The variations of stable-carbon isotope ratios in Qilian juniper in northwestern China
文献类型：期刊论文
| 作者 | Zhang, Youfu; Chen, Tuo; An, Lizhe; Li, Youbin |
| 刊名 | ENVIRONMENTAL GEOLOGY
 |
| 出版日期 | 2007-03-01 |
| 卷号 | 52期号:1页码:131-136 |
| 关键词 | Sabina przewalskii Kom delta C-13 isotopic fractionation atmospheric CO2 |
| ISSN号 | 0943-0105 |
| DOI | 10.1007/s00254-006-0466-z |
| 通讯作者 | Chen, Tuo(chentuo@lzb.ac.cn) |
| 英文摘要 | This is the first study of delta C-13 values that considers elevational influences of the Qilian mountains of China. The delta C-13 values of different parts of the Qilian juniper (Sabina przewalskii Kom.) at different elevations of the Qilian mountains, China, were measured. Relatively constant differences in delta C-13 values existed between the tree leaves and the trunk wood. No strong dependency of delta C-13 values on elevation was found. The temporal changes of wood delta C-13 values with directions, elevations and height in the tree showed general similarity. These results suggest that the isotopic effects of environmental factors expressed initially at the site of photosynthesis, i.e., the leaves could be contained in the trunks of a tree. Regardless of elevation, direction or height in the tree, wood delta C-13 values have been decreasing during the past 60 years. A composite 600-year delta C-13 chronology developed from four trees showed that delta C-13 values remain relatively constant before 1800. After 1800 AD, however, delta C-13 values became significantly more negative. The trend in wood delta C-13 values was consistent with that obtained for delta C-13 values in atmospheric CO2. The results showed that for Qilian juniper, tree-ring delta C-13 chronology could be established to ascertain fluctuations of the atmospheric delta C-13. |
| 收录类别 | SCI |
| WOS关键词 | TREE-RINGS ; ATMOSPHERIC CO2 ; DIFFERENT ALTITUDES ; PICEA-CRASSIFOLIA ; FOLIAR DELTA-C-13 ; VARIABILITY ; RECORD ; WOOD ; MOUNTAINS ; DIOXIDE |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Water Resources |
| WOS类目 | Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000244453600013 |
| 出版者 | SPRINGER |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2555892 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Chen, Tuo |
| 作者单位 | 1.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China 2.Lanzhou Univ, Sch Life Sci, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Youfu,Chen, Tuo,An, Lizhe,et al. The variations of stable-carbon isotope ratios in Qilian juniper in northwestern China[J]. ENVIRONMENTAL GEOLOGY,2007,52(1):131-136. |
| APA | Zhang, Youfu,Chen, Tuo,An, Lizhe,&Li, Youbin.(2007).The variations of stable-carbon isotope ratios in Qilian juniper in northwestern China.ENVIRONMENTAL GEOLOGY,52(1),131-136. |
| MLA | Zhang, Youfu,et al."The variations of stable-carbon isotope ratios in Qilian juniper in northwestern China".ENVIRONMENTAL GEOLOGY 52.1(2007):131-136. |
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来源：寒区旱区环境与工程研究所
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