Analysis Of Land Use Characteristics And Influencing Factors In Qianshan County Based On Fractal Characteristics

Land use/cover change has always been one of the important contents of environmental change research,which can clearly reflect the relationship and connection between man and nature.Among them,land use can be reflected by the types of ground surface.Therefore,land use Research can be realized by studying the changes of land types.In order to quantify the change process of land types and analyze its driving forces,fractal theory is introduced in the research process for analysis.Through fractal theory,the inherent complexity of the evolution of land use types can be further studied.And stability,reveal the fractal characteristics of the spatial structure of land use,so that managers can take effective measures to rationally allocate land resources in the research area,and realize the sustainable development of land use by continuously optimizing the spatial structure and layout of land use.Based on the land use change data in 2014 and 2019,this paper uses Arc GIS,Matlab and other software to conduct a detailed analysis of the land use changes in the county of Yanshan County during the five years,and then uses the SPSS software to conduct a detailed analysis of the land use in the past five years.The changes in fractal characteristics of the terrain map spots are analyzed,and in order to study the driving force of the changes in fractal characteristics,human factors and natural factors are discussed.The research conclusions are as follows:(1)Analyzing the quantity and distribution of land use in the county from 2014 to2019,it can be seen that the changes in Yanshan County from large to small are cultivated land,construction land,forest land,garden land,grassland,and water area.Grassland is transferred out,and other land types are transferred in.(2)After the analysis of land use and land types,in order to deeply explore the changes of land types during the past five years,it is necessary to analyze the changes in the fractal characteristics of land types.The fractal dimension is used as the starting point,and the year2014,The land use data in 2019 is used as the basis to calculate the fractal dimension of the entire study area and the subordinate towns,obtain the characteristics of each land category from the perspective of the county as a whole and the township,and obtain the change law of the fractal dimension.(3)In order to analyze in detail the influencing factors of the change of fractal dimension,use Arc GIS software to extract road,elevation,slope,aspect,river and other data from DEM,linear features and other data,and perform buffer analysis on it.Observe the degree of influence on the fractal characteristics of land use types and the way of influence.Then,through the 2014-2019 yearbook of Jianshan County,we extracted social statistical data such as population and economy,combined these data with the fractal dimension changes of land use types,and used the correlation coefficient method to calculate the population,economic factors and fractal dimension changes.The degree of relevance.