墙体高度对日光温室内夜间气温的影响  

Effect of wall height on air temperature of greenhouse during night

作　　者：温祥珍[1] 梁海燕[1] 李亚灵[1] 郭瑞峰[1] 

机构地区：[1]山西农业大学园艺学院,太谷030801

出　　处：《中国生态农业学报》2009年第5期980-983,共4页Chinese Journal of Eco-Agriculture

基　　金：山西省归国留学人员科研项目(2006048)资助

摘　　要：试验对墙体高度分别为1.26m、0.96m、0.66m、0.36m的4个温室模型内夜间气温进行了测试,并通过逐步减少或排除空气蓄热、土壤蓄放热几组试验,研究了墙体高度对日光温室夜间气温的影响。结果表明,墙体高度对温室夜间温度能够产生明显影响,随墙体高度增加,温室夜间温度提高,墙体高度为1.26m的温室夜间平均温度较0.36m的温室提高1.2～1.8℃;对夜间温度相对变化速率分析结果证实,温室墙体高度增加,夜间降温速度减慢;墙体高度与室内夜间温度相关分析表明,墙体面积/总表面积的比值每增加0.1,温室内夜间平均温度提高0.5℃左右。故随墙体高度增加,温室保温性改善。The temperature inside model greenhouses with the wall height of 1.26 m,0.96 m,0.66 m,0.36 m was investigated,and some measures were adopted to reduce or exclude the effects of thermal storage of soil and air,in order to study the effects of wall height on night temperature in solar greenhouse.The results show that there is a significant effect of wall height on the night temperature of the greenhouse.The average temperature during night is increased as the wall height increasing.And the relative changing rate of night temperature indicates that the higher the wall,the lower the decreasing rate of night temperature of greenhouse.The night air temperature in the greenhouse with the wall height of 1.26 m is 1.2～1.8 ℃ higher than that with the wall height of 0.36 m.In addition,the average temperature of the greenhouses during night increases about 0.5 ℃ with increasing the ratio of wall surface area to total transparent surface area by 0.1,which suggests that increasing wall height reduces the speed of temperature decreasing and improves the property of heat preservation of the greenhouse.

关 键 词：日光温室 墙体高度 夜间温度 保温性 墙体面积 

分 类 号：S625[农业科学—园艺学]