The Research Of Ecological Security Patterns And Space Development Prospect In Quanzhou On GIS

With the rapid development of urbanization in China and the advancement of industrialization,the ecological damage and the environmental pollution problem occurs frequently,and the urban ecological problem has become an important problem that can not be avoided in urban development.The urban and rural planning is a valid management means of coordinating all aspects of demands in rural development,we don’t carry out the specific research for urban ecological security and its space development in the traditional management model.Based on the coupling relationship between urban ecological security pattern and urban space development,in this paper,I will further discuss the urban space development prospect model on the basis of the constraints of urban ecological security pattern,and take Quanzhou City,Fujian Province as a research object to make a applied research of theory.Based on the technical support of ERDAS IMAGINE system,ArcGIS software and SLEUTH model,in this paper,I will construct the ecological security pattern of the study area and the prediction simulation of urban space development from the perspective of geospatial research simulation.In the study of urban ecological security pattern,with a total of 11 index level influencing factors,3 criterion types: hydrological resources,geological disasters and biodiversity,combining with remote sensing images,DEM elevation and other spatial data,I will carry on the weighted superposition analysis,and finally construct the comprehensive ecology security pattern of the research area.In the study of urban space development,the ecological security pattern was used as the constraint condition,I will use SLEUTH model to do the prediction simulation of the space development of the study area,deeply analyze the development prediction and discuss the assumptions and strategies of regional space structure development of the research area.The whole paper includes 6 chapters.The first chapter is the introductory part,which covers the research background,the research objectives,research significance,the concept and scope of the research,the research contents,the research methods,the innovation of the thesis and the whole framework of the research.The second chapter is the relevant summary,through teasing out the domestic and foreign related research summary,relevant research of urban ecological security pattern,the purpose,the principle and other theories of urban space development prospects under the theory of urban ecological security pattern,clarify the interactive coupling relationship between urban ecological security pattern and urban space development prospects to provide theoretical support for the expansion of paper;the third chapter is the urban ecological security pattern and urban space development prospect method construction.Based on the basic introduction of 3 technologies: ERDAS IMAGINE system,ArcGIS software and SLEUTH model,and the related application of urban planning,I will summarize the construction methods of urban ecological security pattern and urban space development prospect method,and further delineate the idea and the technical route;the fourth chapter is the research area overview and the construction part of urban ecological security pattern system.Determine the scope of the study area through introducing the basic situation of Quanzhou City.Through the method of field research,network data integration and questionnaire survey,tease out the problems of ecological environment of Quanzhou City.Based on discovered ecological security problem,establish the evaluation system of urban ecological security pattern,and list the relevant information of the research data.Finally,construct the comprehensive ecological security pattern of Quanzhou City through ArcGIS software simulation analysis;based on Quanzhou City’s urban space development prospect under ecological security pattern evaluation system,the fifth chapter first introduces the application of SLEUTH model in the development prospect of urban space in Quanzhou City,through setting up the ecological security pattern of different grades as the constraint conditions,simulate the future development scale of Quanzhou City;the last chapter of this paper is the conclusion and the prospect part.In this part,I will conclude and summarize the main research results of the paper,put forward the basic conclusion of this paper through extracting of these researches.In addition,on this basis,sum up the shortcomings in the research process and put forward the prospect of the follow-up research results.