林业科学2007，Vol.43Issue(7)：86-92,7.
我国特有珍稀植物七子花濒危原因分析
Endangering Causes of an Endemic Plant Heptacodium miconioides in East China
摘要
Abstract
Heptacodium miconioides is an endangered species mainly distributed in Zhejiang and Anhui Province, China. To understanding its endangering causes, previous studies were reviewed from aspects of plant migration in history, present geographical distribution and resources, biological and ecological characteristics and effect of human disturbance. The results showed that the strong climatic changes might result in a massive shrinkage of its distribution in history, which might be main cause for its modern habitat fragmentation and rare resources. Low genetic diversity due to the bottleneck and founder effect decreased its ecological adaptability. Moreover, its inherent characteristics, such as low genetic diversity, sexual reproductive obstacle and special status in forest, limited its population recruitment. To preserve this species, in situ conservation plan establishing nature reserve or spot and enlarging its population size were recommended.关键词
七子花/濒危原因/保护对策Key words
Heptacodium miconioides/endangering causes/conservation strategies分类
农业科技引用本文复制引用
郝朝运,刘鹏..我国特有珍稀植物七子花濒危原因分析[J].林业科学,2007,43(7):86-92,7.基金项目
Supported by Natural Science Foundation of Zhejiang Province(399277). （399277）
