Minimization of conflict in territory management through logica booleana em-ployment and geoenvironmental criteria for the definition of areas favorable to landfill implantation: a case study in the municipality of Itabira – MG

Abstract

The implementation of a sanitary landfill is the focus of several conflicts due to the impacts that this cause to the environment, both social and environmental, in this sense the present study aims to select areas favorable to the implantation of a sanitary landfill in order to minimize them, area of study is the municipality of Itabira, Minas Gerais. The determination of the areas was based on criteria of restrictions and aptitudes based on the recommendations of the norm NBR 13.896 of 1997. The Geographic Information System (GIS) - ArcGis was used to apply the logic having as restrictive characteristics slope, distance of water resources, distance of roads, distance of population centers, distance from the iron mine and conservation units, and the unfit areas received a value of 0, and favorable areas received a value of 1. The final result, with the multiplication of all maps, generated a final map of favorability, adopting a distance criterion, which classifies the areas as inapt, restricted, moderate or favorable to the construction of a sanitary landfill in the municipality. A great gain of the methodology used is the fact of minimizing the subjectivity in the definition of the places, since one works with factors that can be delimited spatially. The fact of presenting the results at levels of favorability gives the decision maker, public or private, greater options of locations for the landfill can be implemented, in addition, the applied methodology can be used in other municipalities as well as the conspiracy of these in function ease of implementation even in large territorial regions.