Application Research Of Indigenous Trees In The Building Of National Forest In Fuzhou

National forest city construction is an important guarantee of harmony between city,nature and people.In the national forest city construction index,both the number of native trees and the richness of urban forest species are required.On the basis of relevant literature and data,the author visits the composition of arbor forest,the area of mountains forest land,garden greening tree species in counties,production and operation units of forest tree seedlings,and the tree species in roads and parks in urban areas of Fuzhou were investigated and analyzed.On the basis of mastering the basic situation of Fuzhou,the method for testing and evaluating the application effects of local arbors in Fuzhou was explored,and the value of 76 species of native trees was comprehensively evaluated and graded using the Delphi method.At the same time,combined with the unique site conditions and ecological culture of Fuzhou,the selection of native tree species in each classified green space is planned,with a view to providing reference for Fuzhou to carry out forest city construction and follow-up management.The main conclusions are as follows:(1)The arbor forest in Fuzhou is mainly composed of evergreen broad-leaved forests,masson pine forests and Chinese fir forests.Among them,over-mature forests account for 30%of the total.In the future,new afforestation and renewal should focus on the application of native tree species.(2)The garden greening tree species in all counties are mainly native trees,but through further investigation on the forest seedling production and management units,there are few types of native tree seedlings available for use.(3)The greening trees in the urban roads and parks are mainly local green evergreen trees.There are problems with few tree species,single greening structures,and similar landscapes.There is still ample space for development of native tree species.(4)Through the evaluation and grading of the indigenous arbors in the area of mountains forest land in Fuzhou city,the local tree species and characteristic landscape tree species are proposed for allocation,multiple tree species are mixed and afforested,in order to renovate forest landscapes and improve forest quality.(5)According to the unique site conditions and ecological culture of Fuzhou,it is suggested to strengthen the construction of ecological culture infrastructure and the protection and dissemination of ecological culture,and to do the planning of local tree species in each classified green space well.According to the situation of evergreen trees in Fuzhou,the landscape tree species planning in autumn and winter was specially done.