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Soil Organic Carbon Sequestration by Tillage and Crop Rotation: A Global Data Analysis (Full Database)

West, T.O., and W.M. Post. 2002. Soil Organic Carbon Sequestration by Tillage and Crop Rotation: A Global Data Analysis. Carbon Dioxide Information Analysis Center, U.S. Department of Energy, Oak Ridge National Laboratory, Oak Ridge, Tennessee, U.S.A.

Full data base of agricultural experiments used in this study.

Site ID Tillage1 Crop2 Fertilizer3 (kg/ha/yr) Sample year Sampling Depth (cm) Depth increment (cm) SOC4 (%) SOC4 (g/m2)
KY01 n/a sod n/a 1975 0-5 5 2.70  
KY01 n/a sod n/a 1975 5-15 10 1.39  
KY01 n/a sod n/a 1975 15-30 15 0.79  
KY01 n/a sod n/a 1980 0-5 5 3.81  
KY01 n/a sod n/a 1980 5-15 10 1.73  
KY01 n/a sod n/a 1980 15-30 15 0.90  
KY01 n/a sod n/a 1989 0-5 5 3.11  
KY01 n/a sod n/a 1989 5-15 10 1.41  
KY01 n/a sod n/a 1989 15-30 15 1.11  
KY01 CT corn 0 1975 0-5 5 1.33  
KY01 CT corn 0 1975 5-15 10 1.24  
KY01 CT corn 0 1975 15-30 15 0.68  
KY01 CT corn 0 1980 0-5 5 1.25  
KY01 CT corn 0 1980 5-15 10 1.38  
KY01 CT corn 0 1980 15-30 15 0.78  
KY01 CT corn 0 1989 0-5 5 1.31  
KY01 CT corn 0 1989 5-15 10 1.55  
KY01 CT corn 0 1989 15-30 15 0.95  
KY01 CT corn 84 1975 0-5 5 1.46  
KY01 CT corn 84 1975 5-15 10 1.40  
KY01 CT corn 84 1975 15-30 15 0.91  
KY01 CT corn 84 1980 0-5 5 1.40  
KY01 CT corn 84 1980 5-15 10 1.34  
KY01 CT corn 84 1980 15-30 15 1.01  
KY01 CT corn 84 1989 0-5 5 1.48  
KY01 CT corn 84 1989 5-15 10 1.59  
KY01 CT corn 84 1989 15-30 15 1.21  
KY01 CT corn 168 1975 0-5 5 1.57  
KY01 CT corn 168 1975 5-15 10 1.44  
KY01 CT corn 168 1975 15-30 15 0.85  
KY01 CT corn 168 1980 0-5 5 1.39  
KY01 CT corn 168 1980 5-15 10 1.34  
KY01 CT corn 168 1980 15-30 15 0.70  
KY01 CT corn 168 1989 0-5 5 1.54  
KY01 CT corn 168 1989 5-15 10 1.72  
KY01 CT corn 168 1989 15-30 15 1.12  
KY01 CT corn 336 1975 0-5 5 1.57  
KY01 CT corn 336 1975 5-15 10 1.40  
KY01 CT corn 336 1975 15-30 15 0.79  
KY01 CT corn 336 1980 0-5 5 1.46  
KY01 CT corn 336 1980 5-15 10 1.49  
KY01 CT corn 336 1980 15-30 15 0.94  
KY01 CT corn 336 1989 0-5 5 1.73  
KY01 CT corn 336 1989 5-15 10 1.82  
KY01 CT corn 336 1989 15-30 15 1.23  
KY01 NT corn 0 1975 0-5 5 2.13  
KY01 NT corn 0 1975 5-15 10 1.26  
KY01 NT corn 0 1975 15-30 15 0.79  
KY01 NT corn 0 1980 0-5 5 2.15  
KY01 NT corn 0 1980 5-15 10 1.09  
KY01 NT corn 0 1980 15-30 15 0.57  
KY01 NT corn 0 1989 0-5 5 2.50  
KY01 NT corn 0 1989 5-15 10 1.55  
KY01 NT corn 0 1989 15-30 15 0.89  
KY01 NT corn 84 1975 0-5 5 2.30  
KY01 NT corn 84 1975 5-15 10 1.29  
