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Registro Completo |
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Biblioteca(s): |
Embrapa Agricultura Digital; Embrapa Pantanal. |
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Data corrente: |
17/04/2023 |
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Data da última atualização: |
24/08/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
LOUZADA, R. O.; ROQUE, F. de O.; DINIZ, J. M. F. de S.; BERGIER, I. |
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Afiliação: |
RÔMULLO OLIVEIRA LOUZADA, UNIVERSIDADE FEDERAL DE MATO GROSSO DO SUL, INSTITUTO DE MEIO AMBIENTE DE MATO GROSSO DO SUL; FÁBIO DE OLIVEIRA ROQUE, UNIVERSIDADE FEDERAL DE MATO GROSSO DO SUL, JAMES COOK UNIVERSITY; JULIANA MARIA FERREIRA DE SOUZA DINIZ, INSTITUTO NACIONAL DE PESQUISAS ESPACIAIS; IVAN BERGIER TAVARES DE LIMA, CPAP, CNPTIA. |
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Título: |
River channel avulsion in the Taquari River megafan of the Brazilian Pantanal: remote sensing and modeling reveal recent and future changes. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Applied Geography, v. 155, 102955, 2023. |
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DOI: |
https://doi.org/10.1016/j.apgeog.2023.102955 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract : The largest crevasse in the Taquari River megafan in the Pantanal, Brazil with a perennial flooded area of ∼500,000 ha, was initiated in 1997 and impacted the environment and people. Here, we spatially characterize and explored a model aiming at predicting the evolution of the rechanneling of the Taquari River within this huge flooded area. Our approach is based on a spatiotemporal dry/wet index (R), which measures the degree of moisture in six major land cover classes. The index was annually estimated from MapBiomas Landsat rasters between 1996 and 2021 and calculated for 142 grid cells (5 × 5 km each). Temporal regressions were then used to predict the state of individual grids in the long term, up to 2080. The results suggest a gradual and slow terrestrialization between 1997 and 2021 as areas returned to pre-avulsion levels, mainly in the eastern and northern limits, closer to the crevasse. Modeling projections suggest that river rechanneling of the Taquari River might be completed by 2080 with its new mouth on the Paraguay-Mirim River. Large areas that are currently aquatic (open water, flooded soils, and flooded vegetation) are predicted to return to terrestrial state (forests and pastures) in the long term. |
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Palavras-Chave: |
Dinâmica fluvial; Evolução de paisagem; Floodplain; Fluvial dynamics; Landscape evolution; Modelagem; Recanalização de rio; River rechannelization; Terra inundada; Terrestrialização; Terrestrialization; Wetland. |
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Thesagro: |
Sensoriamento Remoto; Várzea. |
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Thesaurus Nal: |
Remote sensing. |
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Categoria do assunto: |
--
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02330naa a2200349 a 4500
001 2153186
005 2023-08-24
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.apgeog.2023.102955$2DOI
100 1 $aLOUZADA, R. O.
245 $aRiver channel avulsion in the Taquari River megafan of the Brazilian Pantanal$bremote sensing and modeling reveal recent and future changes.$h[electronic resource]
260 $c2023
520 $aAbstract : The largest crevasse in the Taquari River megafan in the Pantanal, Brazil with a perennial flooded area of ∼500,000 ha, was initiated in 1997 and impacted the environment and people. Here, we spatially characterize and explored a model aiming at predicting the evolution of the rechanneling of the Taquari River within this huge flooded area. Our approach is based on a spatiotemporal dry/wet index (R), which measures the degree of moisture in six major land cover classes. The index was annually estimated from MapBiomas Landsat rasters between 1996 and 2021 and calculated for 142 grid cells (5 × 5 km each). Temporal regressions were then used to predict the state of individual grids in the long term, up to 2080. The results suggest a gradual and slow terrestrialization between 1997 and 2021 as areas returned to pre-avulsion levels, mainly in the eastern and northern limits, closer to the crevasse. Modeling projections suggest that river rechanneling of the Taquari River might be completed by 2080 with its new mouth on the Paraguay-Mirim River. Large areas that are currently aquatic (open water, flooded soils, and flooded vegetation) are predicted to return to terrestrial state (forests and pastures) in the long term.
650 $aRemote sensing
650 $aSensoriamento Remoto
650 $aVárzea
653 $aDinâmica fluvial
653 $aEvolução de paisagem
653 $aFloodplain
653 $aFluvial dynamics
653 $aLandscape evolution
653 $aModelagem
653 $aRecanalização de rio
653 $aRiver rechannelization
653 $aTerra inundada
653 $aTerrestrialização
653 $aTerrestrialization
653 $aWetland
700 1 $aROQUE, F. de O.
700 1 $aDINIZ, J. M. F. de S.
700 1 $aBERGIER, I.
773 $tApplied Geography$gv. 155, 102955, 2023.
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Embrapa Pantanal (CPAP) |
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| 14. |  | BULLER, L. S.; BERGIER, I.; RECH, R. Greenhouse gas emissions mitigation in more sustainable agroecosystems in Cerrado. In: INTERNATIONAL SYMPOSIUM ON GREENHOUSE GASES IN AGRICULTURE, 2., 2016, Campo Grande, MS. Proceedings... Brasília, DF: Embrapa, 2016. p. 245-248. (Embrapa Gado de Corte. Documentos, 216). Coordenador Roberto Giolo de Almeida. II SIGEE. Disponível em: . Acesso em: 30 nov. 2016.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Pantanal. |
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| Registros recuperados : 122 | |
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