缙云山自然保护区木本植物区系特征  

Features of Woody Plant Flora in Jinyun Mountain Nature Reserve

作　　者：周先容[1] 刘玉成[2] 尚进[1] 江波[1] 

机构地区：[1]长江师范学院,涪陵408100 [2]西南大学

出　　处：《东北林业大学学报》2008年第12期32-35,共4页Journal of Northeast Forestry University

基　　金：重庆市教委重点建设基金资助(渝教高[2003]14号)

摘　　要：对缙云山自然保护区内木本植物区系的组成及其地理成分进行分析,并与相邻的大巴山、箬寮岘和泸沽湖等地进行比较。缙云山自然保护区共有木本植物112科,355属,694种,其中野生种类达92科,238属,427种。野生植物中蕨类植物1科,1属,1种;裸子植物4科,4属,4种;被子植物87科,233属,422种。区系的基本特征可归结为:木本植物种类丰富,在整个植物区系中占有重要的地位;区系起源古老,有许多古老的科属和孑遗种;地理成分复杂,热带成分略多于温带成分,具有明显的亚热带特性。与邻近6个地区木本植物区系亲缘关系的研究表明,缙云山与箬寮岘地区植物区系关系密切,而与泸沽湖地区的关系疏远。The floristie composition and the elements of woody plants in Jinyun Mountain Nature Reserve were analyzed by comparing the affinities with its neighbor regions, such as Dabashan, Ruoliaoxian, and Lugu Lake. A total of 694 species of woody plants belonging to 112 families and 355 genera were recorded in Jinyun Mountain Nature Reserve, among which there are 427 wild species of 92 families and 238 genera. Among the wild species of the woody plants, 1 species of ptefidophyte belongs to 1 family and 1 genus, 4 species of gymnosperms to 4 families and 4 genera and 427 species of angiosperms to 87 families and 233 genera. The floristic features of xylophyta in Jinyun Mountain were concluded as followings： the species of woody plants are very rich in the whole flora ; the flora with many ancient families and genera is of ancient origin; the floristic elements of the flora are very complex, tropical elements are slightly more than temperate elements, and the flora has close affinity with subtropical flora. Comparative analysis between Jinyun Mountain and other six regions indicates that the flora of Jinyun Mountain is more closely allied to that of Ruoliaoxian Nature Reserve and more distantly related to that of Lugu Lake.

关 键 词：木本植物 植物区系 分布区类型 缙云山 

分 类 号：Q948[生物学—植物学]