Virtual water flows and water value in Tunisia: The case of wheat and olive

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cg.authorship.typesCGIAR and developing country instituteen
cg.contributor.affiliationUniversity of Sousseen
cg.contributor.affiliationHigher Institute of Agronomic Sciences of Chott Mariem, Tunisiaen
cg.contributor.affiliationNational Research Institute for Rural Engineering, Water and Forestry, Tunisiaen
cg.contributor.affiliationUniversité de Carthageen
cg.contributor.affiliationInternational Livestock Research Instituteen
cg.contributor.donorInternational Development Research Centreen
cg.coverage.countryTunisia
cg.coverage.iso3166-alpha2TN
cg.coverage.regionAfrica
cg.coverage.regionNorthern Africa
cg.creator.identifierNadhem Mtimet: 0000-0003-3125-2828
cg.howPublishedFormally Publisheden
cg.identifier.doihttps://doi.org/10.1007/s12517-019-4589-4en
cg.isijournalISI Journalen
cg.issn1866-7538en
cg.issue14en
cg.journalArabian Journal of Geosciencesen
cg.reviewStatusPeer Reviewen
cg.subject.ilriAGRICULTUREen
cg.subject.ilriCROPSen
cg.subject.ilriDRYLANDSen
cg.subject.ilriFOOD SECURITYen
cg.subject.ilriLIVELIHOODSen
cg.subject.ilriPOLICYen
cg.subject.ilriRESEARCHen
cg.subject.ilriWATERen
cg.volume12en
dc.contributor.authorSouissi, Asmaen
dc.contributor.authorChebil, Alien
dc.contributor.authorMtimet, Nadhemen
dc.contributor.authorThabet, Chokrien
dc.date.accessioned2019-11-06T15:04:48Zen
dc.date.available2019-11-06T15:04:48Zen
dc.identifier.urihttps://hdl.handle.net/10568/105659
dc.titleVirtual water flows and water value in Tunisia: The case of wheat and oliveen
dcterms.abstractVirtual water (VW) refers to freshwater that may be imported or exported via goods that are traded on international markets. VW trade could be considered as a potential solution for water scarcity in countries facing risks of water shortage. This paper aims to assess virtual water content and economic indicators of water use in wheat and olive at various bioclimatic stages in Tunisia. Data was collected from a sample of 113 wheat producers and 123 olive producers, through a survey including technical and economic questions. Olive is chosen as it is the raw material for olive oil, the most strategic exported agricultural product, while wheat is the main imported agricultural product. A water footprint network methodology is used to estimate water productivity and VW flows. Results indicate that by importing wheat, Tunisia is saving up to 1.39 Billion cubic metres (km3) of water. Olive oil exports correspond to 2.44 km3 of exported water. From an economic perspective, the highest irrigation water value is estimated around 1 Tunisian Dinar (TND)/m3 for olive trees in the lower semi-arid regions where it is only around 0.29 TND/m3 for wheat. At the national level, for rain-fed agriculture, olives have higher economic water productivity. Irrigation water value is estimated at 0.51 TND/m3 for olives and 0.40 TND/m3 for wheat. According to our findings, wheat production should be encouraged in the humid and sub-humid regions while olive production should be encouraged in arid and semi-arid areas, in order to generate higher water value in these regions and increase exports revenues of foreign currency.en
dcterms.accessRightsLimited Access
dcterms.audienceScientistsen
dcterms.available2019-07-05
dcterms.bibliographicCitationSouissi, A., Chebil, A., Mtimet, N. and Thabet, C. 2019. Virtual water flows and water value in Tunisia: The case of wheat and olive. Arabian Journal of Geosciences 12:421.en
dcterms.issued2019-07
dcterms.languageen
dcterms.licenseCopyrighted; all rights reserved
dcterms.publisherSpringeren
dcterms.subjectwateren
dcterms.subjectwheaten
dcterms.typeJournal Article

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