Sinkiang, Uygur Autonomous Region Of, The economy

Because of the dry climate, most of the cultivated land in Sinkiang depends entirely on irrigation. The various nationalities in the region have had rich experience in water conservancy techniques, of which the wells of the qanat system in the Turfan and Ha-mi depressions are a fine example. Since the 1950s, these have been greatly supplemented with canals and reservoirs,