Qanat
Nathan S
Nathan S
The Point Where Three Qantas Meet - Image 2
The development of the qanat made by the Persians began around 3,000 years ago which was around 1,000 BC. Qanats were a series of underground wells that brought groundwater to the surface (Ahmadi, et al). The advancements of architecture in qanats provided cool water in the summer and warm water in the winter (Esmaeili). Qanats were needed in many ways in Persia including providing water for agricultural purposes and it provided clean drinking water for the Persians.
A single Qanat
One sustainable advancement of the qanat was that the groundwater was mostly safer because the wells were better protected from the elements and sediment and waste was uncommon to find in the wells of the qanat (Easton). Qanats provided an example for wells and irrigation systems years down the line to provide clean and sustainable water. Withdrawal of groundwater has caused lots of environmental problems, including drying of springs and water shortages in villages in south, and south eastern regions of Iran. This has caused more than 20,000 effective Qanats with very little water (Shahedi 94).
A series of Qanats
Another sustainable advancement of Qanats were that they were and are still used for refuge to many aquatic animals including shrimp, crabs and fish. These species were able to thrive due to the cleanliness of the water (Esmaeili). Another way these species were able to survive in the qanats was by eating any algae and other organisms that could and would have affected the cleanliness of the water. Not only did qanats provide refuge they also did and still do provide sanctuary to aquatic species that will continue to thrive in the future.
Image showing how the Qanats worked underground - Image 5
Qanats work by gravity which takes water from an underground source, to a lower lying area through an underground tunnel. It consisted of long, gently sloped tunnels that connect to the surface by a series of vertical access shafts. Once the water has reached the outside world it is either collected for drinking and everyday use or distributed into irrigated land for agriculture.
The Qanat: A Living History in Iran - This book shows how the Qanats play a major role in water harvesting. It also shows how many Qanats have been abandoned and replaced by other methods over the past few decades. This book is great to learn more about Qanats history and how the modern world has replaced the Qanats.
Qanat system, an ancient water management system in Iran: History, architectural design and fish diversity- This article talks about were Qanats were located and where they spread to through out semi arid regions of the middle east. It also talks about the different species of fish and aquatic species that lived in the Qanats.