【摘要】 帽儿山地区是东北东部山区较典型的天然次生林区。本文利用ARC/INFO软件,对帽儿山林场景观类型最小距离指数和景观连接度指数进行分析,进而对帽儿山林场各景观类型的空间分布规律进行了探讨。结果表明:有林地与无林地的景观连接度有明显差异,无林地的景观连接度普遍大于有林地;天然林的景观连接度都接近于0,景观破碎化程度较高。人工林的最小距离指数低于天然林和非林地;人工林中,人工针叶混交林的距离指数最小,格局接近于团聚分布;天然林的景观格局近于随机分布;非林地中,采伐迹地的距离指数最小,接近于团聚分布。图2参15。更多还原

【Abstract】 Mao抏rshan region is representative in the natural secondary forested region of the eastern mountainous region, northeast China. The landscape nearest neighbor index and landscape connectivity index were calculated with ARC/INFO software for Mao抏rshan region. The spatial distribution of the landscape of the region was analyzed. The results showed that the landscape connectivity index of non-woodland was significantly higher than that of woodland. The landscape connectivity index of natural forest was nearly equal to zero, which means its fragmentation degree is high. The nearest neighbor index of plantation was lower than that of natural forest and non-forestland. Among the man-made forests, the distance index of the co-niferous mixed plantation is the lowest, and its pattern is nearly glomeration. The landscape pattern of natural forest presented nearly random distribution. Among non-forest land, the distance index of cut blank was the lowest, and its pattern was also nearly glomeration.更多还原