Fragilidade ambiental no baixo curso da bacia hidrográfica do rio Itapecuru

Abstract

Population growth has contributed to different forms of changes in land cover and triggering socio-environmental problems in the lower course of the Itapecuru River Hydrographic Basin (BHRI), presenting economic activities as the main destination for housing construction, one of which is the expansion of areas destined for agriculture/livestock. In this way, the general objective of the study aims to subsidize the integrated management of the lower course of the BHRI, through the identification and suggestion of management for areas with alterations caused both by the natural action of the environment, and those arising from human activities. With regard to the methodological procedures adopted in the research, the qualitative-quantitative approach was used, taking into account the Integrated Analysis, and the adaptation of Ross' approach (1994) referring to environmental fragility and Cunha et al. (2011) in the application of fuzzy logic – AHP. Thematic maps were generated by the Universal Transverse Mercator (UTM) projection system, under the Geodetic Reference System of the Geocentric Reference System for the Americas (SIRGAS 2000). Therefore, to generate the collected data and produce the maps, QGIS software in version 3.12.0 with GRASS in version 7.8.2 were used. It is hoped that the study will help the government, the population, researchers and the Itapecuru River Basin Committee, so that the use of water resources is intended for the maintenance of the lives of living beings and various economic activities. , improper use and high waste, have generated imbalance in the environment, making it necessary to develop conservation, protection and recovery measures.