中亚热带不同植被恢复期植物群落多样性特征  

Characteristics of plant community diversity in different vegetation restoration periods in the central subtropics

作　　者：李静凯 黄荣珍[1] 朱丽琴[1] 张腾升 刘萍渝 黄国敏[1] 杨润 郭志娟 秦易 LI Jingkai;HUANG Rongzhen;ZHU Liqin;ZHANG Tengsheng;LIU Pingyu;HUANG Guomin;YANG Run;GUO Zhijuan;QIN Yi(Jiangxi Key Laboratory for Intelligent Monitoring and Integrated Restoration of Watershed Ecosystem,Nanchang Institute of Technology,Nanchang 330099,China;Ganzhou River and Lake Protection Center,Ganzhou 341000,China)

机构地区：[1]南昌工程学院流域生态智能监测与综合治理江西省重点实验室,江西南昌330099 [2]赣州市河湖保护中心,江西赣州341000

出　　处：《南昌工程学院学报》2024年第3期52-57,共6页Journal of Nanchang Institute of Technology

基　　金：国家自然科学基金资助项目(31660192);南昌工程学院引进(培养)高层次人才科研启动项目(2022kyqd015);江西省教育厅科学技术研究项目(GJJ190945)。

摘　　要：以赣江源国家级自然保护区洋地林场的残次林、针阔混交林和阔叶林为研究对象,采用空间序列代替时间序列的方法,研究不同植被恢复期植物多样性和林分结构特征。结果表明:不同植被恢复期植物物种由多到少依次为阔叶林(38种)、针阔混交林(28种)、残次林(23种);随着植被恢复的进行,乔木和灌木植物物种不断升高,草本植物物种先升高后降低;不同植被恢复期,乔木、灌木、草本的重要值、α多样性和相似性存在明显差异;群落演替促进了乔木和灌木植物的生长,抑制了草本植物的生长。研究结果可为植物多样性的保护、中亚热带人工林生态系统的稳定提供参考。Taking the residual forest,coniferous and broad mixed forest and broad-leaved forest in Yangdi Forest of Ganjiangyuan National Nature Reserve as the research object,the method of spatial sequence instead of time series was used to explore the plant diversity and stand structure characteristics of different vegetation recovery periods,so as to provide a theoretical basis for the vegetation restoration in subtropical areas.The results show that the plant species in different vegetation storation periods were broad-leaved forest(38 species),coniferous and broad-leaved mixed forest(28 species),and residual forest(23 species).With the progress of vegetation restoration,the species of trees and shrubs increased,and the species of herbaceous plants increased first and then decreased.There were significant differences in the importance value,α diversity and similarity of trees,shrubs and herbs in different vegetation restoration stages.Community succession promoted the growth of trees and shrubs,and inhibited the growth of herbs.This study provides a reference for the protection of plant diversity and the stability of subtropical plantation ecosystems.

关 键 词：植物多样性 植被恢复 赣江源国家自然保护区 重要值 

分 类 号：Q14[生物学—生态学]