Abstract: Based on daily meteorological observations and annual spring phonological data from 1981 to 2009 of 10 national argometeorological stations in Shandong province,tendencies of climate and phenological changes and the relationship between phenophase and vaule of elements were analyzed using methods of linear and correlation analysis.The results showed that:(1)spring temperature significantly increased,and vapor in the spring tended to be higher in the last 30 years,(2) the woody plants' spring phonological records had universal to be premature.The rate of increase was between 0.13 and 1.11 days per year,(3)in Shandong province,spring phenophae of woody plants showed significant negative correlation with spring temperature,accumulated temperature,and vapor pressure in March.The accumulated active temperature prior to the spring phenophase was one of the major contributing factors,and spring temperature increase and vapor pressure increase in March were potential causes for the phenophase to move up in the last 29 years.

Key words: Spring phenophase, Spring phenophase, Woody plant, Climate change, Shandong province