Abstract: This paper analyzed the present situation of rare and endangered plant resources in Three Gorges Reservoir Area,and aimed at the ecological and social problems faced with,put forward corresponding conservation countermeasures,which included moving the rare and endangered plants to another places,strengthening the protection of germ plasm resources,establishing special and general nature reserves,constituting monitoring system on the rare and special plant resources,enhancing scientific research,propaganda and education,reserving the existed environment of rare and endangered plants,and restoring vegetation.

Key words: Brontispa longissima, Experimental population, Temperature, Life table, Population parameter