Decadal Climate Vibration of Qinghai Lake Periphery and Its Response to Climate Change of Qinghai Plateau

By using the normal meteorological observatory data of the Qinghai plateau from 1958 to 2005 we made the statistics about precipitation and temperature,and analyzed their change regulation based on climate diagnosis method.The results showed that the seasonal and annual average temperature on Qinghai Lake periphery all obviously rose since 1958,especially the temperature of autumn and winter,and the change in 1990's.Precipitation showed increasing trend except a decreasing trend in autumn.The decadal vibration of climate in the study area is mainly caused by the natural climate change of Qinghai plateau as well as the human activities.The climate types of Qinghai Lake periphery were completely accordant to that of Qinghai Plateau from 1960's to 1990's except that in winter of 1970's,autumn in 1980's and summer in 1990's.