Soil organic carbon and its related factors in nine typical areas of returning farmland to forest 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.

本数据集用于撰写《中国造林对土壤有机碳动态的影响》一文，主要涵盖我国9个典型退耕还林区域的土壤有机碳及其相关影响因子的数据信息。各因子具体对应名称如下：土壤有机碳（Soil Organic Carbon，SOC）、土壤有机碳储量（Soil Organic Carbon Storage，Cs）、颗粒态有机碳（Particulate Organic C，POC）、矿质结合态有机碳（Mineral Associated Organic C，MAOC）、全氮（Total Nitrogen，TN）、干旱指数（Aridity Index，AI）、土壤pH值（soil pH，pH）、容重（bulk density，BD）、土壤黏粒含量（Soil clay content，Clay）、土壤砂粒含量（Soil sand content，Sand）、枯落物生物量（Litter biomass，LM）、根系生物量（Root biomass，RM）、土壤含水量（soil water content，SWC）、根系碳氮比（Root carbon nitrogen ratio，RC/N）、枯落物碳氮比（Litter carbon nitrogen ratio，LC/N）、微生物量碳氮比（microbial biomass carbon nitrogen ratio，MBC/MBN）、β-1,4-葡萄糖苷酶（β-1,4-glucosidase，BG）、N-乙酰-β-D-氨基葡萄糖苷酶（N-acetyl-β-D-glucosaminidase，NAG）、酸性磷酸酶（acid phosphatase，AP）。