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بررسيهاي اجتماعي
Social studies 
Incremented population growth, urbanization expansion and prevalence of urbanism as well as changes in life style and higher expectation of communities from welfare and hygiene status in three last decades in one hand, and increasing limitation of renewable high quality water resource, on the other hand, create conditions to increase demand, to exacerbate competition among water users and to outbreak social tension and confliction; it also caused critical status for national water management in case of equitable water allocation and social conflict resolution and water use as a factor for achieving welfare, providing employment, decreasing immigration, removing poverty and deprivation and providing health and hygiene