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 | Acesso ao texto completo restrito à biblioteca da Embrapa Mandioca e Fruticultura. Para informações adicionais entre em contato com cnpmf.biblioteca@embrapa.br. |
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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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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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Registro Completo
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Biblioteca(s): |
Embrapa Recursos Genéticos e Biotecnologia. |
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Data corrente: |
21/03/2009 |
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Data da última atualização: |
08/05/2024 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
GAVIÃO, C. F. C.; SUJII, P. S.; INGLIS, P. W.; CIAMPI, A. Y. |
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Afiliação: |
CAMILA DE FÁTIMA COELHO GAVIÃO; PATRÍCIA SANAE SUJJI; PETER WARD INGLIS; ANA YAMAGUISHI CIAMPI, EMBRAPA RECURSOS GENÉTICOS E BIOTECNOLOGIA. |
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Título: |
Análise genética em populações de Sinningia lineata (Hjelmq) Chautems utilizando marcadores moleculares RAPD. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE GENÉTICA, 54., 2008, Salvador. Resumos... Salvador: SBG, 2008. |
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Descrição Física: |
1 CD-ROM. |
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Idioma: |
Português |
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Palavras-Chave: |
Rainha-doabismo; Sinningia lineata; Variabilidade genética. |
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Thesagro: |
Conservação. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00644nam a2200193 a 4500
001 1190983
005 2024-05-08
008 2008 bl uuuu u01u1 u #d
100 1 $aGAVIÃO, C. F. C.
245 $aAnálise genética em populações de Sinningia lineata (Hjelmq) Chautems utilizando marcadores moleculares RAPD.
260 $aIn: CONGRESSO BRASILEIRO DE GENÉTICA, 54., 2008, Salvador. Resumos... Salvador: SBG$c2008
300 $c1 CD-ROM.
650 $aConservação
653 $aRainha-doabismo
653 $aSinningia lineata
653 $aVariabilidade genética
700 1 $aSUJII, P. S.
700 1 $aINGLIS, P. W.
700 1 $aCIAMPI, A. Y.
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Embrapa Recursos Genéticos e Biotecnologia (CENARGEN) |
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