| 岷江源区祁连圆柏林线交错带的物种多样性 |
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| 引用本文： | 陈文年.岷江源区祁连圆柏林线交错带的物种多样性[J].四川教育学院学报,2012(10):122-124. |
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| 作者姓名： | 陈文年 |
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| 作者单位： | 内江师范学院生命科学系,四川内江641112 |
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| 基金项目： | 四川省教育厅科研基金项目（IOZC006）;内江师范学院博士科研基金项目 |
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| 摘 要： | 在岷江源头地区,采用样方调查法研究了祁连圆柏林线附近的物种多样性。结果表明,灌木层的多样性以高山灌丛高一些,交错带次之,祁连圆柏林最低;对于草本层而言,则以交错带多样性最高,高山灌丛次之,祁连圆柏林最低;而总体物种多样性则是林线交错带最高,比祁连圆柏林和高山灌丛分别高出28.2%和16.7%。交错带较高的总体物种多样性主要是由于草本层较高的物种多样性造成的。
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| 关 键 词： | 岷江源头地区 植被 祁连圆柏林 林线交错带 物种多样性 草本层 灌木层 盖度 |
Species Diversity of Sabina przewalskii Timberline Ecotone in the Source Area of the Min River |
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| Institution: | CHEN Wen - nian (Department of Life Science, Neijiang Normal University, Neijiang Siehuan 641112, China) |
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| Abstract: | Species diverslt？ of Sahina przewalskii timberline ecotone in the source area of the Min River is studied with sample plot method. As far as shrub layer is concerned, alpine thicket possesses higher species diversity than tim- berline ecotone and Sabina przewalskii stand. As for the species diversity of herbaceous layer, timberline ecotone stands the first, alpine thicket the second and Sabina przewalskii stands the last. In addition, total species diversity of timberline ecotone is 28.2% and 16.7% higher than that of Sabina przewalskii stand and alpine thicket, respectively, to which her- baceous layer contributes a lot. |
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| Keywords: | source area of the Min River vegetation Sabina przewalskii timberline ecotone species diversity her-baceous layer coverage |
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