| 不同海拔短穗兔耳草生长特征研究 |
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| 引用本文： | 贺宝珍,赵建中,周华坤. 不同海拔短穗兔耳草生长特征研究[J]. 安徽农业科学, 2008, 36(26) |
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| 作者姓名： | 贺宝珍 赵建中 周华坤 |
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| 作者单位： | 称多县草原站,青海称多,815160;青海省草原总站,青海西宁,810001;中国科学院西北高原生物研究所,青海西宁,810001 |
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| 基金项目： | 中国科学院西部行动计划二期项目第二课题 |
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| 摘 要： | 利用果洛州大武乡3 700~4 200 m的海拔梯度,分别在海拔3 700、3 800、3 900、4 000、4 100 m对短穗兔耳草生长特征进行定株观测,研究结果显示:短穗兔耳草的叶片数与高度变化一致,即在7月份达到最大值,而且随着海拔高度的逐渐增加而减少;短穗兔耳草的匍匐茎数量和单位长度干重变化基本一致,即在海拔为3 900 m处达到最大值,低于或超过此海拔时趋于减少;短穗兔耳草的基株干重和匍匐茎长度变化基本一致,即随着海拔高度的升高短穗兔耳草的匍匐茎长度逐渐减少。
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| 关 键 词： | 短穗兔耳草 叶片数 匍匐茎 |
Study on the Growth Characters of Lagotis brachystachya at Different Altitudes |
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| HE Bao-zhen et al. Study on the Growth Characters of Lagotis brachystachya at Different Altitudes[J]. Journal of Anhui Agricultural Sciences, 2008, 36(26) |
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| Authors: | HE Bao-zhen et al |
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| Abstract: | Characters of clonal growth of Lagotis brachystachya were studied at different altitudes(3700,3800,3900,4000 and 4100 m) in Dawu Town of Guoluo State.Research result showed that the number of leaves and the height of L.brachystachya reached the maximum in July and decreased with the increasing of altitude.The numbers of stolons and the dry weight changes of stolons per unit length of L.brachystachya reached maximum in the altitude of 3900 m.The length of stolons and dry weight of getents of L.brachystachya decreased with the increasing of altitude. |
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| Keywords: | Lagotis brachystachya Leaf number Stolon |
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