Use of GIS and R to estimate climate change impacts on groundwater recharge in Portoviejo River watershed, Ecuador

Future groundwater recharge estimations are helpful tools for water resources management. However, there is a need for more information about it in many parts of the world, including the Portoviejo River watershed (PRW) in the West of Ecuador, a semi-arid zone with a water deficit where climate chan...

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Detalles Bibliográficos
Autores: Intriago, Angel, Galvão, Paulo, Conicelli, Bruno
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:Ecuador
Institución:Universidad Regional Amazónica
Repositorio:Repositorio Universidad Regional Amazónica
OAI Identifier:oai:repositorio.ikiam.edu.ec:RD_IKIAM/663
Acceso en línea:https://doi.org/10.1016/j.jsames.2023.104288.
http://repositorio.ikiam.edu.ec/jspui/handle/RD_IKIAM/663
Access Level:acceso abierto
Palabra clave:Climate change
Portoviejo River
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spelling Use of GIS and R to estimate climate change impacts on groundwater recharge in Portoviejo River watershed, EcuadorIntriago, AngelGalvão, PauloConicelli, BrunoClimate changePortoviejo RiverFuture groundwater recharge estimations are helpful tools for water resources management. However, there is a need for more information about it in many parts of the world, including the Portoviejo River watershed (PRW) in the West of Ecuador, a semi-arid zone with a water deficit where climate change impacts could increase pressure on groundwater resources. Geographical Information Systems were used in this paper, owing to their simplicity of inputs and accuracy of outputs, to estimate current and future (2021–2070) groundwater recharge in the PRW. The study is divided into two stages: 1) a runoff map based on soil permeability, land use, and terrain slope, and 2) current and future recharge calculations using the Thornthwaite and Mather water balance method. Future precipitation and temperature data from an ensemble of four Global Circulation Models were used as inputs, along with a map of runoff spatial distribution. The representative concentration pathways (RCP) 4.5 and 8.5 were the climate change scenarios used in this study. The results showed that the location of the groundwater recharge zone would be impacted by future precipitation and temperature variability in both scenarios for the next fifty years. For the decade 2060–2070 and the scenario RCP 4.5, the highest recharge rate zones were located in the lowlands of the PRW surrounding Portoviejo city. In scenario RCP 8.5, the highest groundwater recharge areas increase considerably in the entire PRW. Currently, the highest groundwater recharge zones are in the highlands of the PRW. The future groundwater recharge scenarios provide information to decision-makers regarding land use, since the future groundwater recharge zones will be in the expansion areas of Portoviejo city.Scopus2023-04-03T19:08:25Z2023-04-03T19:08:25Z2023info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfAngel Intriago, Paulo Galvão, Bruno Conicelli, Use of GIS and R to estimate climate change impacts on groundwater recharge in Portoviejo River watershed, Ecuador, Journal of South American Earth Sciences, Volume 124, 2023, 104288, ISSN 0895-9811, https://doi.org/10.1016/j.jsames.2023.104288.https://doi.org/10.1016/j.jsames.2023.104288.http://repositorio.ikiam.edu.ec/jspui/handle/RD_IKIAM/663enTRABAJOS DE TITULACIÓN;TT-H-IKIAM-000012info:eu-repo/semantics/openAccessreponame:Repositorio Universidad Regional Amazónicainstname:Universidad Regional Amazónicainstacron:IKIAM2023-04-04T08:00:23Zoai:repositorio.ikiam.edu.ec:RD_IKIAM/663Institucionalhttps://repositorio.ikiam.edu.ec/Universidad públicahttps://www.ikiam.edu.ec/https://repositorio.ikiam.edu.ec/oaiEcuador...opendoar:02023-04-04T08:00:23falseInstitucionalhttps://repositorio.ikiam.edu.ec/Universidad públicahttps://www.ikiam.edu.ec/https://repositorio.ikiam.edu.ec/oai.Ecuador...opendoar:02023-04-04T08:00:23Repositorio Universidad Regional Amazónica - Universidad Regional Amazónicafalse
dc.title.none.fl_str_mv Use of GIS and R to estimate climate change impacts on groundwater recharge in Portoviejo River watershed, Ecuador
