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在野外实地调查的基础上,利用典型样地取样法,对江苏虞山森林植被进行了研究,划分了5个植被类型和10个森林群落。常熟虞山地区共有木本植物61科124属227种(变种)。对虞山木本植物区系组成进行分析表明,虞山木本植物科的成分以热带起源为主,同时也体现了该地区植物南北过渡交汇的特征。就属的分布区类型而言,温带分布类型最多(68属),占总属数的54.85%,是木本植物群落的主要成分。其次是热带分布(49属),占总属数的39.52%。表3参14
Based on the field survey, a typical sample sampling method was used to study the forest vegetation in Yushan, Jiangsu Province. Five vegetation types and 10 forest communities were divided. Changshu Yushan area total woody plants 61 families 124 genera and 227 species (varieties). The analysis of the flora composition of the woody plants in Yushan shows that the composition of the woody plants in the Yushan Mountain is dominated by tropical origin and also reflects the characteristics of the intersection of plants in the region from north to south. In terms of the types of distribution belts, the temperate distribution is the most (68 genera), accounting for 54.85% of the total genera, which is the main component of the woody plant community. Followed by tropical distribution (49 genera), accounting for 39.52% of the total number. Table 3 Reference 14