摘要
在2×2联列表的基础上,应用方差比率VR、种间联结系数AC以及χ2检验统计量测算了檫树群落中主要树种种间的联结性。结果表明,檫树群落主要树种间的总体联结性表现为负联结,大部分种对间的联结性为负联结,190个种对中,有3个种对的正联结具有显著性,97个种对的负联结达到显著性,90个种对的联结性未达到显著程度。
Based on a 2 × 2 contingency table, indices including variance ratio （ VR ）, association coefficient （AC）and test were used to determine the interspecific association of dominant species in Sassafras tzumu community. The results indicated that the overall association of the dominant tree species was negative and most of species pairs showed negative association. Among the 190 species pairs ,3 pairs reached significant positive association, 97 reached significant negative association and 90 didn＇t reach.
出处
《林业科技开发》
2006年第4期24-27,共4页
China Forestry Science and Technology
基金
福建省自然科学基金重大项目资助(2001F007)
关键词
檫树
群落
种间联结
Sassafras tzumu
Community
lnterspecific association
