摘要
采用"空间序列代替时间变化"的方法,对武夷山南方铁杉种群进行分析。结果表明样地1、样地2与样地4中的南方铁杉种群均处于小树及中树时期,而生长在样地3和样地5中的南方铁杉种群的幼树与老树分别占据主导地位。运用C、K、M*/x-、I和Ca5种指标测定种群空间分布格局和动态,结果一致表明5块样地中南方铁杉种群均呈现出聚集分布,但不同样地南方铁杉聚集分布的成因有所不同。通过分析南方铁杉种群存活曲线、死亡曲线和死亡率曲线,结果表明南方铁杉有一个死亡最低峰,存活曲线趋于DeeveyⅡ型。
With the method of spatial series substituting for time series, Tsuga tchekiangensis Flous population structure was analyzed in Wuyishan State Nature Reserve. The results showed that the young and middle-aged trees were primary components in T. tchekiangensis populations of plots 1,2 and 4. However, the young and old trees were main components in that of plots 3 and 5. The study on spatial distribution pattern by using five aggregate indices indicated that the type of distribution pattern was clumped, but the causes for this were different. Based on the survival curve, mortality curve and mortality ratio curve, the results showed that the population had one valley of morality, and the survival curve of the population tended to belong to the type of Deevey Ⅱ.
出处
《福建林学院学报》
CSCD
北大核心
2008年第2期110-114,共5页
Journal of Fujian College of Forestry
基金
福建省科技厅重大资助项目(2001F007)
关键词
南方铁杉
种群结构
空间分布格局
存活曲线
Tsuga tchekiangensis
population structure
spatial distribution pattern
survival curve
