| 剑叶金鸡菊对植物群落结构的影响 |
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| 引用本文： | 许媛,孙进,王军,王年爽,孙颖材,宫相忠. 剑叶金鸡菊对植物群落结构的影响[J]. 海洋湖沼通报, 2009, 0(2) |
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| 作者姓名： | 许媛 孙进 王军 王年爽 孙颖材 宫相忠 |
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| 作者单位： | 中国海洋大学,海洋生命学院,山东,青岛,266003 |
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| 基金项目： | 中国海洋大学本科生研究训练计划 |
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| 摘 要： | 剑叶金鸡菊(Coreopsis lanceolata)原产北美,19世纪德国占领青岛时作为花卉植物带入.现在已经逸生为青岛常见外来杂草.本文调查了剑叶金鸡菊入侵地植物群落的多样性指数和剑叶金鸡菊与群落中其它伴生植物的生态位重叠值.结果表明:(1)入侵样地植物群落物种多样性指数随剑叶金鸡菊重要值的增加而下降;(2)7、8月份,与剑叶金鸡菊生态位重叠值较大的物种有野青茅,画眉草,鸭跖草,狗尾草,美洲商陆;(3)剑叶金鸡菊有很强的竞争生存能力,其扩散受人为因素影响较大.
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| 关 键 词： | 剑叶金鸡菊 生态位 多样性 生态位重叠 |
INFLUENCES OF COREOPSIS LANCEOLATA ON PLANT COMMUNITY DIVERSITY IN QINGDAO |
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| XU Yuan,SUN Jin,WANG Jun,WANG Nianshuang,SUN Yingcai,GONG Xiangzhong. INFLUENCES OF COREOPSIS LANCEOLATA ON PLANT COMMUNITY DIVERSITY IN QINGDAO[J]. Transaction of Oceanology and Limnology, 2009, 0(2) |
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| Authors: | XU Yuan SUN Jin WANG Jun WANG Nianshuang SUN Yingcai GONG Xiangzhong |
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| Affiliation: | College of Marine Life Science;Ocean University of China;Qingdao 266003;China |
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| Abstract: | Coreopsis lanceolata,originating from North America,was introduced into China as a horticultural plant by German in 19th century.It is now a common exotic weed in Qingdao.Diversity index of plant communities invaded by Coreopsis lanceolata and its niche overlaps with other species in plant communities are investigated.The results are as follows:(1)The species diversity of plant communities decreases with expanding of the population of Coreopsis lanceolata;(2)in July and August,among the 36 species surveyed,... |
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| Keywords: | Coreopsis lanceolata niche diversity niche overlap |
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