Abstract:  Based on the phenological observation data of woody plants in the southwest of Shandong province from 1983 to 2009 and the statistical method, the response of wood plants phenophase to the climate change in the southwest of Shandong province were analyzed. The relations between phenophase of wood plants and average temperature, sunshine and precipitation were discussed. The results showed that（1）During the recent 27 years, the annual mean temperature increases gradually, the annual precipitation increases gradually, and the cumulative sunshine duration decreases gradually.（2）Bud opening period of populus tomentosa, salix matsudana and elms are ahead of time annually. The leaf expansion period, blooming period and phenophase are ahead of time accordingly. The plants growing season is prolonged annually.（3）Among all the climate factors that affect the phenophase of plants, the temperature is the most significant. The next is the sunshine, and the precipitation is the least significant. The period of plants bud, the blooming period and leaf expansion period have remarkable negative correlation with the mean temperature from January to April. As the temperature becomes higher, the sunshine duration increases, the phenophase of populus tomentosa in spring is significantly ahead of time, and the phenophase of salix matsudana and elms tends to be ahead of time. The precipitation has the least significant effect on the phenophase.

Key words: Woody plants, Phenophase, Climate change, Response