Hydrologic modeling for sustainable water resources management in urbanized karst areas

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dc.creatorHugo Henrique Cardoso de Salis
dc.creatorAdriana Monteiro da Costa
dc.creatorJoão Herbert Moreira Vianna
dc.creatorMarysol Azeneth Schuler
dc.creatorAnnika Künne
dc.creatorLuís Filipe Sanches Fernandes
dc.creatorFernando António Leal Pacheco
dc.date.accessioned2023-04-28T19:45:11Z
dc.date.accessioned2025-09-09T00:28:25Z
dc.date.available2023-04-28T19:45:11Z
dc.date.issued2019
dc.description.sponsorshipOutra Agência
dc.format.mimetypepdf
dc.identifier.doihttps://doi.org/10.3390/ijerph16142542
dc.identifier.issn1660-4601
dc.identifier.urihttps://hdl.handle.net/1843/52680
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofInternational journal of environmental research and public health
dc.rightsAcesso Aberto
dc.subjectAquíferos
dc.subjectCarste
dc.subjectSolo - uso
dc.subjectÁgua potável
dc.subject.otherkarst aquifers
dc.subject.otherrecharge
dc.subject.otherland use and occupation
dc.subject.otherwaterproofing
dc.subject.otherhydrologic modeling
dc.subject.otherJAMS J2000
dc.subject.otherwater resources management
dc.subject.othersustainability
dc.titleHydrologic modeling for sustainable water resources management in urbanized karst areas
dc.title.alternativeModelagem hidrológica para gestão sustentável de recursos hídricos em áreas cársticas urbanizadas
dc.typeArtigo de periódico
local.citation.issue14
local.citation.volume16
local.description.resumoThe potential of karst aquifers as a drinking water resource is substantial because of their large storage capacity gained in the course of carbonate dissolution. Carbonate dissolution and consequent development of preferential paths are also the reasons for the complex behavior of these aquifers as regards surface and underground flow. Hydrological modeling is therefore of paramount importance for an adequate assessment of flow components in catchments shaped on karsts. The cross tabulation of such components with geology, soils, and land use data in Geographic Information Systems helps decision makers to set up sustainable groundwater abstractions and allocate areas for storage of quality surface water, in the context of conjunctive water resources management. In the present study, a hydrologic modeling using the JAMS J2000 software was conducted in a karst area of Jequitiba River basin located near the Sete Lagoas town in the state of Minas Gerais, Brazil. The results revealed a very high surface water component explained by urbanization of Sete Lagoas, which hampers the recharge of 7.9 hm3 yr−1 of storm water. They also exposed a very large negative difference (−8.3 hm3 yr−1) between groundwater availability (6.3 hm3 yr−1) and current groundwater abstraction from the karst aquifer (14.6 hm3 yr−1), which is in keeping with previously reported water table declines around drilled wells that can reach 48 m in old wells used for public water supply. Artificial recharge of excess surface flow is not recommended within the urban areas, given the high risk of groundwater contamination with metals and hydrocarbons potentially transported in storm water, as well as development of suffosional sinkholes as a consequence of concentrated storm flow. The surface component could however be stored in small dams in forested areas from the catchment headwaters and diverted to the urban area to complement the drinking water supply. The percolation in soil was estimated to be high in areas used for agriculture and pastures. The implementation of correct fertilizing, management, and irrigation practices are considered crucial to attenuate potential contamination of groundwater and suffosional sinkhole development in these areas.
local.identifier.orcidhttps://orcid.org/0000-0002-9866-7246
local.identifier.orcidhttps://orcid.org/0000-0002-8855-4352
local.identifier.orcidhttps://orcid.org/0000-0002-4925-0882
local.identifier.orcidhttps://orcid.org/0000-0002-9486-7160
local.identifier.orcidhttps://orcid.org/0000-0002-2399-5261
local.publisher.countryBrasil
local.publisher.departmentIGC - DEPARTAMENTO DE GEOGRAFIA
local.publisher.initialsUFMG
local.url.externahttps://www.mdpi.com/1660-4601/16/14/2542

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