Abstract
In order to convey limited underground water in deserts or arid regions, Persians have developed the qanat system for transferring water over long distances for drinking and agriculture purposes. Qanats transfer underground water to the surface from aquifers of mountainous or flat regions through one or more manmade tunnels. Water flows inside the tunnels with a gentle slope that provides gravitational flow of underground water. Water flows along the radius of an alluvial fan, which extends upslope until the water table of the region is tapped and emerges at the down slope end to the surface opening of the qanat. The demands placed upon natural ground water resources have become excessive, therefore many countries believe in the qanat system of water transfer. This study explores qanat history, development, geographical partition, rules and technical issues.
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The author gratefully acknowledges helpful comments and suggestions of Prof. Johan Tempelhoff, Prof. Kate Berry and also respected reviewers for their precious comments.
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Mostafaeipour, A. Historical background, productivity and technical issues of qanats. Water Hist 2, 61–80 (2010). https://doi.org/10.1007/s12685-010-0018-z
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DOI: https://doi.org/10.1007/s12685-010-0018-z