| Holocene moisture changes in western China, Central Asia, inferred from stalagmites | |
| Cai, Yanjun1,2; Chiang, John C. H.; Breitenbach, Sebastian F. M.3,4,5; Tan, Liangcheng1,2; Cheng, Hai2,6; Edwards, R. Lawrence6; An, Zhisheng1,2 | |
| 2017-02-15 | |
| 发表期刊 | QUATERNARY SCIENCE REVIEWS
 |
| 卷号 | 158期号:2017页码:15-28 |
| 文章类型 | Article |
| 摘要 | Central Asia lies at the convergence between the Mediterranean and Asian monsoon climates, and there is a complex interaction between the westerlies with the monsoon to form the climate of that region and its variability. The region is highly vulnerable to changes in rainfall, highlighting the need to understand the underlying controls. We present a stalagmite-based delta O-18 record from Kesang Cave in western China, using MC-ICP-MS U-series dating and stable isotope analysis. Stalagmite calcite delta O-18 largely documents changes in the delta O-18 of precipitation. delta O-18 in stalagmites was low during the early and middle Holocene (10.0-3.0 ka BP), and shifted to higher values between 3.0 and 2.0 ka BP. After 2.01 ka BP, delta O-18 fluctuates with distinct centennial-scale variations. Drawing from results of state-of-the-art atmospheric general circulation model simulations for the preindustrial period and 9 ka BP, we propose that changes in moisture source regions and the wetter climate both contributed to the isotopic depletion of precipitation during the early and middle Holocene. Multiple records from surrounding regions indicate a generally wetter climate during the early and mid- Holocene, supporting our interpretation on the speleothem delta O-18. Changes in precipitation seasonality do not appear to be a viable explanation for the observed changes, nor increased penetration of monsoonal moisture to the study site. We speculate that the climatic regime shifted around 3.0-2.0 ka BP towards a drier climate, resulting in temperature having dominant control on precipitation delta O-18. The demise of three settlements around 500AD at the margin of Tarim Basin coincided with a period of decreased precipitation and increased temperature that likely affected local water resources, underscoring the potential impact of climate on human habitation in this region. (C) 2016 Elsevier Ltd. All rights reserved. |
| 关键词 | Stalagmite Central Asia Oxygen Isotope Westerlies Asian Monsoon Moisture Source Precipitation Seasonality Temperature Holocene |
| WOS标题词 | Science & Technology ; Physical Sciences |
| DOI | 10.1016/j.quascirev.2016.12.014 |
| 关键词[WOS] | INTERTROPICAL CONVERGENCE ZONE ; EASTERN MEDITERRANEAN REGION ; ARID CENTRAL-ASIA ; ICE-CORE ; NORTHERN XINJIANG ; TIBETAN PLATEAU ; CLIMATE-CHANGE ; BOSTEN LAKE ; TIEN-SHAN ; ATMOSPHERIC CIRCULATION |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Physical Geography ; Geology |
| WOS类目 | Geography, Physical ; Geosciences, Multidisciplinary |
| WOS记录号 | WOS:000394485500002 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ieecas.cn/handle/361006/5516 |
| 专题 | 现代环境研究室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China 2.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian 710049, Peoples R China 3.Univ Calif Berkeley, Dept Geog, Berkeley, CA 94720 USA 4.Univ Calif Berkeley, Berkeley Atmospher Sci Ctr, Berkeley, CA 94720 USA 5.Ruhr Univ Bochum, Dept Sediment & Isotope Geol, Bochum, Germany 6.Univ Minnesota, Dept Earth Sci, Minneapolis, MN 55455 USA |
| 推荐引用方式 GB/T 7714 | Cai, Yanjun,Chiang, John C. H.,Breitenbach, Sebastian F. M.,et al. Holocene moisture changes in western China, Central Asia, inferred from stalagmites[J]. QUATERNARY SCIENCE REVIEWS,2017,158(2017):15-28. |
| APA | Cai, Yanjun.,Chiang, John C. H..,Breitenbach, Sebastian F. M..,Tan, Liangcheng.,Cheng, Hai.,...&An, Zhisheng.(2017).Holocene moisture changes in western China, Central Asia, inferred from stalagmites.QUATERNARY SCIENCE REVIEWS,158(2017),15-28. |
| MLA | Cai, Yanjun,et al."Holocene moisture changes in western China, Central Asia, inferred from stalagmites".QUATERNARY SCIENCE REVIEWS 158.2017(2017):15-28. |
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| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Holocene climate cha（1702KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 请求全文 | |
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