title Use of GIS and R to estimate climate change impacts on groundwater recharge in Portoviejo River watershed, Ecuador
spellingShingle Use of GIS and R to estimate climate change impacts on groundwater recharge in Portoviejo River watershed, Ecuador
Intriago, Angel
Climate change
Portoviejo River
title_short Use of GIS and R to estimate climate change impacts on groundwater recharge in Portoviejo River watershed, Ecuador
title_full Use of GIS and R to estimate climate change impacts on groundwater recharge in Portoviejo River watershed, Ecuador
title_fullStr Use of GIS and R to estimate climate change impacts on groundwater recharge in Portoviejo River watershed, Ecuador
title_full_unstemmed Use of GIS and R to estimate climate change impacts on groundwater recharge in Portoviejo River watershed, Ecuador
title_sort Use of GIS and R to estimate climate change impacts on groundwater recharge in Portoviejo River watershed, Ecuador
dc.creator.none.fl_str_mv Intriago, Angel
Galvão, Paulo
Conicelli, Bruno
author Intriago, Angel
author_facet Intriago, Angel
Galvão, Paulo
Conicelli, Bruno
author_role author
author2 Galvão, Paulo
Conicelli, Bruno
author2_role author
author
dc.subject.none.fl_str_mv Climate change
Portoviejo River
topic Climate change
Portoviejo River
description Future groundwater recharge estimations are helpful tools for water resources management. However, there is a need for more information about it in many parts of the world, including the Portoviejo River watershed (PRW) in the West of Ecuador, a semi-arid zone with a water deficit where climate change impacts could increase pressure on groundwater resources. Geographical Information Systems were used in this paper, owing to their simplicity of inputs and accuracy of outputs, to estimate current and future (2021–2070) groundwater recharge in the PRW. The study is divided into two stages: 1) a runoff map based on soil permeability, land use, and terrain slope, and 2) current and future recharge calculations using the Thornthwaite and Mather water balance method. Future precipitation and temperature data from an ensemble of four Global Circulation Models were used as inputs, along with a map of runoff spatial distribution. The representative concentration pathways (RCP) 4.5 and 8.5 were the climate change scenarios used in this study. The results showed that the location of the groundwater recharge zone would be impacted by future precipitation and temperature variability in both scenarios for the next fifty years. For the decade 2060–2070 and the scenario RCP 4.5, the highest recharge rate zones were located in the lowlands of the PRW surrounding Portoviejo city. In scenario RCP 8.5, the highest groundwater recharge areas increase considerably in the entire PRW. Currently, the highest groundwater recharge zones are in the highlands of the PRW. The future groundwater recharge scenarios provide information to decision-makers regarding land use, since the future groundwater recharge zones will be in the expansion areas of Portoviejo city.
publishDate 2023
dc.date.none.fl_str_mv 2023-04-03T19:08:25Z
2023-04-03T19:08:25Z
2023
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv Angel Intriago, Paulo Galvão, Bruno Conicelli, Use of GIS and R to estimate climate change impacts on groundwater recharge in Portoviejo River watershed, Ecuador, Journal of South American Earth Sciences, Volume 124, 2023, 104288, ISSN 0895-9811, https://doi.org/10.1016/j.jsames.2023.104288.
https://doi.org/10.1016/j.jsames.2023.104288.
http://repositorio.ikiam.edu.ec/jspui/handle/RD_IKIAM/663
identifier_str_mv Angel Intriago, Paulo Galvão, Bruno Conicelli, Use of GIS and R to estimate climate change impacts on groundwater recharge in Portoviejo River watershed, Ecuador, Journal of South American Earth Sciences, Volume 124, 2023, 104288, ISSN 0895-9811, https://doi.org/10.1016/j.jsames.2023.104288.
url https://doi.org/10.1016/j.jsames.2023.104288.
http://repositorio.ikiam.edu.ec/jspui/handle/RD_IKIAM/663
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dc.publisher.none.fl_str_mv Scopus
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