本研究在北京师范大学海淀校园内开展，以北京市常见的30种木本植物为研究对象，对植物春季物候和功能性状进行分析。首先于2月下旬至4月底实行物候观测，以所得数据对比北京自然历的记载,分析长时间影响下木本植物物候的变化情况；探究物候的种间差异、不同生活型间的差异；对各树种的芽开放期、展叶始期、展叶盛期、花序或花蕾出现期、开花始期和开花盛期进行相关关系分析。其次于4月中旬测定各植株的株高、蓬径，采集当年生枝条测定株高、蓬径、地径、茎直径、茎干重、茎密度、叶厚度、叶干重、比叶面积，分析以上功能性状间的相关关系。最后分析物候与功能性状间的相关关系，从而为探讨城市绿地植物对城市环境的响应对策提供数据参考。主要结论如下：

（1）木本植物的物候在不同种、不同生活型间、同种的不同个体间均有差异，亲缘关系相近的植物有比较相似的物候。

（2）植物物候期在经过长期的气候改变与城市格局的变化后，发生明显提前。

（3）木本植物的各物候期间、各功能性状间显著相关。

（4）木本植物物候期与功能性状间显著相关。

The study was conducted on the Beijing Normal University of 30 woody plant species in Haidian District. The phenological and functional characteristics of the plants in spring were analyzed. Firstly, the phenological observation was carried out from late February to the end of April, and the data obtained were compared with the records of the Beijing Natural Calendar to analyze the changes of woody plant phenology under the influence of long time, and to explore the interspecific differences of phenology and the differences of different life forms The relationships among bud opening, leaf unfolding, leaf unfolding, inflorescence or bud emergence, flowering beginning and flowering peak of each tree species were analyzed. Secondly, the plant height and diameter of each plant were measured in the middle of April, and the plant height, diameter, ground diameter, stem diameter, stem dry weight, stem density, leaf thickness, leaf dry weight and specific leaf area were measured from the branches of the same year, the correlation among the above functional traits was analyzed. Finally, the correlation between phenology and functional traits was analyzed to provide data reference for exploring the response of Urban Green Plants to urban environment. The main conclusions are as follows:

(1) the phenology of woody plants is different among different species, different life forms and different individuals of the same species.

(2) after the long-term Climate Change and the change of city pattern, the phenological period of plants appeared earlier than before.

(3) there were significant correlations between phenological periods and functional traits of woody plants.

(4) there was significant correlation between phenological phase and functional traits in woody plants.