赤水桫椤自然保护区种子植物区系特征分析  

Floristic Analysis of Seed Plants in Chishui Alsophila National Nature Reserve

作　　者：华波[1] 马建伦 邓洪平[1] 王茜[1] 刘开全[1] 

机构地区：[1]西南大学生命科学学院,三峡库区生态环境教育部重点实验室,重庆400715 [2]重庆金佛山国家级自然保护区管理局,重庆南川408400

出　　处：《西南师范大学学报（自然科学版）》2010年第5期167-172,共6页Journal of Southwest China Normal University(Natural Science Edition)

基　　金：重庆市自然科学基金计划资助项目(CSTC,2008BB5256)

摘　　要：在对赤水桫椤国家级自然保护区种子植物进行详细调查的基础上,对其生活型及植被类型、属的系数、科和属的分布区类型、保护和特有植物进行了统计分析.结果表明:1)保护区内植物类群丰富,种子植物区系成分复杂;2)种子植物生活型以草本植物为主,植被群落类型多样;3)优势科、优势属明显;4)植物区系以热带成分为主,具有向温带过渡的性质;5)种子植物区系起源古老;6)国家重点野生保护及贵州特有植物较为丰富.Based on the statistics and analysis of the life forms and vegetation types,generic coefficient,areal-types of families,genera and species,and significantly protected and endemic species in the present flora in Chishui Alsophila National Nature Reserve,the main findings of their floristic characteristics are summarized as follows： 1） The plant species are abundant,and the geographical elements are complex;2） Herb is the main life style of this flora,and the natural vegetation can be divided into 5 types;3） The dominant families and genera are prominent;4） The tropical floristic element is dominant and its flora also has a certain temperate elements;5） The flora of seed plants has an ancient origin and owns many single families,single genera and ancient composition and 6） The significantly protected species and endemic species are abundant.

关 键 词：赤水桫椤自然保护区 种子植物 区系特征 

分 类 号：Q948.2[生物学—植物学]