A local villager herds sheep at a wetland near Mount Chomolhari in Yadong County of Xigaze City, southwest China's Tibet Autonomous Region, June 20, 2019. (Xinhua/Li Xin)

Photo taken on June 20, 2019 shows the scenery of Mount Chomolhari and a village in Yadong County of Xigaze City, southwest China's Tibet Autonomous Region. (Xinhua/Li Xin)

Photo taken on June 20, 2019 shows the scenery of Mount Chomolhari and wetland in Yadong County of Xigaze City, southwest China's Tibet Autonomous Region. (Xinhua/Li Xin)

Horses search for food at a wetland near Mount Chomolhari in Yadong County of Xigaze City, southwest China's Tibet Autonomous Region, June 20, 2019. (Xinhua/Li Xin)

Herds of cattle walk across a wetland near Mount Chomolhari in Yadong County of Xigaze City, southwest China's Tibet Autonomous Region, June 20, 2019. (Xinhua/Li Xin)