Middle East and North Africa (MENA) region is subject to water scarcity (Ragab and Prudhomme, 2002) and more than 60% of the population live in areas of high water stress… Click to show full abstract
Middle East and North Africa (MENA) region is subject to water scarcity (Ragab and Prudhomme, 2002) and more than 60% of the population live in areas of high water stress compared to a global average of about 35%. Droogers et al. (2012) mentioned that, in present time, the average per capita water availability in MENA region is slightly above the physical water scarcity limit at about 1076 m/yr compared to the world average of about 8500 m/yr. In particular, water resources in Tunisia are identified by their scarcity, low quality, poor distribution and seasonal distribution (Ben Zaied and Bient, 2015).
               
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