生态学杂志2011,Vol.30Issue(1):53-58,6.
天目山自然保护区银杏天然种群生命表
Life table of natural Ginkgo biloba population in Tianmu Mountain Nature Reserve
摘要
Abstract
Based on the population life table and the theory of survival analysis, the static life table of GinKgo biloba population in Tianmu Mountain Nature Reserve of Zhejiang Province was compiled by applying the age class structure represented by DBH class and the smoothing out technique. The mortality rate curve, killing power curve, survival rate curve, and survival function curve were also analyzed to reveal the population' s quantitative dynamics. There was a fluctuation in the structure of G. biloba population. The survival curve of the population tended to the type of Deevey Ⅱ , and the individuals at adult stage were abundant. The mortality rate curve and killing power curve in the lifespan had similar variation trend, all with the peaks in 6th and llth age class periods. The survival rate of the population decreased monotonically, whereas the cumulative mortality rate was in adverse. The survival functional curve showed that the G. biloba population grew poorly in early age period and stably in middle age period, but declined in old age period.关键词
种群生命表/存活曲线/种群数量动态/银杏分类
生物科学引用本文复制引用
李玲,张光富,王锐,孙国,赵明水..天目山自然保护区银杏天然种群生命表[J].生态学杂志,2011,30(1):53-58,6.基金项目
江苏省普通高校自然科学研究计划项目(08KJB180005)和国家基础科学人才培养基金项目(J0730650)资助. (08KJB180005)