Global climate change response of Baoji area

Based on the observed data of precipitation and temperature from 1951 to 2005 in Baoji city,the climate change characteristics were analyzed.The temperature of Baoji city had an increasing trend with fluctuation,temperature increasing mainly took place after 1990's.The largest rate of temperature change occurred in the minimum in of 80's.Temperatures increased in four seasons,but the most obvious warming occurred in the spring.Winter temperature change occurred in the 80's.The precipitation of Baoji city had a decreasing trend with fluctuation.The rainy increase occurred in 50's and 80's,drier period in 70's and 90's.Variability of precipitation in the maximum occurred after 2000,minimum in of 70's.The spring and summer precipitations were to reduce,the trend of winter precipitation was showing an increasing trend.Autumn rainfall varied mostly.The test with SPSS software revealed that annual precipitation and the spring,summer,autumn rainfall and temperature were negatively correlated.Winter precipitation and temperature was positively correlated.Between the two showed a significant linear correlation.The trend of climate change in Baoji city was becoming warmer and drier.