山西五鹿山自然保护区暴马丁香群落木本植物种间联结性分析  

Inter-Specific Correlations among Dominant Populations of Woody Syringa reticulata Communities in Wulu Mountain Nature Reserve,Shanxi Province of China

作　　者：杨兆静[1] 张钦弟[1] 李豪[1] 白玉宏[1] 毕润成[1] 

机构地区：[1]山西师范大学生命科学学院,山西临汾041004

出　　处：《植物科学学报》2013年第1期42-48,共7页Plant Science Journal

基　　金：山西省重点学科建设项目(912019)

摘　　要：通过方差分析,χ2检验、Pearson相关系数和Spearman秩相关系数检验,采用2×2列联表对五鹿山暴马丁香林中频度较高的34个木本植物优势种,561个种对间的关联性进行了研究。分析结果表明:34个优势种种间总体关联性呈现不显著负关联,表明该群落处于不稳定的顶级状态。χ2检验结果中,有216个种对呈正相关,345个种对呈负相关,正负关联比为0.626;Pearson相关系数检验结果为:149个种对呈正相关,412个种对呈负相关,正负关联比为0.362;Spearman秩相关系数检验结果为:206个种对呈正相关,365个种对呈负相关,正负关联比为0.564;Spearman秩相关系数比Pearson相关系数的检验方法灵敏度更高。We selected 34 dominant species according to frequency and studied interspecific associations and correlations using variance ratio （VR） analysis of the overall association and xCtest,Pearson correlation coefficient and Spearman rank correlation coefficient based on 2x2 contingency tables of species presence/absence data. No significant negative correlations were observed among the 34 dominant species, which suggested that the forest was not sta- ble. Interspecific correlations among 561 species-pairs of the 34 dominant species showed that 216,149 and 206 species-pairs were positively correlated,345,412 and 365 species-pairs were negatively correlated,and the positive and negative correlation ratios were O. 626,0. 362 and 0. 564, based on x2-test for 2x2 contingency table. Spearman rank correlation was more sensitive than the Pearson correlation.

关 键 词：暴马丁香群落 种间关联 方差比率 2×2联列表 相关检验 五鹿山自然保护区 

分 类 号：Q948[生物学—植物学]