Regional Climate Change in Wujiaqu and Its Impact on Cotton Production

According to the temperature and precipitation data of the meteorological station in Wujiaqu region 102 Mission from 1956 to 2007,the climate change was analyzed by using linear trend function and t-test methods.And correlation analysis was carried on between the climate resources and cotton output.The results indicate that the average temperature and precipitation showed an increase trend in Wujiaqu region,but the increasing trend slightly smaller than it in Xinjiang.The warming trend is most obvious in autumn,less in spring and winter,least in summer.Precipitation in each season shows an increasing trend and there is no difference between the increasing trends.Cotton yield increased significantly year after year,and is significantly correlated with the accumulated temperature(≥10℃)and frost-free period.