View of Qomolangma National Nature Reserve in China's Tibet

Aerial photo taken on May 11, 2022 shows wetland in the Qomolangma National Nature Reserve in Zhaxizom Township in Tingri County, southwest China's Tibet Autonomous Region. (Xinhua/Jiang Fan)

Aerial photo taken on May 11, 2022 shows wetland in the Qomolangma National Nature Reserve in Zhaxizom Township in Tingri County, southwest China's Tibet Autonomous Region. (Xinhua/Jiang Fan)

Aerial photo taken on May 11, 2022 shows wetland in the Qomolangma National Nature Reserve in Zhaxizom Township in Tingri County, southwest China's Tibet Autonomous Region. (Xinhua/Liu Ying)

Aerial photo taken on May 11, 2022 shows wetland in the Qomolangma National Nature Reserve in Zhaxizom Township in Tingri County, southwest China's Tibet Autonomous Region. (Xinhua/Sun Fei)

Photo taken on May 10, 2022 shows trees in the Qomolangma National Nature Reserve in Zhaxizom Township in Tingri County, southwest China's Tibet Autonomous Region. (Xinhua/Sun Fei)

Photo taken on May 10, 2022 shows trees in the Qomolangma National Nature Reserve in Zhaxizom Township in Tingri County, southwest China's Tibet Autonomous Region. (Xinhua/Sun Fei)