预测冬季不同结构大棚内气象要素值的不同数学模型比较研究

目的]为有效调节大棚内的光照、气温和湿度提供理论依据。方法]对3种常见结构塑料大棚内外150cm的冬季光照、气温和湿度等气象要素进行对比观测、分析,建立预测不同结构大棚气象要素值的多种数学模型。结果]单栋塑料大棚的光照预测模型以多项式y=-0.0006x3＋0.0029x2＋0.7404x＋0.0799最为确切,气温预测模型以乘幂y=0.7593x1.1554最为确切,相对湿度预测模型以多项式y=0.00000003x5-0.0001x4＋0.0131x3-0.8732x2＋29.823-347.99最为确切;3连栋塑料大棚的光照预测模型以多项式y=-0.0005x2＋0.47061x-0.015最为确切,气温预测模型以指数函数y=4.6629e0.089x最为确切,相对湿度预测模型以多项式y=-0.0004x3＋0.0136x2＋0.2051x＋35.056最为确切;6连栋塑料大棚的光照预测模型以直线y=0.3996x＋0.0536,最为确切,气温预测模型以指数函数y=4.6227e0.0897x最为确切,相对湿度预测模型以多项式y=-0.00008x3＋0.089x2＋0.6459x＋21.191最为确切。结论]建立了冬季以棚外气象要素值预测不同结构大棚内气象要素值的数学模型。

Comparative Study on Different Mathematical Models What Used for Predicting Meteorological Elements within Plastic Canopy with Different Structures in Winter

Objective]The aim was to provide theory basis for effectively regulate illumination,temperature and humidity.Methods]Illumination,temperature and humidity within three common plastic canopies and 150 cm outside the plastic canopies in winter were comparatively observed and analyzed to establish multiple mathematical models what used for predicting meteorological elements within plastic canopy with different structures.Results]The light prediction model of single-span plastic canopy was y =-0.000 6x3 +0.0...