Photo taken on Jan. 24, 2021 shows staff pruning branches and leaves at the greenhouse of the Intelligent Agriculture Industrial Park in Dong'an County, Yongzhou City, central China's Hunan Province. In recent years, Dong'an County has established 15 intelligent drop irrigation agricultural bases by adopting a mode of "company + cooperative + base + farmer", in upgrading of the local agricultural industry. (Yan Jie/Guangming Picture)