. 338, n. 1-2, p. 467-481, Jan. 2011. |
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DOI: |
10.1007/s11104-010-0559-z |
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Idioma: |
Inglês |
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Conteúdo: |
Maintenance of soil quality is a key component of agriculture sustainability and a main goal of most farmers, environmentalists and government policymakers. However, as there are no parameters or methods to evaluate soil quality directly, some attributes of relevant soil functions are taken as indicators; lately, an increase in the use of soil microbial parameters has occurred, and their viability as indicators of proper land use has been highlighted. In this study we performed a meta-analysis of the response ratios of several microbial and chemical parameters to soil disturbance by different land uses in the Brazilian biomes. The studies included native forests, pastures and perennial and annual cropping systems. The introduction of agricultural practices in all biomes covered previously with natural vegetation profoundly affected microbial biomass-C (MB-C)?with an overall decrease of 31%. Annual crops most severely reduced microbial biomass and soil organic C, with an average decrease of 53% in the MB-C. In addition, the MB-C/TSOC (total soil organic carbon) ratio was significantly decreased with the transformation of forests to perennial plantation (25%), pastures (26%), and annual cropping (20%). However, each biome reacted differently to soil disturbance, i.e., decreases in MB-C followed the order of Cerrado>Amazon>Caatinga>Atlantic Forest. In addition, the Cerrado appeared to have the most fragile soil ecosystem because of lower MB-C/TSOC and higher qCO2. Unfortunately, the Cerrado and the Amazon, demonstrated by our study as the most fragile biomes, have been subjected to the highest agronomic pressure. The results reported here may help to infer the best land-use strategies to improve soil quality and achieve agriculture sustainability. The approach can also be very useful to monitor soil quality in other tropical and subtropical biomes. MenosMaintenance of soil quality is a key component of agriculture sustainability and a main goal of most farmers, environmentalists and government policymakers. However, as there are no parameters or methods to evaluate soil quality directly, some attributes of relevant soil functions are taken as indicators; lately, an increase in the use of soil microbial parameters has occurred, and their viability as indicators of proper land use has been highlighted. In this study we performed a meta-analysis of the response ratios of several microbial and chemical parameters to soil disturbance by different land uses in the Brazilian biomes. The studies included native forests, pastures and perennial and annual cropping systems. The introduction of agricultural practices in all biomes covered previously with natural vegetation profoundly affected microbial biomass-C (MB-C)?with an overall decrease of 31%. Annual crops most severely reduced microbial biomass and soil organic C, with an average decrease of 53% in the MB-C. In addition, the MB-C/TSOC (total soil organic carbon) ratio was significantly decreased with the transformation of forests to perennial plantation (25%), pastures (26%), and annual cropping (20%). However, each biome reacted differently to soil disturbance, i.e., decreases in MB-C followed the order of Cerrado>Amazon>Caatinga>Atlantic Forest. In addition, the Cerrado appeared to have the most fragile soil ecosystem because of lower MB-C/TSOC and higher qCO2. Unfortunately... Mostrar Tudo |
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Thesagro: |
Composto organico; Materia organica; Microbiologia; Solo. |
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Thesaurus Nal: |
Microbial biomass; Soil microorganisms; Soil organic matter. |
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Categoria do assunto: |
A Sistemas de Cultivo |
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Marc: |
LEADER 02672naa a2200241 a 4500
001 1871396
005 2024-06-19
008 2011 bl uuuu u00u1 u #d
024 7 $a10.1007/s11104-010-0559-z$2DOI
100 1 $aKASCHUK, G.
