Harvard Forest Chronic Nitrogen Plots Litter Decomposition Study Percent nitrogen Samples analysed with NIRSystems Near Infrared Spectrophotometer Collection Month Year Species Plot/Treatment n AvgPercent N SDPercentN 1 8 89 Red Pine Pine Control 2 0.62 0.03 2 11 89 Red Pine Pine Control 2 0.82 0.02 3 8 90 Red Pine Pine Control 2 0.99 0.04 4 11 90 Red Pine Pine Control 2 1.11 0.10 5 8 91 Red Pine Pine Control 2 1.15 0.02 6 11 91 Red Pine Pine Control 2 1.23 0.08 7 8 92 Red Pine Pine Control 2 1.35 0.01 8 11 92 Red Pine Pine Control 2 1.31 0.05 9 8 93 Red Pine Pine Control 2 1.33 0.00 10 11 93 Red Pine Pine Control 2 1.59 0.03 11 8 94 Red Pine Pine Control 4 1.53 0.04 12 11 94 Red Pine Pine Control 4 1.61 0.05 1 8 89 Red Pine Pine High N 2 0.60 0.02 2 11 89 Red Pine Pine High N 2 0.74 0.01 3 8 90 Red Pine Pine High N 2 1.02 0.02 4 11 90 Red Pine Pine High N 2 1.07 0.04 5 8 91 Red Pine Pine High N 2 1.19 0.03 6 11 91 Red Pine Pine High N 2 1.23 0.09 7 8 92 Red Pine Pine High N 2 1.54 0.06 8 11 92 Red Pine Pine High N 2 1.40 0.06 9 8 93 Red Pine Pine High N 2 1.43 0.15 10 11 93 Red Pine Pine High N 2 1.53 0.03 11 8 94 Red Pine Pine High N 4 1.50 0.07 12 11 94 Red Pine Pine High N 4 1.52 0.09 1 8 89 Red Pine Pine Low N 2 0.57 0.00 2 11 89 Red Pine Pine Low N 2 0.88 0.03 3 8 90 Red Pine Pine Low N 2 1.12 0.04 4 11 90 Red Pine Pine Low N 2 1.19 0.05 5 8 91 Red Pine Pine Low N 2 1.11 0.06 6 11 91 Red Pine Pine Low N 2 1.36 0.10 7 8 92 Red Pine Pine Low N 2 1.55 0.01 8 11 92 Red Pine Pine Low N 2 1.36 0.06 9 8 93 Red Pine Pine Low N 2 1.55 0.09 10 11 93 Red Pine Pine Low N 2 1.47 0.02 11 8 94 Red Pine Pine Low N 4 1.51 0.02 12 11 94 Red Pine Pine Low N 4 1.56 0.04 1 8 89 Red Pine HardControl 2 0.62 0.02 2 11 89 Red Pine HardControl 2 0.70 0.02 3 8 90 Red Pine HardControl 2 0.80 0.08 4 11 90 Red Pine HardControl 2 1.04 0.13 5 8 91 Red Pine HardControl 2 1.11 0.04 6 11 91 Red Pine HardControl 2 1.31 0.04 7 8 92 Red Pine HardControl 2 1.34 0.00 8 11 92 Red Pine HardControl 2 1.36 0.10 9 8 93 Red Pine HardControl 2 1.51 0.13 10 11 93 Red Pine HardControl 2 1.51 0.03 11 8 94 Red Pine HardControl 4 1.66 0.07 12 11 94 Red Pine HardControl 4 1.64 0.04 1 8 89 Red Pine Hard High N 2 0.68 0.02 2 11 89 Red Pine Hard High N 2 0.74 0.01 3 8 90 Red Pine Hard High N 2 0.96 0.02 4 11 90 Red Pine Hard High N 2 1.03 0.02 5 8 91 Red Pine Hard High N 2 1.21 0.12 6 11 91 Red Pine Hard High N 2 1.15 0.05 7 8 92 Red Pine Hard High N 2 1.36 0.03 8 11 92 Red Pine Hard High N 2 1.26 0.13 9 8 93 Red Pine Hard High N 2 1.45 0.05 10 11 93 Red Pine Hard High N 2 1.42 0.08 11 8 94 Red Pine Hard High N 4 1.45 0.08 12 11 94 Red Pine Hard High N 4 1.40 0.04 1 8 89 Red Pine Hard Low N 2 0.66 0.02 2 11 89 Red Pine Hard Low N 2 0.88 0.03 3 8 90 Red Pine Hard Low N 2 0.87 0.07 4 11 90 Red Pine Hard Low N 2 1.17 0.03 5 8 91 Red Pine Hard Low N 2 1.20 0.08 6 11 91 Red Pine Hard Low N 2 1.37 0.10 7 8 92 Red Pine Hard Low N 2 1.44 0.03 8 11 92 Red Pine Hard Low N 2 1.45 0.01 9 8 93 Red Pine Hard Low N 2 1.67 0.09 10 11 93 Red Pine Hard Low N 2 1.52 0.09 11 8 94 Red Pine