玄武湖公园乔灌木植物物种组成分析

Analysis of Species Composition of Tree and Shrub in Xuanwu Lake Park

通过对玄武湖公园内乔、灌木植物的多次野外调查,分析研究区域内乔、灌植物的种类组成、数量特点和分布格局。结果表明,(1)玄武湖公园中植物种类众多,调查共记录到乔灌木植物56科99属147种,其中裸子植物6科10属13种,被子植物50科89属134种。植物物种丰富度较高,物种多样性丰富,乔木层植物物种数明显多于灌木层物种数。(2)蔷薇科在2个层次中均具有较明显的优势性,但总体来看种数在科、属内分布不均匀,大部分科内属、种贫乏,单种及单属科所占比例大。该研究结果可为玄武湖公园植物多样性保护、园区规划设计及城市绿地建设提供科学依据。

Based on multiple field investigations of trees and shrubs in Xuanwu Lake Park,this paper analyzes the species composition,quantity characteristics and distribution pattern of plants at the tree and shrub layers in the study area.The results show that:(1)There are abundant plant species in Xuanwu Lake Park.A total of 147 species of tree and shrub plants belonging to 99 genera and 56 families are recorded,including 13 species of gymnosperms belonging to 10 genera and 6 families and 134 species of angiosperms belonging to 89 genera and 50 families.The richness of plant species is high and the number of plant species in tree layer is significantly higher than that in shrub layer.(2)Rosaceae has obvious dominance in both layers,but the species numbers are not evenly distributed within families and genera.Most families are poor in genera and species,while single species and single family account for a large proportion.The results can provide scientific basis for plant diversity conservation,park planning and urban green space construction in Xuanwu Lake Park.