In Kunyu City, northwest China's Xinjiang Uygur Autonomous Region, around 547 hectares of winter wheat planted on the edge of the Taklimakan Desert has entered the harvest season. Viewed from above, the circular wheat fields look like giant crop circles set against the desert. The design is supported by a smart center-pivot irrigation system, whose sprinkler arms stretch about 380 meters and rotate to water the fields. With scientific desert control, soil improvement and smart irrigation, once-barren land has been turned into productive farmland.