吐鲁番盆地节能日光温室地温变化特征及应用

Soil Temperature Change Characteristics in Energy-Saving Heliogreenhouse and Its Application in Turpan Basin

利用连续几年的节能日光温室反季节生产试验,较系统的观测分析了温室内外气温、地温等环境气候因子的变化情况,认为吐鲁番盆地冬季节能日光温室内当日最低地温与前日盖被前的基础地温存在定量关系,并通过数理统计方法建立了可表示这种关系的数学模型,据此可对温室地温合理地进行调节和控制。提出了温室最低地温与温室外最低气温的定量关系,以及在实际应用时的定量指标和应注意的问题等。还提出了使温室10cm最低地温保持在作物根系活动温度以上时,温室内最低气温的调节下限。

This study was carried out to systematically observe and analyze the change of air temperature inside and outside greenhouse, ground temperature and environmental factors. It is concluded that the lowest ground temperature is quantitatively related with the base ground temperature of the day before. Mathematical model is constructed to shnulate such relation as using statistics method. Ground temperature of the greenhouse can be reasonably adjusted according to the model. Phe quantitative relationship between the lowest ground temperature in greenhouse and the lowest air temperature out greenhouse, practical index and useful information have been put forward in this paper. And it has also been put forward the lower limitation of air temperature in greenhouse when it is planned to keep the lowest lOcm ground temperature higher than active temperature of the crop roots.