Analysis On Aromatic Plant Communities And Plant Landscaping In Ankang City

Plant is the theme of urban green space system,not only adds natural beauty to the city,but also plays an important ecological function.Aromatic plant is one of the unique species of plants,in addition to the ecological ornamental;the health function of its fragrant flowers has gradually begun to receive attention.At present,most of the application of aromatic plants in China mainly focuses on food,medicine and other spices,but the research on aromatic plant community and landscaping is still in its infancy,and it is still a blank in Ankang.In order to further explore the application of aromatic plants in different urban green spaces,this study has made an in-depth analysis of aromatic plant communities and plant landscaping in Ankang.Taking Ankang as an example,this paper investigates the characteristics of aromatic plant species in 5 types of urban green areas of Ankang square,residential area,road,unit and park by using random sampling survey and typical sampling survey.18 typical samples of 150 samples were selected to record aromatic plant communities,based on plant community studies,landscape ecology,landscape plant landscaping and so on,for the first time,the species,classification,adaptability,importance and diversity of Ankang aromatic plants in plant landscaping were investigated.The present situation of application of aromatic plants in Ankang was summarized and the corresponding optimization suggestions were put forward.The results of the survey and analysis are as follows:1.There are 60 species of aromatic plants in 5 kinds of urban green space in Ankang City,belonging to 22 families and 42 genera.There are 55 species of dicotyledonous plant and 5 species of monotyledonous plant,32 species of trees,22 shrubs,4 herbs and 2 vines,and 52,8,5 and 6 ornamental sites,8,5,6,48,5,4 and 3 respectively.2.There are 30 species of evergreen woody plants and 30 species of deciduous woody plants in urban green space of Ankang City.Evergreen woody and evergreen herbs accounted for the same proportion of all aromatic plant species,and the seasonal changes of plants were obvious.In the aromatics of Ankang City,15,27,23 and 22 species of aromatic plants with good resistance to pests,frost resistance,pollution resistance and growth were respectively.3.The important value of aromatics in Ankang City varies from 8.71 to 38.10,the main dominant species are camphor,Ligustrum lucidum,osmanthus,and so on.The important value of aromatic shrubs is between 1.33-61.10,the main dominant species are gardenia,red leaf Shi Nan,rose and so on.Among the five types of green space in Ankang City,there are differences in plant diversity in different urban green types.The richness and diversity index of aromatic plants are the highest in park green space and the lowest in road green space.The evenness of aromatic plants was the highest in the unit attached green space,the lowest in residential green space(arbor layer)and square green space(shrub layer).The Margalfe(R)index,Shannon-Winener(H)index,Simpson(D)index,and Pielou(J)index between the urban green space types of Ankang are all tree layer > shrub layer > herb layer.4.The arrangement of aromatic plants in different urban green areas in the urban area of Ankang City is based on column planting and group planting.The application of aromatic plants in park green space and unit attached green space is rich and diverse,and the applied urban aromatic plants are mainly flower watching plants,shrubs plants and herbs are less used;aromatic plants and their plants are not used.The configuration of the four landscape elements is reasonable and basically meets the requirements of greenbelt landscape design.5.The varieties of aromatic plants suitable for the application of urban green space in Ankang City,the difference of different types of green trees and the application forms of urban green space on the theme of aromatic plants were recommended,and the application characteristics of aromatic plants in urban green space in Ankang City were summarized,and the advantages of aromatic plants in Ankang City in the urban green landscape were put forward.Suggestions are made.