Comparative study and geographical distribution of key protected wild vascular plants in Jiangxi Province,China
Rare and endangered wild plants are important strategic resources and an essential component of biodiversity conservation.Grasping the diversity and geographic distribution of key protected plants in Jiangxi Province is a key step in developing scientific conservation and management at the provincial scale.Combining List of National Key Protected Wild Plants(NKPWP,2021)and Checklist of the Key Protected Wild Plants in Jiangxi Province(KPWP,2005),and digitized distribution data of herbarium specimens provided by the National Specimen Information Infrastructure(NSII),the diversity,geographic distribution,and conservation profile of these plants found in Jiangxi Province were analyzed.The results were as follows:(1)A total of 148 species of NKPWP(including intraspecies taxa),spanning 89 genera and 47 families,were found in Jiangxi Province.(2)A total of 407 species,belonging to 85 families and 208 genera,were recognized as the key protected plants in Jiangxi Province,including 16 species of lycopods and ferns(9 families and 10 genera),26 species of gymnosperms(6 families and 17 genera),and 365 species of angiosperms(70 families and 181 genera).(3)Among of these species,60.9%of them were protected within 32 national and provincial natural reserves;70.5%of them were distribution in 67 Chinese botanic gardens.(4)Observation value and estimation value of species richness indicated that the areas had higher species richness include mountains and its adjacent areas of Lushan,Jiuling,Wugong,Jinggang in northern area,and Dayuling,Jiulian,and Wuyi in southern area.The distribution pattern of hotspots was generally consistent with the ranges of five key protected areas of biodiversity conservation in Jiangxi Province.The issues of the species included in Checklist of the Key Protected Wild Plants of Jiangxi Province(2005)were discussed,and the 6E principles of the priority selection of key protected wild plants at province level and the related suggestions to strengthen the research on provincial protected plants were proposed.