摘要
在调查与统计广西雅长兰科植物自然保护区野生兰科植物区系的属、种组成及地理成分的基础上,分析其区系特点,该保护区兰科植物区系的特点是:(1)兰科植物种类丰富,居群数量大,迄今已知有113种(含5变种),隶属于44属,是广西兰科植物种类最丰富的保护区;(2)兰科植物地理成分复杂,热带性质明显,属的热带属(R)与温带属(T)数的比值(即R/T比值)达5.00;(3)兰科植物分布广泛,垂直分布以中海拔为多;(4)兰科植物生态类型丰富多样,特有性较强,并表现一定岩溶特有性。并提出应加强保护区兰科植物的科研、保护与管理工作的建议。
Based on the investigation and statistic on the genera, species and geography component of wild orchid flora in Yachang Nature Reserve of Guangxi, the flora characteristics were analyzed. The results were as follows： （1） Orchid species are abundant, population quantity is large, there are 113 species （including 5 varieties）, belonging to 44 genera of orchidaceae in all, this region is the most abundant reserve on orchid species in Guangxi; （2） Geography component of orchid is complexity, and show a tropical qualities, the rate of tropical genera and temperate genera （R/T） is 5.00; （3） The distribution of orchid is extensive, the vertical distribution is mainly in middle-altitude distribution;（4） The ecological types of orchids re abundant, and has a certain rock-melting peculiarity. Finally, some suggestions on the research, protection and management of orchid in this reserve were proposed in the paper.
出处
《广西农业生物科学》
CAS
CSCD
2007年第3期215-220,共6页
Journal of Guangxi Agricultural and Biological Science
基金
广西区林业局"雅长林区资源综合科学考察"项目
