Summary diagram of the most relevant microbial soil functions results based on functional inference and ecological trait assignment.
The figure is made up of 2 parts: studies on bacterial communities based on functional inference on the left and studies on fungal communities based on ecological trait assignment on the right. For all studies (climate change, anthropogenic gradient, agricultural practices, plant diversity, or the biogeochemical cycle), if an effect or a correlation was found on the gene reservoir or on microbial communities with a particular ecological trait, a colored arrow indicates the effect and a cross indicates no significant effect. A triangle indicates either a decrease or an increase of the gene reservoir or microbial communities with a particular trait. References are listed in Additional File 1.