中文摘要：

利用中国气象局国家气象信息中心提供的青藏高原60个测站1961~2007年逐日气温资料,分析常用的四季划分方法在高原的适用性,指出各种四季划分方法的不足和局限,并根据四季持续时间的合理性、物候特征、海拔高度、气候（温度）分布特征等因素提出了针对不同的生产、生活目的而建立的新四季划分方法。探讨认为：（1）根据高原物候特征和气温相结合的方式得到的＂物候四季划分方法＂即＂4℃-12℃-10℃-1℃＂对高原农牧业尤为适合;（2）＂海拔季节划分方法＂对高原旅游和人们衣着尤为适合,海拔季节划分方法把高原分成二个区：海拔4000m以上四季划分方法为＂5℃-12℃-12℃-5℃＂,4000m以下四季划分方法为＂5℃-15℃-15℃-5℃;＂（3）＂生活季节划分方法＂对高原不同区域的生产生活尤为适合,生活季节划分方法将高原分为三个区：Ⅰ区四季划分方法为＂6℃-16℃-16℃-6℃＂,Ⅱ区四季划分方法为＂5℃-12℃-12℃-5℃＂,Ⅲ区四季划分方法＂7℃-7℃＂划分春冬和秋冬,不存在夏季。最后,综合以上各种方法的优缺点,初步定义＂高原普适季节划分方法＂即＂5℃-15℃-15℃-5℃＂为高原总体的四季划分方法,对高原整体的国民经济和政府活动、旅游、人们的衣着、生活生产、季节类产品的销售具有总体的指导意义。

英文摘要：

In this article,the daily temperature data of 60 stations on the Tibetan Plateau during 1961-2007,which is applicated by the National Meteorological Information Center of China Meteorological Administration,was used to analyse the applicability of the common seasonal division methods,and point the deficiency.According to the rationality of the duration of season,phonological characteristics,sea level elevation,characters of the climate（temperature） distribution and other factors propose,some new seasonal division methods for different production and living needs is given.After discussion,we can conclude： 1） The phonological seasonal division method ＂4℃-12℃-10℃-1℃＂ is particularly suitable for farming on plateau;2）The elevation seasonal division method is particularly suitable for clothing and tourism on plateau,the seasonal division method is ＂5℃-12℃-12℃-5℃＂ when sea level elevation is higher than 4000m,otherwise,the seasonal division method is ＂5℃-15℃-15℃-5℃＂;3）The life seasonal division method is particularly suitable for production and living in different region on plateau,the seasonal division method in Ⅰregion is＂6℃-16℃-16℃-6℃＂,the seasonal division method in Ⅱ region is＂5℃-12℃-12℃-5℃＂,the seasonal division method in Ⅲ region is ＂7℃-7℃＂,summer does not exist.Finally,the advantages and disadvantages of various methods were analyzed and concluded a new seasonal division method for whole plateau.The universal seasonal division method is particularly suitable for economy and government activities,tourism,living,clothing,sales of seasonal products of whole plateau.