Photo taken on July 18, 2017 shows the Guomang wetland in Luqu County of Gannan Tibetan Autonomous Prefecture, northwest China's Gansu Province. (Xinhua/Chen Bin)
Photo taken on July 18, 2017 shows the Guomang wetland in Luqu County of Gannan Tibetan Autonomous Prefecture, northwest China's Gansu Province. (Xinhua/Chen Bin)