楠木种群生命表分析  

The Life Table of Phoebe bournei Populations

作　　者：林金锁 Lin Jinsuo(Shaowu Forestry Bureau,Shaowu,Fujian 354000,China)

机构地区：[1]邵武市林业局,福建邵武354000

出　　处：《福建林业》2018年第3期32-35,共4页Fujian Forestry

摘　　要：为了研究楠木纯林种群的数量特征及动态,根据胸径将林木分级,编制出楠木群落的种群生命表,计算该种群的死亡概率、危险概率和存活概率,进一步分析该种群个体数量的动态变化程度。结果表明:楠木种群存在一个较明显的死亡峰值,存活曲线较为符合Deevey-Ⅰ型,但是由于楠木有较长的生命周期,其楠木种群天然更新的周期性尚无法确定。The forests were divided to classes according to the diameter at breast height for studying population quantitative features and dynamics of Phoebe boumei, then the population life table was created and the population death rate, risk and survival probability were assessed, and the dynamic change of population quantity was further studied as well. The results showed that there was a obvious peak of death and the survival curve matched more likely to Deevey- I type, but P. bouruei had long life cycle, its periodicity in the natural regeneration populations was unaware at present.

关 键 词：楠木 种群 生命表 存活曲线 

分 类 号：S718.5[农业科学—林学]