Hard Low N 4 1.58 0.04 12 11 94 Red Pine Hard Low N 4 1.57 0.09 1 8 89 Red Maple Pine Control 2 1.17 0.02 2 11 89 Red Maple Pine Control 2 1.39 0.10 3 8 90 Red Maple Pine Control 2 1.60 0.03 4 11 90 Red Maple Pine Control 2 1.73 0.05 5 8 91 Red Maple Pine Control 2 1.67 0.10 6 11 91 Red Maple Pine Control 2 1.77 0.05 7 8 92 Red Maple Pine Control 2 1.88 0.03 8 11 92 Red Maple Pine Control 2 1.88 0.02 9 8 93 Red Maple Pine Control 2 1.89 0.06 10 11 93 Red Maple Pine Control 2 1.94 0.10 11 8 94 Red Maple Pine Control 4 1.91 0.04 12 11 94 Red Maple Pine Control 4 2.01 0.03 1 8 89 Red Maple Pine High N 2 1.21 0.01 2 11 89 Red Maple Pine High N 2 1.29 0.02 3 8 90 Red Maple Pine High N 2 1.53 0.01 4 11 90 Red Maple Pine High N 2 1.63 0.02 5 8 91 Red Maple Pine High N 2 1.78 0.03 6 11 91 Red Maple Pine High N 2 1.74 0.02 7 8 92 Red Maple Pine High N 2 1.89 0.01 8 11 92 Red Maple Pine High N 2 1.81 0.00 9 8 93 Red Maple Pine High N 2 1.80 0.05 10 11 93 Red Maple Pine High N 2 1.84 0.04 11 8 94 Red Maple Pine High N 4 1.87 0.03 12 11 94 Red Maple Pine High N 4 1.94 0.06 1 8 89 Red Maple Pine Low N 2 1.23 0.05 2 11 89 Red Maple Pine Low N 2 1.37 0.01 3 8 90 Red Maple Pine Low N 2 1.62 0.03 4 11 90 Red Maple Pine Low N 2 1.66 0.02 5 8 91 Red Maple Pine Low N 2 1.75 0.02 6 11 91 Red Maple Pine Low N 2 1.81 0.01 7 8 92 Red Maple Pine Low N 2 1.84 0.07 8 11 92 Red Maple Pine Low N 2 1.84 0.05 9 8 93 Red Maple Pine Low N 2 1.98 0.06 10 11 93 Red Maple Pine Low N 2 1.84 0.05 11 8 94 Red Maple Pine Low N 4 1.95 0.03 12 11 94 Red Maple Pine Low N 4 1.94 0.02 1 8 89 Red Maple HardControl 2 1.22 0.03 2 11 89 Red Maple HardControl 2 1.36 0.03 3 8 90 Red Maple HardControl 2 1.64 0.04 4 11 90 Red Maple HardControl 2 1.75 0.06 5 8 91 Red Maple HardControl 2 1.93 0.03 6 11 91 Red Maple HardControl 2 2.15 0.09 7 8 92 Red Maple HardControl 2 2.14 0.12 8 11 92 Red Maple HardControl 2 2.07 0.02 9 8 93 Red Maple HardControl 2 2.01 0.01 10 11 93 Red Maple HardControl 2 2.06 0.03 11 8 94 Red Maple HardControl 4 2.14 0.09 12 11 94 Red Maple HardControl 4 2.07 0.02 1 8 89 Red Maple Hard High N 2 1.30 0.06 2 11 89 Red Maple Hard High N 2 1.47 0.05 3 8 90 Red Maple Hard High N 2 1.72 0.02 4 11 90 Red Maple Hard High N 2 1.74 0.01 5 8 91 Red Maple Hard High N 2 1.95 0.03 6 11 91 Red Maple Hard High N 2 1.92 0.07 7 8 92 Red Maple Hard High N 2 1.99 0.10 8 11 92 Red Maple Hard High N 2 1.92 0.02 9 8 93 Red Maple Hard High N 2 1.97 0.03 10 11 93 Red Maple Hard High N 2 2.08 0.01 11 8 94 Red Maple Hard High N 4 2.18 0.13 12 11 94 Red Maple Hard High N 4 2.17 0.04 1 8 89 Red Maple Hard Low N 2 1.29 0.03 2 11 89 Red Maple Hard Low N 2 1.57 0.02 3 8 90 Red Maple Hard Low N 2 1.71 0.11 4 11 90 Red Maple Hard Low N 2 1.82 0.02 5 8 91 Red Maple Hard Low N 2 2.01 0.01 6 11 91 Red Maple Hard Low N 2 2.01 0.02 7 8 92 Red Maple Hard Low N 2 2.10 0.04 8 11 92 Red Maple Hard Low N 2 2.01 0.05 9 8 93 Red Maple Hard Low N 2 2.20 0.14 10 11 93 Red Maple Hard Low N 2 2.19 0.08 11 8 94 Red Maple Hard Low N 4 2.18 0.05 12 11 94 Red Maple Hard Low N 4 2.05 0.02 1 8 89 Black Oak