Abstract

A dozen years ago, two geoscientists at Franklin & Marshall College showed that many meandering, high-banked streams in the eastern United States look nothing like the low-banked, marshy waterways that existed when European explorers first arrived. The original streams, they argued, are now buried beneath millions of tons of legacy sediment that was released by colonial-era farming and logging, and then trapped behind countless dams built to power flour, timber, and textile mills. The work challenged conventional wisdom and challenged restoration practices. Now, the duo is hoping to inspire a new approach to stream restoration, returning a stream to its marshy, precolonial glory, and demonstrating the environmental payoff such strategies can deliver.

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