An aerial drone photo taken on May 28, 2026 shows a view of A Rag Wetland in Damxung County of Lhasa, southwest China's Xizang Autonomous Region. (Xinhua/Tenzin Nyida)

An aerial drone photo taken on May 28, 2026 shows a herd of yaks at the A Rag Wetland in Damxung County of Lhasa, southwest China's Xizang Autonomous Region. (Xinhua/Tenzin Nyida)

An aerial drone photo taken on May 28, 2026 shows a herd of yaks at the A Rag Wetland in Damxung County of Lhasa, southwest China's Xizang Autonomous Region. (Xinhua/Jigme Dorje)

An aerial drone photo taken on May 28, 2026 shows a view of A Rag Wetland in Damxung County of Lhasa, southwest China's Xizang Autonomous Region. (Xinhua/Jigme Dorje)

An aerial drone photo taken on May 28, 2026 shows a view of A Rag Wetland in Damxung County of Lhasa, southwest China's Xizang Autonomous Region. (Xinhua/Tenzin Nyida)