北方农业学报 ›› 2019, Vol. 47 ›› Issue (6): 84-89.doi: 10.3969/j.issn.2096-1197.2019.06.15

• 农业生态环境·农业气象 • 上一篇    下一篇

日光温室冬季气温特点及低温预报模型研究

戴明晶1,2   

  1. 1.中国气象局 旱区特色农业气象灾害监测预警与风险管理重点实验室,宁夏 银川 750002;
    2.宁夏气象防灾减灾重点实验室,宁夏 银川 750002
  • 收稿日期:2019-10-25 发布日期:2020-01-19
  • 作者简介:戴明晶(1991—),女,助理工程师,学士,主要从事气象服务与应用气象研究工作。
  • 基金资助:
    宁夏回族自治区气象局2019年度青年培养项目(CAMT-201914)

Study on the winter temperature characteristics and the low-temperature prediction model in solar greenhouse

DAI Mingjing1,2   

  1. 1.Key Laboratory of Early Warning and Early Warning and Risk Management of Agricultural Meteorological Disasters in the Arid Region of China Meteorological Administration,Yinchuan 750002,China;
    2.Ningxia Key Laboratory of Meteorological Disaster Prevention and Reduction,Yinchuan 750002,China
  • Received:2019-10-25 Published:2020-01-19

摘要: 基于2018年11月—2019年3月宁安吴忠市利通区郭家桥乡山水沟村小气候自动站整点气温、相对湿度要素观测资料和郭家桥乡山水沟村区域自动气象站常规气象观测资料,分析了日光温室内气温的变化特征,并对温室内最低气温的预报方法进行了研究。结果表明:温室内气温的日变化特征不随天气状态的变化而改变,揭苫前气温达到日最低值;温室内日最低气温主要出现在7:00—9:00,而日最高气温主要出现在11:00—14:00。温室内最低气温的线性回归方程检验表明,温室内日最低气温和相对湿度、温室外日最低气温呈现明显线性关系,且阴天不揭苫时方程的预测效果最好,非阴天不揭苫时的预测效果最不理想;方程的预报绝对误差在2.0 ℃以内占62.5%以上,精度较好。研究结果可为设施农业低温冷害气象灾害防御提供技术支持。

关键词: 日光温室, 日最低气温, 日平均气温, 预报

Abstract: Based on the hourly temperature and relative humidity data of the microclimate automatic meteorological observatory in Shanshuigou Village,Guojiaqiao Township,Wuzhong City from November 2018 to March 2019,and the conventional meteorological observation data of the regional automatic weather station,the characteristics of temperature changes in the greenhouse are analyzed and the forecast method of the minimum temperature in the greenhouse was studied.The results showed that the diurnal variation of temperature in the greenhouse did not change with the change of the weather state,and the temperature reached the diurnal minimum value before the revelation.The daily minimum temperature in the greenhouse mainly occurs from 7:00 to 9:00,while the daily maximum temperature mainly occurs from 11:00 to 14:00.There is a noticeable linear relationship between the daily minimum air temperature,the relative humidity and the daily minimum air temperature outside the greenhouse.Based on this,the linear regression equation of the daily minimum air temperature inside the greenhouse is established.The absolute error of the equation is within 2.0 ℃,accounting for more than 62.5%.The results can provide a technical support for the prevention of meteorological disasters caused by low temperatures and chilling in facility agriculture.

Key words: Solar greenhouse, Daily minimum temperature, Daily average temperature, Forecast

中图分类号: 

  • S625