摘要
运用扩散系数(C)、丛生指数(I)、扩散指数(Iδ)、Cassie指标(Ca)、平均拥挤度与平均密度的比值(M*/x),Iwao回归和Taylor法则对小叶青冈幼苗的分布格局和动态进行分析。分析结果表明:小叶青冈幼苗的空间分布格局呈聚集分布,并且随着演替的进展,小叶青冈幼苗的聚集强度逐渐加强。
Cyclobalanopsis gracilis forest is a kind of important species of mid-subtropical evergreen broad-leaved forest, the spatial distribution pattern and dynamics of Cyclobalanopsis gracilis saplings at different altitudes in Mangdangshan mountain were investigated by taking five aggregation indexes （C, I, Iδ, Cα, M^＊/x^-） as the evaluating indicators, and using Iwao＇s equtation and Taylor＇s model. The results indicate that the distribution patterns of saplings appeared clustered distributions; with the succession goingon, the trend of aggregation intensity of C. gracilis gradually strengthened.
出处
《中南林业科技大学学报》
CAS
CSCD
北大核心
2013年第10期5-8,共4页
Journal of Central South University of Forestry & Technology
基金
国家林业局林业公益性行业科研专项项目子课题(200704010)
福建省教育厅资助项目(JA12112)
关键词
小叶青冈
幼苗
空间分布格局
聚集度指标
Cyclobalanopsis gracilis
saplings
spatial distribution pattern
aggregation index
