珍稀保护植物十齿花群落灌木种间联结性分析  

Analysis on Interspecific Association among Shrub Species of Rare and Precious Plant Dipentodon Sinicus Communities in Yushe National Forest Park, Guizhou

作　　者：林长松[1] 李玉英[2] 朱万斌[3] 程序[4] 

机构地区：[1]六盘水师范高等专科学校生物与地理科学系,贵州六盘水553004 [2]南阳师范学院生命科学与技术学院,河南南阳473061 [3]中国农业大学生物质工程中心,北京100094 [4]中国农业大学农学与生物技术学院,北京100094

出　　处：《中国农学通报》2008年第3期106-111,共6页Chinese Agricultural Science Bulletin

基　　金：973 课题"农业生物多样性综合应用模式与方法"资助(2006CB100200)

摘　　要：运用方差比率法(VR)、X2检验、种间共同出现百分率(PC)和联结系数(AC)分析了贵州省六盘水市玉舍国家级森林公园十齿花群落20个优势灌木种群的种间联结性。总体关联度检验显示:20个灌木种群构成的190个种对总体上表现为显著的正关联。几项关联检验指标对十齿花群落主要灌木种群之间联结性关系检测结果表明:共同出现百分率PC和联结系数AC反映出的显著关联及完全独立的种对数均比用X2检测所得的种对数多,尤其是显著负联结的种对较为明显,但几种方法检验的结果总体上反映了大致相同的联结趋势;在总的种对数中,正联结种对数略多于负联结,呈显著和极显著关联以及完全独立的种对数所占比率较低,多数种对联结性不显著,趋于独立。Based on the 2 ×2 contingency table, different indices including variance ratio （ VR ）, W-test, X^2-test, association coefficient （A C） and percentage co-occurrence （PC） were used to determine the interspecific associations of the 20 main shrub populations of Dipentodon sinicus community in Yushe National Forest Park of Liupanshui, Guizhou province. The general correlation test showed that the association of the 190 species pairs of the 20 main shrub species showed a significant positive association as a whole. The resuits about the interspecific associations of the main shrub populations of Dipentodon sinicus community tested by the three association indeces, X^2 test, percentage co-occurrence （PC） and association coefficient （ A C）, showed that the significantly associated species pairs and absolutely non-associated species pairs tested by PC and A C were more than that of which tested by X^2- test, especially, the negative association species pairs were of very markedness, whereas the several indeces approximately reflected the same associated trend. At the same time, in the 190 species pairs, the number of positive associated species pairs was slightly more than the the number of negative associated species pairs. On the other hand, the ratio of significantly associated and absolutely non-associated species pares was very low, and mostly showed non-significant association, and, trend to non-associated.

关 键 词：十齿花 优势种群 灌木层 玉舍森林公园 种间联结 

分 类 号：S759.992.7[农业科学—森林经理学]