Interference of the Land Use on Flooding in An Urban Area (PAP014891)

Código

PAP014891

Autores

Rodrigo Braga Moruzzi, ISABEL CRISTINA MORAES, Fabiano Tomazini da Conceicao, Cenira Maria Lupinacci da Cunha, Sérgio dos Anjos F. Pinto

Tema

Urban Floods

Resumo

The first populations have settled near the rivers and as they have expanded there was an increase of impervious areas, and the suppression of floodplain areas. This fact contributes to changes in river hydrology and hydraulics and to the increased floods. Thus, this work aims to verify the interference of land use on floods in the urban area of the Servidão stream basin, Rio Claro (SP), in different scenarios, i.e., pre- and post-occupation scenarios. For this, the Soil Conservation Service model based on the land use characterization for all scenarios were evaluated, thus permitting to measure the variation on hydrograms and flow peaks. The results indicated that increasing the waterproofing, for the growth of the Rio Claro city, was responsible for the first event of flooding of the city. The government has been doing some engineering work and transferring most of the problems with flooding to downstream areas, where floodings still occur.