Contrasting drivers of microbial necromass carbon accumulation in Chinese croplands: Bacterial dominance in particulate fractions versus fungal-mineral control of mineral-associated pools
The microbial community components governing microbial necromass carbon in particulate versus mineral-associated soil fractions remain poorly resolved, limiting predictive understanding of soil carbon persistence under global change. These findings refine soil carbon models by establishing fraction-dependent microbial-mineral association, highlighting that management strategies harnessing bacteria-driven POM and fungal-mineral MAOM synergies could lead to optimized cropland carbon sequestration.