天津市津南区作为天津国际化大都市的环城区之一,近年来经济一直保持快速增长势头,然而经济的增长也带来了诸多的负面效应,能源减少、环境污染、土壤盐渍化、水源短缺等趋势日益明显,已严重制约了农业的可持续发展。为此,在农村大力推广“四位一体”沼气能源开发利用,势在必行 Tianjin Jinnan District, as one of the ring metropolitan areas in Tianjin’s cosmopolitan city, has enjoyed rapid economic growth in recent years. However, its economic growth has brought about many negative effects such as energy loss, environmental pollution, soil salinization, The trend of water shortage is increasingly obvious and has seriously hampered the sustainable development of agriculture. To this end, in rural areas to promote “four in one” biogas energy development and utilization, imperative