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Ecological impacts of dams

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MrJewett

Dams can have significant ecological impacts: 1) They obstruct fish migration and disrupt populations. 2) Water quality is reduced as still water gathers pollution and alters temperatures affecting oxygen and chemical reactions. 3) Sediment builds up behind dams, raising water levels and putting pressure on dam walls which could eventually burst, flooding towns.

Technology
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Ecological Impacts of Dams Lora Stoyanova Viara Tzvetkova Goran Georgiev 10/3
Impact on Fishes ,[object Object],[object Object],[object Object],[object Object],[object Object],http://blog.mlive.com/chronicle/2008/04/07deadfish.jpg
Water Quality ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],http://upload.wikimedia.org/wikipedia/commons/8/8b/Dam_with_water.jpg
Water Quality - Carbon ,[object Object],[object Object],[object Object],[object Object]
Loss of Sediment ,[object Object],[object Object],[object Object],[object Object]
Impact on People ,[object Object],[object Object],[object Object]
Three Reasons for Dams ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Changed Environmental Requirements ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Dam Risk Assessment ,[object Object],[object Object],[object Object],[object Object],[object Object]
Examples ,[object Object],[object Object],http://shipbright.files.wordpress.com/2009/08/aral_sea_1989-20081.jpg http://www.indraz.net/wp-content/uploads/2008/02/3gorges-before-and-during.jpg
Aral Sea ,[object Object],[object Object],[object Object],[object Object],[object Object],http://maps.grida.no/go/graphic/shrinking_of_the_aral_sea_socio_economic_impacts ,[object Object],[object Object],[object Object],[object Object],[object Object]
Reason and Solution ,[object Object],[object Object],[object Object],[object Object],[object Object],http://www.orexca.com/aral_sea.shtml
Three Gorges Dam ,[object Object],[object Object],[object Object],[object Object],[object Object],http://www.arch.mcgill.ca/prof/sijpkes/arch374/winter2001/dbiggs/chinamap.gif
Impact ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Works Cited ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

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  • 1. Ecological Impacts of Dams Lora Stoyanova Viara Tzvetkova Goran Georgiev 10/3
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