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Effect of population dynamics and land use on the contribution of sediments to reservoirs for hydropower generation

dc.creatorBotero B.A.
dc.creatorParra J.C.
dc.creatorOtálvaro M.
dc.date2019
dc.date.accessioned2020-04-29T14:54:04Z
dc.date.available2020-04-29T14:54:04Z
dc.identifier.issn1746448X
dc.identifier.urihttp://hdl.handle.net/11407/5800
dc.descriptionSediment load in reservoirs causes loss of reservoir storage and reduces its usable life. There are management strategies focused in sediment removal or reducing trapping in reservoirs, and there are basin management strategies oriented to reduce sediment production and load reaching reservoirs. In a social and political moment, like the present time in Colombia, rural return migration is expected. Ex-ante evaluation of strategies to reducing sediment production is required, in order to implement them previously and avoid the acceleration of the reduction of the usable life of reservoirs. This paper presents the assessment of the impact on sediment production in a basin according to different land use planning strategies, in the context of the rural population dynamics expected in the coming years in Colombia. The San Carlos River basin contributes to a reservoir for hydropower generation, which currently generates the major percentage of hydropower energy in the power generation matrix of Colombia. We implemented on the basin the TETIS model, a distributed conceptual hydrological and sediment model. This model allows to estimate sediment production, through simulation of solid discharge series at anywhere in the basin. The TETIS sedimentological submodel was calibrated and validated using reservoir sedimentation volumes as an estimator of the total sediment transport. Different strategies and alternatives for land use were established, including lack of planning and agricultural policies. Results show an increase in the sediment production in the long term, if a policy on the adequate use of the soil is not implemented. The results allow to define the strategic zones of the basin where the efforts for the implementation of good agricultural practices, reforestation and soil conservation must be focused. © 2018 Oxford University Press. All rights reserved.
dc.language.isoeng
dc.publisherWITPress
dc.relation.isversionofhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85078303653&partnerID=40&md5=bcb82e9b3fa4cca447b8feae66987203
dc.sourceWIT Transactions on Ecology and the Environment
dc.subjectManagement of catchments
dc.subjectPopulation dynamics
dc.subjectSediment production
dc.titleEffect of population dynamics and land use on the contribution of sediments to reservoirs for hydropower generation
dc.typeArticleeng
dc.rights.accessrightsinfo:eu-repo/semantics/restrictedAccess
dc.publisher.programIngeniería Civil
dc.relation.citationvolume239
dc.publisher.facultyFacultad de Ingenierías
dc.affiliationBotero, B.A., Universidad de Medellín, Facultad de Ingenierías, Medellín, Colombia; Parra, J.C., Politécnico Colombiano Jaime Isaza Cadavid., Facultad de Ingenierías, ISAII, Medellín, Colombia; Otálvaro, M., Universidad de Medellín, Facultad de Ingenierías, Medellín, Colombia
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dc.type.versioninfo:eu-repo/semantics/publishedVersion
dc.type.driverinfo:eu-repo/semantics/article


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