Characteristic of Temperature Change in Winter in Recent 37 Years in Eastern Region of Qinghai Province

This paper analyzes temperature change trend in winter in recent 37 years,Analysis and grasping the trends of temperatures in winter will helps to supply to reference to climate change,agricultural production,social and economic sustainable development.Combined with the linear trend with differences significant test methods,based on the data of temperature and precipitation meteorological observation data collected from 11 meteorological sites in eastern region of Qinghai Province.The results showed that there presents cavitations phenomenon drought-affected in winter in eastern region of Qinghai Province.The average annual temperature change trend rate rises gradually,and the change trend rate is 0.521 ℃ every ten years.The average temperature reached 5.1 ℃.Temperature increases significantly in winter,the change trend rate is 0.652 ℃ every ten years.It is far higher than the increase value of recent 100 years.The precipitation change trend rate decline lead to climate warming in eastern region of Qinghai Province in winter.It produces serious effect to agriculture production,ecological environment and people's life.