Climate dynamic in Maqu County from 1981 to 2010

The temperature,precipitation and sunshine duration in Maqu County from 1981 to 2010were analyzed.The results showed that,the averaged annual temperature was 1.7 ℃ and the annually change was increased year by year,the annual temperature from 1998 to 1999were higher than that of the others,the monthly temperature within a year was normal distribution.In the past 30 years,the annual precipitation was declining and the climate was trending to drought.The highest temperature and precipitation were all distributed in July.The averaged sunshine duration was 2594 hours and increased annually with no significant difference.The annual precipitation and sunshine duration were negatively correlated,but the monthly temperature was positively correlated with the precipitation.