武汉市综合性公园植物多样性研究

Study on Plant Diversity of Comprehensive Park in Wuhan

公园绿地是城市绿地的重要组成部分。为了探究公园绿地植物的多样性,选取武汉市有代表性的4个综合性公园,调查了其植物群落的重要值、物种丰富度、多样性指数和均匀度指数。结果表明:武汉市青山公园、和平公园、洪山公园和沙湖公园共有植物379种,涉及109个科258个属,包括乔木117种、灌木197种、草本53种、藤本12种,其中乡土树种232种,占物种总量的61.26%,乡土树种栽种比例较高。公园植物群落中乔木层的植物多样性最高,草本层的植物多样性最低,建议增加草本植物的种类和数量。对于青山公园灌木层、和平公园灌木层和草本层等植物均匀度指数低的区域,建议增加优势树种以外的其他树种。

Public park is an important part of urban green space.In order to explore the plant diversity in park green space,four representative comprehensive parks in Wuhan were selected to investigate the significance value,species richness,diversity index and evenness index of plant communities.The results showed that there were 379 species of plants in Qingshan Park,Heping Park,Hongshan Park and Shahu Park,involving 258 genera and 109 families.There were 117 species of trees,197 species of shrubs,53 species of herbs and 12 species of rattan,among which 232 species were native species,accounting for 61.26%of the total species.In the plant community of park,the tree layer had the highest plant diversity,while the herb layer had the lowest plant diversity.It was suggested to increase the species and number of herbs.For the areas with low plant evenness index,such as shrubby layer in Qingshan Park,shrubby layer and herb layer in Heping Park,it was suggested to increase other species other than dominant ones.