Impacto ambiental nos loteamentos na área de expansão do perímetro urbano no município de Erechim, Rio Grande do Sul, Brasil

Abstract

The objective of this work was to evaluate the environmental impact on native vegetation and Permanent Preservation Areas in seven land division in the area of expansion of the urban perimeter of Erechim-RS. The methodology involved the use of satellite images and geoprocessed vector data provided by the City Hall, description on the spot of green areas and consultation of environmental licensing documents. The evaluation criteria used took into account the preservation of forest fragments in the area, the presence of surface water resources and the current situation of green areas. Among the seven residential land urban evaluated, four were classified as having low environmental impact and three of moderate impact, and no land division of high environmental impact was recorded. The main impact being the suppression of native vegetation. These results demonstrated that well planned land parceling can meet the demand of urban population increase without significant environmental impacts. On the other hand, building a residential land on a property with extensive native forest areas and natural water courses can result in changes that, even if they are legal under current environmental legislation, can take years to regenerate from an ecological point of view, or even cause irreversible changes.