摘要
研究了贵州梵净山国家级自然保护区藤本植物的区系及生态特征。结果表明 :1本区计有藤本植物 45科 ,89属 ,2 5 3种 (含种下分类群 )。2本区藤本植物区系起源古老而复杂 ,藤本区系来源广泛。其中藤本种的分布区有 1 8个类型或亚型 ,热带区系成分占明显优势 ,为5 5 .96% ;温带区系成分占 42 .2 1 % ;特有分布类型占 1 .83%。 3本区多年生藤本和木质藤本占绝对优势 ,分别占 98.42 % (一年生占 1 .5 8% )和 79.0 5 % (草质占 2 0 .95 % ) ;常绿藤本占优势 ,为 5 9.44% ;落叶藤本占 37.75 % ;同时也有半常绿藤本 ,占 2 .81 %。 4本区藤本植物的分布与植被类型、土壤、海拔高度、湿度、温度等环境条件密切相关 ;本区不同的森林类型中藤本植物的种类也不同 ,其藤本植物种类随海拔升高而减少 ,低山林带、中山林带和高山林带分布着不同的藤本植物。 5初步编制了附生境的“梵净山藤本植物名录”。
The Fanjing Mountain National Nature Reserve is the highest peak in Wuling Mountain Range.It is located in North East of Guizhou Province,between 27°46′50″ and 28°1′30″ N,and 108°35′55″ and 108°48′30″ E,It is just the center of subtropics of China.It covers an area of Ca.600 km 2,altitude is from 500 m to 2570 5 m above sealevel.The species of feral liana in this region are rich.In this paper,the author has studied the flora and ecological features of liana in Fanjing Mt.The results showed:(1) There are 4 forms,38 varieties,5 subspecies,206 species,belonging to 89 genera and 45 families of climbing liana.(2) The liana flora are originated since ancient time and are very complex in this area;liana flora in Fanjing Mt.is complex and is characterized by the dominance of tropical floral elements.According to the classification of the areal types or subtypes by professor Li Xiwen (1996),liana species may be divided into 18 areal types or subtypes,among wich the tropical elements account for 55 96%,the temperate elements only 42 21% and the endemic 1 83% in Fanjing Mt.(3) Perennial liana account for 98 42%,and annual 1 58%;ligneous liana account for 79 05%,and herbaceous liana 20 95%;evergreen liana account for 59 44%,and defoliated liana 37 75%,and half evergreen liana 2 81%.(4) The distribution situation of the liana has very close relation with vegetation type,soil,elevation above sealevel,humidity and temperature.The different liana distribut in different forest types.A number of species of liana decrease with altitudes and increase in different forest types.Different liana can be divided into lower,middle and subalpine mountain types.(5) In last of this paper,the author has also compiled 'A List of Liana of the Fangjing Mountain.
出处
《武汉植物学研究》
CSCD
2001年第4期269-298,共30页
Journal of Wuhan Botanical Research
基金
贵州省自然科学基金资助项目〔编号 :黔基合计字 ( 1 994 ) 30 5 9〕
关键词
梵净山
国家级自然保护区
藤本植物
区系
名录
生态特性
Fanjing Mountain National Nature Reserve
Liana
Floristic relation
Ecologic distribution
A List of Liana
