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琼北乡村聚落边界形状的量化研究

Quantitative Research on the Spatial Form of Rural Settlement in Northern Hainan

  • 摘要: 以琼北地区的20个传统乡村聚落为研究样本,运用图底分析的方法,借助景观生态学中的3个斑块形状指数:即图形的周长面积比SI1、图形周长与等长宽比等面积的椭圆周长之比SI2和景观分维数SI3分别对样本进行量化分析,结果表明:采用分维数SI3先对聚落边界图形进行初步筛分排序,然后再结合图形外接矩形(弧形)的长宽比和形状指数SI2进行进一步的分析,可以更全面地了解图形的复杂性和破碎度,并且可应用此方法来研究琼北地区乡村聚落的形态特征.

     

    Abstract: In the report, 20 Rural settlement in Northern Hainan were used as the research samples, based on three landscape ecology patch shape index, the ratio of perimeter to inner area (SI1), the ratio of shape perimeter to the perimeter of a ellipse with equal aspect ratio, equal area with the shape (SI2), and the landscape fractal dimension (SI3), the figure-ground diagram method was used for the quantitative research. The results showed that fractal dimension (SI3) was used for the preliminary analysis of the boundary shape settlement, and then, combined with aspect ratio of the external rectangular (arc) and shape index (SI2), the further analysis were performed, which can be more comprehensive for the understanding of the complexity and fragmentation of the graphics, and which can be applied for the analysis of the morphological characteristics of rural settlements in northern Hainan.

     

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