Influence of winter-fallow management strategies on the stability of soil organic matter in a typical rice paddy region of southwestern China - Meihui Tian; Sihua Zhu; Bin Liu; Jitao Lv; Shanyi Tian; Rong Huang; Xiaohong Zuo; Meichun Duan; Yongguang Yin; Tao Jiang; Dingyong Wang; Xinping Chen (Agriculture, Ecosystems & Environment, 2026)