Physical Sciences and Mathematics Commons^™

Multimodel Simulations Of Forest Harvesting Effects On Long-Term Productivity And Cn Cycling In Aspen Forests, Fugui Wang, David J. Mladenoff, Jodi A. Forrester, Juan A. Blanco, Robert M. Scheller, Scott D. Peckham, Cindy Keough, Melissa S. Lucash

Environmental Science and Management Faculty Publications and Presentations

The effects of forest management on soil carbon (C) and nitrogen (N) dynamics vary by harvest type and species. We simulated long-term effects of bole-only harvesting of aspen (Populus tremuloides) on stand productivity and interaction of CN cycles with a multiple model approach. Five models, Biome-BGC, CENTURY, FORECAST, LANDIS-II with Century-based soil dynamics, and PnET-CN, were run for 350 years with seven harvesting events on nutrient-poor, sandy soils representing northwestern Wisconsin, USA. Twenty CN state and flux variables were summarized from the models' outputs, and statistically analyzed using ordination and variance analysis methods. The multiple models' averages suggest that bole-only …