average: 77.6 hourly 3 range: 30 -97. water managementchapter 16 name: eee105 password: prairie
TRANSCRIPT
Average: 77.6
Hourly 3
Range: 30 -97
Water Management Chapter 16
http://www.life.uiuc.edu/animalbiology/105/Name: eee105Password: prAIRie
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
domestic
industry
agriculture
How water is used
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
, and 23% worldwide
, and is returned to the source.
Accounts for nearly 50% of all water withdrawal in US
90% of water used by industry is for cooling
Water usage
Industrial Water Use
, and 23% worldwide
, and is returned to the source.
Accounts for nearly 50% of all water withdrawal in US
90% of water used by industry is for cooling
Water used to dissipate and transport waste -- stream and lake degradation
Water usage
Water usage
Domestic Water Use
70% used as solvent to carry wastes 30% used for lawn and garden very small fraction used for drinking
must be treated before release
Natural processes cannot cope with highly concentrated urban wastes
• Average person in NA home uses approximately 100 gallons of water per day
Ecology of freshwaters
Lakes, rivers, and streams
LimnologyLimnology
Lakes are born by catastrophe
age, and quietly die
Origins of LakesOrigins of Lakes
Kettle lakes
Kettle lakes
glacier
Origins of LakesOrigins of Lakes
Kettle lakes
•
glacier
Origins of LakesOrigins of Lakes
Kettle lakes
•
glacier
Origins of LakesOrigins of Lakes
Kettle lakes
•
glacier
Origins of LakesOrigins of Lakes
Glacial scouring Origins of LakesOrigins of Lakes
Tectonic origins Origins of LakesOrigins of Lakes
Tectonic origins Origins of LakesOrigins of Lakes
e.g. Lake Baikal
Tectonic origins Origins of LakesOrigins of Lakes
e.g. Lake Baikal
Volcanic origins 4,000 feet d
eepCrater Lake, OR
Origins of LakesOrigins of Lakes
Reelfoot Lake, TN
Origins of LakesOrigins of Lakes
Earthquake
New Madrid quakes
Origins of LakesOrigins of Lakes
Reelfoot Lake, TN
siltation detritus sedimentation
emergent vegetationwetland
Aging of LakesAging of Lakes
LimnologyLimnology
Extinct lakes
Lake Agassiz