Moisture availability over the past five centuries indicated by carbon isotopes of Tamarix taklamakanensis leaves in a nebkha profile in the Central Taklimakan Desert, NW China
文献类型：SCI/SSCI论文
| 作者 | Lang L. L. ; Wang X. M. ; Hua T. ; Zhang C. X. |
| 发表日期 | 2013 |
| 关键词 | Moisture availability Coppice dunes delta C-13 Aridity Tarim Basin northwest china ice-age dunes water plateau climate river degradation calibration morphology |
| 英文摘要 | We inferred moisture availability changes from 1555 to 2010 in the Central Taklimakan Desert (NW China) using Chinese tamarisk (Tamarix taklamakanensis) litter deposited within a nebkha that developed in this region. The litter delta C-13 trends revealed fluctuations of moisture availability: From 1555 to 1785, moisture availability was higher than the long-term average, but from 1555 to 1570, 1585 to 1620, 1640 to 1660, 1675 to 1700, and 1730 to 1755, this region experienced periods with lower than average moisture availability. From 1785 to 1850, significant moisture availability changes occurred, and the region experienced the lowest moisture availability since 1555. From 1850 to the present, the delta C-13 trends suggested that moisture availability increased. Our results also showed that although moisture availability in this region is controlled by precipitation and evaporation in the Central Taklimakan Desert, temperature variations in the adjacent Kunlun Mountains (whose glacier and snowmelt runoff are dominant water sources for the study area) were potentially more important. Water from these mountains plays an important role in moisture availability due the region's extremely low precipitation. In addition, although previous studies suggested that the Tarim Basin and its adjacent areas experienced a wet climate for the past several centuries, this suggestion was inconsistent with the reconstructed moisture availability changes in the Central Taklimakan Desert. The moisture availability in the Central Taklimakan was more closely related to temperature variations in the adjacent mountain regions. (C) 2013 Elsevier B.V. All rights reserved. |
| 出处 | Aeolian Research |
| 卷 | 11 |
| 页 | 101-108 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 1875-9637 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/30465]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Lang L. L.,Wang X. M.,Hua T.,et al. Moisture availability over the past five centuries indicated by carbon isotopes of Tamarix taklamakanensis leaves in a nebkha profile in the Central Taklimakan Desert, NW China. 2013. |
入库方式： OAI收割
来源：地理科学与资源研究所
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