Change Characteristics Analysis of Meteorological Elements in Xingning from 1959 to 2008

Based on the temperature,precipitation and sunshine duration data at Xingning station from 1959 to 2008,using trend analysis method,the change trend of annual average temperature,seasonal average temperature,precipitation and sunshine duration in Xingning from 1959 to 2008 were comprehensively analyzed. The results showed that the average temperature in Xingning City from 1959 to 2008 showed an increasing tendency and the warming trend in winter was the most obvious. The trend of precipitation in Xingning City from 1959 to 2008 showed a stable trend. The precipitation in winter and summer had little change and the precipitation in spring showed an obvious increasing trend and the precipitation in autumn showed an obvious decreasing trend. The sunshine duration in Xingning City from 1959 to 2008 showed a decreasing trend and the decreasing trend was the maximum in summer and the minimum in winter.