Qanats could be done, but the problem is varying groundwater levels. But I'm not sure if it could be used for irrigation purposes in most of the county outside the South except for less water intensive crops.
They don't just rely on groundwater, qanats can also trap seasonal rainfall or rain that falls on mountains like the Golis and Ogo Ranges The water after falling in the mountains flows into the main well and travels to the farmland
i'd submit an image but i don't have enough posts
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