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- Title
Variations of chemical features in a monsoon glacier watershed, southeastern Tibet Plateau.
- Authors
Zhu, Guofeng; Liu, Yuanfeng; He, Yuanqing; Pu, Tao; Li, Jiafang; Yang, Ling
- Abstract
The pH, EC (electric conductivity), δO and major ions in melt water, precipitation, runoff and groundwater samples which were collected in Baishui basin were analyzed. Based on chemical analysis, the characteristic variations are analyzed in this paper. The melt water, precipitation, runoff and groundwater were Ca/Mg/HCO type with similar ion compositions but showed different ion concentrations. Normally the content is high in groundwater and runoff water but low in melt water and precipitation. From the upper basin glacier downward, there was a general increasing trend for the total ion concentrations in basin. HCO and Ca accounted for more than 80 % of total ions in samples, indicating that ions mainly came from limestone and water typical of carbonate solution water. Water-rock interaction is the significant contributor to water geochemistry. The concentration of inorganic ion in melt water had an obvious diurnal variation with temperature change. The δO values increases with the altitude decrease; the similarity of δO in runoff and groundwater samples was due to their frequent transformation in karst regions.
- Subjects
TIBETAN Plateau; WATERSHEDS; WATER chemistry; MONSOONS; GLACIERS; PRECIPITATION (Chemistry); CARBONATES; CALCIUM ions
- Publication
Environmental Earth Sciences, 2015, Vol 74, Issue 7, p5793
- ISSN
1866-6280
- Publication type
Article
- DOI
10.1007/s12665-015-4597-y