贵州凯里岩溶石山白栎种群分布格局研究  

Spatial Pattern of Quercus fabri Population in Karst Hills of Kaili in Guizhou

作　　者：王健祥[1,2] 梁士楚[2] 韦峰[2] 李军伟[2] 

机构地区：[1]凯里学院教育科学学院,贵州凯里556000 [2]广西师范大学生命科学学院,广西桂林541004

出　　处：《安徽农业科学》2011年第16期9639-9642,共4页Journal of Anhui Agricultural Sciences

基　　金：国家重点基础研究发展计划项目(2006CB403207);凯里学院校级课题(Z1020)

摘　　要：采用方差/比率法、Greig-Smith法对凯里岩溶石山白栎种群分布格局进行研究,同时采用负二项式参数、扩散性指数、丛生指数、平均拥挤度指数和聚块性指数等计测种群的空间集聚强度。结果表明,白栎种群的分布格局主要受自身的生物学特性、生境条件和人为干扰的影响,呈集群或随机分布,但在不同的发育阶段其分布格局有所差异。Spatial pattern of Quercus fabri populations on Karst hills of Kaili was analyzed by the variance/average ratio method and Greig-Smith′s method,and their aggregated intensities were measured by using the following indices： negative binomial parameter,dispersal index,clumping index,crowing mean index and patchiness index.The results showed that the distribution patterns of the Quercus fabri population were mainly affected by their biological characteristics,habitat competition and human disturbance,were random or clustered distribution.But the distribution pattern was different among various developmental stages.

关 键 词：白栎种群 分布格局 岩溶石山 

分 类 号：S792.184[农业科学—林木遗传育种]