山西霍山油松种群结构和动态研究  

Population Structure and Dynamics of Pinus tabulaeformis in Huoshan Mountain of Shanxi Province

作　　者：苗艳明[1] 刘任涛[1] 毕润成[1] 

机构地区：[1]山西师范大学生命科学学院,山西临汾041004

出　　处：《武汉植物学研究》2008年第3期288-293,共6页Journal of Wuhan Botanical Research

基　　金：山西省自然科学基金资助项目(20021098)

摘　　要：在山西南部霍山七里峪林场典型地段设置了9个样地,对油松(Pinus tabulaeformis Carr.)种群进行了调查,利用生存分析理论及谱分析理论,分析了油松种群径级结构和静态生命表,绘制了存活曲线,同时分析了种群数量的周期性。主要结果如下:(1)油松的平均密度随径级的增加而减少,反映了密度与径级之间存在着一种负相关性。(2)油松种群的存活曲线整体上趋于DeeveyⅡ型。(3)油松种群的生存与死亡,死亡密度与危险率均存在波动起伏的特点。生存率与积累死亡率单调下降与上升,下降或上升的幅度是前、后期大,中期平稳。(4)谱分析表明油松种群数量动态存在周期性波动,与油松天然更新过程有关。In Huoshan Mountain,9 sampling plots were set up at Qiliyu Farm for field investigation of Pi- nus tabulaeformis population. Based on the theory of survival analysis and spectral analysis, the size struc-ture, the static life table were conducted ; the curves of survival are drawn, the periodicity of P. tabulaeformis population was analyzed. The results are summarized as follow ： （1） The average density of P. tabu-laeforrnis dropped with the increase of size-class, which reflected the negative association between density and size-class ; （2） The estimated survival curve roughly showed the form of Deevey Ⅱ; （3） P. tabulae-formis population has its fluctuation between survival and mortality, and between mortality density and hazard rate. The monotonousess of survival function or accumulate mortality rate function were drop or up. The population was developing in the earlier and later period and stable in the middle period. ; （4） there is a regularity of periodic fluctuation in the process of quantitative dynamics of P. tabulaeformis population,which is related to natural regeneration of P. tabulaeformis.

关 键 词：种群 径级结构 生命表 存活曲线 谱分析 

分 类 号：Q948[生物学—植物学]