Aerial view of Karub District in Qamdo, Tibet

Aerial photo taken on Feb. 17, 2021 shows a view of the Karub District in Qamdo, southwest China's Tibet Autonomous Region. (Xinhua/Sun Fei)

Aerial photo taken on Feb. 17, 2021 shows a view of the Karub District in Qamdo, southwest China's Tibet Autonomous Region. (Xinhua/Sun Fei)

Aerial photo taken on Feb. 17, 2021 shows a view of the Karub District in Qamdo, southwest China's Tibet Autonomous Region. (Xinhua/Sun Fei)

Aerial photo taken on Feb. 17, 2021 shows a view of Lancang River converged by Zaqu River and Ngomqu River in Qamdo, southwest China's Tibet Autonomous Region. (Xinhua/Sun Fei)

Aerial photo taken on Feb. 17, 2021 shows a view of the Karub District in Qamdo, southwest China's Tibet Autonomous Region. (Xinhua/Sun Fei)