铜壁关自然保护区兰科植物多样性分析  

Analysis on Species Diversity of Orchidaceae in Tongbiguan Nature Reserve,Yunnan Province

作　　者：赵明旭[1] 杜凡[1] 岩香甩[1] 和霞[1] 庄翠珍[1] 张桥蓉[1] 

机构地区：[1]西南林业大学资源学院,云南昆明650224

出　　处：《西南林学院学报》2011年第3期31-34,44,共5页Journal of Southwest Forestry College

基　　金：西南山地森林资源保育与利用省部共建教育部重点实验室资助;西南林业大学植物学校级重点学科建设项目资助

摘　　要：对云南省铜壁关自然保护区兰科植物调查数据分析得出,该保护区兰科植物多样性具有如下特点:物种多样性丰富,居群数量大,生活型齐全;共有兰科植物74属250种,附生兰163种,地生兰82种,腐生兰5种;分布广泛,生境复杂多样;垂直海拔分布呈现"中间膨胀"的格局,各生活型变化趋势一致;中国特有种较少,共30种;印缅区系成分显著,与缅甸共有种达131种;东界在中国只分布到云南的有45种,铜壁关特有种2种。An analysis on the data of the plant species in family Orchidaceae collected from the survey in the Tongbiguan Nature Reserve, Yunnan Province showed that the nature reserve was characterized with rich species diversity, large population and complete life forms of orchid plants. The survey showed there were totally 250 spe- cies belonging to 74 genera of orchid plants, among which 163 species were epiphytic, 82 were sedentary and 5 were saprophytic. It was showed that the orchid plants were widely distributed with diversified habitats. The vertical distribution of orchid plants presented a hump-shaped pattern along the elevation gradient. The change tendency of the terrestrial life form, epiphytic and saprophytic life form orchid plants was about the same. There were only 30 species endemic to China. The composition of India-Burma flora was conspicuous, and there were 131 species com- monly distributed in China and Myanmar. Within the eastern boundary of distribution in China, there were 45 species distributed in Yunnan Province, among which 2 of the 45 species were endemic in Tongbiguan Nature Reserve.

关 键 词：兰科植物 多样性 铜壁关自然保护区 云南 

分 类 号：S717.1[农业科学—林学] Q948.5[生物学—植物学]