Soil carbon fractions data of terracing and ridge planting in Northeast China

For the terrace slope and ridge plant slope, three sampling points were established in an “S”-shaped pattern at each slope position, with three corresponding points at the same positions on the control slope. In August 2024, undisturbed soil samples were collected from three layers: 0–20 cm, 20–40 cm, and 40–60 cm depth. The measured indicators include soil organic carbon (SOC), microbial biomass carbon (MBC) , dissolved organic carbon (DOC), easily oxidizable organic carbon (EOC), particulate and mineral-associated organic carbon (POC, MAOC), and steady-state organic carbon (S-SOC ). Table 1 shows the data of carbon fractions in terracing slope, Table 2 shows the relevant data of carbon fractions in ridge planting slope, and Table 3 shows the basic physical and chemical properties of the soil.