玻璃温室与塑料温室春季保温性能比较

以双屋脊玻璃温室和双脊窗圆拱型薄膜温室为研究对象,观测春季时典型晴天和典型阴天天气条件下2种温室内的气温及地温日变化。结果表明:晴天及阴天时,玻璃温室的日均气温和日均地温均比塑料温室高。晴天时玻璃温室的室内最高气温、最低气温以及日均气温分别比塑料温室高1.7、0.6、1.5℃;玻璃温室的室内最高地温、最低地温以及日均地温分别比塑料温室高1.3、0.9、1.1℃。阴天时玻璃温室的日均气温、日均地温分别比塑料温室高0.5、0.6℃。因此,在保温性能方面,玻璃温室优于塑料温室。

Performance Comparison of Heat Preservation Between Glasshouse and Plastic Greenhouse in Spring

Using venlo type greenhouse and plastic greenhouse as study objects ,the interior diurnal variations of air temperature and soil temperature were observed on the typical weather conditions of clear day and cloudy day in spring.The results showed that the mean daily air temperature and the mean daily soil temperature inside glasshouse were higher than plastic greenhouse on clear day and cloudy day.The daily maximum air temperature,the daily minimum air temperature,and the mean daily air temperature inside glasshouse were 1.7 ℃,0.6℃and 1.5℃higher than plastic greenhouse on clear day ,respectively.The daily maximum soil temperature ,the daily minimum soil temperature ,and mean daily soil temperature inside glasshouse were 1.3℃,0.9℃and 1.1℃higher than plastic greenhouse on clear day ,respectively.The mean daily air temperature and the mean daily soil temperature inside glasshouse were 0.5 ℃and 0.6℃higher than plastic greenhouse on cloudy day ,respectively.These results suggested that heat preservation performance of glasshouse was better than plastic greenhouse.