Research On Suitability Evaluation Of The Greenway Route Selection In County Territory

With the success of greenway practice in the United States,Japan,Germany,Singapore and many other countries,there has been an upsurge in the planning and construction of greenways in China.The Green Road is a linear green open space that can connect parks,protected areas,scenic spots,historical and cultural areas,urban and rural residential areas,etc.It has the protection of natural ecology,historical and cultural resources,provides space for urban and rural residents to enjoy recreation and exchanges.And to promote tourism development and other functions.As a sustainable land use method,the greenway has gradually become the future development trend.The greenway system planning at the regional scale and the urban scale is mostly distributed in areas with high economic level,and the scale is relatively large.The line selection method is relatively mature and perfect.In contrast,the greenway system planning at the county scale is still in the primary exploration stage.There are few planning cases and studies,and the greenway route selection method is not mature.As China’s basic administrative jurisdiction,a large number of ecological,cultural,and landscape resources are concentrated,and it plays an irreplaceable role in China’s ecological map.As the county scale is moderate,the function of the greenway is ecologically protected and traffic-oriented.It is directly related to the development of townships and tourism,and has a large space to play.Therefore,the selection of green lanes at the county scale has very important significance for regional ecological protection and economic development,and has broad application prospects.The paper firstly described the research background and significance of greenway line selection suitability assessment,summarized the relevant theoretical research on greenway and greenway line selection at home and abroad,combed domestic and international research on green line route selection factors and line selection methods,and summarized Which can learn from the experience.According to the main research contents of the paper,the corresponding research methods and research framework are proposed.Secondly,the concept of the selection of greenlanes and green lanes in county areas and the principle of line selection are discussed,and the related theories of landscape ecology,landscape connectivity theory,green space system planning theory and other related theories are taken as a support.After analyzing the selection factors of county greenway line selection,by calculating the weights of various factors and determining and evaluating the evaluation indicators,the suitability evaluation system for county greenway line selection elements was constructed in detail,and Xingan County was taken as an example to pass through Xingan County.The green line selection elements,using the county green line selection factor evaluation system,are supported by the GIS platform,using the GIS quantitative suitability overlay analysis method,supplemented by the analytic hierarchy model,and then using the spatial analysis of GIS software.Modeling The weighted overlay analysis of the evaluation factor layer data to obtain the suitability analysis results to form the initial line selection of the greenway,and then combined with the layout of the route to obtain the final layout of the green line selection as“one heart,one axis,two rings The spatial pattern of "four veins" and the design of one main line,two ring lines and three secondary lines.This paper can be used as a typical case of county greenway selection in the future,providing new reference values,new models,and new ideas for the selection of green lanes in other counties,and is of practical significance for promoting the construction of greenways in Xing’an County.