Avaliação de Impacto Ambiental no Riacho da Bica Afluente do Rio Gurgueia no Município de Monte Alegre do Piauí

Abstract

In recent years, aquatic ecosystems have been significantly altered, due to many environmental impacts that, in most cases, have been the result of human activities, which generally occur through the process of rainfall erosion due to inappropriate soil use practices. With an Environmental Impact Analysis, it is possible to evaluate the causes and impacts caused in a given river course, thus being able to seek alternatives to minimize them. Therefore, the objective of this work is to analyze the environmental impacts in the urban stretch of Riacho da Bica, in the Municipality of Monte Alegre do Piauí, aiming to clarify more about what has been contributing to this tributary being silted up and thus propose some mitigating measures. The work was carried out in the city of Monte Alegre, Piauí, where the focus of the study is on Riacho da Bica. To catalog the activities present in the area, the characterization and weighting criteria chosen for composing the spreadsheets were followed. The characterization has nine verification items that aim to provide a more detailed analytical description of the degradation situation present in the area and the weighting represents an analytical situation that is based on a system of numerical results, which will demonstrate a greater or lesser severity of impacts. Through the tables it was possible to identify the activities and actions in Riacho da Bica, with the main attention being those impacts of high magnitude that affect both the physical, biotic and anthropic environment