The Applicat Of Native Tree Species To Urban Garden Of Ya'an City

Any city has its rich cultural connotation, unique local landscape features,and the symbol of landmark buildings. But native tree species is the most obvious, intuitive and effective way which can reflect the unique local characteristics of. landscape. Moreover,native tree species has many advantages. such as cheap,high transplanting survival rate, fewer posts and diseases.The reasonable application to native tree species in urban landscaping. Reflects regional characteristics of the urban plant landscape, and important of ecological environment construction.There is a survey in the Yucheng District Ya'an. through field surveys, accessing to literature, consulting the local bureau of landscape and Forestry and systematic induction,We choose these as the samples of investigation.They conclude 25 main streets with trees on both sides,three residential areas with green attached configuration,two parks.Then we investigate one by one and master the species,numbers and ways of configuration about the native tree species.This paper mainly does the following research and draws the conclusion:First, through access to relevant information, literature, combining with the present research situation of native so tree species at home and abroad, put forward the functions and advantages of the native tree species. The functions and advantages provide theoretical' and practical basis. for advantages and disadvantages of the application to the native tree species in Ya'an urban landscape. Furthermore,some useful measures and important points.have been offered for Ya'an urban landscape.Second, through the survey of 25 main streets with trees, three residential areas attached green configuration and two parks with green trees,We find 29 different species.such as Machilus silver birch, sweet scented osmanthus, Cinnamomum camphora and so on.They have a good effect and are used widely in Ya'an.now. Moreover,numbers in total 28 potential trees include lomstand,dove tree, Chinese tallow tree and so on, Exotic tree species to the native tree species ratio is three to five.Finally, We summarize that most people in Yucheng District Ya'an don't have a enough acquaintance with the native tree species.There are too few native tree species for the application to landscape.Planting native tree species makes builder have no profit.The effect of landscaping is not obvious and the urban greening personality is not stronge.The native tree species has a big promotion. According to the above problems,we have made corresponding answers.