Evaluation And Research On Landscape Design Of Perennial Herbaceous Communities Under The Guidance Of Neo-naturalism

With the acceleration of urbanization,the city’s natural environment has been destroyed,and the city’s native vegetation has been reduced,resulting in the reduction of urban plant diversity.At the same time,due to the single plant design method,the urban plant landscape has presented a uniform phenomenon.Therefore,based on the research on the design concept of perennial herb community landscape ecological planting under the guidance of neo-naturalism,this paper combines theory and practice to achieve the improvement of urban plant diversity while ensuring the landscape effect and ecological benefits of urban plant communities,plant community stability,reduce the cost of maintenance management.The main conclusions of the research paper are as follows:At first,through the in-depth study of the design concept of neo-naturalistic ecological planting,this paper analyzes the formation and development process of the perennial herb community landscape ecological planting design under the guidance of neo-naturalism,and summarizes the Piet Oudolf 和 James Hitchmough’s two plant landscape design masters of the plant community landscape design techniques.Secondly,through investigations on the herbaceous community landscapes in Shanghai,Hangzhou and Suzhou,38 species and 76 species of perennial herbaceous plants were collected,and their plant community structure,plant diversity and species composition were analyzed.The method of law and analytic hierarchy process constructed a new naturalistic perennial herb community landscape evaluation index system,and applied the evaluation index system to the evaluation of research samples.The evaluation results show that the scores of herbaceous community landscapes in Shanghai,Hangzhou and Suzhou are between 0.32-0.65,and the evaluation grades are concentrated in the three grades Ⅲ,Ⅲ and IV.The evaluation results are consistent with the actual situation.Finally,an empirical study on the landscape of the neonaturalistic perennial herb community was carried out.The art ecological hybridization method of Piet Oudolf was used to carry out the experiment of the neonaturalistic perennial herb community landscape in Suzhou.At the same time,the seed ecological blending of James Hitchmough was used.Methods,four herbaceous community landscapes in Shanghai and Hangzhou were optimized.