关键词: 参考作物蒸发蒸腾量, 参考作物蒸发蒸腾量, 简化计算, 修正

Abstract: The objective of the investigation was to find out a formula which can express the relationship of unusual environment temperature and growing pigs, meanwhile, summarize a variety of the tradition architectural styles of pig houses all over the country. In an addition, synthesize, estimate and then make a compare with the economic benefits of the ways which can raise the temperature of pig houses in cold days. The result of comparison shows that the way which aimed at use solar energy is the best one.