山东寿光日光温室在宁夏五个地区冬季的温度变化

目的]研究引进的山东寿光型日光温室在宁夏不同地区环境中的表现。方法]采用温湿度自动记录仪全天侯测定在宁夏5个地区温室内外的温度变化。结果](1)冬季温室内日最低温度出现在7:00～9:00之间,日最高温度在14:00左右,晴阴天温度有明显日变化。寿光日光温室在冬季-20℃以下的外界温度下,除红寺堡温室内出现短期的0℃以下低温外,其余温度都在0℃以上,1月夜间平均温度都在3.7～13.3℃以上;(2)结构一致的寿光型日光温室,在引黄灌区的贺兰、吴忠、中卫温度表现无明显差异;在中部干旱带的红寺堡,由于冬季大风日数较多,冷风渗透致使室内温度偏低;处在南部山区的彭阳,虽外界气温较低,但由于四面环山,风小,保温效果最好。结论]寿光型日光温室在宁夏正常年份的冬季不需人工增温,具有植物生长环境稳定,抗御灾害性天气能力强等优点,使用该设施使农业生产取得了较高的经济效益。

Temperature Variation of Shandong Shouguang Daylight Greenhouse in Winter in Five Different Regions in Ningxia

Objective] To study performance of introduced Shandong Shouguang daylight greenhouse in different regions of Ningxia.Method] The temperature variation in five regions of Ningxia was determined by temperature and moisture automatic record instrument.Result] Daily minimum temperature inside greenhouse appeared at the time between 7:00-9:00,and daily maximum temperature at 14:00 or so,the temperature had obvious diurnal variation in cloudy and sunny day.All Shouguang solar greenhouses in different regions had the temperatures above 0℃ in winter expect in Hongsipu,in which temperature had the short-term below the 0℃,with the lowest temperature outside was below-20 ℃ in Ningxia.The inside temperature at night was from 3.7 ℃ to 13.3 ℃ in January.Shouguang solar greenhouse with the consistent structure,the greenhouse in Ningxia Irrigation District including Helan,Wuzhong,Zhongwei,temperature inside had no significant difference;The greenhouse in Hongsipu which in arid area of central Ningxia,the temperature inside was the lowest,according to many gales days in winter;The greenhouse in Pengyang which in the south mountain area of Ningxia,surrounded by mountains,had the good temperature in winter although Pengyang had the lowest temperature outside.Conclusion] Shouguang-type daylight greenhouse has no demand of artificial temperature-increasing in normal winter in Ningxia with advantages of stable plant growth environment and strong ability of resisting disaster weather,which could obtain higher economic benefits in agriculture production. A