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1. | | CARDOSO, J. C.; GOMES, D. F.; MATOS, M. A.; PIGATTO, P. M.; HUNGRIA, M.; ANDRADE, D. S. Morpho-physiological and genetic characterization of Rhizobium Elite Strains. In: INTERNATIONAL INCT SYMPOSIUM ON BIOLOGICAL NITROGEN FIXATION, 1., 2009, Curitiba. Program and index... Curitiba: INCT, 2009. Conference , P30. Biblioteca(s): Embrapa Soja. |
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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 |
Circulação/Nível: |
A - 1 |
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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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
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Registro completo
Biblioteca(s): |
Catálogo Coletivo de Periódicos Embrapa; Embrapa Solos. |
Identificador: |
452 |
Data corrente: |
09/05/2002 |
Data da última atualização: |
12/05/2015 |
Código do título: |
5150032 |
ISSN: |
0096-6657 |
Código CCN: |
003063-5 |
Título e Subtítulo: |
AMERICAN FERTILIZER |
Título posterior: |
AMERICAN FERTILIZER AND ALLIED CHEMICALS |
Entidade: |
National Fertilizer Association |
Local de publicação: |
Willoughby, Ohio, US |
Periodicidade: |
Mensal |
Inicio de publicação: |
1894 |
Coleções da unidade: |
Embrapa Solos 1938/41 88(1-13); 89(1-5,9-13); 90(1-13); 91(2-7,9-12); 93(1-4,6-13); 94(1-8,10-13) Classificação: 631.805 |
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