KY01 NT corn 84 1975 15-30 15 0.79  
KY01 NT corn 84 1980 0-5 5 2.95  
KY01 NT corn 84 1980 5-15 10 1.28  
KY01 NT corn 84 1980 15-30 15 0.94  
KY01 NT corn 84 1989 0-5 5 2.65  
KY01 NT corn 84 1989 5-15 10 1.69  
KY01 NT corn 84 1989 15-30 15 0.90  
KY01 NT corn 168 1975 0-5 5 2.38  
KY01 NT corn 168 1975 5-15 10 1.22  
KY01 NT corn 168 1975 15-30 15 0.72  
KY01 NT corn 168 1980 0-5 5 2.80  
KY01 NT corn 168 1980 5-15 10 1.36  
KY01 NT corn 168 1980 15-30 15 0.66  
KY01 NT corn 168 1989 0-5 5 2.89  
KY01 NT corn 168 1989 5-15 10 1.66  
KY01 NT corn 168 1989 15-30 15 0.87  
KY01 NT corn 336 1975 0-5 5 2.62  
KY01 NT corn 336 1975 5-15 10 1.34  
KY01 NT corn 336 1975 15-30 15 0.84  
KY01 NT corn 336 1980 0-5 5 2.93  
KY01 NT corn 336 1980 5-15 10 1.15  
KY01 NT corn 336 1980 15-30 15 0.90  
KY01 NT corn 336 1989 0-5 5 3.25  
KY01 NT corn 336 1989 5-15 10 1.74  
KY01 NT corn 336 1989 15-30 15 1.07  
AL01 CT Initial n/a 1980 0-15 15 1.00  
AL01 CT Initial n/a 1980 15-30 15 0.81  
AL01 CT Initial n/a 1980 30-45 15 0.53  
AL01 CT Initial n/a 1980 45-60 15 0.33  
AL01 CT soybean n/a 1990 0-5 5 0.98  
AL01 CT soybean n/a 1990 5-10 5 0.97  
AL01 CT soybean n/a 1990 10-20 10 1.00  
AL01 CT soybean n/a 1990 20-30 10    
AL01 CT soybean n/a 1990 30-45 15    
AL01 NT soybean n/a 1990 0-5 5 1.60  
AL01 NT soybean n/a 1990 5-10 5 1.51  
AL01 NT soybean n/a 1990 10-20 10 1.00  
AL01 NT soybean n/a 1990 20-30 10    
AL01 NT soybean n/a 1990 30-45 15    
AL01 CT corn n/a 1990 0-5 5 1.07  
AL01 CT corn n/a 1990 5-10 5 1.07  
AL01 CT corn n/a 1990 10-20 10 1.00  
AL01 CT corn n/a 1990 20-30 10    
AL01 CT corn n/a 1990 30-45 15    
AL01 NT corn n/a 1990 0-5 5 2.06  
AL01 NT corn n/a 1990 5-10 5 1.82  
AL01 NT corn n/a 1990 10-20 10 1.09  
AL01 NT corn n/a 1990 20-30 10    
AL01 NT corn n/a 1990 30-45 15    
AL01 CT corn, soybean n/a 1990 0-5 5 1.02  
AL01 CT corn, soybean n/a 1990 5-10 5 1.00  
AL01 CT corn, soybean n/a 1990 10-20 10 0.89  
AL01 CT corn, soybean n/a 1990 20-30 10    
AL01 CT corn, soybean n/a 1990 30-45 15    
AL01 NT corn, soybean n/a 1990 0-5 5 1.84  
AL01 NT corn, soybean n/a 1990 5-10 5 1.60  
AL01 NT corn, soybean n/a 1990 10-20 10 0.88  
AL01 NT corn, soybean n/a 1990 20-30 10    
AL01 NT corn, soybean n/a 1990 30-45 15    
AL02 CT cotton no legume 1988 0-10 10 0.56  
AL02 CT cotton no legume 1992 0-10 10 0.50  
AL02 CT cotton no legume 1994 0-10 10 0.35  
AL02 CT cotton no legume 1997 0-10 10 0.50  
AL02 CT cotton legume 1988 0-10 10 1.22  
AL02 CT cotton legume 1992 0-10 10 0.88  
AL02 CT cotton legume 1994 0-10 10 1.04  
