One LAAS graduate student, Tyler Nigon, presented his research at the UMN Earth & Environmental Sciences Student Research Symposium (UMNEarthSRS).
UMNEarthSRS is an event where graduate and undergraduate students can present their scientific research in a friendly, constructive setting. Started by a few graduate students in Spring 2015, this event continues to be planned and run by a committee of graduate students in the Department of Earth and Environmental Sciences and the Department of Soil, Water, and Climate.
The social cost of nitrogen: acknowledging the gap between the economic and socially optimum rateTyler Nigon, David Mulla, Ce Yang, Daniel KaiserEffectively managing nitrogen (N) fertilizer inputs to corn using a comprehensive ecosystem services-based approach requires that both the benefits and societal costs resulting from N application be considered. Efforts have been made to quantify the social costs of N that aim to reduce exposure to reactive N and improve general well-being. However, many of these results are based on regional or global models, and largely ignore the reality that grain yield response to N varies spatially within a field and from year to year. Results from a traditional economic response analysis will be compared to an analysis that considers an added social cost that represents unintended costs from pollution caused by reactive nitrogen. |