Research On Park Greenbelt Based On Urban Forest Structure

With the continuous expansion of urban land and population and urban development,many problems have arisen in the process of urbanization.The main problem is the worsening of urban environment,especially in metropolis.Beijing as the capital,is the most fastest-growing and populous city,which is the most obvious place to express the advantages and disadvantages of urbanization.Urban forest is a combination of forest and city,which is an important means to improve the urban environment.According to the concept of urban forest and urban forest structure content and so on,fully understand the connotation and significance of urban forest structure.Analysising the park green space which is the most frequent area of people's daily activities,aims to construct the park green space with ecological benefits.Urban forest is to bring nature and forest into the city.Park green space is the greenbelt type which has the most contact with the public in the urban green space system,the forest cover rate is high and the plant species is rich.In this paper.The study of park green space based on urban forest structure can maximize the social,economy and ecological benefit.Thus,it is an important means to improve the environment for Beijing,a city with both urban advantages and disadvantages.The constituent element of urban forest is plant community.This paper mainly studies the urban forest structure based on plant community elements.It mainly studies from three aspects.The first is the composition of tree species,which to analyzes the park green space from the individual characteristics of plant species.The second is the spatial structure,the spatial structure is divided into horizontal structure and vertical structure,and the research from two dimensions makes the result more scientific.The third is the community type,to analysis of the whole community composition.Collecting data through field research,and then integrating and analyzing the data.Park green space is to provide recreation space for visitors.Based on the analysis of urban forest structure on the vegetation community of parks.Ornamental plant landscape,which is the basic requirements of the green plant community in the park should be taken into consideration.This paper evaluates the plant community landscape in park green space from the perspective of dialectics.Using the AHP analytic hierarchy process(AHP)to weight calculation,at the saine time to ten park has carried on the questionnaire interview,after a comprehensive evaluation calculation,obtained the park plant landscape evaluation results,to analyze and summarize the results.Analyze the park green space based on the above Angles.The forest coverage rate of Beijing park green space is rich and the plant density is higher,and most of the park's plant landscape is more ornamental.However,the green space in Beijing still have problems such as the imbalance of the proportion of plant density and the imbalance of the proportion of the trees.Aiming at the problems of Beijing park green space,this paper puts forward the corresponding solution strategies.The urban forest structure is of great significance to the development of the city.In the future,urban forest will also become the premise and foundation of urban green space type construction.At present,developing urban forest is still the top priority of China and even developing countries.