Contribution du SIG (WEAP) dans la gestion des ressources en eau (cas de la wilaya de Khenchela, Nord-Est Algérien)
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Date
2018
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Publisher
Université Abbes Laghrour -Khenchela-
Abstract
Abstract
The management of water resources in Algeria poses a thorny problem to the
authorities. The resources available are below what is needed. Obsolete water supply
networks and inadequate storage capacity hinder the proper distribution of water to
consumers. Daily per capita provision remains low by international standards.
In the case of the wilaya of Khenchela (Eastern Algeria), which is an agricultural
wilaya, it has a low surface and underground water reserve, as well as a degraded
drinking water distribution network with losses of around 50%.
The multiple approaches combined with the optimization models of the water
management system make it possible to provide answers to this problem and to
establish a water strategy, particularly in the agricultural sector. To this end, the
WEAP (Water Evaluation and Planning System) model recommended by the FAO is
proving to be an essential alternative as a water resources forecasting tool, simulating
supply and demand. The policy of intensive mobilization of water resources will find
its physical and economic limits in the short term; to remedy this problem, it must be
combined with a demand management policy.