摘要
根据《中国植物红皮书》(第一册)和1999年由国务院批准公布的《国家重点保护野生植物名录(第一批)》,江西省有国家保护珍稀濒危植物共计45科72属87种,该文对上述珍稀保护植物的生活型及种子植物的区系成分特征进行了调查和分析,结果表明:该区分布的65属珍稀濒危种子植物中,热带分布型有18属,占种子植物属的27.7%,温带分布型有28属,占43%,其植物区系具有明显的温带-亚热带过渡性质;中国特有分布型18属,占总属数的27.7%,具有特有性强,起源古老的特征.聚类分析结果表明,本区系与浙江、安徽、湖南、四川之间的关系较为密切.
According to Red Book of Plants in China （Vol. 1） and National Important Wild Conservative Plants List （List 1）, which were issued by the State Council in August of 1999, there are 45 families, 72 genera, and 87 species of rare and endangered plants in Jiangxi Province. The growth-type and floristic characteristics of seed plants were investigated and analyzed in this paper. The results are as follows： From the analysis of the generic distribution of 65 genera of the rare and endangered seed plants of Jiangxi, 18 genera are of tropical distribution, which make up 27.7% of the total generic number of endangered plants; 28 genera are of temperate distribution, which account for 43% of the total. The floristic elements have obvious temperate to subtropical characteristics. Eighteen genera are of endemic distribution to China, which make up 27.7% of the total generic number of the endangered plansts. The floristic elements are characterized by ancient origin and obvious endemism. Cluster analysis indicates that the flora here shows a close relation to those of Zhejiang, Anhui, Hunan and Sichuan.
出处
《西南大学学报（自然科学版）》
CAS
CSCD
北大核心
2007年第10期92-96,共5页
Journal of Southwest University(Natural Science Edition)
基金
国家自然科学基金资助项目(编号:30560025)
江西省自然科技专项平台资助项目
江西省自然科学基金资助项目
江西省教育厅科技资助项目
关键词
珍稀濒危植物
区系特征
聚类分析
江西
Rare and endangered plants
Floristic characteristics
Cluster Analysis
Jiangxi
