宁夏不同类型温室内温度的时空变化规律

Study on Temperature Temporal and Spatial Variation in Different Greenhouses in Ningxia

对宁夏贺兰县3类不同温室内的温度进行了试验观测,分析得到了不同类型温室内温度的时空变化规律。结果表明:3种不同类型温室的日变化规律一致,其中提高型温室保温性能最好,二代日光温室次之,塑料拱棚最弱。3种类型温室的季节变化趋势与室外气温的变化趋势一致。温室内温度的水平分布主要取决于与通风口的距离,距离通风口越近,温度越低。温室内温度的垂直分布在不盖苫的情况下,温度随着高度降低而降低,主要受光照影响。在盖苫的情况下,主要受通风口的影响,距离通风口越近,温度越低。

Based on experiment three greenhouses of different temperature in Helan County, Ningxia, temperature temporal and spatial variation in different greenhouses was observed in this paper. Results showed same diurnal variation of the three greenhouses. The improved greenhouse heat preservation performance was best, followed by the second generation solar greenhouse and plastic tunnel greenhouse. The seasonal variation trend was in accordance with outdoor temperature change.Horizontal distribution of temperature within greenhouse mainly depends on the distance from the vents, the closer distance the lower temperature. In case of no tarpaulin, the vertical distribution of temperature in greenhouse was that temperature decrease with height, mainly affected by light. In case of cover tarpaulin, mainly because of the influence of air vents, the closer from the vents the lower the temperature was.