245 $aQuantifying effects of different agricultural land uses on soil microbial biomass and activity in Brazilian biomes$binferences to improve soil quality.$h[electronic resource]
260 $c2011
520 $aMaintenance of soil quality is a key component of agriculture sustainability and a main goal of most farmers, environmentalists and government policymakers. However, as there are no parameters or methods to evaluate soil quality directly, some attributes of relevant soil functions are taken as indicators; lately, an increase in the use of soil microbial parameters has occurred, and their viability as indicators of proper land use has been highlighted. In this study we performed a meta-analysis of the response ratios of several microbial and chemical parameters to soil disturbance by different land uses in the Brazilian biomes. The studies included native forests, pastures and perennial and annual cropping systems. The introduction of agricultural practices in all biomes covered previously with natural vegetation profoundly affected microbial biomass-C (MB-C)?with an overall decrease of 31%. Annual crops most severely reduced microbial biomass and soil organic C, with an average decrease of 53% in the MB-C. In addition, the MB-C/TSOC (total soil organic carbon) ratio was significantly decreased with the transformation of forests to perennial plantation (25%), pastures (26%), and annual cropping (20%). However, each biome reacted differently to soil disturbance, i.e., decreases in MB-C followed the order of Cerrado>Amazon>Caatinga>Atlantic Forest. In addition, the Cerrado appeared to have the most fragile soil ecosystem because of lower MB-C/TSOC and higher qCO2. Unfortunately, the Cerrado and the Amazon, demonstrated by our study as the most fragile biomes, have been subjected to the highest agronomic pressure. The results reported here may help to infer the best land-use strategies to improve soil quality and achieve agriculture sustainability. The approach can also be very useful to monitor soil quality in other tropical and subtropical biomes.
650 $aMicrobial biomass
650 $aSoil microorganisms
650 $aSoil organic matter
650 $aComposto organico
650 $aMateria organica
650 $aMicrobiologia
650 $aSolo
700 1 $aALBERTON, O.
700 1 $aHUNGRIA, M.
773 $tPlant and Soil, The Hague$gv. 338, n. 1-2, p. 467-481, Jan. 2011.
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Registro original: |
Embrapa Soja (CNPSO) |
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| Registros recuperados : 5 | |
| 1. |  | GOULART, M. DE O.; MARTINS, M. T. B.; ANDRADE, A. C.; MOLINARI, H. B. C. Isolamento de ESTs diferencialmente expressos induzidos por etanol em Saccharum spp. In: SIMPÓSIO BRASILEIRO DE RECURSOS GENÉTICOS, 2., 2008, Brasília, DF. Anais... Brasília, DF: Embrapa Recursos Genéticos e Biotecnologia, 2008. p. 229.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agroenergia. |
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| 2. | | GOULART, M. de O.; MARTINS, M. T. B.; ANDRADE, A. C.; MOLINARI, H. B. C. Isolamento de ESTs diferencialmente expressos induzidos por etanol em Saccharum spp. In: SIMPÓSIO BRASILEIRO DE RECURSOS GENÉTICOS, 2., 2008, Brasília, DF. Anais... Brasília, DF: Embrapa Recursos Genéticos e Biotecnologia: Fundação de Apoio à Pesquisa Científica e Tecnológica - FUNCREDI, 2008. p.229.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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| 3. | | MARTINS, M. T. B.; SOUZA, A. P. de; ARENQUE, B.; GOULART, M. de O.; MURAD, A. M.; QUIRINO, B. F.; BUCKERIDGE, M. S.; MOLINARI, H. B. C. Caracterização da parede celular de Saccharum spp. L. em diferentes estádios de senescência foliar. In: CONGRESSO BRASILEIRO DE FISIOLOGIA VEGETAL, 12., 2009, Fortaleza. Desafios para a produção de alimentos e bioenergia: livro de resumos. Fortaleza: SBFV: UFC: Embrapa Agroindústria Tropical, 2009.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agroenergia. |
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| 4. | | MURAD, A. M.; MOLINARI, H. B. C.; TAKAHASHI, F. S. C.; OLIVEIRA JÚNIOR, N. G. de; MARTINS, M. T. B.; GOULART, M. de O.; FRANCO, O. L.; QUIRINO, B. F. Análise fisiológica e proteômica comparativa de duas variedades de Saccharum spp. submetidas a estresse salino. In: WORKSHOP EM CIÊNCIAS GENÔMICAS E BIOTECNOLOGIA, 1., 2009, Brasília, DF. [Anais...]. Brasília, DF: [UCB], 2009. Não paginado.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Agroenergia. |
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| 5. | | MARTINS, M. T. B.; SOUZA, A. P. de; ARENQUE, B.; GOULART, M. de O.; MURAD, A. M.; ANDRADE, A. C.; QUIRINO, B. F.; BUCKERIDGE, M. S.; MOLINARI, H. B. C. Characterization of Saccharum spp. L. cell-wall at different stages of leaf senescence. In: SUGARCANE BREEDING AND GERMPLASM WORKSHOP, 9., 2009, Cairns. [Abstracts...] [S.l.]: International Society of Sugar Cane Technologists, 2009. p. 12.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agroenergia. |
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| Registros recuperados : 5 | |
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