Stream water and soil solution responses to 5 years of nitrogen and sulfur additions at the Fernow Experimental Forest, West Virginia

Acidification and Nutrient Cycling

“…The addition of N to WS3 via the ammonium sulfate fertilizer clearly increased the NO 3 -N export from the watershed (Adams et al 1997. However, there was no detectable effect on NH 4 concentrations in stream water; indeed, NH 4 remains at very low levels in the stream water draining both WS3 and WS4.…”

Site productivity and diversity of the Middle Mountain long-term soil productivity study, West Virginia: Pre-experimental site characterization

“…• No treatment (REF) Block Treatment Browsed Slash Stony surface 17 I REF 0 95 0 18 I WT+NS 5 95 0 19 I WT+LIME 0 95 0 20 I WT+NS+LIME 0 90 0 21 I WT 10 100 0 22 II WT+NS 0 100 0 23 II WT+LIME 5 100 0 24 II REF 0 85 5 25 II WT 20 85 0 26 II WT+NS+LIME 30 100 0 27 III WT+NS+LIME 10 85 0 28 III REF 5 95 20 29 III WT+LIME 15 95 0 30 III WT 10 100 0 31 III WT+NS 0 100 0 32 IV WT 15 95 0 33 IV WT+LIME 10 95 0 34 IV WT+NS+LIME 15 15 0 35 IV REF 15 100 0 36 IV WT+NS 25 The ammonium sulfate fertilizer addition is designed to accelerate base cation leaching from the soil and is based on other research (Adams et al 1997, Peterjohn et al 1996, which demonstrated a...…”

“…Ambient rates of deposition in throughfall on the Fernow Experimental Forest were estimated to be 15 kg N/ha/yr and 17 kg S/ha/yr (Helvey and Kunkle 1986 (Adams et al 1997). Control plots will provide an untreated, uncut reference (See Fig.…”

Effects of Nitrogen Deposition on Foliar Litter Decomposition and C, N, Ca, and P Dynamics in a Regenerating Forest

“…In central Appalachia, the Fernow Experimental Forest (FEF) in West Virginia receives about 17 kg of N ha -1 yr -1 and about 20 kg of S ha -1 yr -1 through atmospheric deposition (Adams et al, 2000). The FEF also contains sites that are nearing or have reached N saturation Peterjohn et al, 1996;Adams et al, 1997). Nihlgard (1985) reported the potential of atmospheric N deposition to saturate biological demand and impact ecosystem processes.…”