Investigation on Landscape Plant Resources, UrbanPublic Parks in Guigang City, Guangxi Province

【Objective】In order to provide scientific basis and practical reference for the construction of plant landscape in the construction of green space in Guigang City, the species resources of landscape plants and the current situation of green space in the city parks were investigated.【Methods】Through a field investigation on the species resources of landscape plants in five urban public parks in Guigang, and the consultation of relevant literature, the Lists of Landscape Plants in Urban Public Parks in Guigang City was compiled to conduct statistics and analysis on the species resources of landscape plants in those parks.【Result】 There are 334 species of landscape plants in urban public parks of Guigang City, which belong to 103 families and 249 genera. Eight families, including Leguminosae, Moriaceae, Palmaceae, Liliaceae, Euphorbiaceae, Araceae and Myrtaceae and other families, are the dominant families of landscape plant. The ratio of life form (arbor : bush : vine : herb） is 45.81 : 22.46 : 3.89 : 27.84, the ratio of woody plants and herbaceous plants is about 7 : 3, and the proportion of evergreen trees and deciduous trees is about 7:3. There are lots of flowering plants and foliage plants, accounting for 39.22% and 29.94%, respectively. There are 243 species of native plants, accounting for 72.75% of the total species, and the native woody plant index is 0.75.【Conclusion】There are abundant landscape plantspecies in urban public parks in Guigang. With evergreen trees as the main species, which shows a south subtropical plant landscape, and the trees remain green throughout the year. In urban public parks in Guigang, the native plants are dominated, showing distinct regional features. The plant configuration is scientific and reasonable with rich meaning of cultural themes. In view of the deficiency in the application of landscape plants in park green space, some suggestions are proposed as follows: applying lianas according to local conditions, creating three-dimensional green landscape, enriching native woody plant species, controlling the invasion of exotic plants scientifically and strengthening the application of city tree and city flower s to present the fascination of the city.