为了有效保护珍稀濒危植物, 植物园在迁地保护过程中开始关注迁地保护和野外回归相结合, 其拥有的活植物资源、知识、技能和设施可为植物回归提供重要支撑。早期的植物回归实践注重用园艺手段增加种苗存活率, 后来强调了种群恢复, 并把植物回归放到生态系统恢复的背景下考虑, 近几年则强调了全球变化背景下的植物回归。目前, 全世界植物园的回归研究和实践进展主要集中在影响回归植株定居的因素、回归的遗传多样性、全球变化对回归的影响和成功回归的标准等四方面。在人类干扰和全球变化情景下, 植物园需要综合考虑就地保护、迁地保护和回归三位一体的综合保育体系, 以实现植物多样性的有效保护。

In order to effectively protect rare and endangered plants, botanical gardens have moved from ex situ conservation to the combination of ex situ conservation and reintroduction. Its living collections, knowledge, skills, and facilities can be used in the process of plant reintroduction. Early plant reintroduction practices have focused on increasing the survival rate of seedlings or seeds by means of horticulture, and later emphasized population recovery and plant reintroduction in the context of ecosystem restoration. In recent years, emphasis has been placed on plant reintroduction in the context of global change. Nowadays, plant reintroduction research and practice at botanical gardens is mainly focused on factors affecting reintroduced individuals, genetic diversity associated with reintroduction, the impacts of global change on reintroduction, and the criteria for successful reintroduction. With human disturbance and global change, botanical gardens need to take into account integrating in situ conservation, ex situ conservation, and reintroduction to effectively protect plant diversity.