Number of global change factors alters the relative roles of abundant and rare microbes in driving soil multifunctionality resistance.

There is increasing evidence that ecosystems are affected by multiple global change factors, impeding the sustainability of multiple soil functions. Biodiversity can buffer ecosystem functions against environmental changes, a concept largely supported by insurance and portfolio theories. However, the role of soil biodiversity, especially the diversity of abundant and rare microbial taxa, in regulating soil multifunctionality resistance under an increasing number of global change factors remains poorly explored.