Urban economic circle equidistant attenuation index scale method

Abstract

The invention discloses an urban economic circle equidistant attenuation index scale method. The method comprises the following steps: S1, establishing an urban equidistant ring and variable attenuation relation conceptual model; s2, constructing an attenuation index quantitative expression by utilizing the relative ratio of the main variable to the central city corresponding variable and a composite function between the central distances; s3, performing classified statistics on main variables of different economic circle layers; s4, calculating attenuation indexes of different variables and different ring layers one by one; s5, compiling attenuation index change curve graphs of different city centers and different variables through the steps S1, S2, S3 and S4; representing attenuation characteristics of the same central city and different variables by using an intuitive graph, and describing attenuation differences of different central cities and the same variable. And furthermore, the internal structure and the spatial pattern of the urban economic circle are deepened and understood, the radiation and gathering capability rule of an urban center is understood, and the goal of urban and regional sustainable development is served.

Description

technical field [0001] The invention belongs to the technical field of economic development, and in particular relates to an urban economic circle equidistant attenuation index scale method. Background technique [0002] German agricultural economist Johan Heinrich von Thunnen proposed the "Thunnen ring" applicable to agricultural production in 1826, which opened a precedent for the circle structure theory. With the advance of the industrial revolution, German economist A. Weber, American economist Edgar Hover and others created and perfected the theory of industrial location in 1909 and 1914. In 1933, German urban geographer W. Christaller put forward the "Central Place Theory" by integrating the relationship between urban functions and scales into the location theory, which became the core of urban geography in the study of urban spatial structure. one of the theories. There is a close connection between the city and its surrounding areas, and the spatial interaction bet...

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Problems solved by technology

However, the common shortcomings of these methods are not only that the index system involves a large number, the corresponding relationship between the index and the city connection, the index and the urban radiation and other urban attributes is relatively vague, but also the characteristics of the selected indicators are very different due to different city samples, and because different researchers exist. Large differences in knowledge background make it difficult to avoid the subjectivity of indicator selection

[0004] How to develop a simple, scientific and effective variable decay index model to quantitatively characterize the spatial variation characteristics of the main indicators of the urban economic circle as the center distance increases, and to solve the complex urban center-outer interaction, radiation and agglomeration capabilities To make up for the lack of accuracy and scientificity of the commonly used urban gravity model in expressing urban quality by variables such as GDP and population, and to avoid urban gravity models focusing on the city-city scale equivalence and the same-level relationship, while ignoring the city-county domain -The lack of equality between township administrative regions and different levels of connection is of great theoretical significance

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