Transcript Animal -Human Disease Transmission

Hourly 3
Average: 77.6
Range: 30 -97
Water Management
Chapter 16
http://www.life.uiuc.edu/animalbiology/105/
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Human effects on the hydrological cycle
Increased evaporation
cooling
Human effects on the hydrological cycle
Increased evaporation
cooling
irrigation
Human effects on the hydrological cycle
Increased evaporation
Increased runoff
deforestation
Human effects on the hydrological cycle
Increased evaporation
Increased runoff
deforestation
pavement
Human effects on the hydrological cycle
Increased evaporation
Increased runoff
deforestation
pavement
sewers
Human effects on the hydrological cycle
Increased evaporation
Increased runoff
Water usage
How water is used
domestic
industry
agriculture
Water usage
Agricultural Water Use
Irrigation is the major consumptive use of
water in most parts of world
Cost of water is a limiting factor on
agriculture
Water usage
Industrial Water Use
Accounts for nearly 50% of all water
withdrawal in US, and 23% worldwide
90% of water used by industry is for
cooling , and is returned to the source.
Water usage
Industrial Water Use
Accounts for nearly 50% of all water
withdrawal in US, and 23% worldwide
90% of water used by industry is for
cooling , and is returned to the source.
Water used to dissipate and transport
waste -- stream and lake degradation
Water usage
Water usage
Domestic Water Use
• Average person in NA home uses
approximately 100 gallons of water per day
70% used as solvent to carry wastes
30% used for lawn and garden
very small fraction used for drinking
Natural processes cannot cope with highly
concentrated urban wastes
must be treated before release
Limnology
Ecology of freshwaters
Lakes, rivers, and streams
Lakes are born by catastrophe
age, and quietly die
Origins of Lakes
Kettle lakes
Origins of Lakes
Kettle lakes
glacier
Origins of Lakes
Kettle lakes
•
glacier
Origins of Lakes
Kettle lakes
•
glacier
Origins of Lakes
Kettle lakes
•
glacier
Origins of Lakes
Glacial scouring
Origins of Lakes
Tectonic origins
Origins of Lakes
Tectonic origins
e.g. Lake Baikal
Origins of Lakes
Tectonic origins
e.g. Lake Baikal
Origins of Lakes
Volcanic origins
Crater Lake, OR
Origins of Lakes
Earthquake
Reelfoot Lake, TN
Origins of Lakes
New Madrid quakes
Reelfoot Lake, TN
Aging of Lakes
siltation
detritus sedimentation
emergent vegetation
wetland
Limnology
Extinct lakes
Lake Agassiz