安徽特有植物鹞落坪半夏生境地群落主要草本种间联结性  

Interspecific association among the main herbaceous species in habitat community of Pinella yaoluopingensis,an endemic species in Anhui

作　　者：欧祖兰[1] 陈延松[1] 王占军[1] 沈章军[1] 王玲玲[1] 齐璐璐[1] 楚爱香[2] 

机构地区：[1]合肥师范学院生命科学学院,安徽合肥230601 [2]河南科技大学林学院,河南洛阳473001

出　　处：《合肥师范学院学报》2016年第3期52-58,共7页Journal of Hefei Normal University

基　　金：安徽省自然科学基金资助项目(1208085MC54)

摘　　要：基于2X2列联表，通过一系列种间关联测定方法（方差比率法检验多物种间总体关联性，X2检验各种对之间的关联性，共同百分率、联结系数和点相关系数测度各种对之间的关联程度）对安徽特有种鹞落坪半夏（Pinellayaoluopin—gensis）生境地群落17个主草本植物种间联结性进行检验与测度。结果表明：鹞落坪半夏生境地群落草本种群的总体关联性表现为不显著负相关，反映了该群落处于不稳定的演替阶段；在136个种对中，仅一年蓬（Erigeronannulus）一待宵草（Oeno—therastricta）为极显著正相关，博落回（Macleayacordata）一鸭跖草（Commelinacommunis）为显著正相关，绝大多数主草本种间的联结关系未达到显著水平，种对间的独立性较强。鹞落坪半夏生境地群落草本种间联结的这种松散性正与群落具有次生性的特点相吻合。Pinella yaoluopingensis is an endemic species in Anhui. Based upon a 2N2 contingency table, a series of techniques were used to analyze the interspecific association among main herbaceous species in habitat community of Pinella yaoluopingensis. The techniques included analysis of variance ratio for the overall association, g--test for testing the property of the interspecific association, and association indices （JI, AC, ） for showing relationship degree of the interspecific association. The results indicated that the overall association of herbaceous species was not significantly negative, suggesting the community was not stable in the phase of active succession~ o{ all 136 species pairs, only Erigeron annuus--Oenothera stricta exhibited very significant positive association and only Macleaya cordata--Comrnelina comrnunis exhibited significant positive association, the other pairs did not show significant interspecific association, reflecting that the main herbaceous species tended to distribute independently. The independence of interspecific association among the main herbaceous species in habitat community of Pinella yaoluopingensis was consistent to the secondary characters of the community.

关 键 词：鹞落坪半夏 群落 草本种群 种间联结 

分 类 号：G61[文化科学—学前教育学]