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  4. 山地表生过程与生态调控重点实验室
Intense Chemical Weathering at Glacial Meltwater-Dominated Hailuogou Basin in the Southeastern Tibetan Plateau

文献类型：期刊论文

作者Li, Xiangying1,2; Ding, Yongjian2,3; Liu, Qiao4; Zhang, Yong5; Han, Tianding2; Jing, Zhefan2; Yu, Zhongbo1; Li, Qijiang6; Liu, Sha1
刊名WATER
出版日期2019-06-01
卷号11期号:6页码:22
关键词meltwater chemical weathering Hailuogou Glacier Tibetan Plateau
ISSN号2073-4441
DOI10.3390/w11061209
通讯作者Ding, Yongjian(dyj@lzb.ac.cn)
英文摘要Climate warming has caused rapid shrinkage of glaciers in the Tibetan Plateau (TP), but the impact of glacier retreat on the chemical denudation rate remains largely unknown at the temperate glacial basins. The chemical weathering processes were examined at a temperate glacial basin (HLG) in the southeastern TP based on comprehensive data from the supraglacial meltwater, proglacial river water, precipitation and groundwater over two glacier melt seasons in 2008 and 2013. The concentrations of major ions and suspended sediments in river water exhibit a pronounced seasonality and display a close relationship with river discharge, suggesting a strong hydrological control on the chemical and physical weathering processes. Runoff chemistry is dominated by carbonate weathering and sulfide oxidation. HCO3-, Ca2+, and/or SO42- are the dominant ions in meltwater, river water, precipitation and groundwater. For river water, HCO3- and Ca2+ primarily come from calcite weathering, and SO42- is mainly derived from pyrite oxidation. Both solute and sediment fluxes are positively related to river discharge (r = 0.69, p < 0.01 for sediments). The solute flux and yields are 18,095-19,435 tyear(-1) and 225-241 tkm(-2)year(-1), and the sediment load and yields are 126,390 tyear(-1) and 1570 tkm(-2)year(-1), respectively. The solute yields, cationic denudation rate (CDR; 2850-3108 Sigma*meq(+) m(-2)year(-1)) and chemical weathering intensity (CWI; 616-711 Sigma*meq(+) m(-3)year(-1)) at HLG are higher than those at most basins irrespective of the lithology, suggesting more intense weathering in the TP in comparison to other glacial basins worldwide.
WOS关键词MAJOR-ION CHEMISTRY ; SUSPENDED SEDIMENT LOAD ; GREENLAND ICE-SHEET ; HYDROCHEMICAL CHARACTERISTICS ; SOLUTE PROVENANCE ; GANGOTRI GLACIER ; TRACE-ELEMENTS ; HIMALAYAN GLACIER ; TEMPERATE GLACIER ; GARHWAL HIMALAYA
资助项目National Natural Science Foundation of China[41771040] ; National Natural Science Foundation of China[41730751] ; National Natural Science Foundation of China[41671071] ; Fundamental Research Funds for the Central Universities[2018B10214] ; Open Foundation of State Key Laboratory of Cryospheric Sciences[SKLCS-OP-2019-04] ; Open Foundation of State Key Laboratory of Frozen Soil Engineering[SKLFSE201411]
WOS研究方向Water Resources
语种英语
WOS记录号WOS:000475346300097
出版者MDPI
资助机构National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Open Foundation of State Key Laboratory of Cryospheric Sciences ; Open Foundation of State Key Laboratory of Frozen Soil Engineering
源URL[http://ir.imde.ac.cn/handle/131551/26779]  
专题成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
通讯作者Ding, Yongjian
作者单位1.Hohai Univ, Coll Hydrol & Water Resource, State Key Lab Hydrol Water Resources & Hydraul En, Nanjing 210098, Jiangsu, Peoples R China
2.Chinese Acad Sci, State Key Lab Cryospher Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
5.Hunan Univ Sci & Technol, Sch Resource Environm & Safety Engn, Xiangtan 411201, Peoples R China
6.Hydrol & Water Resource Survey Bur Qinghai Prov, Xining 810001, Qinghai, Peoples R China
推荐引用方式
GB/T 7714		 Li, Xiangying,Ding, Yongjian,Liu, Qiao,et al. Intense Chemical Weathering at Glacial Meltwater-Dominated Hailuogou Basin in the Southeastern Tibetan Plateau[J]. WATER,2019,11(6):22.
APA Li, Xiangying.,Ding, Yongjian.,Liu, Qiao.,Zhang, Yong.,Han, Tianding.,...&Liu, Sha.(2019).Intense Chemical Weathering at Glacial Meltwater-Dominated Hailuogou Basin in the Southeastern Tibetan Plateau.WATER,11(6),22.
MLA Li, Xiangying,et al."Intense Chemical Weathering at Glacial Meltwater-Dominated Hailuogou Basin in the Southeastern Tibetan Plateau".WATER 11.6(2019):22.

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来源：成都山地灾害与环境研究所

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