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确定林分空间结构是次生林保护和可持续经营的前提.次生针阔混交林是张广才岭最主要的林分类型,运用大小比数、角尺度、混交度3个空间结构参数研究张广才岭次生针阔混交林永久样地的空间结构.结果表明:样地大小比数为0.497,平均角尺度为0.538,平均混交度为0.630;针阔混交林林木相邻个体在垂直方向上分化不明显,存在激烈竞争的中层;林木配置处于中度到强度混交水平之间,林分总体上属于聚集分布格局;次生针阔混交林的空间结构特征已接近当地原始阔叶红松林水平.
The secondary structure of secondary coniferous and broadleaf forest was identified as the main stand type of forest in Zhangguangcailing.The spatial structure parameters of size, angle and degree of mixing were used to study the spatial distribution of stand width Coniferous and broad-leaved mixed forest.The results showed that the ratio of the sample size was 0.497, the average angular dimension was 0.538 and the average degree of mixing was 0.630.The adjacent individuals in the mixed coniferous-broad-leaved forest did not differentiate vertically , There is intense competition in the middle; the distribution of trees is in a moderate to intensive mixed level, and the stands are generally aggregated and distributed; the spatial structure of the secondary coniferous and broad-leaved mixed forest is close to the level of the native Korean pine broad-leaved forest.