Research On Space Design Of Wanhua Gateway In Yan’an City Under The Guidance Of Ecological Priority

The construction of ecological civilization is a major focus in the report of the 19 th National Congress of the Communist Party of China,and it is also a millennium plan for the sustainable development of the Chinese nation.The ecological development concept of "green water and green mountains are golden mountains and silver mountains" has been recognized by the whole society and has become a big yardstick to measure the level of urban ecological civilization construction.As a typical river valley city,Yan’an has good ecological conditions of mountains and rivers.However,due to the constraints of the construction land conditions,the urban construction is highly dense in the Sichuan road area,the quality of the human settlement environment is deteriorating,and the opposition between the artificial space and the natural environment is intensified.This unhealthy situation continues to spread from the center along the Sichuan road,becoming a continuous impact on the city.The first obstacle to development,the ecological priority strategy is undoubtedly the only choice to solve this problem.Yan’an Wanhua Expressway entrance and exit,as a new urban gateway space after the completion of the Xiyan Expressway,also has typical river valley geomorphic features and good mountain and water ecological conditions,and is relatively independent and less affected by urban construction.Guided by the concept of ecological priority,it can not only highlight the natural ecological characteristics of urban gateways,but also has exemplary significance for preventing the disorderly spread of urban construction and exploring feasible ways for the improvement of urban ecological environment.This paper analyzes the composition,classification,characteristics and basic characteristics of urban gateway space based on the ecological priority concept and the related theoretical research of urban gateways,and analyzes the natural elements,ecological elements,and landscape ecological elements from three aspects: natural elements,ecological elements,and landscape ecological elements.Demonstration of ecological status;based on reference to relevant literature,through combing of ecological components and influencing factors,an evaluation factor that can truly reflect the ecological status of Wanhua Gateway’s space was determined,and its ecological sensitivity was evaluated and summarized.;Then comprehensively evaluate the current artificial environment of Wanhua City’s portal space from three aspects: functional effectiveness,landscape features and cultural symbols;finally,construct the Wanhua Gateway District from the three aspects of ecology,function and image.The control strategy was demonstrated,and a specific empirical study was conducted on the double-repair design plan of the space.The purpose of this research is to explore the optimization of Yan’an City Wanhua Gateway space under the background of ecological priority,and also provide references for the planning and design of other river valley city gateway spaces.