Avaliation of Turbidity Rate, Land Use, Surrounding Forest and Landscape Format in the Pato Branco River

摘要

The Pato Branco River is the responsible by the supply of potable water to Pato Branco City. This project executed during 1998, 1999 e 2000 was bom from the necessity of increasing the water quality of Pato Branco River. It was conduced by the CEFET-PR and the Mariopolis City Hall. The methodology adopted was the environmental diagnostic. It was realized the collect and analysis of water samples in the rivers of the manancial. The environmental diagnostic compiled information about de landscape format (concave or convex), system of soil use (especially the kind of till) and the situation of surrounding forest (present or absent, altered or not) also was investigated the area of de farms in the border of the rivers. After was realized correlation analysis between the results of the environmental diagnostic and the results of analysis of water samples. The result shows that 60% of the points evaluated had problems whit surrounding forest. There is also a correlation between the landscape format and the turbidity of water, pH of the rivers, the kind of soil use. The presence or absence of surrounding forest had the highest correlation whit the pH of the rivers.