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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. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
26/06/2013 |
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Data da última atualização: |
07/11/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
TELLES, E. de C. C.; CAMARGO, P. B. de; MARTINELLI, L. A.; TRUMBORE, S. E.; COSTA, E. S. da; SANTOS, J.; HIGUCHI, N.; OLIVEIRA JUNIOR, R. C. |
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Afiliação: |
Everaldo de Carvalho Conceição Telles, CENA/USP; Plínio Barbosa de Camargo, CENA/USP; Luiz A. Martinelli, CENA/USP; Susan E. Trumbore, University of California; Enir Salazar da Costa, University of California; JOAQUIM SANTOS, INPA; Niro Higuchi, INPA; RAIMUNDO COSME DE OLIVEIRA JUNIOR, CPATU. |
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Título: |
Influence of soil texture on carbon dynamics and storage potential in tropical forest soils of Amazonia. |
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Ano de publicação: |
2003 |
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Fonte/Imprenta: |
Global Biogeochemical Cycles, v. 17, n. 2, Jun. 2003. |
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DOI: |
10.1029/2002GB001953 |
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Idioma: |
Inglês |
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Conteúdo: |
Stable and radiocarbon isotopes were used to investigate the role of soil clay content in the storage and dynamics of soil carbon in tropical forest soils. Organic matter in clay-rich Oxisols and Ultisols contains at least two distinct components: (1) material with light δ13C signatures and turnover times of decades or less; and (2) clay-associated, 13C-enriched, carbon with turnover times of decades at the surface to millennia at depths >20 cm. Soil texture, in this case clay content, exerts a major control on the amount of slowly cycling carbon and therefore influences the storage and dynamics of carbon in tropical forest soils. Soils in primary tropical forest have been proposed as a potentially large sink for anthropogenic carbon. Comparison of carbon stocks in Oxisols sampled near Manaus, Brazil, shows no measurable change in organic carbon stocks over the past 20 years. Simple models estimating the response of soil carbon pools to a sustained 0.5% yr−1 increase in productivity result in C storage rates of 0.09 to 0.13 MgC ha−1 yr8722;1 in soil organic matter, with additional potential storage of 0.18 to 0.27 MgC ha−1 yr−1 in surface litter and roots. Most storage occurs in organic matter pools with turnover times less than a decade. Export of carbon in dissolved form from upland terra firme Oxisols likely accounts for <0.2 MgC ha8722;1 yr8722;1, but more work is required to assess the export potential for periodically inundated Spodosols. |
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Palavras-Chave: |
Ciclo de carbono. |
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Thesagro: |
Carbono; Decomposição; Solo; Solo Tropical; Textura. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02342naa a2200289 a 4500
001 1960656
005 2022-11-07
008 2003 bl uuuu u00u1 u #d
024 7 $a10.1029/2002GB001953$2DOI
100 1 $aTELLES, E. de C. C.
245 $aInfluence of soil texture on carbon dynamics and storage potential in tropical forest soils of Amazonia.$h[electronic resource]
260 $c2003
520 $aStable and radiocarbon isotopes were used to investigate the role of soil clay content in the storage and dynamics of soil carbon in tropical forest soils. Organic matter in clay-rich Oxisols and Ultisols contains at least two distinct components: (1) material with light δ13C signatures and turnover times of decades or less; and (2) clay-associated, 13C-enriched, carbon with turnover times of decades at the surface to millennia at depths >20 cm. Soil texture, in this case clay content, exerts a major control on the amount of slowly cycling carbon and therefore influences the storage and dynamics of carbon in tropical forest soils. Soils in primary tropical forest have been proposed as a potentially large sink for anthropogenic carbon. Comparison of carbon stocks in Oxisols sampled near Manaus, Brazil, shows no measurable change in organic carbon stocks over the past 20 years. Simple models estimating the response of soil carbon pools to a sustained 0.5% yr−1 increase in productivity result in C storage rates of 0.09 to 0.13 MgC ha−1 yr8722;1 in soil organic matter, with additional potential storage of 0.18 to 0.27 MgC ha−1 yr−1 in surface litter and roots. Most storage occurs in organic matter pools with turnover times less than a decade. Export of carbon in dissolved form from upland terra firme Oxisols likely accounts for <0.2 MgC ha8722;1 yr8722;1, but more work is required to assess the export potential for periodically inundated Spodosols.
650 $aCarbono
650 $aDecomposição
650 $aSolo
650 $aSolo Tropical
650 $aTextura
653 $aCiclo de carbono
700 1 $aCAMARGO, P. B. de
700 1 $aMARTINELLI, L. A.
700 1 $aTRUMBORE, S. E.
700 1 $aCOSTA, E. S. da
700 1 $aSANTOS, J.
700 1 $aHIGUCHI, N.
700 1 $aOLIVEIRA JUNIOR, R. C.
