Research And Investigation On The Current Situation Of Plant Landscape In Changsha Nanjiao Park

Urban park is an important carrier of urban public activities.As one of the five elements of garden,plants play an important role in urban park.As a forest plant park with 92.57%forest green coverage,the Nanjiao Park has a special position in the central and southern part of Changsha City,which has less green space.At present,the Nanjiao Park is facing upgrading,but there has not been a comprehensive survey of landscape plants and plant landscape.In such an opportunity,the author for the first time conducted a comprehensive survey of plants in the Nanjiao Park.The investigation includes: Carpet identification and recording of plant resources in the Nanjiao Park.Recording and analyzing the spatiotemporal landscape characteristics of the plant landscape in the Nanjiao Park.Investigating the plant landscape on the slope of the Nanjiao Park,including the records of plant species,community characteristics and slope engineering technology,and the plant landscape of the important spatial nodes of the park,such as Zhuyuan,Manzhu lake and Shuhong pavilion from the plant configuration,plant planting mode,plant landscape space,landscape line of sight,etc.And on the basis of the investigation,it explores the areas that need to be improved and transformed in the plant landscape construction of the Nanjiao Park.The main research results are as follows:(1)Compiling the list of landscape plants in the Nanjiao Park.There are 232 species in 184 genera of 86 families recorded in this paper.Based on the plant resources of the Nanjiao Park,the plant species in Changsha were recommended according to the application forms of street trees,garden trees,flower border and ground cover,bonsai and vertical greening.(2)By recording the sequential landscape of the Nanjiao Park,the color of flowers,fruits and leaves and the number of plant names were counted.Some suggestions are put forward,such as increasing middle flowering shrubs in spring,increasing herbaceous flowers in summer,increasing autumn leaf landscape of Xiufeng lawn and bamboo garden,and increasing the species and quantity of flowering plants in winter.(3)According to the statistics of slope plant landscape,the list of slope landscape plants in the Nanjiao Park was compiled,and the beautiful and good performance slope landscape in the park was summarized.It is proposed that the slope protection ability,landscape effect,suitable planting of plants and coordination with the overall environment should be considered in the plant landscape configuration of slope.(4)Through field measurement of sight distance and object image height,combined with CAD plan,from the perspective of space volume relationship and viewpoint visual distance,the plant landscape status of bamboo garden and Manzhu Lake in the Nanjiao Park was analyzed emphatically,and some suggestions were put forward,such as building gentle slope into water in Manzhu lake and timely dividing of clump bamboo in bamboo garden.In this paper,through the analysis and summary of plant species,plant planting methods,slope plant landscape,plant space construction and other aspects of the Nanjiao Park,provide some reference advices for the future plant landscape design of the Nanjiao Park.