Avaliação de impactos ambientais nas águas do trecho perenizado do rio Piancó e seus possíveis efeitos na produção agroindustrial primária local.

Abstract

This work aimed to make an environmental impacts assessment in the waters of the perennial section of Piancó river and making a qualitative analysis of the possible effects on primary agroindustrial production in the influence area of the search. For such, a georeferencing of the area from geoprocessing tools has been made. Then, a simplified environmental diagnosis of the area were conducted through literature searches, field visits, geoprocessing, photo documentation and consultations in government agencies, in which the anthropic activities with impactful potential of the river waters have been selected. The environmental impacts were identified through the methods Ad Hoc, Check Lists and Matrix of Interaction. Further, the significant impacts were selected and analyzed, for which environmental contro] measures and environmental plans and programs have been proposed. Finally, a qualitative analyze of the possible effects of environmental impacts on local primary agroindustrial production has been made. Based on the results, 12 kinds of anthropogenic activities of high impactful potential have been obtained, especially agriculture, in 27.9% of the total. In research, 132 environmental impacts into the waters river, among which 42 significant (43.73%), have been identified. The anthropic activity "responsible" for the greatest number of significant environmental impact has been the urbanization. All significant impacts were classified as adverse, temporary and mitigated, particularly: water pollution and contamination, eutrophication and change in the water quality in urban areas. All the environmental control measures were from the type mitigating, among these "the implementation of the Basic Sanitation Municipal Plan” and '"reforestation of riparian vegetation”. Among the environmental plans and programs proposed, owing stand out the "Monitoring Plan of Water Quality", the "Environmental Education Program" and the “Environmental Recovery Program". The analysis of the impacts on the waters river indicated a possible influence on the local agroindustrial production. Finally, it is expected that this study will serve as input for the planning and deployment of public policies for water resources management and environmental sustainability of the region, and also will contribute to the technical and scientific bibliographic archive on the theme, quite needy in the literature, especially for the study area.