Soil chemistry along the canopy gradient from 1997 to 1999

Resin bags were buried at 10 plots on three canopy gradient sites at Coweeta Hydrologic Laboratory and the resin bag extracts were analyzed for nitrate (NO3), ammonium (NH4) and phosphate (PO4). Values will be compared with throughfall chemistry and frass weights to determine if there are any correlations due to canopy herbivory. For more information see Reynolds and Hunter, 2001 in Publications section below. We tested whether inputs from canopy herbivores would affect soil processes such as respiration, nutrient cycling, and decomposition along an elevation gradient. The five treatments we used were frass additions, throughfall additions, removal of all litter that fell during the study, removal of greenfall that fell during the study, and controls.