鲁北冬春季日光温室温热条件研究

EXPERIMENTAL STUDIES ON TEMPERATURE AND ENERGY INSIDE GREENHOUSE IN WINTER AND SPRING IN THE NORTH OF SHANDONG PROVINCE

应用2008年1~5月在日光温室内自动气象站取得的辐射、气温等资料及同一时期周围环境中天空状况、气温、风速资料,从温室获取辐射能量和温室能量散失两方面入手,分析了日光温室内的辐射特征,初步探讨了温室内辐射与气温、地温的相互影响,分析外界环境气温、风速对温室内散热的影响特征,对温室内温度条件进行初步预估。结果表明,温室辐射受到天空状况的影响显著,在白天太阳辐射是温室气温变化的主导因子,夜间温室散热与外界气温关系密切,温室地面土壤对温室小气候的稳定起了调节作用。

Based on the meteorological data inside the greenhouse including radiation,temperature and the sky condition,temperature,wind speed outside greenhouse from January to May in 2008,the characteristic of radiation inside greenhouse was analyzed,the correlations between radiation and temperature of air and ground inside greenhouse were discussed,the impacts of temperature,wind speed outside greenhouse on heat dissipation inside greenhouse were studied.The result showed that the impact of the sky condition on radiation inside greenhouse was visible,in the daytime the primary factor of the temperature change is solar radiation,and in the nighttime heat dissipation inside greenhouse concerns with temperature outside,the impact of wind speed on temperature inside is weak,soil can adjust microclimate in greenhouse.