B4 - The Sny Magill national monitoring project: A ten year study on the
effects of best management practices on water quality.
To print the slides below, click the printer icon on
the menu bar above the slides.
Chad Fields, Iowa Geological Survey; Jeff Tisl, Eric Palas, Division of Soil
Conservation, Iowa Department of Agriculture and Land Stewardship. From 1991
until 2001, the Sny Magill watershed in northeastern Iowa underwent a series
of best management practice (BMP) implementations. These practices were meant
to reduce sediment, pesticides, and nutrients entering Sny Magill Creek. A
paired watershed monitoring design was employed to evaluate BMP effectiveness.
Results indicate that during the project period sediment and turbidity in Sny
Magill Creek decreased, while nitrates and discharge increased.
