武夷山米槠种群生命表分析

LIFE TABLE ANALYSIS OF CASTANOPSIS CARLESII POPULA TION IN WUYISHAN

摘要:

根据武夷山国家级自然保护区米槠种群的调查材料,编制其静态生命表,进行生存分析。通过绘制亏损率曲线、存活曲线、死亡率曲线、生存函数曲线,分析种群数量动态变化。结果表明,米槠种群有1个死亡高峰,出现在Ⅱ龄级的年龄阶段;存活曲线趋于DeeveyⅢ型;引入生命表中的几个函数能较好地说明种群的结构和动态变化。

Abstract:

Based on the data on Castanopsis carlesii population in Wuyishan Nature Reserve, Fujian, the curves of loserate, survival, mortality rate, and survival function of the population were made for static life table to analyse the population dynamics. The population had a peak of mortality atⅡage class, and survival curve of the population belongs to the type Ⅲ of Deevey, representing that the mortality rate of young individuals was highand was followed by a low and stable mortality. The functions used in staticlifetable could well explain th estructure and dynamics of Castanopsis carlesii population.