桂林岩溶石山阴香群落的数量分类及其物种多样性研究

张忠华<sup>1; 2</sup>; 胡 刚<sup>3</sup>; 梁士楚<sup>1*</sup>

引用本文:	张忠华, 胡刚, 梁士楚.桂林岩溶石山阴香群落的数量分类及其物种多样性研究[J].广西植物,2008,(2):191-196.[点击复制]
	ZHANG Zhong-Hua, HU Gang, LIANG Shi-Chu.Numerical classification and species diversity of Cinnamomum burmannii community in karst hills of Guilin[J].Guihaia,2008,(2):191-196.[点击复制]

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桂林岩溶石山阴香群落的数量分类及其物种多样性研究
张忠华^1,2, 胡刚³, 梁士楚^1*
1.广西师范大学生命科学学院, 广西桂林 541004;2.华东师范大学环境科学系, 上海 200062;3.中山大学生命科学学院, 广州 510275

摘要:

采用双向指示种分析(TWINSPAN),对桂林岩溶石山阴香群落进行数量分类,并应用Patrick丰富度指数、Simpson指数、Shannon-Wiener多样性指数以及Pielou均匀度指数比较分析了各群丛类型的物种多样性特征。结果表明:(1)阴香群落可划分为5种群丛类型,分别为:Ⅰ.阴香-山合欢-荩草群丛; Ⅱ.阴香-石山桂花+粗糠柴-麦冬群丛; Ⅲ.阴香-石山桂花-麦冬+凸脉苔草群丛; Ⅳ.阴香-石山桂花+小叶女贞-麦冬群丛; Ⅴ.阴香-香槐+石山桂花-剑叶凤尾蕨+普通假毛蕨群丛;(2)阴香群落的结构较为简单,物种多样性相对较低; 在5个群丛类型中,群丛Ⅲ和群丛Ⅴ的物种丰富度和多样性指数较高,群丛Ⅱ的多样性指数较低; 由于生境条件和人为干扰程度的不同,群丛类型的物种多样性存在一定差异。

关键词: 阴香群落 TWINSPAN分类物种多样性群丛类型桂林

DOI：

分类号:Q948

基金项目:

Numerical classification and species diversity of Cinnamomum burmannii community in karst hills of Guilin

ZHANG Zhong-Hua^1,2, HU Gang³, LIANG Shi-Chu^1*

1.College of Life Sciences, Guangxi Normal University, Guilin 541004, China;2.Department of Environmental Science, East China Normal University, Shanghai 200062, China;3.College of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China 1.College of Life Sciences, Guangxi Normal University, Guilin 541004, China; 2.Department of Environmental Science, East China Normal University, Shanghai 200062, China; 3.College of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China

Abstract:

Classification of Cinnamomum burmannii communities in karst hills of Guilin was conducted by Two-way Indicator Species Analysis(TWINSPAN),and species diversity was analyzed by various kinds of diversity indices such as the Patrick's richness index(R),Simpson index(D),Shannon-Wiener index(H)and Pielou's evenness index(E). The results show that:(1)the Cinnamomum burmanniicommunities could be divided into five types:Ⅰ.Ass.Cinnamomum burmannii-Albizzia kalkora-Arthraxon hispidus; Ⅱ.Ass.Cinnamomum burmannii-Osmanthus fordii+Mallotus philippinensis-Ophiopogon japonicus; Ⅲ.Ass.Cinnamomum burmannii-Osmanthus fordii-Ophiopogon japonicus+Carex lanceolata; Ⅳ.Ass.Cinnamomum burmannii-Osmanthus fordii+Ligustrum quihoui-Ophiopogon japonicus; Ⅴ.Ass.Cinnamomum burmannii-Cladrastis wilsonii+Osmanthus fordii-Pteris ensiformis+Pseudocyclosorusksubochthodes.(2)the community structure was simple,and species diversity indices were relatively lower. In the five community associations,species diversity indices of association Ⅲ and Ⅴ were higher than others,those of associationⅡ were relatively lower. Influenced by habitat conditions and human disturbance,species diversity was different among the association types.

Key words: Cinnamomum burmannii community TWINSPAN classification species diversity association type Guilin