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A qanāt (Persian: قَنَات) or kārīz (کَارِیز) is a water supply system that was developed in ancient Iran for the purpose of transporting usable water to the surface from an aquifer or a well through an underground aqueduct. Originating approximately 3,000 years ago, its function is essentially the same in systems across Asia and North Africa, but it is…
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water qanats system shafts karez iran systems irrigation also use flow persian used vertical well underground supply many tunnel surface
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Qanat | is a | gently sloping tunnel accessed by a series of well-like vertical shafts visible at ground level | 0.90 | text |
| floods | instance of | An ab anbar is an example of a traditional Persian qanat-fed reservoir for drinking water.The qanat system has the advantage of being resistant to natural disasters | 0.80 | text |
| and to deliberate destruction in war | instance of | An ab anbar is an example of a traditional Persian qanat-fed reservoir for drinking water.The qanat system has the advantage of being resistant to natural disasters | 0.80 | text |
| deep-rooted vegetation or seasonal seeps | instance of | The muqannīs follow the track of the main water courses coming from the mountains or foothills to identify evidence of subsurface water | 0.80 | text |
| the eastern ranges of the Atlas Mountains | instance of | The foggara is dug into the foothills of a fairly steep mountain range | 0.80 | text |
| how to construct | instance of | examines just the technical issues associated with the qanat and tries to answer the common questions | 0.80 | text |
| repair a qanat | instance of | examines just the technical issues associated with the qanat and tries to answer the common questions | 0.80 | text |
| how to find a groundwater supply | instance of | examines just the technical issues associated with the qanat and tries to answer the common questions | 0.80 | text |
| how to do leveling | instance of | examines just the technical issues associated with the qanat and tries to answer the common questions | 0.80 | text |
| etc | instance of | examines just the technical issues associated with the qanat and tries to answer the common questions | 0.80 | text |
| tas or pad | instance of | The twelve-hour water quota again subdivided into several sub-fractions of local measuring scales | 0.80 | text |
| Qanat | has application | The | 0.60 | section |
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