文献类型：期刊文献

中文题名：南岭石坑崆山顶矮林乔木优势种群的种间关联性

英文题名：Interspecific associations among dominant tree populations in an elfin forest community in Shikengkong of Nanling Mountains,China

作者：胡文强[1] 黄世能[1] 李家湘[2] 周光益[1] 王旭[1]

第一作者：胡文强

机构：[1]中国林业科学研究院热带林业研究所;[2]中南林业科技大学

年份：2013

卷号：32

期号：10

起止页码：2665-2671

中文期刊名：生态学杂志

外文期刊名：Chinese Journal of Ecology

收录：CSTPCD;;Scopus;北大核心:【北大核心2011】；CSCD:【CSCD2013_2014】；

基金：中国林业科学研究院中央级公益性科研院所基本科研业务费专项(CAFYBB2008004);广东省林业科技创新示范工程专项(2008KJCX012-02)资助

语种：中文

中文关键词：矮林;种间联结;2×2联列表;相关检验

外文关键词：elfin forest; interspecific association; 2×2 contingency table; correlation test.

分类号：S963

摘要：南岭石坑崆分布着典型的山顶矮林植被，该群落乔木层中优势物种之间的作用关系未见报道。本文采用2×2联列表，通过方差分析、关联指数、χ2检验、Pearson指数和Spearman秩相关检验，对该区山顶矮林乔木层中的重要值较高的16个优势种群、120个种对间的关联进行定量研究。方差分析表明，16个优势种群的总体种间关联性呈显著正相关，反映该群落处在较稳定的顶极群落阶段。χ2检验有66种对呈正相关，54种对呈负相关,正负关联比为1.22；Pearson相关系数检验有65种对呈正相关，55种对呈负相关，正负关联比为1.18；Spearman秩相关检验有64种对呈正相关，56种对呈负相关，正负关联比为1.14。关联指数说明该群落中大多数种对的关联程度低。120个种对中，绝大多数种对的联结关系未达到显著水平，种对间的独立性较强，这种种间联结的松散性可能与群落目前发展阶段及物种本身的生态学特性有关，该群落正处在稳定的顶极阶段。
There distributes typical elfin forest community in Shikengkong of Nanling Mountains, but little is known about the interspecific relationships between the dominant tree species in the community. By using 2×2 contingency table, variance analysis, association index, χ2text, Pearson＇s correlation coefficient, and Spearman＇s rank correlation test, this paper quantitatively studied the interspecific associations of 120 species pairs of 16 dominant tree populations with higher importance value. The results of variance analysis showed that there existed significant positive correlations among the 16 dominant species, suggesting that this community was at a more stable climax stage. The χ2 test illustrated that there were 66 species pairs in positive association, and 54 species pairs were in negative association, with the ratio of positive to negative association being 1.22. The Pearson＇s correlation coefficient test displayed that 65 species pairs were in positive association, and 55 species pairs were in negative association, with the positive/negative association ratio being 1.18. The Spearman＇s rank correlation coefficient test reflected that 64 species pairs were in positive association, while 56 species pairs were in negative, with the positive/negative association ratio being 1.14. The association index showed that most species pairs had lower degree of association. Among the 120 species pairs, most pairs did not show significant association, which could be due to their ecological characteristics and the seral stage of the community. This forest community was at the late-successional stage and quite stable.