Aerial photo taken on April 23, 2020 shows a view of Nanxu Township in Longan County, south China's Guangxi Zhuang Autonomous Region. (Xinhua/Cao Yiming)

Aerial photo taken on April 23, 2020 shows a villager walking with livestock on a bridge in Longan County, south China's Guangxi Zhuang Autonomous Region. (Xinhua/Cao Yiming)

Aerial photo taken on April 23, 2020 shows a view of Nanxu Township in Longan County, south China's Guangxi Zhuang Autonomous Region. (Xinhua/Cao Yiming)

Aerial photo taken on April 23, 2020 shows a view of Nanxu Township in Longan County, south China's Guangxi Zhuang Autonomous Region. (Xinhua/Cao Yiming)

Aerial photo taken on April 23, 2020 shows a view of Nanxu Township in Longan County, south China's Guangxi Zhuang Autonomous Region. (Xinhua/Cao Yiming)

Aerial photo taken on April 23, 2020 shows a villager walking with livestock on a bridge in Longan County, south China's Guangxi Zhuang Autonomous Region. (Xinhua/Zhou Hua)

Aerial photo taken on April 23, 2020 shows a view of Nanxu Township in Longan County, south China's Guangxi Zhuang Autonomous Region. (Xinhua/Cao Yiming)

Aerial photo taken on April 23, 2020 shows a view of Nanxu Township in Longan County, south China's Guangxi Zhuang Autonomous Region. (Xinhua/Cao Yiming)

Aerial photo taken on April 23, 2020 shows a villager walking with livestock on a bridge in Longan County, south China's Guangxi Zhuang Autonomous Region. (Xinhua/Cao Yiming)

Aerial photo taken on April 23, 2020 shows a view of Nanxu Township in Longan County, south China's Guangxi Zhuang Autonomous Region. (Xinhua/Cao Yiming)