Average: 77.6 Hourly 3 Range:

Water ManagementChapter 16 Name: eee105 Password: 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

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 Limnology Lakes are born by catastrophe age, and quietly die

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 Origins of Lakes e.g. Lake Baikal

Tectonic origins Origins of Lakes e.g. Lake Baikal

Volcanic origins 4,000 feet deep Crater Lake, OR Origins of Lakes

Reelfoot Lake, TN Origins of Lakes Earthquake

New Madrid quakes Origins of Lakes Reelfoot Lake, TN

siltation detritus sedimentation emergent vegetation wetland Aging of Lakes

Limnology Extinct lakes Lake Agassiz