栾川日光温室冬季气温预报模式研究
2017-05-30杨建章杨阳
杨建章 杨阳
摘要利用栾川县祥王种植专业合作社冬季日光温室内外气温监测数据及相应气象资料,采用一元回归分析法建立冬季日光温室气温预测模型,并与实际值进行对比。结果表明,温室内外气温存在显著相关性,且表现为不同天气下室内外最低气温相关性较最高气温显著;利用一元回归分析法建立的气温预测模型,晴天和阴天下预报质量高,效果明显,而在多云天气条件下,预测值与实际值存在差异,但仍有一定的参考价值。
关键词日光温室;冬季气温;一元回归分析;预报模型
中图分类号S165文献标识码A文章编号0517-6611(2017)30-0169-04
AbstractUsing the internal and external temperature monitoring data and corresponding meteorological data of winter sunlight greenhouse in Luanchuan County, the temperature prediction model of winter sunlight greenhouse was established by using the single regression analysis method, and compared with the actual value.The results showed that there was a significant correlation between the temperature inside and outside the greenhouse, and the correlation between the minimum temperature of inside and outside the greenhouse was higher than that of the maximum temperature.The weather forecast model established by the single regression analysis method was high quality and obvious effect in sunny and overcast.In the cloudy weather conditions, the predicted value and the actual value were different, but there was still some reference value.
Key wordsSunlight greenhouse;Winter temperature;Single regression analysis;Prediction model
隨着国家惠农政策对农民合作社等新型农业经营主体支持力度的加强,设施农业得以迅猛发展。近年来极端天气事件明显增多,尤其是冬季寒潮天气出现频繁,低温冷(冻)害成为威胁设施农业生产和种植效益的主要气象灾害;同时在设施农业发展过程中,也存在着生产管理措施粗放、专业气象服务不够精准等方面的短板。由于设施农业对专业气象服务的依赖性越来越强,开展精细化设施农业气象预报服务已成为气象工作的一个重要部分。
栾川县地处豫西山区,海拔较高,独特的地形使得该地区气候环境异于其他地区。该地区每年冬季都会出现低温寒潮天气,不仅对设施农业造成危害,还给种植户造成严重经济损失。开展精细化、有针对性的专业气象服务,是气象工作目前亟待解决的一个难题;……
