An Analysis Of Influencing Factors Of Urban Green Space Layout Based On Geographic Detectors

On the nineteen Party of the party,general secretary Xi Jinping will build an ecological civilization and promote a new pattern of harmonious development between man and nature in an important position.It is required to improve the total amount of urban green space through various ways,and to solve the problem of uneven development of regional green development in China,and to build a stable city city green system pattern based on scientific practice theory.City green space is the spatial manifestation of city green space system,which meets the needs of city residents' culture,economy,health and other functions,and gives people the opportunity to feel natural and close to nature.The function and nature of city green space determine its spatial pattern,and it is also affected by natural,social,economic and other aspects.The purpose of this paper is to analyze the influencing factors of urban green space layout in Rizhao City,so as to grasp the area,spatial distribution pattern and driving factors of urban green space in time,so as to provide basis for improving the level of urban green space.Firstly,the concept and connotation of city green space and geographical detector are defined.Through literature reading method,we have studied the research on the types of city green space layout factors,the research of the influencing factors of city green space layout,the research of the influence factors of city green space layout,and the application of the geo detector in four aspects.Then,through literature review,the factors that influence city green space layout are summarized and classified.Combined with case analysis,the scope and function mechanism of each influence factor are analyzed,and the main factors affecting the layout of urban green space are determined.Taking the main urban area of Rizhao City as an example,through RS(remote sensing)and GIS(Management Information System)as the main technical means to analyze the spatial pattern of urban green space,the influencing factors of the layout of urban green space in Rizhao City are spatialized and typed;the influence of each factor on the layout of urban green space and the interaction relationship are analyzed through the technology of geographical detector.Finally,the main influencing factors of urban green space layout are analyzed and the planning strategies to improve the rationality of urban green space layout are put forward.The specific conclusions of this paper are as follows:1.Through literature research,the influencing factors of urban green space layout are: topography,climate conditions,urban hydrology,population density,economic basis,history and culture,road traffic,policies and regulations,road traffic.Combined with the objective environment of the main urban area of Rizhao City,six factors are selected as the main influencing factors of this study,including topography,urban hydrology,population density,economic basis,road traffic,policies and regulations.2.Based on the analysis of the spatial discretization results of six influencing factors and the distribution of urban green space in Rizhao City,it is found that topography,urban hydrology,policies and regulations have a positive correlation withthe development of urban green space in Rizhao City;population density,road traffic and economic foundation have a greater negative effect.3.Through the single factor detection of geographical detector,it is found that the order of influence on the layout of green space in the main urban area of Rizhao City is: topography(28%),urban hydrology(16%),policies and regulations(15%),population density(13%),road traffic(10%),economic basis(0.7%).The maximum explanatory power of topography as a natural factor is 28%,and that of policies and regulations as a human factor is 15%.Through the multi factor interactive detection of the geographical detector,it is found that the six factors show nonlinear enhancement after the interaction of the two factors,which shows that the influencing factors have a strong interaction in the impact of urban green space layout,making their respective influence increase.Policies and regulations ? urban hydrology has a maximum influence of 52%,and the interaction is very strong,which is the main factor of interaction.4.According to the analysis results of the geographical detector,this paper proposes that we should fully respect the natural topography and the urban hydrological process in the layout of the urban green space,and scientifically formulate the policies and regulations of the urban green space layout in combination with the idea of ecological civilization and the theory of ecological justice.