2008 Joint Annual Meeting (5-9 Oct. 2008): Modeling of the Nitrogen Cycle.

749-20 Modeling of the Nitrogen Cycle.



Wednesday, 8 October 2008
George R. Brown Convention Center, Exhibit Hall E
Miguel L. Cabrera, University of Georgia, Dept. of Crop & Soil Sciences, 3111 Miller Plant Sciences, Athens, GA 30602, Jean-Alex Molina, Soil, Water, and Climate, University of Minnesota, S405 Soil Science, 1991 Upper Buford Circle - University of Minnesota, St. Paul, MN 55108 and Merle Vigil, USDA-ARS, USDA-ARS, Central Great Plains Research Station, 40335 County Rd. GG, Akron, CO 80720-1029
The fast increase in computer power observed over the last two decades has encouraged the development of detailed computer simulation models for C and N cycling in agricultural and natural ecosystems.  Models of the N cycle may be useful to understand and manage ecosystems so as to protect environmental quality and ensure long-term sustainability. In this poster, we present a review of current approaches used to model different transformations in the N cycle, including mineralization, nitrification, denitrification, and ammonia volatilization.