| Tree-ring stable carbon isotope-based April-June relative humidity reconstruction since AD 1648 in Mt. Tianmu, China | |
| Liu, Yu1,3,4; Ta, Weiyuan1,2,5; Li, Qiang1; Song, Huiming1; Sun, Changfeng1,4; Cai, Qiufang1; Liu, Han1,2; Wang, Lu1,2; Hu, Sile1,2; Sun, Junyan1; Zhang, Wenbiao6; Li, Wenzhu6 | |
| 2018-03-01 | |
| 发表期刊 | CLIMATE DYNAMICS
 |
| 卷号 | 50期号:5-6页码:1733-1745 |
| 文章类型 | Article |
| 摘要 | Based on accurate dating, we have determined the stable carbon isotope ratios (delta C-13) of five Cryptomeria fortunei specimens from Mt. Tianmu, a subtropical area in southern China. The five delta C-13 time series records are combined into a single representative delta C-13 time series using a "numerical mix method." These are normalized to remove temporal variations of delta(13) C in atmospheric CO2 to obtain a carbon isotopic discrimination (Delta C-13) time series, in which we observe a distinct correlation between Delta C-13 and local April to June mean relative humidity (RH (AMJ) ) (n = 64, r = 0.858, p < 0.0001). We use this relationship to reconstruct RH (AMJ) variations from ad 1648 to 2014 at Mt. Tianmu. The reconstructed sequence show that over the past 367 years, Mt. Tianmu area was relatively wet, but in the latter part of the twentieth century, under the influence of increasing global warming, it has experienced a sharp reduction in relative humidity. Spatial correlation analysis reveals a significant negative correlation between RH (AMJ) at Mt. Tianmu and Sea Surface Temperature (SSTs) in the western equatorial Pacific and Indian Ocean. In other words, there is a positive correlation between tree-ring delta C-13 in Mt. Tianmu and SSTs. Both observed and reconstructed RH (AMJ) show significant positive correlations with East Asian and South Asian monsoons from 1951 to 2014, which indicate that RH (AMJ) from Mt. Tianmu reflects the variability of the Asian summer monsoon intensity to a great extent. The summer monsoon has weakened since 1960. However, an increase in relative humidity since 2003 implies a recent enhancement in the summer monsoon. |
| 关键词 | Cryptomeria Fortunei Mt. Tianmu Tree-ring Delta C-13 China Relative Humidity Asian Summer Monsoon |
| WOS标题词 | Science & Technology ; Physical Sciences |
| DOI | 10.1007/s00382-017-3718-6 |
| 关键词[WOS] | WATER-USE EFFICIENCY ; CRYPTOMERIA-FORTUNEI ; ATMOSPHERIC CO2 ; MONSOON ; SERIES ; CLIMATE ; RECORD ; REGION ; DELTA-O-18 ; CELLULOSE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| WOS类目 | Meteorology & Atmospheric Sciences |
| WOS记录号 | WOS:000426707100015 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ieecas.cn/handle/361006/5230 |
| 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, Shaanxi, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Beijing Normal Univ, JCGCS, Beijing 100875, Peoples R China 4.Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Dept Environm Sci & Technol, Xian 710049, Shaanxi, Peoples R China 5.Shaanxi Appraisal Ctr Environm Engn, Xian 710065, Shaanxi, Peoples R China 6.Zhejiang Agr & Forestry Univ, Hangzhou 311300, Zhejiang, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Yu,Ta, Weiyuan,Li, Qiang,et al. Tree-ring stable carbon isotope-based April-June relative humidity reconstruction since AD 1648 in Mt. Tianmu, China[J]. CLIMATE DYNAMICS,2018,50(5-6):1733-1745. |
| APA | Liu, Yu.,Ta, Weiyuan.,Li, Qiang.,Song, Huiming.,Sun, Changfeng.,...&Li, Wenzhu.(2018).Tree-ring stable carbon isotope-based April-June relative humidity reconstruction since AD 1648 in Mt. Tianmu, China.CLIMATE DYNAMICS,50(5-6),1733-1745. |
| MLA | Liu, Yu,et al."Tree-ring stable carbon isotope-based April-June relative humidity reconstruction since AD 1648 in Mt. Tianmu, China".CLIMATE DYNAMICS 50.5-6(2018):1733-1745. |
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| Tree-ring stable car（1414KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 请求全文 | |
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