广西植物2026，Vol.46Issue(2)：245-258,14.DOI:10.11931/guihaia.gxzw202504028
乌蒙山国家级自然保护区兰科植物多样性与分布格局研究
Diversity and distribution patterns of Orchidaceae in Wumeng Mountain National Nature Reserve
摘要
Abstract
Orchidaceae,encompassing numerous rare and endangered species,remains a focal group for biodiversity conservation research due to its distribution characteristics and survival status.To comprehensively master the species diversity,distribution patterns,and survival status of Orchidaceae in Wumeng Mountain National Nature Reserve of northeastern Yunnan Province,we systematically surveyed orchids using quadrat sampling and analyzed their diversity through diversity indices and phylogenetic reconstruction.It had deeply revealed the diversity characteristics of Orchidaceae in this region.The results were as follows:(1)The Orchidaceae flora was dominated by Habenaria,Calanthe,and Platanthera,with characteristic species including Calanthe puberula,Liparis campylostalix,Neottia nanchuanica,Odontochilus elwesii,and Goodyera henryi.Monotypic genera comprised 73％of the total.Diversity indices[Margalef's richness index(DMG)=4.035 6,Shannon-Wiener diversity index(H')=2.622 8,Simpson's dominance index(λ)=0.113 6)]indicated moderate diversity and low dominance.(2)Species richness peaked at mid-high altitudes(1 700-2 100 m).Phylogenetically related species clustered at similar altitudes and habitats,suggesting strong habitat filtering.(3)Notably,30％of species were threatened,particularly the taxa with medicinal and ornamental values such as Anoectochilus emeiensis,Cremastra appendiculata,Pleione yunnanensis,and Cymbidium goeringii and the survival status of these species were particularly worrying.In summary,the overall diversity of the Orchidaceae flora in this reserve is not high,and the distribution of species is uneven at different altitudes,and some species are facing high survival risks.The study provides critical baseline data for regional Orchidaceae diversity research and provide direct scientific support for the subsequent systematic protection and management of Orchidaceae.关键词
兰科/生物多样性/物种组成/海拔梯度/濒危状况Key words
Orchidaceae/biodiversity/species composition/altitudinal gradient/conservation status分类
农业科技引用本文复制引用
何艳丽,胡海霞,杨文科,李旦,刘强,宋亮..乌蒙山国家级自然保护区兰科植物多样性与分布格局研究[J].广西植物,2026,46(2):245-258,14.基金项目
云南省中青年学术和技术带头人后备人才项目(202305AC160024) （202305AC160024）
国家自然科学基金面上项目(32171529) （32171529）
云南省重点研发计划项目(202403AC100028) （202403AC100028）
云南省"兴滇英才支持计划"青年人才项目(YNWR-QNBJ-2020-066). （YNWR-QNBJ-2020-066）
