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Old 11-10-2010, 12:18 PM   #1
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Default Most River Flows Across the US Are Altered by Land and Water

Most River Flows Across the US Are Altered by Land and Water Management
ScienceDaily
Nov. 3, 2010

Most river flows across the US are altered by land and water management
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The amount of water flowing in streams and rivers has been significantly altered in nearly 90 percent of waters that were assessed in a new nationwide USGS study. Flow alterations are a primary contributor to degraded river ecosystems and loss of native species.

"This USGS assessment provides the most geographically extensive analysis to date of stream flow alteration," said Bill Werkheiser, USGS Associate Director for Water. "Findings show the pervasiveness of stream flow alteration resulting from land and water management, the significant impact of altered stream flow on aquatic organisms, and the importance of considering this factor for sustaining and restoring the health of the Nation's streams and ecosystems...
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