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Registro Completo |
Biblioteca(s): |
Embrapa Amazônia Oriental; Embrapa Meio Ambiente. |
Data corrente: |
30/09/2011 |
Data da última atualização: |
04/10/2011 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
SOUSA, E. dos S.; SALIMON, C. I.; FIGUEIREDO, R. de O.; KRUSCHE, A. V. |
Afiliação: |
Eliete dos Santos Sousa, UFPA; Cleber Ibraim Salimon, UFAC; RICARDO DE OLIVEIRA FIGUEIREDO, CNPMA; Alex Vladimir Krusche, CENA/USP. |
Título: |
Dissolved carbon in an urban area of a river in the Brazilian Amazon. |
Ano de publicação: |
2011 |
Fonte/Imprenta: |
Biogeochemistry, Dordrecht, v. 105, p. 159-170, 2011. |
Idioma: |
Inglês |
Conteúdo: |
The main objective of this study was to evaluate dissolved organic and inorganic carbon dynamics along upstream and downstream reaches of the Acre River draining the city of Rio Branco, in the state of Acre, Brazil. Dissolved organic carbon (DOC) concentrations in the Acre River were significantly higher during the wet season, ranging from 385 ± 160 to 430 ± 131 IJM among the stations, with no difference in upstream and downstream concentrations. Dissolved inorganic carbon (DIC) showed an inverse pattern, with higher concentrations in the dry season, ranging from 816 ± 215 to 998 ± 754 IJM among the stations, as well as no difference in upstream and downstream DIC concentrations. Bicarbonate was the dorninant DIC fraction and was mainly observed during the dry season. Due to lower pH values during the wet season, CO2 partial pressure (PC02) in the Acre Ri ver was higher in the wet season, with values ranging from 4,567 ± 1,813 to 4,893 ± 837 ppm among the stations. Our results indicate that, although the Acre River drains a large city with significant sewage disposal into the river, seasonal hydrological processes are the main driver of dissolved carbon dynarnics, even in the downstream study reach directly influenced by urbanization. |
Palavras-Chave: |
Acre River; Amazon; Carbono dissolvido; Dissolved carbon; Seasonal variations; Urban impacts; Variações sazonais. |
Thesagro: |
Carbono; Qualidade da água; Rio. |
Thesaurus Nal: |
Dissolved organic carbon; Rivers; Seasonal variation. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
Marc: |
LEADER 02130naa a2200313 a 4500 001 1901878 005 2011-10-04 008 2011 bl uuuu u00u1 u #d 100 1 $aSOUSA, E. dos S. 245 $aDissolved carbon in an urban area of a river in the Brazilian Amazon.$h[electronic resource] 260 $c2011 520 $aThe main objective of this study was to evaluate dissolved organic and inorganic carbon dynamics along upstream and downstream reaches of the Acre River draining the city of Rio Branco, in the state of Acre, Brazil. Dissolved organic carbon (DOC) concentrations in the Acre River were significantly higher during the wet season, ranging from 385 ± 160 to 430 ± 131 IJM among the stations, with no difference in upstream and downstream concentrations. Dissolved inorganic carbon (DIC) showed an inverse pattern, with higher concentrations in the dry season, ranging from 816 ± 215 to 998 ± 754 IJM among the stations, as well as no difference in upstream and downstream DIC concentrations. Bicarbonate was the dorninant DIC fraction and was mainly observed during the dry season. Due to lower pH values during the wet season, CO2 partial pressure (PC02) in the Acre Ri ver was higher in the wet season, with values ranging from 4,567 ± 1,813 to 4,893 ± 837 ppm among the stations. Our results indicate that, although the Acre River drains a large city with significant sewage disposal into the river, seasonal hydrological processes are the main driver of dissolved carbon dynarnics, even in the downstream study reach directly influenced by urbanization. 650 $aDissolved organic carbon 650 $aRivers 650 $aSeasonal variation 650 $aCarbono 650 $aQualidade da água 650 $aRio 653 $aAcre River 653 $aAmazon 653 $aCarbono dissolvido 653 $aDissolved carbon 653 $aSeasonal variations 653 $aUrban impacts 653 $aVariações sazonais 700 1 $aSALIMON, C. I. 700 1 $aFIGUEIREDO, R. de O. 700 1 $aKRUSCHE, A. V. 773 $tBiogeochemistry, Dordrecht$gv. 105, p. 159-170, 2011.
