Impacts of afforestation on soil organic carbon dynamics in China

This data is used for writing "Impacts of afforestation on soil organic carbon dynamics in China", mainly introducing the data information of soil organic carbon and its related factors in nine typical areas of returning farmland to forest in China. The following are the specific names of each factor: SOC, soil organic carbon; Cs, soil organic carbon storage; POC, particulate organic C; MAOC, mineral associated organic C; TN, total nitrogen; AI, Aridity index; pH, soil pH; BD, bulk density; Clay, Soil clay content; Sand, Soil sand content; LM, Litter biomass; RM, Root biomass; SWC, soil water content; RC/N, Root carbon nitrogen ratio; LC/N, Litter carbon nitrogen ratio; MBC/MBN, microbial biomass carbon nitrogen ratio; BG, β-1,4-glucosidase; NAG, N-acetyl-β-D-glucosaminidase; AP, acid phosphatase.