Aerial photo taken on April 23, 2019 shows villagers spraying herbicide in a sapling planting base in Guanting Township of Feixi County, east China's Anhui Province. In recent years, local authority has been promoting sapling production industry as an important way to promote environment and increase villagers' income. So far, the area of sapling planting has reached over 300,000 mu (20,000 hectares). (Xinhua/Zhang Duan)