Farm ponds in Iowa, built primarily for flood-control purposes, are designed and constructed for an expected lifespan, based on expected sedimentation rates. New research, led by a team from the Iowa Geological Survey, set out to determine how actual sedimentation rates correlate with the ponds’ original predicted longevity.
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Gully erosion fills flood-control ponds
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A farm pond in Wapello County, Iowa, is selected for study of longevity of ponds built as flood-control impoundments and their capacity to store phosphorus.
Valerie Diaz-Gibertini, research assistant with the Iowa Geological Survey, samples the headwaters of one of the project’s study ponds.
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