Comportement d'une source karstique soumise à une sécheresse prolongée : la source Bittit (Maroc) |
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| Authors: | Fouad Amraoui Moumtaz Razack Lhoussaine Bouchaou |
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| Institution: | 1. Laboratoire d''hydrogéologie, faculté des sciences Ain Chock, université Hassan-II, BP 5366, Maarif, Casablanca, Maroc;2. Département d''hydrogéologie, UMR 6532, université de Poitiers, 40, av. du Recteur-Pineau, 86022 Poitiers cedex, France;3. Laboratory de géologie appliquée et de géo-environnement, faculté des sciences Ibn-Zohr, BP 28/5, 80000 Agadir, Maroc |
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| Abstract: | The behaviour of a karstic spring (Bittit spring, Middle Atlas, Morocco) subjected to a prolonged drought (>20 yr), is analysed using spring hydrographs analysis methods and correlation and spectral methods. Two series of discharges, corresponding to a normal rainfall period and a drought period, are analysed. The results show that the karstic system is inertial, with very significant storage. However, in spite of the great regulating capacity of the storage, the long drought period significantly reduced the spring discharges, due to less diversified inputs, and to the karstic system storage depletion. To cite this article: F. Amraoui et al., C. R. Geoscience 336 (2004). |
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| Keywords: | source karstique Moyen Atlas Maroc sécheresse hydrogrammes analyses corrélatoire et spectrale karstic spring Middle Atlas Morocco drought hydrographs correlation and spectral analysis |
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