珍稀濒危植物中甸刺玫种群结构与空间分布格局研究  

Population Structure and Spatial Distribution Pattern of Endangered Species Rosa praelucens

作　　者：潘丽蛟 关文灵[2] 李懿航 PAN Li-jiao;GUAN Wen-ling;LI Yi-hang(Asset management office,Kunming Medical University,Kunming 650201,Yunnan China;College of Landscape and Horticulture,Yunnan Agricultural University,Kunming 650201,Yunnan China;Logistics management office,Kunming Metallurgy College,Kunming 650201,Yunnan China)

机构地区：[1]昆明医科大学资产管理处,云南昆明650201 [2]云南农业大学园林园艺学院,云南昆明650201 [3]昆明冶金高等专科学校后勤管理处,云南昆明650201

出　　处：《亚热带植物科学》2018年第3期229-234,共6页Subtropical Plant Science

基　　金：国家环保部2011生物多样性保护专项(11-26)

摘　　要：为了揭示中甸刺玫Rosa praelucens的种群特征,在香格里拉中甸刺玫分布区域设置10个样方,编制中甸刺玫的静态生命表、存活曲线、χ~2值、连接系数(AC)、种间共同出现百分率(PC)等指标对中甸刺玫种群结构进行分析;采用Cassie指标(CA)、丛生指标(I)、负二项式分布参数(K)、聚块性指数(PAI)等聚集强度指数分析种群分布格局。结果表明:(1)中甸刺玫种群属于衰退型,年幼树种较少,老年的个体所占比例较大,种群更新慢;(2)按照Deevey的分类,中甸刺玫的存活曲线属于III型;(3)进行χ~2检验,发现中甸刺玫群落中各物种间的独立性比较大;(4)中甸刺玫种群分布格局基本遵循聚集分布的格局。In order to reveal population characteristics of Rosa praelucens,10 sample plots were set in its distribution area in Shangri-La,and life table,survival curve,χ2,AC,PC of R.praelucens were compiled to analyze the population structure of R.praelucens.CA,I,K,PAI and other aggregation intensity indexes were used to analyze the population distribution pattern so as to provide theoretical basis for population protection of R.praelucens in Shangri-La.Results showed that:(1)R.praelucens belonged to the recession,with few young trees,large proportion of elderly individuals,and slow population renewal.(2)According to Deevey classification,the survival curve of R.praelucens belonged to Deevey III.(3)Throughχ2 test,it was found that the independence of individual species in R.praelucens community was relatively large.(4)The distribution pattern of R.praelucens population basically followed the pattern of aggregation distribution.

关 键 词：中甸刺玫 濒危植物 种群结构 空间分布格局 

分 类 号：Q948.15[生物学—植物学]