| 药用保护植物金荞麦的生态位研究 |
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| 引用本文： | 冀花存,何平,罗涛,张志勇,龚传秀,张春平. 药用保护植物金荞麦的生态位研究[J]. 西南大学学报(自然科学版), 2007, 29(6): 114-117,146 |
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| 作者姓名： | 冀花存 何平 罗涛 张志勇 龚传秀 张春平 |
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| 作者单位： | [1]西南大学生命科学学院,重庆400715 [2]三峡库区生态环境教育部重点实验室,重庆400715 [3]重庆市三峡库区植物生态与资源重点实验室,重庆400715 |
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| 基金项目： | 国家自然科学基金资助项目（30070080）. |
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| 摘 要： | 根据生境的不同,测定了重庆东部金荞麦及其群落的16个优势种中每一物种的多度、盖度和高度.利用重要值对金荞麦群落优势种生态位宽度和生态位重叠值进行研究.结果表明：①金荞麦的生态位宽度变化较大,趋向于泛化种;②金荞麦与其它优势种的重叠值也较高,表明它们对生境有很相近的资源需求;③金荞麦与其它物种种群可以和谐共存,维持较高的物种多样性.
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| 关 键 词： | 金荞麦 生态位宽度 生态位重叠 |
| 文章编号： | 1673-9868（2007）06-0114-05 |
| 修稿时间： | 2006-10-31 |
Niche Study on the Protected Medicinal Plant Fagopyrum cymosum (Trev.) Meisn. |
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| JI Hua-cun , HE Ping , LU Tao , ZHANG Zhi-yong , GNG Chuan-xiu, ZHANG Chong-ping of Eco-environments of Three Gorges Reservoir Region, Chongqing , China;. Chongqing Key Laboratory of Plant Ecology and Resources Research for Three Gorges Reservoir Region, Chongqing , China). Niche Study on the Protected Medicinal Plant Fagopyrum cymosum (Trev.) Meisn.[J]. Journal of southwest university (Natural science edition), 2007, 29(6): 114-117,146 |
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| Authors: | JI Hua-cun , HE Ping , LU Tao , ZHANG Zhi-yong , GNG Chuan-xiu, ZHANG Chong-ping of Eco-environments of Three Gorges Reservoir Region, Chongqing , China . Chongqing Key Laboratory of Plant Ecology Resources Research for Three Gorges Reservoir Region, Chongqing , China) |
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| Affiliation: | 1.School of Life Sciences, Southwest University, Chongqing 400715, China ;2.Key Laboratory ( Ministry of Education |
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| Abstract: | The niche characteristics,including niche breadth,coverage and overlap,were determined of 16 dominant grass species in the communities where Fagopyrum cymosum(Trev.)Meisn populated in the fields in eastern Chonqing.The niche breadth of F.cymosum was found to vary greatly,which indicated that the species wass widely distributed and strongly resource-obtainable.The niche breadth of the species increased with decreasing degree of the slope.F.cymosum also had high niche overlap with other dominant species in the studied communities,which showed that these dominant species had highly similar requirements for resources,but F.cymosum seemed to coexist nicely with other dominant species in the studied communities. |
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| Keywords: | Fagopyrum cymosum(Trev.)Meisn. niche breadth niche overlap |
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