| 长白山杨桦次生林不同演替阶段林木空间分布格局研究 |
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| 引用本文： | 贺燕1,张青1,张梦弢1,徐光2,杨英军2. 长白山杨桦次生林不同演替阶段林木空间分布格局研究[J]. 西北林学院学报, 2015, 30(1): 8-13. DOI: doi:10.3969/j.issn.1001-7461.2015.01.02 |
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| 作者姓名： | 贺燕1 张青1 张梦弢1 徐光2 杨英军2 |
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| 作者单位： | （1.北京林业大学，北京 100083；2.汪清林业局，吉林 延吉 133200） |
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| 摘 要： | 运用点格局分析中的单变量和双变量O-ring统计方法, 分别分析了长白山杨桦次生林不同演替阶段林分全体树种和先锋树种的空间分布格局及不同演替阶段先锋树种和顶级树种间的空间关联性。结果表明，随着演替的进行，林分全体树种的空间分布格局由聚集分布过渡为随机分布，先锋树种的空间分布格局由聚集分布变为随机分布。先锋树种和顶级树种的种间关系由演替早期的正关联到演替后期变为负关联。
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| 关 键 词： | 杨桦次生林 空间格局 种间关联 O-ring统计 |
Spatial Distribution Patterns of Polar-birch Secondary Forest in Different Succession Process Stages in Changbai Mountain |
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| HE Yan1,ZHANG Qing1,ZHANG Meng-tao1,XU Guang2,YANG Ying-jun2. Spatial Distribution Patterns of Polar-birch Secondary Forest in Different Succession Process Stages in Changbai Mountain[J]. Journal of Northwest Forestry University, 2015, 30(1): 8-13. DOI: doi:10.3969/j.issn.1001-7461.2015.01.02 |
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| Authors: | HE Yan1 ZHANG Qing1 ZHANG Meng-tao1 XU Guang2 YANG Ying-jun2 |
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| Affiliation: | （1. Beijing Forestry University, Beijing 100083, China；2.Wangqing Forestry Bureau, Wangqing, Jilin 133200, China） |
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| Abstract: | The univariate O-ring function statistic was used to analyze the spatial patterns of all species and pioneer species in polar-birch secondary forest in different succession process stages in Changbai Mountain. The bivariate O-ring function statistic was used to analyze the spatial correlations among pioneer species and climax species. The results showed that along with the succession, spatial pattern of all species changed from a clumped to a random distribution, and the spatial pattern of the pioneer species changed from a clumped distribution to a random distribution. Interspecies of pioneer species and climax species changed from positive association to negative association during this succession. |
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| Keywords: | polar-birch secondary forest spatial distribution pattern interspecies association O-ring function |
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