Long Term Soil Productivity Study in a Cherry-maple stand in West Virginia: Soil Nutrients

by

Mary Beth Adams

USDA Forest Service, 180 Canfield Street, Morgantown WV 26505

Abstract – In 1997, an experiment was installed on the Monongahela National Forest, West Virginia to evaluate changes in above and belowground productivity over time, and as affected by removal of Ca and Mg. This experiment is nearly identical to the Fork Mountain Long Term Soil Productivity, located on the Fernow Experimental Forest, installed in 1996. The Middle Mountain Long term Soil Productivity study however, was installed in a cherry- maple stand, located at a higher elevation (around 1100 m). Treatments include: Whole tree harvest (all aboveground woody biomass removed > 10-cm diameter); Whole-tree harvest +ammonium sulfate additions (WT+NS); whole-tree harvest + liming only (WT+Lime); whole-tree harvest + ammonium sulfate + liming (WT+NS+Lime); and no treatment (CTRL). There are 4 replications of each treatment. The site was extensively characterized prior to beginning treatments, including sampling of soils for nutrients and soil chemical properties. Soils have been resampled every 5 years to evaluate the effects of the treatments on soil properties. Results from the first 15 years of this experiment will be presented and discussed.