Research On The Spatial Form Evolution Of Tiexi District In Shenyang Based On Fractal Theory

Tiexi District of Shenyang used to be a heavy-duty industrial district famous throughout the country,and made important contributions to the country's industrial development and economic construction.At the end of the 1980 s,due to many factors such as the system,structure,technology and historical burden of the old industrial base,Tiexi District gradually declined from glory.At the beginning of the 21 st century,under the influence of the policy of "moving east to west",the Tiexi District has undergone tremendous changes,and the overall appearance has been refreshed.At the same time that the Tiexi District has undergone earthshaking changes in a relatively short period of time,its urban spatial form will inevitably undergo dramatic changes.This paper uses the fractal theory and methods to study the spatial morphology evolution of the Tiexi region from 1986 to 2019.In theoretical research,through the analysis of the relevant research on the domestic and foreign urban spatial form and fractal applied to urban spatial form,to summarize the domestic and foreign research characteristics and research trends,combined with the research focus of this article,to determine the research ideas;in the research method On the top,the research methods of urban space morphology fractal are summarized,the quantitative method based on “fractal dimension” and the graphical method based on “fractal order” are summarized,and the research framework of urban space morphology fractal method is established for different research contents;In terms of spatial morphology research,from the two aspects of overall network structure and open space,combined with GIS spatial fractal methods,the fractal study of urban spatial morphology is carried out,and the stage characteristics and evolutionary fractal of the overall network structure and open space Summarize the characteristics,and then analyze the dynamic mechanism that affects the evolution of urban spatial form.On the basis of the study of the evolution law,combined with the relevant theories of urban spatial morphology and fractal ideas,reasonable suggestions are proposed for the future urban development of Tiexi District in Shenyang.