Métodos para avaliação de impactos ambientais: a lógica fuzzy como ferramenta para tomada de decisões

Abstract

Due to the rapid socioeconomic growth worldwide, especially in Brazil, we observe as a result, various environmental impacts caused by such activity, making a necessity its assessment to mitigate these impacts, and a form of evaluation that has been studied lately is through concepts of fuzzy logic as a tool of analysis. Therefore this study investigated the application of a adapted methodology of environmental impact assessment using fuzzy logic as a tool, seeking to help in decision making of researchers and stakeholders in order to deal with the inherent uncertainty of the process of data collection and analysis. The methodology was based on sevaral stages, consisting of: data gathering, fuzzification, fuzzy analysis, desfuzzificação and final analysis, based on the model proposed by Peche and Rodrigues (2009). It was studied environmental vulnerability and made the evaluation of environmental impacts in the valley of the stream of toucans, located in the south of the main district of Londrina / PR, where there were found that the studied place, was with medium vulnerability and it was severely impacted with an found índex of mid-high. There was obtained satisfactory results that showed that this work can serve as a basis for further studies, as long as there is a extended application scope.