Artigo Acesso aberto Produção Nacional Revisado por pares

ONE- AND TWO-DIMENSIONAL ECOHYDRAULIC MODELING OF FORMOSO RIVER (MG)

2016; Sociedade Brasileira de Engenharia Agrícola; Volume: 36; Issue: 6 Linguagem: Inglês

10.1590/1809-4430-eng.agric.v36n6p1050-1062/2016

ISSN

1809-4430

Autores

Iara de Castro e Oliveira, Demétrius David da Silva, Hugo Alexandre Soares Guedes, Jorge Abdala Dergam, Celso Bandeira de Melo Ribeiro,

Tópico(s)

Hydrology and Watershed Management Studies

Resumo

The objective of this study was to compare ecohydrological simulations from a one-dimensional model (PHABSIM - Physical Habitat Simulation System) and a two-dimensional model (River2D) in order to indicate a reliable tool that could be used to determine public policies for the sustainable management of the water resources of the FormosoRiver basin(MG). The results from the calibration of hydraulic variables, namely, water depth and velocity, as well as habitat predictions for three fish species of the river were compared. The results showed that River 2D was best suited to simulate ecohydrological features for the studied river stretch. Although PHABSIM presented a better fit of the hydraulic variables at the calibration process, the use of only three monitoring cross sections to compose the biotic model database compromised its habitat modeling. PHABSIM model was not able to accurately assess the actual characteristics of the physical habitat in the segments of the river located between the monitoring cross sections.

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