ENVIRONMENTAL CHANGES AND THE IMPACTS OF THE HYDROELECTRIC SECTOR ON THE RIVER SYSTEM OF THE RIVER BASIN, UPPER SEPOTUBA – STATE OF MATO GROSSO
Environmental analysis. Water resources. Apropriation. Fluvial system. Hidroelectric complex and land uses.
The appropriation of water resources has taken place without due concern for achieving a balance between the use and the dynamics of nature. In this sense, the present work aimed to analyze the effects of environmental changes in the Juba river basin, state of Mato Grosso, based on the production modes developed in the region, as well as their implications associated with the construction of hydroelectric projects in the river system. To this end, office, field and laboratory work will be carried out Initially, a bibliographic review for the construction of the theoretical-conceptual basis; cartographic survey and acquisition of secondary data. Also, technical procedures of Geographic Information System (GIS), all associated with field verification for the production of thematic maps. During fieldwork, bottom and suspended sediments were sampled, as well as measurements of hydrodynamic variables in cross-sections in the Juba river, Corta Vara stream (left bank tributary) and Sepotuba river. As products were generated: a) geomorphological compartmentalization of the sectors that constitute the river system; b) survey of the contribution of sediments and hydrodynamic aspects and c) spatialization of the main environmental changes occurred in the Juba river basin and in its fluvial system associated with the hydroelectric complex and land uses.