辽宁盘锦市兴隆会区科协主席王京平试验成功的北方庭院生态农业模式，在北方省区推广近10万户，使低污染和无公害蔬菜的大规模生产成为可能。王京平发明的生态模式，是由蔬菜温室、猪舍和沼气池组成的，是集种植、养殖及能源为一体的综合生态农业模式。温室和猪舍均为半坡式日 Wang Jingping, chairman of the Association for Science and Technology of Xinglonghui District in Panjin City of Liaoning Province, successfully tested the eco-agriculture model in the northern courtyard and promoted nearly 100,000 households in northern provinces and regions, making it possible to mass produce low-pollution and pollution-free vegetables. Wang Jingping invented the ecological model, which is made up of vegetable greenhouses, pig houses and biogas digesters. It is an integrated ecological agriculture model integrating planting, breeding and energy. Greenhouses and pig houses are all semi-slopes