L’IRRIGATION MODERNE DANS L’OASIS LAHMAR (BECHAR, ALGERIE) : PROBLEMATIQUE ET CONSEQUENCES
Journal Title: Larhyss Journal - Year 2016, Vol 25, Issue 25
Abstract
We discuss in this article the effects of the introduction of new irrigation techniques for over half a century in the oasis of Lahmar. Based on the missions carried out in the years 2013 and 2014 in the oasis of Lahmar, we conducted investigations on the site and surveys of the local population. Turns out anarchic multiplication of pumps and increased drilling has caused the rapid lowering of the water table and therefore the drying up of sources which are the real water tower foggaras the oasis of Lahmar. Of seguias, wells and foggaras were abandoned, leave room for the new.
Authors and Affiliations
REZZOUG C. | Département d’hydraulique, Université de Chlef, 02000 Chlef, Algérie, REMINI B. | Département des sciences de l’eau, Université de Blida, 09000, Algérie, HAMOUDI S| Département d’hydraulique, Université de Chlef, 02000 Chlef, Algérie
DEVELOPING A PROTECTION PLAN AGAINST THE RIVERINE FLOOD RISK IN URBAN AREA THE CASE OF SKIKDA (NORTH-EAST ALGERIA)
The hydrological hazard in the city of Skikda is particularly due to the combination of the physio-geographic characteristics of the basin, and the effect of the climatic circumstances, but the vulnerability to the flo...
CARACTERES PHYSICO-CHIMIQUES ET BACTERIOLOGIQUES DE L’EAU DE CONSOMMATION (PUITS) DE LA COMMUNE RURALE D’ANTANIFOTSY, REGION VAKINANKARATRA, MADAGASCAR
The access of drinking water remain one central concern in the rural area of Madagascar. In fact, almost of the family in the countryside had low outcome and have not the opportunity of safe water from the national fac...
PRODUCTION ET EXPORTATION DES SEDIMENTS EN SUSPENSION LORS DES EVENEMENTS DE CRUE. CAS DU BASSIN VERSANT DE L'OUED MOUILAH
Le processus du transport des matières solides en suspension dans les bassins versants est complexe. Il est étroitement lié à l'intensité des précipitations, à la configuration des bassins versants et aux condit...
APPROCHE NUMERIQUE AUX VOLUMES FINIS POUR LE CALCUL DE LA REPONSE DYNAMIQUE DES CHEMINEES D’EQUILIBRE
The computation unsteady flow in a pressurized hydraulic system presents many difficulties as well on the practical level as theoretical. In this work, a numerical approach based on the finite volumes method is present...
EXPERIMENTAL INVESTIGATION OF FLOW AND ENERGY DISSIPATION IN STEPPED SPILLWAYS
The experimental results presented have permitted to describe flow configurations on the stepped spillway. The same results indicate that: i. stepped spillway dissipates the flow energy better than those of smooth pro...