| 黄土丘陵区子午岭短柄五加群落特征分析 |
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| 引用本文： | 刘富顺,张希彪,马世荣.黄土丘陵区子午岭短柄五加群落特征分析[J].植物研究,2009,29(4):475-480. |
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| 作者姓名： | 刘富顺 张希彪 马世荣 |
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| 作者单位： | 陇东学院生命科学系;中国科学院水土保持研究所黄土高原土壤侵蚀与旱地农业国家重点实验室; |
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| 基金项目： | 黄土高原土壤侵蚀与旱地农业国家重点实验室开放基金项目(10501-147);;甘肃省教育厅资助项目(049B-08) |
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| 摘 要： | 采用样方法研究了子午岭短柄五加(Acanthopanax brachypus)群落的特征。结果表明：短柄五加群落具有典型的温带植物区系特点，其科属组成分散，种类成分简单，为自然演替和人工改造双重作用下的不稳定群落；群落物种丰富度指数和多样性指数变化趋势基本一致，生态优势度指数表现出相反的趋势；群落垂直结构明显，乔木层以油松、辽东栎和侧柏为主，灌木层中短柄五加占绝对优势，草本层以披针叶苔草为主，该群落可分为油松—短柄五加—披针叶苔草+三褶脉紫菀群丛、油松+辽东栎—短柄五加—披针叶苔草群丛、辽东栎—短柄五加—披针叶苔草群丛、侧柏—短柄五加+铁杆蒿—披针叶苔草群丛4个类型；短柄五加的分布主要受水热条件限制，在水热条件相对较好的地段及林缘长势较好。
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| 关 键 词： | 短柄五加 群落特征 子午岭 黄土丘陵 |
Community Characteristics of Acanthopanax brachypus in Hilly Loess Regions |
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| LIU Fu-Shun ZHANG Xi-Biao, MA Shi-Rong.Community Characteristics of Acanthopanax brachypus in Hilly Loess Regions[J].Bulletin of Botanical Research,2009,29(4):475-480. |
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| Authors: | LIU Fu-Shun ZHANG Xi-Biao MA Shi-Rong |
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| Institution: | 1.Longdong University Department of Life Sciencesy;Qingyang 745000;2.State Key Laboratory of Erosion and Dryland Forming on the Loess Plateau;Institute of Soil and Water Conservation;Chinese Academy of Science;Yangling 712100 |
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| Abstract: | The characteristics of Acanthopanax brachypus community in Ziwu Mountain forest area were studied by the method of sampling.The results show that the seed plants flora of the A.brachypus community is of a temperate feature.The plant species is dispersed and simple.It is an instable community under natural and artificial impacts.The trend of indices of species diversity and abundance is in accordance.The indices of predominance are reverse.The vertical structure of A.brachypus community is clear.The tree lay... |
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| Keywords: | Acanthopanax brachypus community characteristics Ziwu Mountain hillyloess region |
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