| 青藏高原东部高寒草甸群落组分时间变化 |
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| 引用本文： | 巴雅尔塔,塔西·买合苏木.青藏高原东部高寒草甸群落组分时间变化[J].新疆师范大学学报(自然科学版),2010,29(1):1-3,9. |
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| 作者姓名： | 巴雅尔塔 塔西·买合苏木 |
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| 作者单位： | 伊犁师范学院,化学与生命科学学院,新疆,伊宁,835000 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 文章通过青藏高原东部高寒草甸群落封育样方、施肥样方、放牧样方中群落组分种的随时间变化研究,以此,探讨高寒草甸不同生境中群落结构变化。结果表明:封育样方和放牧样方中返青后物种数逐渐增加,从花期到结实期物种数达到最高值,施肥样方中从返青到开花、结实期之间物种数增加不显著。在封育样方和放牧样方之间多样性变化差异不显著,样方之间群落相似性高;施肥样方中物种数、多样性和均匀度显著(P0.05)降低,群落相似性差异显著(P0.05)。在三个实验生境中从6月到8月初群落物种数、多样性、均匀度处于高峰期,到8月中旬后群落指数开始降低。
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| 关 键 词： | 高寒草甸 群落组分 时间变化 显著性 |
The Temporal Variances of Community Components in the Eastern Part of Qinghai-Tibetan Alpine Meadow |
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| Bayaerta,Taxi·MAIHESUMU.The Temporal Variances of Community Components in the Eastern Part of Qinghai-Tibetan Alpine Meadow[J].Journal of Xinjiang Normal University(Natural Sciences Edition),2010,29(1):1-3,9. |
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| Authors: | Bayaerta Taxi·MAIHESUMU |
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| Abstract: | We observed the temporal variances of community components across the contrasted plots,the fertilized plots and the grazed plots in the Eastern Part of Qinghai-Tibetan alpine meadow,by which explored the alpine meadow community structure changes in different habitats.The results show: After sprouting,in both the contrasted and the grazed plots the species increased gradually,which were up to their upper amounts from flowering to fruiting phases;in the fertilized plots the species increases were not signific... |
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| Keywords: | Alpine meadow Community components Temporal variances Significance |
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