| 叶山林场常绿阔叶混交林林分空间结构研究 |
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| 引用本文： | 李杰,黄庆丰,郑小贤.叶山林场常绿阔叶混交林林分空间结构研究[J].林业资源管理,2012(6):57-60. |
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| 作者姓名： | 李杰 黄庆丰 郑小贤 |
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| 作者单位： | 1. 北京林业大学森林资源与环境管理国家林业局重点实验室,北京,100083
2. 安徽农业大学林学与园林学院,合肥,230036 |
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| 基金项目： | "十二五"国家科技支撑计划"南方集体林区生态公益林可持续经营技术研究与示范" |
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| 摘 要： | 结合试验地调查以及林分内树种组成,利用混交度(M)、大小比数(U)和角尺度(W)3个林分结构参数,分析了叶山林场常绿阔叶混交林林分空间结构。结果表明:该林分平均混交度为0.371 8,主要树种麻栎多呈单种聚集,其余树种中强度混交比例达到96%;平均大小比数为0.493 6,在林分空间配置上,马尾松处于优势状态,其余树种分化严重;平均角尺度为0.518 9,混交林的分布格局基本上以团状分布为主。
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| 关 键 词： | 常绿阔叶混交林 空间结构 角尺度 混交度 大小比数 |
Analysis on the Spatial Structure of the Evergreen Broad-leaved Mixed Forest in Yeshan Forest Farm |
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| LI Jie
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HUANG Qingfeng
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ZHENG Xiaoxian.Analysis on the Spatial Structure of the Evergreen Broad-leaved Mixed Forest in Yeshan Forest Farm[J].Forest Resources Management,2012(6):57-60. |
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| Authors: | LI Jie HUANG Qingfeng ZHENG Xiaoxian |
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| Affiliation: | 1(1.State Forestry Administration Key Laboratory of Forest Resources and Environmintal Management,Beijing Forestry University,Beijing 100083;2.Faculty of Forest and Landscape in Anhui Agriculture University,Hefei 230036,China) |
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| Abstract: | Based on experimental investigation and species composition,stand spatial structure of evergreen broad leaved mixed forest was investigated by using three structure parameters(mingling,neighborhood comparison,and uniform angle index-neighboring tree distribution pattern).The results showed that the average stand of mixed is 0.3718,main tree species-Quercus acutissima mostly single gathered,the mixed proportion of remaining species about 96%.The average neighborhood comparison is 0.4936,P.massoniana in a dominant state and the rest of the species differentiation seriously on the stand spatial configuration.Average neighborhood pattern is 0.5189,the stands were found to be a clumped distribution in this community. |
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| Keywords: | evergreen broad leaved mixed forest spatial structure neighborhood pattern mingling neighborhood comparison |
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