| Since the 21st century,Chinese cities have witnessed rapid development and urbanisation has profoundly changed the urban landscape and the lifestyles of urban residents.With the change of the main social contradictions and the improvement of the territorial spatial planning system,the public’s demand for the service level of the city has become higher and higher,and they pay more attention to the humanistic care and fairness and justice aspects of the city while pursuing material conditions.Urban spatial resources are a scarce resource and a spatial carrier to achieve equity and justice,and the allocation of resources has become a decisive factor for spatial equity.Taking the main urban area of Kunming City as an example,the thesis,based on the dual objectives of urban spatial equity theory construction and multi-source geographic data fusion,integrates POI data,night lighting data,OSM road network data and statistical yearbook data to evaluate urban land use and urban public service facilities for spatial equity,explores the formation mechanism of urban spatial inequity,and finally proposes a perfect path for cities to achieve spatial equity.The main results and conclusions of the study are as follows: firstly,in terms of spatial equity in urban land use,the area share and performance equity values of land use types in the main urban area vary greatly,with the highest opportunity equity in Chenggong District and the highest performance equity in Wuhua District;The spatial and temporal characteristics of land use show that the area of two land types of forest and construction land in Chenggong District gradually increases during 2011-2021,the area of grassland decreases year by year,the area of three types of land use,namely,water,shrubs and bare land,remains stable,and the three types of land use,namely,forest,agricultural land and water,roughly show a strip-like distribution.Secondly,in terms of urban public service facilities,the results of the opportunity equity evaluation show that residents in different residential areas have equal access to green space and square facilities,and the proportion of resources for green space and square facilities enjoyed by the elderly group in Chenggong District is higher than the equal share of society,with the highest degree of opportunity equity;the results of the performance equity analysis show that the degree of accessibility of the pedestrian network of green space and square facilities in the main urban area can be expressed as high inside,low outside and medium balanced The results of the performance equity analysis show that the degree of accessibility of green plaza facilities in the main urban area can be characterised as high,low and medium balanced.The growth rate of the number of green space square facilities in Chenggong District is the highest in the main urban area between 2012 and 2021,and the spatial pattern gradually changes from a small sporadic distribution to a large centralized distribution. |
