Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2014, Vol. 30 ›› Issue (11): 121-126.doi: 10.11924/j.issn.1000-6850.2013-1286

Special Issue: 农业气象

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

  

  • Received:2013-05-06 Revised:2013-05-22 Online:2014-04-15 Published:2014-04-15

Abstract: 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.