Aerial photo taken on Nov. 19, 2019 shows the Yarkant River at the border of Shache County and Akto County, northwest China's Xinjiang Uygur Autonomous Region. The hydro dam of the Aratax water conservation project, the largest of its kind in southwest China's Xinjiang Uygur Autonomous Region due to its magnificence and difficulty in construction, started to impound water of the Yarkant River on Tuesday. The Aratax project will play a comprehensive role in flood control, irrigation and power generation. (Xinhua/Guan Qiaoqiao)