Study On Planning Of Woody Landscape Plants In City Green Land System Planning Of Tongcheng

The Planning of Woody Landscape plants is an important part in City Green Land System Planning,but it's not attach enough importance at present.Based on the field survey,and analysis of the natural secondary forest,the afforestation plants around the village,the river,the road and the house,the afforestation plants in the city and in the direct of landscape dendrolgy,urban ecology,landscape ecology,the city green land system planning,choose the garden species which can most suit the nature conditions,maintain and improve the ecological environment activly and effectivly, rich the urban Landscape,reflect the history and culture,show the local style,meet the multi-functional requirements of the urban landscape.Based on the different importance of the species,we do some system arrangement.The main results shown as follows:1.Investigation of nature secondary forest.The well preservation nature secondary forest community including Chinese sweet gum,Masson pine—Lespedeza—Garden burnet Community,Masson pine,Chinese sweet gum—Paper mulberry—Duchesnea indica Community,Melts fragrant,Chinese sweet gum—The sorghum soaks—Lysimachia clethroides Community,Masson pine,Chinese sweet gum—lespedeza—Duchesnea indica Community and so on.The composition of tree species in nature secondary forest including 127 species,82 genuses,54 families,in which have ardor 59 species,40 genuses,25 families,shrub 52 species,32 genuses,20 families,cane 16 species,13 genuses,9 families;evergreen ardor 7 species,5 genuses,4 families,deciduous ardor 52 species,35genuses,22 families,evergreen shrub 7 species,5 genuses,5 families,deciduous shrub 45 species,27genuses,16 families,evergreen cane 2 species,2 genuses,2 families,deciduous cane 14 species,11 genuses,7 families.Through the geologic distribution analysis of genuses types, there are 3 genuses belong to the cosmopolitan,accounts for 3.7%of the total genuses; 27 genuses belong to the tropical distribution,accounts for 32.9%of the total genuses; 49 genuses belong to the temperate distribution,accounts for 59.8%of the total genuses;3 genuses belong to the endemic to china,accounts for 3.6%of the total genuses.It shows that the flora diversity of the nature secondary forest in tongcheng have the obvious characteristic from tropical to temperate and reflects the characteristic of sub-tropical.2.Investigation of the afforestation plants around the village,the river,the road and the house.It inclding 85 species,71 genuses,48 families,in which have ardor 60 species,shrub 24 species,cane 1 species;evergreen species 28 species,deciduous species 57 species.Through the geologic distribution analysis of genuses types,there are 3 genuses belong to the cosmopolitan,accounts for 1.4%of the total genuses;28 genuses belong to the tropical distribution,accounts for 39.4%of the total genuses;37 genuses belong to the temperate distribution,accounts for 52.1%of the total genuses; 5 genuses belong to the endemic to china,accounts for 7%of the total genuses.It also shows that the flora diversity of afforestation plants around the village,the river,the road and the house in tongcheng have the obvious characteristic from tropical to temperate.3.Investigation of garden tree species in tongcheng.It including 130species,94 genuses,54 families,in which have ardor 75 species,56 genuses,34 families,shrub 50 species,39 genuses,31 families,cane 5 species,5genuses,4 families;evergreen species 61 species,37genuses,27families,deciduous species 69 species,58 genuses,36 families;and have the spring flower 28 species,21genuses,14 families,summer flower 27species,22genuses,17 families,autumn flower 3species,3genuses,3 families,winter flower 2 species,2genuses,2 families.Through the geologic distribution analysis of genuses types,there are 2 genuses belong to the cosmopolitan, accounts for 2.1%of the total genuses;34 genuses belong to the tropical distribution, accounts for 36.2%of the total genuses;53genuses belong to the temperate distribution,accounts for 56.4%of the total genuses;5 genuses belong to the endemic to china,accounts for 5.3%of the total genuses.It shows that the flora diversity of garden tree species in tongcheng have the obvious characteristic from tropical to temperate.4.The choosing and planning of the garden tree species in tongcheng.The regional vegetation shows as mix forest of subtropical evergreen and deciduous broadleaves,in which the deciduous species is the main type.Through evaluation,the individual quantity ratio between evergreen species and deciduous species is 2:3 or 3:7,of ardor species and shrubspecies is 1:2～3,of quickly-growing,middle quickly-growing and slowly-growing is 1:2:2,of endemic species and extra tree species is 4:1,of gymnosperm and angiosperm is 1:9.The ratio of projected area between woody plants and herb is 4:5.The 2 main tree are:Fragrant camphor tree and Chinese parasol tree.The 13 key tree are:Southern magnolia,Sweet-scented osmanthus,Palm, Deodar cedar,Chinese ilex,Huangshan goldenrain tree,Hybrid Chinese tulip tree,Michelia alba,Chinaberry,Gingko,Weeping willow,Albizzia julibrissin,Chinese wing nut.The 152 common tree in which there are evergreen ardor 25 species,deciduous ardor 49 species,evergreen shrub 24 species,deciduous shrub 33 species,evergreen cane 5 species,deciduous cane 9 species,bamboo 7 species.5.The determination of city flower and city tree.The city flower is Sweet-scented osmanthus,the city tree is Chinese parasol tree.6.Protection plan of ancient and famous trees.We carry on the investigation of ancient trees in city territory scope.In the city territory scope has ancient trees 99,of which there are 3 between 600 to 800 years,14 between 400 to 599 years,28 between 200 to 399 years,54 between 100 to 199 years.At last,put forwarded the protection and management propositions.7.The plant identification planning.The paper brings up the spirit of plant identification for the first time,introduces the expression way of plant identification, and states how to enhance the identification of the city's characteristics,through the symbol function of city tree and the city flower,identification function of the color,the shape and the fragrance identification of plants,the landmark function of old trees. Apply the spirit of plant identification in the road landscape design,the residence areas landscape design and the dispose of the nodes,and make the combination of the nodes,roads and the net design of the city reflect the relationship of the dot,line,surface in the plant design,form the identity system of urban plant.