Depth-dependent microbial necromass carbon accumulation responses to long-term biochar amendment in croplands. - Song, Kaiyue; Liu, Zhiwei; Ma, Ruiling; Yi, Qi; Zheng, Jufeng; Bian, Rongjun; Cheng, Kun; Xia, Shaopan; Liu, Xiaoyu; Zhang, Xuhui; Li, Lianqing (Biochar, 2026)