Aspectos geoambientais dos recursos hídricos do Rio Cuinarana, Magalhães Barata - Pará

Abstract

The present work had the objective of mapping the Cuinarana river basin and describing the state of conservation of the sources in the municipality of Magalhães Barata, northern Pará, through an environmental diagnosis of the headwaters and cartographic production of thematic maps, in order to subsidize actions to promote the maintenance and sustainable use of water resources. It should be noted that there is no information of this nature for the studied municipality and therefore the area was chosen for the study, as a way of detecting the environmental problems in this basin, in order to develop public policies directed to environmental education.The study identified the situations of degradation of the main springs, in addition to georeferencing the Cuinarana River. The procedures adopted for the elaboration of the environmental diagnosis of the headwaters were based on evaluation protocols, which emphasize the physical integrity of the habitat around the headwaters, observing the aspects of the use and occupation of the soil, predominant vegetation, characteristic of the springs, its uses and the state of conservation. For the river maps, the boundary of the Cuinarana River basin was based on georeferenced relief data from the area in question, derived from the dot matrix products of the Shuttle Radar Topography Mission (SRTM), prepared by the US government agency National Aeronautics and Space Admistration ( NASA), and provided with correction calculations by the National Institute of Space Research (INPE), Brazil. The results obtained demonstrated that of the 11 springs raised, three 3 are in poor condition due to environmental impacts. The information from the maps shows that the Cuinarana River basin has undergone a process of transformation due to anthropic interference, resulting in different socio-environmental problems unaccompanied by effective environmental planning policies. Faced with the problem, the research product is a didactic atlas of the Cuinarana River Hydrographic Basin, composed of 10 thematic maps.