VARIABILIDAD ESPACIAL DE ESTIMACIONES DE GENERACIÓN Y CONECTIVIDAD DE SEDIMENTOS EN CUENCAS DE CONTRIBUCIÓN UHE

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Resumen

El conocimiento de la variabilidad espacial de la producción de sedimentos y de la conectividad permite identificar, con considerable precisión, diferentes escenarios de generación y flujo de materiales detríticos en cuencas hidrográficas. Este artículo tiene como objetivo relacionar la variabilidad espacial de la pérdida de suelo y la conectividad de sedimentos en una cuenca de contribución del embalse de la central hidroeléctrica de Batalha en el municipio de Cristalina en Goiás, Brasil. La metodología comprendió la relación bivariada entre las estimaciones de producción (MUSLE) y el Índice de Conectividad (IC), ambas aplicadas al nivel de pendiente en el área de contribución de la cuenca. Los resultados indican la configuración de cuatro patrones espaciales: baja producción y bajo índice de conectividad en la mayor parte del área que comprende las parcelas  más altas y más planas; baja producción y alto nivel de conectividad en las cercanías de manantiales y canales de drenaje; alta producción y bajo índice de conectividad en las parcelas  más altas, escarpadas y distantes; y alta producción y alta conectividad que prevalecen en las parcelas  más empinadas y cercanas a los canales o incluso en las más distantes y conectadas al canal a través de líneas de escorrentía superficial más intensas. En ese marco, se destaca la importancia de esta metodología para la identificación de áreas críticas y, por ende, áreas prioritarias para la implementación de medidas de mitigación de los impactos derivados de los procesos de erosión hídrica.

Biografía del autor

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PhD (2015) in Geography from the Federal University of Goiás. From 2008 to 2009, he worked on the Survey, Study and Development of Biofuel Production Potential project in the Area of Influence of the North-South Railroad, which involved modeling socio-environmental conditions applied to the implementation of biodiesel plants. During the year 2010 he served as a P III level teacher of elementary and high school at the State Department of Education of Goiás. From 2014 to 2017 he worked on the project Monitoring and Study of Alternative Techniques for Stabilizing Erosive Processes in UHE Reservoirs under the Furnas-Eletrobras-UFG agreement. He is currently a Geographer at the Institute of Socio-Environmental Studies at the Federal University of Goiás and a Furnas-Eletrobrás R&D Scholar, where he develops research related to hydrological modeling and erosion processes, as well as the input and transfer of sediments in reservoir basins of UHEs, agreement ANEEL - UFG. In the technical area, he has experience in the use and teaching of Geoprocessing, Geographic Information Systems and Remote Sensing, as well as in the development of different methodologies applied to hydrological modeling and erosion processes. In teaching he has experience in teaching Geography at Elementary and Middle levels, as well as in advising on evaluation methodologies for Student Admission Commissions. At the technological and graduation levels in the teaching of disciplines related to Physical Geography.

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PhD in Geotechnics from the University of Brasília (2006). He is currently an associate professor 4 at the Federal University of Goiás and is also a permanent professor in the Graduate Course in Geography at the State University of Goiás. He has experience in Geotechnical and Geoenvironmental Cartography and in Geoprocessing, mainly in research on the themes, erosion processes in tropical soils and urban flooding.

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PhD in Geotechnics from the University of Brasilia (2000) and postdoctoral internships in 2008 at the University of Sydney-Australia and in 2016 at Purdue University-USA. He is currently a Full Professor at the School of Civil and Environmental Engineering at UFG. He works in the Graduate Program in Geotechnics, Structures and Civil Construction / UFG. He has experience in the area of Geotechnics, working mainly in the areas of Foundations, Erosions, Tropical Soils, In-situ Tests and Numerical Analysis.

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PhD in Geotechnics from the University of São Paulo - São Carlos (1994), with a postdoctoral internship in Geoenvironmental Cartography at the Technical University of Berlin (1997) and in Tridimensional Cartography at the New University of Lisbon (2007). He was Coordinator of the Graduate Program in Geotechnics at the University of Brasília and Co-editor of the journals Solos & Rochas and Geotechnics, member of the advisory body of the Revista Geociências Unesp. Representative member and of the Deliberative Council of the Brazilian Association of Engineering and Environmental Geology, representative member, member of the Council and president of the Technical Commission of Environmental Geotechnics of the Brazilian Association of Soil Mechanics and Geotechnical Engineering. He has guided more than fifty graduate students in the areas of Civil Engineering, Geosciences and Sustainable Development. Leader of the research group on "Geotechnical Cartography and Geoprocessing". Conducts research on the following themes: municipal and urban geotechnical cartography, disasters associated with natural phenomena, tropical soils, erosion, three-dimensional modeling of underground space, mapping of land use and cover, environmental studies related to urban solid waste and sustainable development.

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PhD in Environmental Sciences from the Federal University of Goiás (2008) and a postdoctoral degree in Geotechnics and Sustainable Construction from Heriot-Watt University (2015). She has experience in Civil Engineering, with emphasis on dams, highways and the environment. She carries out research mainly in the following areas of concentration: geotechnical materials with application in dams and highways, erosion processes, energy sustainability and environmental management. Adjunct Professor at the Pontifical Catholic University of Goiás, working in the undergraduate course in Civil Engineering and stricto sensu master's degree in Production and Systems Engineering. Technical Coordinator of Research, Development and Innovation Projects. Coordinator of the Mechanics of Materials Laboratory at Eletrobras Furnas. Journal reviewer: Journal of Environmental Management; Soils and Rocks; Electronic Magazine in Civil Engineering. Member of the Commission for the Special Study of Soils (ABNT/CEE 221); CBDB and ABMS.

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Master in Production and Systems Engineering from the Pontifical Catholic University of Goiás (2022). He is currently a Systems Analyst at Furnas Centrais Elétricas SA. Acting mainly on the following subjects: Sediments, Reservoir, Computational Modeling, Hydrosedimentology, Sanding and Hydroenergetic Resources.

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Publicado
15/02/2023
##submission.howToCite##
NUNES, Elizon Dias et al. VARIABILIDAD ESPACIAL DE ESTIMACIONES DE GENERACIÓN Y CONECTIVIDAD DE SEDIMENTOS EN CUENCAS DE CONTRIBUCIÓN UHE. Mercator, Fortaleza, v. 21, feb. 2023. ISSN 1984-2201. Disponible en: <http://www.mercator.ufc.br/mercator/article/view/e21026>. Fecha de acceso: 12 feb. 2026 doi: https://doi.org/10.4215/rm2022.e21026.
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