Changes in the flow and precipitation regime in a stretch of the Araçuaí River Basin, Minas Gerais state: are we heading towards water scarcity?

Detalhes bibliográficos
Autor(a) principal: Oliveira, Pedro Henrique França
Data de Publicação: 2021
Outros Autores: Vieira, Fabianna Resende, Christofaro, Cristiano, Rocha, Wellington Willian, Silva, Alexandre Christofaro
Tipo de documento: Artigo
Idioma: por
Título da fonte: Revista Espinhaço
Texto Completo: https://revistas.ufvjm.edu.br/revista-espinhaco/article/view/180
Resumo: The analysis of historical series of precipitation and flow allows obtaining information on trends of increase or decrease over time of these variables. From the relationship between these two variables, it is possible to make projections of situations of scarcity water resources in watersheds. e objective of this work was to evaluate the occurrence of temporal trends of precipitation and flow between 1995 and 2011 in the upper Araçuaí River Basin-MG, as well as to analyze the relationship between the flow and precipitation regimes. e relationship between monthly flow and rainfall was characterized using a linear model. Time trend tests (Mann-Kendall) were applied to the time series of precipitation (P) and flow (Q). e results showed a strong correlation (r = 0.8) between monthly flow and precipitation, both showing a tendency to decrease over the period evaluated. e interannual variability and trend analysis of the Q/ P coefficient indicate that the intensity of flow reduction is greater than that of precipitation, indicating that land use and occupation may also be affecting the reduction in flow in the region. Theresults can contribute to the planning of the use of water resourcesin the region.
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spelling Changes in the flow and precipitation regime in a stretch of the Araçuaí River Basin, Minas Gerais state: are we heading towards water scarcity?Alterações no regime de vazão e precipitação em trecho da Bacia do Rio Araçuaí, Minas Gerais: caminhamos para a escassez hídrica?escassez hídricasemiáridomudanças climáticaswater scarcitysemiaridclimate changesThe analysis of historical series of precipitation and flow allows obtaining information on trends of increase or decrease over time of these variables. From the relationship between these two variables, it is possible to make projections of situations of scarcity water resources in watersheds. e objective of this work was to evaluate the occurrence of temporal trends of precipitation and flow between 1995 and 2011 in the upper Araçuaí River Basin-MG, as well as to analyze the relationship between the flow and precipitation regimes. e relationship between monthly flow and rainfall was characterized using a linear model. Time trend tests (Mann-Kendall) were applied to the time series of precipitation (P) and flow (Q). e results showed a strong correlation (r = 0.8) between monthly flow and precipitation, both showing a tendency to decrease over the period evaluated. e interannual variability and trend analysis of the Q/ P coefficient indicate that the intensity of flow reduction is greater than that of precipitation, indicating that land use and occupation may also be affecting the reduction in flow in the region. Theresults can contribute to the planning of the use of water resourcesin the region.A análise de séries históricas de precipitação e vazão permite a obtenção de informações sobre tendências de aumento ou diminuição ao longo do tempo dessas variáveis. A caracterização da relação entre essas variáveis pode contribuir para previsões de situações escassez dos recursos hídricos em bacias hidrográficas. O objetivo deste trabalho foi avaliar a ocorrência de tendências temporais de precipitação e vazão entre 1995 e 2011 no trecho alto da Bacia do Rio Araçuaí-MG, bem como caracterizar a relação entre os regimes de vazão e de precipitação. A relação entre a vazão e a chuva mensais foi caracterizada por meio de modelo linear. Testes de tendência temporal (Mann-Kendall) foram aplicados nas séries temporais de precipitação (P) e vazão (Q). Os resultados demonstraram uma forte correlação (r = 0,8) entre a vazão e a precipitação mensais, ambas apresentando tendência de redução ao longo do período avaliado. A variabilidade interanual e análise de tendência do coeficiente Q/P indica que a intensidade de redução da vazão apresenta-se maior do que a da precipitação, indicando que o uso e ocupação da terra também podem estar afetando a redução da vazão na região. Os resultados podem contribuir para o planejamento do uso dos recursos hídricos na região.UFVJM2021-10-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArtigo avaliado pelos Paresapplication/pdfhttps://revistas.ufvjm.edu.br/revista-espinhaco/article/view/18010.5281/zenodo.5502194Revista Espinhaço ; Revista Espinhaço #192317-0611reponame:Revista Espinhaçoinstname:Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM)instacron:UFVJMporhttps://revistas.ufvjm.edu.br/revista-espinhaco/article/view/180/190Copyright (c) 2022 Revista Espinhaço https://creativecommons.org/licenses/by-nc-nd/4.0info:eu-repo/semantics/openAccessOliveira, Pedro Henrique FrançaVieira, Fabianna ResendeChristofaro, CristianoRocha, Wellington WillianSilva, Alexandre Christofaro2022-07-22T18:49:12Zoai:ojs.pkp.sfu.ca:article/180Revistahttps://revistaespinhaco.com/index.php/revista/indexPUBhttps://revistas.ufvjm.edu.br/revista-espinhaco/oairevista.espinhaco@gmail.com || doug.sathler@gmail.com2317-06112317-0611opendoar:2022-07-22T18:49:12Revista Espinhaço - Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM)false
dc.title.none.fl_str_mv Changes in the flow and precipitation regime in a stretch of the Araçuaí River Basin, Minas Gerais state: are we heading towards water scarcity?
