川续断种群的伴生植物与空间分布格局研究  

Study on associated plants and spatial distribution pattern of Dipsacus asperoides populations

作　　者：陈大霞[1,2,3,4] 易思荣[5] 张雪[1,2,3] 潘媛[1,2,3] 崔广林[1,2,3] 李隆云[1,2,3] 张泽[4] 

机构地区：[1]重庆市中药研究院,重庆400065 [2]重庆市中药良种选育与评价工程技术研究中心,重庆400065 [3]中国中医科学院中药资源中心重庆分中心,重庆400065 [4]重庆大学生命科学学院,重庆400044 [5]重庆市药物种植研究所,重庆404100

出　　处：《中国中药杂志》2017年第12期2261-2268,共8页China Journal of Chinese Materia Medica

基　　金：重庆市"科技平台与基地建设"项目(cstc2014ptyjd10001);国家"十一五"科技支撑计划项目(2006BAI06A11-09);国家科技部科技人员服务企业行动项目(2009GJF10045)

摘　　要：为了解川续断种群的伴生植物状况和掌握其种群分布格局式样,采用样方法对川续断主要自然分布区的32个样地进行群落调查。结果表明:川续断种群的伴生植物种类共有60科131属156种,以菊科、蔷薇科种类较多;伴生植物的种类多,但大部分出现的频率较低;植被类型主要为草本和灌木,占总物种数的77.6%;方差/均值比率的t>t_(0.05),差异显著,表明川续断的分布格局为集群分布;7个聚集强度指数的测定结果也表明川续断种群符合集群分布特点(C>1,K>0,Ca>0,m*>1,m*/m>1,I>0,GI>0)。In order to understand the associated species and the population distribution pattern, the investigation of 32 sample plots- from the main natural distribution area in Dipsacus asperoides community was carried by quadrat method. The results showed that there were 156 species, which belong to 131 genera and 60 families. There were more species in the two dominant families, Asteraceae and Rosaceae. There were many types of associated, but most appeared at a low frequency. The vegetation type were mostly herbaceous and shrub species, which accounted for 77. 6% of the total species. The value of t was greater than t0.05 by methods of variance/mean, showed the difference was significant and the distribution pattern of D. asperoides were cluster distribution. The determination results of seven aggregation intensity index also showed that D. asperoides population accorded with the characteristics of cluster distribution（ C 〉 1,K〉0,Ca〉0,m＊ 〉1,m＊/m〉1,I〉0,GI〉0）.

关 键 词：川续断 植物种类 空间分布格局 集群分布 

分 类 号：S567.239[农业科学—中草药栽培]