IMHE OpenIR  > 山地灾害与地表过程重点实验室
Hydrochemistry of waters in snowpacks, lakes and streams of Mt. Dagu, eastern of Tibet Plateau
Guang Zhao1,2; Wei Li1; Feng Li3; Fu Zhang3; Gangcai Liu1
Corresponding AuthorGangcai Liu

There is little available information on hydrochemistry of waters from glacial source to downstream of glacierized catchments. Here we examine the water chemistry of the snowpacks, lakes and streams at eight sampling sites within glacial basin in Mt. Dagu, east Tibetan Plateau. An air mass trajectory model, correlation analysis, Gibbs model, Piper diagram and hydrograph separation analysis were utilized to investigate the characteristics and solutes sources of these waters. Generally, the TDS (Total dissolved solids; 7.54, 13.95 and 18.70 mg/L for snowpacks, lakes and streams respectively) and concentrations of main chemicals in all samples exhibited downstream trend from snowpacks to streams. Of the cations, Ca2+ appeared with the highest concentration followed by K+ and Na+. Of the anions, HCO3- was most abundant, followed by Cl-, SO42- and NO3-. For snowpack samples, the air masses arriving at the sampling sites were typically prevailing from the western Tibet Plateau, central Asia and the northern Mongolia plateau. The fine particulate matter in the Mt. Dagu snowpacks was most likely transported long range from three arid regions above-mentioned. High concentrations of SO42- and NH4+ in snowpacks, with twice as much NH4+ as SO42-, implying that the soluble part of the finer particles was transported as a form of ammonium sulfate. Rock weathering determined the ion components of the meltwater and the water could be classified as calcium and bicarbonate type based on the Piper diagram. The chemical contributions from glacier-snow meltwater were 20%-131% for lake and 5%-79% for stream, while the runoff contribution to lake varied from 65.4% to 84.9%, and 66.1% to 81.6% for stream. This study suggested that glacier-snow meltwater was the mainly runoff contributor to lake and stream water and that snowpack solutes derived from eolian additions exert a significant influence on lake and stream chemistry.

KeywordEnvironmental Significance Source Analysis Hydrogen And Oxygen Isotopes Hydrograph Separation
Indexed BySCI
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.Key Laboratory ofMountain Surface Processes and Ecological Regulation, Institute ofMountain Hazards and Environment, Chinese Academy of Sciences and Ministry ofWater Resources, Chengdu
2.University of Chinese Academy of Sciences, Beijing 100049, China
3.Dagu Glacier Administration Bureau, Heishui County 623500, Sichuan Province, China
Recommended Citation
GB/T 7714
Guang Zhao,Wei Li,Feng Li,et al. Hydrochemistry of waters in snowpacks, lakes and streams of Mt. Dagu, eastern of Tibet Plateau[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2018,610:641-650.
APA Guang Zhao,Wei Li,Feng Li,Fu Zhang,&Gangcai Liu.(2018).Hydrochemistry of waters in snowpacks, lakes and streams of Mt. Dagu, eastern of Tibet Plateau.SCIENCE OF THE TOTAL ENVIRONMENT,610,641-650.
MLA Guang Zhao,et al."Hydrochemistry of waters in snowpacks, lakes and streams of Mt. Dagu, eastern of Tibet Plateau".SCIENCE OF THE TOTAL ENVIRONMENT 610(2018):641-650.
Files in This Item:
File Name/Size DocType Version Access License
Hydrochemistry of wa(1502KB)期刊论文作者接受稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Guang Zhao]'s Articles
[Wei Li]'s Articles
[Feng Li]'s Articles
Baidu academic
Similar articles in Baidu academic
[Guang Zhao]'s Articles
[Wei Li]'s Articles
[Feng Li]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Guang Zhao]'s Articles
[Wei Li]'s Articles
[Feng Li]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Hydrochemistry of waters in snowpacks, lakes and streams of Mt. Dagu, eastern of Tibet Plateau.pdf
Format: Adobe PDF
All comments (0)
No comment.

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