| East Asian Summer Monsoon moisture sustains summer relative humidity in the southwestern Gobi Desert, China: evidence from O-18 of tree rings | |
| Li, Qiang1,2,3; Liu, Yu1,2,3,4; Nakatsuka, Takeshi5; Fang, Keyan6; Song, Huiming1,2,3; Liu, Ruoshi4; Sun, Changfeng1,2,3; Li, Gang7; Wang, Ke7 | |
| 通讯作者 | Li, Qiang(liqiang@ieecas.cn) ; Liu, Yu(liuyu@loess.llqg.ac.cn) |
| 2019-06-01 | |
| 发表期刊 | CLIMATE DYNAMICS
 |
| ISSN | 0930-7575 |
| 卷号 | 52期号:11页码:6321-6337 |
| 摘要 | The dominant climate-controlling system of the southwestern Gobi Desert and its surrounding areas in China at interannual to centennial time scale has not been determined. It is necessary to improve our understanding of the humidity variations in the past and forcing mechanisms in the southwestern Gobi Desert to enhance the accuracy of climate model predictions and cope with future desert advance/retreat crises resulting from climate change. We measured the annual stable oxygen isotope ratio (O-18) in the cellulose of four Picea crassifolia trees growing on the fringe of the southwestern Gobi Desert from 1806 to 2011. Our tree-ring cellulose O-18 values (34.49 parts per thousand) were considerably higher than those reported in other regions of Asia, suggesting that the southwestern Gobi Desert has been extremely arid over the past two centuries. The chronology of tree-ring cellulose O-18 is significantly (p<0.01) negatively correlated with summer (June, July, and August) relative humidity (RH) records from 12 meteorological stations nearby our study region (Table1). Based on the high correlation (r=-0.740, p<0.0001, n=49) between tree-ring cellulose O-18 and instrumental summer RH from meteorological stations nearby our study region, we reconstructed summer RH variations during the past 206years. Spatial correlation patterns between our reconstruction and several hydroclimate-related gridded data sets indicate that the reconstruction is representative of hydroclimate variations over a large area. Close agreement was observed between our reconstruction and several East Asian Summer Monsoon-related hydroclimate records. Our study indicates that the moisture from the east has introduced the RH to the southwestern Gobi Desert during the summer months over the past two centuries. |
| 关键词 | Tree rings Stable oxygen isotope Relative humidity Gobi Desert East Asian Summer Monsoon |
| DOI | 10.1007/s00382-018-4515-6 |
| 关键词[WOS] | PRECIPITATION RECONSTRUCTION ; STABLE-ISOTOPES ; CLIMATE ; DELTA-O-18 ; CELLULOSE ; VARIABILITY ; RATIOS ; OXYGEN ; INDEX ; SIGNALS |
| 收录类别 | SCI ; SCI |
| 语种 | 英语 |
| 资助项目 | National Natural Science Foundation of China[41873021] ; National Natural Science Foundation of China[41630531] ; CAS Key Research Program of Frontier Sciences[QYZDJ-SSW-DQC021] ; CAS Key Research Program of Frontier Sciences[XDPB05] ; CAS Key Research Program of Frontier Sciences[GJHZ1777] ; Youth Innovation Promotion Association of CAS[2017451] ; West Light Foundation of CAS ; Young Star of Science and Technology, Shaanxi Province ; Cultivating Foundation of SKLLQG |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| 项目资助者 | National Natural Science Foundation of China ; CAS Key Research Program of Frontier Sciences ; Youth Innovation Promotion Association of CAS ; West Light Foundation of CAS ; Young Star of Science and Technology, Shaanxi Province ; Cultivating Foundation of SKLLQG |
| WOS类目 | Meteorology & Atmospheric Sciences |
| WOS记录号 | WOS:000469016700001 |
| 出版者 | SPRINGER |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ieecas.cn/handle/361006/13871 |
| 专题 | 现代环境研究室 |
| 通讯作者 | Li, Qiang; Liu, Yu |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Loess & Quaternary Geol, Inst Earth Environm, Xian 710061, Shaanxi, Peoples R China 2.Beijing Normal Univ, Interdisciplinary Res Ctr Earth Sci Frontier IRCE, Beijing 100875, Peoples R China 3.Beijing Normal Univ, JCGCS, Beijing 100875, Peoples R China 4.Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Xian 710049, Shaanxi, Peoples R China 5.Res Inst Humanity & Nat, Kita Ku, 457-4 Motoyama, Kyoto 6038047, Japan 6.Fujian Normal Univ, Key Lab Humid Subtrop Ecogeog Proc, Minist Educ, Coll Geog Sci, Fuzhou 350007, Fujian, Peoples R China 7.Dongdashan Nat Reserve, Ganzhou Dist 734000, Zhangye, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Qiang,Liu, Yu,Nakatsuka, Takeshi,et al. East Asian Summer Monsoon moisture sustains summer relative humidity in the southwestern Gobi Desert, China: evidence from O-18 of tree rings[J]. CLIMATE DYNAMICS,2019,52(11):6321-6337. |
| APA | Li, Qiang.,Liu, Yu.,Nakatsuka, Takeshi.,Fang, Keyan.,Song, Huiming.,...&Wang, Ke.(2019).East Asian Summer Monsoon moisture sustains summer relative humidity in the southwestern Gobi Desert, China: evidence from O-18 of tree rings.CLIMATE DYNAMICS,52(11),6321-6337. |
| MLA | Li, Qiang,et al."East Asian Summer Monsoon moisture sustains summer relative humidity in the southwestern Gobi Desert, China: evidence from O-18 of tree rings".CLIMATE DYNAMICS 52.11(2019):6321-6337. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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