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研究园林绿化树种在盐土地上的物候特征,不仅可以为盐土地的绿化确定最佳的造林时间,还可以为植物群落的景观配置提供科学依据。本研究以上海崇明东滩湿地公园45种园林绿化树种为对象,对其萌芽和展叶物候进行了观测。结果表明:萌芽期从3月中旬持续到4月下旬,其中22种集中在3月下旬,建议造林在4月底之前完成;展叶期从3月下旬持续到5月下旬,高峰期在4月中旬至5月上旬,可以根据树种展叶时间的早晚进行景观配置;根据45种树种萌芽和展叶物候特征的差异,划分为4种类型,同一类型内树种具有相似的物候匹配关系,因此,在进行景观配置时,具有一定的相互替代功能。最后给出了在植树造林和树种配置上的建议。
Studying the phenology characteristics of landscaping tree species in salt land can not only determine the optimal afforestation time for the afforestation of salt land, but also provide a scientific basis for the landscape configuration of the plant community. In this study, 45 kinds of landscaping tree species in Dongtan Wetland Park in Chongming, Shanghai were used to observe their germination and leaf phenology. The results showed that the germination period proceeded from mid March to the end of April, of which 22 species were concentrated in late March. The proposed afforestation was completed before the end of April. The leaf expanse was from the end of March to the end of May and the peak was in April From mid-May to early May, the landscape configuration can be carried out according to the time of leaf expanse. According to the difference of the phenological characteristics of the 45 species of sprout and leaf, the four species are classified into the same type with similar phenological matching. Therefore, In the landscape configuration, with some mutual replacement function. Finally, the suggestions on afforestation and species allocation are given.