Interference of soil use and occupation in water quality in a watershed with critical water availability

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dc.contributor.authorGuimarães, Túlio Machado Humberto
dc.contributor.authorSalla, Marcio Ricardo
dc.contributor.authorPereira, Carlos Eugênio
dc.contributor.authorJusto, Bruno Braga [UNESP]
dc.contributor.authorRiquieri, Juliana Corrêa
dc.contributor.institutionUniversidade Federal de Uberlândia (UFU)
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.date.accessioned2022-04-28T19:27:42Z
dc.date.available2022-04-28T19:27:42Z
dc.date.issued2019-01-01
dc.description.abstractThe maximum surface flow in Ribeirão do Salitre, Triângulo Mineiro, exceeds the maximum allowed by the current legislation and allocates, at the head of the main tributary, the pit of a phosphate mine. The calibration of the mathematical model of self-purification using the QUALI-TOOL tool was carried out in the dry and rainy period. The influence of soil use and occupation on water quality in different scenarios was evaluated using the MQUAL model to estimate the pollutant loads. The scenarios evaluated the progress of mining, agriculture and livestock activities on the natural soil. Based on the CONAMA Resolution 357: 2005, for class 2 river, the nitrate concentration was below the maximum allowed in all scenarios, that is, 10 mg / L. The ammoniacal nitrogen presented a high concentration only in the scenario in which it was considered 80% of the total area occupied by agriculture, with values higher than 3.7 mg / L. In all scenarios, the parameters BOD, total phosphorus and Escherichia Coli remained above the maximum allowed by the resolution, which are 5.0 mg / L, 0.05 mg / L, 1000 NMP / 100 mL, respectively. The study portrays the importance of planning and of management of water resources in the preservation of surface water quality.en
dc.description.affiliationUniversidade Federal de Uberlândia Faculdade de Engenharia Civil
dc.description.affiliationUniversidade Estadual Paulista Júlio de Mesquita Filho
dc.description.affiliationUnespUniversidade Estadual Paulista Júlio de Mesquita Filho
dc.format.extent229-240
dc.identifier.citationGeociencias, v. 38, n. 1, p. 229-240, 2019.
dc.identifier.issn1980-900X
dc.identifier.issn0101-9082
dc.identifier.scopus2-s2.0-85071199341
dc.identifier.urihttp://hdl.handle.net/11449/221343
dc.language.isopor
dc.relation.ispartofGeociencias
dc.sourceScopus
dc.subjectLand use and occupation
dc.subjectMQUAL
dc.subjectQUALI-TOOL
dc.subjectRibeirão do Salitre
dc.subjectWater quality
dc.titleInterference of soil use and occupation in water quality in a watershed with critical water availabilityen
dc.titleInterferência do uso e ocupação do solo na qualidade da água em bacia hidrográfica com disponibilidade hídrica críticapt
dc.typeArtigo

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