Conclusion
Overall, many of the GCs and environmental stressors studied here
reduced soil biodiversity, irrespective of the body size of the
organisms or habitat type. However, there are notable exceptions where a
biodiversity increase occurred, namely with addition of more
organic-based nutrient enrichments. Given the profound decline of soil
biodiversity due to pollution, a GC that is understudied in aboveground
literature, we emphasize the need to increase research on its impact
across all realms. By classifying GCs and environmental stressors in
terms of pulse or press traits we were able to link the similarities
between the different stressors in terms of their mechanisms with the
ways they may impact soil fauna communities. As the responses of soil
organisms to GCs and environmental stressors differed from published
responses of aboveground organisms, soil biodiversity needs to be
explicitly included into large-scale analyses of global change impacts.