【摘要】 对陕北和关中地区日光温室温度变化和热量状况的对比观测试验结果表明，陕北地区日光温室的最高气温、平均气温和１０ｃｍ土温分别比关中高９９～１０℃、１８～２３℃和１０～１３℃，是理想的发展区域。日光温室夜间失热的主要途径为贯流放热，失热量占总热量７６％以上；其次是土壤横向传热，失热量占总热量１２５％～１３２％，换气放热失热量最少，占总热量５６％～１０７％。加强夜间草帘覆盖和挖防寒沟是保温的主要方法。更多还原

【Abstract】 By means of comparative experimentation, this paper was intented to research the variations of temperature and quantity of heat on greenhouse in Shaanbei and Guanzhong stations. It showed that the maximum of temperature, average temperature and 10cm ground temperature in Shaanbei greenhouse was greater than that of Guanzhong. It is an ideal region of developing greenhouse. The major way of lossing heat at night is through around structure which accounts for 76% of all lossing heat. The second way is crosswise lossing heat by soil which accounts for 12.5%～13.2% of all lossing heat. The final way is chink lossing heat which accounts for 5.6%～10.7% of all lossing heat. Therefore, covering grassy marshland at night and digging cold preventive ditch are major ways of heat preservation.更多还原