Lecture+10-6-08+Watersheds

Lecture+10-6-08+Watersheds - Rivers carry not only water,...

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Watersheds and Rivers ES 10 Fall 2008
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Watersheds range in size, from a few tens of square yards…. .to a square mile…. .
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Up to our biggest, the Amazon river basin 2.3 million square miles
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What’s in common between Dry Donkey Creek in eastern Wyoming….
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And the city of New Orleans, seen over the hood of a 1974 Lincoln Continental towncar?
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They’re hydrologically connected, both in the drainage basin (watershed) of the Mississippi River
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Unformatted text preview: Rivers carry not only water, but sediment as well Let’s consider some human interactions with watersheds Traditional water quality concerns Biological/chemical oxygen demand Ability of rivers/lakes to absorb pollutants, recover DO levels Clean Water Act (1972, 1977) regulates discharges into waters goals: swimmable/fishable water Funding wastewater treatment Point vs Nonpoint sources...
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Lecture+10-6-08+Watersheds - Rivers carry not only water,...

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