AL02 CT cotton legume 1997 0-10 10 0.84  
AL02 CT cotton-corn legume 1988 0-10 10 1.09  
AL02 CT cotton-corn legume 1992 0-10 10 1.06  
AL02 CT cotton-corn legume 1994 0-10 10 1.00  
AL02 CT cotton-corn legume 1997 0-10 10 0.85  
AL02 CT cotton-corn-soybean/rye legume 1988 0-10 10 1.49  
AL02 CT cotton-corn-soybean/rye legume 1992 0-10 10 1.37  
AL02 CT cotton-corn-soybean/rye legume 1994 0-10 10 1.10  
AL02 CT cotton-corn-soybean/rye legume 1997 0-10 10 1.27  
Bri01 CT barley n/a 1988 0-7.5 7.5 2.80  
Bri01 NT barley n/a 1988 0-7.5 7.5 3.53  
Alb01 CT canola, wheat, barley, fallow n/a 1995 0-5 5 4.78  
Alb01 CT canola, wheat, barley, fallow n/a 1995 5-12.5 7.5 4.03  
Alb01 CT canola, wheat, barley, fallow n/a 1995 12.5-20 7.5 2.76  
Alb01 RT canola, wheat, barley, fallow n/a 1995 0-5 5 4.78  
Alb01 RT canola, wheat, barley, fallow n/a 1995 5-12.5 7.5 4.03  
Alb01 RT canola, wheat, barley, fallow n/a 1995 12.5-20 7.5 2.76  
Alb01 NT canola, wheat, barley, fallow n/a 1995 0-5 5 4.78  
Alb01 NT canola, wheat, barley, fallow n/a 1995 5-12.5 7.5 4.03  
Alb01 NT canola, wheat, barley, fallow n/a 1995 12.5-20 7.5 2.76  
GA01 CT rye n/a 1979 0-10 10 2.41  
GA01 NT rye n/a 1979 0-10 10 2.34  
GA01 CT rye n/a 1982 0-5 5 1.54  
GA01 CT rye n/a 1982 5-13 8 1.45  
GA01 CT rye n/a 1982 13-21 8 0.73  
GA01 NT rye n/a 1982 0-5 5 2.77  
GA01 NT rye n/a 1982 5-13 8 0.90  
GA01 NT rye n/a 1982 13-21 8 0.49  
GA01 CT rye n/a 1984 0-5 5 1.12  
GA01 CT rye n/a 1984 5-13 8 1.06  
GA01 CT rye n/a 1984 13-21 8 0.59  
GA01 NT rye n/a 1984 0-5 5 2.00  
GA01 NT rye n/a 1984 5-13 8 0.76  
GA01 NT rye n/a 1984 13-21 8 0.55  
GA01 CT rye n/a 1985 0-5 5 1.23  
GA01 CT rye n/a 1985 5-13 8 0.99  
GA01 CT rye n/a 1985 13-21 8 0.58  
GA01 NT rye n/a 1985 0-5 5 2.02  
GA01 NT rye n/a 1985 5-13 8 0.84  
GA01 NT rye n/a 1985 13-21 8 0.53  
GA01 CT rye n/a 1986 0-5 5 1.27  
GA01 CT rye n/a 1986 5-13 8 1.14  
GA01 CT rye n/a 1986 13-21 8 0.78  
GA01 NT rye n/a 1986 0-5 5 1.95  
GA01 NT rye n/a 1986 5-13 8 0.91  
GA01 NT rye n/a 1986 13-21 8 0.46  
GA01 CT rye n/a 1988 0-5 5 1.26  
GA01 CT rye n/a 1988 5-13 8 1.08  
GA01 CT rye n/a 1988 13-21 8 0.47  
GA01 NT rye n/a 1988 0-5 5 1.88  
GA01 NT rye n/a 1988 5-13 8 0.83  
GA01 NT rye n/a 1988 13-21 8 0.43  
GA01 CT rye n/a 1990 0-5 5 1.17  
GA01 CT rye n/a 1990 5-13 8 0.97  
GA01 CT rye n/a 1990 13-21 8 0.62  
GA01 NT rye n/a 1990 0-5 5 2.26  
GA01 NT rye n/a 1990 5-13 8 0.83  
GA01 NT rye n/a 1990 13-21 8 0.45  
NE01a n/a sod n/a 1970 0-20 20 1.75  
NE01a n/a sod n/a 1972 0-20 20    
NE01a n/a sod n/a 1976 0-20 20    
