Aerial photo taken on Sept. 21, 2020 shows a view in Guyuan County of Bashang area, north China's Hebei Province. (Xinhua/Yang Shiyao)

Aerial photo taken on Sept. 21, 2020 shows a view in Guyuan County of Bashang area, north China's Hebei Province. (Xinhua/Yang Shiyao)

Aerial photo taken on Sept. 21, 2020 shows a view in Guyuan County of Bashang area, north China's Hebei Province. (Xinhua/Yang Shiyao)

Aerial photo taken on Sept. 21, 2020 shows a view in Guyuan County of Bashang area, north China's Hebei Province. (Xinhua/Yang Shiyao)

Aerial photo taken on Sept. 21, 2020 shows a view in Guyuan County of Bashang area, north China's Hebei Province. (Xinhua/Yang Shiyao)

Aerial photo taken on Sept. 21, 2020 shows a view in Guyuan County of Bashang area, north China's Hebei Province. (Xinhua/Yang Shiyao)