青海高原节能日光温室气温变化规律研究

为了找出青海高原温室内气温变化规律和与外界气温关系，为温室内作物栽培管理提供精细化气象服务，根据青海海东平安县2010年6月—2011年8月日光节能温室内外气象要素的连续监测，对温室内气温在不同季节、不同天气类型下的日变化规律及其与外界气温相关性进行分析。结果表明：（1）四季温室内气温日变化均呈“单峰”型，晴天、多云天、阴天下气温都是白天高于夜间，室内高于室外；（2）不同季节、不同天气条件下温室内气温日变化明显不同，最高和最低值出现时间差异较大，温室内外温差也呈现不同的变化；（3）温室内外气温相关性都是夜间高于白天，温室内外气温呈显著正相关关系，据此建立的回归方程，对开展农用天气预报具有一定意义。

Researches About the Temperature Variation Law in the Energy-saving Heliogreenhouse in Qinghai Plateau

Based on meteorological observations in the energy-saving heliogreenhouse in Ping’an, Qinghai Province from June 2010 to August 2011, the author studied the temperature inside the greenhouse variation law under different weather conditions and the correlation between the temperature inside the greenhouse and the temperature outside the greenhouse. The results showed that: (1) the daily variation of air temperature around the year inside the greenhouse was unimodal. The temperature of air in day was higher than that at night, and the temperature of air inside the greenhouse was higher than that outside, whatever the weather condition. (2) The daily variation of the air temperature inside the greenhouse changed with different seasons and different weather conditions, for the obvious difference with the time of maximum and minimum evapotranspiration and temperature variation inside the greenhouse and outside. (3) Inside and outside the greenhouse the air temperature were positively correlated, and the correlation was stronger at night than that in day. Regression equations based on this correlation were of significance at agricultural weather forecast.