Rare and endangered plants were integral components of biodiversity and ecosystems,and they played a significant role in maintaining ecological balance.Based on field surveys and in conjunc-tion with the scientific research data from 2007,a systematic study was conducted on the species com-position,regional characteristics,life forms,and habitat features of rare and endangered wild plant re-sources in the South China Tiger Provincial Nature Reserve in the northern part of Guangdong.A total of 154 rare and endangered wild plant species belonging to 66 families and 117 genera were observed,including 1 species of national first-class protected wild plants and 26 second-class protected species.6 species were included in the"Guangdong Province Key Protected Wild Plant List".132 species were included in the"Province Red List of Higher Plants in Guangdong".The rest were recorded by the"Chi-na Threatened Species List of Higher Plants"and the"Convention on International Trade in Endangered Species of Wild Fauna and Flora".Apart from species with large populations and wide distribution ar-eas such as Cibotium barometz(L.)J.Sm.and Fagopyrum dibotrys(D.Don)Hara,other species had smaller populations and more limited distribution areas.Individuals of Coptis chinensis var.brevisepala W.T.Wang et&P.G.Xiao and Euchresta japonica Hook.f.ex Regel were sporadically distributed in the core area.Toona ciliata M.Roem.and Glycine soja Siebold&Zucc.were distributed in the buffer zone and experimental area of the reserve.The regional flora was predominantly tropical-subtropical,with a family/genus R/T ratio of 1.33 and 1.48 respectively.The life forms were dominated by herbaceous plants,with a prominent endangered component,and they possessed multiple functional values,neces-sitating urgent protection.
Conservation areaRare and endangeredPlant speciesFloristic characteristicsWild plants
NETL
NSTL
万方数据
