Evaluation And Optimization Of Urban Ecological Recreational Space Based On The Concept Of Space Justice

The urban ecological recreation space is an important ecological facility in the city and an important place for urban residents to carry out ecological recreation activities.With the further deepening of globalization and the acceleration of the urbanization process in the world,the urban ecological environment has gradually deteriorated,and the requirements for social,economic and ecological functions in the urban ecosystem have been further enhanced.The rapid expansion of the city has also brought about a series of contradictions and injustices,mainly reflected in the growing imbalance of ecological recreation demand and ecological recreation space of residents,and inadequate supply.Therefore,based on the theory of spatial justice,this study explores the fairness and fairness of the spatial layout of urban ecological recreation in Xi'an by investigating the characteristics of residents' recreational behaviors and using literature analysis,GIS spatial analysis and mathematical statistics.Evaluate and formulate targeted strategies to improve the spatial justice of Xi'an urban ecological recreation space.It is of great significance to the construction of ecological city under the guidance of ecological civilization and the promotion of the fairness and livability of Xi'an urban ecological recreation space during urban expansion.The study concluded that:(1)Through the analysis of the spatial and temporal evolution and current situation of the ecological recreation space in the built-up area of Xi'an city,it is found that the quantity and area have increased from 1990 to 2018,but the space fair requirements for the construction of garden cities and forest cities still exist.a certain distance.Moreover,the construction of Xi'an urban ecological recreation space has lagged behind the speed of urban expansion,and there is a tendency to increase.In addition,the spatial distribution of various ecological recreations in the urban built-up areas of Xi'an is uneven.In general,the eastern,northern and southern regions are more numerous than the central and western regions,while the central urban areas are less distributed thanthe surrounding suburbs.In the administrative area,the Yanqiao District,the northern part of the Weiyang District,the eastern part of the Yanta District and the eastern part of the Chang'an District are the main distribution areas,and the scale is large,while the Gaoling District,Linfen District,the western Yanta District and the western part of Chang'an District are less distributed.(2)Through the analysis of the ecological recreation space service pattern in the built-up area and the accessibility of the ecological recreation space of each residential area and street office,it can be concluded that small-scale ecological recreation space such as city square,community green space and street green space can only Covering a small area around it;scenic areas and large and medium-sized parks have a large service radius,covering almost 70% of the urban built-up area,while in the central urban area,although there is less space for large-scale ecological recreation,due to the area The area is small and there are more space for small and medium-sized recreation,so most of the area is covered.In terms of accessibility,more than half of the residents of residential areas need to travel more than 1 kilometer to reach the nearest ecological recreation space,indicating that the ecological recreation space accessibility in the study area is still lacking.(3)The fair evaluation results of the urban public ecological recreation space layout in the built-up area of Xi'an City show that the overall layout fairness is general,and the comprehensive evaluation score is only 0.4822.From the district-level scale,the fairness of each district in the study area is more obvious.The difference is that the overall score is low,ranging from 0.1 to 0.7.In addition,the scores of the five districts are not more than 0.3.The fairness of ecological recreation in most areas is poor.From the street scale,the fairness is also obvious.There are also significant differences in each region,and 43 of the 65 street offices in the study area are generally fair,poor or poor.Therefore,the spatial distribution of urban ecological tourism in the built-up area of Xi'an is obviously unfair.