太白山北坡落叶阔叶林物种多样性特征

Plant Diversity ›› 1997, Vol. 19 ›› Issue (02): 1-3.

• 研究论文 •

太白山北坡落叶阔叶林物种多样性特征

岳明；周虹霞

西北大学生物系，西安710069

出版日期:1997-04-25 发布日期:1997-04-25

DIVERSITY OF HIGHER PLANTS IN DECIDUOUS BROADLEAVED FORESTS ON THE NORTHERN SLOPE OF TAIBAI MOUNTAIN

Yue Ming, Zhou Hongxia

Biology Deportment Northwestern University, xian 710069

Online:1997-04-25 Published:1997-04-25

摘要/Abstract

摘要： 对太白山北坡落叶阔叶林从不同类型、层次的丰富度、均匀度和物种多样性指数及其与环境梯度的关系等方面进行了分析。结果表明，处于中山带的锐齿槲栎林及辽东栎林的多样性较高，高海拔与低海拔处的群落多样性较低。水热梯度对物种多样性有很大影响。植物生长型与物种多样性的关系表现为灌木层的多样性指数(D）和均匀度大于草本层，而草本层大于乔木层，草本层物种丰富度最大，灌木层次之，乔木层最小。不同群落间灌木层各多样性测度指标变异最小，乔木层和草本层变化幅度较大。

关键词: 太白山, 落叶阔叶林, 物种多样性

Abstract: This paper discusses species richness, evenness and species diversity of higher plants in deciduous broadleaved forests on the northern slope of Taibai Mountain. The results show that along the temperature and rainfall gradient, species diversity fluctuates greatly. The species diver-sity in the Quercus aliena var. acuteserata forest is the highest in six types of the forests. The spe-cies diversity index and evenness index for different strata is in the following order: shrub stratum > herb stratrum > tree stratum. As for the species richness, the order is herb stratum > shrub stratum > tree stratum. All of the five indices in shrub stratum are with very small variation among communities while those in tree stratum and herb stratum vary considerably.

Key words: Taibai Mountain

岳明；周虹霞. 太白山北坡落叶阔叶林物种多样性特征[J]. Plant Diversity, 1997, 19(02): 1-3.

Yue Ming, Zhou Hongxia. DIVERSITY OF HIGHER PLANTS IN DECIDUOUS BROADLEAVED FORESTS ON THE NORTHERN SLOPE OF TAIBAI MOUNTAIN[J]. Plant Diversity, 1997, 19(02): 1-3.

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太白山北坡落叶阔叶林物种多样性特征

DIVERSITY OF HIGHER PLANTS IN DECIDUOUS BROADLEAVED FORESTS ON THE NORTHERN SLOPE OF TAIBAI MOUNTAIN

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