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Embrapa Meio Ambiente (CNPMA) |
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Registros recuperados : 9 | |
3. | | NEILL, C.; ELSENBEER, H.; KRUSCHE, A. V.; LEHMANN, J.; MARKEWITZ, D.; FIGUEIREDO, R. de O. Hydrological and biogeochemical processes in a changing Amazon: results from small watershed studies and the large-scale biosphere-atmosphere experiment. Hydrological Processes, v. 20, n. 12, p. 2467-2476, Aug. 2006.Tipo: Artigo em Periódico Indexado | Circulação/Nível: Internacional - A |
Biblioteca(s): Embrapa Amazônia Oriental. |
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4. | | ROSA, M. B. S. da; FIGUEIREDO, R. de O.; MARKEWITZ, D.; KRUSCHE, A. V.; COSTA, F. F.; GERHARD, P. Evasion of CO2 and dissolved carbon in river waters of three small catchments in an area occupied by small family farms in the eastern Amazon. Ambiente e Água , Taubaté, v. 12, n. 4, p. 556-574, 2017.Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
Biblioteca(s): Embrapa Meio Ambiente. |
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5. | | BERGIER, I.; KRUSCHE, A.; MONTEBELLO, A.; GUÉRIN, F.; SOUZA, R.; PELLEGRIN, L. A.; BERSELLI, C.; TOMICH, T. R. The role of space-time shifts in alkaline lakes of Nhecolândia in the regional carbon dioxide and methane cycles. In: SIMPÓSIO DE GEOTECNOLOGIAS NO PANTANAL, 4., 2012, Bonito, MS. Anais... Brasília: Embrapa, 2012. p.39-49. CD-ROM.Tipo: Artigo em Anais de Congresso |
Biblioteca(s): Embrapa Pantanal. |
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6. | | MARKEWITZ, D.; LAMON, E. C.; BUSTAMANTE, M. C.; CHAVES, J.; FIGUEIREDO, R. O.; JOHNSON, M. S.; KRUSCHE, A.; NEILL, C.; SILVA, J. S. O. Discharge-calcium concentration relationships in streams of the Amazon and Cerrado of Brazil: soil or land use controlled. Biogeochemistry, Dordrecht, v. 105, n. 1-3, p. 19-35, Sep. 2011.Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
Biblioteca(s): Embrapa Amazônia Oriental. |
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7. | | MARKEWITZ, D.; LAMON III, E. C.; BUSTAMANTE, M. M. C.; CHAVES, J.; FIGUEIREDO, R. de O.; JOHNSON, M. S.; KRUSCHE, A. V.; NEILL, C.; SILVA, J. S. O. Discharge calcium concentration relationships in streams of the Amazon and Cerrado of Brazil: soil or land use controlled. In: ESA ANNUAL MEETING, 96., 2011, Austin. Nº COS 97-6.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Meio Ambiente. |
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8. | | CHAVES, J.; NEILL, C.; MARKEWITZ, D.; ELSENBEER, H.; KRUSCHE, A. V.; BIGGS, T.; FIGUEIREDO, R. de O.; LEHMAN, J.; DEEGAN, L. A. Identifying runoff sources across scales in Amazon watersheds: an LBA synthesis effort. In: SCIENCE TEAM MEETING, 11., 2007, Salvador. Book of Abstracts... Manaus: LBA-ECO, 2007. Abstract ID: 54.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Amazônia Oriental. |
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9. | | BERGIER, I.; SILVA, A. P. S.; MONTEIRO, H. de C.; GUÉRIN, F.; MACEDO, H. A.; SILVA, A.; KRUSCHE, A.; SAWAKUCHI, H. O.; BASTVIKEN, D. Methane and carbon dioxide dynamics in the Paraguay River Floodplain (Pantanal) in episodic anoxia events. In: BERGIER, I.; ASSINE, M. L. (Ed.). Dynamics of the Pantanal Wetland in South America. Switzerland: Springer International Publishing, 2016. p. 163-178. (The Handbook of Environmental Chemistry, 37)Tipo: Capítulo em Livro Técnico-Científico |
Biblioteca(s): Embrapa Pantanal. |
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Registros recuperados : 9 | |
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