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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
01/06/2022 |
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Data da última atualização: |
01/06/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
DIAS, F. P. M.; LEANDRO, W. M.; FERNANDES, P. M.; XAVIER, F. A. da S. |
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Afiliação: |
FABIANE PEREIRA MACHADO DIAS, Federal University of Goias; WILSON MOZENA LEANDRO, Federal University of Goias; PAULO MARÇAL FERNANDES, Federal University of Goias; FRANCISCO ALISSON DA SILVA XAVIER, CNPMF. |
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Título: |
Impact of short-term land-use change on soil organic carbon dynamics in transitional agro-ecosystems: a case study in the Brazilian Cerrado. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Carbon Managemen, v. 13, Issue 1, 2022. |
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Idioma: |
Inglês |
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Conteúdo: |
Agricultural expansion directly impacts the dynamics of organic carbon (C) in the soil. After land use change, agricultural systems with greater resilience of soil C stocks could be preferentially adopted. The objective of the present study was to determine the impact of short-term conversion of grassland into different agricultural systems on soil organic C stocks and their resilience in a site-specific region of Brazilian Cerrado in the State of Goiás. The following systems were evaluated: pasture (PAST), no-tillage system (NT), four organic production systems (ORG) at different years of cultivation (2, 6, 8 and 10?years), and a continuous monoculture corn cropping system (CC). An area of native Cerrado (?Savanna?, CE) was selected and sampled for use as a steady state reference point. Resilience of soil organic C was measured based on calculation of the C resilience index and C management index. Soil C stocks in the 0-0.40?m depth varied from 61 to 111?Mg ha?1 and were reduced by 33% when converting from CE to cultivation regardless of management system. The labile C contents varied from 425 to 900?mg kg?1, and increased when PAST soils were converted to ORG cultivation. The highest values of C resilience and management indexes occurred in the ORG-2 and ORG-6 soils, showing that organic systems can recover organic C levels in the soil faster than other agricultural systems. On the other hand, no-tillage system when converted from pasture presents the lowest potential of soil C resilience in short-term in the site-specific conditions of studied Cerrado of Goiás State. MenosAgricultural expansion directly impacts the dynamics of organic carbon (C) in the soil. After land use change, agricultural systems with greater resilience of soil C stocks could be preferentially adopted. The objective of the present study was to determine the impact of short-term conversion of grassland into different agricultural systems on soil organic C stocks and their resilience in a site-specific region of Brazilian Cerrado in the State of Goiás. The following systems were evaluated: pasture (PAST), no-tillage system (NT), four organic production systems (ORG) at different years of cultivation (2, 6, 8 and 10?years), and a continuous monoculture corn cropping system (CC). An area of native Cerrado (?Savanna?, CE) was selected and sampled for use as a steady state reference point. Resilience of soil organic C was measured based on calculation of the C resilience index and C management index. Soil C stocks in the 0-0.40?m depth varied from 61 to 111?Mg ha?1 and were reduced by 33% when converting from CE to cultivation regardless of management system. The labile C contents varied from 425 to 900?mg kg?1, and increased when PAST soils were converted to ORG cultivation. The highest values of C resilience and management indexes occurred in the ORG-2 and ORG-6 soils, showing that organic systems can recover organic C levels in the soil faster than other agricultural systems. On the other hand, no-tillage system when converted from pasture presents the lowest potential of s... Mostrar Tudo |
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Thesagro: |
Carbono; Cerrado. |
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Categoria do assunto: |
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Marc: |
LEADER 02173naa a2200181 a 4500
001 2143605
005 2022-06-01
008 2022 bl uuuu u00u1 u #d
100 1 $aDIAS, F. P. M.
245 $aImpact of short-term land-use change on soil organic carbon dynamics in transitional agro-ecosystems$ba case study in the Brazilian Cerrado.$h[electronic resource]
260 $c2022
520 $aAgricultural expansion directly impacts the dynamics of organic carbon (C) in the soil. After land use change, agricultural systems with greater resilience of soil C stocks could be preferentially adopted. The objective of the present study was to determine the impact of short-term conversion of grassland into different agricultural systems on soil organic C stocks and their resilience in a site-specific region of Brazilian Cerrado in the State of Goiás. The following systems were evaluated: pasture (PAST), no-tillage system (NT), four organic production systems (ORG) at different years of cultivation (2, 6, 8 and 10?years), and a continuous monoculture corn cropping system (CC). An area of native Cerrado (?Savanna?, CE) was selected and sampled for use as a steady state reference point. Resilience of soil organic C was measured based on calculation of the C resilience index and C management index. Soil C stocks in the 0-0.40?m depth varied from 61 to 111?Mg ha?1 and were reduced by 33% when converting from CE to cultivation regardless of management system. The labile C contents varied from 425 to 900?mg kg?1, and increased when PAST soils were converted to ORG cultivation. The highest values of C resilience and management indexes occurred in the ORG-2 and ORG-6 soils, showing that organic systems can recover organic C levels in the soil faster than other agricultural systems. On the other hand, no-tillage system when converted from pasture presents the lowest potential of soil C resilience in short-term in the site-specific conditions of studied Cerrado of Goiás State.
