Impacts of climate change and pumping on groundwater resources in the Kou River basin, Burkina Faso
West Africa is subject to climatic variability with a long period of drought during the 1970s–1990s whose impact on groundwater remains poorly studied. This work focuses on the Kou basin in Burkina Faso, which holds a large groundwater resource resulting in exceptional springs. This resource shows s...
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| Format: | Article |
| Language: | English |
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Académie des sciences
2023-05-01
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| Series: | Comptes Rendus. Géoscience |
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| Online Access: | https://comptes-rendus.academie-sciences.fr/geoscience/articles/10.5802/crgeos.207/ |
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| author | Tirogo, Justine Jost, Anne Biaou, Angelbert Koussoubé, Youssouf Ribstein, Pierre Dakouré, Denis |
| author_facet | Tirogo, Justine Jost, Anne Biaou, Angelbert Koussoubé, Youssouf Ribstein, Pierre Dakouré, Denis |
| author_sort | Tirogo, Justine |
| collection | DOAJ |
| description | West Africa is subject to climatic variability with a long period of drought during the 1970s–1990s whose impact on groundwater remains poorly studied. This work focuses on the Kou basin in Burkina Faso, which holds a large groundwater resource resulting in exceptional springs. This resource shows signs of depletion that raise a critical question: What is the share of climate and that of withdrawals in the depletion of the resource? To answer this question, we used a hydrogeological model calibrated in steady state and in transient regime (monthly time step 1995–2014; annual time step 1961–2014). The results showed that pumping has a significant impact on the resource, especially in the vicinity of the pumping areas, and caused approximately 30% of the observed decrease in spring discharge. Drought periods and consecutive years without recharge also led to a decrease in groundwater levels. Thus, precipitation deficits and variability, combined with increasing pumping, have endangered the resource. |
| format | Article |
| id | doaj-art-94d42407ce2a40a3986a9adc6ef3d47e |
| institution | Kabale University |
| issn | 1778-7025 |
| language | English |
| publishDate | 2023-05-01 |
| publisher | Académie des sciences |
| record_format | Article |
| series | Comptes Rendus. Géoscience |
| spelling | doaj-art-94d42407ce2a40a3986a9adc6ef3d47e2025-02-07T10:40:14ZengAcadémie des sciencesComptes Rendus. Géoscience1778-70252023-05-01355S143946410.5802/crgeos.20710.5802/crgeos.207Impacts of climate change and pumping on groundwater resources in the Kou River basin, Burkina FasoTirogo, Justine0https://orcid.org/0000-0001-9263-8682Jost, Anne1https://orcid.org/0000-0002-0925-3376Biaou, Angelbert2https://orcid.org/0000-0002-1911-1179Koussoubé, Youssouf3https://orcid.org/0000-0002-4314-443XRibstein, Pierre4https://orcid.org/0000-0002-1710-8267Dakouré, Denis5Programme d’Approvisionnement en Eau et d’Assainissement, Ouagadougou, Burkina FasoSorbonne Université, CNRS, EPHE, Metis, F-75005 Paris, FranceInstitut International d’Ingénierie de l’Eau et l’Environnement, Ouagadougou, Burkina FasoUniversité Ouaga I Professeur Joseph KI-ZERBO, Ouagadougou, Burkina FasoSorbonne Université, CNRS, EPHE, Metis, F-75005 Paris, FranceAgence Française de Développement, Ouagadougou, Burkina FasoWest Africa is subject to climatic variability with a long period of drought during the 1970s–1990s whose impact on groundwater remains poorly studied. This work focuses on the Kou basin in Burkina Faso, which holds a large groundwater resource resulting in exceptional springs. This resource shows signs of depletion that raise a critical question: What is the share of climate and that of withdrawals in the depletion of the resource? To answer this question, we used a hydrogeological model calibrated in steady state and in transient regime (monthly time step 1995–2014; annual time step 1961–2014). The results showed that pumping has a significant impact on the resource, especially in the vicinity of the pumping areas, and caused approximately 30% of the observed decrease in spring discharge. Drought periods and consecutive years without recharge also led to a decrease in groundwater levels. Thus, precipitation deficits and variability, combined with increasing pumping, have endangered the resource.https://comptes-rendus.academie-sciences.fr/geoscience/articles/10.5802/crgeos.207/Groundwater pumpingGroundwater modellingClimate changeSudanian regionSedimentary aquiferWest Africa |
| spellingShingle | Tirogo, Justine Jost, Anne Biaou, Angelbert Koussoubé, Youssouf Ribstein, Pierre Dakouré, Denis Impacts of climate change and pumping on groundwater resources in the Kou River basin, Burkina Faso Comptes Rendus. Géoscience Groundwater pumping Groundwater modelling Climate change Sudanian region Sedimentary aquifer West Africa |
| title | Impacts of climate change and pumping on groundwater resources in the Kou River basin, Burkina Faso |
| title_full | Impacts of climate change and pumping on groundwater resources in the Kou River basin, Burkina Faso |
| title_fullStr | Impacts of climate change and pumping on groundwater resources in the Kou River basin, Burkina Faso |
| title_full_unstemmed | Impacts of climate change and pumping on groundwater resources in the Kou River basin, Burkina Faso |
| title_short | Impacts of climate change and pumping on groundwater resources in the Kou River basin, Burkina Faso |
| title_sort | impacts of climate change and pumping on groundwater resources in the kou river basin burkina faso |
| topic | Groundwater pumping Groundwater modelling Climate change Sudanian region Sedimentary aquifer West Africa |
| url | https://comptes-rendus.academie-sciences.fr/geoscience/articles/10.5802/crgeos.207/ |
| work_keys_str_mv | AT tirogojustine impactsofclimatechangeandpumpingongroundwaterresourcesinthekouriverbasinburkinafaso AT jostanne impactsofclimatechangeandpumpingongroundwaterresourcesinthekouriverbasinburkinafaso AT biaouangelbert impactsofclimatechangeandpumpingongroundwaterresourcesinthekouriverbasinburkinafaso AT koussoubeyoussouf impactsofclimatechangeandpumpingongroundwaterresourcesinthekouriverbasinburkinafaso AT ribsteinpierre impactsofclimatechangeandpumpingongroundwaterresourcesinthekouriverbasinburkinafaso AT dakouredenis impactsofclimatechangeandpumpingongroundwaterresourcesinthekouriverbasinburkinafaso |