森林与环境学报2017，Vol.37Issue(3)：342-347,6.DOI:10.13324/j.cnki.jfcf.2017.03.016
小果紫薇林近自然种群结构及动态特征
Structure and dynamic characteristics of Lagerstroemia minuticarpa near-natural population
摘要
Abstract
Base on the field survey data of Lagerstroemia minuticarpa Debberm. ex P. C. Kanjilal population under near-natural condition in Motuo,Tibet, the static life table, survival curve, survival function curve, mortality rate and killing power curve were analyzed.And the population structure and dynamic characteristics of L.minuticarpa were predicted by the adoption of the time sequence model and quantitative method of population dynamics in this paper.Results showed that: the population of L.minuticarpa fit in with the growing type, Vpi andV′pi was greater than zero when taking external interference into consideration, but sensitive to external disturbance.The survival curve trended to Deevey-Ⅱ type which indicated that the mortality rate in different age-classes was similar.The changing trend of the curve of mortality rate was the same as the killing power curve.Time sequence model suggested that the number of small, medium and big trees would increase in the age-classes of 2, 4, 6 and 8 in the future.With appropriate minor human disturbance, the existing habitat of L.minuticarpa population would be maintained completely and the population will go developing with self-renewal ability.关键词
种群结构/静态生命表/生存分析/时间序列预测/小果紫薇Key words
population structure/static life table/survival analysis/time sequence analysis/Lagerstroemia minuticarpa Debb.ex P.C.Kanjilal分类
生物科学引用本文复制引用
刘震,闫淑君,田高飞,吴艳芳,段嵩岚,潘刚..小果紫薇林近自然种群结构及动态特征[J].森林与环境学报,2017,37(3):342-347,6.基金项目
国家自然科学基金项目(31100303) （31100303）
福建省教育厅重点项目(JA15142). （JA15142）