650 $aCarbono
650 $aCerrado
700 1 $aLEANDRO, W. M.
700 1 $aFERNANDES, P. M.
700 1 $aXAVIER, F. A. da S.
773 $tCarbon Managemen$gv. 13, Issue 1, 2022.
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Embrapa Mandioca e Fruticultura (CNPMF) |
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| 11. |  | OLIVEIRA, N. T.; LIMA, J. M. E.; SMIDERLE, O. J.; ALVES, J. M. A. Caracterização morfológica e culinária de dois clones de mandioca cultivados em Boa Vista, Roraima. In: CONGRESSO BRASILEIRO DE MANDIOCA, 14.; FEIRA BRASILEIRA DA MANDIOCA, 1., 2011, Maceió. Mandioca: fonte de alimento e energia: anais. Maceió: ABAM: SBM, 2011.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Roraima. |
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| 15. | | OLIVEIRA, N. T. de; NODA, R. W.; LANA, U. G. de P.; ZANDONADI, D. B.; SOUSA, S. M. de. Humic substances regulate auxin-related genes and plasma membrane h+-ATPase activity during maize root development. In: SIMPÓSIO LATINO-AMERICANO SOBRE BIOESTIMULANTES NA AGRICULTURA, 2.; REUNIÃO BRASILEIRA SOBRE INDUÇÃO DE RESISTÊNCIA EM PLANTAS E PATÓGENOS, 9., 2018, Florianópolis. Anais. Florianópolis: Universidade Federal de Santa Catarina, 2018. p. 170.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 16. | | OLIVEIRA, N. T. E. de; FONSECA, J. B.; SOARES, R. da T. R. N.; FERREIRA, K. S. Triglicerídeos sangüíneos e composição química da carne de codornas alimentadas com bixina e niacina suplementar. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 41, n. 8, p. 1227-1233, ago. 2006 Título em inglês: Plasma triglycerides and chemical composition of quail?s meat fed on bixin and supplementary niacin.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 17. | | OLIVEIRA, N. T.; ANDRADE, J. G. M.; MANDARINO, J. M. G.; SILVA, I. C.; BORDINGNON, J. R.; GIORDANO, G. S. M.; DOMIT, L. A.; ZAMBUDIO, S. T. Difusao da soja e seus derivados para o uso na alimentacao humana. In: REUNIAO DE PESQUISA DE SOJA DA REGIAO CENTRAL DO BRASIL, 18., 1996, Uberlandia. Ata e resumos. Uberlandia: UFU / DEAGRO, 1997. p.266.| Biblioteca(s): Embrapa Soja. |
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| 18. | | AIALA, J. G. E. A. R.; NOGUEIRA, L.; BERNARDES, G. A. P.; MELVILLE, C. C.; OLIVEIRA, N. T.; SOUZA, T. L. P. O. Attractiveness and injury of Phaseolus vulgaris L. genotypes by Anticarsia gemmatalis Hübner (Lepidoptera: Erebidae). Annual Report of the Bean Improvement Cooperative, Prosser, v. 61, p. 183-184, Apr. 2018.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 3 |
| Biblioteca(s): Embrapa Arroz e Feijão. |
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| 19. | | OLIVEIRA, N. T. de; UCHÔA, S. C. P.; ALVES, J. M. A.; SEDIYAMA, T.; ALBUQUERQUE, J. DE A. A. de; SOUZA, E. D.; MELVILLE, C. C. Ácido cianídrico em tecidos de mandioca em função da idade da planta e adubação nitrogenada. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 47, n. 10, p. 1436-1442, out. 2012. Título em inglês: Hydrocyanic acid content in cassava tissues as a function of evaluation time and nitrogen fertilization.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 20. | | CARVALHO, C.; ANDRADE, D. L.; OLIVEIRA, N. T.; OLIVEIRA-PAIVA, C. A.; MARRIEL, I. E.; GOMES, E. A.; LANA, U. G. P.; SOUSA, S. M. de. Evaluating the effects of microorganism biostimulants in maize to improve plant growth. In: LATIN-AMERICAN CONFERENCE ON PLANT PHENOTYPING AND PHENOMICS FOR PLANT BREEDING, 2., 2017, São Carlos. Proceedings. São Carlos: Embrapa Instrumentação, 2017. p. 69.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| Registros recuperados : 25 | |
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