基于公共边测度的城市扩张模式建模研究

Research on Modeling for Urban Expansion Pattern Recognition Based on Shared Boundary Analysis

为解决城市扩张模式界定方法应用于大数据量时处理过程繁琐、工作量大的问题,该文结合GIS空间分析建模工具ModelBuilder,同时基于公共边测度方法,构建了城市扩张模式模型,并以武汉市为例,分析了武汉市1995-2015年的城市扩张模式。结果表明:1)公共边测度方法在城市扩张模式识别上具有简单而明确的特点,能有效区分城市扩张模式的3种类型:填充式、蔓延式和飞地式。2)基于构建的城市扩张模式模型对城市扩张模式进行识别,可实现空间数据的自动化批量处理,简化了传统复杂的操作流程,在保证城市扩张模式研究质量的同时,也在一定程度上提高了城市扩张模式研究的工作效率。

There are many methods to define the urban expansion pattern, but in the practical application, most of these methods are cumbersome in data processing. This paper integrates shared boundary analysis and ArcGIS ModelBuilder method to establish a model to distinguish different types of urban expansion pattern. Taking Wuhan City as the study area, this paper applies the model to define the urban expansion pattern of Wuhan City during the period from 1995 to 2015. The results show as follows： 1） Shared boundary analysis is simple and clear in distinguishing urban expansion pattern, and it is very useful to distinguish different types of urban expansion pattern. 2） The model which is based on GIS spatial analysis can realize automatic batch processing of spatial data and simplify the traditional operation process. While ensuring the quality of urban expansion pattern research, it also improves the work efficiency to a certain extent.