Farmers were taking care of the celery at an intelligent greenhouse of a modern agriculture demonstration park in Jinjiang Town, Shanggao County, Yichun City, east China's Jiangxi Province, Dec. 2, 2020. In recent years, Shanggao County has vigorously promoted the development of intelligent agriculture and ecological tourism, an important effort to optimize local agricultural industrial structure. (Zhou Liang/Guangming Picture)