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Registro Completo |
Biblioteca(s): |
Embrapa Pantanal. |
Data corrente: |
14/11/2000 |
Data da última atualização: |
14/11/2000 |
Autoria: |
PADOVANI, C. R.; HAMILTON, S. K.; GALDINO, S.; VIEIRA, L. M. |
Afiliação: |
EMBRAPA. Centro de Pesquisa Agropecuaria do Pantanal (Corumba, MS); Michigan State University. Kellogg Biological Station (Hickory Corners, MI). |
Título: |
Deposition of riverborne sediments in the Pantanal wetland (Brazil): hydrological and ecological consequences. |
Ano de publicação: |
2000 |
Fonte/Imprenta: |
In: QUEBEC 2000: MILLENNIUM WETLAND EVENT, 2000, Quebec, Canada. Program with abstracts. Quebec: Elizabeth MacKay, 2000. |
Páginas: |
p.455. |
Idioma: |
Inglês |
Conteúdo: |
The Pantanal, one of the largest wetlands of the world, receives half of its flood waters from upland watersheds. Sediment delivery to the Pantanal by the Taquari River has been increasing due to climatic and hydrological variability, soil susceptibility to erosion, and land conversion for agriculture and cattle ranching. Most of the sediment load is deposited within the Pantanal, resulting in geomorphological changes and increased flooding by overbank flow from the river channel. We have measured water and sediment discharge throughout the Taquari alluvial fan over a range of discharges. The inputs of water and sediment from the uplands to the Pantanal are highly variable seasonally. Comparisons with historical data show a recent increase of sediment discharge and concentration, with practically no change in water increased sediment transport from the uplands and its deposition in the Pantanal strongly impacts the fauna, flora, fishing, navigation and cattle ranching. |
Palavras-Chave: |
Area alagada; Deposicao; Deposition; Rio Taquari; Taquari River; Wetland. |
Thesagro: |
Ecologia; Hidrologia; Impacto Ambiental; Sedimento. |
Thesaurus Nal: |
ecology; environmental impact; hydrology; Pantanal; sediments. |
Categoria do assunto: |
-- |
Marc: |
LEADER 01966naa a2200349 a 4500 001 1804229 005 2000-11-14 008 2000 bl uuuu u00u1 u #d 100 1 $aPADOVANI, C. R. 245 $aDeposition of riverborne sediments in the Pantanal wetland (Brazil)$bhydrological and ecological consequences. 260 $c2000 300 $ap.455. 520 $aThe Pantanal, one of the largest wetlands of the world, receives half of its flood waters from upland watersheds. Sediment delivery to the Pantanal by the Taquari River has been increasing due to climatic and hydrological variability, soil susceptibility to erosion, and land conversion for agriculture and cattle ranching. Most of the sediment load is deposited within the Pantanal, resulting in geomorphological changes and increased flooding by overbank flow from the river channel. We have measured water and sediment discharge throughout the Taquari alluvial fan over a range of discharges. The inputs of water and sediment from the uplands to the Pantanal are highly variable seasonally. Comparisons with historical data show a recent increase of sediment discharge and concentration, with practically no change in water increased sediment transport from the uplands and its deposition in the Pantanal strongly impacts the fauna, flora, fishing, navigation and cattle ranching. 650 $aecology 650 $aenvironmental impact 650 $ahydrology 650 $aPantanal 650 $asediments 650 $aEcologia 650 $aHidrologia 650 $aImpacto Ambiental 650 $aSedimento 653 $aArea alagada 653 $aDeposicao 653 $aDeposition 653 $aRio Taquari 653 $aTaquari River 653 $aWetland 700 1 $aHAMILTON, S. K. 700 1 $aGALDINO, S. 700 1 $aVIEIRA, L. M. 773 $tIn: QUEBEC 2000: MILLENNIUM WETLAND EVENT, 2000, Quebec, Canada. Program with abstracts. Quebec: Elizabeth MacKay, 2000.
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Embrapa Pantanal (CPAP) |
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Registros recuperados : 120 | |
71. | | VIEIRA, L. M.; GALDINO, S.; PADOVANI, C. R.; NUNES, V. da S. Risco de contaminacao do Pantanal por biocidas empregados na agropecuaria da Bacia do Alto Taquari, MS, Brasil. Separata de Revista Brasileira de Toxicologia, São Paulo, v.12, n.1, ed. esp., p.43, 1999. Simposio de Toxicologia, 1999, Ribeirao Preto. Agricultura e preservacao da qualidade da agua - resumos.Biblioteca(s): Embrapa Pantanal. |
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79. | | RODRIGUES, C. A. G.; BRUNINI, O.; BARBOSA, J. C.; DUARTE, C. R.; GALDINO, S. Efeitos do fogo, do pastejo animal e da variacao ambiental sobre o campo de Elyonurus muticus (Spreng.) O.Ktze. no Pantanal. In: SIMPOSIO SOBRE RECURSOS NATURAIS E SOCIO-ECONOMICOS DO PANTANAL, 3., 2000, Corumba. Os desafios do novo milenio - resumos. Corumba: Embrapa Pantanal, 2000. p.287-288Biblioteca(s): Embrapa Pantanal. |
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Registros recuperados : 120 | |
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