IEECAS OpenIR  > 现代环境研究室
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
Source PublicationCLIMATE DYNAMICS
AbstractBased 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.
KeywordCryptomeria Fortunei Mt. Tianmu Tree-ring Delta C-13 China Relative Humidity Asian Summer Monsoon
WOS HeadingsScience & Technology ; Physical Sciences
Indexed BySCI
WOS Research AreaMeteorology & Atmospheric Sciences
WOS SubjectMeteorology & Atmospheric Sciences
WOS IDWOS:000426707100015
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.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
Recommended Citation
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.
Files in This Item:
File Name/Size DocType Version Access License
Tree-ring stable car(1414KB)期刊论文出版稿开放获取CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Liu, Yu]'s Articles
[Ta, Weiyuan]'s Articles
[Li, Qiang]'s Articles
Baidu academic
Similar articles in Baidu academic
[Liu, Yu]'s Articles
[Ta, Weiyuan]'s Articles
[Li, Qiang]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Liu, Yu]'s Articles
[Ta, Weiyuan]'s Articles
[Li, Qiang]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.