Statistical Analysis and Areal-types Study of Fern Resources in Xingdou Mountain of Hubei Province
SHI Guangdi
DING Zhongbiao
CUI Xiaomin
ZHANG Qiang
AI Xunru
LI Juan
Abstract：A systematic survey was conducted to investigate the composition of the fern flora in the Hubei Xingdou Mountain National Nature Reserve,with the aim of clarifying its geographical distribution patterns and elucidating its conservation significance.The study was carried out from 2013 to 2022,involving field investigations and specimen collection across 97 permanent plots,each measuring 20m×20m.Fern species within the reserve were identified and cataloged at the family and genus levels.Based on these data,distribution zones at both the family and genus levels were delineated,medicinal species were tallied,and comparisons with neighboring reserves were made.A total of 156 fern species belonging to 64 genera and 29 families were recorded.4 dominant families(Dryopteridaceae,Polypodiaceae,Athyriaceae,and Thelypteridaceae)were identified,accounting for 67.31%of the total species.The distribution at the family level was dominated by tropical elements(82.76%),while the genus-level distribution exhibited characteristics of a transitional zone,with both tropical and East Asian-North American temperate elements present.Only 7 medicinal fern species were confirmed,representing 4.49%of the total,indicating considerable potential for further development.Compared to surrounding protected areas,the species richness of ferns in Xingdou Mountain was relatively low,which may be related to the monospecific composition of the Metasequoia community structure.The fern flora of Xingdou Mountain was found to have an ancient origin and continuous lineage,though diversity levels remain suboptimal.It was recommended that the species composition of the tree layer be optimized,conservation of rare and endangered species be enhanced,and systematic evaluation of medicinal active components be conducted.The research would provide a scientific basis for the conservation of fern diversity,sustainable use of medicinal resources,and vegetation management within the reserve.
Keywords：Xingdou Mountainfern resourcesphylogenetic compositionareal-typesecotypes
Publication Date：2025-12-30
Online Publishing Date：2025-12-10(First online date of this platform, not the publication date of the document)
Pages：6( 464-469 )