贵州佛顶山篦子三尖杉群落主要树种种间关系与稳定性  

Interspecific Association and Stability of Main Tree Species of Cephalotaxus Oliveri Communities in Fodingshan of Guizhou Province

作　　者：王琨 安明态[1,2] 金勇[1,2] 汪伟 周胜伦[3] 张廷碧 Wang Kun;An Mingtai;Jin Yong;Wang Wei;Zhou Shenglun;Zhang Tingbi(College of Forestry,Guizhou University,Guiyang 550025,China;Research Center for Biodiversity and Nature Conservation,Guizhou University,Guiyang 550025,China;Fodingshan National Nature Reserve Administration of Guizhou Province,Shiqian 555100,China)

机构地区：[1]贵州大学林学院,贵州贵阳550025 [2]贵州大学生物多样性与自然保护研究中心,贵州贵阳550025 [3]贵州佛顶山自然保护区管理局,贵州石阡555100

出　　处：《南京师大学报（自然科学版）》2022年第4期74-80,共7页Journal of Nanjing Normal University(Natural Science Edition)

基　　金：贵州佛顶山国家级自然保护区珍稀濒危植物调查与监测项目(2018-01);中央财政专项与贵州省配套专项“贵州省第二次全国重点保护野生植物资源调查”项目([2012]87号).

摘　　要：为探究贵州佛顶山国家级自然保护区篦子三尖杉的群落结构特征,采用方差比率法、χ^(2)检验统计量、联结系数(AC)、Pearson积矩相关系数和Spearman秩相关系数分析群落内重要值前10的灌木种群种间联结和种间协变关系,并使用M.Godron法分析其稳定性.结果表明:(1)篦子三尖杉是群落中重要值最大的种群,占据重要地位.(2)10个主要树种间总体呈不显著正联结,种对间关联性较弱.(3)油茶与篦子三尖杉呈显著负协变,两种群间存在一定竞争关系.(4)M.Godron分析得到的坐标交点(37.98,62.02)远离稳定点(20,80),表明该群落呈不稳定状态.因此,建议适当对与篦子三尖杉呈显著负协变的树种进行抚育间伐等措施,以增加其生存空间,促进种群更新.In order to explore the structure of Cephalotaxus oliveri community in Guizhou Fodingshan National Nature Reserve,10 shrub-layer species on the basis of importance values,and quantitatively researched interspecific associations and correlations were selected by using a set of methods,namely,variance ratio analysis,χ^(2) test,association coefficient(AC),Pearson’s correlation coefficient test,Spearman’s rank correlation coefficient test.In addition,the level of community stability was tested by using the Godron stability analysis.The results were as follows,(1)Cephalotaxus oliveri occupied an important position in the community.(2)There was no significant positive association among the 10 main tree species,and the correlation between species pairs was weak.(3)There was a competitive relationship between Camellia oleifera and Cephalotaxus oliveri,showing a significant negative covariance.(4)The coordinate intersection(37.98,62.02)obtained by M.Godron analysis was far from the stable point(20,80),indicating that the community was in an unstable state.Therefore,it is suggested to take measures such as thinning and rearing of tree species with significant negative covariant with grate appropriately,so as to increase its living space and promote population regeneration.

关 键 词：篦子三尖杉 种间联结 种间协变 群落稳定性 佛顶山 

分 类 号：Q948[生物学—植物学]