The Introduction of Karez Well
As one of must-visit place in Turpan.The ancient Karez Irrigation System, which is still used today, is a unique irrigation system in Turpan. It takes advantage of the slopes, draws the underground water to flow by itself to irrigate farmland. It consists of four parts: vertical wells, underground channels, ground canals, and small reservoirs. The Karez Irrigation System,which is connected by underground channels, is considered as one of the three great ancient projects in China.The other two being the Great Wall and the Grand Canal.There are nearly one thousand Karez totaling 5000 kilometers in length in Turpan.
The Structure and Feature of Karez Well
The structure of the Karez basically consists of wells,underground channels,ground canal and small reservoirs.In spring and summer,a great amount of melting snow and rainfall flow down from the Bogdaand Karcawuquntag Mountains north and west of the Turpan depression into the valleys and then seep into the Gobi Desert,taking advantage of the mountain slopes,the working people ingeniously created the Karez to draw the underground water to irrigate the farmland.The water in Karez will not evaporate in large quantities even under the scorching heat and fierce wind,hence ensuring a stable water flow and gravity irrigation.