| 西藏高原植物元素背景值的初步研究 |
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| 引用本文： | 刘普灵,田均良,李雅琦,张梅花.西藏高原植物元素背景值的初步研究[J].西北植物学报,1994,14(4). |
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| 作者姓名： | 刘普灵 田均良 李雅琦 张梅花 |
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| 作者单位： | 中国科学院水利部西北水土保持研究所 |
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| 摘 要： | 根据西藏植物样品中化学元素的测定结果，提出了西藏高原植物中３６种元素的背景值并与全球平均值作了比较。初步研究了西藏高原植物化学元素的特点，认为本区植物有营养元素亏缺现象，营养水平较低；Ａｌ，Ｔｉ，Ｃｒ，Ｂａ的含量偏高；大多数元素含量高低与其生长地的土壤环境有关；植物地上部分元素含量较根系丰富，不同种之间的差异主要表现在营养元素上。
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| 关 键 词： | 西藏高原，植物，背景值 |
A PRELIMINARY STUDY OF ELEMENT BACKGROUND OF PLANTS ON THE XIZANG PLATEAU |
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| Liu Puling,Tian Junliang,Li Yaqi and Zhang Meihua.A PRELIMINARY STUDY OF ELEMENT BACKGROUND OF PLANTS ON THE XIZANG PLATEAU[J].Acta Botanica Boreali-Occidentalia Sinica,1994,14(4). |
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| Authors: | Liu Puling Tian Junliang Li Yaqi and Zhang Meihua |
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| Abstract: | The plants sampled from Xizang Plateau have been determined in this study. The back-groud values of 36 elements have been given,and compared with average content of the wholeworld plant.The preliminary results suggest that the nutrition level of plants within this districtis lower and short of the nutrition elements;the contents of Al,Ti,Cr and Ba are higher;ele-mental content level for most of elements depend on mainly local soil factors and elemental con-tents of stems are higher than that of roots. The differences between various species of plants oc-cur mainly in nutrition elements. |
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| Keywords: | Xizang Plateau plants background |
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