Original ResearchPublished 9 October 2026Long-term peanut cultivation alters soil organic C stocks and aggregate stability: insights from coupled iron oxide, microbial, and lignin phenol analysesYingru Liu · Shunli Cui · Shengchun Zhou · Haixin Wang · Yibo Wang · Puxiang Shi · Lifeng LiuFrontiers in Microbiologydoi 10.3389/fmicb.2026.1971411