日光温室棚菜、养猪和沼气池分别是人们充分利用自然光能和生物能进行物质生产的成功典范， 在实践中多为单独利用。为解决沼气池在北方冬季因气温低而不能利用，弥补棚室生长冬季光照、温度和二氧化碳气体不足等问题，笔者依据日光温室棚菜、养猪和沼气池三者各自的特点和联系 Solar greenhouse vegetables, pigs and biogas digesters are successful examples of people making full use of natural light energy and bio-energy for material production. In practice, they are mostly used independently. In order to solve the problem that the biogas digesters can not be utilized due to the low temperature in winter in the north and compensate for winter light, temperature and lack of carbon dioxide gas in greenhouse growth, the author based on their respective characteristics and relations with the greenhouse vegetables, pig breeding and biogas digesters