Aerial photo taken on July 24, 2018 shows a buckwheat farm at Xiongying Village of Bandi Township in Weining County, southwest China's Guizhou Province. (Xinhua/Yang Wenbin)

Aerial photo taken on July 24, 2018 shows a buckwheat farm at Xiongying Village of Bandi Township in Weining County, southwest China's Guizhou Province. (Xinhua/Yang Wenbin)

Tourists enjoy buckwheat flowers at Xiongying Village of Bandi Township in Weining County, southwest China's Guizhou Province, July 24, 2018. (Xinhua/Yang Wenbin)

A woman poses for photos amid buckwheat flowers at Xiongying Village of Bandi Township in Weining County, southwest China's Guizhou Province, July 24, 2018. (Xinhua/Yang Wenbin)