Karez Well

Karez Well is an underground water conservancy project created during the long historical development of the working people in arid areas. The Karez Well led out groundwater and turned the desert into an oasis, which was called a "well canal" in ancient times. The main working principle of the Karez Well is that people use the natural slope of the mountain to extract a large amount of rainwater, glacier and snow melt water that seeps into the ground during spring and summer seasons for irrigation, in order to meet the production and domestic water demand in desert areas. Karez wells in different regions have their own regional characteristics in terms of specific structures, but generally speaking, a complete Karez well system consists of four main components: vertical shafts, underground channels (underground channels), open channels (surface channels), and staggered reservoirs (small reservoirs). Under this principle, the flow rate of the Karez well is stable and can ensure self flowing irrigation of the well water#