| 五台山华北落叶松群落优势种群生态位研究 |
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| 引用本文： | 董国防,上官铁梁,郭东罡.五台山华北落叶松群落优势种群生态位研究[J].山西大学学报(自然科学版),2011,34(1):158-162. |
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| 作者姓名： | 董国防 上官铁梁 郭东罡 |
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| 作者单位： | 山西大学环境与资源学院,山西,太原,030006 |
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| 基金项目： | 山西省自然科学基金(2006011095) |
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| 摘 要： | 应用Shannon-Wiener生态位宽度指数和Petraitis生态位特定重叠指数,研究了五台山华北落叶松群落24个优势种群的生态位宽度和生态位重叠,结果表明:华北落叶松、披针叶苔草、峨参、舞鹤草等的生态位宽度最大,山杨、风毛菊、茖葱、山刺玫等的生态位宽度较小,具有较大的生态位宽度值的耐干旱贫瘠土壤的种群在山体中下部生长,表明其群落环境呈现出旱化和贫瘠化倾向;24个优势种群构成的576个种对中,有206个种对间存在生态位特定重叠,占整个种对数的37.3%,表明优势种群间生态位特定重叠并不普遍,相互之间存在着生态位分离的现象,整个群落不存在强烈的竞争;24个优势种群间并不存在完全普遍重叠.
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| 关 键 词： | 五台山 华北落叶松 优势种群 生态位宽度 生态位重叠 |
Niche of Dominant Species of Larix principis-rupprechtii Communities in Wutai Mountain,Shanxi |
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| DONG Guo-fang,SHANGGUAN Tie-liang,GUO Dong-gang.Niche of Dominant Species of Larix principis-rupprechtii Communities in Wutai Mountain,Shanxi[J].Journal of Shanxi University (Natural Science Edition),2011,34(1):158-162. |
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| Authors: | DONG Guo-fang SHANGGUAN Tie-liang GUO Dong-gang |
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| Institution: | DONG Guo-fang,SHANGGUAN Tie-liang,GUO Dong-gang(College of Environment and Resources,Shanxi University,Taiyuan 030006,China) |
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| Abstract: | Shannon-Wiener's index and Petraitis's methods were used to analyze the niche breadth and overlap among 24 dominant species in the Larix principis-rupprechtii communities in Wutai Mountain,Shanxi.The results indicated that the species with sufficiently overwhelmingly broader niche breadth included Larix principis-rupprechtii,Carex lanceolata,Anthriscus sylvetris and Maianthemum bifolium,in contrast to those with the narrower niche breadth including Populus davidiana,Saussurea japonica,Allium victorialis and... |
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| Keywords: | Wutai mountain dominant species niche breadth niche overlap Larix principis-rupprechtii |
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