Variation of the water table and salinity in alluvial aquifers of underground dams in the semi-arid region of Rio Grande do Norte, Brazil

Detalhes bibliográficos
Autor(a) principal: de Oiveira Lima, Alexandre
Data de Publicação: 2019
Outros Autores: Lima-Filho, Francisco Pinheiro, da Silva Dias, Nildo, Chipana-Rivera, René, Ferreira Neto, Miguel, de Medeiros Souza, Anderson, do Aragão Rego, Priscila Regina, dos Santos Fernandes, Cleyton
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Bioscience journal (Online)
Texto Completo: https://seer.ufu.br/index.php/biosciencejournal/article/view/41819
Resumo: Despite the growing progress in the construction of underground dams, there are few studies to evaluate and monitor these reservoirs after their construction. Thus, a research study was carried out to evaluate the water table level in alluvial aquifers and water salinity in four underground dams selected in the Cobras river basin, Parelhas municipality, Rio Grande do Norte. Water level variation was monitored using the traditional method and the Ground Penetrating Radar with generation of 3D virtual models. Water samples were collected between the months of December 2010 and December 2011 for electrical conductivity analysis. The results indicate that the accumulation of groundwater and salinity (expressed by electrical conductivity) in the reservoirs were affected by the spatial position within the hydrographic basin (limited occurrence of alluvial aquifer recharge area in headwater sectors) and the presence of surface reservoirs (upstream dams), which promote a more continuous recharge, greater renovation, and reduction of the salinity of the waters of the alluvial aquifer downstream.
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spelling Variation of the water table and salinity in alluvial aquifers of underground dams in the semi-arid region of Rio Grande do Norte, BrazilVariação do nível freático e da salinidade do aquífero aluvial em barragens subterrâneas no semiárido do Rio Grande do NorteSalinityDesertificationHydrochemistryAgricultural SciencesDespite the growing progress in the construction of underground dams, there are few studies to evaluate and monitor these reservoirs after their construction. Thus, a research study was carried out to evaluate the water table level in alluvial aquifers and water salinity in four underground dams selected in the Cobras river basin, Parelhas municipality, Rio Grande do Norte. Water level variation was monitored using the traditional method and the Ground Penetrating Radar with generation of 3D virtual models. Water samples were collected between the months of December 2010 and December 2011 for electrical conductivity analysis. The results indicate that the accumulation of groundwater and salinity (expressed by electrical conductivity) in the reservoirs were affected by the spatial position within the hydrographic basin (limited occurrence of alluvial aquifer recharge area in headwater sectors) and the presence of surface reservoirs (upstream dams), which promote a more continuous recharge, greater renovation, and reduction of the salinity of the waters of the alluvial aquifer downstream.Apesar do crescente avanço na construção de barragens subterrâneas, há poucos estudos de avaliação e monitoramento das barragens subterrâneas após a sua construção. Assim, foi realizada uma pesquisa com o objetivo de avaliar a salinidade da água e a variação do nível freático em aquífero aluvial em quatro barragens subterrâneas selecionadas na microbacia do rio das Cobras, município de Parelhas, Rio Grande do Norte. As amostras de água foram coletadas entre os meses de dezembro de 2010 a dezembro de 2011 para análise da condutividade elétrica. A variação do nível da água foi monitorada utilizando método tradicional e o Ground Penetrating Radar com geração de modelos virtuais 3D. Os resultados indicam que a acumulação da água subterrânea e a sua salinidade (expressa pela condutividade elétrica) nos reservatórios foram afetadas pela posição espacial dentro da bacia hidrográfica (ocorrência limitada de área de recarga do aquífero aluvial em setores de cabeceiras do rio) e pela presença de reservatórios superficiais (açudes à montante), os quais promovem uma recarga mais contínua, maior renovação, e redução da salinidade das águas do aquífero aluvial à jusante.EDUFU2019-04-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.ufu.br/index.php/biosciencejournal/article/view/4181910.14393/BJ-v35n2a20198-41819Bioscience Journal ; Vol. 35 No. 2 (2019): Mar./Apr.; 477-484Bioscience Journal ; v. 35 n. 2 (2019): Mar./Apr.; 477-4841981-3163reponame:Bioscience journal (Online)instname:Universidade Federal de Uberlândia (UFU)instacron:UFUenghttps://seer.ufu.br/index.php/biosciencejournal/article/view/41819/25798Copyright (c) 2019 Alexandre de Oiveira Lima, Francisco Pinheiro Lima-Filho, Nildo da Silva Dias, René Chipana-Rivera, Miguel Ferreira Neto, Anderson de Medeiros Souza, Priscila Regina do Aragão Rego, Cleyton dos Santos Fernandeshttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessde Oiveira Lima, AlexandreLima-Filho, Francisco Pinheiroda Silva Dias, NildoChipana-Rivera, RenéFerreira Neto, Miguelde Medeiros Souza, Andersondo Aragão Rego, Priscila Reginados Santos Fernandes, Cleyton2022-02-02T11:07:36Zoai:ojs.www.seer.ufu.br:article/41819Revistahttps://seer.ufu.br/index.php/biosciencejournalPUBhttps://seer.ufu.br/index.php/biosciencejournal/oaibiosciencej@ufu.br||1981-31631516-3725opendoar:2022-02-02T11:07:36Bioscience journal (Online) - Universidade Federal de Uberlândia (UFU)false
