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云南澜沧地区热带山地雨林的群落学特征研究
引用本文:李宗善,唐建维,郑征,段文勇,朱胜忠,郭贤明.云南澜沧地区热带山地雨林的群落学特征研究[J].广西植物,2005,25(3):206-214.
作者姓名:李宗善  唐建维  郑征  段文勇  朱胜忠  郭贤明
作者单位:1. 中国科学院西双版纳热带植物园热带雨林生态系统定位研究站,云南,勐腊,666303
2. 西双版纳国家级自然保护区管理局,云南,景洪,666300
基金项目:国家科技部2001年度基础研究重大项目(2001CCB00600),国家自然科学基金项目(40075027、30170168)。
摘    要:在2500m2的固定样地上,共计有维管束植物100~105种,分属于45~47科、70~74属;胸径≥2cm的树种丰富度为69~74,ShannonWiener指数为3.5954~3.6267,Pielou均匀度指数为0.8426~0.8491。群落植物区系成分可分为10个类型,以热带区系成分为主,占83.17%~84.69%,其中又以泛热带和热带亚洲(印度-马来西亚)分布成分占优势,分别占33.67%~36.63%和24.75%~26.53%。群落以高位芽植物为主,其中又以中、小高位芽植物占优势,分别占50.00%~52.78%和22.12%~22.22%;在叶片生态学特征上,群落以中叶(66.67%~75%)、单叶(83.65%~85.19%)、纸质(61.11%~65.38%)、全缘(72.12%~72.22%)、非尾尖(86.11%~88.48%)为主。与西双版纳季节雨林相比,澜沧地区热带山地雨林体现出明显地向季风常绿阔叶林的过渡特征,如区系组成中的热带成分偏低而温带成分偏高,大高位芽植物以及大叶、复叶、全缘叶比例较低,而小高位芽植物以及小叶、单叶、非全缘叶比例较高。

关 键 词:群落学特征  热带山地雨林  澜沧  云南
文章编号:1000-3142(2005)03-0206-09
修稿时间:2004年4月28日

Analysis on the coenological characteristics of tropical montane rain forest in Lancang, South Yunnan
LI Zong-shan,TANG Jian-Wei,ZHENG Zheng,DUAN Wen-yong,ZHU Sheng-zhong,GUO Xian-ming.Analysis on the coenological characteristics of tropical montane rain forest in Lancang, South Yunnan[J].Guihaia,2005,25(3):206-214.
Authors:LI Zong-shan  TANG Jian-Wei  ZHENG Zheng  DUAN Wen-yong  ZHU Sheng-zhong  GUO Xian-ming
Institution:LI Zong-shan1,TANG Jian-wei 1*,ZHENG Zheng1,DUAN Wen-yong2,ZHU Sheng-zhong2,GUO Xian-ming2
Abstract:In order to understand the community characteristics of TMRF in Lancang Area,two permanent plots(50 m×50 m)of TMRF communities at different sites in Lancang were established. The grid method(10 m×10 m)was used to record all individuals with DBH greater than 2.0 cm in each plot. Shrub and herb species were investigated in nine 5 m×5 m and 2 m×2 m sub-quadrates respectively. Plant species composition,tree species diversity,physiognomic and structural characteristics of the communities were analyzed. The results showed that,in the 2 500 m2 plot,total number of plant species in the communities of TMRF was 100~105,representing 70~74 genera and 45~47 families. Tree species richness(DBH≥2 cm)is 69~74,while Shannon-Wiener and Pielou’s evenness indices are 3.595 4~3.626 7 and 0.842 6~0.849 1 respectively. The floral composition of the communities can be divided into 10 areal types and the tropical distribution composition accounts for 83.17%~84.69%. Among those floral areal types,Pantropic and Trop.Asia(Indo-Malesia)distributions are dominant,accounting for 33.67%~36.63% and 24.75%~26.53% respectively. Concerning about the life form spectra,phaenerophytes are dominant in the communities,and the proportion of meso and micro-phaenerophytes are very high,accounting for 50.00%~52.78% and 22.12%~22.22% respectively. With regard to the leaf characteristics,the communities are composed mainly of leaves which are mesophylls(66.67%~75%),single(83.65%~85.19%),papery(61.11%~65.38%),entire(72.12%~72.22%)and no-caud(86.11%~88.48%). Compared with tropical seasonal rain forest in Xishuangbanna,TMRF in Lancang shows obvious transitional characteristics to monsoon evergreen broad leaved forest,such as less tropical elements,mega-phaenerophytes and macrophylls,as well as less compound and entire leaves,but more temperate elements,micro-phaenerophytes,microphylls and nanophyll,as well as more simple and non-entire leaves.
Keywords:coenological characteristics  tropical montane rain forest  Lancang  Yunnan
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