蔬菜三连栋大棚内外冬季温度变化研究

Winter temperature analysis of vegetable connective plastic greenhouse.

采用HOBO PRO SERIES温度观测仪对冬季蔬菜三连栋大棚内外温度变化连续观测分析结果表明,晴天大棚南门全开,外界温度分别为10℃和15℃时棚内对应温度为7.5℃和16℃左右。棚内最低温度平均持续时间在晴天下106min,结束于6:40～8:20;在阴天下135min,结束于6:50～9:00。在晴天下回升至10℃时间平均在10:30,在阴天下平均在10:40。在晴天下午降至10℃时间平均在16:00,在阴天下平均在16:00～19:00。

The temperatures are observed with HOBO PRO SERIES instrument in plastic greenhouses in winter. The relation of temperatures between inside and outside of plastic greenhouse has been discussed on the above base. When the outside temperatures are 10℃ and 15℃ respectively,the temperatures in the greenhouse correspond to 7.5℃ and 16℃. The lowest temperature is evaluated, the ending time of lowest temperature is made statistically and the speeds of rising and dropping temperatures are recorded too. The persistent time of the lowest temperature in the greenhouse is 106 minutes at an average,ending at 6:40-8:20 under a clear weather,and is 135 minutes,ending at 6:50-9:00 under an overcast weather. The time when the temperature rises to 10℃ is at 10:30 under a clear weather, and at 10:40 under an overcast weather. The time when the temperature drops to 10℃ is at 16:00 under a clear weather,and at 16:00-19:00 under an overcast weather.