<正>以南京紫金山风景区1993年和2002年两期森林资源调查成果为主要信息源,在地理信息系统软件Mapinfo6.5的支持下,提取分维数、景观优势度、景观多样性及景观破碎度等景观格局指数对紫金山景区从1993～2002年近10年的景观格局及其动态特征进行了全面分析。结果表明:(1)景观优势度上升而多样性降低并且有林地景观类型始终占优势地位;(2)人为干扰大的景观类型有较小的分形维数;(3)有林地在研究区内呈集群分布而前期灌木林和后期疏林地近似呈随机分布。

Based on the data from forest resources inventory in 1993 and 2002 of Purple mountain in Nanjing ,these indices of Fractal dimension,landscape dominance,diversity and fragment and other indices were extracted and analyzed in this paper under the support of GIS software Mapinfo 6.5,the landscape heterogeneity and the landscape dynamic characteristics were introduced and assessed as well.Results were as follows:(1)Landscape dominance went up but diversity was reduced and the forest land type was absolutely dominant on two occasions.(2)Those landscape types disturbed by more artificial activities had less fractal dimensional values.(3)Under the influence of the environmental heterogeneity and human activities, the distribution pattern of the forest land was the clustering style but the brush and the open forest approximately had the random spatial distribution pattern.