Application Investigation And Planning Of Tree Species In The Huang Huai Plain And Hilly Area (A Area) In The North Of Jiangsu Province

Urban landscape tree species planning is one of the important basic work of urban construction,is the key factor to determine the cause of urban landscaping.Doing a good job in urban greening can effectively improve the urban ecological environment,improve the living environment and provide a good natural space for urban life.At present,with the continuous development of urban construction,urban landscaping has made considerable progress.At the same time,the research on the urban landscape tree species planning in Jiangsu province has been studied.But careful study can be found that a considerable number of literatures did not refine the landscape tree species planning,lack of adaptability to the ecological environment,biodiversity and other aspects of tree species planning.Therefore,this study focused on the ecological adaptability,biodiversity and other aspects of the tree species planning content,the important issues of urban landscaping to study and discuss and give suggestions.This study is based on the theories of vegetation community,landscape ecology,habitat factor analysis,urban ecology and landscape architecture,based on the research methods of vegetation community,landscape trees and other disciplines.The current situation of urban landscape tree species,vegetation community types,landscape status and other aspects of the field research in the Huang Huai plain and hilly area of Northern Jiangsu Province,collect and analyze data,on this basis,combined with literature data,Reflect the natural landscape features of the region to the maximum extent,with urban landscaping and green space system planning trend,draw a more scientific and reasonable in Huang Huai plain of Northern Jiangsu,hilly towns urban landscape tree species planning content,provide a certain reference for the region’s urban landscaping.The main research results are as follows:(1)through the investigation of the plant species,plant community structure and type of the Huang Huai plain and hilly town area in Northern Jiangsu Province,the actual situation of landscape trees in this area has been generally recognized.At present,there are 45 families,39 genera and 166 species in this region.Old and famous trees a total of 4386 strains,accounting for about 30%of the total number of the province.The structure and types of plant communities,in the area of the 248 sample plots of urban landscape and green space in the evergreen broad-leaved mixed forest has 88,accounting for 35.6%of the total;Deciduous broad-leaved forest 63,accounting for 25.5%;Mixed coniferous and broad-leaved forest 54,accounting for 26.4%;28 species of evergreen broad-leaved forest,accounting for 11.3%of the total.Deciduous coniferous and evergreen coniferous type only has 2,accounting for about 1%.Generally speaking,the plant community types in this area were dominated by the mixed type of evergreen and deciduous broad-leaved forest,deciduous broad leaved forest and coniferous broad leaved forest.The number of evergreen broad leaved forest is in the middle,and the deciduous and evergreen coniferous forest is the least.(2)to make detailed planning of the regional urban tree species planning,according to landscape tree species in ecological adaptation ability,plant community species diversity and species anti pollution ability and other three aspects will be suitable for garden tree species grown in this area for detailed planning,draw the corresponding tree species planning.In ecological adaptability,can be divided into light,soil and water etc..To provide a reference for city landscape construction in the region,has a positive significance to promote the stable development of regional landscape construction.(3)this paper sums up the problems in the region appeared in the application of landscape trees in the city,such as region in different city greening tree species in similar degree higher,landscape have little difference the lack of prominent geographical features of plant landscape.At the same time,through the field research,summed up the regional tree species resources are rich,the potential of the application of native species.The introduction of exotic ornamental plant resources were analyzed,and the rationality of tree species planning was guaranteed.To provide a reference for the planning of urban landscape tree species in this area.(4)Under the guidance of the theories of landscape architecture,landscape ecology and plant community,comprehensive literature data and field survey,combining with the natural environment and human history characteristics,urban landscape tree species planning was carried out in the aspects of ecological adaptability,biological diversity,and resistance to pollution,Planning the corresponding ecological habits of tree species,Such as the water adaptation ability of tree species planning,planning extreme xenophile’s tree species and 21 species,xenophile’s tree species,a total of 540,borm in species of 618,43 species hygrophilous tree species,aquatic species 90.The tree species planning content,of the landscaping work has practical application significance,has a positive role in promoting the stable development of the cause of the regional landscaping and for the standardization of urban greening tree species application has certain directive significance.