西南林业大学学报2025，Vol.45Issue(5)：150-158,9.DOI:10.11929/j.swfu.202401040
重庆市万州区保护植物资源及其区系特征和分布
Protected Plants Resources and their Floristic Characteristics and Distribution in Wanzhou District,Chongqing
摘要
Abstract
Through field investigation and specimen collection,combined with relevant literature,a systemat-ic study was carried out on the species composition,floristic characteristics and distribution pattern of protected plants in Wanzhou District,Chongqing.The results showed that there are 105 species of protected plants in Wan-zhou District in 46 families and 80 genus(only 1 species of bryophyte,Leucobryum juniperoideum;6 families,8 genus and 12 species of lycophytes and ferns;4 families,11 genus and 14 species of gymnosperms,and 78 spe-cies,35 families,60 genus of angiosperms).Among them,there are 53 species of national key protected wild plants in China(6 species of first-class protected plants and 47 species of second-class protected plants);there are 32 species of municipal key protected wild plants in Chongqing,and 49 species of threatened plants.There are 9 floristic geographical components of genera to which protected plant species belong,dominated by temperate components(26 genus,percentage 36.62％),East Asian and Chinese endemic components(25 genus,percentage 35.21％),with some tropical components(20 genus,percentage 28.17％);there are 3 floristic geographical com-ponents of species,with the East Asian and Chinese endemic components(88 species,percentage 95.65％)taking the absolute advantage,and the endemic components with the Southwest-Central-Eastern China,Southwest-Cent-ral China distribution distributions,and other distributions(only in small areas such as East Sichuan,Chongqing,West Hubei,or North Guizhou)are the most abundant,reflecting the typical subtropical character of the protected plant flora in the region.The vertical distribution pattern of the protected plants in this area is in the form of a single-peaked,with the largest proportion of plants distributed in the low and middle mountains above 1 000 m above sea level;however,the horizontal distribution is uneven,mainly in Longju Township,Lishu Township,Tiefeng Township,Dibao Township and other places where the distribution is more abundant.关键词
万州区/保护植物/区系特征/分布规律Key words
Wanzhou District/protected plant/floristic characteristic/distribution pattern分类
生物学引用本文复制引用
罗娜,杨志芳,张永琪,宋立,徐玲玲,宇文思名,刘嗣,李登武..重庆市万州区保护植物资源及其区系特征和分布[J].西南林业大学学报,2025,45(5):150-158,9.基金项目
国家林业和草原局西北调查规划院委托项目(TG20230027)资助. （TG20230027）
