| Urban green heart is an important plaque in urban green space system,and also an important part of urban space system.It has great significance in improving urban living environment and improving urban function.However,the existing urban green heart tends to have a relatively simple function.The planning neglects the correlation and systematic between the green heart with the city,greatly reducing the function and value of the green heart.Therefore,how to strengthen the connection between urban green heart and city and achieve the maximum value of green heart in planning and design is one of the key issues of research.In response to the above problems,the author conducts a series of basic research on the development,structure and characteristics of the urban green heart,taking the "edge effect theory" as the entry point,and the green heart marginal area as the realization of green The medium of interaction and coordinated development between the heart and the city explores the role,characteristics and planning strategies of the marginal space of the green heart.Firstly,this paper innovatively proposes a method for demarcating the spatial extent of the green heart.That is to say,according to the characteristics of the marginal space of the green heart,a plurality of evaluation indicators is established from the three aspects of natural elements,social elements and self-attributes,and then the evaluation system is constructed by the analytic hierarchy process,and finally the GIS analysis is used to determine the range of the edge space of the green heart.Secondly,the paper proposes urban green heart landscape planning strategies from four aspects:ecology,land use,transportation and culture.In terms of ecology,it is necessary to control the shape of the edge of the green heart,use the marginal space to isolate the core area of the green heart,construct the urban park group,and connect the urban green space system.In terms of land use,the green heart is completely prohibited from polluting land,and the marginal area can develop culture moderately.Science and education can gather popular land types to enrich the function of the green heart.In terms of transportation,building a dynamic and static traffic and slow-moving system inside and outside the green heart margin space make most of the traffic functions of the green heart.In terms of culture,respecting for natural texture and regional culture,and paying attention to the functionalities of cultural landscapes.In addition,the paper also studies and analyzes the cases of Leshan Jiazhou Green Heart,Wuhan East Lake Green Heart,Shaoxing Jinghu National Wetland Park,Yuyao Green Heart,and Jinan Huashan Historical and Cultural Park.By analyzing the problems and solutions in these actual projects,this paper combines the above theoretical research results and takes Beijing Tongzhou Green Heart as an example to demonstrate the scientific and feasibility.This study hopes to find out the landscape planning method of the edge of the green heart by the"edge effect theory",thereby strengthening the correlation and integration of the green heart and the city,and improving the overall value of the green heart.In the end,the vision of achieving urban development and a win-win environment,cultural resources,and people’s lives will be realized. |
