The results of the Clustering Analysis divide the forest samples into 4 groups such as Betula forest, broadleaf forest, Picea forest and Quercus forest, showing close relationships between the pollen assemblages and forest communities.

• 对花粉分析结果进行聚类分析发现,除有个别样外,森林群落的花粉组合和群落植被有很好的对应关系,可根据聚类分析的结果将森林群落划分为桦木林、阔叶树种为主的针阔混交林、云杉林、以栎为主的混交林4组。