Winter scenery of Zhegu lake in Shannan City, Tibet

Photo taken with a mobile phone shows the winter scenery of Zhegu lake in Shannan City, southwest China's Tibet Autonomous Region, Dec. 4, 2021. (Xinhua/Shen Hongbing)

Photo taken with a mobile phone shows the winter scenery of Zhegu lake in Shannan City, southwest China's Tibet Autonomous Region, Dec. 4, 2021. (Xinhua/Shen Hongbing)

Photo taken with a mobile phone shows the winter scenery of Zhegu lake in Shannan City, southwest China's Tibet Autonomous Region, Dec. 4, 2021. (Xinhua/Shen Hongbing)

Photo taken with a mobile phone shows the winter scenery of Zhegu lake in Shannan City, southwest China's Tibet Autonomous Region, Dec. 4, 2021. (Xinhua/Shen Hongbing)

Photo taken with a mobile phone shows the winter scenery of Zhegu lake in Shannan City, southwest China's Tibet Autonomous Region, Dec. 4, 2021. (Xinhua/Shen Hongbing)

Photo taken on Dec. 4, 2021 shows Kiangs (Equus kiang) at Zhegu grassland in Shannan City, southwest China's Tibet Autonomous Region. (Xinhua/Shen Hongbing)