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![](/consulta/web/img/deny.png) | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
Registro Completo |
Biblioteca(s): |
Embrapa Amazônia Oriental. |
Data corrente: |
04/09/2017 |
Data da última atualização: |
22/12/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
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. |
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. |
Título: |
Continuous soil carbon storage of old permanent pastures in Amazonia. |
Ano de publicação: |
2017 |
Fonte/Imprenta: |
Global Change Biology, v. 23, n. 8, p. 3382-3392, Aug. 2017. |
DOI: |
10.1111/gcb.13573 |
Idioma: |
Inglês |
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 |
Palavras-Chave: |
Armazenamento de carbono; Solo profundo. |
Thesagro: |
Floresta Nativa; Pastagem; Pastagem Mista. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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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Embrapa Amazônia Oriental (CPATU) |
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Biblioteca(s): |
Embrapa Pantanal. |
Data corrente: |
07/01/2019 |
Data da última atualização: |
11/03/2019 |
Tipo da produção científica: |
Artigo de Divulgação na Mídia |
Autoria: |
TOMAS, W. M.; NUNES, A. P.; SALIS, S. M. de; FERREIRA, V. L.; FARINACCIO, M. A.; SANTANA, D. J. |
Afiliação: |
WALFRIDO MORAES TOMAS, CPAP; ALESSANDRO PACHECO NUNES; SUZANA MARIA DE SALIS, CPAP; VANDA LUCIA FERREIRA; MARIA ANA FARINACCIO; DIEGO JOSÉ SANTANA. |
Título: |
A riqueza vem de fora. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
Ciência Pantanal, v. 4, n.1, p. 43-50, 2018. |
Idioma: |
Português |
Conteúdo: |
Discorre sobre a riqueza de fora e fauna do Pantanal que pode ser creditada ao conjunto diversificado e altamente produtivo de ambientes da planície, com fartura de água e nutrientes para as mais variadas espécies. |
Thesagro: |
Biodiversidade. |
Thesaurus NAL: |
Biodiversity. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/189869/1/ADM-tomas-et-al.-2018-a-riqueza-vem-de-fora.pdf
|
Marc: |
LEADER 00726nam a2200193 a 4500 001 2103182 005 2019-03-11 008 2018 bl uuuu u00u1 u #d 100 1 $aTOMAS, W. M. 245 $aA riqueza vem de fora.$h[electronic resource] 260 $aCiência Pantanal, v. 4, n.1, p. 43-50$c2018 520 $aDiscorre sobre a riqueza de fora e fauna do Pantanal que pode ser creditada ao conjunto diversificado e altamente produtivo de ambientes da planície, com fartura de água e nutrientes para as mais variadas espécies. 650 $aBiodiversity 650 $aBiodiversidade 700 1 $aNUNES, A. P. 700 1 $aSALIS, S. M. de 700 1 $aFERREIRA, V. L. 700 1 $aFARINACCIO, M. A. 700 1 $aSANTANA, D. J.
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