Titre | Etiages, rejets et protection des ressources en eau des bassins méditerranéens de l'Algérie orientale. / Low water flows, effluents and protection of water resources in the Mediterranean basins of eastern Algeria. | |
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Auteur | Azzedine Mebarki | |
Revue | Géocarrefour | |
Numéro | volume 75, no 4, 2000 L'interface nature-sociétés dans les hydrosystèmes fluviaux | |
Page | 399-416 | |
Résumé anglais |
In the North-East of Algeria , the 'exoreic' watersheds (coastal regions of Constantine, Rhumel and Seybouse) are characterised by major contrasts in the outflow of water into the mediterranean sea : negligible flows during periods of low water compared with substantial and sudden flows associated with the period of floods. The pronounced reduction in flow during the summer season is analysed using data from approximately 20 hydrological stations. During this period, the wadis are exposed to increased pollution from urban and industrial waste. Water resources are thus shown to be particularly vulnerable to pollution due to the incapacity of the rivers to transport the pollutants. This problem is a feature both within the drainage basins (Constantine) and along the coastal fringe (Annaba). There is, there-fore, a major problem of inadequate treatment of waste water : the capacity to treat urban effluents is limited and plant treating industrial wastes operate in an impredictable manner. As throughout northern Algeria, the protection of developed hydrosystems must necessarily associate two types of action : the cleaning of waste water and the maintenance of a minimum ecological flow on the downstream side of dams. Source : Éditeur (via Persée) |
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Article en ligne | http://www.persee.fr/web/revues/home/prescript/article/geoca_1627-4873_2000_num_75_4_2491 |