林业与生态科学2025，Vol.40Issue(1)：73-82,10.DOI:10.13320/j.cnki.hjfor.2025.0009
东北红豆杉保护区典型植物群落物种多样性特征
Species diversity characteristics of typical plant communities in Taxus cuspidata conservation area in northeast China
摘要
Abstract
Typical plant communities have important ecological functions.By analyzing the species diversity and structure differences of typical plant communities in Taxus cuspidata conservation areas in northeast China,this paper provides scientific basis for the sustainable use of vegetation in the areas.According to the construction specification of the long-term positioning forest ecosystem observation station,five 40×40 m fixed monitoring plots were established in broad-leaved Korean pine forest in Taxus cuspidata conservation areas in 2023.With five typical plant communities,Larix gmelinii forest(ML1),Quercus mongoli-ca forest(ML2),Betula platy phylla broad-leaved forest(ML3),broad-leaved forest(ML4)and broad-leaved Pinus koraiensis forest(ML5)as the research objects,woody plants with diameter more than 1cm were investigated through the communities of different vegetation succession stages,and the changes in community composition and population structure of the five plants were preliminarily analyzed.The results showed that there are five main types of vegetation communities in this area,with 43 species of woody plants in the five communities belonging to 16 families and 29 genera.274 surviving individuals of 18 spe-cies were monitored in ML1 plots,466 surviving individuals of 11 species in ML2 plots,1531 surviving individuals of 32 species in ML3 plots,1 237 surviving individuals of 12 species in ML4 plots,and 310 surviving individuals of 13 species in ML5 plots.The number of plant individuals ranked in the order of ML3＞ML4＞ML2＞ML5＞ML1.The sum of thoracic height basal area of woody plants with DBH more than 1 cm was 24.48,26.99,24.80,34.58 and 40.91 m2/hm2,respectively.The average DBH ranked in the order of ML5(10.37 cm)＞ML2(9.32 cm)＞ML1(6.78 cm)＞ML4(4.77 cm)＞ML3(3.52 cm),and the thoracic height basal area ranked in the order of ML5＞ML4＞ML2＞ML3＞ML1.The dominant species in the ML1 plot are Larix gmelinii and Betula dahurica,Quercus mongoli-ca in the ML2 plot,Betula platy phylla and Acer barbinerve in the ML3 plot,Abies nephro-lepis,Acer barbinerve and Acer tegmentosum in the ML4 plot,and Pinus koraiensis,Tilia amurensis and Acer ukurunduense in ML5 plot.From the analysis of species relative density,relative frequency,relative dominance and important values,community-dominant popula-tions differ significantly.With the succession proceeding,the woody plant species decrease gradually and the thoracic height basal area increases significantly.关键词
东北红豆杉保护区/典型植物群落/物种组成Key words
Taxus cuspidata conservation areas/typical plant communities/species composi-tion分类
农业科技引用本文复制引用
刘学,刁云飞,张苏..东北红豆杉保护区典型植物群落物种多样性特征[J].林业与生态科学,2025,40(1):73-82,10.基金项目
黑龙江省省属科研院所科研业务费项目(CZKYF2023-1-B028 （）
SCZ2024-08) （）
黑龙江省重点研发计划项目(GZ20220117). （GZ20220117）
