山区≥10℃积温推算方法的讨论

ON CALCULATING METHODS OF≥10℃ CUMULATIVE TEMPERATURE IN THE MOUNTAINOUS REGION

本文探讨了几种推算山区≥10℃积温的方法,认为由我国学者所采用的直方图推算法以及计量地理学中的三元线性回归数学模型推算法,在实际应用中都存在不完善和局限性,将两者结合起来进行复合推算,是一种较理想的研究方法。

Starting from local climatology,the article approaches several kinds of calculating methods of ≥10℃cumulative temperature in the mountainous region and thinks that three-variate linear regressive method is perfect in mathematical model and can be mastered easily, but its calculating errors are larger. Histogram method used by Chinese scholars is different from three-variate linear regressive method,it has higher calculating precision,but it is limited in practice by its unperfec-tion in mathematical models and too much jobs. Complex method that combines histogram method with three-variate linear regressive method is ideal in studying≥10℃ cumulative temperatures in mountainous regions. The calculating errors of histogram method are 1 % ,but the biggest error of complex method does not surpass 3‰in Shuangyang County ,Jilin Province.