江西三清山珍稀濒危植物地理成分分析

Analysis of Geographic Elements of the Rare and Endangered Plants of Sanqing Mountain in Jiangxi Province

基于野外调查和相关文献资料整理,依据IUCN和国内有关珍稀濒危植物评估标准,对三清山国家和地方两级珍稀濒危植物地理成分进行统计分析,并与邻近的黄山、武夷山、天目山和庐山的珍稀濒危植物地理成分进行比较。结果表明:三清山珍稀濒危植物有128种,隶属于43科96属,分别占江西省珍稀濒危植物种、科、属总数的61.84%、75.44%、75%。三清山珍稀濒危植物区系具有种类组成丰富、生活型多样、地理成分复杂和特有成分显著等特点,集中了丰富的中国特有成分及大量原始的温带属和众多的古老孑遗植物,是我国第三纪植物区系的重要"避难所"。与毗邻山地珍稀濒危植物地理成分相似性分析结果表明,5山地植物区系关系较密切,但三清山与黄山植物区系关系最密切,与武夷山植物区系关系最疏远。

According to field investigation and relative statistics informations,based on the appraisal criterion of IUCN and the rare and endangered plant within china,the statistical analysis of the rare and endangered geographical composition in the area was made, including the national-level and province-level,and floristic compare with Wuyi Mountain,Lu Mountain,Huang Mountain and Tianmu Mountain.The result showed that a total of 128 species were identified in the rare and endangered plants,belonging to 43 families and 96 genera,accounting for 61.84%,75.44% and 75% of the rare and endangered plants flora in Jiangixi Province.It had the characteristics of rich species components,various life forms,complex geographic components and notable endemic elements.There were a number of China endemic elements,primitive temperate genera and ancient relic plants in the area,this indicated that it might be a key refuge of tertiary flora of China.The analysis results of similarities with neighbour mountain regions in China showed that the flora of 5 Mountains had a close relation.The floristic affinities of Sanqing Mountain were firstly with Huang Mountain,and fourthly is Wuyi Mountain.