Moisture variations over the past millennium characterized by Qaidam Basin tree-ring delta O-18
文献类型：SCI/SSCI论文
| 作者 | Wang W. Z. ; Liu X. H. ; Xu G. B. ; Shao X. M. ; Qin D. H. ; Sun W. Z. ; An W. L. ; Zeng X. M. |
| 发表日期 | 2013 |
| 关键词 | tree-ring delta O-18 moisture variation medieval climate anomaly little ice age Qaidam Basin qinghai-tibetan plateau reconstruction precipitation 20th-century variability china cores |
| 英文摘要 | High-resolution tree-ring delta O-18 chronologies covering the last millennium, although scarce, are essential in understanding patterns of climatic changes in the northeastern region of the Qinghai-Tibetan Plateau. For this study, a tree-ring delta O-18 chronology with a temporal resolution of 3-years was developed from the long-lived Qilian juniper (Sabina przewalskii Kom.), extending back in time to AD 991. This long delta O-18 chronology was significantly correlated with the yearly delta O-18 in tree rings during the common period from 1800 to 2006, and was an effective proxy for relative humidity during the growing season. A low-frequency moisture pattern signified the occurrence of a slight drought during the Medieval Climate Anomaly, a marked occurrence of a wet period during the Little Ice Age, and a trend in increasing moisture levels, although lower than average, alongside the Twentieth Century warming trend. Comparisons to other hydroclimatic reconstructions indicate that this tree-ring delta O-18 chronology serves as a reliable paleo-humidity proxy for the Qaidam Basin as well as documenting details of past humidity levels in the region. |
| 出处 | Chinese Science Bulletin |
| 卷 | 58 |
| 期 | 32 |
| 页 | 3956-3961 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 1001-6538 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/30190]  |
| 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 | Wang W. Z.,Liu X. H.,Xu G. B.,et al. Moisture variations over the past millennium characterized by Qaidam Basin tree-ring delta O-18. 2013. |
入库方式： OAI收割
来源：地理科学与资源研究所
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