773 $tGlobal Biogeochemical Cycles$gv. 17, n. 2, Jun. 2003.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Pantanal. Para informações adicionais entre em contato com cpap.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
04/08/2010 |
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Data da última atualização: |
11/05/2011 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
PAUVOLID-CORRÊA, A.; TAVARES, F. N.; ALENCAR, J.; SILVA, J. dos S.; MURTA, M.; SERRA-FREIRE, N. M.; PELLEGRIN, A. O.; GIL-SANTANA, H.; GUIMARÃES, A. E.; SILVA, E. E. da. |
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Afiliação: |
ALEX PAUVOLID-CORRÊA, FUNDAÇÃO OSWALDO CRUZ; FERNANDO NETO TAVARES, FUNDAÇÃO OSWALDO CRUZ; JERONIMO ALENCAR, FUNDAÇÃO OSWALDO CRUZ; JULIA DOS SANTOS SILVA, FUNDAÇÃO OSWALDO CRUZ; MICHELE MURTA, FUNDAÇÃO OSWALDO CRUZ; NICOLAU MAUÉS SERRA-FREIRE, FUNDAÇÃO OSWALDO CRUZ; AIESCA OLIVEIRA PELLEGRIN, CPAP; HÉLCIO GIL-SANTANA, FUNDAÇÃO OSWALDO CRUZ; ANTHONY ÉRICO GUIMARÃES, FUNDAÇÃO OSWALDO CRUZ; EDSON ELIAS DA SILVA. |
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Título: |
Preliminary investigation of culicidae species in South Pantanal, Brazil and their potential importance in arbovirus transmission. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
Revista do Instituto de Medicina Tropical de São Paulo, v. 52, n. 1, p. 17-23, Jan/ fev. 2010. |
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DOI: |
10.1590/S0036-46652010000100004 |
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Idioma: |
Inglês |
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Conteúdo: |
In view of the high circulation of migratory birds and the environmental and climatic conditions which favor the proliferation of arthropods, the Brazilian Pantanal is susceptible to circulation of arboviruses. However, the amount of data concerning arbovirus
vectors in this area is scarce; therefore the aim of this study was to conduct a preliminary investigation of Culicidae species in the
Nhecolândia Sub-region of South Pantanal, Brazil and their potential importance in the arbovirus transmission. A total of 3684 specimens of mosquitoes were captured, 1689 of which caught in the rainy season of 2007, were divided into 78 pools and submitted
to viral isolation, Semi-Nested RT-PCR and Nested RT-PCR, with a view to identifying the most important arboviruses in Brazil. Simultaneously, 70 specimens of ticks found blood-feeding on horses were also submitted to the same virological assays. No virus was isolated and viral nucleic-acid detection by RT-PCR was also negative. Nevertheless, a total of 22 Culicidae species were identified, ten of which had previously been reported as vectors of important arboviruses. The diversity of species found blood-feeding on human and horse hosts together with the arboviruses circulation previously reported suggest that the Nhecolândia Sub-region of South Pantanal is an important area for arbovirus surveillance in Brazil. |
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Palavras-Chave: |
Arbovirus; Nhecolândia. |
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Thesaurus NAL: |
Culicidae; Pantanal; ticks. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02300naa a2200301 a 4500
001 1859207
005 2011-05-11
008 2010 bl --- 0-- u #d
024 7 $a10.1590/S0036-46652010000100004$2DOI
100 1 $aPAUVOLID-CORRÊA, A.
245 $aPreliminary investigation of culicidae species in South Pantanal, Brazil and their potential importance in arbovirus transmission.
260 $c2010
520 $aIn view of the high circulation of migratory birds and the environmental and climatic conditions which favor the proliferation of arthropods, the Brazilian Pantanal is susceptible to circulation of arboviruses. However, the amount of data concerning arbovirus vectors in this area is scarce; therefore the aim of this study was to conduct a preliminary investigation of Culicidae species in the Nhecolândia Sub-region of South Pantanal, Brazil and their potential importance in the arbovirus transmission. A total of 3684 specimens of mosquitoes were captured, 1689 of which caught in the rainy season of 2007, were divided into 78 pools and submitted to viral isolation, Semi-Nested RT-PCR and Nested RT-PCR, with a view to identifying the most important arboviruses in Brazil. Simultaneously, 70 specimens of ticks found blood-feeding on horses were also submitted to the same virological assays. No virus was isolated and viral nucleic-acid detection by RT-PCR was also negative. Nevertheless, a total of 22 Culicidae species were identified, ten of which had previously been reported as vectors of important arboviruses. The diversity of species found blood-feeding on human and horse hosts together with the arboviruses circulation previously reported suggest that the Nhecolândia Sub-region of South Pantanal is an important area for arbovirus surveillance in Brazil.
650 $aCulicidae
650 $aPantanal
650 $aticks
653 $aArbovirus
653 $aNhecolândia
700 1 $aTAVARES, F. N.
700 1 $aALENCAR, J.
700 1 $aSILVA, J. dos S.
700 1 $aMURTA, M.
700 1 $aSERRA-FREIRE, N. M.
700 1 $aPELLEGRIN, A. O.
700 1 $aGIL-SANTANA, H.
700 1 $aGUIMARÃES, A. E.
700 1 $aSILVA, E. E. da
773 $tRevista do Instituto de Medicina Tropical de São Paulo$gv. 52, n. 1, p. 17-23, Jan/ fev. 2010.
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