Diagnóstico dos elementos de drenagem da área urbana de Rio Claro - SP: subsídeos para o plano diretor

The management of urban areas must consider aspects related to urban drainage, especially in hot and humid environments, and such aspects must be incorporated on director plans. This is quite important in urban areas settled on natural fragile hydro-geomorphologic areas. So, the main aim of this paper was to present the urban drainage diagnostic made in Rio Claro (SP-Brazil), discussing its results and evaluating the applied techniques. Further, there were presented some proposed directions based on such analyses. From the obtained results it was possible to verify that the impacts caused by the inefficient urban drainage system incur on direct and indirect effects such as flood, erosion and water quality degradation.

Influências naturais e antrópicas na qualidade da água subterrânea de poços de abastecimento público na área urbana de Marília (SP)

This work evaluated the natural and anthropogenic influences on the quality of groundwater from public supply wells in the urban area of Marília, São Paulo State. Sixteen sampling points were established in the Adamantina Aquifer, Bauru Aquifer System, analyzing the following parameters: electrical conductivity, temperature, pH, total suspended solids, HCO3 - , PO4 3-, SO4 2-, Cl- , F- , N-NO3 - , Ca2+, Na+ , K+ , Mg2+, Si4+, Fe3+ and Al3+. The results indicated that the groundwater in the urban area of Marília has a slightly acid pH and low conductivity, with the ionic composition presenting a low cation and anion concentration and is classified as soft water and calciumbicarbonated water. Natural sources of elements/compounds can be attributed to the dissolution of carbonates during the water/rock interaction, controlling pH, alkalinity and electrical conductivity, and hydrolysis of other mineral constituents of sedimentary rocks from Adamantina Formation, with the exception of quartz. High concentrations of N-NO3 - found in some public supply wells in urban Marilia were due to sewage.

Degradação urbana decorrente da atividade de mineração para a construção civil em Teresina - PI

Pós-graduação em Geografia - IGCE

Recurso natural, organização espacial e ordenamento territorial: mineração e degradação de terras na depressão interplanáltica semiárida do Alto Coreaú (CE)

Pós-graduação em Geografia - IGCE