dc.title.none.fl_str_mv Variation of the water table and salinity in alluvial aquifers of underground dams in the semi-arid region of Rio Grande do Norte, Brazil
Variação do nível freático e da salinidade do aquífero aluvial em barragens subterrâneas no semiárido do Rio Grande do Norte
title Variation of the water table and salinity in alluvial aquifers of underground dams in the semi-arid region of Rio Grande do Norte, Brazil
spellingShingle Variation of the water table and salinity in alluvial aquifers of underground dams in the semi-arid region of Rio Grande do Norte, Brazil
de Oiveira Lima, Alexandre
Salinity
Desertification
Hydrochemistry
Agricultural Sciences
title_short Variation of the water table and salinity in alluvial aquifers of underground dams in the semi-arid region of Rio Grande do Norte, Brazil
title_full Variation of the water table and salinity in alluvial aquifers of underground dams in the semi-arid region of Rio Grande do Norte, Brazil
title_fullStr Variation of the water table and salinity in alluvial aquifers of underground dams in the semi-arid region of Rio Grande do Norte, Brazil
title_full_unstemmed Variation of the water table and salinity in alluvial aquifers of underground dams in the semi-arid region of Rio Grande do Norte, Brazil
title_sort Variation of the water table and salinity in alluvial aquifers of underground dams in the semi-arid region of Rio Grande do Norte, Brazil
author de Oiveira Lima, Alexandre
author_facet de Oiveira Lima, Alexandre
Lima-Filho, Francisco Pinheiro
da Silva Dias, Nildo
Chipana-Rivera, René
Ferreira Neto, Miguel
de Medeiros Souza, Anderson
do Aragão Rego, Priscila Regina
dos Santos Fernandes, Cleyton
author_role author
author2 Lima-Filho, Francisco Pinheiro
da Silva Dias, Nildo
Chipana-Rivera, René
Ferreira Neto, Miguel
de Medeiros Souza, Anderson
do Aragão Rego, Priscila Regina
dos Santos Fernandes, Cleyton
author2_role author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv de Oiveira Lima, Alexandre
Lima-Filho, Francisco Pinheiro
da Silva Dias, Nildo
Chipana-Rivera, René
Ferreira Neto, Miguel
de Medeiros Souza, Anderson
do Aragão Rego, Priscila Regina
dos Santos Fernandes, Cleyton
dc.subject.por.fl_str_mv Salinity
Desertification
Hydrochemistry
Agricultural Sciences
topic Salinity
Desertification
Hydrochemistry
Agricultural Sciences
description Despite the growing progress in the construction of underground dams, there are few studies to evaluate and monitor these reservoirs after their construction. Thus, a research study was carried out to evaluate the water table level in alluvial aquifers and water salinity in four underground dams selected in the Cobras river basin, Parelhas municipality, Rio Grande do Norte. Water level variation was monitored using the traditional method and the Ground Penetrating Radar with generation of 3D virtual models. Water samples were collected between the months of December 2010 and December 2011 for electrical conductivity analysis. The results indicate that the accumulation of groundwater and salinity (expressed by electrical conductivity) in the reservoirs were affected by the spatial position within the hydrographic basin (limited occurrence of alluvial aquifer recharge area in headwater sectors) and the presence of surface reservoirs (upstream dams), which promote a more continuous recharge, greater renovation, and reduction of the salinity of the waters of the alluvial aquifer downstream.
publishDate 2019
dc.date.none.fl_str_mv 2019-04-12
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://seer.ufu.br/index.php/biosciencejournal/article/view/41819
10.14393/BJ-v35n2a20198-41819
url https://seer.ufu.br/index.php/biosciencejournal/article/view/41819
identifier_str_mv 10.14393/BJ-v35n2a20198-41819
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://seer.ufu.br/index.php/biosciencejournal/article/view/41819/25798
dc.rights.driver.fl_str_mv https://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv EDUFU
publisher.none.fl_str_mv EDUFU
dc.source.none.fl_str_mv Bioscience Journal ; Vol. 35 No. 2 (2019): Mar./Apr.; 477-484
Bioscience Journal ; v. 35 n. 2 (2019): Mar./Apr.; 477-484
1981-3163
reponame:Bioscience journal (Online)
instname:Universidade Federal de Uberlândia (UFU)
instacron:UFU
instname_str Universidade Federal de Uberlândia (UFU)
instacron_str UFU
institution UFU
reponame_str Bioscience journal (Online)
collection Bioscience journal (Online)
repository.name.fl_str_mv Bioscience journal (Online) - Universidade Federal de Uberlândia (UFU)
repository.mail.fl_str_mv biosciencej@ufu.br||
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