Research And Evaluation Of Plant Landscape Of Podocarpus Garden

The Plant Specialized Garden is not only a gene bank for preserving plant germplasm resources,but also an effective way to protect biodiversity,and it is also an important base for the research and display of specialized,exclusive and specialized plants.With the continuous development of the gardening industry,the special plant gardens are gradually showing a trend of diversified themes.At present,many ornamental plant special gardens such as plum,peony,rhododendron,osmanthus,etc.have been built in our country,but the plants with the theme of Podocarpus Special parks are still relatively rare,and there are few corresponding studies.The Podocarpus Garden of Nanning Garden Expo is a large-scale Podocarpus special garden that integrates the functions of the protection of Pinus sylvestris plant species,horticultural display,scientific research and popular science education.This study takes its plant landscape as the research object and deeply investigates and analyzes the garden.Podocarpus theme landscape and plant community,and evaluate the beauty of plant landscape,on this basis,explore the landscape elements that affect its beauty,summarize from macroscopic and microscopic perspectives and summarize the Podocarpus special garden when plant landscaping Comprehensive consideration should be given to the four aspects of planning and design,plant ecological habits,recreational needs and aesthetic needs.It has important research significance for my country to provide reference basis for the construction of the Podocarpus special garden in the future.The research content and results of Podocarpus special garden in this article are as follows:(1)Analysis of the landscape of Podocarpus theme landscape: The landscape in the park is divided into six landscape divisions according to its characteristics.Podocarpus is planted in five landscape areas except the secondary forest zone.There are 35 species of Podocarpus in the park,with a total of 343 trees.;The arrangement forms of Podocarpus in different landscape divisions include solitary planting,planting,cluster planting,row planting,scattered planting,and bonsai planting;in the form of landscaping,combining different garden elements such as rocks,buildings,water bodies,Garden roads,greening and theme crafts make up different types of landscapes;they use the landscaping techniques of wanting to advance first,combining the virtual and the real,moving the scenery differently,and cleverly borrowing nature.(2)Investigation and analysis of plant community landscape: The survey was conducted through a combination of general census and sample survey.A total of 68 ornamental plants in the park,belonging to 53 families and 62 genera,were recorded;the ratio of trees,shrubs and herbs was 1.1:1.3 :1,the species ratio of evergreen plants to deciduous plants is 12.6:1;the plant community space is mainly semi-open;the average species richness of trees,shrubs,and herb layers is 4.267.(3)Landscape evaluation research: The research uses the SBE scenic beauty evaluation method to evaluate the landscape quality of the plant landscape in the garden,and further quantifies each landscape factor in conjunction with the SD semantic analysis method,and uses the SPSS 24.0 software to perform the scenic beauty evaluation and each evaluation factor.Correlation analysis,and establish a multiple linear regression model.The results show that different evaluation groups have more consistent aesthetic orientation.The model shows that color beauty,skyline,layering and harmony are the main factors that affect the beauty of the plant landscape.These four aspects should be the primary considerations in the future planning and design of the plant landscape of the plantation.