Use of Multidisciplinary Approaches for Groundwater Recharge Mechanism Characterization in Basement Aquifers: Case of Sanon Experimental Catchment in Burkina Faso

In Burkina Faso, the basement aquifers represent a major asset in terms of quantity and quality, for both drinking and irrigation purposes for rural populations. They provide water resources that can guarantee the long-term needs of the populations, provided that a sustainable management policy for...

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Autores principales:	Moussa Bruno Kafando, Mahamadou Koïta, Mathieu Le Coz, Ousmane Roland Yonaba, Tazen Fowe, Cheick Oumar Zouré, Moussa Diagne Faye, Babacar Leye
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	recharge mechanism aquifer piezometric level electrical conductivity major ions Sanon watershed Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500
Acceso en línea:	https://doaj.org/article/8b8cd297f6b045e8bd9d15e59bd5d51e
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spelling	oai:doaj.org-article:8b8cd297f6b045e8bd9d15e59bd5d51e2021-11-25T19:15:37ZUse of Multidisciplinary Approaches for Groundwater Recharge Mechanism Characterization in Basement Aquifers: Case of Sanon Experimental Catchment in Burkina Faso10.3390/w132232162073-4441https://doaj.org/article/8b8cd297f6b045e8bd9d15e59bd5d51e2021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4441/13/22/3216https://doaj.org/toc/2073-4441In Burkina Faso, the basement aquifers represent a major asset in terms of quantity and quality, for both drinking and irrigation purposes for rural populations. They provide water resources that can guarantee the long-term needs of the populations, provided that a sustainable management policy for these resources is adopted. Yet, any groundwater resource management policy is necessarily linked to a better knowledge of aquifer recharge mechanisms, which is yet to be fully assessed in the Sahelian basement area. The objective of this study was to characterize the recharge mechanism within the experimental site of Sanon, located in the basement zone in Burkina Faso, using a coupling of hydrodynamic and chemical approaches. The hydrodynamic approach consisted of monitoring the spatial and temporal distribution of the piezometric levels of the aquifers along a north–south and east–west transect and determining soil infiltration capacity. The hydrochemical characterization of the aquifers was carried out through an analysis of groundwater samples from the concerned aquifers and daily tracing of the electrical conductivity of the aquifer water. The cross-analysis from the results of the implemented approaches shows a direct recharge mechanism through rainwater infiltration in the central valley, an indirect recharge mechanism in the lowlands, and a recharge mechanism by lateral transfers in the peripheral aquifers of the Sanon experimental catchment. The existence of a piezometric dome reveals in the central valley a zone of preferential recharge and water movement. The water of the central valley is the least mineralized with electrical conductivities below 100 µS/cm. This mineralization follows the direction of the water flow.Moussa Bruno KafandoMahamadou KoïtaMathieu Le CozOusmane Roland YonabaTazen FoweCheick Oumar ZouréMoussa Diagne FayeBabacar LeyeMDPI AGarticlerecharge mechanismaquiferpiezometric levelelectrical conductivitymajor ionsSanon watershedHydraulic engineeringTC1-978Water supply for domestic and industrial purposesTD201-500ENWater, Vol 13, Iss 3216, p 3216 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	recharge mechanism aquifer piezometric level electrical conductivity major ions Sanon watershed Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500
spellingShingle	recharge mechanism aquifer piezometric level electrical conductivity major ions Sanon watershed Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 Moussa Bruno Kafando Mahamadou Koïta Mathieu Le Coz Ousmane Roland Yonaba Tazen Fowe Cheick Oumar Zouré Moussa Diagne Faye Babacar Leye Use of Multidisciplinary Approaches for Groundwater Recharge Mechanism Characterization in Basement Aquifers: Case of Sanon Experimental Catchment in Burkina Faso
description	In Burkina Faso, the basement aquifers represent a major asset in terms of quantity and quality, for both drinking and irrigation purposes for rural populations. They provide water resources that can guarantee the long-term needs of the populations, provided that a sustainable management policy for these resources is adopted. Yet, any groundwater resource management policy is necessarily linked to a better knowledge of aquifer recharge mechanisms, which is yet to be fully assessed in the Sahelian basement area. The objective of this study was to characterize the recharge mechanism within the experimental site of Sanon, located in the basement zone in Burkina Faso, using a coupling of hydrodynamic and chemical approaches. The hydrodynamic approach consisted of monitoring the spatial and temporal distribution of the piezometric levels of the aquifers along a north–south and east–west transect and determining soil infiltration capacity. The hydrochemical characterization of the aquifers was carried out through an analysis of groundwater samples from the concerned aquifers and daily tracing of the electrical conductivity of the aquifer water. The cross-analysis from the results of the implemented approaches shows a direct recharge mechanism through rainwater infiltration in the central valley, an indirect recharge mechanism in the lowlands, and a recharge mechanism by lateral transfers in the peripheral aquifers of the Sanon experimental catchment. The existence of a piezometric dome reveals in the central valley a zone of preferential recharge and water movement. The water of the central valley is the least mineralized with electrical conductivities below 100 µS/cm. This mineralization follows the direction of the water flow.
format	article
author	Moussa Bruno Kafando Mahamadou Koïta Mathieu Le Coz Ousmane Roland Yonaba Tazen Fowe Cheick Oumar Zouré Moussa Diagne Faye Babacar Leye
author_facet	Moussa Bruno Kafando Mahamadou Koïta Mathieu Le Coz Ousmane Roland Yonaba Tazen Fowe Cheick Oumar Zouré Moussa Diagne Faye Babacar Leye
author_sort	Moussa Bruno Kafando
title	Use of Multidisciplinary Approaches for Groundwater Recharge Mechanism Characterization in Basement Aquifers: Case of Sanon Experimental Catchment in Burkina Faso
title_short	Use of Multidisciplinary Approaches for Groundwater Recharge Mechanism Characterization in Basement Aquifers: Case of Sanon Experimental Catchment in Burkina Faso
title_full	Use of Multidisciplinary Approaches for Groundwater Recharge Mechanism Characterization in Basement Aquifers: Case of Sanon Experimental Catchment in Burkina Faso
title_fullStr	Use of Multidisciplinary Approaches for Groundwater Recharge Mechanism Characterization in Basement Aquifers: Case of Sanon Experimental Catchment in Burkina Faso
title_full_unstemmed	Use of Multidisciplinary Approaches for Groundwater Recharge Mechanism Characterization in Basement Aquifers: Case of Sanon Experimental Catchment in Burkina Faso
title_sort	use of multidisciplinary approaches for groundwater recharge mechanism characterization in basement aquifers: case of sanon experimental catchment in burkina faso
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/8b8cd297f6b045e8bd9d15e59bd5d51e
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Use of Multidisciplinary Approaches for Groundwater Recharge Mechanism Characterization in Basement Aquifers: Case of Sanon Experimental Catchment in Burkina Faso

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