Long-term peanut cultivation alters soil organic C stocks and aggregate stability: insights from coupled iron oxide, microbial, and lignin phenol analyses
Introduction The microbial and mineral C pumps play crucial roles in soil organic C (SOC) stabilization via complicated organo-mineral interactions. Yet, how both of them regulate SOC dynamics during peanut cultivation remains elusive. Methods The surface soils from five peanut fields of varying ages (0-, 2-, 5-, 10-,...