The Plant Communities Landscape Analysis And Optimization Of Hefei High Volume Rate Settlements

In recent years, China's growing economy triggered a wave of expanding modern urban and construction of urban space. However, large-sized cities faced expensive land prices and huge population, the development of high volume rate settlements is not only an effective way to ease the contradiction between people and land, but also to adapt to the inevitable development of China's urban. High volume rate settlements belong to the emerging settlement patterns, and the corresponding research of landscape planning is still in its infancy, as the basic elements of residential landscape, plant community is one of the key factors to promot residential landscape and ecological functions. Therefore, it's the only way to promote ecologically sustainable development of settlements,by which creating a healthy and stable plant communities and maximizing the effectiveness of ecological and landscape value of plant communities.In this paper, the research object is the plant community landscape in Hefei's high volume rate settlements.And the research contents are the Construction and Landscape effects of plant communities in five typical high volume rate settlements with different regions of Hefei. It is taken a critical sampling method to select 44 representative plots by drawing natural plant community research methods and artificial plant community with urban characteristics to analyze the structure, quantity and diversity of characteristics of plant community in Hefei high volume rate settlements. According to the actual data collection and collation, there are 39 families, 55 genera and 71 kinds of plants in the 44 plots of plant communities in total under the investigation of five residential areas, which belong to the native plants are 26 species.The number of used native plants are relatively low proportion which shall be required to strengthen.And the most kind of plant communities of plants is the evergreen and deciduous mixed type, which is in accordance with the regional climate characteristics in Hefei.The species diversity index of plant communities of shrub is generally the highest, while the one of herbaceous layer species is relatively low, particularly the application of the vine plants is required further enriched.The comprehensive Evaluation Model is established, which factors are visual quality, eco-efficiency and benefits of landscape,based on the high volume rate settlements Hefei plant community structure and quantity analysis of the characteristics of research.Through the experts' evaluation scoring,the different weights value are setted.By comprehensive evaluation and analysis of Plant Community landscape Residential Hefei high volume rate, the evaluation can be obtained:there are 4 plant communities belong to level 1, 36 plant communities belong to level 2 and 4 plant communities belong to level 3 in 44 plots in totally. It is illustrated that the quality of plant community landscape in Hefei high volume rate settlements is totally fine, but still lack the number of outstanding community structure, which still have a large room for growth.Based on the analysis of plant community structure and quantity and comprehensive evaluation of the plant communities in investigation residential area, it can be found that there are many deficiencies in current high volume rate settlements plant community landscape.For example, the use of native plants is not enough, especially the lack of species of evergreen plant species, color leaf tree species as well as the vague of green landscape image for high-volume ratio. And the ignorence of the environmental characteristics in high volume rate settlements is also a problem. It is atemptted to put forward optimization tips in line with the characteristic of plant communities in Hefei high volume rate settlement to solve the problems mentioned. According to the environmental characteristics of high volume rate settlements, it is suggested that the different areas of the plant are distinguished by the design layout configuration requirements, in order to improve the quality of landscape construction in high volume rate settlements, and create a ecological harmony and healthy living environment in Hefei.