Diversity analysis on the plant communities of urban park green space in Wuhan.

In order to systematically study the diversity of plant communities in park green space,78 plant communities of 10 representative parks in Wuhan City were investigated.The total of 449 species included of 275 genera and 112 families were found in this investigation.The communities were divided into 35 dominant-species,13 life-forms and 6 vegetation-forms.The community structures and the composition of dominant species also were studied.The results showed that the shortages of the low diversity,high proportion of exotic species and simple community structures appeared in plant community of park green space in Wuhan City.It is to table a proposal that species,especially native ones,should be abundance in order to keep high level species diversity.At the same time,more simulated native communities should be utilized to construct near nature,multi-layers,bright regional vegetation characteristics landscape of urban parks.