茂兰自然保护区掌叶木种群分布格局初步研究

Preliminary Study on Distribution Patterns of Handeliodendron bodinieri Population in Maolan Nature Conservation

对茂兰国家级自然保护区国家一级保护植物掌叶木(Handeliodendron bodinieri)种群的分布格局进行研究,结果表明:掌叶木种群呈集群分布和随机分布,人为干扰条件下克隆萌生分株种群呈集群分布。在缺水少土、岩石裸露率极高的喀斯特地貌生境中,在石面、石沟、石缝这些严酷生境中也有较多的掌叶木分布,表明掌叶木在石漠化喀斯特区的植被自然恢复中具有巨大潜力。

The distribution of Handeliodendron bodinieri, the first-class protected plant species in Maolan Na- ture Conservation, was investigated in the current work. The result showed that the distribution of H. bodi- nieri characterized in either clumped patterns or random patterns, however the clonal reproduction population was clumped pattern due to human disturbance. H. bodinieri mainly distributes in stony surface, stony gully and stony crevice among inclement microhabits of Karst area, revealing this species showed high potential for the plant rehabilitation in rocky Karst areas.