摘要
根据2×2联列表,运用方差分析、联结系数AC、x2统计量度量、Ochiai指数、Dice指数和Jaccard指数计算了支提山突脉青冈天然林主要树种的总体联结关系、种间联结系数和x2值。研究结果表明:突脉青冈天然林多物种总体联结性为不显著的正相关,AC值计算出正联结种对有152对,负联结170对;x2统计量检验结果无呈现显著的正联结,12对呈现极显著的负联结,93对呈现显著的负联结。
The research results showed that Cyclobalanopsis elevaticostata natural forest multi-species population coupling was the positive correlation without evidence, 152 pairs of positive coupling species, 170 pairs of negative coupling species were calculated by AC value; X^2 statistic test result didn＇t assume evident positive coupling, 12 pairs assumed extremely evident negative coupling, 93 pairs assumed evident negative coupling.
出处
《福建林业科技》
北大核心
2005年第4期73-76,85,共5页
Journal of Fujian Forestry Science and Technology
关键词
支提山
突脉青冈
天然林
乔木层
种间联结
Mountain Zhiti
Cyclobalanopsis elevaticostata
natural forest
arbor layer
coupling between species
