1- shahid chamran university , spahlevanizade@gmail.com
2- shahid chamran university
3- water and power authority
2- shahid chamran university
3- water and power authority
Abstract: (35 Views)
Groundwater is one of the key sources of water supply for various uses in Khuzestan Province. In recent years, especially in the agricultural areas of the Gotvand Plain, it has undergone significant quantitative and qualitative changes. The aim of this study is to predict the effectiveness of the restoration and balancing plan projects (has started since 2008) on the groundwater‑level balance of the Gotvand aquifer using the MODFLOW numerical model. In this research, changes in the water‑table level and the aquifer water budget were examined under different management scenarios through the years 2021 to 2022, including deactivating and sealing illegal wells, resolving the status of “Form one” wells, and revising and adjusting abstraction permits for agricultural well. The simulation results showed that eliminating illegal wells has the greatest impact on improving the aquifer condition. In this scenario, the water‑table level increases by approximately 3 meters in the southern parts of the aquifer and about 0.3 meters in the northern parts, while the aquifer storage increases by around 8 million cubic meters. In contrast, resolving the status of “Form one” wells results in only about a 0.9‑million‑cubic‑meter increase in storage and does not produce a noticeable change in the water‑table level. Overall, the findings indicate that sealing illegal wells can be considered the most effective management action for improving the quantitative status of the Gotvand aquifer.
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