贵州习水自然保护区丝栗栲群落主要种群种间联结性研究  

Study on the interspecific association of dominant plant populations of Castanopsis fargesii community in Xishui Nature Reserve of Guizhou

作　　者：王艳芳[1] 谢双喜[1] 张磊[1] 

机构地区：[1]贵州大学林学院,贵州贵阳550025

出　　处：《广东农业科学》2011年第6期168-171,共4页Guangdong Agricultural Sciences

摘　　要：采用2×2列联表,通过χ2检验和W检验,并结合共同出现百分率(PC值)和联结系数(AC值),分析了丝栗栲所在群落20个主要树种的种间联结性。结果表明:20个主要树种的总体种间关联性呈不显著的正相关;190个种对中,只有少数种对存在显著的相关性,大多数种对联结关系未达到显著水平,种对间相关性较弱,独立性相对较强。反映该群落处于演替阶段。Based on 2×2 contingency table and with χ2 and W-tests,together with the cooccurrence percentage（PC） and the association coefficient（AC）,the interspecific associations of 20 dominant tree species in the communities of Castanopsis fargesii were studied.The results showed that there existed insignificantly positive correlation among the 20 dominant populations.Among 190 species pairs,only a few species pairs reached significant association,and most of species pairs didn＇t reach significant level,indicating that a relatively weak correlation and a relatively strong independent existed among these species pairs.Based on the results,it might be inferred that the community was at a successional stage.

关 键 词：丝栗栲 群落 主要树种 种间联结 习水自然保护区 

分 类 号：S718.54[农业科学—林学]