文献类型：期刊文献

中文题名：滇西北云南红豆杉种群空间分布格局

英文题名：Spatial Distribution Pattern of Taxus yunnanensis Population in Northwest Yunnan Province

作者：刘万德[1] 苏建荣[1] 王梦君[2] 王家炳[3] 李少文[3] 杨立静[3] 罗发兰[3] 杨柏[3]

第一作者：刘万德

机构：[1]中国林业科学研究院资源昆虫研究所;[2]国家林业局昆明勘察设计院;[3]马关县金城林场

年份：2012

卷号：27

期号：6

起止页码：131-138

中文期刊名：西北林学院学报

外文期刊名：Journal of Northwest Forestry University

收录：CSTPCD;;北大核心:【北大核心2011】；CSCD:【CSCD_E2011_2012】；

基金：国家林业局948项目(2011-4-03);云南省科技厅人才培养资助项目(2011CI072)

语种：中文

中文关键词：云南红豆杉;空间分布;尺度;龄级

外文关键词：Taxusyunnanensis; spatial distribution; scale; age stage

分类号：S791.49

摘要：针对云南红豆杉种群分布特点,在滇西北云南红豆杉分布集中区域设置了9个20m×20m的调查样地,采用离散分布理论拟合方法,对该地云南红豆杉种群空间分布格局和动态进行了分析。滇西北云南红豆杉种群个体主要集中于Ⅲ、Ⅳ龄级,而幼龄树(Ⅰ和Ⅱ级)极少或没有,说明滇西北野生云南红豆杉种群更新困难。云南红豆杉在5m×5m、5m×10m和10m×10m取样面积上均呈聚集分布,并且种群在不同发育阶段也均呈聚集分布,说明聚集分布是滇西北云南红豆杉种群空间分布的基本属性。
Taxus yunnanensis is an endangered species distributed mainly in southwestern China. Based on the distribution characteristics of T. yunnanensis population, 9 sampling plots, each with an area of 400 m2 were established in the concentrated distribution area in northwest Yunnan to investigate the spatial dis- tribution pattern and dynamics by using discrete distribution theory. The results showed that most of indi- viduals concentrated in size class Ⅲ and Ⅳ, and few or none individuals appeared in size class Ⅰ and Ⅱ , in- dicating that the regeneration of T. yunnanensis was difficult. At different sampling areas, such as 5 m× 5 m, 5 m×10 m and 10 m× 10 m, T. yunnanensis populations all performed the pattern of congregation distribution. T. yunnanensis populations also performed the pattern of congregation distribution at differ- ent age stages, indicating that congregation distribution was the basic attribute of spatial distribution of T. yunnanensis population in northwest Yunnan.