广西科学院学报2024，Vol.40Issue(2)：112-118,7.DOI:10.13657/j.cnki.gxkxyxb.20240709.002
防城季节性雨林两广梭罗树种群空间分布格局及种内关联分析
Analysis on Spatial Distribution Pattern and Intraspecific Corre-lation of Reevesia thyrsoidea Population in Fangcheng Seasonal Rainforest
摘要
Abstract
In order to explore the spatial distribution pattern and intraspecific association characteristics of Reevesia thyrsoidea population,a 1 hm2dynamic monitoring plot was set up in the seasonal rainforest of Nas-hanzi in Fangcheng.The univariate function g(r)and the bivariate function K12(r)were used to analyze the spatial distribution pattern of the population and the intraspecific correlation of individual groups at different developmental stages.The results show that there are a large number of small-age individuals in the R.thyr-soidea population,the population diameter structure is pyramid-shaped,and the population is in a growing state.On multi-scale,the whole population,saplings,small trees and adult trees of R.thyrsoidea tend to clus-ter distribution.There is a significant positive correlation between the spatial distribution of saplings,small trees and adult trees.The young individuals of R.thyrsoidea population are abundant and have a good regen-eration potential.The adult individuals have no significant inhibitory effect on the young individuals.Through individual aggregation and intraspecies protection,R.thyrsoidea population has a strong competitiveness in the community and occupies a favorable ecological niche.In summary,the current survival status of R.thyr-soidea population is less affected by density constraints and shows an increasing trend.关键词
两广梭罗树/空间格局/种内关联/季节性雨林/防城Key words
Reevesia thyrsoidea/spatial pattern/intraspecific association/seasonal rainforest/Fangcheng分类
农业科技引用本文复制引用
左静,陈善栋,杨凤琴,李武峥,覃毅,廖南燕,杨婷,梁士楚..防城季节性雨林两广梭罗树种群空间分布格局及种内关联分析[J].广西科学院学报,2024,40(2):112-118,7.基金项目
广西自然科学基金项目(2022GXNSFAA035600),中央财政林业改革发展资金项目(GXZ2022-C3-002212-YZLZ)和2023年度广西大学生创新创业训练计划项目(S202310602177)资助. （2022GXNSFAA035600）
