NDLI: Long-term variations of water quality of the Selenga and Kiran rivers at the Russian-Mongolian boundary

Content Provider	Springer Nature Link
Author	Rumyantseva, E. A. Bobrovitskaya, N. N.
Copyright Year	2010
Abstract	Principal-Component Method is used to identify the major factors governing the long-term variations of water chemistry in the transboundary rivers of Selenga and Kiran. Their preliminary interpretation was made. Water chemistry formation in both large (Selenga) and small (Kiran) rivers is shown to be mostly governed by natural-climatic factors. Thus, an increase in water abundance has a dual effect on water chemistry: on the one hand, water is enriched with substances increasingly entering it because of the more intense erosion and dissolution of solid rocks, and, on the other hand, the concentrations of chemicals of anthropogenic origin decrease because of their greater dilution. A conclusion was made regarding a relationship between a positive trend in water temperature and an increase in the concentration of chlorine ion in water. A preliminary estimate is given to the effect of municipal and industrial wastes, as well as surface and subsurface waters of various genesis on long-term variations of river water chemistry. Trends in changes in water chemistry were studied by using approximations of long-term series of the variables that determine the interpretation of principal factors with the help of a slow trend by “caterpillar” method.
Starting Page	372
Ending Page	383
Page Count	12
File Format	PDF
ISSN	00978078
Journal	Water Resources
Volume Number	37
Issue Number	3
e-ISSN	1608344X
Language	English
Publisher	SP MAIK Nauka/Interperiodica
Publisher Date	2010-05-20
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	transboundary water body the Selenga River the Kiran River regime observations water chemistry long-term variations comprehensive assessment principal component method approximation of long-term series formation factors variation trends Waste Water Technology Water Pollution Control Water Management Aquatic Pollution Hydrogeology
Content Type	Text
Resource Type	Article
Subject	Water Science and Technology

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