Alterações no regime de vazão e precipitação em trecho da Bacia do Rio Araçuaí, Minas Gerais: caminhamos para a escassez hídrica?
title Changes in the flow and precipitation regime in a stretch of the Araçuaí River Basin, Minas Gerais state: are we heading towards water scarcity?
spellingShingle Changes in the flow and precipitation regime in a stretch of the Araçuaí River Basin, Minas Gerais state: are we heading towards water scarcity?
Oliveira, Pedro Henrique França
escassez hídrica
semiárido
mudanças climáticas
water scarcity
semiarid
climate changes
title_short Changes in the flow and precipitation regime in a stretch of the Araçuaí River Basin, Minas Gerais state: are we heading towards water scarcity?
title_full Changes in the flow and precipitation regime in a stretch of the Araçuaí River Basin, Minas Gerais state: are we heading towards water scarcity?
title_fullStr Changes in the flow and precipitation regime in a stretch of the Araçuaí River Basin, Minas Gerais state: are we heading towards water scarcity?
title_full_unstemmed Changes in the flow and precipitation regime in a stretch of the Araçuaí River Basin, Minas Gerais state: are we heading towards water scarcity?
title_sort Changes in the flow and precipitation regime in a stretch of the Araçuaí River Basin, Minas Gerais state: are we heading towards water scarcity?
author Oliveira, Pedro Henrique França
author_facet Oliveira, Pedro Henrique França
Vieira, Fabianna Resende
Christofaro, Cristiano
Rocha, Wellington Willian
Silva, Alexandre Christofaro
author_role author
author2 Vieira, Fabianna Resende
Christofaro, Cristiano
Rocha, Wellington Willian
Silva, Alexandre Christofaro
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Oliveira, Pedro Henrique França
Vieira, Fabianna Resende
Christofaro, Cristiano
Rocha, Wellington Willian
Silva, Alexandre Christofaro
dc.subject.por.fl_str_mv escassez hídrica
semiárido
mudanças climáticas
water scarcity
semiarid
climate changes
topic escassez hídrica
semiárido
mudanças climáticas
water scarcity
semiarid
climate changes
description The analysis of historical series of precipitation and flow allows obtaining information on trends of increase or decrease over time of these variables. From the relationship between these two variables, it is possible to make projections of situations of scarcity water resources in watersheds. e objective of this work was to evaluate the occurrence of temporal trends of precipitation and flow between 1995 and 2011 in the upper Araçuaí River Basin-MG, as well as to analyze the relationship between the flow and precipitation regimes. e relationship between monthly flow and rainfall was characterized using a linear model. Time trend tests (Mann-Kendall) were applied to the time series of precipitation (P) and flow (Q). e results showed a strong correlation (r = 0.8) between monthly flow and precipitation, both showing a tendency to decrease over the period evaluated. e interannual variability and trend analysis of the Q/ P coefficient indicate that the intensity of flow reduction is greater than that of precipitation, indicating that land use and occupation may also be affecting the reduction in flow in the region. Theresults can contribute to the planning of the use of water resourcesin the region.
publishDate 2021
dc.date.none.fl_str_mv 2021-10-11
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Artigo avaliado pelos Pares
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistas.ufvjm.edu.br/revista-espinhaco/article/view/180
10.5281/zenodo.5502194
url https://revistas.ufvjm.edu.br/revista-espinhaco/article/view/180
identifier_str_mv 10.5281/zenodo.5502194
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://revistas.ufvjm.edu.br/revista-espinhaco/article/view/180/190
dc.rights.driver.fl_str_mv Copyright (c) 2022 Revista Espinhaço
https://creativecommons.org/licenses/by-nc-nd/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2022 Revista Espinhaço
https://creativecommons.org/licenses/by-nc-nd/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv UFVJM
publisher.none.fl_str_mv UFVJM
dc.source.none.fl_str_mv Revista Espinhaço ; Revista Espinhaço #19
2317-0611
reponame:Revista Espinhaço
instname:Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM)
instacron:UFVJM
instname_str Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM)
instacron_str UFVJM
institution UFVJM
reponame_str Revista Espinhaço
collection Revista Espinhaço
repository.name.fl_str_mv Revista Espinhaço - Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM)
repository.mail.fl_str_mv revista.espinhaco@gmail.com || doug.sathler@gmail.com
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