安徽农业科学2011，Vol.39Issue(11)：6471-6473,6482,4.
日光温室土壤温度变化特征和预报模型研究
Analysis of Variation Characters and Prediction Model of Soil Temperature in Solar Greenhouse
摘要
Abstract
[ Objective] The aim was to study the soil temperature changes and its forecast model in greenhouse by solar heat. [ Method] Annual and daily variation characters of soil temperature were analyzed in this paper by using the observation data of air temperature out of solar greenhouse and different layers soil temperature in it. The soil temperature (daily maximum, daily minimum and daily mean) forecasting models were also studied. Simulation and test were conducted to the forecast model of soil temperature in the greenhouse. [ Result ] The annual changes and daily changes of soil temperature of each layer in the greenhouse were in single peak curve. The lower layer temperature changes were smaller than the upper layer. The soil temperature of each layer within the greenhouse was closely related to the relevance of same type temperature outside the greenhouse of the day. Taking the daily average temperature, daily maximum tempe rature and daily lowest temperature of the day and the day before as forecast factors, soil temperature forecast model of different layer of same type within greenhouse was constructed. The simulation outcome of daily average temperature of each layer within the greenhouse was better than the simulation outcome of highest temperature of corresponding layer, worse than the simulation of lowest temperature of corresponding layer. The highest temperature of lower soil and daily temperature of soil were better than the upper layer. The simulated soil temperature was much more close to the observation when the observation was during 15℃ to 30℃. In other interval, it was lower than the observation. [ Conclusion] The study offered theoretical reference for the growth environment of sunlight greenhouse plantation.关键词
日光温室/土壤温度/变化特征/预报模型Key words
Greenhouse by solar heat/ Soil temperature/ Changes characters/ Prediction model分类
天文与地球科学引用本文复制引用
贾红,徐为根,彭明艳,孙磊..日光温室土壤温度变化特征和预报模型研究[J].安徽农业科学,2011,39(11):6471-6473,6482,4.基金项目
江苏省气象科研开放基金项目(200905). （200905）
