Data/hora: 08/06/2024 06:20:36

Biblioteca(s): | Embrapa Pantanal.
Data corrente: | 07/03/2016
Data da última atualização: | 16/05/2017
Autoria: | ASSINE, M. L.; MACEDO, H. A.; STEVAUX, J. C.; BERGIER, I.; PADOVANI, C. R.; SILVA, A.
Afiliação: | MARIO LUIS ASSINE, UNIVERSIDADE ESTADUAL PAULISTA; HUDSON AZEVEDO MACEDO, UNIVERSIDADE ESTADUAL PAULISTA; JOSÉ CÂNDIDO STEVAUX, UNIVERSIDADE ESTADUAL PAULISTA; IVAN BERGIER TAVARES DE LIMA, CPAP; CARLOS ROBERTO PADOVANI, CPAP; AGUINALDO SILVA, FEDERAL UNIVERSITY OF MATO GROSSO DO SUL.
Título: | Avulsive rivers in the hydrology of the Pantanal wetland.
Ano de publicação: | 2016
Fonte/Imprenta: | In: BERGIER, I.; ASSINE, M. L. (Ed.). Dynamics of the Pantanal Wetland in South America. Switzerland: Springer International Publishing, 2016.
Páginas: | p. 83-110.
Idioma: | Inglês
Notas: | (The Handbook of Environmental Chemistry, 37)
Conteúdo: | This chapter presents and discusses the avulsive nature of the Pantanal rivers and shows how the ever-changing drainage network influences the surface hydrology and ecology. Besides, the systemic portrait here outlined provides new insights concerning the Pantanal hydrodynamics, in its particularities and as a whole system. A simple model of the avulsion process is illustrated, and several realistic examples of the processes leading to river avulsions are shown and discussed. The north-to-south flood-pulse wave due to the presence of bottlenecks is further described in detail. This systemic approach allows identifying that the fluvial ?avulsive and bottleneck? dynamics seasonally affects both local and regional ecohydrological processes. Moreover, it shows that avulsive processes are commonplace in Pantanal, and changes in land use, particularly in river headwaters in the highlands, accelerate the avulsions, making the sustainable use of the Pantanal lowland areas difficult.
Palavras-Chave: | Flood dynamics; Fluvial avulsion; Fluvial bottlenecks; Fluvial megafans; Multichannel systems.
Thesagro: | Hidrologia; Inundação.
Thesaurus Nal: | Alluvial plains; Floodplains; Hydrology.
Categoria do assunto: | P Recursos Naturais, Ciências Ambientais e da Terra
Registro original: | Embrapa Pantanal (CPAP)
Exemplares: | CPAP - (59535-1) - UPC - PL - PP - 551.69 - B498d - 2016.00004 - DIS