Influence of long-term inorganic fertilization and straw incorporation on soil organic carbon: Roles of enzyme activity, labile organic carbon fractions, soil aggregates, and microbial traits - Ning Wang; Zhipin Ai; Qiuying Zhang; Peifang Leng; Yunfeng Qiao; Zhao Li; Chao Tian; Hefa Cheng; Gang Chen; Fadong Li (Agriculture, Ecosystems & Environment, 2025)