Study on Diurnal Variation Characteristics of Light Intensity，Temperature and Humidity in Solar Greenhouse Under Different Weather Conditions(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Study on Diurnal Variation Characteristics of Light Intensity，Temperature and Humidity in Solar Greenhouse Under Different Weather Conditions

Author(s):: QI De-fu；MA Qi; Agriculture and Animal Husbandry College，Qinghai University,Xining，Qinghai 810016

Keywords:: solar greenhouse; illumination intensity; temperature; relative humidity; diurnal variation

Abstract:: Test point that inside or outside the solar greenhouse in the northern suburb of Xining city as research objects,the light intensity，temperature and humidity were studied under the different climatic conditions by method of synchronous parallel observation and contrastive analysis.The results indicated that the light intensity and the daily temperature changes were the most different when it was sunny but the change differed least when it was cloudy，and the change was intermediate when snow days.The average temperature inside or outside the greenhouse was the highest when it was cloudy and then snow and sunny days.The temperature increasement was the most obvious when snow days inside the greenhouse；the ranges of daily relative humidity inside or outside the greenhouse were the largest when sunny days，then cloudy days and snow days in turn.

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Last Update: 2014-08-16