Soil microbial networks mediate long-term effects of nitrogen fertilization on ecosystem multiservices

We found that soil multiservice predominantly exhibited a hump-shaped response to the increasing levels of N addition across two soil depths. More importantly, changes in the complexity of soil microbial networks were positively correlated with ecosystem multiservices across the two soil depths. This relationship was especially important in explaining topsoil multiservice responses, while in subsoils, multiservices were more strongly associated with abiotic properties than network complexity.