Modeling and Prediction of Groundwater Level in Izadkhast Plain, Fars Province

Document Type : Research Article

Authors

• Maryam Ansari ¹
• Iraj Jabbari ²

¹ PhD in Geomorphology, Razi University, Kermanshah, Iran

² Associate Professor in Geomorphology, Razi University, Kermanshah, Iran

10.22067/geoeh.2023.81109.1334

Abstract

Given the limited underground water resources in Iran, careful calculation, proper use, regulation, and maintenance of these resources are crucial. One effective approach for managing and exploiting these resources optimally, both now and in the future, is through modeling. This study focuses on the challenges faced by groundwater in the Izadakhat Basin, employing GMS software and MODFLOW code to model and forecast water levels under both steady and unsteady conditions. Three scenarios are considered: continuation of current trends, a 20% decrease in precipitation, and a 20% increase in precipitation. The results indicate that, under current conditions, the water table is projected to drop by 2.786 meters. A 20% decrease in precipitation would increase this decline to 3.77 meters, while a 20% increase in precipitation would reduce the drop to 1.77 meters. In other words, the water level fluctuates by about 1 meter with a 20% change in precipitation. Over the three-year period studied (2015–2017), the first scenario suggests a steady decline of 2.786 meters every three years if current conditions persist. These findings highlight the importance of surface water storage in the region to replenish groundwater levels. Moreover, the analysis underscores the significant impact of human activity on both the quantity and quality of groundwater resources in the study area, emphasizing the need for improved resource management.

Keywords

• Undergroundwater level flactuations
• Groundwater level fluctuation
• Groundwater resource management
• Aquifer
• MODFLOW code
• Izadkhast plain
• Iran

Main Subjects

• Geomorphic-hydrological hazards

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