基于不同取样尺度的油松针阔混交林物种多样性

邓宏兼; 李卫忠; 曹铸; 王庆; 王广儒

doi:10.11833/j.issn.2095-0756.2015.01.010

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基于不同取样尺度的油松针阔混交林物种多样性

邓宏兼 , 李卫忠 , 曹铸 , 王庆 , 王广儒

文章导航 > 浙江农林大学学报 > 2015 > 32(1): 67-75

邓宏兼, 李卫忠, 曹铸, 王庆, 王广儒. 基于不同取样尺度的油松针阔混交林物种多样性[J]. 浙江农林大学学报, 2015, 32(1): 67-75. doi: 10.11833/j.issn.2095-0756.2015.01.010

引用本文:

DENG Hongjian, LI Weizhong, CAO Zhu, WANG Qing, WANG Guangru. Species diversity based on sample size in a Pinus tabulaeformis mixed forest[J]. Journal of Zhejiang A&F University, 2015, 32(1): 67-75. doi: 10.11833/j.issn.2095-0756.2015.01.010

Citation:

DENG Hongjian, LI Weizhong, CAO Zhu, WANG Qing, WANG Guangru. Species diversity based on sample size in a Pinus tabulaeformis mixed forest[J]. Journal of Zhejiang A&F University, 2015, 32(1): 67-75. doi: 10.11833/j.issn.2095-0756.2015.01.010

基于不同取样尺度的油松针阔混交林物种多样性

doi: 10.11833/j.issn.2095-0756.2015.01.010

1.
西北农林科技大学林学院，陕西杨凌 712100;
2.
陕西省延安市黄龙山林业局，陕西黄龙 716000

基金项目:

国家自然科学基金资助项目（31170587）

详细信息

作者简介: 邓宏兼，从事森林可持续经营与评价研究。

通信作者: 李卫忠，副教授，博士，从事森林可持续经营与评价研究。

中图分类号: S718.5；Q145

Species diversity based on sample size in a Pinus tabulaeformis mixed forest

1.
College of Forestry, Northwest A & F University, Yangling 712100, Shaanxi, China;
2.
Forest Enterprise of Huanglongshan, Huanglong 716000, Shaanxi, China

摘要: 物种多样性是描述群落组成结构的重要指标，其空间格局及成因是物种多样性研究的基础和重要内容。利用陕西省黄龙山林区油松Pinus tabulaeformis针阔混交林1 hm2样地数据，对物种多样性随尺度的变化趋势，不同尺度下各功能层物种多样性特征，乔木层结构与林下植被物种多样性的关系进行了研究，得到以下结论：①丰富度指数、Simpson指数及Shannon-Wiener指数均随尺度增大先快速增大后趋于平缓，丰富度指数空间变异呈现为不规则变化，Simpson指数及Shannon-Wiener指数空间变异则随尺度增大先减小后趋于稳定，Pielou均匀度指数随尺度增大先急剧减小后趋于稳定，其空间变异则随尺度增大而逐步减小。②各功能层物种多样性的关系在5 000 m2及更大尺度上保持一致，灌木层具有最高的物种多样性，草本层物种丰富度较乔木层低，其物种分布均匀度则比乔木层高。③通过对乔木层密度及混交度与灌草层多样性各指数进行灰色关联度分析，得出乔木层结构与灌草层物种多样性具有明显的关联。图2表3参30
- 森林生态学 /
- 油松林 /
- 物种多样性 /
- 取样尺度 /
- 灰色关联度分析 /
- 混交度 /
- 黄龙山林区
Abstract: Species diversity is a key indicator of community composition with its spatial pattern and basic causes being important components of species diversity research. To study changing trends in species diversity on various scales, for characteristics of species diversity at all forest layers based on different scales, and for relationships between tree structure and species diversity of undergrowth vegetation, a 1 hm2 plot of Pinus tabulaiformis mixed forest on Huanglong Mountain was utilized. Analysis was conducted with Richness, Pielou, Simpson, and Shannon-Wiener Diversity Indexes. Also, the relationship between density and mingling degree of tree layers as well as species diversity indexes of shrub and herb layers were analyzed with a grey relational analysis. Results showed that （1） as the scale increased, the Richness had no clear trend, whereas Simpson, Shannon-Wiener and Pielou Diversity Indexes all stabilized after a certain scale, with their spatial variation decreased. （2） At scales of 5 000 m2 and larger, diversity index relationships between varying layers remained unchanged with the shrub layer having the greatest species diversity. The herb layer had the lowest species richness with higher uniformity for species distribution than tree layers. （3） The grey relational analysis showed that the structure of the tree layer was related to species diversity of the shrub and herb layers. The results showed that sampling scale should be taken into account when studying species diversity in a Pinus tabulaeformis mixed forest.［Ch, 2 fig. 3 tab. 30 ref.］
- forest ecology /
- Pinus tabulaeformis forest /
- species diversity /
- sampling size /
- grey relational analysis /
- mingling degree /
- Huanglong Mountain

