基于RS的区域土地利用空间结构特征分析

为了定量分析邯郸市土地空间结构在空间上的分异规律，采用区域土地利用类型多样化程度指数、土地利用程度综合指数、生物丰度指数及植被覆盖指数，从土地利用景观及生态结构2方面着手，借助1 km×1 km网格进行空间表达，阐述了2006年邯郸市土地利用空间结构特征。结果表明：2006年，邯郸市土地利用类型齐全，土地利用/覆盖多样化指数和土地利用程度指数呈现从中部及东南部向四周辐射状降低的趋势；邯郸市土地利用结构呈现出林地聚集分布于西部山区，耕地呈环绕状分布于东南部地区，城镇住宅用地呈饼状分布，农村住宅用地呈现星罗点状分布，交通用地呈现条带及换代分布等特征；邯郸地区生物丰度指数及植被覆盖指数分布具有空间一致性，同时呈现出从中部城镇聚集区向四周边缘地区递减的趋势。

Analysis on Spatial Structural Characteristics of Land Use of Region Based on RS

In order to quantify the spatial variability of land use structure in Handan, from landscape and ecological points of view. The author expounded spatial structure characteristics of land use of Handan, and a series of indexes, such as GibbsMartin diversity index, land use intensity index, biological abundance index and vegetation cover index were applied to analyze the spatial structure characteristics of land use for the year 2006. These indexes were all gridded with 1 km x 1 km cells to detect spatial heterogeneity. The results showed that land used category of Handan was complete in 2006. The land use cover diversity index and the land use extent index turned out to be gradually decreasing from the middle regions and eastsouth regions to the round region in radial trend. The land use structure showed that： the woodland almost gathered in the west mountain area, the cultivated field mainly be distributed in east-south area in ring station, the urban land mainly be scattered in middle region in caky station, the country land unorganized around the town; the study also found that the change trend of biological abundance index was same as the change trend of vegetation cover index, they both showed the degressive trend from center region to fringe region.