日光温室气温变化规律研究

Study on Laws of Temperature Change in Greenhouse

为了解日光温室冬春室内外的气温变化规律，合理调控日光温室气温，提高农产品产量和品质，利用廊坊永清县海泽田农业园区2015年1—5月观测的室内外试验数据，对不同天气类型下室内外气温变化规律进行分析研究。结果表明：试验期内室内外气温总体变化趋势一致，温室内外气温差异受太阳辐射和人为因素共同影响。不同天气类型下白天温室气温变化速度表现为晴天〉多云〉阴天，试验期内单日最低气温与日出时间有关，一般出现在日出前1—2h内。不同天气类型下温室内外气温相关性显著，相关性表现为阴天〉晴天〉多云天。

In order to understand the temperature change laws of greenhouse in winter and spring, to control the temperature of greenhouse and to improve the yield and quality of agricultural products, the experiment was performed indoor and outdoor in Yongqing Haizetian Agricultural Park in Langfang City from January to May, 2015. The indoor and outdoor temperature change laws under different weather conditions were analyzed. The result showed that the indoor temperature trend was consistent with that of outdoor throughout the experiment, the temperature difference between the inside and outside the greenhouse was affected by solar radiation.Under different weather conditions, the greenhouse temperature change rates in the daytime were as follow：sunny day〉cloudy day〉overcast. The minimum temperature in a single day during the experimental period was related to the sunrise time,which usually appeared in 1 ~2 hours before sunrise.There were significant correlations between the indoor temperature and the outdoor temperature in different weather types, the correlation appeared in the order of overcast〉sunny day〉cloudy day.