基于GIS的城郊土地利用类型分形研究——以南充市新复乡为例

Fractal Analysis of Suburban Land Use Types Based on GIS——Taking Xinfu Township in Nanchong as an Example

应用GIS技术及分形理论,以四川南充新复乡为研究区,将土地利用类型划分为耕地、林地、园地、工矿住宅用地、坑塘水域、公路用地、其他用地(含裸地)七大类,并进行各土地利用类型图斑分形维数及稳定性分析。结果表明:新复乡土地利用类型具有分形结构,各土地利用分形维数在1.08～1.27,稳定性指数在0.22～0.42,由小到大依次为耕地、其他用地、林地、园地、坑塘水域、公路用地。

Using GIS technology and fractal theory, taking Xinfuxiang, Nanchong, Sichuan as the research area, the land use types were divided into seven categories： cultivated land, forest land, garden land, industrial and mining residential land, pit and pond water area, highway land and other land （including bare land）, and the fractal dimension and stability of land use maps were analyzed. The results showed that the land use types of Xinfuxiang possessed the fractal structure, the fractal dimension of each land use was 1.08- 1.27, and the stability index was 0.22 0.42. From small to large, the order was cultivated land, other land, forest land, garden land, pit and pond water area, and highway land.