摘要
以种群生命表及生存分析理论为基础,编制四球茶种群静态生命表,绘制存活曲线、死亡率曲线、损失度曲线、生存率曲线、积累死亡率曲线、死亡密度函数曲线、危险率曲线,分析种群生命过程,结果显示:幼龄级的数量本应较多,但实际调查到的幼龄级个体较少,这应该是由于人为干扰引起的结果;四球茶的死亡高峰开始于14龄级,其后就持续上升,主要应是受四球茶本身遗传因素的影响;四球茶的生存曲线属于Deevey Ⅱ型,说明在正常环境条件下四球茶生命周期中其死亡率是基本相同。
Based on the life table of population and theory of survival analysis,the static life table of Camellia tetracocca population was compiled,and the survival curve,the mortality curve,the loss degree curve,the survival rate curve,thecumulative mortality curve,the death density function curve,the risk rate curve and the life span of the population were analyzed. It should be more,but the actual investigation of young individuals is less,this should be due to the result of human disturbance;the peak of death of Camellia tetracocca begins at the 14 age level,and then continues to rise,which is mainly influenced by thegenetic factors of Camellia tetracocca itself;the survival curve of Camellia tetracocca belongs to the Deevey Ⅱ type,indicatingthat under the normal environmental conditions, the mortality of Camellia tetracocca is basically the same in the life cycle.
作者
曾辉
郭颖
唐文才
向仰州
ZENG Hui;GUO Ying;TANG Wen-cai;XIANG Yang-zhou(Guizhou Provincial Institute of Forest Inventory and Planning,Guiyang 550003,China;Pu’an County Forestry Bureau,Guizhou Pu’an 561500,China)
出处
《温带林业研究》
2018年第4期48-51,共4页
Journal of Temperate Forestry Research
基金
贵州省林业厅项目
普安县珍稀古茶树四球茶种群生态学研究(黔林科合[2013]号)
贵州省科技厅项目
贵州省林业调查规划院森林生态监测评估院士工作站(黔科合院士站[2013]4004)
贵州省科技厅项目
贵州省森林资源监测与评价科技创新人才团队(黔科合人才团队[2013]4007)
关键词
四球茶
种群生命表
生存分析
Camellia tetracocca
population life table
surival analysis
