| 摘要: |
| 【目的】研究福建省将乐国有林场常绿阔叶次生林主要种群间的联结性，为探索植物群落演替及原生性植被类型的恢复提供依据，为该林场常绿阔叶次生林的可持续经营提供参考。【方法】采用样地调查法，在福建将乐林场选取重要值较大的22个树种，利用种间联结指数VR研究群落的整体关联性；利用χ2检验、Pearson相关系数检验、Spearman秩相关系数检验分析种对间的联结性。【结果】该林场常绿阔叶次生林种间联结指数VR为 1.014，主要种群总体呈现较弱的正关联。231个种对中，χ2检验结果显示，正、负关联的种对数分别为110和119对，正负关联种对数的比值为0.924；显著和极显著相关种对数占总数的11.3％。Pearson相关系数检验结果表明，正、负相关的种对数分别为77和153对，正负关联种对数的比值为0.503；显著和极显著相关的种对数占总数的7.4％。Spearman秩相关系数检验结果表明，正、负相关的种对数分别为100和129对，正负关联种对数的比值为0.775；显著和极显著相关的种对数占总数的13.9％。【结论】福建将乐林场的常绿阔叶次生林总体联结程度较小，22个主要树种种对间关系以负相关较多，种间关联性不明显，主要种群独立出现的概率较大。 |
| 关键词: 常绿阔叶次生林 种间联结性 种间联接指数 Pearson相关系数 Spearman秩相关系数 |
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| 基金项目:“十二五”国家科技支撑计划项目“南方集体林区生态公益林可持续经营技术研究与示范”（2012BAD22B05） |
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| Inter-specific correlation of main populations in evergreen broad-leaved secondary forest in Jiangle forest farm |
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LUO Mei,ZHENG Xiaoxian
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| Abstract: |
| 【Objective】In this study,the correlations of species in evergreen broad-leaved secondary forest in Jiangle forest farm were analyzed to provide basis for the recovery and sustainable management of evergreen broad-leaved secondary forest.【Method】Plot investigation was applied to 22 species with large importance values and interspecific associations and correlations were analyzed using variance ratio (VR),χ2 test,Pearson correlation coefficient and Spearman rank correlation coefficient.【Result】The VR was 1.014,indicating that the association of the evergreen broad-leaved secondary forest was weak positive.The interspecific correlations among 231 species pairs of the 22 species showed that 110,77,and 100 species pairs were positively correlated,while 119,153,and 129 species pairs had negative correlations.The ratios of positive and negative correlations were 0.924,0.503 and 0.775,and the ratios of distinctly significant and significant positive correlations were 11.3％,7.4％,and 13.9％,based on χ2 test,Pearson correlation coefficient test,and Spearman rank correlation coefficient test,respectively.【Conclusion】The negative correlations were more than positive correlations in species pairs of 22 species,and the ratio of significant correlations was small,suggesting that the correlations of the 22 species were weak. |
| Key words: evergreen broad-leaved secondary forest interspecific correlation variance ratio Pearson correlations coefficient Spearman rank correlation coefficient |