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基于不同取样尺度的油松针阔混交林物种多样性

doi: 10.11833/j.issn.2095-0756.2015.01.010

1. 西北农林科技大学林学院，陕西杨凌 712100;

2. 陕西省延安市黄龙山林业局，陕西黄龙 716000

基金项目:

国家自然科学基金资助项目（31170587）

作者简介:
邓宏兼，从事森林可持续经营与评价研究。

通信作者: 李卫忠，副教授，博士，从事森林可持续经营与评价研究。

收稿日期: 2014-04-16
修回日期: 2014-05-15
刊出日期: 2015-02-20

中图分类号: S718.5；Q145

关键词:

摘要: 物种多样性是描述群落组成结构的重要指标，其空间格局及成因是物种多样性研究的基础和重要内容。利用陕西省黄龙山林区油松Pinus tabulaeformis针阔混交林1 hm2样地数据，对物种多样性随尺度的变化趋势，不同尺度下各功能层物种多样性特征，乔木层结构与林下植被物种多样性的关系进行了研究，得到以下结论：①丰富度指数、Simpson指数及Shannon-Wiener指数均随尺度增大先快速增大后趋于平缓，丰富度指数空间变异呈现为不规则变化，Simpson指数及Shannon-Wiener指数空间变异则随尺度增大先减小后趋于稳定，Pielou均匀度指数随尺度增大先急剧减小后趋于稳定，其空间变异则随尺度增大而逐步减小。②各功能层物种多样性的关系在5 000 m2及更大尺度上保持一致，灌木层具有最高的物种多样性，草本层物种丰富度较乔木层低，其物种分布均匀度则比乔木层高。③通过对乔木层密度及混交度与灌草层多样性各指数进行灰色关联度分析，得出乔木层结构与灌草层物种多样性具有明显的关联。图2表3参30

English Abstract

Species diversity based on sample size in a Pinus tabulaeformis mixed forest

1. College of Forestry, Northwest A & F University, Yangling 712100, Shaanxi, China;

2. Forest Enterprise of Huanglongshan, Huanglong 716000, Shaanxi, China

Received Date: 2014-04-16
Rev Recd Date: 2014-05-15
Publish Date: 2015-02-20

Keywords:

Abstract: Species diversity is a key indicator of community composition with its spatial pattern and basic causes being important components of species diversity research. To study changing trends in species diversity on various scales, for characteristics of species diversity at all forest layers based on different scales, and for relationships between tree structure and species diversity of undergrowth vegetation, a 1 hm2 plot of Pinus tabulaiformis mixed forest on Huanglong Mountain was utilized. Analysis was conducted with Richness, Pielou, Simpson, and Shannon-Wiener Diversity Indexes. Also, the relationship between density and mingling degree of tree layers as well as species diversity indexes of shrub and herb layers were analyzed with a grey relational analysis. Results showed that （1） as the scale increased, the Richness had no clear trend, whereas Simpson, Shannon-Wiener and Pielou Diversity Indexes all stabilized after a certain scale, with their spatial variation decreased. （2） At scales of 5 000 m2 and larger, diversity index relationships between varying layers remained unchanged with the shrub layer having the greatest species diversity. The herb layer had the lowest species richness with higher uniformity for species distribution than tree layers. （3） The grey relational analysis showed that the structure of the tree layer was related to species diversity of the shrub and herb layers. The results showed that sampling scale should be taken into account when studying species diversity in a Pinus tabulaeformis mixed forest.［Ch, 2 fig. 3 tab. 30 ref.］

引用本文: