IGGCAS OpenIR  > 新生代地质与环境院重点实验室
Hydrological Extremes in the Upper Yangtze River Over the Past 700 yr Inferred From a Tree Ring delta O-18 Record
An, Wenling1; Li, Jinjian2; Wang, Shu3; Xu, Chenxi1,4; Shao, Xuemei5; Qin, Ningsheng3; Guo, Zhengtang1,4
2022-05-27
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
ISSN2169-897X
Volume127Issue:10Pages:15
AbstractOngoing global warming has a strong influence on regional hydrological cycles. The upper reaches of the Yangtze River (UYR) are highly vulnerable to extreme hydrological droughts and floods, but a lack of long-term streamflow observations has limited our understanding on global warming influences. Here, we establish an annually resolved and absolutely dated tree-ring oxygen (delta O-18) isotope chronology and use it to reconstruct the summer streamflow history of the UYR between 1260 and 2017. The UYR experienced 79 extreme floods and 107 extreme hydrological droughts over this period. We found a trend toward dry conditions in the region with tendencies for an increased drought probability since around 1850s. Especially, the frequency of hydrological droughts in recent decades has been outside the envelope of natural variability of extreme hydrological droughts. The temporal evolution of hydrological extremes is closely linked to variability of the Indian summer monsoon (ISM) at decadal scales. The UYR has experienced more frequent droughts during dry spells and experienced more frequent floods during wet spells of the ISM. The recent increase in the frequency of hydrological droughts is consistent with the observed trend toward a weaker ISM and increasing temperatures. Weaker transport of low-level moisture and greater evaporation caused by global warming have contributed to the increase in extreme hydrological droughts. Our results thus provide a long-term context for observed hydrological changes and suggest that the UYR will experience more frequent and severe extreme events as a consequence of increasing greenhouse gas emissions.
Keywordtree ring oxygen isotope hydrological extremes upper Yangtze River
DOI10.1029/2021JD036109
Funding OrganizationNational 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 ; Chinese Academy of Sciences (CAS) Pioneer Hundred Talents Program, China ; Chinese Academy of Sciences (CAS) Pioneer Hundred Talents Program, China ; Key Research Program of the Institute of Geology and Geophysics (CAS) ; Key Research Program of the Institute of Geology and Geophysics (CAS) ; 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 ; Chinese Academy of Sciences (CAS) Pioneer Hundred Talents Program, China ; Chinese Academy of Sciences (CAS) Pioneer Hundred Talents Program, China ; Key Research Program of the Institute of Geology and Geophysics (CAS) ; Key Research Program of the Institute of Geology and Geophysics (CAS) ; 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 ; Chinese Academy of Sciences (CAS) Pioneer Hundred Talents Program, China ; Chinese Academy of Sciences (CAS) Pioneer Hundred Talents Program, China ; Key Research Program of the Institute of Geology and Geophysics (CAS) ; Key Research Program of the Institute of Geology and Geophysics (CAS) ; 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 ; Chinese Academy of Sciences (CAS) Pioneer Hundred Talents Program, China ; Chinese Academy of Sciences (CAS) Pioneer Hundred Talents Program, China ; Key Research Program of the Institute of Geology and Geophysics (CAS) ; Key Research Program of the Institute of Geology and Geophysics (CAS)
WOS KeywordTIBETAN PLATEAU ; STABLE-ISOTOPES ; STREAMFLOW RECONSTRUCTION ; SUMMER MONSOON ; VARIABILITY ; PRECIPITATION ; CELLULOSE ; WATER ; BASIN ; HUMIDITY
Language英语
Funding ProjectNational Natural Science Foundation of China[41772173] ; National Natural Science Foundation of China[41888101] ; National Natural Science Foundation of China[42022059] ; National Natural Science Foundation of China[41630529] ; National Natural Science Foundation of China[41877457] ; Strategic Priority Research Program of the Chinese Academy of Sciences, China[XDB26020000] ; Chinese Academy of Sciences (CAS) Pioneer Hundred Talents Program, China ; Key Research Program of the Institute of Geology and Geophysics (CAS)[IGGCAS-201905]
Funding OrganizationNational 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 ; Chinese Academy of Sciences (CAS) Pioneer Hundred Talents Program, China ; Chinese Academy of Sciences (CAS) Pioneer Hundred Talents Program, China ; Key Research Program of the Institute of Geology and Geophysics (CAS) ; Key Research Program of the Institute of Geology and Geophysics (CAS) ; 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 ; Chinese Academy of Sciences (CAS) Pioneer Hundred Talents Program, China ; Chinese Academy of Sciences (CAS) Pioneer Hundred Talents Program, China ; Key Research Program of the Institute of Geology and Geophysics (CAS) ; Key Research Program of the Institute of Geology and Geophysics (CAS) ; 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 ; Chinese Academy of Sciences (CAS) Pioneer Hundred Talents Program, China ; Chinese Academy of Sciences (CAS) Pioneer Hundred Talents Program, China ; Key Research Program of the Institute of Geology and Geophysics (CAS) ; Key Research Program of the Institute of Geology and Geophysics (CAS) ; 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 ; Chinese Academy of Sciences (CAS) Pioneer Hundred Talents Program, China ; Chinese Academy of Sciences (CAS) Pioneer Hundred Talents Program, China ; Key Research Program of the Institute of Geology and Geophysics (CAS) ; Key Research Program of the Institute of Geology and Geophysics (CAS)
WOS Research AreaMeteorology & Atmospheric Sciences
WOS SubjectMeteorology & Atmospheric Sciences
WOS IDWOS:000799043300001
PublisherAMER GEOPHYSICAL UNION
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/105953
Collection新生代地质与环境院重点实验室
Corresponding AuthorXu, Chenxi; Qin, Ningsheng
Affiliation1.Chinese Acad Sci, Key Lab Cenozo Geol & Environm, Inst Geol & Geophys, Beijing, Peoples R China
2.Chengdu Univ Informat Technol, Sch Atmospher Sci Plateau Atmosphere & Environm, Key Lab Sichuan Prov, Chengdu, Peoples R China
3.China Meteorol Adm, Chengdu Heavy Rain & Drought Flood Disasters Plat, Key Lab Sichuan Prov, Inst Plateau Meteorol, Chengdu, Peoples R China
4.CAS Ctr Excellence Life & Paleoenvironm, Beijing, Peoples R China
5.Chinese Acad Sci, Inst Geog Sci & Nat Resources, Key Lab Land Surface Pattern & Simulat, Beijing, Peoples R China
Recommended Citation
GB/T 7714
An, Wenling,Li, Jinjian,Wang, Shu,et al. Hydrological Extremes in the Upper Yangtze River Over the Past 700 yr Inferred From a Tree Ring delta O-18 Record[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2022,127(10):15.
APA An, Wenling.,Li, Jinjian.,Wang, Shu.,Xu, Chenxi.,Shao, Xuemei.,...&Guo, Zhengtang.(2022).Hydrological Extremes in the Upper Yangtze River Over the Past 700 yr Inferred From a Tree Ring delta O-18 Record.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,127(10),15.
MLA An, Wenling,et al."Hydrological Extremes in the Upper Yangtze River Over the Past 700 yr Inferred From a Tree Ring delta O-18 Record".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 127.10(2022):15.
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