Fractal Dimension Analysis of Land Use Types
土地利用用类型的分数维分析

Based on fractal geometry method and land use graphics database, this paper describes an algorithm for fractal dimension of land use types. The algorithm is a fractal dimension expression about area and perimeter. And this algorithm is applied to analyze the change feature of land use types. The experimental results indicate that fractal dimension ( D ) values vary from 1 to 2 and the certain land use types is associated with the fractal dimension D . The D of land use types reflects the degree of complexity, stability and change tendency of land use change. When the value of D is 1.5, namely D is critical value; the change mode of land use types is Brown random movement. The more the value of D is closer to the critical value, the more the stability of land use type is worse, and the complexity of land use type is higher; verse vice. Moreover, the D change or certain land use type reflects the change tendency of this type in different time periods. When the D of certain land use type increases, its area also increases; verse vice, its area decreases. The experiment has been done and supports this conclusion.