Zoneamento socioambiental associado ao processo de terras caídas nas bacias hidrográficas amazônicas

Abstract

This dissertation presents the complexity and importance of the phenomenon of fallen lands for the inhabitants on the banks of the Amazonian rivers. The occurrence of this river bank erosion causes damage and concerns in several regions of the Amazon. The diversity of triggering factors reflects the complexity of the topic. This research aims to evaluate the use of the term "fallen lands" in the context of the Amazonian rivers, defining the affected áreas. The objectives are achieved from a systematic review, using environmental data from the Geological Survey of Brazil (CPRM) and National Water Agency (ANA), socioeconomic data from the 2010 Census (IBGE) and the adaptation of the Emergency Action products for the Delimitation of Areas at High and Very High Risk to Floods and Mass Movements - Risk Segmentation (CPRM). It resulted in the analysis of previous research, grouped by period, type of publication and applied methodology, characterization of affected areas described in the literature with regard to geology, geomorphology and water security. The profile of the impacted population points to the vulnerability of communities and reliance on effective government measures to improve the quality of life and responsiveness to the risk of environmental disasters.