TRACE GAS EXCHANGES IN MIDWEST CROPPING SYSTEMS
Location: Soil, Water, and Air Resources Research Unit
Title: Field measurement results versus DAYCENT simulations in nitrous oxide emission from agricultural soil in Central Iowa
Submitted to: ASA-CSSA-SSSA Annual Meeting Abstracts
Publication Type: Abstract Only
Publication Acceptance Date: November 16, 2006
Publication Date: November 16, 2006
Citation: Jarecki, M.K., Parkin, T.B., Chan, A., Kaspar, T.C., Hatfield, J.L., Jones, R.A. 2006. Field measurement results versus DAYCENT simulations in nitrous oxide emission from agricultural soil in Central Iowa [CD-ROM]. In: ASA-CSSA-SSSA Annual Meeting Abstracts. Nov. 12-16, 2006, Indianapolis, IN.
Nitrous oxide emissions measured from corn-soybean rotations in Central Iowa were compared with the results obtained from DAYCENT simulations. Available whole year emission field data taken weekly during the growing season and monthly during the winter time, were used. DAYCENT simulations were performed using the field soil, management and weather conditions as input variables. Daily and cumulative emission predicted by DAYCENT in several cases differed significantly from the results obtained from field measurements.