Citation: | Kazerani Parisa, Ziaei Ali Naghi, Davari Kamran. 2023. Determining safe yield and mapping water level zoning in groundwater resources of the Neishabour Plain. Journal of Groundwater Science and Engineering, 11(1): 47-54. doi: 10.26599/JGSE.2023.9280005 |
Groundwater is a crucial sources of water supply, especially in arid and semi-arid areas around the world. With uncontrolled withdrawals and limited availability of these resources, it is essential to determine the safe yield of these valuable resources. The Hill method approach was used in this study to determine the safe yield the Neishabour aquifer in Khorasan Razvi province in Iran. The results showed that the safe yield in the Neishabour aquifer is 60% lower than the current pumping amounts during the study period, indicating that further overdrafts could result in the destruction of this aquifer. This highlights the importance of using the Hill method to estimate the permitted exploitation from other aquifers, thus preventing problems caused by over-extraction and maintaining stability of global groundwater levels.
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Location of the study area in Khorasan Razavi province, Iran
Location of existing pumping wells in the aquifer and the modeling range
The Hill method and determination of safe yield using initial pumping values
Modelled water level with 10% pumping reduction
Modelled water level with 20% pumping reduction
Modelled water level with 30% pumping reduction
Modelled water level with 40% pumping reduction
Modelled water level with 50% pumping reduction
Modelled water level with 60% pumping reduction
The Hill method and determination of safe yield after changing pumping values
The zoning map of the aquifer water level in the initial pumping condition
The zoning map of aquifer water level in the appropriate pumping condition