基于分形理论的福州市土地利用空间格局变化研究

以福州市为例，在遥感和GIS技术的支持下，运用分形理论对土地利用空间格局的变化进行了研究．首先对福州市1988年的TM和2004年的ASTER影像进行解译，然后利用分形模型，计算出1988年和2004年各个地类的分维数和稳定性指数，对土地利用空间格局变化进行了定量分析．结果表明：福州市各土地利用类型的分布具有分形结构，其中耕地、林地形态复杂程度上升，建设用地形状趋向简单化；水域一直比较稳定，耕地和林地稳定性都有不同程度的下降，建设用地稳定性从1988年的最不稳定变化到2004年的最稳定．

Landscape Pattern Change Research of Land Use in Fuzhou City Based on Fractal Theory

Taking Fuzhou City as an example, a statistical fractal analysis was made of distribution of land use type. In this paper the land use classification information was extracted from the landsat TM imagery of Fuzhou of 1988's and ASTER imagery of 2004's firstly, supported by the techniques of RS and GIS. The fractal dimensions and stability indexes of spatial structure of different land types are calculated. The results showed that the distribution of land use type in Fuzhou City has the fractal properties; the complexity of arable land and forest land ascended, the shape of build-up land was simplifying;the water land was the most stable in all land use type,the stability of arable land and forest land both had different degree to descend, however the stability of build-up has been turned from the most unsteady in 1988 to the most stable condition in 2004.