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 | Acesso ao texto completo restrito à biblioteca da Embrapa Meio Ambiente. Para informações adicionais entre em contato com cnpma.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
30/07/2013 |
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Data da última atualização: |
30/07/2013 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
OVALLE, A. R. C.; SILVA, C. F.; REZENDE, C. E. de; GATTS, C. E. N.; SUZUKI, M. S.; FIGUEIREDO, R. de O. |
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Afiliação: |
ÁLVARO RAMON COELHO OVALLE, UENF; C. F. SILVA, UENF; CARLOS EDUARDO DE REZENDE, UENF; CARLOS EDUARDO NOVO GATTS, UENF; M. S. SUZUKI, UENF; RICARDO DE OLIVEIRA FIGUEIREDO, CNPMA. |
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Título: |
Long-term trends in hydrochemistry in the Paraíba do Sul River, southeastern Brazil. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Journal of Hydrology, Amsterdam, v. 481, p. 191-203, 2013. |
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Idioma: |
Inglês |
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Conteúdo: |
The Paraíba do Sul watershed is an important hydrological resource for southeastern Brazil, that has undergone extensive land use changes related to industrial, agricultural and urban activities. Over 11 years, between 1997 and 2007, a long-term study was conducted to evaluate hydrochemical variation in the basin outlet through estimations of annual fluxes and identification of their controlling factors. River water was classified as Na-HCO3, with TDS ranging from 32 to 132 mg L-1. Variation between sea- sons was found: cations, total alkalinity, electrical conductivity, dissolved oxygen, nitrate and chlorophyll "a" had increased values the during low discharge period, while concentrations of DOC, ammonium, nitrite, phosphate and SPM had increased values during the high discharge period. Chloride, sulfate, silica and pH showed no clear relationship with discharge. These patterns also were correlated with hydrolog- ical flow paths originating from different sources. Wavelet decomposition was used to characterize pre- cipitation anomalies largely associated both with long-term climate factors (i.e. ENSO) and short-term climate responses from the two discharge periods that were studied. Distinct responses of fluvial hydro- chemistry were observed including ENSO-induced fluctuation to be particularly strong for DOC, with annual flux varying approximately 60% around measured median value. |
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Palavras-Chave: |
Eutroficação; Rio Paraíba do Sul. |
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Thesagro: |
Bacia hidrográfica; Impacto ambiental; Rio. |
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Thesaurus Nal: |
Eutrophication; Hydrochemistry; Rivers. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02204naa a2200277 a 4500
001 1963062
005 2013-07-30
008 2013 bl uuuu u00u1 u #d
100 1 $aOVALLE, A. R. C.
245 $aLong-term trends in hydrochemistry in the Paraíba do Sul River, southeastern Brazil.$h[electronic resource]
260 $c2013
520 $aThe Paraíba do Sul watershed is an important hydrological resource for southeastern Brazil, that has undergone extensive land use changes related to industrial, agricultural and urban activities. Over 11 years, between 1997 and 2007, a long-term study was conducted to evaluate hydrochemical variation in the basin outlet through estimations of annual fluxes and identification of their controlling factors. River water was classified as Na-HCO3, with TDS ranging from 32 to 132 mg L-1. Variation between sea- sons was found: cations, total alkalinity, electrical conductivity, dissolved oxygen, nitrate and chlorophyll "a" had increased values the during low discharge period, while concentrations of DOC, ammonium, nitrite, phosphate and SPM had increased values during the high discharge period. Chloride, sulfate, silica and pH showed no clear relationship with discharge. These patterns also were correlated with hydrolog- ical flow paths originating from different sources. Wavelet decomposition was used to characterize pre- cipitation anomalies largely associated both with long-term climate factors (i.e. ENSO) and short-term climate responses from the two discharge periods that were studied. Distinct responses of fluvial hydro- chemistry were observed including ENSO-induced fluctuation to be particularly strong for DOC, with annual flux varying approximately 60% around measured median value.
650 $aEutrophication
650 $aHydrochemistry
650 $aRivers
650 $aBacia hidrográfica
650 $aImpacto ambiental
650 $aRio
653 $aEutroficação
653 $aRio Paraíba do Sul
700 1 $aSILVA, C. F.
700 1 $aREZENDE, C. E. de
700 1 $aGATTS, C. E. N.
700 1 $aSUZUKI, M. S.
700 1 $aFIGUEIREDO, R. de O.
773 $tJournal of Hydrology, Amsterdam$gv. 481, p. 191-203, 2013.
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Embrapa Meio Ambiente (CNPMA) |
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| Registros recuperados : 183 | |
| 23. |  | MENEZES, A. J. E. A. de; HOMMA, A. K. O. Frutos de bacurizeiro comercializado pelos agricultores familiares no Nordeste Paraense e na ilha de Marajó, no Pará. In: CONGRESSO DA SOCIEDADE BRASILEIRA DE SISTEMAS DE PRODUÇÃO, 9., 2012, Luziânia. Ciência, tecnologia e inovação para o desenvolvimento rural sustentável: anais. Brasília, DF: Embrapa; Planaltina, DF: Embrapa Cerrados, 2012.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 24. | | LIMA, M. B.; MENEZES, A. J. E. A. de. Tratos culturais. In: BORGES, A. L.; BRASIL, E. C. (Ed.). Sistema de produção de banana para o estado do Pará. 2. ed. Brasília, DF: Embrapa, 2014. (Embrapa Mandioca e Fruticultura. Sistema de produção, 9; Embrapa Amazônia Oriental. Sistema de produção, 8).| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 31. | | MONTEIRO, E. S.; MENEZES, A. J. E. A. de; HOMMA, A. K. O.; SIOLVA, S. C. Análise do mercado paraense de mel no período de 1995 a 2010. In: CONGRESSO DA SOCIEDADE BRASILEIRA DE ECONOMIA, ADMINISTRAÇÃO E SOCIOLOGIA RURAL, 51., 2013, Belém, PA. Novas fronteiras da agropecuária no Brasil e na Amazônia: desafios da sustentabilidade: anais. Belém, PA: SOBER, 2013.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 37. | | MENEZES, A. J. E. A. de; SCHÖFFEL, E. R.; HOMMA, A. K. O. Caracterização de sistemas de manejo de bacurizeiro (Platonia insignis mart.) nas mesorregiões do Nordeste paraense e do Marajó, estado do Pará. Amazônia: ciência e desenvolvimento, Belém, PA, v. 6, n. 11, p. 49-62, jul./dez. 2010.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 5 |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| Registros recuperados : 183 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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