A Study On Greenways Route Selection Method For Xi’an Section Of The Northern Piedmont Of Qinling Based On Ecological Suitability Analysis

The plan of "Two Mountains,Eight Waters,Five Rings,and Ten Corridors" proposed in the Great Xi’an Greenways System Plan will comprehensively promote the greenways construction in Xi’an.It can better coordinate the contradiction between ecological protection and urban development,and improve the people’s quality of life and happiness.The Xi’an section at the Northern Piedmont of Qinling is rich in natural and human resources.If these resources can be used scientifically and rationally,they can not only meet people’s recreational needs,but also inject vitality into the greenways.However,this place is located in an ecologically sensitive area.Once the ecology is destroyed,it is difficult to recover.Therefore,greenways construction should be carried out scientifically and reasonably,with ecological environment protection as the premise.Only in this way can we meet people’s increasing travel and recreation needs,and also achieve a win-win situation of rapid urban development and ecological protection.Under this background,this thesis takes the greenways in the Xi’an section as the research objective,and aims at planning the greenways for the coordinated development of ecological protection and urban construction.Through the research and summary of relevant literature at home and abroad,combined with field investigation,starting from the demands of ecological protection and urban development and construction,this thesis analyzes and evaluates the relevant factors and conditions that affect the construction of greenways,and constructs a set of greenways selection methods that meet the actual conditions of the Northern Piedmont of Qinling.The main content of this research includes four parts: The first part is to sort out the relevant theories and methods of route selection of greenways and clarify the tools and basic methods for route selection of greenways in the Xi’an section of the Northern Piedmont of Qinling;The second part clarifies the spatial characteristics,the contradiction between ecological environment and social development of the Xi ’an section and the status quo of greenways in this area.By comparing the greenways with others,it makes clear the particularity of greenways planning in this region.The third part is the construction of greenways route selection method in the Xi’an section.By analyzing and evaluating the relevant factors affecting the suitable range of the greenways and the nodes,the appropriate range and key points are obtained and the greenways route is selected initially.Then the preliminary route is revised,and the best route is selected after analysis and comparison;The last part is the practice research of greenways route selection method.Through the analysis and evaluation of the factors affecting the greenways route selection,the constructed method is used to determine the layout of the greenways route selection in the demonstration section.Based on the analysis of ecological suitability,this study aims at solving the contradiction between ecological protection and construction,and proposes a route selection method for the ecologically sensitive greenways planning of the Xi’an section at the Northern Piedmont of Qinling.The main conclusions are as follows: first,Based on ecological suitability analysis,an evaluation system and a critical point evaluation system on the greenways route selection range about the area have been constructed.After that,the minimum cumulative resistance model and gravity model were used to select and modify the route;Last,a greenways route selection method consistent with the actual conditions in this area was proposed.Second,take Gaoguan valley — Feng valley turntable as an example to conduct empirical research on greenways route selection by collecting relevant data and information,and combining with actual regional.