机构地区: 茂名学院化学与生命科学学院
出 处: 《华南农业大学学报》 2007年第1期77-81,共5页
摘 要: 采用2×2联列表,通过方差比率(VR)、2检验、联结系数(AC)、种间共同出现百分率(PC)和Pearson相关系数r公式对广东石门台自然保护区山顶矮林13个主要乔木进行种间联结性和相关性分析.结果表明:13个乔木种群总体呈不显著的负联结;78对种对中,绝大多数种对联结关系未达到显著水平,种对间的独立性相对较强,相关性较弱,只有15对种对存在较强的相关性,这些可能与群落目前所处的阶段和特殊的生境条件有关. Based on a 2 × 2 contingency table, interspecific association of 13 main tree populations of the montane elfin forest in shimentai Nature Reserve, Guangdong Province, was studied using variance ratio (VR), X^2 text, association coefficient(AC), percentage of co-occurrence(PC), and Pearson r correlation coefficient. The results show that 13 main tree populations are insignificantly negative association in general; most of the total 78 species pairs exhibit no significant association association, obvious independency and weak correlation. Only 15 populations show strong correlation, which may be related to the serial stage of the community and special habitant.
关 键 词: 山顶矮林 石门台自然保护区 乔木种群 种间联结性与相关性
领 域: [生物学]