The Change Characteristics of the Temperatures and Precipitation in Shihezi,Xinjiang in the Recent 41 years

In recent years,the global climate change became a hot issue,the change of temperature and precipitation affected the construction of the ecological environment and economic development of China directly.In this paper,the data of the average temperature,the largest depth of frozen soil and average precipitation,which gotten from Shihezi Meteorological Bureau during the period of 1961-2002 were analyzed by linear fitting method,smooth average method and scatter plot method to get their trend and correlation.The results showed that:(1) Since the late 1960s,the trend of average temperature increased,contrarily,the largest depth of frozen soil decreased.(2)The trend of average annual precipitation increased and the largest precipitation occurred in spring.(3) In spring,summer and autumn,the precipitation of Shihezi decreased while temperature increased,the result in winter was opposite.(4) According to M-K method,we knew the temperature and precipitation of Shihezi changed abruptly and got the time of abrupt change.