干扰强度对大海陀自然保护区油松林群落生物多样性的影响  

The Effects of Disturbance Intensity on Biodiversity of Pinus tabulaeformis Community in Dahaituo Nature Reserve

作　　者：张智婷 刘松涛 唐宏亮[2] 赵海超[1] 刘晨 蒋鹏程 姚大军 毕君 张丽荣 ZHANG Zhi-ting;LIU Song-tao;TANG Hong-liang(College of Agriculture and Forestry Science and Technology,Hebei North University,Zhangjiakou,Hebei 075000;College of Life Sciences,Hebei University,Baoding,Hebei 071002)

机构地区：[1]河北北方学院农林科技学院,河北张家口075000 [2]河北大学生命科学学院,河北保定071002 [3]河北省大海陀国家级自然保护区管理处,河北张家口075000 [4]河北省林业和草原科学研究院,河北石家庄050000 [5]河北省林业和草原调查规划设计院,河北石家庄050000

出　　处：《安徽农业科学》2024年第13期88-93,110,共7页Journal of Anhui Agricultural Sciences

基　　金：大海陀国家自然保护区科研课题(2019-EQ006);河北省重点研发计划项目(22326804D)。

摘　　要：在大海陀国家自然保护区选择重度干扰、轻度干扰和无干扰油松林,调查林下灌木层和草本层物种多样性,分析人类干扰强度对油松林群落生物多样性的影响。结果表明:大海陀自然保护区油松林群落灌木16种,草本植物75种。随着干扰强度的增加,灌木层优势种由北京丁香演替为土庄绣线菊,草本层优势种由东亚唐松草向龙芽草演替,且优势种优势度降低,物种的均衡性增强。随着油松林群落人类干扰强度的增加,草本物种多样性和均匀度呈上升趋势,重度干扰油松林群落中灌木物种多样性和均匀度和无干扰群落存在显著差异,但物种丰富度无显著差异。重度干扰与无干扰相似度较低,共同物种较少,轻度干扰使油松林灌木物种数量和科数、草本物种数、属数增加。人类活动是林下植被变化的主要控制因素。Pinus tabulaeformis forests with severely disturbed,lightly disturbed and non-disturbed were selected in Dahaituo National Nature Reserve to investigate the species diversity of shrub and herb layer under the forest,and the impact of human disturbance intensity on the biodiversity of Pinus tabulaeformis forest was analyzed.The results showed that there were 16 shrubs and 75 herb species in Pinus tabulaeformis forest community in Dahaituo Nature Reserve.With the increase of disturbance intensity,the dominant species in shrub layer succession from Syringa pekinensis Rupr.to Spiraea pubescens Turcz.,and the dominant species in herb layer succession from Thalictrum minus Linn.to Agrimonia pilosa Ldb.,and the dominance of dominant species decreased and the balance of species increased.Herbaceous species diversity and uniformity showed an upward trend with the intensity of human disturbance in Pinus tabulaeformis community.There were significant differences in shrub species diversity and evenness between severely disturbed Pinus tabulaeformis community and non-disturbed community,but there was no significant difference in species abundances.The low similarity showed between severely disturbed and non-disturbaned,and there were few common species,either.Slightly disturbed increases the number of shrub species,families,herbaceous species and genera in Pinus tabulaeformis forest.Human activities are the major controlling factors of understory vegetation change.

关 键 词：大海陀自然保护区 干扰强度 油松林 灌木层 草本层 生物多样性 

分 类 号：S759.9[农业科学—森林经理学]