| 长白山落叶松人工天然混交林空间格局研究 |
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| 引用本文： | 吕林昭.长白山落叶松人工天然混交林空间格局研究[J].内蒙古林业调查设计,2007,30(3):57-62. |
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| 作者姓名： | 吕林昭 |
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| 作者单位： | 北京林业大学资源与环境学院,北京,100083 |
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| 基金项目： | 北京市教委重点实验室课题;北京林业大学研究生自然课题 |
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| 摘 要： | 用点格局分布、混交度和大小比数3个林分空间结构参数,分析了长白山落叶松人工林与天然林木混交的林分空间结构。结果表明:①空间分布:入侵的天然树种呈现明显的聚集分布,落叶松除15m时的聚集分布外均呈现显著的随机分布,林分整体呈现小尺度的聚集分布,在大尺度下呈随机分布。②混交度:林分的混交度为0.84,说明它是一个由不同树种呈现强度混交结构状态组成的复杂森林群落。③大小比数:落叶松占据了优势地位,入侵的天然树种冷杉优势最明显,榆树最不具优势。
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| 关 键 词： | 人工天然混交林 点格局分布 混交度 大小比数 长白山 |
| 文章编号： | 1006-6993(2007)03-0057-06 |
| 修稿时间： | 2007-01-12 |
Studies on Space Patterns of Artificial and Natural Mixed Forest of Larix olgensis |
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| LU Lin-zhao.Studies on Space Patterns of Artificial and Natural Mixed Forest of Larix olgensis[J].Inner Mongolia Forestry Investigation and Design,2007,30(3):57-62. |
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| Authors: | LU Lin-zhao |
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| Institution: | College of Resources and Environment, Beijing Forestry University, Beijing 100083,China |
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| Abstract: | Using the three parameters(point distribution pattern,distribution of mingling and size differentiation) the spatial structure of artificial and natural mixed forest of Larix olgensis in Changbai mountains was analyzed.The results showed that:① Invaded natural species was in gathered distribution,in addition to the 15-meter Larix olgensis was in random distribution,in small-scale forest was in gathered distribution,in large-scale random distribution.② Mixed degree of stands was 0.84,which showed that it is a complicated forest community composed of different species in mixed structure state.③ Larix olgensis occupy a dominant position,advantage of the invaded natural Aiba nephrolepis was the most obvious,Ulmus pumila was the least . |
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| Keywords: | Artificial and natural mixed forest point patterns analysis distribution of mingling size differentiation |
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