This study uses a variety of methods to analyse the characteristics and mutation of mean annual temperature, mean seasonal temperature from 1960 to 2009 in Shandong province. The results show that the mean annual temperature in Shandong province increases with 0. 27 ℃. per decade in recent 50 years, and an abrupt change occurs in 1997. The largest increase in temperature occurs in winter time, and spring time , and then in autumn time,the lowest is in summer time. Spring average temperature increases with 0. 35 ℃ per decade,summer average temperature increase slowly, at a rate of 0. 08 ℃ per decade, autumn average temperature increases with 0. 23 ℃ per decade,the warming trend in winter was the most remarkable,which at the rate of 0. 45 ℃ per decade. The analysis of seasonal abrupt shows that spring temperature abrupts in 2000,autumn in 2004,and winter in 1986.
air temperature changeMann - Kendall testYamamoto testGISShandong province