2024年12月2日 星期一
江西三清山华东黄杉群落的组成及结构分析
Analysis on community composition and structure of Pseudotsuga gaussenii in Sanqing Mountain of Jiangxi Province
2007年 第16卷 第3期 页码[46-52]    下载全文[1.1MB]  
摘要

对江西三清山国家重点保护植物华东黄杉(Pseudotsuga gaussenii Flous)群落的组成和结构进行了调查研究。结果表明,该华东黄杉群落主要以杜鹃花科(Ericaceae)、松科(Pinaceae)、山茶科(Theaceae)、壳斗科(Fagaceae)、蔷薇科(Rosaceae)、樟科(Lauraceae)和冬青科(Aquifoliaceae)等种类为主,其中热带属和温带属种类分别占54.1%和45.9%,群落优势种及建群种以温带属为主。猴头杜鹃(Rhododendron simiarum Hance)、岩柃(Eurya saxicola H.T.Chang)、台湾松(Pinus taiwanensis Hayata)及华东黄杉在群落中的重要值较高,分别为61.35、45.04、37.61和34.20;年龄结构显示,华东黄杉、台湾松和猴头杜鹃等种群均有一定的衰退趋势。群落多样性指数为3.66,表明该群落介于南亚热带常绿阔叶林与中亚热带常绿阔叶林之间。群落分层明显,乔木层可分为3层,华东黄杉为最顶层,最高可达24 m;物种的生活型以高位芽植物占绝对优势,约76.25%,地上芽植物、地面芽植物和一年生植物分别占5.00%、17.50%和1.25%。

Abstract

The community composition and structure of Pseudotsuga gaussenii Flous in Sanqing Mountain of Jiangxi Province were investigated and analyzed. The community is composed mainly of tropical genera (54.1%) and temperate genera(45.9%), and typical families are Ericaceae, Pinaceae, Theaceae, Fagaceae, Rosaceae, Lauraceae and Aquifoliaceae, etc. The dominant species in the community are Rhododendron simiarum Hance, Eurya saxicola H.T.Chang, Pinus taiwanensis Hayata and P. gaussenii, with the important values of 61.35, 45.04, 37.61and 34.20respectively.The population age structure of R. simiarum, Pinus taiwanensis and P. gaussenii belongs to declining population. The Shannon-Wiener index of the community reaches to 3.66, which is between evergreen broad-leaved forests in south sub tropic and in middle sub tropic. In uprightness structure of the community,  arborous layer is divided into three layers, the first one is mainly made up of P. gaussenii, its tallest tree reaches to 24m.Phanerophyte is the abundant life form. (76. 25%), while the percentage of chamaephyte, hemi-cryptophyte and annual plantis 5.00%, 17.50% and 1.25% respectively.

关键词三清山; 华东黄杉; 群落组成; 群落结构; 分析;
Key wordsSanqing Mountain; Pseudotsuga gaussenii Flous; community composition; community structure; analysis
作者郭 微1,沈如江1,吴金火2,廖文波1 ,彭少麟1,陈 晖2
所在单位1.有害生物控制与资源利用国家重点实验室,中山大学生命科学学院,广东广州510275;
2.江西省三清山风景名胜区管理委员会,江西上饶334000
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基金项目江西省三清山风景名胜区管理委员会“三清山生物多样性综合考察”资助项目;