仲恺农业工程学院学报2026，Vol.39Issue(3)：1-8,8.DOI:10.3969/j.issn.1674-5663.2026.03.001
韩江上游不同类型崩岗区植物多样性研究
Study on plant diversity of different types of collapsing gullies in the upper reaches of the Hanjiang River
摘要
Abstract
Plant diversity serves as a key indicator for evaluating the ecological functions of vegetation.Taking the collapsing gully area in the upper reaches of the Hanjiang River—where gully erosion is the most severe and concentrated in Guangdong Province—as the research object,this study employed the quadrat sampling method to investigate the plant composition,diversity,and community similarity across three gully types:non-gully forest land,relatively stable collapsing gullies,and active collapsing gullies.The aim was to provide a scientific basis for screening pioneer plants and guiding ecological restoration in collapsing gully areas.The results showed that:1)Non-gully forest land exhibited the highest species richness and evenness overall,followed by relatively stable collapsing gullies,with active collapsing gullies showing the lowest richness and diversity across all vegetation layers.2)Non-gully forest land and relatively stable collapsing gullies had high similarity in species composition in the tree and shrub layers,while active collapsing gullies differed significantly from other plots.The herb layer showed strong similarity across gully types,indicating robust environmental adaptability of the herbaceous plants.3)Pinus massoniana,Rhodomyrtus tomentosa,and Dicranopteris dichotoma ranked first in importance value in the tree,shrub,and herb layers of the two gully areas,respectively.These dominant species are well-adapted to harsh gully habitats and can serve as pioneer species for vegetation restoration in collapsing gullies of the upper Hanjiang River.关键词
崩岗/植物多样性/重要值/韩江上游Key words
collapsing gully/plant diversity/importance value/the upper reaches of the Hanjiang River分类
农业科技引用本文复制引用
陈芬芳,田甜,张安琪,黄源丰,刘昊,陈三雄..韩江上游不同类型崩岗区植物多样性研究[J].仲恺农业工程学院学报,2026,39(3):1-8,8.基金项目
广东省水利科技创新项目(2024-02). （2024-02）
