(251016) -- BAYANNUR, Oct. 16, 2025 (Xinhua) -- An aerial drone photo taken on Oct. 16, 2025 shows a water diversion hub in Linhe District of Bayannur, north China's Inner Mongolia Autonomous Region. The Hetao Irrigation Area, located in Bayannur, has been diverting water from the Yellow River for irrigate since the Qin Dynasty (221 B.C.-207 B.C.). A seasonal irrigation is underway in the area to preserve soil moisture for spring farming in the next year. (Xinhua/Ma Jinrui)