Change Characteristics of Meteorological Elements in the Last 51 Years of Gulang County

Based on the temperature,precipitation and sunshine duration data at Gulang station from 1959 to 2009,using trend analysis method,the change trend of annual average temperature,seasonal average temperature,precipitation and sunshine duration were comprehensively analyzed.The results showed that the average temperature in the last 51 years of Gulang County showed an increasing tendency and the warming trend in winter was obvious.The trend of precipitation in the last 51 years showed a stable trend.The precipitation in spring,summer and winter had an increasing tendency,the precipitation in autumn showed an obvious decreasing trend.The sunshine duration showed an increasing trend,the precipitation in spring and autumn showed an increasing trend,with a decreasing trend in summer and winter.