| 华北油松林油松种群的空间分布格局 |
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| 引用本文： | 张赟,赵秀海,张春雨.华北油松林油松种群的空间分布格局[J].东北林业大学学报,2009,37(11). |
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| 作者姓名： | 张赟 赵秀海 张春雨 |
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| 作者单位： | 省部共建森林培育与保护教育部重点实验室(北京林业大学),北京,100083 |
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| 摘 要： | 以内蒙古黑里河、北京松山及山西太岳山的油松林监测样地为对象,分析了油松(Pinus tabulaeformis)种群的空间分布格局,探讨了油松不同生长阶段(幼树、小树和大树)之间的空间关系.结果表明,黑里河、松山、太岳山样地中胸径≥1cm的油松种群密度分别为1741、467和722株/hm~2.3块样地中油松种群具有一致的空间分布格局,主要呈聚集分布.随着油松种群发育(幼树→小树→大树),聚集强度逐渐减弱甚至趋向于随机分布,一定程度上体现了油松种群的生存策略及其适应机制.不同生长阶段之间的空间关联性受油松植株大小影响,大小差异越小彼此间的空间关联性则越大.
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| 关 键 词： | 油松种群 点格局分析 空间尺度 空间格局 空间关联 |
Spatial Distribution Pattern of Pinus tabulaeformis Populations in North China |
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| Zhang Yun,Zhao Xiuhai,Zhang Chunyu.Spatial Distribution Pattern of Pinus tabulaeformis Populations in North China[J].Journal of Northeast Forestry University,2009,37(11). |
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| Authors: | Zhang Yun Zhao Xiuhai Zhang Chunyu |
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| Institution: | Zhang Yun,Zhao Xiuhai,Zhang Chunyu(Key Laboratory for Silviculture , Conservation,Ministry of Education(Beijing Forestry University),Beijing 100083,P.R.China) |
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| Abstract: | Three Pinus tabulaeformis plots along latitude from north to south(Heilihe Natural Reserve of Inner Mongolia,Songshan Natural Reserve of Beijing,Taiyueshan Research Station of Shanxi Province) were built in north China in 2007.Spatial pattern and spatial association of P.tabulaeformis at different growth stages were discussed based on Ripley's K-function.Among the three plots,Heilihe had the highest density of tree stem and owned the most abundant seedlings and saplings,while Songshan had the lowest stem de... |
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| Keywords: | Pinus tabulaeformis populations Point pattern analysis Spatial scales Spatial patterns Spatial associations |
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