Photo taken on Dec. 28, 2020 shows that farmers were picking mushrooms at the farmers cooperative in Shiyuan Village, Dangchang County, Longnan City, northwest China's Gansu Province. By adopting a mode of "cooperative + por household", the county helped more than 50 households in poverty every year, with each household's income increased by over 5,000 yuan. (Chen Zhengqiang/Guangming Picture)