宁夏灌区日光温室内气温变化规律与最低气温预测模式

Temperature Variation Characteristic and Forecasting Equation of Minimum Temperature in Greenhouse in Irrigation Area of Ningxia

为了提高日光温室的气象服务水平和能力,利用引黄灌区的日光温室内气温和当地气象台站的常规气象观测资料,开展了温室内气温的变化特征和温室内最低气温预测方法研究。结果表明,不同天气条件下的温室内气温日变化规律存在明显差异;温室内的日最高气温时间分布较为集中,主要出现在每日的12:00—15:00,而日最低气温主要出现在每日的7:00—9:00;温室内、外的最低气温呈现明显的线性关系,据此建立了温室内最低气温的线性回归方程,历史回代检验表明方程的预报绝对误差绝大多数在3℃以内,精度较好。研究结果可为温室的气象保障服务提供技术支持。

In order to improve greenhouse meteorological services＇ level and ability, based on the temperature observation data in the solar greenhouse and meteorological data of the local meteorological stations, temperature variation characteristic and forecasting equation of minimum temperature in the greenhouse was studied in irrigation area of Ningxia. The results showed that： daily variation of temperature in the greenhouse was obvious difference under different weather conditions. The daily minimum temperature mainly occurred at 7：00-9：00, and the daily maximum temperature mainly occurred at 12：00-15：00 in the solar greenhouse. The minimum temperature in greenhouse and the outside minimum temperature was liner relationship, and forecasting equation of the daily minimum temperature in greenhouse was established. The results of history back substitution showed that two forecasting equations were good accuracy： most absolute errors were less than 3℃, and accounted for more than 80% of the total. The results could provide technical support for greenhouse meteorological services.