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Registro Completo |
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Biblioteca(s): |
Embrapa Agropecuária Oeste. |
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Data corrente: |
03/03/1995 |
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Data da última atualização: |
04/05/2007 |
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Autoria: |
ARAUJO, R. S. |
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Título: |
Quantificação da competitividade nodular de Rhizobium e Bradyrhizobium. |
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Ano de publicação: |
1994 |
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Fonte/Imprenta: |
In: HUNGRIA, M.; ARAUJO, R. S. (Ed.). Manual de métodos empregados em estudos de microbiologia agrícola. Brasília, DF: EMBRAPA-SPI; Goiânia: EMBRAPA-CNPAF; Londrina: EMBRAPA-CNPSO, 1994. |
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Páginas: |
p. 239-248. |
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Série: |
(EMBRAPA-CNPAF. Documentos, 46). |
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Idioma: |
Português |
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Palavras-Chave: |
Competicao. |
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Thesagro: |
Bactéria; Nodulação; População; Rhizobium. |
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Thesaurus Nal: |
Bradyrhizobium. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00691nam a2200193 a 4500
001 1238052
005 2007-05-04
008 1994 bl uuuu 00u1 u #d
100 1 $aARAUJO, R. S.
245 $aQuantificação da competitividade nodular de Rhizobium e Bradyrhizobium.
260 $aIn: HUNGRIA, M.; ARAUJO, R. S. (Ed.). Manual de métodos empregados em estudos de microbiologia agrícola. Brasília, DF: EMBRAPA-SPI; Goiânia: EMBRAPA-CNPAF; Londrina: EMBRAPA-CNPSO$c1994
300 $ap. 239-248.
490 $a(EMBRAPA-CNPAF. Documentos, 46).
650 $aBradyrhizobium
650 $aBactéria
650 $aNodulação
650 $aPopulação
650 $aRhizobium
653 $aCompeticao
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Registro original: |
Embrapa Agropecuária Oeste (CPAO) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
04/09/2017 |
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Data da última atualização: |
22/12/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
STAHL, C.; FONTAINE, S.; KLUMPP, K.; PICON-COCHARD, C.; GRISE, M. M.; DEZÉCACHE, C.; PONCHANT, l.; FREYCON, V.; BLANC, L.; BONAL, D.; BURBAN, B.; SOUSSANA, J.-F.; BLANFORT, V. |
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Afiliação: |
CLÉMENT STAHL, CIRAD / University of Antwer / INRA; SÉBASTIEN FONTAINE, INRA; KATJA KLUMPP, INRA; CATHERINE PICON-COCHARD, INRA; MARCIA MASCARENHAS GRISE, CPATU; CAMILLE DEZÉCACHE, CIRAD; LISE PONCHANT, CIRAD; VINCENT FREYCON, CIRAD; LILIAN BLANC, CIRAD; DAMIEN BONAL, INRA; BENOIT BURBAN, INRA; JEAN-FRANÇOIS SOUSSANA, INRA; VINCENT BLANFORT, CIRAD. |
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Título: |
Continuous soil carbon storage of old permanent pastures in Amazonia. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Global Change Biology, v. 23, n. 8, p. 3382-3392, Aug. 2017. |
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DOI: |
10.1111/gcb.13573 |
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Idioma: |
Inglês |
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Conteúdo: |
Amazonian forests continuously accumulate carbon (C) in biomass and in soil, representing a carbon sink of 0.42?0.65 GtC yr−1. In recent decades, more than 15% of Amazonian forests have been converted into pastures, resulting in net C emissions (~200 tC ha−1) due to biomass burning and litter mineralization in the first years after deforestation. However, little is known about the capacity of tropical pastures to restore a C sink. Our study shows in French Amazonia that the C storage observed in native forest can be partly restored in old (≥24 year) tropical pastures managed with a low stocking rate (±1 LSU ha−1) and without the use of fire since their establishment. A unique combination of a large chronosequence study and eddy covariance measurements showed that pastures stored between −1.27 ± 0.37 and −5.31 ± 2.08 tC ha−1 yr−1 while the nearby native forest stored −3.31 ± 0.44 tC ha−1 yr−1. This carbon is mainly sequestered in the humus of deep soil layers (20?100 cm), whereas no C storage was observed in the 0- to 20-cm layer. C storage in C4 tropical pasture is associated with the installation and development of C3 species, which increase either the input of N to