土地利用变化信息挖掘方法及其应用

Method for information mining of land-use change and its applicaion

以基本分辨率硬分类条件下的土地利用转换矩阵为基础,构建了土地利用净变化量、交换变化量、总变化量计算方法,通过土地利用类型间实际转换量与其理论频数的对比,构建了土地利用转换规则的挖掘方法;以多分辨率软分类方法为基础建立了土地利用交换变化距离的分析方法。应用上述方法对北京市海淀区土地利用变化进行了分析,应用表明上述方法可以有效挖掘各土地利用类型变化信息、土地利用类型间转换规则和土地利用交换变化的空间距离信息,可以为土地利用空间分析和建模提供有用信息。

Methods for land-use net change, swap based on land-use transformation matrix with the differences between the observed transition and its change, total change information assessing were constructed crisp land-use classification scheme. Analysis of the relative expected transition percent of assumed random transition can extract the clearly systematic inter-category transition. A multiple resolution and soft land-use classification algorithm provides additional information about space distance over which the swap change occurs. These methods were used in the 1991～ 2001 land-use change analyses in Haidian district, Beijing. The application shows that these methods enable land-use researchers to find the systematic land-use transition information, which can be useful in land-use change analyses and modeling.