Avalia??o qualitativa de impactos ambientais considerando as etapas de limpeza e preparo do terreno em plantios florestais no Nordeste paraense

摘要

This study presents the results of qualitative assessment of environmental impacts on the forest stage of implementation, considering the activities of cleaning and preparation of the land, through the application of matrix methods of identification and interaction impacts, descriptive list (checklist) and the combination/weight attributes. This assessment was based on the identification and qualitative characterization of environmental impacts, whose methodologies allowed the fast and hierarchical view of the impacts. Through the array was revealed a possible relationship of 348 impacts (total capacity of the matrix), and of these 304 (87.6%) were identified, which impacts 209 (60.05%) relapsed on the biophysical environment and 95 (27, 31%) on the socioeconomic environment. Among the 209 impacts on the biophysical environment, all showed a negative value, suggesting that this is the most negatively impacted environmental compartment when carrying out the activities of cleaning and preparing the ground. From the 95 socioeconomic impacts, 72 (75.78%) had a positive value and 23 (24.21%) had a negative value, showing that the socioeconomic environment is the most positively affected of the environmental compartments when carrying out the activities. Were identified the most significant positive and negative environmental impacts that, with the combination / balance of attributes showed to be of average local and regional significance. All impacts evidenced presented temporality in short-term, showing that they are on the scope to the diagnosis and appropriate environmental management. The results contribute to and reaffirm the need to establish the process of environmental impact assessment in technical and administrative businesses routine as a tool in environmental management.