A tourist takes pictures amid the populus euphratica forest in Mogao Town of Dunhuang City, northwest China's Gansu Province, Oct. 10, 2020. (Photo by Zhang Xiaoliang/Xinhua)

Tourists go sightseeing amid the populus euphratica forest in Mogao Town of Dunhuang City, northwest China's Gansu Province, Oct. 10, 2020. (Photo by Zhang Xiaoliang/Xinhua)

Tourists go sightseeing amid the populus euphratica forest in Mogao Town of Dunhuang City, northwest China's Gansu Province, Oct. 10, 2020. (Photo by Zhang Xiaoliang/Xinhua)