齐齐哈尔市绿化树种的春季物候特征与物候相分类

Spring Phenological Characteristics and Phenophase Classification of Landscape Greening Tree Species in Qiqihar

以齐齐哈尔市绿地分布的53种木本植物为研究对象,在对植物萌芽展叶物候与物候相进行基础调查的基础上,通过萌芽与展叶参数的相关性分析及物候相的聚类分析,揭示齐齐哈尔市园林绿化树种春季萌芽展叶物候特征与物候相规律。结果表明:萌芽期从3月下旬一直持续到5月上旬,高峰期集中在4月上中旬;展叶始期从4月中旬持续到5月中旬结束。萌芽期与展叶始期、展叶盛期、展叶末期存在极显著的正相关性。聚类簇群分析共划分为4种类型,处于相同物候相类型的植物萌芽与展叶持续时间物候呈现相对的同步性。齐齐哈尔园林绿化树种的春季物候与物候相特征的研究,可为北方寒地春季园林绿地空间植物景观的营造提供科学依据,也为构建多样性的植物群落提供参考。

Based on field investigations on budding and leaf expansion phenology characteristics and phenophase of 53 of woody species distributed in the green space of Qiqihar,in combination with the correlation analysis between budding time and stages of the leaf expansion and the cluster analysis of phenophase,we revealed the patterns of spring budding and leaf expansion phenological characteristics and phenophase of landscape tree species in Qiqihar.The results showed that the budding period lasted from late March to early May,and the peak period was concentrated in mid-April;the beginning of the leaf expansion lasted from mid-April to mid-May.There was a very significant positive correlation between budding time and different stages of leaf expansion:beginning,peak,and final stage of leaf expansion.In the cluster analysis,all tested tree species were divided into four types of phenological phases,and within the same phenological phase,plants showed relative synchronization in their phenology of budding and leaf expansion.The spring phenological characteristics of landscape tree species in Qiqihar would provide a scientific basis for the construction of spring garden landscape in the cold regions of northern China,and also provide a reference for building a plant community with higher diversity.