Análise da fragilidade como instrumento para gestão de bacias de risco – Serra do Mar (Região da Costa Verde – RJ

• DOI: https://doi.org/10.22533/at.ed.6952430081

• Palavras-chave: Risco, Fragilidade Ambiental, Lógica nebulosa, Serra do Mar

• Keywords: Risk, Environmental Fragility, Fuzzy Logic, Serra do Mar

• Abstract: In several regions of the world there are reports of disasters associated with environmental weaknesses. These disasters are associated with anthropization processes and response to severe climatic events, directly affecting the dynamic balance of the geosystem. Between 2010 and 2011, in the Costa Verde and Serrana Regions (RJ) there were significant losses of human life. These catastrophic disasters were caused after heavy summer rains, which triggered successive mass movements. Ecodynamic Units represent the different stages of conservation of an environment and can be classified into three distinct stages: stable environment, in which pedogenesis prevails, in which the equilibrium condition approaches the climax; Intergrades environment, in which these environments ensure the gradual passage between stable environments and unstable environments and the unstable environment, in which morphogenesis prevails as the predominant element in the dynamics of the environment. Risks are almost always concentrated in intergrade and unstable environments. Spatial modeling techniques, available in geoprocessing tools, are fundamental to developing these analyses. The present research proposes to develop a spatial analysis technique, based on fuzzy logic, aiming to identify the areas that may become an environmental risk, within the limits of the Cunhambebe State Park and its buffer zone, located in the Costa Verde Region. in the state of Rio de Janeiro.