石灰岩珍稀濒危植物对酸性土壤的迁地适应性

Adaptability of Rare and Endangered Limestone Plants to Acidic Soil after Ex-situ Conservation

摘要:

通过半定量评价法，对81种石灰岩珍稀濒危植物迁移到桂林植物园酸性土壤上的适应性进行了研究。结果表明：适应的占54%, 基本适应的占27%, 欠适应的占11%, 不适应的占8%。引种的大部分石灰岩珍稀濒危植物能够适应或基本适应桂林植物园的生境条件，而在不能较好地适应迁移地生境的物种中，小部分是由于土壤因素的影响，其余则是因气候条件的差异所致。

Abstract:

Using semi-quantitative method, we investigated the adaptabilities of 81 rare and endangered limestone plant species introduced to acidic soil in Guilin Botanical Garden, China. The adaptive ones accounted for 54%, moderate adaptive ones accounted for 27% of the total, less adaptive ones for 11%, unadaptive ones for 8%. Most introduced rare and endangered limestone plants are found adaptive or moderate adaptive to the habitat condition of the Garden. Of those unadaptive and less adaptive species, only a small portion were affected by soil condition, whereas others were affected by the difference of climate condition.