Composition, spatial distribution, and environmental significance of water ions in Pumayum Co catchment, southern Tibet

Auteur(s) et Affiliation(s)



Description :
The chemistry of major cations and anions in the water of Lake Pumayum Co and its inflow river was studied, revealing the obvious ionic difference among various inflow rivers and the lake. With the evidence of distribution of water chemistry and oxygen isotope of lake water, a conclusion can be outlined that Jiaqu River had a distinct effect on the hydrochemistry of the water on the submerged delta, whereas this is not the case for other rivers. The Gibbs plot revealed that the dominant mechanism responsible for controlling chemical compositions of the lake water was rocks weathering in the drainage area. The different hydrochemistry characteristics between river water and lake water may result from the CaCO3 precipitation. The findings will benefit the explanation of the environmental significance of carbonate in paleolimnological studies in the lake.


Type de document :
Article de périodique

Source :
Journal of geographical sciences. Acta geographica sinica, issn : 1009-637X, 2010, vol. 20, n°. 1, p. 109-120, nombre de pages : 12, Références bibliographiques : 31 ref.

Date :
2010

Editeur :
Pays édition : Chine