| 闽北杉阔混交林群落物种多样性的研究 |
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| 引用本文： | 邓素梅.闽北杉阔混交林群落物种多样性的研究[J].福建林业科技,2005,32(3):20-23,30. |
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| 作者姓名： | 邓素梅 |
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| 作者单位： | 邵武故县国有林场,福建,邵武,354000 |
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| 摘 要： | 应用物种丰富度指数、多样性指数、均匀度指数、种间相遇机率、生态优势度等多种指标,将杉阔混交林群落划分为乔木层、灌木层、草本层、层间层,对不同层次群落的物种多样性进行研究。结果表明:不同层次群落的物种多样性不同,总的趋势是灌木层>乔木层>层间层>草本层。乔木层物种丰富,但生态优势度高于灌木层,个体数量产生一定程度的集中,物种多样性低于灌木层;灌木层生态优势度最低,物种组成丰富,表现出最大的物种多样性;草本层植物物种组成简单,生态优势度最大,物种多样性最低;层间层植物物种数量低于草本层,但生态优势度也低于草本层,其物种多样性高于草本层。该群落中灌木层在保持群落多样性方面所起的作用最大。
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| 关 键 词： | 杉阔混交林 物种多样性 生态优势度 |
| 文章编号： | 1002-7351（2005）03-0020-04 |
| 收稿时间： | 2005-06-22 |
| 修稿时间： | 2005-06-22 |
Study of Population Species Diversity of Cunninghamia lanceolata and Broadleaved Mixed Forest in North Fujian |
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| DENG Su-mei.Study of Population Species Diversity of Cunninghamia lanceolata and Broadleaved Mixed Forest in North Fujian[J].Journal of Fujian Forestry Science and Technology,2005,32(3):20-23,30. |
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| Authors: | DENG Su-mei |
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| Abstract: | The results showed that the species diversities were different in different layers,the total tendency was shrub layer>the arbor layer>vine layer>herb layer.The shrub layer played the biggest role in the aspect of keeping the population diversity. |
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| Keywords: | Cunninghamia lanceolata and broadleaved mixed forest species diversity ecological dominant |
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