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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão; Embrapa Cerrados. |
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Data corrente: |
15/03/2016 |
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Data da última atualização: |
15/03/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CORBEELS, M.; MARCHAO, R. L.; SIQUEIRA NETO, M.; FERREIRA, E. G.; MADARI, B. E.; SCOPEL, E.; BRITO, O. R. |
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Afiliação: |
MARC CORBEELS, CIRAD; ROBELIO LEANDRO MARCHAO, CPAC; MARCOS SIQUEIRA NETO, USP; ELIANN GARCIA FERREIRA, UEL; BEATA EMOKE MADARI, CNPAF; ERIC SCOPEL, CIRAD; OSMAR RODRIGUES BRITO, UEL. |
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Título: |
Evidence of limited carbon sequestration in soils under no-tillage systems in the Cerrado of Brazil. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Scientific Reports, n. 6, article 21450, 2016. |
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DOI: |
10.1038/srep21450 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: The Brazilian government aims at augmenting the area cropped under no-tillage (NT) from 32 to 40 million ha by 2020 as a means to mitigate CO2 emissions. We estimated soil carbon (C) sequestration under continuous NT systems in two municipalities in the Goiás state that are representative of the Cerrado. A chronosequence of NT fields of different age since conversion from conventional tillage (CT) was sampled in 2003 and 2011. Soil C levels of native Cerrado and pasture were measured for comparison. After about 11 to 14 years, soil C stocks under NT were highest and at the levels of those under natural Cerrado. Average annual rates of soil C sequestration estimated using the chronosequence approach were respectively 1.61 and 1.48 Mg C ha-1 yr-1 for the 2003 and 2011 sampling, and were higher than those observed using repeated sampling after eight years. The diachronic sampling revealed that the younger NT fields tended to show higher increases in soil C stocks than the older fields. Converting an extra 8 million ha of cropland from CT to NT represents an estimated soil C storage of about 8 Tg C yr-1 during 10 to 15 years. |
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Palavras-Chave: |
Emissão de gases; Goiás; Sequestro de carbono. |
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Thesagro: |
Carbono; Cerrado; Plantio direto. |
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Thesaurus Nal: |
Brazil; Carbon sequestration; Gas emissions; No-tillage; Savannas. |
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Categoria do assunto: |
W Química e Física |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/141210/1/Corbeels-et-al-Nat-Sci-Rep.pdf
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Marc: |
LEADER 02079naa a2200337 a 4500
001 2041035
005 2016-03-15
008 2016 bl uuuu u00u1 u #d
024 7 $a10.1038/srep21450$2DOI
100 1 $aCORBEELS, M.
245 $aEvidence of limited carbon sequestration in soils under no-tillage systems in the Cerrado of Brazil.$h[electronic resource]
260 $c2016
520 $aAbstract: The Brazilian government aims at augmenting the area cropped under no-tillage (NT) from 32 to 40 million ha by 2020 as a means to mitigate CO2 emissions. We estimated soil carbon (C) sequestration under continuous NT systems in two municipalities in the Goiás state that are representative of the Cerrado. A chronosequence of NT fields of different age since conversion from conventional tillage (CT) was sampled in 2003 and 2011. Soil C levels of native Cerrado and pasture were measured for comparison. After about 11 to 14 years, soil C stocks under NT were highest and at the levels of those under natural Cerrado. Average annual rates of soil C sequestration estimated using the chronosequence approach were respectively 1.61 and 1.48 Mg C ha-1 yr-1 for the 2003 and 2011 sampling, and were higher than those observed using repeated sampling after eight years. The diachronic sampling revealed that the younger NT fields tended to show higher increases in soil C stocks than the older fields. Converting an extra 8 million ha of cropland from CT to NT represents an estimated soil C storage of about 8 Tg C yr-1 during 10 to 15 years.
650 $aBrazil
650 $aCarbon sequestration
650 $aGas emissions
650 $aNo-tillage
650 $aSavannas
650 $aCarbono
650 $aCerrado
650 $aPlantio direto
653 $aEmissão de gases
653 $aGoiás
653 $aSequestro de carbono
700 1 $aMARCHAO, R. L.
700 1 $aSIQUEIRA NETO, M.
700 1 $aFERREIRA, E. G.
700 1 $aMADARI, B. E.
700 1 $aSCOPEL, E.
700 1 $aBRITO, O. R.
773 $tScientific Reports$gn. 6, article 21450, 2016.
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Embrapa Cerrados (CPAC) |
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| 1. |  | CORBEELS, M.; MARCHAO, R. L.; SIQUEIRA NETO, M.; FERREIRA, E. G.; MADARI, B. E.; SCOPEL, E.; BRITO, O. R. Evidence of limited carbon sequestration in soils under no-tillage systems in the Cerrado of Brazil. Scientific Reports, n. 6, article 21450, 2016.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Arroz e Feijão; Embrapa Cerrados. |
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