荔波瘤果茶种群年龄结构及空间分布格局  

Age Structure and Spatial Distribution Pattern of Camellia rubimuricata Population

作　　者：刘映良[1] 杜兴乔[1] 方小平[1] 

机构地区：[1]贵州师范大学生命科学学院,贵阳550001

出　　处：《湖北农业科学》2010年第9期2172-2174,共3页Hubei Agricultural Sciences

基　　金：国家"十一五"科技支撑计划项目(2006BAD03A0303)

摘　　要：为了揭示荔波瘤果茶的种群特征,在荔波国家级自然保护区荔波瘤果茶主要分布地设置400m2样地7个,以种群年龄结构分析荔波瘤果茶种群的基本数量特征,应用扩散系数、聚集指数、扩散型指数、平均拥挤度、聚块性指数和聚集强度6种聚集度指数分析荔波瘤果茶种群空间分布格局。结果表明,荔波瘤果茶种群年龄结构属金字塔型,种群是增长的,幼年个体较丰富,老年个体数量很少;荔波瘤果茶种群的空间分布格局为集群分布。7 plots of 400m^2 in Li-bo National Nature Reserve were established and investigated to reveal population characteristics of Camellia rubimuricata in Guizhou province.Basic quantitative characteristic of the population was analysed by age structure.At the same time,spatial distribution pattern of the population was studied by six aggregation intensity indexes,such as coefficient of dispersion,clump index,index of dispersion-type,degree of mean crowding,patchness index,and clumping intensity index.The results showed that the age structure of the population was belonged to pyramid-type,the population was increased,abundant saplings less adults.Spatial distribution pattern of Camellia rubimuricata population was clumpy distribution.

关 键 词：荔波瘤果茶 种群 年龄结构 空间分布 

分 类 号：S718.542[农业科学—林学]