| 济南市五峰山地区灌草丛草地植被生态位研究 |
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| 引用本文： | 王国良,吴波,杨秋玲,贾春林,盛亦兵.济南市五峰山地区灌草丛草地植被生态位研究[J].中国农学通报,2014,30(1):68-72. |
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| 作者姓名： | 王国良 吴波 杨秋玲 贾春林 盛亦兵 |
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| 作者单位： | 1. 山东省农业可持续发展研究所2. 山东省农业可持续发展所 |
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| 基金项目： | 山东省优秀中青年科学家科研奖励基金“鲁中南丘陵地区退化灌草丛草地植被恢复研究”(BS2010NY028);国家牧草产业技术体系(CARS-35) |
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| 摘 要： | 为了探索灌草丛草地植被在恢复过程中种群之间的功能关系，运用改进的Levins生态位宽度指数和Pianka生态位重叠指数，通过对不同坡位条件下样带的比较，分析了济南市五峰山地区灌草丛主要草地植被生态位变化以及物种间关系、群落结构对不同立地条件的响应。结果表明，在坡底、坡中、坡顶3种立地条件下，主要建群种野古草Arundinella anomala生态位宽度均表现为最大，其次是荩草Arthraxon hispidus；结缕草Zoysia japonica和黄背草Themeda japonica随着坡位的上升，生态位宽度随之下降，黄背草在坡顶的生态位宽度为0；山韭Allium senescens生态位宽度随着坡位的上升而增加，在坡顶生态位宽度最大。生态位重叠结果表明，生态位宽度较大的野古草、荩草和结缕草，其在3个坡位条件下的生态位重叠均高于其他物种；山韭与野古草、荩草和结缕草的生态位重叠最高出现在坡顶，这与山韭生态位宽度在坡顶最高有关；在坡顶黄背草与其他物种生态位重叠均为0，两者之间在坡顶不存在共生关系。五峰山地区主要草地植物种群生态位特征能较好地表征各植物的生态适应性和分布幅度。
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| 关 键 词： | 灰色关联度分析 灰色关联度分析 |
| 收稿时间： | 7/9/2013 12:00:00 AM |
| 修稿时间： | 8/7/2013 12:00:00 AM |
Grassland Vegetation Niche of Shrub-grass in Wufeng Mountain Area, Jinan City |
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| Wang Guoliang,Wu Bo,Yang Qiuling,Jia Chunlin,Sheng Yibing.Grassland Vegetation Niche of Shrub-grass in Wufeng Mountain Area, Jinan City[J].Chinese Agricultural Science Bulletin,2014,30(1):68-72. |
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| Authors: | Wang Guoliang Wu Bo Yang Qiuling Jia Chunlin Sheng Yibing |
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| Institution: | Wang Guoliang;Wu Bo;Yang Qiuling;Jia Chunlin;Sheng Yibing;Shandong Institute of Agricultural Sustainable Development; |
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| Abstract: | In order to research the functional relationship of grassland populations in the process of shrub-grass vegetation restoration, and based on Levins niche breadth and Pianka niche overlap indexes, grassland vegetation niche character and community structure were studied in different slope position in Wufeng Mountain Area, Jinan City. The results showed that: dominant specie Arundinella anomala had the maximum niche breath in bottom slope, middle slope and top slope, and the next was Arthraxon hispidus. The niche breadth of Zoysia japonica and Themeda japonica decreased with the rise of the slope. The niche breadth of Themeda japonica was 0 in top slope. The niche breadth of Allium senescens increased with the rise of the slope. The niche overlaps between Arundinella anomala and Arthraxon hispidus and Zoysia japonica with greater niche breadth were higher than others in three slope positions. The niche overlaps between Allium senescens and Arundinella anomala and Arthraxon hispidus and Zoysia japonica were higher in top slope than in middle slope and bottom slope. In top slope, the niche overlap between Themeda japonica and others was 0, and it showed that Themeda japonica had no symbiotic relationship with other species in top slope. The niche characteristics of grassland vegetation could better indicate their ecological adaptability and distribution range. |
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| Keywords: | shrub-grass niche niche breadth niche overlap grassland vegetation |
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