土地利用与土地覆被变化的分形分析——以郑汴间沙岗地为例

Fractal Geometry Analysis of Land Use and Land Cover Change ——A Case Study of Sandy-mound Land between Zhengzhou and Kaifeng

文章应用盒子计数法计算了郑汴之间沙岗土地各种土地覆被类型空间分布的分维值,讨论了土地利用与土地覆被变化(LUCC)的分形性质。结果表明,土地利用与土地覆被是一种分形事物。分维是综合表征LUCC空间分布状况的一个特征参数,其值域为0<D<2。分维值越大,表明土地覆被空间分布愈不规则、愈复杂;分维值的变化可以反映出土地利用与土地覆被类型的空间结构在时间维上的变化。

The fractal dimension values of each type of land use and land cover are calculated in sandy_mound land between Zhengzhou city and Kaifeng city, the properties of fractal geometry of land_use and land_cover change (LUCC) are also discussed in this paper. The result indicates that the land use and land cover has statistical self_similarity. Fractal dimension is the characteristic parameter which generally shows the information of LUCC. The threshold of fractal dimension is 0<D<2.Bigger fractal dimension value indicates that the land use and land cover spatial distribution is more irregular and complex.