Climate Changes in Dekou County in Recent 52 Years

According to the data of temperature and precipitation in Dekou oasis in recent 52 years,the climate changes were analyzed.The results showed that the temperature increased decadally.But it was decreased from 1950s to 1970s and increased since 1980s.The seasonal and annual changes of temperature within several years showed a obvious tendency of increase,and the increase rate was the biggest in winter,followed by the whole year,autumn,spring,and the smallest was in summer.The precipitation was different in decades,and more in 1960s and 1990s,less in the 1970s.The variation of annal precipitation was not obvious.Abundant precipitation and lack precipitation proportion was 36.5% and 27.0% respectively.The rate of precipitation within several years was the biggest in summer,followed by autumn,and the smallest was in winter.Precipitation focused in summer mostly.The fluctuation of precipitation in summer was basically coincided with annual precipitation.