HardControl 2 1.29 0.10 2 11 89 Black Oak HardControl 2 1.47 0.00 3 8 90 Black Oak HardControl 2 1.92 0.01 4 11 90 Black Oak HardControl 2 1.96 0.03 5 8 91 Black Oak HardControl 2 2.21 0.05 6 11 91 Black Oak HardControl 2 2.33 0.05 7 8 92 Black Oak HardControl 2 2.26 0.08 8 11 92 Black Oak HardControl 2 2.40 0.14 9 8 93 Black Oak HardControl 2 2.29 0.05 10 11 93 Black Oak HardControl 2 2.39 0.01 11 8 94 Black Oak HardControl 4 2.39 0.16 12 11 94 Black Oak HardControl 4 2.23 0.05 1 8 89 Black Oak Hard High N 2 1.37 0.02 2 11 89 Black Oak Hard High N 2 1.59 0.08 3 8 90 Black Oak Hard High N 2 1.87 0.03 4 11 90 Black Oak Hard High N 2 1.95 0.03 5 8 91 Black Oak Hard High N 2 2.25 0.06 6 11 91 Black Oak Hard High N 2 2.40 0.08 7 8 92 Black Oak Hard High N 2 2.29 0.05 8 11 92 Black Oak Hard High N 2 2.29 0.01 9 8 93 Black Oak Hard High N 2 2.50 0.01 10 11 93 Black Oak Hard High N 2 2.36 0.02 11 8 94 Black Oak Hard High N 4 2.43 0.08 12 11 94 Black Oak Hard High N 4 2.45 0.09 1 8 89 Black Oak Hard Low N 2 1.38 0.05 2 11 89 Black Oak Hard Low N 2 1.76 0.03 3 8 90 Black Oak Hard Low N 2 1.86 0.11 4 11 90 Black Oak Hard Low N 2 2.16 0.06 5 8 91 Black Oak Hard Low N 2 2.31 0.01 6 11 91 Black Oak Hard Low N 2 2.21 0.01 7 8 92 Black Oak Hard Low N 2 2.38 0.18 8 11 92 Black Oak Hard Low N 2 2.38 0.05 9 8 93 Black Oak Hard Low N 2 2.44 0.17 10 11 93 Black Oak Hard Low N 2 2.39 0.10 11 8 94 Black Oak Hard Low N 4 2.25 0.04 12 11 94 Black Oak Hard Low N 4 2.31 0.08 1 8 89 Yellow Birch Pine Control 2 1.58 0.13 2 11 89 Yellow Birch Pine Control 2 1.76 0.02 3 8 90 Yellow Birch Pine Control 2 1.84 0.08 4 11 90 Yellow Birch Pine Control 2 2.19 0.02 5 8 91 Yellow Birch Pine Control 2 2.13 0.05 6 11 91 Yellow Birch Pine Control 2 2.19 0.02 7 8 92 Yellow Birch Pine Control 2 2.29 0.06 8 11 92 Yellow Birch Pine Control 2 2.25 0.01 9 8 93 Yellow Birch Pine Control 2 2.27 0.02 10 11 93 Yellow Birch Pine Control 2 2.30 0.05 11 8 94 Yellow Birch Pine Control 4 2.29 0.07 12 11 94 Yellow Birch Pine Control 4 2.22 0.04 1 8 89 Yellow Birch Pine High N 2 1.63 0.04 2 11 89 Yellow Birch Pine High N 2 1.70 0.05 3 8 90 Yellow Birch Pine High N 2 1.84 0.01 4 11 90 Yellow Birch Pine High N 2 1.92 0.02 5 8 91 Yellow Birch Pine High N 2 2.14 0.01 6 11 91 Yellow Birch Pine High N 2 2.25 0.01 7 8 92 Yellow Birch Pine High N 2 2.19 0.09 8 11 92 Yellow Birch Pine High N 2 2.25 0.01 9 8 93 Yellow Birch Pine High N 2 2.22 0.02 10 11 93 Yellow Birch Pine High N 2 2.34 0.08 11 8 94 Yellow Birch Pine High N 4 2.28 0.05 12 11 94 Yellow Birch Pine High N 4 2.31 0.04 1 8 89 Yellow Birch Pine Low N 2 1.70 0.04 2 11 89 Yellow Birch Pine Low N 2 1.83 0.07 3 8 90 Yellow Birch Pine Low N 2 1.91 0.02 4 11 90 Yellow Birch Pine Low N 2 2.01 0.03 5 8 91 Yellow Birch Pine Low N 2 2.14 0.06 6 11 91 Yellow Birch Pine Low N 2 2.38 0.07 7 8 92 Yellow Birch Pine Low N 2 2.26 0.01 8 11 92 Yellow Birch Pine Low N 2 2.26 0.04 9 8 93 Yellow Birch Pine Low N 2 2.31 0.02 10 11 93 Yellow Birch Pine Low N 2 2.29 0.06 11 8 94 Yellow Birch Pine Low N 4 2.28 0.07 12 11 94 Yellow Birch Pine Low N 4 2.21 0.06