Research On The Evolution Of Urban Green Space Pattern In Hanyang District From The Perspective Of Equity

As Socialism with Chinese characteristics enters new era,equity has become the core goal of urban development.The problem of social stratification is becoming increasingly obvious,and the gap between the rich and the poor is widening rapidly.Thus,it is important and urgent to promote the fair allocation of resources.urban green space is an important public resource with the attributes of public goods,which has has important ecological and social cultural functions,and its spatial layout directly affects the quality of life of urban residents.At present,the quantity,quality and publicity of green space in China have been significantly improved.However,the green paradox of unfair green space may be caused by the different demands and access abilities of urban residents with different economic and social status for high-quality resources.Recent research in evaluation of green space fairness is mostly static,lacking attention to the fairness of green space evolution process.Therefore,it is necessary to carry out a diachronic fairness evaluation on the spatial pattern evolution of urban green space,so as to promote the unity of efficiency and fairness of green space allocation.This paper takes urban green space as the research object,and conducts an empirical study on the actual case of Hanyang District.First,the spatial distribution evolution of urban green space in Hanyang District from 2010 to 2020 was analyzed with the help of GIS spatial analysis tools;Secondly,fairness evaluation was carried out by an new fairness evaluation model that based on spatial correlation analysis,while the service level of urban green space is measured by the improved two-step mobile search method.Finally,the study on dynamic mechanism that affects the fairness of green space was conducted,which reveal ing the impact of the evolution of urban green space spatial pattern on fairness.and then propose a more reasonable optimization strategy.The evaluation results show that:(1)The scale of urban green space in Hanyang District continues to expand,and the evolution of urban spatial pattern shows an expansion direction of "from north to south",and the spatial distribution is more dispersed.(2)On the whole,groups with a low socioeconomic level enjoy a higher level of green space service.However,during the temporal and spatial evolution of green space,green space service shifts to groups with a high socioeconomic level,and the spatial differentiation of various socioeconomic groups intensifies.(3)The natural landscape pattern,government behavior,and market mechanism together constitute the promotion theory of urban green space evolution,and their roles in the analysis of green space fairness are intertwined.