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dc.creatorOliveira, Tamires Alves-
dc.creatorViola, Marcelo Ribeiro-
dc.creatorMello, Carlos Rogerio de-
dc.creatorGiongo, Marcos-
dc.creatorCoelho, Gilberto-
dc.date.accessioned2017-09-04T16:50:02Z-
dc.date.available2017-09-04T16:50:02Z-
dc.date.issued2015-03-05-
dc.identifier.citationOLIVEIRA, T. A. et al. Natural vulnerability of water resources in the Formoso River basin, Northern Brazil. African Journal of Agricultural Research, [S. l.], v. 10, n. 10, p. 1107-1114, Mar. 2015.pt_BR
dc.identifier.urirepositorio.ufla.br/jspui/handle/1/15330-
dc.description.abstractThe natural vulnerability characterization provides fundamental support for identification of areas more susceptible from the hydrology point of view, assuring the maintenance of water resource features. In this context, this study aimed to characterize the natural vulnerability of water resources based on long-term streamflows, base flow and aquifers’ susceptibility to contamination, for Formoso River basin, located in southwestern Tocantins. For that, subdivision by level 5 Ottobasins and discharge and precipitation data sets, both available from the “Brazilian National Water Agency”, and the geological map developed by “Tocantins State Bureau of Planning” (SEPLAN) were used. The final natural vulnerability of water resources presented degrees varying from low to very high. Areas with lower vulnerability were observed in the basin headwaters, mainly due to the greatest both long-term (SYqlt) and 90% of the exceedance (SY90%) specific discharges. “High” vulnerability were identified in most of the middle basin course while “Very High” vulnerability in the lower basin course given by lower SYqlt and SY90% and by the occurrence of the alluvial aquifers which present high natural susceptibility to contamination.pt_BR
dc.description.urihttp://repositorio.ufla.br/jspui/handle/1/15330-
dc.languageen_USpt_BR
dc.publisherAcademic Journalspt_BR
dc.rightsAttribution 4.0 International*
dc.rightsacesso abertopt_BR
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.sourceAfrican Journal of Agricultural Researchpt_BR
dc.subjectWatersheds – Formoso River, State of Tocantins, Brazilpt_BR
dc.subjectWater resources – Contaminationpt_BR
dc.subjectStreamflowpt_BR
dc.subjectAquiferspt_BR
dc.subjectBacias hidrográficas – Rio Formoso, Tocantinspt_BR
dc.subjectRecursos hídricos – Contaminaçãopt_BR
dc.subjectVazões naturaispt_BR
dc.subjectAquíferospt_BR
dc.titleNatural vulnerability of water resources in the Formoso River basin, Northern Brazilpt_BR
dc.typeArtigopt_BR
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