北京市自然保护区景观格局分析

Analysis on nature reserves landscape pattern in Beijing

基于北京市自然保护区分布图,在地理信息系统软件ArcGIS和景观分析软件FRAGSTATS的支持下,从斑块面积、周长-面积比、Shannon均匀度指数、散布与并列指数、相似邻近百分比、蔓延度、连接度7个景观指数的角度,对北京市自然保护区的景观格局进行分析。结果表明,北京市自然保护区面积差异较大,形状比较稳定,分布均匀程度不高,团聚程度较高。

Based on the map of nature reserves in Beijing, fragstats software and GIS, this study analyzed the nature reserves landscape pattern in Beijing. In the analysis, seven landscape indexes were used, including patch area, perimeter-area ratio, Shannon＇s evenness index, interspersion-juxtaposition index, proportion of like adjacency, contagion and aggregation index. The results showed that the area of nature reserves in Beijing had big differences, with stable shape, non-even distribution and strong aggregation .