Study On Social Vulnerability Assessment And Influencing Factors In Urban Fringe Area

In the process of rapid urbanization,urbanization promotes the outward expansion of urban space,and the urban-rural conjunctions become the transition zone of urban and rural space,which has a lot of negative effects after being disturbed by rapid urbanization.To make it a concentrated area of social problems and social contradictions in China.Therefore,in order to promote the healthy and sustainable development of urban space,Improving the adaptability and sustainability of social systems in urban fringe areas has become an urgent problem.With the vulnerability research gradually evolved into a human centered,rapid city,land use change,environmental pollution,changes its structure of public safety and social human factors such as system pressure and impact caused by social vulnerability is getting more and more attention and has become a hot topic in the research background.The global disaster risk management,assessment of social research the vulnerability is known attention risk areas in national and regional scale,and on the micro scale is relatively rare.Therefore,based on the rapid city impact on the structure of the social system as the starting point,the city regional structure theory,social ecological system theory,theory of human relations such as the support,through the the theory of literature review,to the northwest of Changan District as an example to select appropriate research area of social vulnerability assessment indicators,and then use the social vulnerability theory frame and evaluation index The evaluation method is combined with the RS/GIS spatial statistical analysis method to evaluate the social vulnerability of the street unit scale in the study area,and to analyze its social vulnerability from the perspective of spatial differentiation,so as to provide practical reference for its sustainable development.The study found that:(1)In the study area,the spatial distribution of exposure was high in the northwest and low in the southeast,and had obvious aggregation characteristics,the spatial distribution of social vulnerability was not balanced,and the spatial units of low grade were distributed in the streets of Guodu.According to the clustering results of spatial units of 13 streets in the study area,the contradiction between the relationship between man and land is consistent with the spatial distribution of its social and economic activities.(2)Changes in land use patterns and fragmentation of landscapes are the direct causes of vulnerability to disturbances in social systems in urban fringe areas,The social vulnerability is further aggravated by the dislocations between the transformation of social system and the process of urbanization in the urban fringe areas,and the difference and sensitivity of its own system,adaptability and so on.(3)Urbanization will continue to promote the development of urban fringe areas in the coming years,and the risk to social vulnerability within urban fringe areas should be reduced by increasing resilience in order to reduce the negative effects of disturbance factors such as urbanization,To promote the healthy development of urban space,on the basis of reducing exposure,the corresponding policies were established to improve the adaptability of urban fringe areas.