Aerial photo taken on Sept. 1, 2018 shows the scenery of Yangjie Town of Xundian Hui and Yi Autonomous County in southwest China's Yunnan Province. (Xinhua/Yang Zongyou)

Aerial photo taken on Sept. 1, 2018 shows the scenery of Yangjie Town of Xundian Hui and Yi Autonomous County in southwest China's Yunnan Province. (Xinhua/Yang Zongyou)

Aerial photo taken on Sept. 1, 2018 shows the scenery of Yangjie Town of Xundian Hui and Yi Autonomous County in southwest China's Yunnan Province. (Xinhua/Yang Zongyou)

Aerial photo taken on Sept. 1, 2018 shows the scenery of Yangjie Town of Xundian Hui and Yi Autonomous County in southwest China's Yunnan Province. (Xinhua/Yang Zongyou)

Aerial photo taken on Sept. 1, 2018 shows the scenery of Yangjie Town of Xundian Hui and Yi Autonomous County in southwest China's Yunnan Province. (Xinhua/Yang Zongyou)

Aerial photo taken on Sept. 1, 2018 shows the scenery of Yangjie Town of Xundian Hui and Yi Autonomous County in southwest China's Yunnan Province. (Xinhua/Yang Zongyou)