日光温室冬季连阴天小气候特征分析及调控对策

Analysis of micro-climate characteristics of greenhouse and regulation countermeasures in continuous cloudy days

文章采用小气候自动监测设备观测厚墙体日光温室内气温、地温和相对湿度,结合室外同期气象站气温观测资料,分析冬季连续阴天条件下日光温室的小气候变化特征。结果表明,冬季连续阴天条件下,温室内气温、地温逐渐降低,室内外气温和地温差逐渐减小;温室内相对湿度呈现周期性变化,且维持在较高水平,温室内外相对湿度逐渐趋于一致。连续阴天,在生产管理上要围绕保温增温、补充光照、增强作物抗逆能力采取相应措施。

The micro-climate characteristics of greenhouse in the continuous cloudy days were analyzed,which was based on automatic weather station data in the greenhouse and meteorological data outside the greenhouse.The results were as follows, during the continuous cloudy days in winter, both the air temperature and the ground temperature in the greenhouse gradually were decreased.The temperature difference between in and outside the greenhouse was reduced.So did the ground temperature difference.The Relative humidity in the greenhouse showed periodic change.The value was high,which in and outside greenhouse gradually tended to be the same.The production managements should focus on keeping warm,increasing temperature,supplying illumination and enhancing stress resisitance.