Tuul River Basin, Mongolia

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Tuul River Basin, Mongolia

• Ms.S.Baasansuren, Lecturer
• Mongolian University of Sciences and Technology
• Ms.J.Otgonbayar, Officer
• Water Authority, Mongolia

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Mongolia has 3 hydrological drainage basins.
Tuul River Basin-TRB belongs to Arctic Ocean
Basin.
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TRB occupies 3.19 of the total area of Mongolia.
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• Tuul River Basin has 9 sub-basins.

Catchment area 49,840 km2
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Geographical properties
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Tuul river recharge GW (26), melted snow (5)
and rain (69).
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Demographic properties
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Land use classification of TRB
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WATER RESOURCES IN TUUL RIVER BASIN

• Total surface groundwater resources
  1.28 bln m3/year  
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• Total surface water abstractions, estimated
  425.4 mln m3/year  
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• Total groundwater abstractions, estimated
  818.0 mln m3/year  
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Hydrological stations observing the Tuul river
regime and quality.
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Comparison of Tuul river water quality in
Ulaanbaatar city
downstream ? upstream downstream ?
upstream
Contaminated by the effluents from city sewage
plant and industries
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Downstream of the Tuul river polluted by silt
mud from mining activities in Zaamar, Tuv
province.
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Surface water pollution leads to lowering of
groundwater level.
Observation done within the Sustainable
groundwater management in Mongolia project.
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-Increasing urbanization, deforestation,
overgrazing pasture, waste water mismanagement,
mineral resources exploitation destructing the
Tuul river ecosystem. - Surface water pollution
threatens safety of drinking water resources.
Setting up Tuul River Basin Board is
underway. Work outIntegrated Water Management
Plan of Tuul Tiver Basin is vital. 
CONCLUSION
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Thank you.