BBE Seminar Series: Nov. 10, 3pm
BBE Seminar to be held November 10 at 3pm in the Cargill Building's Room 105.
Dr. William Crumpton will present his seminar
"Water quality performance of wetlands receiving nonpoint source nitrogen loads and potential of targeted wetland restoration to reduce nitrogen loads in Iowa."
Presented by Dr. William G. Crumpton
Professor, Department of Ecology, Evolution and Organismal Biology
Chair, Undergraduate Environmental Science - Iowa State University
Wetland restoration is a promising strategy for reducing surface water contamination in agricultural watersheds, and in particular for reducing agricultural nitrate loads to the Mississippi River and its tributaries. Over the past 10 years, more than 70 wetlands have been restored through the Iowa Conservation Reserve Enhancement Program (CREP) with the explicit goal of intercepting and reducing nonpoint source nitrate loads. In this seminar, Dr. Crumpton will discuss his research on the effectiveness of wetlands at reducing agricultural, nonpoint source nitrogen loads, and the development of models for predicting wetland performance at scale, and in combination with other practices. The results of his research have been extended to project statewide nitrate load reductions for Iowa using a combination of nutrient management and targeted wetland restorations. His analyses suggest that targeted wetland restorations will be critical to achieving a 45% reduction in annual nitrate load for Iowa.
William Crumpton teaches courses on environmental systems and conducts research on the hydrologic and water quality functions of wetlands at Iowa State University. Dr. Crumpton is an authority on the functions of wetlands in agricultural landscapes and his research provided the scientific and technical foundation for development and implementation of the Iowa Conservation Reserve Enhancement Program, a $100 million program using targeted wetland restorations to reduce nitrate loads from agricultural watersheds.