Responses of particulate and mineral-associated organic carbon to improved agronomic management: A global perspective at profile scale

Disaggregating soil organic carbon (SOC) into labile particulate organic carbon (POC) and stable mineral-associated organic carbon (MAOC) fractions offers a more mechanistic understanding of soil carbon dynamics. Responses of profile-scale POC and MAOC to strategic agronomic management practices (e.g., cover cropping, fertilization, straw return) remain unclear. This dataset was used to quantifies the impact of improved management practices on POC and MAOC in deep soil profiles (> 30 cm).将土壤有机碳（soil organic carbon, SOC）拆解为活性颗粒态有机碳（labile particulate organic carbon, POC）与稳定矿质结合态有机碳（stable mineral-associated organic carbon, MAOC）两个组分，可从机制层面更深入地认知土壤碳动态过程。当前，剖面尺度下POC与MAOC对策略性农艺管理措施（如覆盖种植、施肥、秸秆还田）的响应仍不明晰。本数据集旨在量化优化后的管理措施对30厘米以下深层土壤剖面中POC与MAOC的影响。