摘要
采用野外调查和标本采集等方法,对湖南黄桑国家级自然保护区珍稀植物资源进行了调查。结果表明:(1)黄桑自然保护区有珍稀植物36科49属64种,其中国家级保护植物25种,占湖南省的31.52%;省级保护植物有39种,占湖南省的33.65%。(2)珍稀种子植物33科可划分成7个分布区类型,以热带分布相关的科为主(11科,33.33%),与北温带分布相关(9科,27.27%),与东亚分布相关(7科,21.22%);46属可划分成11种分布区类型,其中热带分布占优势(14属,30.43%),温带分布(11属,23.91%),中国特有(18属,7.39%),东亚分布(7属15.21%),东亚和北美洲间断分布(5属,10.86%),世界广布(1属,2.17%);(3)在生活型方面,以高位芽植物为主,49种占总种数的76.56%;以乔木为主,44种占总种数的68.75%。
According to the field investigations and collection of specimens during recent years in the Huangsang National Nature Reserve of Hunan Province, the investigation results showed that ： （ 1 ） There are 36 families, 49 genera, 64 species belonging to rare plants, including 25 species that listed in the national key protected wild plants list （ accounting for 31.52% in total national protected wild plants of Hurian）, 39 species that listed in the provincial key protected plants list （accounting for 33.65% in total provincial protected plants of Hunan） . （2） For floristic types of families, the 33 families were divided into seven distribution types, Tropical Asian and relative distribution types were dominated （11 families, 33.33% ） , followed by North Temperate （9 families, 27. 27% ） and East Asia and relative distribution （7 families, 21.22% ） . For floristic types of genera, 46 genera were divided into eleven distribution types, Tropical distri- bution is dominated （14 genera, 30. 43% ） , followed by Temperate distribution （11 genera, 23.91% ） , Chinese en- demic distribution （8 genera, 17.39% ）, East Asia distribution （7 genera, 15.21% ）, East Asia and North America discontinuous distribution （5 genera, 10. 86% ）, and Widespread distribution （1 genera, 2. 71% ） . （3） On the life form of plants, Phanerophytes was dominated with 49 species （ 76. 56% ） and Tree was dominated with 44 species （68.75%） .
出处
《湖南林业科技》
2015年第1期64-69,共6页
Hunan Forestry Science & Technology
基金
湖南黄桑国家级自然保护区综合科考项目
关键词
生物多样性
珍稀植物
调查
湖南黄桑
species diversity
rare plants
investigation
Huangsang of Hunan
