Study on Plant Species Composition of Campuses and Park Green Spaces in Kunming City

Plant species composition in urban green spaces reflects the natural environment background, human management and cultural connotation of a city. The plant species of green spaces in Kunming City was studied, based on the field data collected by route survey records from 9 university campuses and 13 public parks, with a total area of 1 169.93 hm2. It was recorded a total of 143 families, 448 genera and 716 species of vascular plants, including 129 families, 419 genera and 663 species of angiosperms, of which, 649 species in the campuses and 374 species in the parks. In terms of growth form, it was showed more herb plants in the species composition, of the total species recorded, the herbs, trees, shrubs and vines respectively accorded for 46.51%, 27.79%, 22.49% and 3.21%. Proportion of trees in the parks (33.69%) was higher than that in the campuses (28.35%), it went down to the lowest (27.47%) in the new campuses. In terms of species origin, the proportion of alien plants in the total species, campus species and park species were 39.25%, 38.52% and 41.44%,respectively. Urban green spaces construction led the increase of the tropical composition and the decrease of the temperate composition. In addition to the roles of afforestation and beautification, plant species configuration in the campus green spaces, reflects the culture service for teaching and scientific research, to a certain extent.