the ecosystem or the C:N ratio of soil organic matter. Efforts to curb deforestation remain an obvious priority to preserve forest C stocks and biodiversity. However, our results show that if sustainable management is applied in tropical pastures coming from deforestation (avoiding fires and overgrazing, using a grazing rotation plan and a mixture of C3 and C4 species), they can ensure a continuous C storage, thereby adding to the current C sink of Amazonian forests. MenosAmazonian forests continuously accumulate carbon (C) in biomass and in soil, representing a carbon sink of 0.42?0.65 GtC yr−1. In recent decades, more than 15% of Amazonian forests have been converted into pastures, resulting in net C emissions (~200 tC ha−1) due to biomass burning and litter mineralization in the first years after deforestation. However, little is known about the capacity of tropical pastures to restore a C sink. Our study shows in French Amazonia that the C storage observed in native forest can be partly restored in old (≥24 year) tropical pastures managed with a low stocking rate (±1 LSU ha−1) and without the use of fire since their establishment. A unique combination of a large chronosequence study and eddy covariance measurements showed that pastures stored between −1.27 ± 0.37 and −5.31 ± 2.08 tC ha−1 yr−1 while the nearby native forest stored −3.31 ± 0.44 tC ha−1 yr−1. This carbon is mainly sequestered in the humus of deep soil layers (20?100 cm), whereas no C storage was observed in the 0- to 20-cm layer. C storage in C4 tropical pasture is associated with the installation and development of C3 species, which increase either the input of N to the ecosystem or the C:N ratio of soil organic matter. Efforts to curb deforestation remain an obvious priority to preserve forest C stocks and biodiversity. However, our results show that if sustainable management is applied in tropical pastures ... Mostrar Tudo |
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Palavras-Chave: |
Armazenamento de carbono; Solo profundo. |
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Thesagro: |
Floresta Nativa; Pastagem; Pastagem Mista. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02644naa a2200337 a 4500
001 2074984
005 2021-12-22
008 2017 bl uuuu u00u1 u #d
024 7 $a10.1111/gcb.13573$2DOI
100 1 $aSTAHL, C.
245 $aContinuous soil carbon storage of old permanent pastures in Amazonia.$h[electronic resource]
260 $c2017
520 $aAmazonian forests continuously accumulate carbon (C) in biomass and in soil, representing a carbon sink of 0.42?0.65 GtC yr−1. In recent decades, more than 15% of Amazonian forests have been converted into pastures, resulting in net C emissions (~200 tC ha−1) due to biomass burning and litter mineralization in the first years after deforestation. However, little is known about the capacity of tropical pastures to restore a C sink. Our study shows in French Amazonia that the C storage observed in native forest can be partly restored in old (≥24 year) tropical pastures managed with a low stocking rate (±1 LSU ha−1) and without the use of fire since their establishment. A unique combination of a large chronosequence study and eddy covariance measurements showed that pastures stored between −1.27 ± 0.37 and −5.31 ± 2.08 tC ha−1 yr−1 while the nearby native forest stored −3.31 ± 0.44 tC ha−1 yr−1. This carbon is mainly sequestered in the humus of deep soil layers (20?100 cm), whereas no C storage was observed in the 0- to 20-cm layer. C storage in C4 tropical pasture is associated with the installation and development of C3 species, which increase either the input of N to the ecosystem or the C:N ratio of soil organic matter. Efforts to curb deforestation remain an obvious priority to preserve forest C stocks and biodiversity. However, our results show that if sustainable management is applied in tropical pastures coming from deforestation (avoiding fires and overgrazing, using a grazing rotation plan and a mixture of C3 and C4 species), they can ensure a continuous C storage, thereby adding to the current C sink of Amazonian forests.
650 $aFloresta Nativa
650 $aPastagem
650 $aPastagem Mista
653 $aArmazenamento de carbono
653 $aSolo profundo
700 1 $aFONTAINE, S.
700 1 $aKLUMPP, K.
700 1 $aPICON-COCHARD, C.
700 1 $aGRISE, M. M.
700 1 $aDEZÉCACHE, C.
700 1 $aPONCHANT, l.
700 1 $aFREYCON, V.
700 1 $aBLANC, L.
700 1 $aBONAL, D.
700 1 $aBURBAN, B.
700 1 $aSOUSSANA, J.-F.
700 1 $aBLANFORT, V.
773 $tGlobal Change Biology$gv. 23, n. 8, p. 3382-3392, Aug. 2017.
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