Photo taken on May 15, 2020 shows farmlands and seabuckthorn trees at the foot of Mount Qomolangma in southwest China's Tibet Autonomous Region. Mount Qomolangma National Nature Reserve was set up in 1988. Covering an area of more than 33,800 square km, it is home to one of the world's most vulnerable ecosystems. (Xinhua/Sun Fei)
