Mapeamento da APP do Iago de uma pequena central hidreletrica no noroeste do RS.

Abstract

The study aimed to delimit the permanent preservation areas of the artificial reservoir formed from the construction of a Small Hydroelectric Plant, to compare with the permanent preservation area of its neighboring neighbors, downstream and upstream of the artificial reservoir. The Small Hydroelectric Power Plant chosen for this work is located on the Guarita River, in the Rio da Várzea hydrographic basin, in the northwest of Rio Grande do Sul. The study was carried out with the aid of the ArcMap 10.2 software where satellite images were used for delimitation and identification areas and their results compared with current legislation. The results indicate that only 4.93% of the permanent preservation area surrounding the reservoir is disturbed, which is a value significantly lower than that observed upstream of the reservoir, with 28.80% of the area disturbed and downstream, with 20.00 %. It is concluded that none of the areas are fully in accordance with current legislation, but that the permanent preservation area of the Small Hydroelectric Plant lake is the one that comes closest to what is required for a permanent preservation area, with its full recovery and implementation being more viable. It is recommended that those involved with the areas studied here collaborate in their recovery, installing fences to prevent invasions and hiring specialized companies to recover these impacted areas. Furthermore, awareness-raising actions among nearby communities can contribute to the recovery and maintenance of permanent preservation areas.