Managed aquifer recharge in Africa: taking stock and looking forward

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cg.contributor.affiliationInternational Water Management Instituteen
cg.contributor.crpWater, Land and Ecosystemsen
cg.coverage.countryAlgeriaen
cg.coverage.countryEgypten
cg.coverage.countryEthiopiaen
cg.coverage.countryKenyaen
cg.coverage.countryMoroccoen
cg.coverage.countryNamibiaen
cg.coverage.countryNigeriaen
cg.coverage.countrySouth Africaen
cg.coverage.countryTunisiaen
cg.coverage.iso3166-alpha2DZen
cg.coverage.iso3166-alpha2EGen
cg.coverage.iso3166-alpha2ETen
cg.coverage.iso3166-alpha2KEen
cg.coverage.iso3166-alpha2MAen
cg.coverage.iso3166-alpha2NAen
cg.coverage.iso3166-alpha2NGen
cg.coverage.iso3166-alpha2ZAen
cg.coverage.iso3166-alpha2TNen
cg.coverage.regionAfricaen
cg.coverage.regionNorthern Africaen
cg.coverage.regionEastern Africaen
cg.coverage.regionSouthern Africaen
cg.coverage.regionWestern Africaen
cg.creator.identifierJonathan Lautze: 0000-0003-4215-5919en
cg.creator.identifierKaren Grothe Villholth: 0000-0002-7552-6715en
cg.identifier.doihttps://doi.org/10.3390/w12071844en
cg.identifier.iwmilibraryH049796en
cg.isijournalISI Journalen
cg.issn2073-4441en
cg.issue7en
cg.journalWateren
cg.reviewStatusPeer Reviewen
cg.volume12en
dc.contributor.authorEbrahim, Girma Yimeren
dc.contributor.authorLautze, Jonathan F.en
dc.contributor.authorVillholth, Karen G.en
dc.date.accessioned2020-07-21T05:17:37Zen
dc.date.available2020-07-21T05:17:37Zen
dc.identifier.urihttps://hdl.handle.net/10568/108829
dc.titleManaged aquifer recharge in Africa: taking stock and looking forwarden
dcterms.abstractClimatic variability and change result in unreliable and uncertain water availability and contribute to water insecurity in Africa, particularly in arid and semi-arid areas and where water storage infrastructure is limited. Managed aquifer recharge (MAR), which comprises purposeful recharge and storage of surface runoff and treated wastewater in aquifers, serves various purposes, of which a prominent one is to provide a means to mitigate adverse impact of climate variability. Despite clear scope for this technology in Africa, the prevalence and range of MAR experiences in Africa have not been extensively examined. The objective of this article is provide an overview of MAR progress in Africa and to inform the potential for future use of this approach in the continent. Information on MAR from 52 cases in Africa listed in the Global MAR Portal and collated from relevant literature was analyzed. Cases were classified according to 13 key characteristics including objective of the MAR project, technology applied, biophysical conditions, and technical and management challenges. Results of the review indicate that: (i) the extent of MAR practice in Africa is relatively limited, (ii) the main objective of MAR in Africa is to secure and augment water supply and balance variability in supply and demand, (iii) the surface spreading/infiltration method is the most common MAR method, (iv) surface water is the main water source for MAR, and (v) the total annual recharge volume is about 158 Mm3 /year. MAR schemes exist in both urban and rural Africa, which exemplify the advancement of MAR implementation as well as its out scaling potential. Further, MAR schemes are most commonly found in areas of high inter-annual variability in water availability. If properly planned, implemented, managed, maintained and adapted to local conditions, MAR has large potential in securing water and increasing resilience in Africa. Ultimately, realizing the full potential of MAR in Africa will require undertaking hydrogeological and hydrological studies to determine feasibility of MAR, especially in geographic regions of high inter-annual climate variability and growing water demand. This, supported by increased research to gauge success of existing MAR projects and to address challenges, would help with future siting, design and implementation of MAR in Africa.en
dcterms.accessRightsOpen Accessen
dcterms.available2020-06-27en
dcterms.bibliographicCitationEbrahim, Girma Y.; Lautze, Jonathan F.; Villholth, Karen G. 2020. Managed aquifer recharge in Africa: taking stock and looking forward. Water, 12(7):1844. (Special issue: Managed Aquifer Recharge for Water Resilience) [doi: 10.3390/w12071844]en
dcterms.extent1844. (Special issue: Managed Aquifer Recharge for Water Resilience)en
dcterms.issued2020-06-27en
dcterms.languageenen
dcterms.licenseCC-BY-4.0en
dcterms.publisherMDPIen
dcterms.subjectgroundwater rechargeen
dcterms.subjectaquifersen
dcterms.subjectgroundwater managementen
dcterms.subjectwater securityen
dcterms.subjectclimate changeen
dcterms.subjectwater availabilityen
dcterms.subjectwater qualityen
dcterms.subjectwater supplyen
dcterms.subjectwater reuseen
dcterms.subjectwastewateren
dcterms.subjectrainen
dcterms.typeJournal Articleen

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