华北山区温度推算模式和应用

利用华北山区气象站观测的温度与其所在纬度、经度和高度，分山区建立宏观地面气温场方程。采用１：２０万地形图，以１０＇经、纬度为步长，判读其高度值，代入已建立好的方程中，经地形项订正，推算华北山区年、月平均温度、年较差和ΣＴ＇≥１０℃，其精度达极显著水平。计算结果使我们对华北山区热量资源有了新的认识，最后求算华北山区的主要水果最优品质种植上限高度。

THE TEMPERATURE CALCULATION MODEL FOR THE MOUNTAINOUS AREAS IN NORTH CHINA AND ITS APPLICATION

This paper makes use of the observational temperature data of the meteorological stations of the mountainous areas in North China and their respective latitude,longitude and altitude to establish a macro-earth surface temperature field equation for each mountainous area.Using the topographic map on the scale of 1:200000,and taking each 10'(longitude)×10'(latitude) as the step length,we inteapret the altitude value and place it into the established equation.After the topographic corrcction, the annual and monthly mean temperatures the annual range and the Σ t'≥10℃ of the mountainous areas in North China are calculated.The accuracy reaches a very notable level.The results make us gain a new recognition about the thennal resources of the mountainous areas in North China.Finally,the upper planting limits of the best species of the main fruit trees are calculated.