Aerial photo taken on Aug. 12, 2018 shows a planting base for Chinese herbal medicine in Wuguodian Township of Neiqu County, north China's Hebei Province. Recent years, Neiqiu government has developed a mechanism linking herb planting bases, cooperatives and farmers to boost local economy. The value of Chinese herbal medicine produced by 100,000 mu (6,667 hectares) of farmland in Neiqiu County reached 2 billion yuan (292.1 million U.S. dollars). (Xinhua/Mou Yu)