湿地资源动态变化的分形研究——以苏北里下河地区湿地资源的动态变化为例

Fractional research on dynamic variation of wetland resources: A case study of wetland resources in Lixiahe region,north of Jiangsu province

介绍了分形理论及其特点、分形维数的计算公式与它的物理意义。以苏北里下河地区湿地资源动态变化为例 ,探讨了分形方法在湿地资源动态变化研究中的应用。里下河地区不同年代沼泽的分形维数表明 ,沼泽的变化最为剧烈 ,稳定性最差 ,即湿地资源的动态变化比较大。

Fractional theory and its characteristics were introduced, so were the computational formula of Fractal dimension and its physical significance. The applications of fractional method on the dynamic variation of wetland resources were investigated, wetland resources in Lixiahe region, north of Jiangsu province, as an example. The fractional dimensions of marshes in Lixiahe region during the different period showed their changes were very severe, and their stability was the poorest one. Basically, the variation of marshes can represent that of wetland because of the very large proportion of marshes in the whole wetland resources in the Lixiahe region.