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为研究日光温室南北向地表面热湿耦合传递的规律,以一栋日光温室为试验平台,对南北向地表面温湿度场、地表面辐射强度以及近地空气温湿度进行了连续测试。结果表明:无论是夜间的冷凝过程还是白天的蒸发过程,温室中部地表面的温湿度变化梯度最大,换热量最大;白天8:00-18:00时间段内,地表水分发生蒸发现象,土壤含水率下降,夜间18:00-次日8:00时间段内,近地表空气发生冷凝现象,土壤含水率上升。
In order to study the regularity of heat and moisture coupling between the north and south surface of solar greenhouse, a solar greenhouse was used as a test platform to continuously test the surface temperature and humidity fields, the radiation intensity on the ground surface and the near-surface air temperature and humidity. The results show that the surface temperature and humidity in the middle part of the greenhouse have the largest gradient and the largest heat exchange during the night or during the day. During the daytime 8: 00-18: 00, the surface water evaporates and the soil Moisture content decreased, night 18:00 - the next day at 8:00 time period, near surface air condensation, soil moisture increased.