藏东南川滇高山栎群落物种多样性格局
通过样方调查,采用物种多样性指数和DCCA排序方法,并结合种间联结、种间协变和系统聚类分析,对藏东南川滇高山栎（Quercus aquifolioides）群落的物种多样性及其分布格局进行了研究。结果表明：1）川滇高山栎群落物种数（丰富度）随海拔增高而降低,一定程度的人为干扰（即中度干扰）、较大的林分郁闭度和较矮的林冠层有利于群落物种多样性的增加;另外干旱河谷现象对群落物种多样性格局也有影响。2）群落各层次间物种多样性呈现出草本层〉灌木层〉乔木层的特征。3）群落种间较高的正负关联比理论上说明川滇高山栎群落结构较为稳定,生态习性和分布差异造就了种间的联结和协变格局。海拔梯度和年均降水量是影响各种...
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| Published in | 林业科学研究 Vol. 25; no. 6; pp. 703 - 711 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
西藏农牧学院,西藏林芝860000
2012
西藏高原生态研究所,西藏林芝860000%西藏高原生态研究所,西藏林芝,860000%西藏农牧学院,西藏林芝,860000 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1001-1498 |
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| Abstract | 通过样方调查,采用物种多样性指数和DCCA排序方法,并结合种间联结、种间协变和系统聚类分析,对藏东南川滇高山栎（Quercus aquifolioides）群落的物种多样性及其分布格局进行了研究。结果表明：1）川滇高山栎群落物种数（丰富度）随海拔增高而降低,一定程度的人为干扰（即中度干扰）、较大的林分郁闭度和较矮的林冠层有利于群落物种多样性的增加;另外干旱河谷现象对群落物种多样性格局也有影响。2）群落各层次间物种多样性呈现出草本层〉灌木层〉乔木层的特征。3）群落种间较高的正负关联比理论上说明川滇高山栎群落结构较为稳定,生态习性和分布差异造就了种间的联结和协变格局。海拔梯度和年均降水量是影响各种群空间分布的主要因素。4）结合种-环境DCCA排序结果、种间关系和聚类分析结果可将川滇高山栎群落中除川滇高山栎之外的48个主要物种划分为4个生态种组。 |
|---|---|
| AbstractList | 通过样方调查,采用物种多样性指数和DCCA排序方法,并结合种间联结、种间协变和系统聚类分析,对藏东南川滇高山栎（Quercus aquifolioides）群落的物种多样性及其分布格局进行了研究。结果表明：1）川滇高山栎群落物种数（丰富度）随海拔增高而降低,一定程度的人为干扰（即中度干扰）、较大的林分郁闭度和较矮的林冠层有利于群落物种多样性的增加;另外干旱河谷现象对群落物种多样性格局也有影响。2）群落各层次间物种多样性呈现出草本层〉灌木层〉乔木层的特征。3）群落种间较高的正负关联比理论上说明川滇高山栎群落结构较为稳定,生态习性和分布差异造就了种间的联结和协变格局。海拔梯度和年均降水量是影响各种群空间分布的主要因素。4）结合种-环境DCCA排序结果、种间关系和聚类分析结果可将川滇高山栎群落中除川滇高山栎之外的48个主要物种划分为4个生态种组。 S718.54; 通过样方调查,采用物种多样性指数和DCCA排序方法,并结合种间联结、种间协变和系统聚类分析,对藏东南川滇高山栎(Quercus aquifolioides)群落的物种多样性及其分布格局进行了研究.结果表明:1)川滇高山栎群落物种数(丰富度)随海拔增高而降低,一定程度的人为干扰(即中度干扰)、较大的林分郁闭度和较矮的林冠层有利于群落物种多样性的增加;另外干旱河谷现象对群落物种多样性格局也有影响.2)群落各层次间物种多样性呈现出草本层＞灌木层＞乔木层的特征.3)群落种间较高的正负关联比理论上说明川滇高山栎群落结构较为稳定,生态习性和分布差异造就了种间的联结和协变格局.海拔梯度和年均降水量是影响各种群空间分布的主要因素.4)结合种-环境DCCA排序结果、种间关系和聚类分析结果可将川滇高山栎群落中除川滇高山栎之外的48个主要物种划分为4个生态种组. |
| Author | 王国严 罗建 徐阿生 鲁闯 |
| AuthorAffiliation | 西藏农牧学院,西藏林芝860000 西藏高原生态研究所,西藏林芝860000 |
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| Author_FL | LU Chuang WANG Guo-yan XU A-sheng LUO Jian |
| Author_FL_xml | – sequence: 1 fullname: WANG Guo-yan – sequence: 2 fullname: LUO Jian – sequence: 3 fullname: XU A-sheng – sequence: 4 fullname: LU Chuang |
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| Copyright | Copyright © Wanfang Data Co. Ltd. All Rights Reserved. |
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| DocumentTitleAlternate | Pattern of Plant Species Diversity of Quercus aquifolioides Community in Southeast Tibet, China |
| DocumentTitle_FL | Pattern of Plant Species Diversity of Quercus aquifolioides Community in Southeast Tibet, China |
| EndPage | 711 |
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| Keywords | DCCA 藏东南 川滇高山栎 物种多样性 |
| Language | Chinese |
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| Notes | Southeast Tibet ; Quercus aquifolioides ; species diversity ; DCCA WANG Guo-yan, LUO Jian , XU A-sheng , LU Chuang （1. Tibet Agricultural and Animal Husbandry College, Nyingchi 860000, Tibet, China; 2. Research Institute of Tibet Plateau Ecology, Nyingehi 860000, Tibet, China） 11-1221/S The special topographic and climate conditions of Himalaya-Hengduan Mountains gestate a rich forest resource, and plant and animal diversity in southeast Tibet. Through plot investigation, the species diversity and spatial distribution of Quercus aquifolioides community in southeast Tibet were studied using diversity index and detrended canonical correspondence analysis （DCCA） combining with specific association, interspecific covariation and systematic cluster analysis. The results indicated that ： （ 1 ） The species richness decreased with the raise of altitude, but a certain degree of human disturbance （ i. e. Pmderate disturbance）, higher canopy density and lower canopy layer usually increased the species diversity. In additio |
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| PublicationTitle | 林业科学研究 |
| PublicationTitleAlternate | Forest Research |
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| PublicationYear | 2012 |
| Publisher | 西藏农牧学院,西藏林芝860000 西藏高原生态研究所,西藏林芝860000%西藏高原生态研究所,西藏林芝,860000%西藏农牧学院,西藏林芝,860000 |
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| Snippet | 通过样方调查,采用物种多样性指数和DCCA排序方法,并结合种间联结、种间协变和系统聚类分析,对藏东南川滇高山栎（Quercus aquifolioides）群落的物种多样性及其分布格局进行... S718.54; 通过样方调查,采用物种多样性指数和DCCA排序方法,并结合种间联结、种间协变和系统聚类分析,对藏东南川滇高山栎(Quercus aquifolioides)群落的物种多样性及其分布... |
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| Title | 藏东南川滇高山栎群落物种多样性格局 |
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