Reservoir Deficit of Sabzvar’s Aquifir Approaches & Recommendations

Subject Areas : Geopolitic

سعداله velayati ¹ , ابوالقاسم A.Ahmadi ²

1 - ندارد
2 - ندارد

Received: 2015-01-13 Accepted : 2015-01-13 Published : 2006-01-21

Keywords: Reservoir, deficit, Hydrograph, Artificial Rechrge, Ground water, Aquifer,

Abstract :

Sabzevar basin aquifer is located 250 kilometers west of Mashhad in RazaviKhorasan province.Due to continuous over draw (Withdrawal more than discharge)since water year 1981 –82, this aquifer undergone imbalance, and facedfall in water level and consequently running short of reserved water for about 64MCM/ year. Analysis of hydrograph indicates that, the aquifer was in criticalconditions from 1981-82 to 1989-90 water years in a way, that its hydrographcontiunes its path linearly, which is an indication of ultra-critical condition andevacuation of the aquifer is the main water source supplying agricultural andmunicipal water for Sabzvar, a city with 240000 population. Therefore, it is necessaryto take some consideration to counterbalance its aquifer. In this regardthree remedies are recommended which are;Artifical recharge in traditional method,Artifical recharge in modern method,And, finally %15 reduction of wells discharges.With the advantages of these methods, Sabzvar aquifer can be counterbalanced by supporting64 MCM water annually.