| 植被均匀度与高原鼠兔种群数量相关性研究 |
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| 引用本文： | 江小蕾.植被均匀度与高原鼠兔种群数量相关性研究[J].草业学报,1998(1). |
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| 作者姓名： | 江小蕾 |
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| 作者单位： | 甘肃省草原生态研究所 |
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| 摘 要： | 通过在高原鼠兔不同密度区对植被地上生物量、盖度、高度三项指标分布均匀度的测定与分析，对高原鼠兔种群密度与植被均匀度间的关系进行了研究。结果表明，凡高原鼠兔分布地，植被三项指标均表现为不均匀性分布，在一定范围内，鼠群密度随植被均匀度的下降而增加，两者间存在极显著线性相关关系。植被的斑块状极度破坏是诱使高原鼠兔迁入的重要因素，尤以斑块状裸地的诱迁作用为甚。
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| 关 键 词： | 高原鼠兔 植被均匀度 种群密度 斑块状破坏 诱迁作用 |
Relationship of Population Quantities of Plateau Pika With Vegetation Homogeneity |
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| Jiang Xiaolei.Relationship of Population Quantities of Plateau Pika With Vegetation Homogeneity[J].Acta Prataculturae Sinica,1998(1). |
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| Authors: | Jiang Xiaolei |
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| Abstract: | The relationship of vegetation homogeneity with plateau pika population quantities was detected by observation of aboveground biomass, vegetation coverage and height under different plateau pika densities. The results indicated that those 3 growth indexes did not perform a even distribution, the vegetation homogeneity went down with the increasing of plateau pika density. There was a significantly negative correlation between them. The patch broken, especially bare patch, is a main factor to cause plateau pika immigration. |
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| Keywords: | Ochotona curzoniae vegetation homogeneity population density patch broken immigration effect |
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