生态学杂志2024，Vol.43Issue(3)：675-681,7.DOI:10.13292/j.1000-4890.202403.019
金钟山亚热带森林林窗特征与木本植物多样性的关系
Relationship between forest gap characteristics and woody species diversity in a subtropical forest in Jinzhong Mountain
摘要
Abstract
Studies on the relationship between forest gap spatial pattern and understory woody species diversity are of great significance for understanding species coexistence,biodiversity maintenance and sustainable development of forest ecosystems.In this study,we used the airborne Lidar to collect cloud data from a 24-hm2 permanent forest dynamic monitoring plot in Jinzhong Mountain Nature Reserve of Guangxi,extracted forest gaps,and calculated shape complexity index of each forest gap by R programming language.Correlation analysis was conducted to quanti-fy the relationship between forest gap characteristics and understory woody species diversity.The results showed that the forest gap rate in the study area was 6.16％,the gap density was 15.5·hm-2,the average gap area was 39.72 m2,and the gaps were mainly small and middle sized.The spatial distribution pattern of forest gaps had topographic differentiation,mostly distributed in low altitude and gentle slope areas.The gap shape complexity index was posi-tively correlated with Shannon index and species richness index,which was more obvious in low altitude and steep slope areas.This study revealed the characteristics of plant regeneration in the forest gaps of subtropical forests,which has a certain guiding role for regional biodiversity conservation.关键词
激光雷达/亚热带森林/林窗/分布格局/生物多样性Key words
Lidar/subtropical forest/forest gap/distribution pattern/biodiversity引用本文复制引用
杨元征,蒙洲菊,苏宏新,王嘉丽,蔡文华,杨健,俎佳星..金钟山亚热带森林林窗特征与木本植物多样性的关系[J].生态学杂志,2024,43(3):675-681,7.基金项目
广西科技基地和人才专项(桂科AD19110143,桂科AD21220088)、国家自然科学基金项目(42001216)和广西壮族自治区第五批八桂学者专项经费资助. （桂科AD19110143,桂科AD21220088）
