Uso da terra na bacia do arroio da Ronda (Ponta Grossa/PR) e sua influência nos processos geomorfológicos no período de 1980 a 2009

Abstract

This research aimed at assessing the land use in the Arroio do Ronda's Basin (Ponta Grossa City/PR) and its influence on the geomorphological processes in the period 1980 to 2009. This time interval was divided into three periods: 1980-1989, 1990-1999 and 2000-2009, and in each of these periods geomorphological processes were identified. They are developed on rural and urban lands. After the processes identification, the concentration processes's equation (CP), which has resulted in concentration of processes/km 2 was used. Therefore, in each time interval the equation was applied, showing that as urbanization increased, the amount of CP got higher, indicating this phenomenon may influence considerably the geomorphological processes. At rural lands, there was an increase of CP from 1980 to 1990 and remaining stable in 2000.