Distinct mechanisms of soil organic carbon formation in natural and legume-based grasslands on the Loess Plateau, China - Zi-Qiang Yuan; Chao Fang; Tian Ma; Jiu-Ying Pei; Xin Song; Guang-Qian Yao; Jordi Sardans; Josep Penuelas; Xiang-Wen Fang; Feng-Min Li (Soil Biology and Biochemistry, 2025)