Zuoqiang Yuan 

Enhanced rock weathering (ERW) holds promise as a strategy for mitigating carbon dioxide emissions by sequestering carbon in the soil, yet its comprehensive impact on ecosystem multifunctionality (EMF) and microbial dynamics remains uncertain. In this study, we investigated the impacts of ERW on planted EMF, aboveground multifunctionality (AMF) and below-ground multifunctionality (BMF), as well as elucidated the responses of soil microbial diversity and network complexity to ERW. Our findings demonstrate that ERW significantly increased functions related to carbon, nitrogen, phosphorus, enzymes, silicon, and resistance to plant pathogens. Although the impact of ERW on AMF was not significant, higher EMF and BMF were observed with increased ERW. Analysis of belowground functions revealed significant increases in plant pathogen resistance, silicon, and carbon-related functions. In one picture, the partial least squares path modeling (PLS-PM) analysis indicated that ERW primarily increased planted EMF, AMF and BMF indirectly through strong impacts on microbial network complexity compared to microbial diversity. Notably, these findings underscore the crucial role of microbial network complexity in driving planted EMF, even though ERW enhanced both soil microbial diversity and their interactions. This study emphasizes the potential of ERW to bolster ecosystem resilience and highlights its implications for sustainable planted ecosystem management.