NE01a n/a sod n/a 1978 0-20 20    
NE01a n/a sod n/a 1981 0-20 20 1.70  
NE01a n/a sod n/a 1982 0-20 20 1.77  
NE01a n/a sod n/a 1983 0-20 20 1.64  
NE01a n/a sod n/a 1986 0-20 20 1.90  
NE01a n/a sod n/a 1990 0-20 20 1.80  
NE01a NT wheat-fallow n/a 1970 0-20 20 1.78  
NE01a NT wheat-fallow n/a 1972 0-20 20    
NE01a NT wheat-fallow n/a 1976 0-20 20    
NE01a NT wheat-fallow n/a 1978 0-20 20 1.53  
NE01a NT wheat-fallow n/a 1981 0-20 20 1.64  
NE01a NT wheat-fallow n/a 1982 0-20 20 1.60  
NE01a NT wheat-fallow n/a 1983 0-20 20 1.57  
NE01a NT wheat-fallow n/a 1986 0-20 20 1.74  
NE01a NT wheat-fallow n/a 1990 0-20 20 1.61  
NE01a RT wheat-fallow n/a 1970 0-20 10 1.69  
NE01a RT wheat-fallow n/a 1972 0-20 20    
NE01a RT wheat-fallow n/a 1976 0-20 20    
NE01a RT wheat-fallow n/a 1978 0-20 20    
NE01a RT wheat-fallow n/a 1981 0-20 20 1.50  
NE01a RT wheat-fallow n/a 1982 0-20 20 1.47  
NE01a RT wheat-fallow n/a 1983 0-20 20    
NE01a RT wheat-fallow n/a 1986 0-20 20 1.53  
NE01a RT wheat-fallow n/a 1990 0-20 20 1.43  
NE01a CT wheat-fallow n/a 1970 0-20 20 1.63  
NE01a CT wheat-fallow n/a 1972 0-20 20    
NE01a CT wheat-fallow n/a 1976 0-20 20    
NE01a CT wheat-fallow n/a 1978 0-20 20 1.28  
NE01a CT wheat-fallow n/a 1981 0-20 20 1.31  
NE01a CT wheat-fallow n/a 1982 0-20 20 1.30  
NE01a CT wheat-fallow n/a 1983 0-20 20 1.37  
NE01a CT wheat-fallow n/a 1986 0-20 20 1.48  
NE01a CT wheat-fallow n/a 1990 0-20 20 1.20  
NE01b n/a sod n/a 1980 0-20 20 1.55  
NE01b n/a sod n/a 1981 0-20 20 1.46  
NE01b n/a sod n/a 1991 0-20 20 1.59  
NE01b NT wheat-fallow n/a 1980 0-20 20 1.46  
NE01b NT wheat-fallow n/a 1981 0-20 20 1.43  
NE01b NT wheat-fallow n/a 1991 0-20 20 1.54  
NE01b RT wheat-fallow n/a 1980 0-20 20 1.37  
NE01b RT wheat-fallow n/a 1981 0-20 20 1.15  
NE01b RT wheat-fallow n/a 1991 0-20 20 1.20  
NE01b CT wheat-fallow n/a 1980 0-20 20 1.29  
NE01b CT wheat-fallow n/a 1981 0-20 20 0.95  
NE01b CT wheat-fallow n/a 1991 0-20 20 1.12  
SC01 RT corn n/a 1979 0-5 5 0.63  
SC01 RT corn n/a 1979 5-10 5 0.52  
SC01 RT corn n/a 1979 10-15 5 0.39  
SC01 NT corn n/a 1979 0-5 5 0.53  
SC01 NT corn n/a 1979 5-10 5 0.46  
SC01 NT corn n/a 1979 10-15 5 0.45  
SC01 RT corn n/a 1980 0-2.5 2.5 0.64  
SC01 RT corn n/a 1980 2.5-5.0 2.5 0.58  
SC01 RT corn n/a 1980 5.0-7.5 2.5 0.64  
SC01 RT corn n/a 1980 7.5-10.0 2.5 0.52  
SC01 RT corn n/a 1980 10.0-12.5 2.5 0.47  
SC01 RT corn n/a 1980 12.5-15.0 2.5 0.47  
SC01 NT corn n/a 1980 0-2.5 2.5 0.81  
SC01 NT corn n/a 1980 2.5-5.0 2.5 0.70  
SC01 NT corn n/a 1980 5.0-7.5 2.5 0.76  
SC01 NT corn n/a 1980 7.5-10.0 2.5 0.81  
