基于空間分形特征的城市群實(shí)體空間識別方法
[Abstract]:Urban agglomeration is an important research field in urban geography. It is the premise and foundation of studying urban agglomeration to define and identify the physical space of urban agglomeration. Urban agglomeration is a cluster of many cities and towns. The spatial recognition of urban agglomeration is mainly based on city, but the spatial form of urban agglomeration is not considered. The shape of urban agglomeration entity space has self-similarity, and spatial fractal feature can be used as a representation tool of self-similarity. Through the analysis, recognition and extraction of spatial fractal feature, the objective measure of spatial object based on morphology can be realized. In this paper, the fractal characteristics of urban spatial morphology of urban agglomeration are measured from the spatial minimum identifiable units of different scales, and the objective identification method of urban agglomeration towns is proposed. This method uses the spatial fractal features of cities and towns to identify the towns belonging to the urban agglomeration, and obtains the spatial fractal features of the urban agglomeration towns by the change of spatial minimum identifiable units. On the basis of this, the existence range of spatial fractal features is recognized, and the spatial distribution of urban agglomeration is obtained by mapping it to the recognition of urban agglomeration. This paper applies this method to the Beijing-Tianjin-Hebei urban agglomeration. Based on the 2016 Landsat satellite remote sensing image, it realizes the recognition of the cities and towns formed by the Beijing-Tianjin-Hebei urban agglomeration, and provides a useful attempt to define the physical space of the urban agglomeration.
【作者單位】: 中國地質(zhì)大學(xué)(北京)信息工程學(xué)院;
【基金】:國家國際科技合作與交流專項(xiàng)(S2015ZR1018)~~
【分類號】:F299.2
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