Photo taken on March 8, 2020 shows the scenery of Jiulong Waterfalls in Luoping County of Qujing, southwest China's Yunnan Province. (Xinhua/Yang Zongyou)

Tourists enjoy the scenery of Jiulong Waterfalls in Luoping County of Qujing, southwest China's Yunnan Province, March 8, 2020. (Xinhua/Yang Zongyou)

Photo taken on March 8, 2020 shows the scenery of Jiulong Waterfalls in Luoping County of Qujing, southwest China's Yunnan Province. (Xinhua/Yang Zongyou)

Photo taken on March 8, 2020 shows the scenery of Jiulong Waterfalls in Luoping County of Qujing, southwest China's Yunnan Province. (Xinhua/Yang Zongyou)