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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。
Maoer mountain area is the northeastern part of the northeast than the typical natural secondary forest. In this paper, the ARC / INFO software was used to analyze the minimum distance index and landscape connectivity index of the landscape of Maoershan Forest Farm, and then the spatial distribution of various landscape types in Maoershan Forest Farm was discussed. The results showed that there was a significant difference in the degree of landscape connection between the forestland and the non-forestland. The landscape connection of the forestland was generally larger than that of the forestland. The landscape connectivity of the natural forest was close to zero and the landscape fragmentation was relatively high. The minimum distance index of artificial plantation is lower than that of natural forest and non-forest land. In artificial plantation, the distance index of artificial coniferous mixed forest is the smallest, and the pattern is close to reunion distribution. The landscape pattern of natural forest is near random distribution. In non-forest land, The distance index is the smallest, close to the reunion distribution. Figure 2 reference 15.