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Irrawaddy River experienced more frequent hydrological drought events with global warming: Evidence from a 400-year tree ring oxygen isotope record

文献类型：期刊论文

作者Zhao, Yaru1,2; Xu, Chenxi2,3; Liu, Yucheng1,2; An, Wenling2,3; Guo, Zhengtang2,3
刊名CATENA
出版日期2023-11-01
卷号232页码:11
ISSN号0341-8162
关键词Irrawaddy River Hydrological events Climate change Tree-ring cellulose & delta 18 O
DOI10.1016/j.catena.2023.107455
英文摘要Global temperature fluctuations have significantly impacted regional hydrological cycles. The Irrawaddy River (IR) is the largest river in Myanmar and has an important influence on socioeconomic conditions within its watershed and beyond. However, potential changes to the IR's hydrological extremes under a future warming climate remain poorly understood. We reconstructed a 400-yr May-July streamflow time series for the IR using tree-ring cellulose oxygen isotopes (d18O) and compared the variations of the hydrological extremes before and after the onset of global warming. The streamflow reconstruction shows that the IR experienced 65 extreme flood events and 67 extreme drought events during 1617-2017, with 58 extreme drought events occurred after 1850. Extreme drought events in this region have gradually increased and the frequency of extreme droughts has increased significantly since the 1850s. The occurrence of drought events in the last few decades has exceeded the natural variability. Especially, the persistent drought conditions during 2000-2017 are unprecedented compared with the record of the last 400 yr. This increase in drought events is significantly linked to the weakening of the ISM and increasing temperatures, hence the IR may experience more extreme drought events in the future under global warming.
WOS关键词DELTA-O-18 CHRONOLOGY ; EAST-ASIA ; VARIABILITY ; CLIMATE ; THAILAND ; HIMALAYA ; IMPACTS ; COVER
资助项目National Natural Science Foundation of China[42022059] ; National Natural Science Foundation of China[41888101] ; National Natural Science Foundation of China[41630529] ; Strategic Priority Research Program of the Chinese Academy of Sciences, China[XDB26020000] ; Key Research Program of the Institute of Geology and Geophysics (CAS)[IGGCAS-201905] ; CAS Youth Interdisciplinary Team[JCTD-2021-05]
WOS研究方向Geology ; Agriculture ; Water Resources
语种英语
出版者ELSEVIER
WOS记录号WOS:001058537800001
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences, China ; Strategic Priority Research Program of the Chinese Academy of Sciences, China ; Key Research Program of the Institute of Geology and Geophysics (CAS) ; Key Research Program of the Institute of Geology and Geophysics (CAS) ; CAS Youth Interdisciplinary Team ; CAS Youth Interdisciplinary Team ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences, China ; Strategic Priority Research Program of the Chinese Academy of Sciences, China ; Key Research Program of the Institute of Geology and Geophysics (CAS) ; Key Research Program of the Institute of Geology and Geophysics (CAS) ; CAS Youth Interdisciplinary Team ; CAS Youth Interdisciplinary Team ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences, China ; Strategic Priority Research Program of the Chinese Academy of Sciences, China ; Key Research Program of the Institute of Geology and Geophysics (CAS) ; Key Research Program of the Institute of Geology and Geophysics (CAS) ; CAS Youth Interdisciplinary Team ; CAS Youth Interdisciplinary Team ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences, China ; Strategic Priority Research Program of the Chinese Academy of Sciences, China ; Key Research Program of the Institute of Geology and Geophysics (CAS) ; Key Research Program of the Institute of Geology and Geophysics (CAS) ; CAS Youth Interdisciplinary Team ; CAS Youth Interdisciplinary Team
源URL[http://ir.iggcas.ac.cn/handle/132A11/111427]  
专题地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
通讯作者Xu, Chenxi
作者单位1.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Key Lab Cenozo Geol & Environm, Inst Geol & Geophys, Beijing 100029, Peoples R China
3.CAS Ctr Excellence Life & Paleoenvironment, Beijing 100044, Peoples R China
推荐引用方式
GB/T 7714		 Zhao, Yaru,Xu, Chenxi,Liu, Yucheng,et al. Irrawaddy River experienced more frequent hydrological drought events with global warming: Evidence from a 400-year tree ring oxygen isotope record[J]. CATENA,2023,232:11.
APA Zhao, Yaru,Xu, Chenxi,Liu, Yucheng,An, Wenling,&Guo, Zhengtang.(2023).Irrawaddy River experienced more frequent hydrological drought events with global warming: Evidence from a 400-year tree ring oxygen isotope record.CATENA,232,11.
MLA Zhao, Yaru,et al."Irrawaddy River experienced more frequent hydrological drought events with global warming: Evidence from a 400-year tree ring oxygen isotope record".CATENA 232(2023):11.

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来源：地质与地球物理研究所

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