观赏树木的开花期,往往为人们评定观赏树种的主要标准之一。所以掌握各种树木的开花时间,对于美化城市,进行庭院绿化和造园设计等工作均具有很大的参考价值。为此,多年来我们结台树木的物候期观测工作,选择了109种主要观赏树种进行了花期调查,经初步整理如下。一、观赏树种开花期调查及方法 Ornamental tree flowering, often for people to assess ornamental tree species one of the main criteria. Therefore, to master the flowering time of various trees is of great reference value for the beautification of cities, landscaping and garden design. To this end, over the years we knot Taichung phenology observation work, selected 109 species of ornamental trees were florescence survey, the preliminary arrangement is as follows. First, ornamental species flowering period of investigation and methods