Volume 22, Issue 2 (Summer 2018)                   jwss 2018, 22(2): 107-125 | Back to browse issues page

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Mirmohammad Sadeghi M, Ebrahimi B, Pasandi M. Groundwater Depletion and Stream-Aquifer Interaction (Case Study: The Najafabad Aquifer in Zayandehroud River Basin). jwss 2018; 22 (2) :107-125
URL: http://jstnar.iut.ac.ir/article-1-3354-en.html
2. Water Planning Office, Isfahan Regional Water Company, Isfahan, Iran. , mbeb50@yahoo.com
Abstract:   (7874 Views)
Depletion and consequently reduction in groundwater storage results in numerous harmful environmental effects such as reduction in yields of wells, land subsidence, lowering of water quality and also reduction in storage of surface water bodies having hydraulic relation with aquifers. In this research, groundwater depletion in the Najafabad subcatchment aquifer located in the GavKhouni basin, Isfahan province was evaluated. These studies indicate groundwater depletion and deterioration of the aquifer water quality during the recent years. Zayandehroud River had been effluent and it has recently converted to influent and dominantly recharges the aquifer. The groundwater depletion in this region has been due to wells overpumping and it does not comply with the uniform rainfall variations in recent years. According to the shaly aquifer bedrock, the groundwater depletion cannot be due to leakage through the bedrock. Moreover, the groundwater quality has been deteriorated in all parts of the aquifer, especially in the regional drawdown cones resulted from recently groundwater overexploitation by deep wells. The river leakage to the aquifer is predicted to be persistent and increasing according to results of the research and it is necessary to limit the groundwater extraction and change the average surface water inflow to the area to mid 1370s condition.
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Type of Study: Research | Subject: Ggeneral
Received: 2016/09/20 | Accepted: 2017/07/15 | Published: 2018/09/15

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