SC01 NT corn n/a 1980 10.0-12.5 2.5 0.70  
SC01 NT corn n/a 1980 12.5-15.0 2.5 0.60  
SC01 RT corn n/a 1981 0-2.5 2.5 0.98  
SC01 RT corn n/a 1981 2.5-5.0 2.5 0.93  
SC01 RT corn n/a 1981 5.0-7.5 2.5 0.70  
SC01 RT corn n/a 1981 7.5-10.0 2.5 0.70  
SC01 RT corn n/a 1981 10.0-12.5 2.5 0.64  
SC01 RT corn n/a 1981 12.5-15.0 2.5 0.60  
SC01 NT corn n/a 1981 0-2.5 2.5 1.10  
SC01 NT corn n/a 1981 2.5-5.0 2.5 0.98  
SC01 NT corn n/a 1981 5.0-7.5 2.5 0.76  
SC01 NT corn n/a 1981 7.5-10.0 2.5 0.76  
SC01 NT corn n/a 1981 10.0-12.5 2.5 0.70  
SC01 NT corn n/a 1981 12.5-15.0 2.5 0.60  
SC01 RT corn n/a 1982 0-2.5 2.5 0.98  
SC01 RT corn n/a 1982 2.5-5.0 2.5 0.81  
SC01 RT corn n/a 1982 5.0-7.5 2.5 0.76  
SC01 RT corn n/a 1982 7.5-10.0 2.5 0.70  
SC01 RT corn n/a 1982 10.0-12.5 2.5 0.52  
SC01 RT corn n/a 1982 12.5-15.0 2.5 0.47  
SC01 NT corn n/a 1982 0-2.5 2.5 1.05  
SC01 NT corn n/a 1982 2.5-5.0 2.5 0.81  
SC01 NT corn n/a 1982 5.0-7.5 2.5 0.76  
SC01 NT corn n/a 1982 7.5-10.0 2.5 0.70  
SC01 NT corn n/a 1982 10.0-12.5 2.5 0.64  
SC01 NT corn n/a 1982 12.5-15.0 2.5 0.52  
SC01 RT corn n/a 1986 0-2.5 2.5 1.34  
SC01 RT corn n/a 1986 2.5-5.0 2.5 1.28  
SC01 RT corn n/a 1986 5.0-7.5 2.5 1.22  
SC01 RT corn n/a 1986 7.5-10.0 2.5 1.22  
SC01 RT corn n/a 1986 10.0-12.5 2.5 1.10  
SC01 RT corn n/a 1986 12.5-15.0 2.5 0.98  
SC01 NT corn n/a 1986 0-2.5 2.5 2.20  
SC01 NT corn n/a 1986 2.5-5.0 2.5 1.74  
SC01 NT corn n/a 1986 5.0-7.5 2.5 1.45  
SC01 NT corn n/a 1986 7.5-10.0 2.5 1.28  
SC01 NT corn n/a 1986 10.0-12.5 2.5 1.22  
SC01 NT corn n/a 1986 12.5-15.0 2.5 1.16  
SC01 RT corn n/a 1988-93 0-5 5 0.72  
SC01 RT corn n/a 1988-93 5-10 5 0.56  
SC01 RT corn n/a 1988-93 10-15 5 0.45  
SC01 NT corn n/a 1988-93 0-5 5 1.20  
SC01 NT corn n/a 1988-93 5-10 5 0.63  
SC01 NT corn n/a 1988-93 10-15 5 0.48  
KA01 CT soybean n/a 1986 0-2.5 2.5 1.14  
KA01 CT soybean n/a 1986 2.5-7.5 5 1.13  
KA01 CT soybean n/a 1986 7.5-15 7.5 1.10  
KA01 CT soybean n/a 1986 15-30 15 0.96  
KA01 NT soybean n/a 1986 0-2.5 2.5 1.43  
KA01 NT soybean n/a 1986 2.5-7.5 5 1.13  
KA01 NT soybean n/a 1986 7.5-15 7.5 1.10  
KA01 NT soybean n/a 1986 15-30 15 1.00  
KA01 CT sorghum-soybean n/a 1986 0-2.5 2.5 1.25  
KA01 CT sorghum-soybean n/a 1986 2.5-7.5 5 1.23  
KA01 CT sorghum-soybean n/a 1986 7.5-15 7.5 1.16  
KA01 CT sorghum-soybean n/a 1986 15-30 15 1.04  
KA01 NT sorghum-soybean n/a 1986 0-2.5 2.5 1.86  
KA01 NT sorghum-soybean n/a 1986 2.5-7.5 5 1.30  
KA01 NT sorghum-soybean n/a 1986 7.5-15 7.5 1.19  
KA01 NT sorghum-soybean n/a 1986 15-30 15 1.03  
KA01 CT sorghum n/a 1986 0-2.5