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Tree-ring reconstruction of Lhasa River streamflow reveals 472 years of hydrologic change on southern Tibetan Plateau
Chen, F (Chen, Feng)1,2; Shang, HM (Shang, Huaming)2; Panyushkina, IP (Panyushkina, Irina P.)3; Meko, DM (Meko, David M.)3; Yu, SL (Yu, Shulong)2; Yuan, YJ (Yuan, Yujiang)2; Chen, FH (Chen, Fahu)4
Source PublicationJOURNAL OF HYDROLOGY
2019
Volume572Issue:0Pages:169-178
DOI10.1016/j.jhydrol.2019.02.054
Abstract

The Lhasa River is the largest tributary of the Yarlung Zangbo River, provides up to 85% of the water supply for the city of Lhasa, and has a high ecologic and economic importance. Annual streamflow of the Lhasa River is reconstructed from Juniperus tibetica tree rings. The streamflow reconstruction developed for the southern Tibetan Plateau goes back to 1546 CE and has a R-2 of 0.485. Spectral and wavelet analysis indicates the existence of decadal (34 and 16 years) and interannual (8.1, 5.7, 4.8, 3.8, 3.5, 3.2, 2.7, 2.3 and 2.1 years) cycles that may reflect climate forcings. Lhasa River streamflow is significantly correlated with precipitation over a vast part of the Yarlung Zangbo River basin, and represents streamflow of the upper Yarlung Zangbo River to a certain extent. Lhasa River variation is linked with large-scale climate circulation features, such as the El Nino-Southern Oscillation (ENSO) and Asian summer monsoon. Some years of abnormally high and low streamflow are related to ENSO events. Based on the reconstruction, the probability that annual streamflow does not exceed a target defined as the instrumental-period mean was lower (48% non-exceedance probability) than during the instrumental period. This study indicates that the instrumental record does not contain the full range of streamflow, especially the lowest streamflow events, and the reconstruction makes up for this shortcoming. Future water resource supply planning based on the instrumental record and streamflow reconstructions will be able to effectively reduce the risks posed by climate change.

Subject AreaGeosciences
WOS IDWOS:000467891900014
Language英语
Indexed BySCI
KeywordWater-resources Climate-change Annual Precipitation Northern Patagonia Heihe River Variability China Drought Runoff Record
WOS Research AreaEngineering ; Geology ; Water Resources
WOS SubjectEngineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
Cooperation Status国内
ISSN0022-1694
Department环境变化与地表过程
URL查看原文
PublisherELSEVIER SCIENCE BV
SubtypeArticle
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/9318
Collection图书馆
Corresponding AuthorChen, F (Chen, Feng)
Affiliation1.Yunnan Univ, Inst Int Rivers & Ecosecur, Yunnan Key Lab Int Rivers & Transboundary Ecosecu, Kunming, Yunnan, Peoples R China;
2.China Meteorol Adm, Inst Desert Meteorol, Xinjiang Lab Tree Ring Ecol, Key Lab Tree Ring Phys & Chem Res,China Meteorol, Urumqi, Peoples R China;
3.Univ Arizona, Lab Tree Ring Res, Tucson, AZ USA;
4.Chinese Acad Sci, Inst Tibetan Plateau Res, Beijing, Peoples R China.
Recommended Citation
GB/T 7714
Chen, F ,Shang, HM ,Panyushkina, IP ,et al. Tree-ring reconstruction of Lhasa River streamflow reveals 472 years of hydrologic change on southern Tibetan Plateau[J]. JOURNAL OF HYDROLOGY,2019,572(0):169-178.
APA Chen, F .,Shang, HM .,Panyushkina, IP .,Meko, DM .,Yu, SL .,...&Chen, FH .(2019).Tree-ring reconstruction of Lhasa River streamflow reveals 472 years of hydrologic change on southern Tibetan Plateau.JOURNAL OF HYDROLOGY,572(0),169-178.
MLA Chen, F ,et al."Tree-ring reconstruction of Lhasa River streamflow reveals 472 years of hydrologic change on southern Tibetan Plateau".JOURNAL OF HYDROLOGY 572.0(2019):169-178.
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