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Table 4 Summarized result for soil organic carbon and nitrogen carbon density output for each soil depth

From: Aboveground biomass, growth and yield for some selected introduced tree species, namely Cupressus lusitanica, Eucalyptus saligna, and Pinus patula in Central Highlands of Ethiopia

PlotSpeciesLUTSOCD.10.2012SOCD.10.2017SOCD.30.2012SOCD.30.2017SOCD.50.2012SOCD.50.2017SOCD.100.2012SOCD.100.2017SOND.10.2012SOND.10.2017SOND.30.2012SOND.30.2017SOND.50.2012SOND.50.2017SOND.100.2012SOND.100.2017
01CroplandCU26.4064.8051.10112.0366.40142.2390.90223.152.204.324.1010.765.8014.549.3024.06
0230.005.9876.1711.68103.7115.68156.2181.682.000.697.134.4910.378.4914.1216.74
0328.8024.4874.9754.12108.99107.42156.24187.291.802.885.227.828.4615.4311.6126.84
Mean ± SE (CU) 28.4±1.8331.75±30.0867.41±14.1459.28±50.2793.03±23.2288.44±65.37134.45±37.72164.04±73.552±0.22.63±1.835.48±1.537.69±3.148.21±2.3012.82±3.7811.68±2.4122.55±5.22
01Bare landDL14.9413.3934.8321.9548.3338.9958.8357.051.072.232.605.083.957.225.457.22
026.373.1316.277.8121.889.3026.6812.101.060.003.044.683.046.183.046.18
0318.240.9626.164.9229.686.8433.288.790.961.922.943.902.943.902.943.90
Mean ± SE (DL) 13.18±6.135.83±6.6325.75±9.2911.56±9.1133.30±13.6018.38±17.8939.60±16.9825.98±26.961.03±0.061.38±1.212.86±0.234.55±0.603.31±0.565.77±1.703.81±1.425.77±1.70
O1C.lusitanicaPF46.2044.2098.64111.23133.20142.01157.20209.213.306.127.8615.4310.0219.5314.8229.13
0274.4863.60160.5984.58184.35118.24216.75141.824.708.1011.3310.8913.4917.0117.0920.94
0324.2938.3050.2188.9267.10123.3394.33162.962.115.474.2710.805.6814.858.7122.05
Mean ± SD (C. lusitanica)48.32±25.1648.7±13.24103.15±55.3394.91±14.30128.22±58.78127.86±12.52156.09±61.22171.33±34.473.37±1.306.56±1.377.82±3.5312.37±2.659.73±3.9117.13±2.3413.54±4.3324.04±4.44
04E. salignaPF71.2071.82141.40155.12186.17187.84228.42222.944.002.289.405.4811.538.9315.7612.83
0553.0047.30106.4696.80135.32146.00178.22209.004.009.907.9615.849.7618.3013.6622.50
0659.0043.46188.96108.36246.08143.04296.13164.744.005.3013.1214.5717.8820.3522.4324.69
Mean ± SE (E. saligna)61.07±9.2754.19±15.39145.61±14.41120.09±30.88189.19±55.44158.96±25.06234.26±59.17198.89±30.394±0.005.83±3.8410.16±2.6611.96±5.6513.06±4.2715.86±6.0917.28±4.5820.01±6.31
07P. patulaPF40.8071.2488.30111.72104.50138.63122.00195.332.404.117.319.178.9313.3111.4317.36
0842.406.7282.14109.7699.42119.42121.42186.033.203.366.513.367.955.7810.7015.29
0940.1627.1680.6670.72111.98160.50146.98247.502.623.885.869.828.9916.0811.4922.08
Mean ± SE (P. patula)41.12±1.1535.04±32.9783.7±4.0597.4±23.13105.3±6.32139.52±20.55130.13±14.59209.62±33.132.74±0.413.78±0.386.56±0.737.45±3.568.62±0.5811.72±5.3311.21±0.4418.24±3.48
  1. CU cultivated land, DL degraded land, PF plantation forest, C Cupressus, E Eucalyptus, P Pinus, SOCD soil organic carbon density (t C ha−1), SOND soil organic nitrogen stock density (t N ha−1), SE standard error of the mean