城市行道树种植池自生植物区系研究——以福州市为例

A study on the flora of spontaneous vegetation in urban street tree planting pool:A case study of Fuzhou city

行道树种植池是城市绿地的组成部分,种植池中自生植物对于树池微生境景观效果以及生态效益的发挥具有重要影响.研究以福州市行道树种植池自生植物为研究对象,采用样方调查法,于夏秋两季对自生植物的物种组成进行研究.结果表明:福州市行道树种植池自生植物种类丰富,共记录维管植物99科288属353种,其中被子植物占据优势,共有83科271属334种.并且夏秋两季自生植物的物种组成具有相似性,以双子叶植物为主;从科属组成来看,菊科(Asteraceae)与禾本科(Gramineae)植物种数较多;在地理成分上,自生植物具有较为明显的热带与世界性特征;以乡土植物为主、多为直立型草本.最后对自生植物的利用价值进行探讨,以期为现代城市可持续、低成本景观的建设以及自生植物的合理利用与保护提供科学依据.

The planting pool of street trees is a part of urban green space.The spontaneous vegetation in the planting pool has an important impact on the landscape effect and ecological benefit of the microhabitat of the tree pool.In this study,the spontaneous vegetation in the roadside tree planting pool in Fuzhou was taken as the research object,and the species composition of the spontaneous vegetation was studied in summer and autumn by means of quadrate survey.The results showed that there were abundant varieties of spontaneous vegetation in the alley tree planting pools in Fuzhou city.A total of 288 genera and 353 species of vascular plants in 99 families were recorded,among which 334 species were angiosperms in 271 genera and 83 families.And summer and autumn spontaneous vegetation species composition is similar,mainly dicotyledonous plants.From the perspective of family and genus composition,there were more Gramineae and Asteraceae species.In terms of geographical components,spontaneous vegetation have more obvious tropical and global characteristics.Mainly native plants,mostly upright herbs.Finally,this article discusses the utilization value of spontaneous vegetation,in order to provide a scientific basis for the sustainable and low-cost landscape construction of modern cities and the rational use and protection of spontaneous vegetation.