Abstract
The evolutionary dynamics of urban centers is conditioned by several economic and socio-environmental factors. When these factors interrelate unevenly, which is often motivated by interference from competent public agencies, give rise to urban and social problems such as irregular occupations, generating high environmental risks. The objective of this study was to identify the environmental risks levels that affect a set of slopes of the municipality of Olinda / PE, through a methodological approach centered on temporal analyzes of land occupation. The research was developed with vectorization of images and orthophotocards from 1974 to 2018 and qualitative analysis of risk levels through a cause and consequence matrix. Vectorization demonstrated critical results of plant suppression and urban spot growth, with about -63.59% and + 890%, respectively. The resulting matrix showed a high negative balance for environmental risk levels. Thus, the study demonstrates that the anthropogenic interference that shaped the region conditions a series of social and environmental impacts and that the planning and diagnosis of risk levels is an essential planning tool for intervention in these locations.
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