image of streambank erosion in Iowa

Eroding streambanks contribute a third or more of the phosphorus export from the state, according to estimates from ground-breaking research led by Keith Schilling and Matthew Streeter from the Iowa Geological Survey at the University of Iowa, along with co-investigators from Iowa DNR, Iowa State University and USDA.

https://www.cals.iastate.edu/inrc/study-helps-quantify-importance-eroding-streambanks-iowa%E2%80%99s-nutrient-reduction-efforts