中国珍稀濒危孑遗植物珙桐种群的保护

Research on the protection of Davidia involucrata populations,a rare and endangered plant endemic to China

珙桐(Davidia involucrata Baill.)为我国特有的珙桐科单型种,第三纪孑遗植物,素有"活化石"之称,是国家一级重点保护珍稀濒危植物,其特殊的分类地位决定它在全球生物多样性保育中具有不可替代的作用。从珙桐濒危状况和原因、保育技术、保护策略3个方面回顾和总结了珙桐种群保护的研究,并对未来研究方向提出一些建议。

Davidia involucrata Baill.,the only species in Family Davidiaceae,is a rare and endangered plant endemic to China surviving from the Tertiary.It is listed in the China Plant Red Data Book under first-grade state protection,and is irreplaceable for global biodiversity protection due to its special species status.We summarized the research progress on its population protection,concentrating on three questions： its endangered situations and the potential mechanisms,nursing techniques and protection strategies.Then we gave our suggestions for future research.