日光温室浅层土壤水媒蓄放热增温效果  

Experiment of temperature rising effect by heat release and storage with shallow water in solar greenhouse

作　　者：方慧[1,2] 杨其长[1,2] 梁浩[3] 王烁[1,2] 

机构地区：[1]中国农业科学院农业环境与可持续发展研究所,北京100081 [2]农业部农业环境与气候变化重点开放实验室,北京100081 [3]中国农业大学水利与土木工程学院,北京100083

出　　处：《农业工程学报》2011年第5期258-263,共6页Transactions of the Chinese Society of Agricultural Engineering

基　　金：国家自然科学基金资助项目(31071833)

摘　　要：该文以太阳能为热源,以水为蓄热介质,以温室浅层土壤为蓄热体,白天通过水的循环将热量收集并储存到温室浅层土壤中,夜间通过土壤的自然放热将热量释放到温室中,提高温室夜间温度。结果表明:此蓄热方法增加了温室的蓄热量,在盖上保温被以后,试验温室与对照温室温差开始增加,平均气温差为4.0℃。试验温室土壤深度60cm以上区域温度一直高于对照温室,0cm处夜间平均温差为3℃,30cm处夜间平均温差为3℃,60cm处夜间平均温差为5℃。因此,此方法既提高了空气温度,也提高了作物根部土壤温度。In this study,the solar energy was used as heat source,the water was used as heat storage medium and the shallow soil in greenhouse was used for heat storage.The heat was collected and stored in shallow soil through water circulation during daytime,and the greenhouse temperature increased at night due to the soil heat releasing.The results showed that this method could increase the heat storage of greenhouse.The temperature difference of the experiment greenhouse and normal greenhouse began to increase after covered the insulation.The average air temperature in experiment greenhouse is 4.0℃ higher than in normal greenhouse.The soil temperature at 0,30,60 cm in the experiment greenhouse was 3.0℃,3.0℃,5.0℃ higher than in the normal greenhouse respectively.Therefore the method can not only increase the air temperature,but also increase the temperature of soil around crops.

关 键 词：温室 土壤 温室测量 水媒蓄放热 

分 类 号：S625[农业科学—园艺学]