Soil carbon storage and stratification under different tillage systems in a semi-arid region

▶ Long-term changes in tillage methods affect the accumulation rate of SOC. ▶ Stocks of SOC increased under no-till compared with minimum and conventional tillage. ▶ No-till was the most effective treatment to accumulated SOC at the soil surface. ▶ No-till increased the stratification ratios of SOC.