Editors Del Grosso, Ahuja, and Parton present readers with a collection of academic and expert contributions on a wide variety of contemporary advances in the modeling of complex agricultural systems and their outputs. The eleven contributions that make up the main body of the text are devoted to nitrous oxide emissions from uplands in Northern China, modeling greenhouse gas emissions from enteric fermentation, measuring and modeling carbon stock change estimates for U.S. forests and uncertainties from apparent inter-annual variability, and many other related subjects. Stephan J. Del Grosso and Lajpat R. Ahuja are with the USDA Agricultural Systems Research Unit in Colorado. William J. Parton is a faculty member of the University of Colorado. Annotation 2016 Ringgold, Inc., Portland, OR (protoview.com)