天然格氏栲林乔木层种群种间关联性研究  

STUDY ON THE INTER-SPECIFIC ASSOCIATION OF SPECIES IN THE VEGETATION LAYER IN CASTANOPSIS KAWAKAMII FOREST

作　　者：刘金福[1] 洪伟[1] 樊后保[1] 林荣福[1] 

机构地区：[1]福建林学院资源与环境系,南平353001

出　　处：《林业科学》2001年第4期117-123,共7页Scientia Silvae Sinicae

基　　金：福建省教委科学基金资助项目 (K2 0 0 43 )

摘　　要：A series of techniques including the analysis of variance,χ2-test,association coefficient,Ochiai′s coefficient,Czekanowski′s coefficient and Jaccard′s coefficient were used based upon a 2×2 contingency table to determine the overall association of all species,the statistical significance and the coefficient of the each species-pair association of the 48 dominant species in the vegetation layer in \%C.kawakamii\% forest.The results showed the inter-specific association of dominant species in the layer in \%C.kawakamii\% forest can be adequately interpreted by using the techniques mentioned above.The overall association of all species is significantly positive.By \%AC\% values analyzed,464 species-pair are positive and 655 species-pair are negative,and the others are fully independent.1128 species-pair were checked by χ2-test,in which 27 species-pair were observed to have significant positive association at \%P\%=0.01,18 species-pair at \%P\%=0.05 and 17 species-pair revealed significant negative association at \%P\%=0.01,94 species-pair at \%P\%=0.05.The results still showed only 5 species,such as,\%C.tibetana,S.tzumu,C.fabri,C.subavenium\% and \%H.fragrans,\%are significantly negatively related with C.kawakamii,which is relatively weak with the other majority species in the layer in \%C.kawakamii forest.A series of techniques including the analysis of variance,χ2-test,association coefficient,Ochiai′s coefficient,Czekanowski′s coefficient and Jaccard′s coefficient were used based upon a 2×2 contingency table to determine the overall association of all species,the statistical significance and the coefficient of the each species-pair association of the 48 dominant species in the vegetation layer in \%C.kawakamii\% forest.The results showed the inter-specific association of dominant species in the layer in \%C.kawakamii\% forest can be adequately interpreted by using the techniques mentioned above.The overall association of all species is significantly positive.By \%AC\% values analyzed,464 species-pair are positive and 655 species-pair are negative,and the others are fully independent.1128 species-pair were checked by χ2-test,in which 27 species-pair were observed to have significant positive association at \%P\%=0.01,18 species-pair at \%P\%=0.05 and 17 species-pair revealed significant negative association at \%P\%=0.01,94 species-pair at \%P\%=0.05.The results still showed only 5 species,such as,\%C.tibetana,S.tzumu,C.fabri,C.subavenium\% and \%H.fragrans,\%are significantly negatively related with C.kawakamii,which is relatively weak with the other majority species in the layer in \%C.kawakamii forest.

关 键 词：格氏栲林 乔木层 种群 种间联结 天然林 

分 类 号：S792.17[农业科学—林木遗传育种] S718.54[农业科学—林学]