大城市边缘区建设用地空间分布格局的定量化测度研究

Quantitative Measurement of Spatial Pattern of Non-agricultural Land in Urban Fringe

  • 摘要: 选择北京市房山区平原地区作为分析样区,在GIS技术的支持下对建设用地的空间分布格局进行了定量化测度研究。分析数据显示,其分布与交通干线具有明显的空间相关,交通干线具有一定的“轴向”聚集和辐射效应。

     

    Abstract: The plain of Fangshan District in Beijing is taken as an area for case study.The present study tends to undertake quantitative measurement of the spatial pattern for non-agricultural land from two aspects.One is the quantitative description of non-agricultural land patches.Three index(fractal dimension,shape index,and circularity) were used to describe spatial graphics of non-agricultural land patches.It is shown that the values of those indexs are always distributed within a limited range by statistics of frequency.The other is quantitative analysis on the spatial distribution of non-agricultural land by variable clumping method(VCM)supported by GIS.

     

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