福建将乐林场常绿阔叶次生林主要种群种间联结性研究  

Inter-specific correlation of main populations in evergreen broad-leaved secondary forest in Jiangle forest farm

作　　者：罗梅[1] 郑小贤[1] LUO Mei ZHENG Xiaoxian(Key Laboratory for Silviculture and Conservation of Ministry of Education College of Forestry, Beijing Forestry University, Beijing 100083, China)

机构地区：[1]北京林业大学林学院,省部共建森林培育与保护教育部重点实验室,北京100083

出　　处：《西北农林科技大学学报（自然科学版）》2016年第8期135-142,共8页Journal of Northwest A&F University(Natural Science Edition)

基　　金：“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)

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。【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）,χ^2 test,Pearson correlation coefficient and Spearman rank correlation coefficient.【Result】The VR was1.014,indicating that the association of the evergreen broad-leaved secondary forest was weak positive.The interspecific correlations among 231species-pairs of the 22 species showed that 110,77,and 100 speciespairs were positively correlated,while 119,153,and 129species-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 onχ2 test,Pearson correlationcoefficient 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.

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 

分 类 号：S757[农业科学—森林经理学]