Environmental Testing and Evaluation on Sunlight Greenhouse of Builted-in Thermal Insulation in Ningxia Non-cultivated Desert Land(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Environmental Testing and Evaluation on Sunlight Greenhouse of Builted-in Thermal Insulation in Ningxia Non-cultivated Desert Land

Author(s):: GAO Yanming1; WEI Xin1; LI Jidong2; LI Jianshe1; (1.School of Agriculture，Ningxia University，Yinchuan,Ningxia 750021；2.Xinyangguang Centre of Agricultural Science and Technology Co.Ltd.，Zhongwei,Ningxia 755000)

Keywords:: sunlight greenhouse; environment test; non-cultivated land; builted-in thermal insulation

Abstract:: In order to explore the appropriate structure of sunlight greenhouse in Ningxia non-cultivated desert land，innovated the structure of existing greenhouse，which was a structure of builted-in thermal insulation in double arch and then analysed the index difference which contained air temperature，air humidity，dew point temperature，10 cm soil temperature and light intensity between the optimized greenhouse and the control greenhouse，to get the structure advantages of the optimized greenhouse.The results showed that the optimized greenhouse could effectively improve the air temperature of 2.48 ℃，reduce the relative humidity of 7.52%，and improve dew point temperature of 1.96 ℃ and the soil temperature of 2.03 ℃.The average transmittance of the optimized greenhouse was 56.70%，which was 13.55% lower than the ordinary greenhouse.The optimized greenhouse could effectively improve the indoor air temperature and soil temperature，effective keep the dew point temperature above 0 ℃，which could avoid the crops of occurrence frost damage，to realize crop production in winter of non cultivated land in the desert.

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Last Update: 2017-02-08