地理图形信息分析方法及其在土地利用研究中的应用

The geographic graphic information analysis method and its application for land use study

在地理信息系统技术支持下 ,运用景观生态学理论和分形理论 ,以吉林省长岭县为例 ,抽象归纳了土地利用斑块及其空间格局的描述参数 (包括分维数、形状指数、分离度指数等 ) ,并对其进行了测量 .分析表明 :土地利用图斑的几何形状与土地利用类型及其空间格局具有很好的相关性 ,利用图斑的几何形状特点可以揭示土地利用变化的驱动机制 .

This paper, based on landscape ecology theory and fractal theory etc., analyses the graphic information for land use pattern and its change using GIS technology. The study area was Changling County in Jilin Province. Fractal dimension of patches, shape index and isolation index were measured to master the land use spatial pattern in Changling County. It was found that there was fine pertinence between the shape of land use patch and land use type or its spatial pattern. So it could say that studying the patch shape of land use type would contribute to the land use change driven mechanism research.