2012 CREST Annual Report - Alabama A&M University

Table 4. Soil physical and chemical properties at treatments site in Bankhead National Forest, AL.Trmt# Application pH_H2O C (%) N (%) S (%) C/N Ratio NH 4 NO 3Conductivity (µS/cm)CECmeq/100gsoil1 Reference (no treatment) 4.66±0.22 3.11±1.02 0.126±0.033 0.016±0.004 24.42±1.83 11.12±5.09 9.37±13.35 51.77±6.37 3.03±0.352 Burn only- 10 yr 4.34±0.45 2.99±0.46 0.122±0.022 0.014±0.002 24.72±2.58 4.35±0.25 2.22±1.94 48.77±9.41 3.51±0.763 Burn only- 3 yr 4.72±0.24 2.37±0.25 0.101±0.004 0.012±0.001 23.48±1.65 6.29±1.60 1.60±0.70 40.87±5.50 2.30±0.894Thin to 11.46 m 2 ha -1 basalarea4.85±0.23 2.47±0.45 0.104±0.018 0.011±0.001 16.47±13.66 9.87±0.60 4.94±1.32 42.07±4.65 2.32±0.535 Thin 17. 22 m 2 ha -1 basal area 4.57±0.28 3.49±1.38 0.129±0.028 0.013±0.003 26.54±5.17 4.86±1.9 5.70±0.34 40.13±6.99 3.40±1.156789Thin 11.46 m 2 ha -1 basal area +3yr burnThin 17.22 m 2 ha -1 basal area +burnThin 11.46 m 2 ha -1 basal area +10yr burnThin 17.22 m 2 ha -1 basal area +10yr burn5.06±0.1 1.97±0.24 0.085±0.005 0.012±0.001 23.18±2.13 6.71±0.79 1.38±0.29 38.33±4.11 2.21±0.324.74±0.22 1.90±0.16 0.090±0.011 0.012±0.001 21.35±1.71 5.68±1.38 2.66±0.96 37.17±8.35 2.71±0.694.73±0.48 1.59±0.54 0.081±0.021 0.011±0.003 19.30±1.99 5.92±0.52 2.75±2.84 33.70±2.12 1.92±0.634.86±0.16 2.38±0.32 0.113±0.025 0.017±0.010 21.37±2.06 12.91±4.68 6.98±1.29 42.33±13.75 1.73±1.13