Conflicts over water
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Transcript of Conflicts over water
ENVIRONMENTAL SCIENCE AND ENGINEERING
TOPICS
• EFFECTS OF OVER UTILIZATION OF WATER• FLOODS & DROUGHT• CONFLICT OVER WATER
Bykvk
EFFECTS OF OVER UTILIZATION OF WATER
• Decrease of Ground Water• Ground Subsidence• Lowering of Water table• Intrusion of Salt water• Earth quake & Landslides• Drying up of wells• Pollution of water
Decrease of ground water
Ground Subsidence
Lowering of water table
Intrusion of salt water
Earth quake landslides
Drying up of wells
Pollution of water
FLOODS
• It is an overflow of water• Happens when the water exceeds the carrying
limit of dams,lakes,ponds,,etc
Causes of floods
• Heavy rainfall,melting of snow, sudden release of water from dams.
• Deforestation,overgrazing,mining increases the runoff from rains and hence the level of floods raises.
FLOODS
EFFECTS
• Water spread in surrounding areas.
• Plain surface became eroded and silted with mud.
• Extinction of civilization
MANAGEMENT
• Constructing dams and reservoirs.
• Channel management, embankments also control the floods
• Fore casting, flood warning
DROUGHT• Scarcity of water• Occurs due to inadequate rainfall• Failure of monsoons• Excessive withdrawal of ground water
Causes of drought
• Annul rainfall in minimum , less than the evaporation
• High population• Intensive cropping pattern and over
exploitation of scarce water resources through dug well or bore well.
drought
EFFECTS
• Hunger , malnutrition , scarcity of drinking water.
• Desertification.• Degradation of natural
resource• Large migration of
people and urbanization
MANAGEMENT
• Rain water harvesting.• Improve ground level
water• Modern irrigation
technology
CONFLICT OVER WATER
Conflicts through use
• Unequal distribution of water has often led to inter state or international disputes
Constructions of dams
• Hydroelectric power generation, dams are built across the rivers, which initiates conflict between the states
Conflicts through pollution
• Production of electricity and shipping , rivers and lakes are also used for industrial purpose.
Management of conflicts over water
• Efforts are mainly concentrated to enact laws to check these practices to control water pollution.
• Demand of nationalisation of water needs serious consideration
Any queries?
Thank you
• By– kvk